JP2007030596A - Seat cushion pad with seating sensor and seating sensor mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To tightly connect the edge of a seating sensor to the pad body side, and the edge of the seating sensor, in particular, the front part is inadvertently folded during the process of covering the pad body with the pad body or when using a seat cushion pad It is an object of the present invention to prevent the performance of the seating sensor from being deteriorated.
SOLUTION: A seating sensor 30 is provided on the surface of a pad body 10, and a locked member 22 is embedded in the pad body 10. The locked member 22 is provided with a first locked portion 22B in the left-right direction and a second locked portion 22D parallel to the first locked portion 22B. One hook portion 51 of the fixture 50 is locked to the first locked portion 22B so as to straddle a part 40 of the front edge portion of the seating sensor 30, and the other hook portion 51 is locked to the second hooked portion. Locked to the stop 22D.
[Selection] Figure 1

Description

  The present invention relates to a seat cushion pad with a seating sensor used for an automobile, for example, and a seating sensor mounting structure.

  As shown in FIG. 9, the automobile seat generally includes a seat back portion 100 that supports the back of the seated person and a seat cushion portion 101 that supports the buttocks. The seat cushion portion 101 is configured by covering a surface of a seat cushion pad 103 placed on a seat frame 105 with a skin 104 made of woven or knitted fabric or leather. The seat cushion pad 103 includes a pad main body 106 made of a flexible foam such as a flexible polyurethane foam, and a reinforcing cloth 107 integrated with the lower surface of the pad main body 106. In addition, a locking wire (not shown) is embedded in the pad main body 106 at an appropriate position, and the skin 104 is connected to the locking wire via a C-ring (see, for example, Patent Document 1).

  In addition, for example, a seat-like flexible seating sensor is used to determine whether a seated person is seated on a seat such as an auxiliary seat and to control the operating state of components such as an airbag. ing. In some cases, the seating sensor is used while being covered on the upper surface of the pad main body and being interposed between the skin and the pad main body (see, for example, Patent Document 2).

Thus, since the skin covers the pad main body with the seating sensor laid on the upper surface of the pad main body, it is desirable that the seating sensor is not displaced from the pad main body or bent. Therefore, the left and right edges of the seating sensor are connected to the locking wire via a C-ring. Further, the front part of the seating sensor is provided with an insertion hole, and it has been considered that the front part of the seating sensor is connected to the pad body by pushing a bar-like clip inserted through the insertion hole into the pad body. .
Japanese Patent Laid-Open No. 2005-452 JP 2002-211297 A

  When the front part of the seating sensor is fixed by pushing the bar-shaped clip into the pad main body as described above, the pad main body is made of foam, so the bar-shaped clip often comes out of the pad main body and is securely fixed. There is a disadvantage that cannot be done. As a result, in the step of covering the pad body with the skin, the front part of the seating sensor may be inadvertently bent and bent. Even if the skin can be put on the pad body with the clip holding the front part of the seating sensor, the stick-shaped clip can be easily removed from the pad body. When attached and used for a long time, the stick-shaped clip may come off from the pad body. The drooping of the seating sensor adversely affects the performance of the seating sensor, and the airbag may malfunction.

  In the present invention, the edge of the seating sensor can be firmly connected to the pad body side, and the edge of the seating sensor, particularly the front part, is inadvertently covered during the process of covering the pad body with the pad body or when using the seat cushion pad. It is an object of the present invention to prevent the performance of the seating sensor from being deteriorated by preventing the occurrence of the problem.

  The seat cushion pad with a seating sensor of the present invention includes a pad body made of a foam having elasticity, and a flexible seating sensor provided on the surface of the pad body, and the pad body has a linear shape. In a cushion pad with a seating sensor in which an edge of the seating sensor is coupled to a pad body by locking a locking member made of a material and locking a fixture to the locked member, the locked member Comprises a pair of left and right vertical line parts and a middle line part located between the vertical line parts, and the left and right edges of the seating sensor are connected to the vertical line parts via a fixture. The middle line-shaped portion is provided with a first locked portion in the left-right direction and a second locked portion parallel to the first locked portion, and the fixture is attached to the tip. A pair of leg portions having hook portions and a connecting portion for connecting both leg portions; The one hook portion is locked to the first locked portion, and the other hook portion is locked to the second locked portion so that both leg portions straddle part of the front edge portion of the seating sensor. It is to be done.

