JP2003125894A - Armrest device with height adjusting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an armrest device with a height adjusting function, which can be moved to open side parts of a seat of a chair, etc., and removed at need. SOLUTION: This armrest 2 is equipped with a support member 10 placed from around the back frame 8 attaching position to the foot frame 7 attaching position on the base frame 5 and an armrest member 11 mounted on the support member 10. The support member 10 pivotally supports the end part to the back side frame 8 of the base frame 5 via a rotary attaching/detaching support mechanism 12. On the other hand, the end part to the foot frame 7 attaching position is detachably supported via a lock mechanism 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armrest device having a height adjusting function that allows a user to take a stable sitting posture regardless of the physical constitution of the user.

[0002]

2. Description of the Related Art Conventionally, wheelchairs have been used for elderly people, seriously ill patients,
It is an indispensable equipment for people with walking disabilities and is designed to be easy for most users to use. For example, if the arm height (height of the elbow rest of the armrest) that supports the user in maintaining a stable sitting posture is too low, it may cause the posture to collapse, while if it is too high, it may cause stiffness and pain in the shoulder. Therefore, the height is set to suit most users.

[0003]

However, there are still cases in which the height, physique, and physical condition of the user cannot be satisfied, and it is desired to have a function of adjusting the height of the armrest member of the armrest. The present invention has been proposed in view of the above background, and an object thereof is to provide an armrest device having a height adjusting function, which can take a stable sitting posture regardless of the physical constitution of the user. .

[0004]

In order to solve the above-mentioned problems, the present invention comprises, in claim 1, a support member arranged along a side surface of a sitting position and an elbow rest member attached to the support member. The support member is formed by bending both ends to form a substantially U-shape, and a guard panel which is held between the vicinity of both ends of the support member and a holding body provided in the middle of the support member from the guard panel to the elbow pad. Disclosed is an armrest device having a height adjusting function in which a member is held at a desired height position by a height adjusting mechanism via a column. Further, in the present invention, in claim 2, the height adjusting mechanism forms an insertion hole through which the support column is inserted in the holding body, and a guard panel directly below the holding body is provided with a support portion storing section for receiving the support column. Provided, a lateral hole is formed so as to penetrate through the insertion hole in the holding body, and a plurality of adjustment holes are provided in a row in the support part, and from the lateral hole in the support body, in the support part inserted into the insertion hole of the support body. A height adjusting function in which a height holding rod is inserted into one of the plurality of adjusting holes to hold the strut at that position to hold the elbow rest member at a desired height position. Disclosed is an armrest device. Further, in the present invention, in claim 3, the height holding rod is a shaft that can be fitted into one of the plurality of adjustment holes in the support column inserted into the insertion hole of the holding body from the lateral hole of the holding body. Disclosed is an armrest device having a height adjusting function, which includes a portion and a head portion that is elastically locked to the holding body when the shaft portion is fitted into the adjustment hole of the support portion from the lateral hole of the holding body. To do. Further, in the present invention, in claim 4, the armrest device having a height adjusting function, which is the seat portion of the furniture chair, is disclosed. Further, according to the present invention, in claim 5, the sitting position is an armrest device having a height adjusting function which is a seat portion of a wheelchair.

According to the first aspect, the user adjusts the elbow support member mounted on the support member arranged along the side surface at the sitting position by adjusting the elbow support member to a height position where it is easy to use. You can maintain a stable posture as a support.

According to the second aspect of the present invention, when adjusting the armrest member, the support portion of the armrest member is inserted into the support portion storage portion of the guard panel directly below the support body from the insertion hole formed in the support body. The height holding rod is inserted into one of the plurality of adjusting holes in the supporting column through the lateral hole of the holding body, and the supporting column is held in that position so that the elbow rest member has a desired height. Can be held in position.

According to the third aspect of the present invention, when the shaft portion of the height holding rod is inserted from the lateral hole of the holding body into one of the plurality of adjusting holes of the supporting column inserted into the through hole of the holding body. In addition, the head can be locked to the holding body by elasticity so as not to fall off.

According to the fourth aspect, the user can maintain a stable posture by adjusting the elbow support member to a height at which it is easy to use, and further make the chair easier to use.

