JPH11321415A - Arm rest device for seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an arm rest tool for seat capable of being easily installed in a seat, capable of securely supporting arms in the case where an occupant use it, and capable of following the movement in the fore and aft direction and the right and left direction. SOLUTION: In this arm rest device to be installed in a seat back of a seat freely to be disconnected, a nearly inverted U-shaped frame main body formed of a lateral frame and two vertical frames 4, 4 is set in the seat, and with the operation of an occupant for seating, a first arm member 6 fitted to a fitting base part is turned in the nearly horizontal direction, and after the seating, the first arm member 6 is returned to the original position. With this structure, the arm rest device can be installed by setting an arm support member under the arms, and a second arm member 17 can be slid in the longitudinal direction of the first arm member 6, and since the arm support member 19 can be turned in the nearly horizontal direction, the occupant can move forward, backward, right and left in the horizontal surface while being supported at a part under the arm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an automobile, a bullet train,
The present invention relates to an armpit support device that is mounted on a seat of a vehicle such as an aircraft and supports an armpit of a seated occupant, and more particularly to a detachable armpit support device for a seat.

[0002]

2. Description of the Related Art Conventionally, as one means for reducing fatigue during long-distance driving or reducing a sitting burden on a driver having low back pain, it has been known to provide an armpit support for supporting the armpit of a seated person in a seat. Have been. For example, Japanese Utility Model Laid-Open No. 5-58071 discloses an underarm support attached to a seat bag. Since this armpit support is built into the seat bag, it is necessary to provide a dedicated seat,
Cannot be installed on existing seats.

In view of this point, Japanese Utility Model Laid-Open No. Sho 60-142658, Japanese Utility Model Laid-Open No. 58-132741, and Japanese Patent Application Laid-Open No. Sho 63-143009 are known as those in which the armpit support is detachable from an existing seat. For example, Japanese Utility Model Laid-Open No. 60-142658 provides a frame corresponding to a seat bag and a seat cushion, and an underarm support is provided on the frame so as to be rotatable in a substantially horizontal direction and adjustable in a vertical direction. .

[0004] Since the underarm support has a frame provided on the seat cushion, there is a possibility that the frame will be in the way when the user sits or leaves the seat. In addition, when the occupant moves back and forth, left and right, the armpit support simply rotates in a substantially horizontal direction, and cannot follow the occupant's front, rear, left and right movements. This is inconvenient and uncomfortable for the occupant wearing the armpit support.
Japanese Utility Model Laid-Open No. 58-132741 has the same problem as described above.

Japanese Unexamined Patent Publication (Kokai) No. 63-143009 discloses an armpit support that can be attached to and detached from a seat bag. The armpit support supports the frame extending from below the seat bag with a universal joint that is rotatable in all directions, so that the armpit support follows the movement of the occupant in all directions. Therefore, the mechanism of the underarm support is complicated, and the underarm support is unstable.

[0006]

The conventional armpit support can be easily mounted on a seat, and there is no one that reliably supports the armpit of a seated person. In particular, there is no one that can be easily mounted on a seat and that can follow the movement of the occupant back and forth and left and right. Therefore, there is a strong demand for an underarm support device that can be easily mounted on a seat, reliably supports the underarm of the occupant, and can follow the occupant's front, rear, left, and right movements.

[0007] The present invention has been made in view of such circumstances, and an object of the present invention is to easily mount it on a seat, and to surely support the seat in the up-down direction even if the occupant wears the armpit. There is a need to provide a seat underarm support that can follow the movement of the occupant in the front-rear and left-right directions. In particular, an armpit support device is provided which supports the armpit of the occupant so as to lift the armpit from below, and which has a combination of rotation and linear motion in a substantially horizontal plane so as to follow up, down, left and right movements.

[0008]

In order to achieve the above object, an invention according to claim 1 is an underarm support device detachably mounted on a seat bag of a seat, the device being hung on an upper portion of the seat bag. A horizontal frame that is formed integrally with the horizontal frame and that hangs on the front surface of the seat bag.
A substantially inverted U-shaped frame body composed of two vertical frames;
A first arm member having a support base portion rotatably attached to the vertical frame so as to be vertically movable, extending in a direction substantially perpendicular to the vertical frame, and being rotatable in a substantially horizontal direction; A second arm member supported on one arm member so as to be slidable in the longitudinal direction of the first arm member; a second arm member supported on an upper portion of the second arm member so as to be rotatable in a substantially horizontal direction, and placed under an armpit of a seated person; And a side support member having a cushion body. In the case of the above configuration, it is possible to reliably support the armpit of the seated person and follow the seated person's front, rear, left and right movements.

