JP2973112B2 - Chair armrest device and chair provided with the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armrest device for a chair and a chair provided with the same, which can adjust the position of the armrest in the left-right direction with respect to the seat in accordance with the body type and work content of the occupant. About.

[0002]

2. Description of the Related Art In order to adjust the position of the arm depending on the body shape of the occupant and the position of the arm support when operating the keyboard and mouse of a personal computer, the position of the armrest in the left and right direction can be adjusted. Such chairs are disclosed in, for example, Japanese Utility Model Publication No. 4-751 and Japanese Utility Model Publication No. 3-109556.

[0003]

[0004]

[0008] The present invention, as described above
An object of the present invention is to provide an armrest device for a chair and a chair including the same , in which the position of the armrest in the left-right direction can be more easily adjusted with respect to a conventional chair .

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) On the top of the armrest support standing on the left and right sides of the seat,
An elbow rest supporting member that faces in the front-rear direction is attached, and an elbow rest having a surface portion that slides on the upper surface of the elbow rest supporting member has a lateral width wider than the left and right width of the elbow rest supporting member. An elbow pad mounting member that has a surface portion that covers the member from above and slides against the lower surfaces of the front and rear ends of the elbow pad supporting member and has a lateral width wider than the left and right width of the elbow pad supporting member; The elbow pad is attached to the lower surface of the elbow rest so as to be movable in the left-right direction and not movable in the up-down direction with respect to the elbow rest supporting member. Locking means for locking the elbow pad at an arbitrary position in the horizontal direction.

(2) In the above item (1), the armrest attaching member is formed by a lower cover fixed to the lower surface of the armrest and covering the front and rear ends and both sides of the lower surface of the armrest.

(3) In the above item (1) or (2), the locking means may include an elbow pad or an elbow pad mounting member, and a corrugated surface provided on one of sliding surfaces of the elbow pad support member. And a projection provided on the other side and engaging with the corrugated surface.

(4) In the above item (3), the projection is provided on an elastically deformable member attached to the elbow rest support member, and the elbow rest is pushed right and left, whereby the projection is formed on the corrugated surface. The elbow rest can move in the left-right direction over the unevenness of

(5) The armrest device according to any one of (1) to (4) is provided on a chair.

[0010]

FIG. 1 is a front view of a chair (A) provided with a first embodiment of an armrest apparatus of the present invention. Armrest supports (2) are provided on both left and right sides of a seat body (1). ) Is erected. An armrest (3) is attached to the top of the armrest support (2).

2 to 8 show the first embodiment in detail. FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a line III-III of FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. As is apparent from these figures, a plate-like armrest support member (4) is provided on the horizontal top of the armrest support (2) at both front and rear ends (4a).
(4b) is attached so as to protrude from both front and rear ends of the armrest support (2).

An elastically deformable member (6) made of synthetic resin shown in FIG. 6 is inserted into these front and rear end portions (4a) and (4b).

The elastically deformable member (6) has elastic portions (6a) and (6b) extending in a semi-circular shape whose leading end portions are fitted in a semicircular shape with a gap left in the middle, and a round protrusion is provided on the upper part.
(7). The end (4a) or (4b) of the support member (4) is inserted into a slot (see FIG. 2) provided on the rear surface (the front surface is provided on the rear surface) of the elastically deformable member (6). Is done.

As shown in FIGS. 3 and 4, the armrest support member (4) is relatively narrow as wide as the armrest post (2). A lower cover (5) is fitted with an armrest (3) from above the armrest support member (4) and covers the front and rear ends and both sides of the lower surface of the armrest (3) from below.
The front end of the lower cover (5) is hooked at the front end of the elbow pad (3), and the rear end of the lower cover (5) is attached to the elbow pad (3) by a vertical pin (8).

On the back of the elbow pad (3), at the center,
A surface portion that comes into sliding contact with the upper surface of the elbow support member (4)
With the exception of (9), a fitting groove (10) is formed in which the left-right width is considerably wider than the left-right width of the elbow support member (4). As shown in FIG. 3, the fitting groove (10) has an elongated rectangular shape in plan view.

The lower cover (5) has a surface portion which is in sliding contact with the lower surface of the front and rear ends of the elbow support member (4), and has a lateral width wider than the lateral width of the elbow support member (4). By being fixed to the lower surface of the elbow rest (3) as described above, the elbow rest (3) can be moved in the left-right direction with respect to the elbow rest support member (4), but can be moved in the vertical direction. It has a function as an elbow pad attachment member that is attached as impossible.

As shown in FIGS. 2 and 3, an operating means (12) urged downward by a coil spring (11) is provided on the back surface near the front and rear ends of the armrest (3). . Operation means
(12) is an operation button (12a) that is exposed downward through the lower cover (5), and a member that can be elastically deformed by the operation button (12a).
(6) provided on the lower surface of a portion extending upward, and
(7) and a corrugated surface (13) in the left-right direction that can be engaged (see FIG. 4). A locking means is formed by the projection (7) and the corrugated surface (13).

In the state shown in FIG. 2, the projection (7) and the corrugated surface (1)
3) is engaged, and the armrest (3) is locked to the armrest support member (4). As shown in FIG. 5, the operation button (12a)
When the projection is pushed upward to disengage the projection (7) from the corrugated surface (13) (see also FIG. 7), the entire elbow rest (3) is moved to the elastic portion (6a) of the elastically deformable member (6). ) It can be moved to the left and right position against the force of (6b). This limit is, of course, the corner of the end of the armrest support member, or an elastically deformable member.
Until (6) comes into contact with the inner wall on the side of the fitting groove (10) of the armrest (3).