According to the fifth aspect, the user can maintain a stable posture by adjusting the elbow support member to a height that makes it easy to use, and make the wheelchair easier to use. Also, when bringing a wheelchair close to a table,
By adjusting the height of the elbow rest member, it is possible to prevent the elbow rest member from hitting the table plate.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an armrest device having a height adjusting function according to the present invention will be described with reference to one embodiment used in a wheelchair and with reference to the accompanying drawings. FIG. 1 shows a wheelchair 1, which is equipped with an armrest device 2 on the side surface of a seat. In this wheelchair 1, a front wheel 3, a base frame 5 on which a rear wheel 4 having a diameter larger than that of the front wheel 3 is mounted, and a foot frame 7 that holds a footrest 6 projecting forward of the front wheel 3 on the base frame 5. A back frame (not shown) extending above the rear frame 4 from the base frame 5, a handle portion 8 connected to the back frame, and a portion from the vicinity of the back frame attachment portion of the base frame 5 to the foot frame 7 attachment portion. The seat part 9 and the back part 10 arranged along the back frame are provided, and the armrest device 2 is arranged on both side surfaces of the seat part 9.

The armrest device 2 includes a support member 11 arranged from the vicinity of the attachment position of the back frame 8 on the base frame 5 to the attachment position of the foot frame 7, and an elbow support member 12 attached to the support member 11. The support member 11 is attached to the base frame 5 at an end portion (to be described later) on the back frame side via a rotation attachment / detachment support mechanism (not shown), while at the end portion on the attachment point side of the foot frame 7. The structure (described later) is detachably mounted via a lock mechanism (not shown).

As shown in FIG. 2, the support member 11 is formed into a substantially U shape by bending both ends using a pipe material, and a guard panel 13 is provided between the both ends. That is, the support member 11 is formed by integrally connecting two pipe members by a holder 14 provided in the middle,
From the holder 14 to the center of the guard panel 13, the armrest member 12 is held by a height adjusting mechanism 16 via a column 15. The support member 11 is, of course, not limited to a pipe material, and may be a bar material formed in the U-shape.

The elbow support member 12 is made of a well-known synthetic resin molding, and although not described in detail, the user grips the front end portion facing the front side of the wheelchair 1, that is, the side where the foot frame 7 is attached. Molded for ease of use. And the said pillar part 15 is attached to the middle of the armrest member (see FIG. 3). An adjustment hole h for adjusting a support height by a height adjusting mechanism 16 described later is formed in the column portion 15.
Six columns are arranged at equal intervals (see FIG. 4).

The guard panel 13 includes a support member 11
, Which is attached to the end portion E1 attached to the back frame side and the end portion E2 attached to the foot frame 7 attachment portion side so as to cover the side surface of the seat portion 9, and directly below the holding body 14 in the center portion. Therefore, a column portion storage portion 17 for receiving the column portion 15 of the elbow support member 12 is provided.

Further, the holding body 14 is a connecting means for integrating the two pipe members constituting the supporting member 11 in the middle as described above, and is constituted by the lower holding body 14a and the upper holding body 14b, These lower holder 14a and upper holder 14
By sandwiching the pipe material with b, the connecting bolts 18, 18
I am trying to fix it. Further, the lower holding body 14a and the upper holding body 14b are formed with insertion holes 19 for inserting the support columns 15 of the elbow support member 12. In addition, the insertion hole 19 is also formed in the support portion storage portion 17 of the guard panel 13 located immediately below the lower holding body 14a.

The height adjusting mechanism 16 is formed by penetrating the lateral hole 20 so as to be orthogonal to the insertion hole 19 formed in the lower holding body 14a of the holding body 14.
From the above, the height holding rod 21 is inserted into one of the plurality of adjusting holes h in the supporting column 15 inserted into the inserting hole 19 of the holder 14 to hold the supporting column 15 at that position. The elbow support member 12 is held at a desired height position.

The height holding rod 21 extends from the lateral hole 20 in the lower holding body 14a to the insertion hole 19 in the lower holding body 14a.
The shaft portion 21a that can be fitted into one of the plurality of adjustment holes h of the support column portion 15 inserted into the support hole 15 and the lateral hole 2
It has a head portion 21b which is elastically locked to the lower holding body 14a when the shaft portion 21a is fitted into the adjustment hole h in the column portion 15 from 0. In this case, the head 21
As shown in the drawing, b is a substantially cap-shaped molded member made of a well-known synthetic resin having high elasticity, and has a central portion 22 to which the tip of the shaft portion 21a is attached and an integrally deformable extension from the central portion 22. It is composed of a pair of existing locking pieces 23, 23. An engaging surface 24 formed in an arc shape having a predetermined curvature is provided from the mounting portion of the shaft portion 21a of the central portion 22 to both locking pieces 23, 23. On the other hand, a spherical surface 25 having a slightly larger radius of curvature than the radius of curvature of the engaging surface 24 of the head portion 21b is formed on the surface of the lower holding body 14a where the lateral hole 20 is formed.

According to the armrest device 2 as described above, the user places the upper limb on the elbow rest member 12 supported by the support member 11 arranged along the side surface of the seat portion 9 of the wheelchair 1, A stable posture can be maintained by using the elbow support member 12 as a support.