According to a second aspect of the present invention, in the first aspect, the support base portion is formed of a cylindrical member that is rotatably and vertically movable with respect to the vertical frame via a bearing. The first arm member is formed so as to extend integrally from the cylindrical member, and the first arm member can be rotatably and vertically movably supported with a simple structure.

According to a third aspect of the present invention, in the first or second aspect, a contact member connected to the vertical frame and in contact with a side portion of a seat bag of a seat is provided. By setting the vertical frame so as to lightly hold the side of the seat bag, the side support members can be pre-positioned near both sides of the seated person.

According to a fourth aspect of the present invention, in the third aspect, an adjusting member for adjusting a vertical position of the vertical frame is provided at a lower end portion of the support base portion, and the contact member is supported by the adjusting member. The vertical position of the vertical frame can be adjusted and the corresponding contact members can be set by the adjusting member.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the first arm member rotatable in a substantially horizontal direction is positioned in a direction substantially perpendicular to a seat bag of a seat. The first arm member rotates in a substantially horizontal direction with the seating operation of the occupant, so that the occupant can smoothly move without the first arm member being in the way. And the first arm member is centered at the original position after sitting, so that the armpit supporting member can be set to a position for supporting the armpit of the seated person.

According to a sixth aspect of the present invention, in the fifth aspect, the corresponding contact member is formed of a deformable contact plate, the first spring member is formed of a rubber band member, and an intermediate portion of the rubber band member. Part is supported by the support base part, and both ends of the rubber band member are set so that the position can be adjusted to an arbitrary position on the plate surface of the corresponding contact plate, and the corresponding contact member is formed into a side portion shape of the seat bag. By adjusting the position of both ends of the rubber band member and setting it at an arbitrary position on the plate surface of the corresponding contact plate, the center arm position of the first arm member is set according to the seated person. Can be set.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the second arm member is forced in the direction of the support base so as to overlap the first arm member. The second spring member and the third spring member for centering the armpit support member in a direction parallel to the second arm member are provided, so that the armpit support member can be easily set under the side of a seated person.

According to an eighth aspect of the present invention, in the seventh aspect, the second spring member and the third spring member are formed of a single rubber band member, and the vertical frame member and the side support member are connected to each other. This is a configuration in which the two spring members are used as one rubber band member.

According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the second arm member has a box-shaped cylinder, and the first arm member is the box-shaped cylinder. A shaft member for connecting the vertical plate members to each other, the roller member being rotatably supported by the upper and lower shaft members; Is rotatably in contact with the guide rails provided on the inner surfaces of the upper and lower walls of the box-shaped cylinder, so that the second arm member can slide smoothly with respect to the first arm member.

According to a tenth aspect of the present invention, in any one of the first to ninth aspects, an interval adjusting mechanism for adjusting an interval between the vertical frames is provided on the horizontal frame. The distance between the vertical frames can be adjusted according to the size of the occupant.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing a case where an embodiment of the underarm support device for a seat of the present invention is set on a seat, and FIG. 2 is a schematic perspective view showing a case where a driver sits on the seat. FIG. 3 is an enlarged side view of a main part of the underarm support device for a seat. FIG. 4 is a partial view showing an attachment structure between the vertical frame and the support base member. FIG. 5 is an enlarged partial view showing a portion for supporting the first arm member and the second arm member.

A substantially inverted U of the underarm support device 1 for a seat according to the present invention.
The horizontal frame 3 of the character-shaped frame body 2 is a seat bag B
Headrest C from the back of headrest C at the top Ba
The vertical frame 4 is hung on the front surface Bb of the seat bag B, and is supported by the contact members 5 along the side portions Bc of the seat bag B. .

The support base portion 7 of the first arm member 6 is formed of a cylindrical member surrounding the vertical frame 4, and is substantially attached to the vertical frame 4 via flanged bearings 8, 8 provided above and below the cylindrical member. It is supported rotatably in the horizontal direction. Washers 10 and upper nuts 9 provided on the upper portions of the flanged bearings 8, 8, and lower nuts 11, 1 provided on the lower portions
1 is screwed into the screw portion 4a of the vertical frame to position the support base 7 in the vertical direction.

As shown in FIGS. 3 and 7, the contact member 5 is formed of a contact plate which can be bent and deformed, and is lightly pressed along the shape of the side portion Bb of the seat bag B.
A cushion sheet 5a is attached to the surface of the contact plate 5 to prevent damage to the seat. The intermediate portion of the rubber band 12 as the first spring member is connected to the cylindrical member 7 of the first arm member 6 by the mounting member 25, and both ends of the rubber band 12 are in a proper position on the back surface of the contact plate 5 with a magic tape. And so on. The centering position of the first arm member 6 is adjusted by arbitrarily selecting the stop position of the rubber band 12 and adjusting both tensions.

