JPH05317139A - Mounting apparatus for arm rest - Google Patents

Abstract

PURPOSE:To mount an arm rest firmly with a simple construction and by a method of facilitating assembling. CONSTITUTION:A seat 1 comprises a sitting seat and a back rest seat 3 almost the same in width. An arm rest 4 is provided at a side position of the sitting seat 2. The arm rest 4 is mounted sticking out ahead of a mounting lateral rotating shaft 13 projecting sideways from the back rest seat 3 while being erected turning in an arc on the tip side thereof 13 all with the mounting lateral rotating shaft 13. The arm rest is also turned and inserted into a housing recessed part 25 formed in the back rest seat 3 from the upright position with an orthogonal shaft 15 which is inserted at the right angle through the tip part of the lateral shaft 13 to be turned all with the lateral shaft 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable armrest mounting device.

[0002]

2. Description of the Related Art In the publicly known Japanese Utility Model Laid-Open No. 58-173361, a substantially horizontal use state and a backrest seat of a backrest seat are provided at a side position of a seat consisting of a seat and a backrest seat having substantially the same width. This document describes an armrest attachment device in which an armrest is provided so as to be displaceable between an upright state in which the armrest is erected in parallel to a side portion and a stored state in a storage recess formed in a side portion of the backrest seat.

[0003]

The structure of the above-mentioned known example of the armless structure is such that the substantially horizontal condition of use is maintained by sandwiching the base side of the mounting metal plate of the base part on the armless side with a leaf spring provided on the seat side. Despite the complicated and expensive structure, it is not supported so strongly against the lateral shake. However, if the two shafts are skillfully used, the armless and the armless can be firmly attached with a simple structure.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to firmly attach an armrest with a simple structure and a method that is easy to assemble.

[0005]

Therefore, according to the present invention, a seat 1 including a seat 2 and a backrest 3 having substantially the same width is provided.
And an armrest 4 provided at a side position of the seat 2 and the armrest 4 includes the backrest seat 3
Is mounted so as to project laterally from the mounting rotation horizontal shaft 13, and the distal end side of the mounting rotation horizontal shaft 13 is rotated in an arc shape to stand upright. A mounting device for an armrest mounted so as to be swung and stored in a storage recess 25 formed in the backrest seat 3 from an upright state by an orthogonal shaft 15 which is inserted at a right angle and rotates together with the horizontal shaft 13, and On the base side of the armrest 4, a U-shaped steel 8 having an inner width slightly larger than the diameter of the horizontal shaft 13 is fixed in a ┌ shape, and the front side of the horizontal shaft 13 is located inside the base side of the U-shaped steel 8. This is a device for mounting an armrest that is fitted and then axially fixed by the orthogonal shaft 15.

[0006]

Embodiments of the present invention will be described with reference to the drawings.
Is a seat for vehicles or the like, 2 is a seat, 3 is a backrest formed with a width substantially the same as that of the seat 2, and 4 is an armrest positioned so as to project forward to the side of the seat 2. Reference numeral 5 denotes an armrest frame of the armrest 4. The armrest frame 5 is formed in a U-shaped cross section, and a cushion material 6 is attached to the outer periphery as is well known, and the surface of the cushion material 6 is covered by a skin member 7. To coat.

At the base of the armrest frame 5,
The tip of the U-shaped steel 8 in a direction intersecting the length direction of the armrest frame 5 is fixed. The U-shaped steel 8 is cross-sectioned by a mounting plate portion 9 to which the armrest frame 5 is fixed, a facing plate portion 10 parallel to the mounting plate portion 9, and a connecting plate portion 11 connecting the mounting plate portion 9 and the facing plate portion 10. Is formed into a "U" shape. Reference numeral 16 is an opening formed between the mounting plate portion 9 and the counter plate portion 10. An insertion hole 12 is formed in the bases of the mounting plate portion 9 and the counter plate portion 10 so as to penetrate both.

