CN119527136A - Manual adjustment device for backrest angle of rear seat of automobile and rear seat of automobile - Google Patents
Manual adjustment device for backrest angle of rear seat of automobile and rear seat of automobile Download PDFInfo
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- CN119527136A CN119527136A CN202411630175.0A CN202411630175A CN119527136A CN 119527136 A CN119527136 A CN 119527136A CN 202411630175 A CN202411630175 A CN 202411630175A CN 119527136 A CN119527136 A CN 119527136A
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- base plate
- vehicle body
- plate
- torsion spring
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- 238000013016 damping Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/2245—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable provided with a lock mechanism on the upper part of the back-rest
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
一种汽车后排座椅靠背角度手动调节装置及其汽车后排座椅，属于车辆技术领域。包括一车体固定基板，在使用状态下与车体固定；一靠背角度锁定与解锁机构，设在车体固定基板上；一锁定与解锁控制机构，铰接在靠背角度锁定与解锁机构上；一锁钩件，与靠背角度锁定与解锁机构连接且同时与汽车后排座椅靠背连接；特点是：在车体固定基板上以间隔状态开设有基板闩柱孔，靠背角度锁定与解锁机构左右移动地设在车体固定基板上且受锁定与解锁控制机构的作用而在对应于基板闩柱孔的位置与车体固定基板闩合锁定或解除闩合锁定。优点：锁定可靠，保障坐乘者的舒适性和安全性；在对汽车后排座椅靠背角度调节的过程中不会产生噪声并且体现调节轻巧与省力。
A manual adjustment device for the backrest angle of a rear seat of a car and a rear seat of the car belong to the field of vehicle technology. It includes a vehicle body fixed base plate, which is fixed to the vehicle body in the use state; a backrest angle locking and unlocking mechanism, which is arranged on the vehicle body fixed base plate; a locking and unlocking control mechanism, which is hinged on the backrest angle locking and unlocking mechanism; a lock hook, which is connected to the backrest angle locking and unlocking mechanism and is also connected to the backrest of the rear seat of the car; the characteristics are: a base plate latch post hole is provided in an interval state on the vehicle body fixed base plate, and the backrest angle locking and unlocking mechanism is arranged on the vehicle body fixed base plate to move left and right and is latched or unlocked with the vehicle body fixed base plate at the position corresponding to the base plate latch post hole under the action of the locking and unlocking control mechanism. Advantages: reliable locking, ensuring the comfort and safety of the seat occupants; no noise is generated during the adjustment of the backrest angle of the rear seat of the car, and the adjustment is light and labor-saving.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a manual adjusting device for an angle of a back seat of an automobile, and also relates to the back seat of the automobile.
Background
With the development of the automobile industry, the requirements of people on automobiles are continuously expanding towards depth and breadth, and the angle adjusting function of the back rest (also called as a chair back) of the automobile is generated to meet the requirements of people, because the back rest angle is too steep and cannot be adjusted, a sitting person can feel uncomfortable back and the sitting time is slightly long, and the pain of the waist and the like can be generated.
The angle adjusting device of the back row seat backrest of the automobile mainly comprises a manual type device and an electric type device. In the former case, i.e. in the manual mode, the use of a mechanical structure results in a relatively low production cost, a relatively low price and a low maintenance cost, since the manual adjustment device is simple in structure and not easily damaged, and since the manual adjustment is generally more reliable and less prone to troublesome faults. However, the only disadvantage is that the manual adjusting device needs to be operated manually, unlike the electric adjusting operation which is convenient and quick, and in addition, the attractive appearance is relatively inferior, and the appearance is seemingly lacking in the sense of science and technology and fashion, and the latter is that the electric adjusting device has the advantages of convenient and quick adjusting, strong science and technology and relatively high comfort, but the existing disadvantage is that the maintenance cost in manufacturing and using is high, if faults occur, the maintenance is troublesome and complicated, the reliability is low, and the probability of faults is high although the complex structure has relatively strong appearance and function. Based on the foregoing, and from the desirability of practical use by people, standing at a physical point of view, the overall advantage of manual adjustment devices is significantly greater than that of electric adjustment devices.
Technical information of various structures of the angle adjustment device for the rear seat back of the automobile is visible in the published chinese patent documents, such as CN216610960U recommends "a rear seat back angle adjustment mechanism", CN211401214U provides "a rear seat back angle adjustment mechanism of the automobile", CN218519564U discloses "a rear seat back angle adjustment mechanism" and CN205059321U introduces "a rear seat back angle adjustment mechanism of the automobile", not limited to the aforementioned patents, which are exemplified, but the angle adjustment of the backrest is realized by using the recliner in the form of a toothed plate, and since the drawbacks of this structural form have been pointed out in the description background section 0005 of the patent of "a back angle adjustment mechanism for the rear seat of the automobile and a track" issued by CN211765085U, the inventor of the present application will not be repeated. However, the aforementioned CN211765085U adopts an electrodynamic structure (see, in particular, paragraphs 0044 to 0054 of the specification thereof), and thus has the corresponding drawbacks mentioned above by the applicant.
