JPH0219859Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an armrest that can be used when an operator operates keys mainly in keyboards of word processors, personal computers, etc., and typewriters.

Generally, key operations in these office machines are performed by the operator's finger and arm movements. For this reason, when the work lasts for a long time, the operator becomes very fatigued, and his/her arms become sluggish and shoulders become stiff, which is extremely painful, and work efficiency is also reduced. Therefore, an armrest that allows you to operate keys while resting your arm or rest your arm in that state is very effective, but an armrest whose height cannot be adjusted is not sufficient. That is, it is desirable that the height can be freely adjusted to the optimum height according to the operator's preference. Furthermore, the feel on the arm is also an important point, and there has been a demand for an armrest that satisfies these conditions.

The present invention was developed in response to these requests, and the key can be freely adjusted to the optimum height for easy operation by the operator, and has a soft and pleasant feel.
The purpose of the present invention is to provide a convenient armrest that prevents fatigue in the operator's arms and shoulders and helps improve work efficiency.

Therefore, the present invention is characterized by: a mounting plate comprising a strip-shaped portion; and longitudinal locking portions projecting upward and inward from both ends of the strip-shaped portion;
A flexible band plate shape that is curved into a mountain shape with the outer end surfaces of the front and rear edges in contact with the inner surfaces of the locking portions of the mounting plate, and the both end edges are locked in the locking portions. a resin plate; a board placed in front of a keyboard etc. so that its placement position can be changed; A screw shaft is formed; a rotary operation knob attached to both protrusions of the screw shaft protruding from the space; a movable member that moves in the axial direction; a fixed member that is fixed to the mounting plate and externally fitted on the threaded portion and does not move in the axial direction due to rotation of the screw shaft around the axis; the upper pivot portion is movable; a support member pivotally connected to the support member and having a lower pivot portion pivotally connected to the substrate; an upper pivot portion disposed on the same horizontal line as the upper pivot portion of the support member and below the support member; a connecting member disposed on the same vertical line as the pivot portion and pivotally connected to the fixing member, the lower pivot portion being pivotally connected to the intermediate portion of the support member;

Hereinafter, the present invention will be explained in detail based on drawings showing embodiments.

In FIGS. 1, 2, and 3, reference numeral 1 denotes an arm mounting section, and a flexible band-like resin plate 2.
and a mounting plate 3 to which the resin plate 2 is attached. The mounting plate 3 consists of a strip-shaped portion and longitudinal locking portions 4, 4 that project upwardly and inwardly from the front and rear edges of the strip-shaped portion. With the outer end surfaces of both end edges 5, 5 of the plate-shaped resin plate 2 in contact with the inner surfaces of the locking portions 4, 4 of the mounting plate 3, the both end edges 5, 5 are in contact with the locking portions 4, 4. The resin plate 2 is curved into a mountain shape. That is, the resin plate 2 is elastically attached and detached due to its elasticity. In this way, the resin plate 2 is made removable and a space 6 is formed between it and the mounting plate 3, so that this space 6 can be used to insert sheet-like scales for creating charts or for computer use. You can store data, phone numbers, various code numbers, printed materials such as facsimile phone numbers, and notes, and you can easily take them in and out. Furthermore, it is also possible to provide the above-mentioned scale directly on the back surface of the resin plate 2, and it is more preferable if the resin plate 2 is a transparent body. If the transparent body is used, it is convenient because the printed matter or memo can be stored in a curved shape along the back surface of the resin board 2 and viewed from the outside. It is also preferable to form a recess only in the vicinity of the longitudinal center of the resin plate 2 and use the recess as a storage section for storing writing instruments and the like. Note that the resin plate 2 is made of a material with appropriate softness and is designed to give a soft feel to the arm during use, but since various degrees of softness can be selected, several types of resin plates 2 are available. You can also keep it and use it according to your preference.

This arm mounting portion 1 is supported on a substrate 8 by an elevating mechanism 7 such that its height can be freely adjusted. This elevating mechanism 7 includes a screw shaft 10 rotatably supported on the mounting plate 3 at two longitudinally left and right places by fixing members 9, 9;
A movable member 11 that is screwed onto the screw shaft 10 and moves left and right by rotation thereof, and an upper pivot portion of the movable member 1
1 and a support member 13 whose lower pivot portion is pivoted to the base plate 8 (specifically, a bearing member 12 attached to the base plate 8), and whose upper pivot portion is pivoted to the fixed member 9. and a connecting member 14 whose lower pivot portion is pivotally attached to the intermediate portion of the support member 13, and two sets of the elevating and lowering mechanisms 7 are provided symmetrically.