Reference numeral 13 denotes a horizontal axis of attachment rotation formed by a horizontal rod, which is formed to have the same diameter as the inner width of the opening 16, and the tip of the horizontal axis of attachment rotation 13 is orthogonal to the axis 13. Insertion hole 14 is formed, and the opening 16 of the base portion of the U-shaped steel 8 is fitted to the tip of the attachment rotation horizontal shaft 13 to form the attachment rotation horizontal shaft 1
The insertion hole 14 at the tip of 3 and the insertion hole 12 are aligned with each other and the orthogonal shaft 15 is inserted and pivotally mounted, and the U-shaped steel 8 is attached to the rotational horizontal shaft 13 and rotatable about the orthogonal shaft 15 as a center. To install.

Reference numeral 17 denotes a seat frame of the backrest seat 3, and a base portion of a bracket 18 projecting forward is fixed to one of the left and right sides of the seat frame 17, and the bracket 18 has the mounting rotary shaft 13 of the mounting rotary shaft 13 attached thereto. The base is freely pivoted only for rotation. Reference numeral 19 is a flange provided on the mounting rotation horizontal shaft 13, 20 is an engaging projection formed on the bracket 18, and 21 is an engaging projection 20 for holding the armrest in a substantially horizontal use state and a standing storage state. As described above, the rotation restricting member that restricts the rotation of the mounting rotation horizontal shaft 13 and the reference numeral 22 are different diameter portions that fit into the mounting holes 23 of the rotation restricting member 21.

Therefore, a longitudinally long storage recess 25 is formed on the side surface 24 of the backrest seat 3, and the front end of the bracket 18 is made to face the lower part of the storage recess 25 to store the storage recess 25.
The mounting rotation lateral shaft 13 on the tip side of the flange 19 is located in the lower part of the inside, the mounting rotation lateral shaft 13 is rotated to erect the armrest 4, and then the U-shaped steel 8 is attached to the mounting rotation lateral shaft 13. When the armrest 4 is bent, the armrest 4 is stored in the storage recess 25.

The side surface of the mounting rotation lateral shaft 13 in the upright state of the armrest 4 in the direction in which the U-shaped steel 8 rotates is notched to form a circular arc surface 26.
The opposite side of the arcuate surface 26 is formed as a separated cut surface, and is formed as a stopper surface 27 that abuts on the inner surface of the connecting plate portion 11 of the U-shaped steel 8 and stops the rotation of the U-shaped steel 8.

FIG. 11 shows a second embodiment in which the outer surface of the mounting rotating horizontal shaft 13 is formed in a square shape. FIG. 12 shows a third embodiment, in which the connecting plate portion 11 of the U-shaped steel 8 has an arc-shaped cross section. FIG. 13 shows a fourth embodiment, in which the armrest frame 5 is fixed to the connecting plate portion 11 of the U-shaped steel 8. Figure 1
4 and FIG. 15, storage recesses 25 are formed at the front and rear corners of the side portion of the backrest seat 3. 16 and 17 show an embodiment in which a backrest seat 3 is provided by dividing the integral seat 2 and an armrest 4 is provided on each backrest seat 3 (note that the armrests are provided on the outer side portions of the backrest seat 3). 4 may be provided).

[0013]

[Operation] Next, the operation will be described. FIGS. 4 and 7 show the U-shaped steel 8 of the armrest 4 and the mounting rotation horizontal shaft 1 in the retracted state.
3 shows the armrest 4 and the recess 2 for storing the backrest seat 3
When pulled out from FIG. 5, the U-shaped steel 8 rotates outward about the orthogonal axis 15 with respect to the mounting rotation horizontal shaft 13, and the connecting plate portion 11 of the U-shaped steel 8 contacts the front surface of the mounting rotation horizontal shaft 13 and rotates. Stops (FIGS. 2, 5, and 8).