The manual multi-position adjusting and locking device for the back of the rear seat of the motor vehicle disclosed by CN212047012U adopts a manual adjusting structure, which can objectively take over the technical effects summarized in the 0013 section of the specification, but the patent still has the defect that the metal wedge is disengaged (released) from the teeth on the rack (the toothed plate) by driving the metal wedge as the pulling rope to rotate by an angle during the adjustment of the angle of the back according to the description of the adjusting process in the specification, namely under the manual operation, after the back is adjusted to a desired angle, the metal wedge is released as the pulling rope to restore the engagement with the rack by loosening the metal wedge as the pulling rope. The reliability of the engagement of the metal chock with the rack is thus difficult to ensure, when the vehicle encounters impact conditions such as jolt, sudden braking, there is a risk of improper disengagement between the metal chock and the rack, affecting the safety of the occupant, since the backrest is adjusted by sliding the hooking members with respect to the base frame (the "support plate") which is statically fixed to the vehicle body, the metal chock will rub against the walls of the cavity of the rack, causing damage to both the metal chock and the rack, and during the adjustment, rattling noise will be unavoidable, and, as mentioned above, the rack is extremely susceptible to tooth breakage, resulting in the complete adjustment device being in the name of a real life, when the above-mentioned conditions such as jolt, sudden braking, etc. are encountered.
Disclosure of Invention
The invention aims at providing a manual adjusting device for the back angle of a back row seat of an automobile, which is beneficial to changing a design mode of a rack into a structure mode of latching or unlatching so as to fully ensure that the back is locked at an adjusted angle position and prevent locking failure caused by severe jolt, sudden brake and the like of the automobile.
Another object of the present invention is to provide a manual adjustment device for the back-row seat back angle of a vehicle which is advantageous in changing the engagement pair of the prior art to a sliding pair so as to avoid noise during adjustment.
Still another object of the present invention is to provide a rear seat for an automobile, which can fully embody the technical effects of the manual adjustment device for the back angle of the rear seat for an automobile.
The technical scheme includes that the manual adjustment device comprises a vehicle body fixing base plate, a backrest angle locking and unlocking mechanism, a locking and unlocking control mechanism and a latch hook piece, wherein the vehicle body fixing base plate is fixed with a vehicle body in a use state, the backrest angle locking and unlocking mechanism is arranged on the vehicle body fixing base plate, the locking and unlocking control mechanism is used for driving the backrest angle locking and unlocking mechanism to be locked or unlocked with the vehicle body fixing base plate and hinged to the backrest angle locking and unlocking mechanism, the latch hook piece is fixedly connected with the backrest angle locking and unlocking mechanism and is simultaneously fixedly connected with a vehicle rear seat backrest in the use state, the base plate latch post holes are formed in the vehicle body fixing base plate in a spaced state, and the backrest angle locking and unlocking mechanism is arranged on the vehicle body fixing base plate in a left-right moving mode and is locked or unlocked with the vehicle body fixing base plate at positions corresponding to the base plate latch post holes under the action of the locking and unlocking control mechanism.
In a specific embodiment of the present invention, the left end of the vehicle body fixing base plate is folded and unfolded to form a vehicle body fixing base plate left fixing arm, the right end is folded and unfolded to form a vehicle body fixing base plate right fixing arm, the vehicle body fixing base plate left and right fixing arms are fixed with the vehicle body in a use state, the base plate latch post holes are formed in a region in the length direction of the vehicle body fixing base plate between the vehicle body fixing base plate left and right fixing arms in a spaced state, and the backrest angle locking and unlocking mechanism, together with the locking and unlocking control mechanism and the latch hook member, is arranged in a region in the length direction of the vehicle body fixing base plate between the vehicle body fixing base plate left and right fixing arms in a left-right moving manner.