The positions where both ends of the rubber band 12 are stopped may be on the front surface or the back surface of the contact plate 5. Instead of the rubber band 12 of the present embodiment, for example, a coil spring is provided between the vertical frame 4 and the cylindrical member 7 so that the first arm member 6
May be centered with respect to the vertical frame 4. The upper part of the contact plate 5 is between the washer 9 of the cylindrical member 7 and the upper nut 10, and the lower part is the lower nut 1 of the cylindrical member 7.
1 and is connected to the vertical frame 4 through the vertical frame 4. The contact plate 5 is connected to the cylindrical member 7 by the above-described upper nut 9 and lower nut 11.
And is connected to the vertical frame 4.

The contact plate 5 is brought into contact with the side portion Bb of the seat bag B, the position where the rubber band 12 is stopped is adjusted, and the contact plate 5 is connected to the cylindrical member 7 by stopping around.
The centering of the first arm member 6 is performed.
That is, the contact plate 5 is positioned in the vertical direction together with the cylindrical member 7, and reduces the load on the seat bag B by the occupant in the seat bag direction via the cylindrical member 7 of the first arm member 6. Soft cushioning.

In this embodiment, the positioning in the vertical direction is performed using the double nut 11. However, the positioning is not limited to the double nut, and another means may be used as long as the positioning in the vertical direction can be performed. As shown in FIGS. 4 and 6, a channel member 14 is attached to the lower part of the two vertical plate members 13 of the first arm member 6 for reinforcement.
A roller body 16 is rotatably mounted on upper and lower shaft members 15 provided on the front side of the vertical plate member 13. A substantially U-shaped guide rail 18 is provided inside the upper and lower wall bodies 17a and 17b of the box-shaped cylindrical body 17, and a part of the roller body 16 fits into the guide rail 18. When the guide rail 18 slidably contacts the roller body 16, the guide rail 18
Is guided in the front-rear direction with the left and right movement restricted, and the second arm member 17 is slidably supported by the first arm member 6.

In the present embodiment, two roller members 16 are provided at each of the upper and lower sides. However, the number of the roller members 16 is not limited to this, and the first arm member 6 and the second arm member 17 are provided.
It is sufficient to provide an appropriate number according to the size of. Further, in this embodiment, the roller body 16 is provided only in the upper and lower portions. However, if the sliding of the left and right surfaces of the vertical plate member 13 of the first arm member 6 and the second arm member 17 is insufficient, the roller members 16 A body may be provided. In this embodiment, the roller body 16 is used as the first arm member 6 and the guide rail 18 is used as the second arm member 17.
However, on the contrary, the roller body 16 is connected to the second arm member 17.
Alternatively, a guide rail 18 may be provided on the first arm member 6. The side support member 19 is formed of a substantially L-shaped plate, and a vertical portion (not shown) of the plate is located on the side of the vertical frame 4 and is substantially connected to the upper wall 17a of the second arm member 17 via the connection member 21. It is supported rotatably in the horizontal direction.

The side support member 19 has a cushion body 20
Having. The vertical portion of the plate is covered with the cushion body 20 and prevents the cushion body 20 from shifting in the front-rear direction. The cushion body 20 swells slightly more on the inside than on the outside, and the center of the cushion body 20 is located slightly inside the center of the side support member 19. As a result, when the occupant actually sits down,
Comes right beside the body, so you can experience the feeling of fitting under the armpits, and even when the occupant moves sideways,
Direct contact with the letter-shaped plate 19 can be prevented. 22
Is a rubber band that also serves as a second spring member that pulls the second arm member 17 in a direction overlapping the first arm member 6 and a third spring member that pushes the side support member 19 in a direction parallel to the second arm member 17. It bridges between the side support member 19 and the vertical frame 4.

In this embodiment, the second spring member and the third spring member are also used as rubber bands, but they may be provided separately. Also, for example, the second spring member may be a spring that extends between the second arm member 17 and the vertical frame 4 or a spring that is provided between the second arm member 17 and the first arm member 6. Further, the third spring member may be a coil spring provided on the connection member 21. This rubber band 22
And the rubber band 12 as the first spring member, for example, connecting the middle of the rubber band to the second arm member 17,
Both ends of the rubber band may be attached to the contact member 5. Reference numeral 23 denotes an interval adjusting member provided on the horizontal frame 3, and the interval W between the vertical frames 4 is adjusted by moving the screw 24 of the interval adjusting member 23 to adjust the interval W.