  In the seat cushion pad with a seating sensor of the present invention, the one hook portion is locked to the first locked portion so that both leg portions straddle part of the front edge portion of the seating sensor, and the other hook Since the portion is locked to the second locked portion, the front edge portion of the seating sensor can be firmly connected to the pad main body. In addition, compared with the conventional bar-shaped clip, the operator can easily grasp the fixing tool, and has an advantage that the work can be performed quickly.

  In addition, a groove extending in the front-rear direction is provided on the surface of the pad body, and the locked member is embedded in the groove intermittently exposed along the groove, and the hook of the fixing tool is embedded in the exposed portion. The part is locked.

  It is preferable that the to-be-latched member has a structure in which an outer skin covered with a pad body is connected via a fixture.

  In the seating sensor mounting structure of the present invention, a locked member made of a linear material is embedded in a pad body made of a foam having elasticity, and a fixing member is locked to the locked member. In the seating sensor mounting structure in which the edge of the seating sensor provided on the surface of the pad main body is connected to the pad main body, the locked member includes the first locked portion and the first locked portion in parallel. A second locked portion, and the fixture includes a pair of leg portions each having a hook portion at a distal end thereof, and a connecting portion that connects the both leg portions, and the both leg portions are provided at the edge of the seating sensor. The one hook portion is locked to the first locked portion and the other hook portion is locked to the second locked portion so as to straddle a part.

  In the fixing device according to the present invention, the front edge portion of the seating sensor can be firmly connected to the pad body. In addition, the fixture having such a configuration has an advantage that the operator can easily grasp the work and can quickly perform the work, as compared with the conventional bar-shaped clip.

  According to the present invention, the edge of the seating sensor can be firmly connected to the pad main body, and the end (edge) of the seating sensor can be prevented from being inadvertently rolled.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a seat cushion pad used in an automobile seat according to an embodiment. As shown in FIGS. 1 to 4, the seat cushion pad 1 includes a seat portion 2 in the center in the width direction (left and right direction, E direction shown in FIG. 2), and a side formed in a raised shape on both the left and right sides. Parts 4 and 4. In FIG. 2, the arrow F direction indicates the front, the arrow L direction indicates the left direction, and the arrow R direction indicates the right direction.

  The seat cushion pad 1 is composed of a pad main body 10 made of a synthetic resin foam molded body having elasticity such as a flexible polyurethane foam, and a reinforcing cloth 12 integrated over substantially the entire lower surface of the pad main body 10. . The reinforcing cloth 12 is provided to reinforce the lower surface of the pad in contact with the seat frame 3 and prevent the generation of abnormal noise. The reinforcing cloth 12 is made of coarse blanket, felt, non-woven fabric, etc., and is integrally foam-molded with the pad main body 10. ing.

  A plurality of grooves are provided on the upper surface of the pad body 10. This groove includes a pair of left and right vertical grooves 15, 15 extending in the front-rear direction (D direction shown in FIG. 2) along the boundary between the seat portion 2 and the side portion 4, and the rear ends of the left and right vertical grooves 15, 15. , A front horizontal groove 17 that connects the front sides of the left and right vertical grooves 15, 15, and a middle vertical groove 18 that connects the rear horizontal groove 16 and the middle portion of the front horizontal groove 17. The front lateral groove 17 divides the seat portion 2 into the front and rear, the front side of the front lateral groove 17 receives and supports the thigh of the seated person, and the rear side of the front side groove 17 receives and supports the seated person's buttocks. It is a receiving part 2B.