In another specific embodiment of the present invention, the backrest angle locking and unlocking mechanism includes a slide guide plate, a latch plate, a housing, a set of latch posts and a set of latch post return springs, the slide guide plate being located at the rear side of the vehicle body fixing base plate and slidably engaged with the rear side, the upper side and the lower side of the vehicle body fixing base plate in a side-by-side manner, the latch plate being located at the front side of the vehicle body fixing base plate and slidably engaged with the front side of the vehicle body fixing base plate in a side-by-side manner, a set of latch post relief holes equal in number to the set of latch posts being provided on the latch plate at a spacing corresponding to the position of the base plate latch post holes, the housing corresponding to the front side of the latch post plate, a housing cavity being formed at a lower portion of the housing in the height direction and toward one side of the latch post plate, a plurality of latch post supporting holes which are also equal to the plurality of latch posts are arranged at intervals at positions corresponding to the housing cavity, the plurality of latch post supporting holes correspond to the plurality of latch post yielding holes, the rear ends of the plurality of latch posts are movably placed on the upper part of the locking and unlocking control mechanism back and forth and extend to the rear side of the latch post locking plate through the plurality of latch post yielding holes and are penetrated into or withdrawn from the base latch post holes, the front ends of the plurality of latch posts are supported on the plurality of latch post supporting holes, the plurality of latch post restoring springs are respectively sleeved on the front ends of the plurality of latch posts, the rear ends of the plurality of latch post restoring springs are supported on the front sides of latch post supporting step rings which are formed on the plurality of latch posts and have diameters larger than those of the plurality of latch posts, the front ends of the plurality of latch post restoring springs are supported on the cavity wall of the housing cavity, the upper end of the housing is fixed with the upper end of the guide slide plate through a pair of upper fasteners after sequentially penetrating through a latch post lock plate upper fastener hole formed in the upper end of the latch post lock plate and a guide slide plate upper fastener hole formed in the upper end of the guide slide plate, the lower end of the housing is fixed with the lower end of the guide slide plate through a pair of lower fasteners after sequentially penetrating through a latch post lock plate lower fastener hole formed in the lower end of the latch post lock plate and a guide slide plate lower fastener hole formed in the lower end of the guide slide plate, the locking and unlocking control mechanism is hinged on the housing, and the locking hook piece is fixedly connected with the latch post lock plate.
In another specific embodiment of the present invention, a latch member end fixing hole is formed in the latch plate and at positions corresponding to the left and right sides of the set of latch member relief holes, the latch member is formed with a latch member first end and a latch member second end, the latch member first end is fixed to the latch member end fixing hole at a position corresponding to the left side of the set of latch member relief holes, and the latch member second end is fixed to the latch member end fixing hole at a position corresponding to the right side of the set of latch member relief holes, and a back connecting hook head is formed at the front end of the latch member, the back connecting hook head being fixedly connected to the back of the rear seat in the use state.
In a further specific embodiment of the present invention, a pair of torsion spring shaft support seats corresponding to each other and spaced apart from each other extend downward from the lower end of the housing, and the locking and unlocking control mechanism is hinged to the lower end of the housing at a position corresponding to between the pair of torsion spring shaft support seats.
In a further specific embodiment of the present invention, the locking and unlocking control mechanism includes a torsion spring shaft, a lock catch and a torsion spring, a pair of torsion spring shaft supports corresponding to each other are formed at front sides of middle portions of the lock catch, the pair of torsion spring shaft supports correspond to between the pair of torsion spring shaft support seats, a torsion spring shaft support hole is formed on the pair of torsion spring shaft supports and at positions corresponding to each other, a set of torsion spring shaft sliding support concave cavities corresponding to the positions of the set of lock catches are formed at upper ends of the lock catch in a spaced state, rear ends of the set of lock catches are supported on the set of lock catch sliding support concave cavities in a back-and-forth moving manner, the lock catch supporting stepped ring corresponds to front sides of the set of the lock catch sliding support concave cavities, the torsion spring shaft is inserted in the pair of torsion spring shaft support seats and the pair of torsion spring shaft support seats corresponding to positions of the torsion spring shaft support holes formed on the pair of torsion spring shaft support seats, a traction cable is limited at positions of the torsion spring shaft support seats corresponding to the torsion spring shaft support seats, and the pair of torsion spring shaft support seats, a traction cable is limited at positions of the torsion spring shaft support seats corresponding to the middle portions of the tension cable, the traction cable is limited at positions of the middle portions of the tension cable, the traction cable is limited at the lower ends of the middle portions of the tension cable, the traction cable is limited at the middle portions of the tension cable, the tension cable is fixed at the lower ends of the tension cable, the tension cable is fixed at the middle portions, the position of the cable wire core wire end fixing head of one end part of the cable wire core wire movably positioned in the outer sleeve is limited on the cable wire traction plate at the position of the cable wire core wire end fixing head limiting cavity, and the other end of the cable wire core wire is arranged on the hand of the cable wire core wire plate at the front edge of the seat surface, the side surface of the seat and the upper part of the seat corresponding to the lower part of the back rest or the back of the seat.