Next, the operation of this embodiment will be described. After adjusting the interval of the vertical frame 4 by adjusting the screw 24 of the interval adjusting member 23, the horizontal frame 3 is hung on the rear side of the headrest C of the driver's seat, and the vertical frame 4 hangs on the front surface Bb of the seat bag B. Let it. After loosening the upper nut 10 and the lower nut 11 and moving the cylindrical member 7 up and down together with the jaw bearing 8 to adjust the height position, the contact member 5 of the contact member is attached to the side portion Bc of the seat bag B. It is deformed into a shape that fits and pressed. Then the upper and lower nuts 10, 11 are tightened.

If the centering position of the first arm member 6 does not fit the occupant, the mounting positions of both ends of the rubber band 12 are readjusted, and the centering position of the first arm member 6 is reset. Thereby, the underarm support device 1 for a seat can be set to the seat A, and can be easily attached. When the driver enters the seat A from the side to sit on the seat A, the driver does not need to move the first arm member 6 such as retreating, and the first arm member 6 rotates substantially horizontally as the seating operation is performed. Therefore, the occupant can smoothly sit on the seat A without being hindered by the first arm member 6.

When the driver is seated, the first arm member 6 is centered at the original position substantially perpendicular to the seat bag. Therefore, the armpit supporting member 19 is located near the driver's armpit, and There is no need to move the armpit support member 19 to the vicinity of the armpit. Therefore, the driver can immediately move the side support member 1
9 can be applied to the armpit. Then, a seat belt (not shown) may be fastened as usual. When the driver turns the steering wheel H to the right while driving, for example, the left arm goes forward to the right as the steering wheel H rotates, and the left side also tries to come forward to the right. In response to this movement, the first arm member 6 rotates to the right, the second arm member 17 slides forward, and the side support member 19 further rotates to the right, so that the left side support member 19 comes out to the front right. Can be. The right side support member 19 can perform the same movement. In this way, the driver remains reliably supported under the armpit,
Since it is possible to move back and forth and left and right smoothly, it is possible to minimize inconvenience caused by wearing the armpit support device 1 and reduce the load on the lumbar spine.

Accordingly, the underarm support device 1 for a seat according to the present invention.
Can reduce the burden of sitting on a person with a bad lumbar spine and driving fatigue during long-distance driving. The underarm support device of the present invention can be simply placed on an existing seat, and can be easily set on the seat, so that the horizontal frame is hung on the rear side of the upper portion of the seat bag, and the horizontal frame is hung from the upper portion to the front. If possible, any seat is applicable. For example, in this embodiment, the underarm support device for a seat is mounted on a seat in which the headrest is separately attached to the seatbag, but a seat in which the headrest is integrally formed on the seatbag may be used. Although the case where the armpit support device is mounted on the operator's seat has been described, the armpit support device of the present invention is not limited to the operator's seat, but may be a passenger seat or a rear seat. The underarm support device of the present invention can be applied to various seats, for example, to the seats of vehicles such as automobiles, Shinkansen, aircraft, and ships.

[0032]

According to the first aspect of the present invention, the underarm support device for a seat is made small and light so that it can be sandwiched between both sides of the occupant without any unusual feeling. Can be supported. According to the second aspect of the present invention, since the support base portion is formed of a cylindrical member, and the first arm member is formed integrally with the cylindrical member, the first arm member is formed with a simple structure. It can be supported rotatably and vertically movable. The invention according to claim 3 is to lightly hold the side portion of the seat bag with the contact member,
The vertical frame and side support members can be pre-positioned and installed near the occupant. According to the fourth aspect of the present invention, since the contact member is supported by the adjustment member, the vertical position of the vertical frame can be adjusted and the contact member can be set by the adjustment member. In the invention according to claim 5, since the first arm member rotates in the substantially horizontal direction with the seating operation of the seated person, the seated person can smoothly sit on the seat without the first arm member becoming an obstacle, After seating, the first arm member is centered at the original position, so that the armpit support member can be set to a position for supporting the armpit of the seated person. According to a sixth aspect of the present invention, the contact member is deformed and set in accordance with the shape of the side portion of the seat bag, and the position of both ends of the rubber band member is adjusted to set an arbitrary position on the plate surface of the contact plate. , The centering position of the first arm member can be easily adjusted according to the occupant. In the invention according to claim 7, the side support member can be positioned near the armpit before the seated person attaches the side support member by the second spring member and the third spring member. There is no need to pull to the armpit from. In the invention according to claim 8, the second spring member and the third spring member are formed of one rubber band member, and are bridged between the vertical frame member and the side support member. The rubber band member can also serve as the two spring members. According to a ninth aspect of the present invention, the roller body is rotatably supported by each of the shaft members connecting the vertical plate members, and furthermore, the roller body is rotatably supported by guide rails provided on the inner surfaces of the upper and lower wall bodies of the box-shaped cylindrical body. Because we are in contact
The second arm member is securely supported on the first arm member and can slide smoothly. Claim 1
In the invention described in Item No. 0, the interval between the vertical frames can be adjusted according to the size of the occupant because the interval adjusting mechanism for adjusting the interval between the vertical frames is provided on the horizontal frame.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a case where an embodiment of a seat underarm support device of the present invention is set on a seat.