At this time, if the height of the armrest member 12 is too high or too low, the height adjustment mechanism 16 can be operated to adjust the height of the armrest member 12. First, by holding the head portion 21b of the height holding rod 21, the lower holding body 1
4a is pulled away from the spherical surface 25 of the lateral hole 20 forming surface, and the shaft portion 21a is pulled out from the adjustment hole h in the column portion 15. At this time, the elbow support member 12 is supported by one hand to support the shaft portion 2
Make it easy to pull out 1a. As a result, the support portion 15 of the elbow support member 12 is released from the constraint, and the insertion hole 19 from the holder 14 to the support portion storage portion 17 of the guard panel 13 can be freely moved up and down. Then, bring the elbow support member 12 to a desired height and push it in again by holding the head portion 21b of the height holding rod 21, and from the lateral hole 20 in the lower holding body 14a, the shaft portion 21a is adjusted in another manner in the column portion 15. It can be fixed by inserting the hole h.

In this way, the height of the armrest member 12 can be adjusted according to the user, so that the sitting posture can be maintained comfortably regardless of the physical constitution and physical condition of the user. .

Although the armrest device having the height adjusting function according to the present invention has been described by showing the armrest device 2 provided in the wheelchair 1, the armrest device may be provided in the ordinary chair 26 as a matter of course. it can.

[0022]

According to the present invention, it is possible to provide an armrest device having a height adjusting function, which makes it possible to comfortably take a sitting posture regardless of the physique and physical condition of the user, and it is comfortable. You can bring chairs and wheelchairs.

[0023]

[Brief description of drawings]

FIG. 1 is a side view showing an example of a wheelchair using an armrest device according to the present invention.

2 is a side view for explaining the function of the armrest device shown in FIG. 1. FIG.

3 is a side view of an armrest member of the armrest device shown in FIG.

4 is a front view of the elbow rest member shown in FIG. 3. FIG.

5 is a cross-sectional explanatory view showing the structure of a height adjusting mechanism of the armrest device shown in FIG.

6 is a plan view of the height adjusting mechanism shown in FIG.

FIG. 7 is a perspective view of a main part for explaining the operation of the armrest device according to the present invention.

FIG. 8 is a perspective view of a main part for explaining the operation of the armrest device according to the present invention.

FIG. 9 is a perspective view of a main part for explaining the operation of the armrest device according to the present invention.

FIG. 10 is a side view showing an example of a chair using the armrest device according to the present invention.

[Explanation of symbols]

1 wheelchair 2 Armrest device 3 front wheels 4 rear wheels 5 base frame 6 footrest 7 foot frame 8 handle 9 seats 10 back 11 Support member 12 Elbow support members 13 Guard panel 14 Holder 14a Lower support 14b Upper holder 15 Support 16 Height adjustment mechanism 17 Strut storage 18 coupling bolts 19 insertion holes 20 horizontal holes 21 Height holding rod 21a Shaft 21b head 22 Center 23 Locking piece 24 Engaging surface 25 spherical surface 26 chairs h Adjustment hole E1, E2 end

Claims (5)

[Claims] 1. A support member disposed along a side surface of a sitting position, and an elbow rest member attached to the support member, wherein the support member is formed into a substantially U-shape by bending both end sides thereof. A guard panel that is held in the vicinity, and a structure in which the elbow support member is held at a desired height position by a height adjustment mechanism from a holder provided in the middle of the support member to the guard panel via a column portion. An armrest device with a height adjustment function characterized by the above. 2. The height adjusting mechanism has an insertion hole for inserting a support column in the holder, and a guard panel storage section directly below the holder for receiving the support column. A through hole is formed so as to be orthogonal to the insertion hole in, and a plurality of adjustment holes are provided in a row in the column part,
From the lateral hole in the holding body, insert a height holding rod into one of the plurality of adjustment holes in the supporting column inserted in the insertion hole of the holding body, and hold the supporting column at that position to hold the elbow. The armrest device having a height adjusting function according to claim 1, wherein the member is configured to be held at a desired height position. 3. The height-holding rod includes a shaft portion that can be fitted into one of the plurality of adjustment holes in the support portion inserted through the through hole of the holding body from the lateral hole of the holding body, and the holding body. 3. The height adjusting function according to claim 2, further comprising: a head that is elastically locked to the holding body when the shaft portion is fitted into the adjustment hole in the supporting column portion from the lateral hole of the above. Armrest device. 4. The armrest device having a height adjusting function according to claim 1, wherein the sitting position is a seat portion of a furniture chair. 5. The armrest device having a height adjusting function according to claim 1, wherein the sitting position is a seat portion of a wheelchair.