In a further specific embodiment of the invention, a cable wire core outer sleeve positioning sleeve limiting plate extends downwards at the lower end of the guide plate and at a position corresponding to the cable wire traction plate, an outer sleeve positioning sleeve cavity is formed on the cable wire core outer sleeve limiting plate and at a position corresponding to the cable wire end fixing head limiting cavity, and in a use state, the position of the cable wire core outer sleeve positioning sleeve of the cable wire core is limited on the cable wire core outer sleeve positioning sleeve limiting plate.
In a further specific embodiment of the invention, a buffer damping sleeve is arranged on the latch set and at the position corresponding to the rear side of the latch set supporting step ring, the rear side surface of the buffer damping sleeve corresponds to the front side surface of the latch set sliding supporting concave cavity, the peripheral edge part of the front side surface of the buffer damping sleeve is provided with a stack edge which is enveloped on the side surface of the latch set supporting step ring in the circumferential direction, and the number of the latch set, the latch set reset spring, the latch set yielding hole and the latch set supporting hole is two to five.
In order to achieve the other task of the invention, the technical scheme is that a guide slide plate sliding cavity is formed in the middle of the guide slide plate in the height direction, front guide slide ribs protruding from the front side surface of the vehicle body fixing base plate are formed at intervals along the length direction of the vehicle body fixing base plate on the upper part and the lower part of the front side of the vehicle body fixing base plate, rear guide slide ribs protruding from the rear side surface of the vehicle body fixing base plate are formed at intervals along the length direction of the vehicle body fixing base plate on the upper part and the lower part of the rear side of the vehicle body fixing base plate, the guide slide plate sliding cavity, the upper surface, the lower surface and the rear guide slide ribs of the vehicle body fixing base plate form a sliding pair, and the rear side surface of the latch post lock plate and the front guide slide ribs form the sliding pair.
The invention further provides a technical scheme that the manual adjusting device for the back angle of the automobile back row seat is arranged on the automobile back row seat.
The technical scheme provided by the invention has the technical effects that the angle of the back seat backrest of the automobile can be adjusted according to requirements when the back angle locking and unlocking mechanism exits from the base plate latch post hole to release the adjustable state of latching locking with the automobile fixed base plate, and further, the angle of the back seat backrest of the automobile can be adjusted according to requirements by adopting a structural form of latching or releasing latching with the base plate latch post hole by adopting a rack in the prior art through the cooperation of the latch post and the rack in the prior art, so that the automobile has excellent locking and reliable effect, abnormal unlocking caused by severe and emergency braking due to special road conditions and special situations in the driving process of the automobile can be avoided, the comfort and the safety of passengers can be fully ensured, and the angle of the back seat backrest and the sliding guide bar can not be adjusted due to the fact that the front side surface and the back side surface of the fixed base plate and the automobile are respectively formed by the sliding guide bar and the sliding guide bar, and the sliding guide bar are not in the sliding angle regulation process of the sliding guide bar, and the sliding guide bar is not realized, and the sliding angle of the sliding guide bar is not adjusted, and the sliding structure is formed in the sliding way.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of the three-dimensional assembly of FIG. 1 of the present invention;
Fig. 3 is a detailed construction view of the vehicle body-fixing substrate shown in fig. 1 and 2;
FIG. 4 is a schematic view showing a first state in which a backrest angle locking and unlocking mechanism of the present invention is locked with a vehicle body fixing base plate;
Fig. 5 is a schematic view showing a second state in which the backrest angle locking and unlocking mechanism of the present invention is locked with the vehicle body fixing base plate.
Detailed Description
In order that the technical spirit and advantages of the present invention may be more clearly understood, reference will now be made in detail to the following examples, which are not intended to limit the scope of the invention, but rather are merely equivalent in form to the present invention.
In the following description, any concept related to directionality or azimuth of up, down, left, right, front, rear, inner and outer is based on the current position state of fig. 1, and thus, it should not be construed as a specific limitation of the technical solution provided by the present invention.
Referring to fig. 1 and 2, the manual adjustment device for the back angle of the rear seat of the automobile has the specific structure that a vehicle body fixing base plate 1 is shown, the vehicle body fixing base plate 1 is fixed with the vehicle body in a use state, a back angle locking and unlocking mechanism 2 is shown, the back angle locking and unlocking mechanism 2 is arranged on the vehicle body fixing base plate 1, a locking and unlocking control mechanism 3 (also called a locking and unlocking operation mechanism) for driving the back angle locking and unlocking mechanism 2 to be locked or unlocked with the vehicle body fixing base plate 1 is shown, the locking and unlocking control mechanism 3 is hinged with the back angle locking and unlocking mechanism 2, and a locking hook 4 is shown, wherein the locking hook 4 is fixedly connected with the back angle locking and unlocking mechanism 2 and is simultaneously fixedly connected with the back seat of the automobile in the use state.