FIG. 2 is a schematic perspective view showing a case where a driver is seated on the underarm support device for a seat in FIG. 1;

FIG. 3 is an enlarged side view of a main part of the armpit support device.

FIG. 4 is a partial view showing an attachment structure between a vertical frame and a support base member.

FIG. 5 is an enlarged partial view showing a part of a support portion of a first arm member and a second arm member.

FIG. 6 is a cross-sectional view showing a connection state between a vertical plate member of a first arm member and a box-shaped cylinder of a second arm member.

FIG. 7 is a plan view showing an attached state of a first spring member;

FIG. 8 is a schematic view showing an interval adjusting member provided on a horizontal frame.

[Explanation of symbols]

 Reference Signs List 1 armpit support device 3 horizontal frame 4 vertical frame 6 first arm member 17 second arm member 19 armpit support member

Claims (10)

[Claims] An underarm support device detachably mounted on a seat bag of a seat, a horizontal frame hung over an upper portion of the seat bag, and integrally formed with the horizontal frame, and hanging down to a front surface of the seat bag. It has a substantially inverted U-shaped frame main body composed of two vertical frames, and a support base portion rotatably attached to the vertical frames so as to be vertically movable, and extends in a direction substantially perpendicular to the vertical frames, and A first arm member rotatable in a substantially horizontal direction, a second arm member supported by the first arm member so as to be slidable in a longitudinal direction of the first arm member, and a substantially upper portion of the second arm member. An armpit support device for a seat, comprising: an armpit support member rotatably supported in a horizontal direction and having a cushion body applied to the armpit of a seated person. 2. The support base according to claim 1, wherein
The first arm member is formed integrally with the cylindrical member so as to be rotatable and vertically movable via a bearing, and the first arm member is formed integrally with the cylindrical member. Underarm support device for seats characterized. 3. The underarm support device for a seat according to claim 1, further comprising a contact member connected to the vertical frame and in contact with a side portion of a seat bag of the seat. 4. An apparatus according to claim 3, wherein an adjusting member for adjusting the vertical position of said vertical frame is provided at a lower end of said support base, and said contact member is supported by said adjusting member. Underarm support device for seats. 5. The first arm according to claim 1, wherein the first arm member rotatable in a substantially horizontal direction is centered in a position direction substantially perpendicular to a seat bag of a seat. An underarm support device for a seat, comprising a spring member. 6. The device according to claim 5, wherein the contact member comprises a deformable contact plate, the first spring member comprises a rubber band member, and an intermediate portion of the rubber band member comprises the support base portion. The underarm support device for a seat, wherein both end portions of the rubber band member are set so as to be position-adjustable at arbitrary positions on a plate surface of the contact plate. 7. The second spring member and the armpit according to claim 1, wherein the second arm member is forced in the direction of the support base portion so as to overlap the first arm member. An underarm support device for a seat, comprising: a third spring member for centering the support member in a direction parallel to the second arm member. 8. The device according to claim 7, wherein the second spring member and the third spring member are formed of one rubber band member, and are bridged between the vertical frame member and the side support member. An underarm support device for a seat, comprising: 9. The device according to claim 1, wherein the second arm member has a box-shaped cylinder, and the first arm member is inserted into the box-shaped cylinder. A vertical shaft member connecting the vertical plate members to each other, a roller body rotatably supported by the upper and lower shaft members, and the roller body being the box-shaped cylindrical body. An underarm support device for a seat, wherein the underarm support device is rotatably in contact with a guide rail provided on an inner surface of the upper and lower wall members. 10. The underarm support device for a seat according to claim 1, wherein an interval adjusting member for adjusting an interval between the vertical frames is provided on the horizontal frame. .