KR20180066505A - Structure of frame for mounting seat - Google Patents

Abstract

The present invention relates to a structure of a seat mounting frame for mounting a seat in a bus, wherein two frames are arranged side by side in the full width direction, one end of the frame is supported by the leg frame and the other end is coupled to the vehicle body wall surface, A main beam having a sliding groove formed along the main beam, a cushion plate disposed in the longitudinal direction so that the seat can be fastened and seated on the main beam; And a fastening member having one end coupled to the cushion plate and the other end adapted to be positioned in the slide groove, wherein the fastening member is mounted so as to be positioned in the slide groove and then completely fastened to fix the cushion plate to the main beam, And the cushion plate is movable along the slide groove when the member is in the engaged state.
According to the present invention having the above-described structure, the coupling method of the members is changed from welding to bolting, thereby increasing the assemblability and reducing the assembly failure rate. In addition, it is possible to reduce the development investment cost and to shorten the development schedule since it is unnecessary to develop the hole hole and the jig necessary for welding. In addition, in the present invention, since the cushion plate, the main beam and the leg frame can be moved in the full-length direction and / or the full width direction, various sizes of sheets can be mounted and optional components can be added easily.

Description

Structure of frame for mounting seat [0002]

The present invention relates to a structure of a vehicle frame for mounting a seat, and more particularly, to a structure of a vehicle frame for mounting a seat, in which a cushion plate to which a seat is coupled is movable in a full- To a structure of a mounting frame.

A seat of an automobile is a part that is directly connected to the safety of a passenger, and is critically influenced by the strength of a seated seat of a passenger and a frame to which the seats are joined when a collision of a vehicle occurs.

On the other hand, the frame for a passenger seat mounted on the bus is constituted by bonding the respective parts by CO ₂ welding. However, due to the nature of the commercial bus, the passenger seat mounting frame was manually welded to meet various customer requirements.

That is, as shown in Fig. 1, the conventional seat mounting frame is composed of a side plate 3, which is fixed to the vehicle body wall surface and to which one end of the main beam 1 is welded, with the main beam 1 as a basic frame. A cushion plate 2 welded onto the main beam 1 and seating a seat (not shown); A leg frame 4 welded to the lower end of the main beam 1 and other subcomponents such as a seat belt plate (not shown), a footrest (not shown), and the like are added.

The main beam 1 has a steel re-rectangular pipe shape and the sub-parts are welded. However, due to the nature of the square pipe shape, it is difficult to perform hole processing for welding, and there is a possibility that the machined hole will lower the strength. ₂ welding has a high defect rate.

In addition, when welding each component by welding, it is necessary to newly develop a welding jig for welding when the specification or the specification is changed. Therefore, there is a problem such as an increase in investment cost or a delay in the construction. Further, since the structure for assembling the seat itself to the vehicle body is also a welding type, there is a disadvantage in that it is not easy to change the seat position (full width direction) and a separate jig must be used at the time of setting the assembly position (longitudinal direction).

Therefore, the present invention can reduce the occurrence of defects such as welding part breakage due to fatigue endurance by minimizing the welding area (by minimizing the possibility of welding defect), and to improve the passenger seat tuning , A separate storage box, and the like) that can easily be modified (modification of specifications and easy removal of other parts) is provided.

According to an aspect of the present invention, there is provided a seat mounting frame for mounting a seat in a bus, wherein two frames are arranged in parallel to each other in a full width direction, A main beam coupled to a wall of the vehicle body and having a sliding groove formed along a longitudinal direction thereof, a cushion plate disposed on the main beam so as to be paired with each other in the longitudinal direction so that the seat can be engaged, And a fastening member having one end coupled to the cushion plate and the other end adapted to be positioned in the slide groove, wherein the fastening member is mounted so as to be positioned in the slide groove and then completely fastened to fix the cushion plate to the main beam, And the cushion plate is movable along the slide groove when the member is in the engaged state.