The technical point of the technical scheme provided by the invention is that the vehicle body fixing base plate 1 is provided with base plate latch column holes 11 at intervals in the length direction of the vehicle body fixing base plate 1, the backrest angle locking and unlocking mechanism 2 is arranged on the vehicle body fixing base plate 1 in a left-right moving mode, namely in a left-right sliding mode, and is in latch locking or unlocking with the vehicle body fixing base plate 1 at a position corresponding to the base plate latch column holes 11 under the action of the locking and unlocking control mechanism 3.
In the above, the applicant mentioned that the vehicle body fixing base plate 1 is fixed to the vehicle body, and the approximate position of the vehicle body referred to herein is a position corresponding to the C-pillar portion of the vehicle such as a car, the C-pillar being pillars on both sides of the rear windshield of the vehicle, being located in the rear portion of the vehicle body, the C-pillar serving to support the roof and the rear windshield, being an important constituent of the structure of the vehicle, contributing to maintaining the overall stability and strength of the vehicle body. The C column can bear certain collision energy, and the safety of rear-row passengers is protected. The C column plays a role in vehicle design in enabling the whole line of the vehicle body to be smoother and attractive. Since the more specific contents of the fixing base plate 1 of the present invention to be fixed to the vehicle body in the use state can be seen from the description of the applicant such as chinese patent publication No. CN211765085U and the drawing thereof mentioned in the above background section, and the above mentioned locking hook member 4 to be fixedly connected to the back seat back of the vehicle in the use state can be seen from CN211765085U as well, the applicant will not be explained in detail in the following.
The left end of the body fixing base plate 1 is folded and unfolded to form a body fixing base plate left fixing arm 12, the right end is folded and unfolded to form a body fixing base plate right fixing arm 13, the body fixing base plate left and right fixing arms 12, 13 are fixed with the body in a use state, the base plate latch post holes 11 are formed in a region in the length direction of the body fixing base plate 1 between the body fixing base plate left and right fixing arms 12, 13 in a spacing state, and the backrest angle locking and unlocking mechanism 2 is arranged in a region in the length direction of the body fixing base plate 1 between the body fixing base plate left and right fixing base plates 12, 13 in a manner of moving left and right together with the locking and unlocking control mechanism 3 and the latch hook 4.
Referring to fig. 3, and referring to fig. 1 and 2, as shown in fig. 1 to 3, a vehicle body fixing substrate hole 16 is formed at each of the left and right ends of the vehicle body fixing substrate 1, a left fixing arm fixing hole 121 is formed at the end of the left vehicle body fixing substrate fixing arm 12, and a right fixing arm fixing hole 131 is formed at the end of the right vehicle body fixing substrate fixing arm 13. In the use state, the entire vehicle body fixing base plate 1 is fixed to the vehicle body at the C-pillar portion of the vehicle as already described above by corresponding fasteners such as screws or bolts in correspondence with, i.e., passing through, the aforementioned vehicle body fixing base plate hole 16, left fixing arm fixing hole 121, and right fixing arm fixing hole 131.
With continued reference to fig. 1 to 2, the backrest angle locking and unlocking mechanism 2 includes a slide guide 21, a latch plate 22, a housing 23, a set of latch posts 24, and a set of latch post return springs 25, the slide guide 21 being located at the rear side of the vehicle body fixing base plate 1 and slidably engaged with the rear side, the upper side, and the lower side of the vehicle body fixing base plate 1 in a side-to-side manner, the latch plate 22 being located at the front side of the vehicle body fixing base plate 1 and slidably engaged with the front side of the vehicle body fixing base plate 1 in a side-to-side manner, a set of latch post relief holes 221 equal in number to the set of latch posts 24 being provided on the latch post plate 22 at a position corresponding to the base plate latch post holes 11 at a spacing, the housing 23 corresponding to the front side of the latch post plate 22, a housing cavity 231 being formed at a lower portion in the height direction of the housing 23 and toward the side of the latch post plate 22, a plurality of bolt support holes 232, the number of which is equal to the plurality of bolt support holes 232 of the plurality of bolt 24, are provided at positions corresponding to the housing chambers 231, the plurality of bolt support holes 232 correspond to the plurality of bolt relief holes 221 of the plurality of bolt 24, the rear ends of the plurality of bolt support holes 24 are supported on the upper part of the locking and unlocking control mechanism 3 and extend to the rear side of the bolt plate 22 through