Specifically, the screw shaft 10 is inserted into the space 6, and has screw portions 15, 15 formed at both ends. And these left and right threaded parts 15,
Fixing members 9, 9 are formed with opposite threads to each other and are attached to the mounting plate 3 with fasteners 16 such as screws.
Drive pins 17 are loosely fitted into the member 9 on both sides of the member 9.
is driven in, thereby preventing movement in the left and right direction. A knob 18 for rotational operation is fixed to both ends of the screw shaft 10. Further, the movable member 11 is screwed into a threaded portion 15 between the fixed member 9 and the knob 18, and long holes 1 formed through the mounting plate 3 are formed on both sides of the movable member 11 in a direction perpendicular to the threaded shaft 10.
The upper end portions of the lever portions 20, 20 on both sides of the support member 13, which are inserted through the lever portions 9, 19 from below, are pivotally connected by pivot fittings 21 such as stepped screws or pins. This support member 13
The bearing member 12, whose lower ends of the lever parts 20, 20 are pivoted by a pivot 22, is located directly below the fixing member 9 and is fixed on the base plate 8 by a fixing means such as welding. The lower end portions of 23 and 23 are connected to the lever portion 2 of the support member 13 by the pivot pin 24.
0 and 20, respectively, and the upper end portion is pivotally attached to both side surfaces of the fixing member 9 in a direction perpendicular to the screw shaft 10 using pivot fittings 21 such as stepped screws or pins. The upper pivot of the connecting member 14 and the upper pivot of the support member 13 are arranged on the same horizontal line, and the upper pivot of the coupling member 14 and the lower pivot of the support member 13 are arranged on the same vertical line. This horizontal line, the vertical line, and the supporting member 13 form a right triangle, and this right triangle and the connecting member 14 form two isosceles triangles. Due to this relationship, the arm mounting portion 1 is horizontal. It is possible to ascend and descend vertically while maintaining the Note that the lever portions 20 and 20 and 23 and 23 on both sides of the supporting member 13 and the connecting member 14 are integrally formed via connecting portions 25 and 26, respectively.

The board 8 includes a keyboard 28 (see FIG. 6).
It is placed in front of the desk so that its position can be changed, and it is desirable to have a large weight for stability of the armrest, but it is also possible to attach adhesive tape to the back side or fix it to the desk with a vise. It is also preferable to increase the depth and extend it backwards,
A keyboard or the like may be placed on top of it to prevent it from moving due to its weight.

In addition, the reference numeral 27 in FIG. 2 indicates the elongated hole 1 of the mounting plate 3.
9... is a notch formed in a part of the supporting member 13 and the connecting member 1 during the lowering movement of the elevating mechanism 7.
This is for escape of the pivot pin 24 for connection with 4.

The armrest configured as described above is placed in front of the keyboard 28, etc., as shown in FIG. However, in this case, the height of the arm mounting portion 1 can be easily adjusted by rotating the knobs 18, 18 on both sides. That is, in FIG. 1, when the knobs 18, 18 are rotated, the screw shaft 10 is rotated, and the movable members 11, 11 screwed onto the screw shaft 10 are moved laterally as shown by arrow A. Along with this, the support members 13, 13 are attached to the pivot shafts 2 of the bearing members 12, 12.
2 as a fulcrum, as shown by arrow B, and the arm mounting portion 1 vertically moves up and down as shown by arrow C, while maintaining the horizontal position. FIG. 4 shows a case where the elevating mechanism 7 is in the raised position, and when the knob 18 is now rotated to lower the arm mounting portion 1, the movable member 11 is separated from the fixed member 9 as shown in FIG. At the same time, the support member 13 swings around the pivot 22 and falls sideways, lowering the arm mounting portion 1. In addition,
The imaginary line in FIG. 5 indicates the mounting plate 3 at the lowest position of the arm rest 1, and in this state
3 and the connecting member 14 will hang on the mounting plate 3, but can escape through the notch 27.

In the above description, the armrest is used for key operations on office machines, but it can also be used for writing work, abacus, etc.

Since the present invention is constructed as described above, it produces the following effects.