Next, when the upper portion of the armrest 4 in the upright state is rotated forward, the armrest frame 5 of the armrest 4 rotates the U-shaped steel 8, and the U-shaped steel 8 rotates the mounting rotation horizontal shaft 13 to rotate the mounting rotation. Rotation restricting member 21 of shaft 13
When the engaging projection 20 of the bracket 18 is engaged, the rotation of the mounting rotation horizontal shaft 13 is stopped, the armrest 4 is brought into a substantially horizontal state, and the rotation restricting member 21 of the mounting rotation horizontal shaft 13 and the engagement projection 20 of the bracket 18 are engaged. The tip of the armrest 4 is held at the working height position by engagement with (FIGS. 6 and 9).

At this time, the relationship between the U-shaped steel 8 and the mounting rotating horizontal shaft 13 is that the connecting rotating plate 13 of the U-shaped steel 8 is attached to the mounting rotating horizontal shaft 13 because the mounting rotating horizontal shaft 13 rotates with respect to the bracket 18. It abuts the lower surface, and the tip of U-shaped steel 8 crosses the orthogonal axis 15
It is prevented from rotating downward with respect to the mounting rotation horizontal shaft 13 at the center. Therefore, the upper surface of the armrest 4 is held horizontally when viewed from the front.

Further, the horizontal axis of mounting 13 is mounted on the bracket 18
With the rotation, the axial center direction of the orthogonal shaft 15 becomes the front-rear direction, so that the tip of the armrest 4 does not shake in the left-right direction.

Further, the horizontal mounting shaft 13 is attached to the bracket 18.
Since the mounting plate portion 9 and the counter plate portion 10 of the U-shaped steel 8 are brought into contact with the front surface and the rear surface of the mounting rotation horizontal shaft 13, respectively, by rotating the U-shaped steel 8 against the mounting rotation horizontal shaft 13. On the other hand, it is prevented from swinging back and forth, and the tip of the armrest 4 is also prevented from rattling in the left-right direction (FIGS. 6 and 9).

On the contrary, when the tip of the armrest 4 in a substantially horizontal state of use is lifted upwards, the armrest frame 5 of the armrest 4 rotates the U-shaped steel 8 about the mounting rotation lateral axis 13 and the armrest 4 Then, when the armrest 4 is pushed rearward, the U-shaped steel 8 pivots rearward about the orthogonal axis 15, and the armrest 4 is stored in the storage recess 25 of the backrest seat 3.

As described above, since the orthogonal shaft 15 for moving the armrest 4 from the retracted position to the pulled-out position is mounted on the mounting rotation lateral shaft 13 rotatably provided within the fixed range on the backrest seat 3 side, the armrest 4 is mounted. When 4 is placed in a substantially horizontal use state, the axis of the orthogonal shaft 15 is in the front-rear direction and is displaced substantially horizontally, so that the turning direction of the U-shaped steel 8 can also be displaced. Although it can be rotated upward about 15 and upward about the mounting rotation horizontal shaft 13, it does not move in any other direction and supports the load applied to the armrest 4.

For convenience of explanation, the U-shaped steel 8 and the armrest frame 5 are described as separate members. However, not only can they be integrally formed, but the opposing plate portion 1 of the U-shaped steel 8 is also possible.
0 is not always necessary, and the U-shaped steel 8 and the mounting rotary shaft 13
It suffices that and are pivotally attached by the orthogonal axis 15.

[0021]