the plurality of bolt relief holes 221 of the plurality of bolt relief holes, and are inserted into or withdrawn from the base plate bolt holes 11, the front ends of the plurality of bolt support holes 24 are supported on the plurality of bolt support holes 232 of the plurality of bolt 24, the rear ends of the plurality of bolt return springs 25 are supported on the front sides of bolt support step rings 241 having diameters larger than those of the plurality of bolt 24 formed on the plurality of bolt 24, and the front ends of the plurality of bolt return springs 25 are supported on the walls of the housing chambers 231, wherein the upper end of the housing 23 is fixed to the upper end of the guide plate 21 through a pair of upper fasteners 233 sequentially passing through a latch post lock plate upper fastener hole 222 formed at the upper end of the latch post lock plate 22 and a guide plate upper fastener hole 211 formed at the upper end of the guide plate 21, together with the upper end of the latch post lock plate 22, and the lower end of the housing 23 is fixed to the lower end of the guide plate 21 through a pair of lower fasteners 234 sequentially passing through a latch post lock plate lower fastener hole 223 formed at the lower end of the latch post lock plate 22 and a guide plate lower fastener hole 212 formed at the lower end of the guide plate 21, together with the lower end of the latch post lock plate 22, the locking and unlocking control mechanism 3 is hinged to the housing 23, and the latch hook 4 is fixedly connected to the latch post lock plate 22. It should be noted that the timing at which the rear ends of the set of latch posts 24 rest on the upper portion of the lock and unlock control mechanism 3 in a back-and-forth movement is during the period in which the set of latch posts 24 exit or latch into the base plate latch post hole 11, because when the lock and unlock control mechanism 3 comes out of contact with the set of latch posts 24, there is no case in which the set of latch posts 24 rest on the lock and unlock control mechanism 3 in a back-and-forth movement.
In the present embodiment, the above-mentioned upper and lower fasteners 233, 234 are rivets, specifically, the cover 23, the latch plate 22 and the slide guide 21 are riveted as a single body by a pair of upper rivets and a pair of lower rivets. Further, as shown in fig. 1 to 3, the substrate latch post holes 11 in the present embodiment are rectangular holes, but it is not necessarily meant to be rectangular holes, for example, oval holes, and the width of the substrate latch post hole gauge strip 111 between each two adjacent substrate latch post holes 11 is equal to the width of the space between each two adjacent latch post relief holes in the set of latch post relief holes 221 and also equal to the width of the space between each two adjacent latch post support holes in the set of latch post support holes 232.
As shown in fig. 1, a latch member end fixing hole 224 is formed in the latch plate 22 and at positions corresponding to the left and right sides of the set of latch member relief holes 221, the latch member 4 is formed with a latch member first end 41 and a latch member second end 42, the latch member first end 41 is fixed to the latch member end fixing hole 224 at a position corresponding to the left side of the set of latch member relief holes 221, the latch member second end 42 is fixed to the latch member end fixing hole 224 at a position corresponding to the right side of the set of latch member relief holes 221, and the front end of the latch member 4 is formed with a back connecting hook 43, and the back connecting hook 43 is fixedly connected to the back of the rear seat of the automobile in use (mentioned above).
Preferably, a first end positioning step ring 411 is formed at the first end 41 of the latch hook member, and a second end positioning step ring 421 is formed at the second end 42 of the latch hook member. In return, a recess 225 is formed in the latch plate 22 at a position corresponding to the periphery of the end fixing hole 224 of the latch hook member, and the first and second end positioning step rings 411 and 421 are welded to the latch plate 22 at positions in the recess 225. However, fasteners such as nuts may be used to secure the aforementioned shackle member first and second ends 41, 42 through a pair of shackle member end fixing holes 224 at the rear side of the shackle member plate 22, in which case the shackle member first and second ends 41, 42 are threaded. The shackle member first and second ends 41, 42 may also be staked to the shackle member end fixing holes 224 at positions corresponding to the shackle member end fixing holes 22. In summary, the invention is not limited to any particular manner of securing the shackle member 4 to the shackle plate 22.
With continued reference to fig. 1, a pair of torsion spring shaft holders 235, which correspond to each other and are spaced apart from each other, extend downward from the lower end of the housing 23, and the lock and unlock control mechanism 3 is hinged to the lower end of the housing 23 at a position corresponding to between the pair of torsion spring shaft holders 235.
