JPH0537809Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Field of Application>> The present invention relates to an armrest structure for a vehicle seat such as a two-person seat.

<<Prior Art>> A conventional armrest structure for a vehicle seat of this type is disclosed in Japanese Utility Model Application Publication No. 56-113764. As shown in FIGS. 7 and 8, a pin 55 is attached to a support leg 50 of a folding chair, and the pin 55 is engaged with the lower end of a fitting tube 52 attached to the base of an armrest 51 with a phase shift of 90 degrees. Fitting grooves 53 and 54 are formed, and the fitting tube 52 is fitted to the support leg 50 to rotatably attach the armrest 51 to the support leg 50.
In the storage position 1, the pin 55 is engaged with one of the engagement grooves 53, and when the armrest 51 is rotated and used, the pin 55 is engaged with the other engagement groove 54 and held in that position. It was designed to do so.

<<Problem to be solved by the invention>> However, in the conventional example, a fitting tube 52 is attached to the base of the armrest 51,
In order to adopt a configuration in which the fitting tube 52 is fitted into the support leg 50 and the armrest 51 is rotatably attached to the support leg 50, after the folding chair is assembled, the armrest 51 is attached to the support leg 50 of the folding chair. Moreover, since the fitting tube 52 is used to attach the armrest 51 to the support leg 50, it is difficult to adjust the pressure with which the fitting tube 52 contacts the support leg 50. In addition, the stopper mechanism is composed of a pin 55 provided on the support leg 50 and engagement grooves 53 and 54 in which the pin 55 is engaged. There were problems such as complexity.

The present invention has been developed by focusing on the above-mentioned problems, and its purpose is not only to improve the ease of assembly, but also to enable adjustment of the operating force of the armrest. To provide an armrest structure for a vehicle seat with a simple stopper mechanism.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a support member that supports a seat portion consisting of a seat back and a seat cushion, and is attached to a pivot piece on the base side of the armrest. Align the mounting bracket with the pivot piece of the armrest, fasten the mounting bracket to the armrest with a screw member, rotatably sandwich the support member between both pivot pieces, and attach the support member to the outside of one of the pivot pieces. A stopper protrusion is provided, an armrest holding member is welded to the support member with both pivot pieces sandwiched from above and below, and the armrest retaining member does not interfere with the stopper protrusion when the armrest is in the retracted state; The armrest is configured to include a stopper portion that interferes with the stopper protrusion when the armrest is rotated to be in use.

<<Operation>> With this configuration, when attaching the armrest to the support member, first align the pivot piece on the base side of the armrest and the pivot piece of the mounting bracket with the support member, After tightening the mounting bracket to the armrest with the screws,
Since the armrest holding member is welded to the support member with both pivot pieces sandwiched from above and below, the armrest can be attached even after the vehicle seat has been assembled, improving ease of assembly. Also, by adjusting the tightening force of the screw member, the pressing force of the pivot piece to the support member is adjusted,
The operating force of the armrest can be adjusted, and a stopper protrusion is provided on the outside of the pivot piece.
The armrest holding member does not interfere with the stopper protrusion when the armrest is in the retracted state, but
When the armrest is rotated to be in use, the stopper mechanism becomes simple as a stopper part that interferes with the stopper protrusion is provided.

<<Example>> An example of the present invention will be described below based on FIGS. 1 to 6. FIG. 1 is a perspective view of a vehicle seat equipped with an armrest structure according to the present invention. This vehicle seat includes a support member 1 that stands upright on the floor of a vehicle interior, and left and right support legs 2 of this support member 1 are bent at their intermediate portions, and have an upper portion 2b with respect to a lower portion 2a. is located at the rear. A fulcrum pin 3 is provided above the lower portions 2a of the left and right support legs 2.

The seat portion S consists of a seat cushion 4, a seat bag 5, and left and right brackets 6 that connect these seats 4 and 5. That is, bracket 6
As shown in FIG. 2, it is bent into an L-shape from the front, and a projecting piece 7 is provided on the rear edge 6b of the side surface 6a, and a pin hole 8 is provided in this projecting piece 7. be. Further, a pin hole 9 is provided in the upper part of the side surface portion 6b. Both sides of the rear part of the seat cushion 4 are fixed to the bracket 6, and fulcrum pins 10 provided on both sides of the lower part of the seat bag 5 are inserted into the pin holes 9, so that the seat bag 5 is fixed to the bracket 6. It is attached to.