In the present invention, the fastening member is a bolt, and the fastening member is engaged with the nut, and the head portion of the bolt is inserted into the slide groove.

In addition, the main beam is separated from the slide groove to form a second slide groove along the length direction, and the second bolt is coupled to the leg frame as a fastening member. The second bolt is also mounted so that the head portion is located in the second slide groove, and then the first and second bolts are fully engaged to fix the leg frame and the main beam. When the second bolt is in the fastened state, It is movable.

The leg frame is disposed parallel to the longitudinal direction, and at least two holes through which the second bolt can be engaged are perforated along the longitudinal direction.

In the embodiment of the present invention, a mounting rail is fixedly mounted on the wall of the vehicle body, and a mounting jaw fixed to the mounting rail is fastened to the main beam. The mounting rails are disposed in the longitudinal direction, and a plurality of fixing holes are formed along the longitudinal direction, and the mounting jaws are coupled to a part of the plurality of fixing holes.

 The mounting jaw includes a jaw upper having a plurality of upper jaws protruding downward at one end and an inner end entering the second slide hole at one end, a jaw upper having a plurality of lower jaws protruding upward at one end, Jorowar entering; And a third bolt for engaging the jaw upper and jawr so that the upper jaw and lower jaws are engaged with the main beam when the jaws are fitted above and below the fixing holes.

In addition, the protrusion protrudes from the main beam at a portion where the jaw upper and jawerer come into contact with each other, and plastic deformation of the protrusion occurs when the jaw upper and jawer are engaged.

According to the present invention having the above-described structure, the coupling method of the members is changed from welding to bolting, thereby increasing the assemblability and reducing the assembly failure rate. In addition, it is possible to reduce the development investment cost and to shorten the development schedule since it is unnecessary to develop the hole hole and the jig necessary for welding.

Further, in the present invention, each of the cushion plate, the main beam and the leg frame can be moved in the full-length direction and / or the full width direction, so that sheets of various sizes can be mounted. As a result, it is possible not only to supply products according to various demands of customers but also to assemble by bolting, which is advantageous for selecting the work posture and position of the worker than the welding work, and can reduce the working time.

1 is a view showing a disassembled state of a conventional seat mounting frame,
2 is a view showing a state in which a seat mounting frame according to a preferred embodiment of the present invention is engaged,
FIG. 3 is a view showing a state in which the leg frame and the cushion plate move in the full width direction in the frame of FIG. 2;
FIG. 4 is a cross-sectional view of the AA portion of FIG. 3,
5 shows the end of the main beam fastened to the mounting rail through the mounting jaws,
FIG. 6 is a view showing a disassembled view of the mounting jaws of FIG. 5,
7 is a view showing a mounting jaw extending from a main beam,
8 is a view sequentially showing the assembled state of the seat mounting frame according to the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that the present invention can be easily carried out by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor should properly define the concept of the term to describe its invention in the best way. It should be construed as meaning and concept consistent with the technical idea of the present invention.

The present invention relates to a structure of a seat mounting frame for mounting a seat of a passenger in a commercial bus so that adjustment of the mounting position can be easily adjusted so as to mount a seat of various sizes The present invention is characterized in that the optional parts can be easily attached and detached through bolting in a groove. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

2 and 3, the present invention is characterized in that one side of the main beam 10 is connected to a mounting rail 50 fixed to the vehicle body wall surface and the other side is configured to be supported on the leg frame 30 and the cushion plate 20 The main beam 10 is slidable in the full width direction (longitudinal direction of the vehicle body) and longitudinal direction (longitudinal direction of the vehicle body) when the main beam 10 is fastened, and can be fixed when the position is determined.

Referring to FIG. 1, the main beams 10 are arranged in parallel with each other in the full width direction. One end of the main beam 10 is supported by the leg frame 30 and the other end is supported by the mounting rail 50 . The main beam 10 has a sliding groove 11 formed on its upper surface and a second sliding groove 12 formed on a lower surface thereof along the longitudinal direction thereof (see FIG. 6).