The lock and unlock control mechanism 3 includes a torsion spring shaft 31, a lock catch 32, and a torsion spring 33, a pair of torsion spring shaft holders 321 are formed on the middle front side of the lock catch 32 at positions corresponding to each other left and right, a torsion spring shaft holder hole 3211 is formed in each of the positions corresponding to each other on the pair of torsion spring shaft holders 321, a plurality of bolt slide support cavities 322 equal in number to the plurality of bolt posts 24 are formed at the upper end of the lock catch 32 in a spaced state, the rear ends of the plurality of bolt posts 24 are supported on the plurality of bolt post slide support cavities 322 so as to be movable back and forth, the bolt post support step ring 241 corresponds to the front side of the plurality of bolt post slide support cavities 322, the torsion spring shaft 31 is interposed (i.e. "hinged") on the pair of torsion spring shaft support seats 235 and the pair of torsion spring shaft supports 321 at positions corresponding to the torsion spring shaft support seat holes 2351 opened on the pair of torsion spring shaft support seats 235 and the aforementioned torsion spring shaft support holes 3211, and is defined by a defined nut, a snap spring or cotter pin or a clinching manner, which is not shown in the drawings, screwed to the right end portion of the torsion spring shaft 31, the torsion spring 33 is sleeved on the middle portion of the torsion spring shaft 31 and is located between the pair of torsion spring shaft supports 321, the first torsion spring leg 331 of the torsion spring 33 is abutted against the middle portion of the locker 32 at a position corresponding to the upper portion of the left one of the pair of torsion spring shaft supports 321, and the second torsion spring leg 332 of the torsion spring 33 is abutted against the locker 321 at a position corresponding to the lower portion of the middle portion of the torsion spring shaft 31, the lower end of the locker 32 is configured as a cable wire rope plate 323, the cable core fixing head limiting chamber 3231 is configured on the cable rope pulling plate 323, in the use state, the position of the cable wire core end fixing head of the cable wire core end movably positioned in the outer sleeve, i.e. at one end of the cable wire core positioned in the outer sleeve, is limited on the cable wire traction plate 323 at the position of the cable wire core end fixing head limiting cavity 3231, and the other end of the cable wire core is arranged on the cable wire core wrench which is arranged on the front edge of the front surface of the chair seat, the side surface of the chair seat, and corresponds to the upper part of the chair back below the chair back rest or the back of the chair back.
A cable wire core outer sleeve positioning sleeve defining plate 213 is extended downward at a position corresponding to the cable wire pulling plate 323 at a lower end of the guide plate 21, an outer sleeve positioning sleeve cavity 2131 is provided at a position corresponding to the cable wire end fixing head limiting cavity 3231 on the cable wire core outer sleeve defining plate 213, and a cable wire core cable wire outer sleeve positioning sleeve of the cable wire core is defined at the outer sleeve positioning sleeve cavity 2131 on the cable wire core outer sleeve positioning sleeve defining plate 213 in a use state.
Since the above-mentioned overall structure of the cable wire core located in the outer jacket, i.e., in the outer jacket, is like the structure of the throttle wire of a motorcycle seen in the daily life, the connection form with the cable wire pulling plate 323 and the cable wire core outer sleeve positioning sleeve defining plate 213 is similar to that on a motorcycle, and the cable wire core is movable in the outer jacket positioning sleeve, the applicant briefly describes in connection with fig. 1 that a cable wire 5 is shown in fig. 1, the cable wire 5 includes a cable wire core 51, the end of the cable wire core 51 is fixed with a cable wire core end fixing head 511, the cable wire core end fixing head 511 is defined on the cable wire pulling plate 323, and the cable wire core outer sleeve positioning sleeve 5121 on the cable wire core outer sleeve 512 of the cable wire core 51 is positioned on the cable wire core outer sleeve defining plate 213. The other end of the cable wire core 51 is connected to a wrench (i.e., the aforementioned cable wire core wrench, which may also be referred to as a "grip") that is provided at the side of the seat or at other appropriate locations.
In the present embodiment, it is reasonable to provide a buffer damping sleeve 242 on each of the above-mentioned latch set 24 and at positions corresponding to the rear sides of the above-mentioned latch set supporting stepped ring 241, the rear side of the buffer damping sleeve 242 corresponds to the front side surface of the above-mentioned latch set sliding supporting cavity 322, and the circumferential edge portion of the front side of the buffer damping sleeve 242 is formed with a stack edge which is enveloped on the circumferential side of the latch set supporting stepped ring 241, and in the present embodiment, it is shown that three of each of the above-mentioned latch set 24, the above-mentioned latch set restoring spring 25, the above-mentioned latch set yielding hole 221 and the above-mentioned latch set supporting hole 232 are provided, however, it is also possible to provide two, four or five of each, and thus the present invention is not limited by the number of the above-mentioned components and the related technical features. That is, if the number of the foregoing components and the related technical features is increased or decreased in form for the purpose of circumventing the present invention, it is needless to say that the technical spirit of the present disclosure still falls within the scope of the present invention.