The seat portion S configured in this manner is attached to the support member 1 by inserting the fulcrum pin 3 into the pin hole 8 of the projecting piece 7 of the left and right brackets 6, and the seat back 5 is attached to the support member 1 using the fulcrum pin 10 as a fulcrum. The seat cushion 4 rotates using the fulcrum pin 3 as a fulcrum, and when the seat cushion 4 is in a horizontal position, the seat cushion 4 is kept horizontal by a stopper mechanism (not shown). Therefore, by stacking the seat bag 5 on the seat cushion 4 and rotating it upward, both the seats 4 and 5 can be stored.

An armrest 11 is attached to the upper part 2b of the left support leg 2 of the support member 1 via an attachment mechanism 13 so as to be horizontally rotatable. It is restricted to a position 90 degrees in front of the position.

That is, the armrest 11 has a semicircular pivot piece 14 at its base end, and two screw holes 1 at the base of the armrest 11.
5 is provided. The mounting bracket 16 has a semicircular pivot piece 17 at its tip, and two screw insertion holes 44 are provided in the surface of the mounting bracket 16. A stopper projection 18 is formed by cutting and raising the end of the pivot piece 17 of the mounting bracket 16. Also,
Reference numeral 19 denotes an armrest holding member, and this armrest holding member 19 has a U-shaped side surface, and the edge portions of the upper and lower bent portions 20, 21 are formed into an arc shape. Further, a notch 22 is formed at the edge of the surface of the armrest holding member 19, and the edge of this notch 22 forms a stopper portion 23.

Then, the pivot piece 14 of the armrest 11 is placed on the support leg 2, and the pivot piece 17 of the mounting bracket 16 is placed on the support leg 2 from the opposite side, and the screw insertion hole of the mounting bracket 16 is inserted. 44, which is a screw member inserted into the armrest 1.
1 into the screw hole 15 and tighten the screw 24, sandwich the support leg 2 between the two pivot pieces 14 and 17, and hold the armrest holding member 19 with both the pivot pieces 14 and 17 sandwiched between them. The armrest holding member 19 is attached to the support leg 2 by welding the upper and lower bent portions 20 and 21 to the support leg 2.

Therefore, vertical movement of the armrest 11 is restricted by the armrest holding member 19, and rotation in the horizontal direction is restricted by the two pivot pieces 14, 17.
It is done in In this case, the stopper projection 18 provided on the pivot piece 17 of the mounting bracket 16 is located within the cutout 22 of the armrest holding member 19. When the armrest 11 is in the retracted state, the stopper protrusion 18 does not interfere with the stopper part 23 even though it is in the notch 22, but when the armrest 11 is rotated 90 degrees and put into use, the stopper protrusion 18 18 interferes with the stopper portion 23, and rotation of more than 90 degrees is restricted.

By adjusting the tightening force of the screw 24, the pressing force of the pivot pieces 14, 17 against the support leg 2 is adjusted, and the operating force of the armrest 11 can be adjusted.

5 and 6 show other embodiments of the present invention, in which the mounting mechanism 13 includes a pair of mounting pieces 25 protruding from the base end side of the armrest 11, an intermediate spacer member 26, and a mounting mechanism 13. It is roughly composed of a bracket 27 and an armrest holding member 28.

That is, bolt insertion holes 29 are formed in the upper and lower portions of the mounting piece portion 25 . Further, the intermediate spacer member 26 includes a spacer portion 30 having a U-shape in plan, and a pivot piece portion 31 having a semicircular plan shape formed at one end of this spacer portion 30. Spacer part 3
0 is provided with an insertion hole 42.

Furthermore, the mounting bracket 27 includes a bracket main body 32 having a U-shape in plan view, and a fitting portion into which the pivot piece portion 31 of the intermediate spacer member 26 is fitted is provided in one half of the curved portion of the bracket main body 32. 33 is formed, the other half is formed as a pivot piece 34, and a transition portion between the fitting portion 33 and the pivot piece 34 is formed as a stopper projection 39. One leg 27a of the bracket main body 32 has an insertion hole 4.
1, the other leg portion 27b is provided with a screw hole 40, respectively.

Further, the armrest holding member 28 includes a holding body 35 having a U-shaped side surface, and the holding body 35 has bent portions 36 and 37 at the top and bottom, and a stopper portion 38 is formed on the surface of the holding body 35. It has been done.