The cushion plate 20 is seated on the main beam 10 so that the cushion plate 20 is paired with two pairs in the longitudinal direction so that a seat (not shown) can be fastened , Two pairs of cushion plates are shown seated in Figures 2 and 3).

The cushion plate 20 is fastened to the main beam 10 through a fastening member used as a bolt 60 in the present invention. The bolt 60 used as the fastening member is selectively engaged with the chuck 70 such that the head portion 60a is inserted into the slide groove in a state where the nut 61 is less tightened or separated from the nut 61 (See Fig. 4). For reference, the chuck 70 can reduce the kinetic frictional force between the bolts and the main beam 10 when coupled with the bolts 60 and the second bolts 71, and can prevent rotation when tightening the nuts .

Therefore, when the nut 61 is in a less tightened state (fastened state), the cushion plate 20 is movable along the sliding groove 11. When the nut 61 is in a fully tightened state (fully fastened state) The cushion plate 20 is fixed at a specific position of the main beam 10.

A second slide groove 12 is formed along the longitudinal direction on the lower surface of the main beam 10. A second bolt 71 coupled to the chuck 70 is also inserted into the second slide groove 12 Respectively. The second bolt 71 located in the second slide groove 12 is also fully engaged to fix the leg frame 30 and the main beam 10. When the second bolt 71 is in the engaged state The leg frame (30) is movable along the second slide groove (12).

The leg frame 30 is disposed parallel to the longitudinal direction, but at least two holes through which the second bolt 71 coupled with the chuck 70 can be inserted are punctured along the longitudinal direction as in the conventional structure Reference numeral 5 in Fig. 1).

Therefore, the main beam 10 may be moved in the longitudinal direction according to the fastening position of the second bolt 71, and then fixed.

A mounting rail 50 is fixedly mounted on the wall of the vehicle body and a mounting jaw 40 is fixed to the mounting rail 50 at the end of the main beam 10 (opposite to the direction in which the leg frame is mounted) Is fastened as shown in Fig.

The mounting rails 50 are arranged in the longitudinal direction (i.e., perpendicular to the main beam), and a plurality of fixing holes 51 are formed along the longitudinal direction, And is fastened to a part of the fixing holes 51.

The mounting jaws 40 according to the preferred embodiment of the present invention may include a jaw upper 41, jaws 43, a third bolt 45, a nut 47, And a second chuck 46 providing the same function as the first chuck 70.

One end of the jaw upper 41 has a relatively wide width and a plurality of upper teeth 42 protrude downward and the other end enters the second slide hole 12. The lower jaws 43 are also configured such that a plurality of lower jaws 44 protrude upward and the other end enters the outer side of the second slide hole 12. The third bolt 45 and the nut 47 are engaged with the main beam 10 when the upper engagement teeth 42 and the lower engagement teeth 44 are fitted above and below the fixing holes 51 Jo joins Upper (41) and Jorrow (43). At this time, the second chuck 46 is coupled with the third bolt 45 to increase the fastening force of the third bolt 45 and the nut 47 and to assist the slide of the jaw upper 41 and jaw- But can be selectively mounted as needed.

In addition, in the present invention, the protrusion 13 protrudes from the main beam 10 at a portion where the jaw upper 41 and the jawler 43 abut. The protrusion 13 is pressed and plastically deformed when the jaw upper 41 and the jawler 43 are engaged to increase the fastening force between the third bolt 45 and the nut 47. [

When the jaw upper 41 and the jawler 43 are fastened by the third bolt 45, when the fastener is fastened, it is possible to slide as shown in FIG. 7. When the sliding position is determined, (45) and the nut (47).

The sheet mounting frame according to the present invention having the above-described structure is assembled in the order shown in FIG.