Preferably, a guide slide chamber 214 is formed at the middle part of the guide slide 21 in the height direction, front guide slide ribs 14 protruding from the front side surface of the vehicle body fixing base plate 1 are formed at intervals in the longitudinal direction of the vehicle body fixing base plate 1 at the upper and lower parts of the front side of the vehicle body fixing base plate 1, rear guide slide ribs 15 protruding from the rear side surface of the vehicle body fixing base plate 1 are formed at intervals in the longitudinal direction of the vehicle body fixing base plate 1 at the upper and lower parts of the rear side of the vehicle body fixing base plate 1 (shown in fig. 4 and 5), the guide slide chamber 214 and the upper and lower surfaces of the vehicle body fixing base plate 1 and the rear guide slide ribs 15 form a slide pair, and the rear side surface of the latch plate 22 and the front guide slide ribs 14 form a slide pair. The sliding pair can effectively reduce friction force and avoid generating unpleasant noise in the adjusting process.
The invention also provides an automobile back seat, which is provided with the manual angle adjusting device for the automobile back seat backrest.
Referring to fig. 4 and 5 in conjunction with fig. 1 to 2, fig. 4 shows the backrest angle locking and unlocking mechanism 2 in a first state of locking with the vehicle body fixing base plate 1, specifically, two of the latch posts 24 (three in this embodiment) of the structural system of the backrest angle locking and unlocking mechanism 2 are in a state of latching with the base plate latch post holes 11, and the middle one of the latch posts 24 is not locked due to the abutment of the middle one of the latch posts 24 on the spacer 111 located between the two adjacent base plate latch post holes 11.
When the angle of the rear seat back of the automobile in the state shown in fig. 4 is to be adjusted and the set of latch posts 24 of the structural system of the back angle locking and unlocking mechanism 2 of the present invention is to be in the position state shown in fig. 5, then the specific adjustment process is as follows: the seat occupant pulls the wrench (also referred to as "handle") provided on the side of the seat by fingers, so that the Toyota Hantao car is provided on the side of the seat), drives the wire rope core 51, drives the wire rope pulling plate 323 at the lower end of the lock catch 32 by the wire rope core 51, rotates (e.g., rotates clockwise) the lock catch 32 around the torsion spring shaft 31 by overcoming the reaction force of the torsion spring 33 by an angle, acts on the buffer damping sleeve 242 by the front side of the upper end of the lock catch 32, i.e., acts on the latch supporting step ring 241 by the front side of the upper end of the lock catch 32 via the buffer damping sleeve 242, and slides the set of latch posts 24 forward by overcoming the reaction force of the set of latch post return springs 25, the latch post supporting step 241 compresses a set of return springs 24 to store energy during the forward sliding, and after the latch posts 24 are moved forward to withdraw from the base plate latch post holes 11 as shown in fig. 4, the back of the rear seat of the automobile is released from the locked state shown in fig. 4, in which the seat occupant can adjust the angle of the back as needed, that is, the slide guide plate 21 and the latch post locking plate 22 slide along the length direction of the body fixing base plate 1 at the same time, when the back angle adjustment is completed, i.e., the degree desired by the seat occupant is reached, the spanner or the buckle is released immediately, and at the moment, under the restoring force of the set of return springs 25, two of the latch posts 24 (three) in the set of latch posts 24, i.e., the left and middle one of the latch posts 24 in the position shown in fig. 2, are latched into the base plate latch post hole 11, while the right one of the latch posts 24 abuts against the spacer 111 and then acts upon the latch, as shown in fig. 5.
The seat back angle can be adjusted in a limited range of forward or rearward tilting depending on the applicant's adjustment as described above, the limited range being dependent on the length of the body securing base plate 1 and the length and spacing of the base plate latch post holes 11 thereon. It should be noted that the structure provided by the embodiment can completely meet the adjustment requirement of the seat occupant on the backrest angle.
In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411630175.0A CN119527136A (en) | 2024-11-15 | 2024-11-15 | Manual adjustment device for backrest angle of rear seat of automobile and rear seat of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411630175.0A CN119527136A (en) | 2024-11-15 | 2024-11-15 | Manual adjustment device for backrest angle of rear seat of automobile and rear seat of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119527136A true CN119527136A (en) | 2025-02-28 |
Family
ID=94696247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411630175.0A Pending CN119527136A (en) | 2024-11-15 | 2024-11-15 | Manual adjustment device for backrest angle of rear seat of automobile and rear seat of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119527136A (en) |
-
2024
- 2024-11-15 CN CN202411630175.0A patent/CN119527136A/en active Pending
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