  The pad main body 10 is provided with locking wires 20, 21, 22 as locked members made of a rigid linear body such as metal along each groove. As shown in FIG. 5, the locking wire 20 has a pair of left and right vertical linear portions 20 </ b> A extending in the front-rear direction from the front end of the pad to the rear end along the left and right vertical grooves 15, 15, and the rear horizontal groove 16. A rear horizontal linear portion 20B extending in the left-right direction connecting the rear ends of the pair of vertical linear portions 20A and 20A so as to be along.

  The locking wire 21 is a front horizontal line portion positioned between the pair of vertical line portions 20A and 20A along the front horizontal groove 17. The locking wire 22 is a middle line portion positioned between the front horizontal line portion 21 and the rear horizontal line portion 20B along the middle vertical groove 18. The front portion of the locking wire 22 includes an inclined portion 22A that is bent in one of the left and right directions (right direction), and a first locked portion that is bent from the inclined portion 22A to the other side and in the horizontal direction (left direction). 22B, a connecting portion 22C bent forward from the first locked portion 22B, and a second locked portion bent rightward from the connecting portion 22C and parallel to the first locked portion 22B in plan view 22D. In other words, the first locked portion 22B and the second locked portion 22D are formed by bending one locking wire 22, respectively.

  Note that the first locked portion 22B and the second locked portion 22D are parallel, of course, when the first locked portion 22B and the second locked portion 22D are parallel, of course, they are somewhat closer or spaced apart. Including the case of tilting or bending. Each of the locking wires 20, 21, and 22 is end-treated by bending each end to be rounded.

  Each of the locking wires 20, 21, and 22 is embedded in a state where it is intermittently exposed at the bottom of each groove and in the longitudinal direction. More specifically, deep bottom portions 15a, 16a, 17a, 18a having deep bottoms are provided at a plurality of locations in the longitudinal direction of each groove, and the locking wires 20, 21, 22 are provided at the deep bottom portions 15a, 16a, 17a, 18a. Are embedded so that a part (exposed part) 20A1, 20B1, 21a, 22a of the part is exposed. As shown in FIG. 4, a first deep bottom portion 18a1 and a second deep bottom portion 18a2 are provided at the front portion of the middle vertical groove 18, and a part of the first locked portion 22B extends from the first deep bottom portion 18a1. A part of the second locked portion 22D is exposed from the second deep bottom portion 18a2. Note that. When the wire is exposed in the groove, it means that a part of the upper surface of the wire is exposed or the entire circumference of the wire is exposed.

  A flexible seating sensor 30 is laid on the upper surface of the buttocks receiving portion 2B. The seating sensor 30 is composed of, for example, a plurality of cells printed on a sheet (film) 31 and includes a pressure-sensitive sensor that generates an ON signal when subjected to a pressure or deformation exceeding a predetermined value. The seating sensor 30 is connected to the connector 32 via a signal line printed on the film.

  The left and right edges 30A and 30B of the seating sensor 30 are provided with substantially C-shaped mounting pieces 34 and 34, respectively, and each mounting piece 34 is fixed to the exposed portion 20A1 of the vertical linear portion 20A. Are connected through a C-ring 35. A belt-like opening 37 is formed at the center in the left-right direction of the seating sensor 30 and in the front-rear direction. The opening 37 is formed so as to leave the locked portion (a part of the front edge 30C) 40 at the front edge 30C of the seating sensor 30, and the attachment piece 39a from the edge of the opening 37. 39b are extended. Each attachment piece 39a, 39b is connected to the exposed portion 22a of the middle line portion (locking wire) 22 via a C-ring 36, respectively.

  The locked portion 40 is pressed from above by the fixture 50 toward the pad body 10 side. As shown in FIGS. 6 and 7, the fixture 50 includes a pair of substantially parallel leg portions 52 and 52 each having a hook portion 51 at the tip, and a connecting portion 53 that connects the upper ends of both the leg portions 52 and 52. It is integrally formed of a synthetic resin material or a metal rod. Each hook part 51 and 51 has faced the inner side so that it may mutually oppose, for example.

  Is the interval between the leg portions 52, 52 (the length of the connecting portion 53) L1 equal to the interval L2 outside the first locked portion 22B and the second locked portion 22D as shown in FIG. 7 (a)? , It is preferably set below that.