FIG. 8 shows a state in which the front end of the elbow rest (3) has been moved in the left-right direction.
(3) The rear end can also be moved in the left-right direction. In any case, when the pressing of the operation button (12) is stopped, the locking means is locked again at the left and right positions by the locking means.

FIGS. 9 to 14 show a second embodiment of the present invention. The same or similar parts as those in the first embodiment are denoted by the same reference numerals and detailed description thereof will be omitted. Omitted.

In this embodiment, the elastic portion (14a)
Elastically deformable member made of synthetic resin comprising (14b) (14)
As shown in FIG. 12, the lower part has two front-rear cutouts (15) from the rear part to the front part, and has a downwardly directed projection (7) in the middle. .

On the other hand, the lower cover (5) of the armrest attached to the armrest (3) is connected to the end (4a) or (4) of the armrest attachment member (4).
As shown in FIG. 11, a corrugated surface (13) extending in the left-right direction is formed on the upper surface of the portion facing b).

Normally, as shown in FIG. 9, the lower projection (7) of the elastically deformable member (14) is provided with an elbow rest lower cover (5).
And the elbow pad (3) is locked.

However, when the end of the elbow rest (3) is grasped and pressed in the left-right direction, the projection (7) of the elastic member (14) is assisted by the presence of the cutout (15). The elbow rest (3) can be moved in the left-right direction by overcoming the unevenness of the corrugated surface (13) as shown in FIG. In this manner, as shown in FIG.
Can be moved to any left and right position.

[0025]

According to the first aspect of the present invention, the body of a seated person
The position of the elbow rest in the left-right direction can be easily adjusted according to the type and work content . In addition, it is possible to prevent the elbow rest from moving in the left-right direction unnecessarily by the locking means.

[0026]

According to the third aspect of the present invention, the projection is engaged with the concave portion of the corrugated surface, so that the elbow pad can be locked at an arbitrary position in the left-right direction.

According to the fourth aspect of the present invention, the end of the elbow rest
Part by pressing it to the left and right,
Overcome the irregularities on the wavy surface and place the elbow rest in any position
Can be moved to a location.

[0029]

[Brief description of the drawings]

FIG. 1 is a front view of a chair provided with a first embodiment of the armrest device of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 shows the section V of FIG. 2 in different operating states.

FIG. 6 is an enlarged perspective view of an elastic member.

FIG. 7 is a view similar to FIG. 4, but showing a different operating state;

FIG. 8 is a view similar to FIG. 3 showing different operating states;

FIG. 9 is a sectional view similar to FIG. 2, showing a second embodiment of the present invention.

FIG. 10 is a sectional view taken along line XX of FIG. 10;

FIG. 11 is a sectional view taken along the line XI-XI in FIG. 10;

FIG. 12 is an enlarged perspective view of an elastic member according to the second embodiment.

FIG. 13 is a view similar to FIG. 11 showing a different operating state;

FIG. 14 is a view similar to FIG. 10 showing a different operating state;

[Explanation of symbols]

 (A) Chair (1) Seat (2) Armrest support (3) Elbow rest (4) Elbow rest support member (4a) (4b) End (5) Lower cover (elbow rest attachment member) (6) Elastic deformation Possible members (6a) (6b) Elastic part (7) Projection (8) Vertical pin (9) Surface part (10) Fitting groove (11) Coil spring (12) Operating means (12a) Operating button (13) Waveform Surface (14) Elastically deformable member (14a) (14b) Elastic part (15) Notch

Claims (5)

(57) [Claims] 1. An armrest support member facing in the front-rear direction is attached to the top of an armrest support column erected on both left and right sides of a seat body, and has a surface portion that slides on the upper surface of the armrest support member. An elbow pad having a width in the left-right direction that is larger than the left-right width of the elbow support member is placed on the elbow support member from above, and has a surface portion that slides on the lower surface of the front and rear ends of the elbow support member; By fixing an elbow pad mounting member having a width larger than the left and right width of the elbow pad support member to the lower surface of the elbow pad, the elbow pad can be moved in the left-right direction with respect to the elbow pad support member, and can be moved in the vertical direction. The armrest is attached as impossible, and a locking means for locking the armrest at an arbitrary moving position in the left-right direction is provided on a sliding contact surface between the armrest or the armrest mounting member and the armrest support member. Characteristic armrest device for chair. 2. The armrest device for a chair according to claim 1, wherein the armrest attaching member is formed by a lower cover fixed to a lower surface of the armrest and covering front and rear ends and both side portions of the lower surface of the armrest. 3. A corrugated surface provided on one of an elbow pad or an elbow pad mounting member and a sliding contact surface with the elbow pad support member, and a locking means provided on the other. 3. The armrest device for a chair according to claim 1, further comprising an engaging projection. 4. A projection is provided on an elastically deformable member attached to the elbow support member, and the projection is pushed over the elbow support in the left-right direction so that the projection rides over the unevenness of the corrugated surface, thereby providing an elbow support. 4. The device according to claim 3, wherein the device can move in the left-right direction.
An armrest device for a chair as described. 5. A chair provided with the armrest device according to claim 1.