The present invention comprises a seat 1 having a seat 2 and a backrest 3 having substantially the same width, and an armrest 4 provided at a side position of the seat 2, the armrest 4 being the back. Mounting rotation horizontal shaft 1 protruding laterally from the seat 3
3 is mounted so as to project to a position forward of 3, and the distal end side of the mounting rotary horizontal shaft 13 is rotated in an arc shape to stand upright, and the horizontal shaft 13 is inserted through the distal end portion of the horizontal shaft 13 at a right angle. An attachment device for an armrest that is attached so as to be rotated and stored in a storage recess 25 formed in the backrest seat 3 from an upright state by an orthogonal shaft 15 that rotates together with the vertical axis 15, and
On the base side of the armrest 4, a U-shaped steel 8 having an inner width slightly larger than the diameter of the horizontal shaft 13 is fixed in a ┌ shape, and the front side of the horizontal shaft 13 is fitted inside the base side of the U-shaped steel 8. Since the armrest mounting device is fixed to the orthogonal shaft 15 after being fitted together, the mounting rotation horizontal shaft 13 rotates with respect to the backrest seat 3, whereby the connecting plate portion 11 of the U-shaped steel 8 is Mounting rotation horizontal axis 1
The tip of the U-shaped steel 8 is prevented from rotating downward with respect to the attachment rotation horizontal shaft 13 about the orthogonal shaft 15, and the upper surface of the armrest 4 is held horizontally when viewed from the front. Further, since the mounting rotation horizontal shaft 13 rotates with respect to the backrest seat 3, the axial center direction of the orthogonal shaft 15 becomes the front-back direction, so that the tip end of the armrest 4 does not shake in the left-right direction. Further, since the mounting rotation horizontal shaft 13 is rotated with respect to the bracket 18, the mounting plate portion 9 and the facing plate portion 10 of the U-shaped steel 8 come into contact with the front surface and the rear surface of the mounting rotation horizontal shaft 13, respectively, and the tip end of the armrest 4 is reached. Also prevents rattling in the left-right direction. Has the effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a seat.

FIG. 2 is a partially cross-sectional plan view with an armrest frame attached.

FIG. 3 is an assembled perspective view.

FIG. 4 is a perspective view of a stored state.

FIG. 5 is a perspective view of a standing state.

FIG. 6 is a perspective view of a use state.

FIG. 7 is a sectional view of the storage state.

FIG. 8 is an operation state diagram in a standing state.

FIG. 9 is an operation state diagram of a use state.

FIG. 10 is a plan view of the sheet.

FIG. 11 is a perspective view of the second embodiment.

FIG. 12 is a perspective view of a third embodiment.

FIG. 13 is a perspective view of a fourth embodiment.

FIG. 14 is a plan view of the fifth embodiment.

FIG. 15 is a plan view of the sixth embodiment.

FIG. 16 is a plan view of the seventh embodiment.

FIG. 17 is a perspective view of the same.

[Explanation of symbols]

1 ... Seat, 2 ... Seat, 3 ... Backrest seat, 4 ... Armrest, 5 ... Armrest frame, 6 ... Cushion material, 7 ... Skin member, 8 ... U-shaped steel, 9 ... Mounting plate part, 10
... Opposing plate part, 11 ... Connecting plate part, 12 ... Insertion hole, 13 ... Mounting rotation horizontal axis, 14 ... Insertion hole, 15 ... Orthogonal axis, 16 ... Opening part, 17 ... Seat frame, 18 ... Bracket, 19 ...
Flange, 20 ... Engaging protrusion, 21 ... Rotation restricting member, 22
... different diameter portion, 23 ... mounting hole, 24 ... side surface, 25 ... storage recessed portion, 26 ... arc surface, 27 ... stopper surface.

Claims (2)

[Claims] 1. A seat 2 and a backrest 3 having substantially the same width.
And a armrest 4 provided at a side position of the seat 2, the armrest 4
Is a mounting rotation lateral shaft 13 that projects laterally from the backrest seat 3.
It is attached so as to protrude further forward, and the tip end side of the attachment rotation horizontal shaft 13 is rotated in an arc shape to stand upright, and is inserted at a right angle into the tip end portion of the horizontal shaft 13 so that the horizontal shaft 13 is attached. An armrest attachment device that is attached so as to be rotated and stored in a storage recess 25 formed in the backrest seat 3 from a standing state by a rotating orthogonal shaft 15. 2. The armrest 4 according to claim 1,
A U-shaped steel 8 having an inner width slightly larger than the diameter of the horizontal shaft 13 is fixed in a ┌ shape on the base side of the, and the front side of the horizontal shaft 13 is fitted inside the base side of the U-shaped steel 8. From the device for mounting an armrest fixed by the orthogonal shaft 15 described above.