  Next, the case where the front edge part of the seating sensor 30 is fixed with the fixing tool 50 will be described. First, the locked portion 40 of the seating sensor 30 is placed on the locking portion 41 (the portion between the first deep bottom portion 18a1 and the second deep bottom portion 18a2) of the pad main body 10, and the locked portion 40 is moved. The fixture 50 is pushed in such that the legs 52, 52 straddle. At this time, the inclined surface 51a of each hook portion 51 of the fixture 50 is brought into contact with the first locked portion 22B and the second locked portion 22D of the locking wire 22 and is pushed in, thereby being locked. While sliding the wire 22, the wire 22 is slightly separated and descends (see FIGS. 7A and 7B).

  When the hook portion 51 passes through the first locked portion 22B and the second locked portion 22D, one hook portion 51 is locked to the first locked portion 22B, and the other hook portion 51 is locked. Locks to the second locked portion 22D (see FIG. 7C). As a result, the fixture 50 holds the first locked portion 22B and the second locked portion 22D from the outside in the front-rear direction. At this time, even if the entire periphery of the first locked portion 22B and the second locked portion 22D is not exposed, the pad main body 10 is made of a foamed molded body, so that the hook portions 51 and 51 can be easily attached to the pad main body 10. Can bite into.

  Further, as shown in FIG. 7C, when the hook portions 51 are engaged with the locking wires 22 (the first locked portion 22B and the second locked portion 22D), the connecting portion 53 is connected. The distance L3 between the connecting portion 53 and the locking wire 22 is set so that the locked portion 40 of the seating sensor 30 is pressed against the upper surface of the locking portion 41 from above. Accordingly, since the locking portion 41 urges the fixing tool 50 in a direction to engage the locking wire 22 by the elastic force, the fixing tool 50 is not inadvertently detached from the locking wire 22.

  As shown in FIG. 3, the skin 6 is appropriately connected to the exposed portions of the locking wires 20, 21, 22 via the skin-side wire 7 and the fixture (C-ring) 8, and a series of work steps are performed. Improves. Since both side edge portions and the front edge portion of the seating sensor 30 are firmly connected to the pad main body 10, when the skin 6 is put on the pad main body 10 and the seating sensor 30, the seating sensor 30 (particularly the seating sensor 30). The front edge) is not wrinkled and the skin 6 can be covered quickly and easily. The rear edge portion 30D of the seating sensor 30 connects the rearmost mounting piece 39b to the locking wire 22, and therefore does not bend inadvertently.

  The present invention is not limited to the embodiment described above. For example, the fixture 50 may be as shown in FIG. Specifically, in the fixing device 50 in FIG. 5A, the hook portions 51 and 51 are provided so as to face outward, and the leg portions 52 and 52 are respectively connected to the first locked portion 22B and the second locked portion 22B. The locked portion 22D is pinched from the inside and locked.

  The fixing tool 50 in FIG. 5B is provided so that the leg portions 52 and 52 are inclined (approached).

  In the fixture 50 in FIG. 5C, each leg portion 52 is composed of front and rear leg portions 52a and 52b (four-leg structure). The left and right leg portions 52a and 52b have a predetermined interval, and hook portions 51 and 51 facing each other are provided at the tips. And the guide inclined surface 51a which approaches toward upper direction is formed in the lower surface (tip surface) of each hook part 51,51. Accordingly, when the fixing tool 50 is locked to the first locked portion 22B and the second locked portion 22D, when the fixing tool 50 is pushed in along the locking wire 22, each guide inclined surface 51a. Slides the first locked portion 22B and the second locked portion 22D, slightly separates the front and rear leg portions 52a and 52b against the elastic force, and the first engaged portion between the front and rear leg portions 52a and 52b. Stop part 22B and 2nd to-be-latched part 22D can be fitted, respectively. Thereafter, in order to prevent the hook portions 51 from being detached from the locking wire 22, the fixing tool 50 is not detached, and the fixing tool 50 can be firmly locked to the locking wire 22.