Two main beams 10 are arranged side by side and the chuck 70 and the bolts 60 and 71 are engaged to insert the main beam 10 into the slide grooves 11 and the second slide grooves 12, do. Then, after the cushion plate 20 is seated, the nut 61_ is fastened and then the leg frame 30 is fastened.

When the assembly is completed, move the assembly with the assembly inside the bus to join the mounting jaws 40. At this time, for the convenience of assembly, the cushion plate 20 and the leg frame 30 can be moved in a state where they are fastened together. When the mounting jaws 40 are fastened to the mounting rails 50 mounted on the vehicle body, the final positions of the respective parts are adjusted and the assembling is completed by tightening the respective nuts 61, 47 completely.

According to the present invention having the above-described configuration, the coupling method of the members is changed from welding to bolting, thereby increasing the assemblability and lowering the assembly defect rate.

In addition, since it is unnecessary to develop a hole hole and a welding jig necessary for welding, the development investment cost can be reduced and the development schedule can be shortened.

In the present invention, since the cushion plate 20, the main beam 10 and the leg frame 30 can be moved in the full-length direction and / or the full width direction, various sizes of sheets can be mounted. It is easy. As a result, it is possible not only to supply products according to various demands of customers but also to assemble by bolting, which is advantageous for selecting the work posture and position of the worker than the welding work, and can reduce the working time.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be apparent to those of ordinary skill in the art.

10: Main beam
11: Slide groove
12: second slide groove
13: protrusion
20: Cushion plate
30: Leg frame
40: Mounting.
50: Mounting rail

Claims (8)

A structure of a seat mounting frame for mounting a seat in a bus,
A main beam having two ends arranged in parallel with each other in a full width direction, one end of the main beam being supported by the leg frame and the other end being coupled to a wall of the vehicle body,
A cushion plate disposed in the longitudinal direction so that the sheet can be fastened and seated on the main beam; And
And a fastening member, one end of which is engaged with the cushion plate and the other end is fitted into the slide groove,
Wherein the fastening member is mounted so as to be positioned in the slide groove and then completely fastened to fix the cushion plate to the main beam, and when the fastening member is in the fastened state, the cushion plate is movable along the slide groove. .
The structure of claim 1, wherein the fastening member is a bolt, and the fastening member is engaged with the nut, and the head portion of the bolt is inserted into the slide groove.
[3] The apparatus of claim 2, wherein the main beam is spaced apart from the slide groove to form a second slide groove along the length direction, and a second bolt is coupled to the leg frame,
The second bolt is mounted to be positioned in the second slide groove, and then the first bolt is fixed to the first frame, and the leg frame is fixed to the main beam. When the second bolt is in the engaged state, Wherein the frame is formed of a sheet.
4. The structure of claim 3, wherein the leg frame is disposed parallel to the longitudinal direction, and at least two holes through which the second bolt is coupled are perforated along the longitudinal direction.
4. The structure of claim 3, wherein a mounting rail is fixedly mounted on the wall of the vehicle body, and a mounting jaw fixed to the mounting rail is fastened to the main beam.
6. The seat mounting frame according to claim 5, wherein the mounting rails are arranged in the longitudinal direction, and a plurality of fixing holes are formed along the longitudinal direction, and the mounting jaws are fastened to a part of the plurality of fixing holes. Structure.
7. The apparatus of claim 6,
A jaw upper having a plurality of upper jaws protruding downward at one end and entering the inner side of the second slide hole at the other end;
A plurality of lower jaws protruding upward at one end and an outward end of the jaws entering the second slide hole; And
And a third bolt for joining the jaw upper and jawlow so that the upper jaw and lower jaws are engaged with the main beam when the jaws are fitted above and below the fixing holes.
8. The sheet mounting frame according to claim 7, wherein a projecting portion is protruded from the main beam at a portion where the jaw upper abuts against the jaw lower portion, and a plastic deformation of the projecting portion is achieved when the jaw upper and jaw- Structure.

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