The arms placed on the resin plate 2 can be given a soft feel, and by preparing several types of resin plates 2, they can be freely replaced, and even if they become dirty, they can be easily cleaned by removing them. Can be done. Moreover, once the resin plate 2 and the mounting plate 3 are assembled, the resin plate 2 can be slid in the longitudinal direction,
Since it cannot be disassembled unless the opposite ends 5, 5 of the mountain-shaped resin plate 2 are brought close to each other, it is difficult to come off.

However, the vertical movement operation is done using the knobs 1 on both ends.
Since it is only necessary to rotate both 8 and 18 at the same time or only one of them, the operation can be easily performed regardless of whether the operator 28 is left-handed or right-handed. In addition, the screw shaft 10 rotates only by rotating the knob 18, and even if you release your hand and place your arm on the arm rest 1 after adjusting the height, the screw shaft 10 will not rotate.
Since the arm holder 1 does not rotate, the arm rest 1 does not move up or down, so there is no need to adjust the height again, and there is no need to provide a separate locking device. Moreover, since the support member 13 swings from a substantially vertical state to a substantially horizontal state, the vertical stroke of the arm mounting portion 1 becomes large, and a large height adjustment margin is obtained. The connecting member 14 connects the threaded portions 15 and 1 at both ends of the threaded shaft 10.
5 is supported, the arm mounting section 1 can move up and down in a stable state. In addition, the board 8
Since the arm rest 1 is provided on the top, the fact that the installation position of this board 8 can be changed is very convenient because this arm rest can be placed in any place, and it can be removed when not in use. can. Furthermore, since a space 6 is formed between the resin plate 2 and the mounting plate 3, the space 6 can be used to store various printed matter and memos, and can also be taken out and put in easily.

Furthermore, since the arm rest 1 is supported on the board 8 so that its height can be freely adjusted by the lifting mechanism 7, the operator can freely adjust the height to the optimum height that makes it easy for the operator to operate the keys. This prevents arm and shoulder fatigue and improves work efficiency. Since the height is adjustable, the armrest can be used in a wide range of applications, and has the versatility of being usable for writing, abacus, etc. Therefore, especially when used for writing work, it not only prevents fatigue but also prevents stains on the cuffs of clothes.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of the present invention;
Fig. 2 is a partially cutaway plan view, Fig. 3 is a side sectional view, Figs. 4 and 5 are sectional views of main parts showing the operating state, and Fig. 6 is a perspective view showing an example of the usage state. be. DESCRIPTION OF SYMBOLS 1...Arm mounting part, 2...Resin plate, 3...Mounting plate, 5...Edge part, 7...Lifting mechanism, 8...Substrate.

Claims (1)

[Claims for Utility Model Registration] A mounting plate 3 consisting of a strip-shaped portion and longitudinal locking portions 4, 4 projecting upward and inward from both ends of the strip-shaped portion, and front and rear ends. Both end edges 5, 5 are locked to the locking parts 4, 4 with the outer end surfaces of the edges 5, 5 in contact with the inner surfaces of the locking parts 4, 4 of the mounting plate 3, respectively, A flexible band-shaped resin plate 2 curved into a mountain shape, a board 8 placed in front of the keyboard 28 etc. so that the mounting position can be changed, the mounting plate 3 and the band-shaped resin plate 2. A screw shaft 10 is inserted into the formed space 6 and has threaded portions 15, 15 formed on both ends thereof, and a rotation operation knob 18 attached to both protrusions of the screw shaft 10 that protrudes from the space 6. , 18, movable members 11, 11 that are fitted onto the threaded portions 15, 15 of the screw shaft 10 and move in the axial direction as the screw shaft 10 rotates around the axis; At the same time, the threaded part 1
Fixing members 9, 9 that are fitted externally on the screw shafts 10 and 15 and do not move in the axial direction due to the rotation of the screw shaft 10 around its axis.
and support members 13, 13 whose upper pivot portions are pivotally connected to the movable member 11 and whose lower pivot portions are pivotally connected to the substrate 8, and whose upper pivot portions are the upper pivot portions of the support member 13. The support member 1 is arranged on the same horizontal line and
A connecting member 1 which is disposed on the same vertical line as the lower pivot portion of No. 3 and is pivotally connected to the fixing member 9, and whose lower pivot portion is pivotally connected to the intermediate portion of the support member 13.
An armrest characterized by having 4, 14 and.