Then, the pivot piece 31 of the intermediate spacer member 26 is applied to the support leg 2, and the intermediate spacer member 2
6 between the mounting pieces 25 of the armrest 11,
Then attach one leg 27 of the mounting bracket 27.
a between one of the mounting pieces 25 and the spacer part 30, and align the other leg part 27b of the mounting bracket 27 along the outer surface side of the other mounting piece 25, and use this mounting bracket 27 to attach the support leg. 2, by fitting the pivot piece 31 of the intermediate spacer member 26 into the fitting part 33 of the mounting bracket 27 and applying the pivot piece 34 of the mounting bracket 27 to the support leg 2. Bolt insertion holes 29, 41, 4
2 and the screw hole 40, and insert the bolt insertion hole 2.
9, 41, 42 and insert the bolt 43 into the screw hole 40.
The support leg 2 is sandwiched between both pivot pieces 31 and 34, and the upper and lower bent parts 36 and 37 of the armrest holding member 28 are screwed together and tightened. This armrest holding member 28 is attached to the support leg 2 by applying it to the support leg 2 and welding it.

Therefore, vertical movement of the armrest 11 is restricted by the armrest holding member 28, and rotation in the horizontal direction is restricted by the two pivot pieces 31, 34.
It is done in In this case, the stopper protrusion 39 provided on the mounting bracket 27 faces the stopper portion 38 of the armrest holding member 28. When the armrest 11 is in the retracted state, the stopper protrusion 39 does not interfere with the stopper part 38, but when the armrest 11 is rotated 90 degrees and put into use, the stopper protrusion 39 interferes with the stopper part 38. Rotation of more than 90 degrees is restricted.

By adjusting the tightening force of the bolt 43, the pressing force of the pivot pieces 31, 34 against the support leg 2 is adjusted, and the operating force of the armrest 11 can be adjusted.

<<Effects of the Invention>> As explained above, the present invention provides a support member that supports a seat portion consisting of a seat back and a seat cushion, with a pivot piece on the base side of the armrest and a pivot piece on the mounting bracket. , tighten the mounting bracket to the armrest with a screw member, and rotatably sandwich the support member between both pivot pieces,
A stopper protrusion is provided on the outside of one pivot piece,
An armrest holding member is welded to the supporting member with both pivot pieces sandwiched from above and below, and the armrest holding member does not interfere with the stopper protrusion when the armrest is in the retracted state, but the armrest can be used by rotating it. Since we have provided a stopper part that interferes with the stopper protrusion when it is in the state, when attaching the armrest to the support member, first attach the pivot piece part and the pivot piece part of the mounting bracket to the base side of the armrest on the support member. After tightening the mounting bracket to the armrest with the screws,
Since the armrest holding member is welded to the support member with both pivot pieces sandwiched from above and below, the armrest can be attached even after the vehicle seat has been assembled, improving ease of assembly. In addition, by adjusting the tightening force of the screw member, the pressing force of the pivot piece to the support leg is adjusted, making it possible to adjust the operating force of the armrest. A stopper protrusion is provided on the armrest holding member, and a stopper part is provided on the armrest holding member that does not interfere with the stopper protrusion when the armrest is in the retracted state, but interferes with the stopper protrusion when the armrest is rotated and put into use. The stopper mechanism becomes simple.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a vehicle seat equipped with an armrest structure according to the present invention, Fig. 2 is an exploded perspective view with a portion of the seat portion omitted, Fig. 3 is a perspective view of the armrest mounting mechanism, and Fig. 4 is FIG. 5 is a perspective view of another embodiment of the armrest attachment mechanism; FIG. 6 is a plan view of the same; FIG. 7 is a perspective view of a vehicle seat with a conventional armrest structure; FIG. 8 is a perspective view of the same armrest attachment mechanism. 1...Support member, 4...Seat cushion, 5
... Seat back, 11 ... Armrest, 1
6, 27...Mounting bracket, 14, 17, 3
1, 34... Pivot piece part, 19, 28... Armrest holding member, 18, 39... Stopper projection,
23, 38...stopper section, S...seat section.

Claims (1)

[Scope of utility model registration request] Align the pivot piece on the base side of the armrest and the pivot piece of the mounting bracket with the support member that supports the seat portion consisting of the seat back and seat cushion, and then tighten the mounting bracket to the armrest with the screw member. The support member is rotatably held between the two pivot pieces, a stopper protrusion is provided on the outside of one of the pivot pieces, and the support member is sandwiched between the two pivot pieces from above and below. Weld the armrest retaining member,
The armrest holding member does not interfere with the stopper protrusion when the armrest is in the retracted state, but
An armrest structure for a vehicle seat, characterized in that a stopper part is provided that interferes with a stopper projection when the armrest is rotated and brought into use.