  The front edge portion 30C of the seating sensor 30 is illustrated as being fixed by a single fixing tool 50, but a plurality of fixing tools 50 are arranged at predetermined intervals in the left-right direction, and the plurality of fixing tools 50 are arranged. It is also possible to fix the seating sensor 30. In such a case, the plurality of fixtures 50 are locked to the first locked portion 22B and the second locked portion 22D. Alternatively, a plurality of locking wires 22 are embedded in the pad main body 10.

  Moreover, the fixture 50 is not limited to the front edge 30C of the seating sensor 30, but can also fix the rear edge 30D and the left and right edges 30A and 30B. The seating sensor 30 may be laid on the lower surface other than the upper surface of the pad main body 10. In addition, it is possible to cover the surface of the seating sensor 30 after providing a surface layer portion made of a foam having a lower hardness than the pad main body 10.

It is a disassembled perspective view of the seat cushion pad which concerns on one Embodiment of this invention. It is a top view of the seat cushion pad. It is a cross-sectional side view of the strut mount. It is a top view of the pad main body. It is a top view of the wire for locking embed | buried in the pad main body. (A) The perspective view which shows the principal part just before locking the fixing tool to the locking wire, (b) The perspective view which shows the main part in the state which locked the fixing tool to the locking wire. . (A)-(c) is sectional drawing which each shows the process of latching the fixing tool to the wire for latching. (A)-(c) is a side view which shows the fixing tool which concerns on other embodiment of this invention, respectively. It is a perspective view which shows the cross section of the conventional seat cushion pad.

Explanation of symbols

6 Skin 8 Fixture 10 Pad body 15 Vertical groove (groove)
18 Middle vertical groove (groove)
20 Locked member 20A Vertical line-shaped portion 20A1, 22a Exposed portion 21 Locked member 22 Middle line-shaped portion (locked member)
30 Seating sensors 30A and 30B Edges (edges) on the left and right sides of the seating sensor
30C Front sensor edge (edge)
35 Fixing part 40 Locked part (a part of the front edge part of the seating sensor, a part of the edge part)
50 Fixing tool 51 Hook part 52 Leg part 53 Connecting part 22B First locked part 22D Second locked part D Front-rear direction E Left-right direction

Claims (4)

A pad main body made of a foam having elasticity and a flexible seating sensor provided on the surface of the pad main body, a locked member made of a linear material is embedded in the pad main body, In the cushion pad with a seating sensor for connecting the edge of the seating sensor to the pad body by locking the fixture to the locked member,
The locked member includes a pair of left and right vertical line parts and a middle line part located between the vertical line parts, and the left and right edges of the seating sensor are connected via a fixture. Connected to the vertical line portion, the middle line portion is provided with a first locked portion in the left-right direction and a second locked portion parallel to the first locked portion, and the fixed The tool includes a pair of leg portions having hook portions at the tips, and a connecting portion for connecting both the leg portions, and the one hook portion is arranged such that the both leg portions straddle part of the front edge portion of the seating sensor. A seat cushion pad with a seating sensor, wherein the seat cushion pad is locked to the first locked portion, and the other hook portion is locked to the second locked portion.   A groove extending in the front-rear direction is provided on the surface of the pad body, and the locked member is embedded in the groove intermittently exposed along the groove, and the fixing member is locked to the exposed portion. The seat cushion pad according to claim 1.   The seat cushion pad according to claim 1 or 2, wherein the locked member has a structure in which an outer skin covered with a pad main body is connected via a fixture. A seating sensor provided on the surface of the pad body by embedding a locked member made of a linear material in a pad body made of a foam having elasticity, and locking a fixture to the locked member In the mounting structure of the seating sensor that connects the edge of the pad to the pad body,
The locked member is provided with a first locked portion and a second locked portion parallel to the first locked portion, and the fixture has a pair of legs having a hook portion at the tip. And a connecting portion that connects the both leg portions, the one hook portion being locked to the first locked portion so that the both leg portions straddle part of the edge of the seating sensor, and the other The seating sensor mounting structure is characterized in that a hook portion of the seating sensor is locked to the second locked portion.

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