JP5740013B1 - Arm support device - Google Patents

Abstract

Provided is an arm support device that allows an operator's arm part to descend toward the elbow side during mouse operation, etc., so that the movement around the operator's arm part becomes smooth. A clamp mechanism having a fulcrum formed so as to form a mounting portion to a fixed member and supporting the rotational movement of another member, and a rotational movement fulcrum O1-O1 formed in the clamp mechanism 1 as a base point The arm assembly 2 has a predetermined length and is provided on the upper side of the cover 23 that forms the arm assembly 2. The arm assembly 2 is attached so that the arm assembly 2 can be moved in the longitudinal direction, and the elbow rest holder 3 is formed so as to hold an elbow portion which is a part of the operator's arm portion. [Selection] Figure 1

Description

  The present invention relates to an arm support device that reduces as much as possible the feeling of fatigue that occurs on a hand, arm, or shoulder when operating a keyboard or mouse in a personal computer or word processor.

  Examples of the conventional apparatus include those described in Utility Model Registration No. 3077770 or JP-A-2002-51862.

Utility Model Registration No. 3077770 JP 2002-51862 A

  By the way, in the above-mentioned conventional one, the portion of the elbow rest that forms the arm support can be moved horizontally within a predetermined angle range with the pivot portion fixed to the table or the like as a fulcrum. By moving a finger on the tip of an arm (arm) held on the elbow rest portion having such a configuration, a mouse operation or a keyboard operation can be performed. However, since such an operation motion is always performed in a certain plane formed so as to be parallel to the surface of the table or the like, the operator can perform the operation for a long time. There is a problem that the user feels uncomfortable or tired on the arms and shoulders. In order to solve such a problem, when the mouse is operated, the arm part of the operator descends toward the elbow side, so that the operation around the arm part of the operator is performed. An object (problem) of the present invention is to provide an arm support device that is performed in a state that matches the biological sense of the operator.

  In order to solve the above problems, the following measures are taken in the present invention. That is, in the first invention according to the first aspect of the present invention, with respect to the arm support device, a clamp mechanism which has a fulcrum formed so as to form a mounting portion to the fixed member and to support the rotational movement of the other member. And an arm formed by a base and a cover that is mounted in a state having a predetermined inclination angle and is provided so as to be able to perform a rotational motion with a rotational motion fulcrum formed in the clamp mechanism as a base point. An elbow that is provided on the upper side of the assembly and the cover that forms the arm assembly, is attached so as to be movable in the longitudinal direction of the arm assembly, and is a part of the arm of the operator The elbow rest holder formed so as to hold the place was adopted, and a configuration was adopted.

Next, in the second invention which is the invention described in claim 2, regarding the arm support device, a clamp having a fulcrum formed so as to form a mounting portion to the fixing member and to support the rotational movement of the other member. A mechanism, and an arm assembly provided so as to be able to perform a rotational motion based on a rotational motion fulcrum formed in the clamp mechanism, and the arm assembly is based on a rotational motion fulcrum that forms the clamping mechanism. And a base arm that is mounted with a predetermined inclination angle, and is provided on the upper side of the base arm so as to be capable of relative sliding movement on the base arm. The bearing portion provided on one end side of the base arm is provided so as to be slidable. A slide arm having a slide shaft therein, as consisting of, further, the a one end side of the slide arm, at the elbow is part of the arm of the operator with provided on its upper side it was decided to adopt a structure in which to have the elbow supporting holder is formed so as to hold the.

  Next, in a third invention which is the invention described in claim 3, in the arm support device described in claim 1 or 2, the clamp mechanism includes a clamp part which forms an attachment part to a fixing member, and A hinge portion provided in a pair with the clamp portion, wherein one end portion of the arm assembly is rotatably attached via a hinge pin, and the hinge portion is formed A configuration is adopted in which a spring is attached to the hinge pin so that one end side of the arm assembly can be elastically displaced by a predetermined amount in the axial direction of the hinge pin.

  Next, according to a fourth aspect of the present invention, the arm assembly is provided on a base having a predetermined length and on the base. And a slide shaft having a guide rail shape, and a slider formed so as to be slidable on the slide shaft and formed to hold the elbow holder. It was decided to adopt the configuration.

  Next, in a fifth invention which is an invention according to a fifth aspect, the arm support device according to the fourth aspect is configured such that a slider provided on the slide shaft is attached via a bush. I decided to take it.

  Next, in a sixth invention which is the invention described in claim 6, with respect to the arm support device according to claim 4 or 5, the slider is formed so as to be slidable on the slide shaft. It has a block-like form, and has a protruding guide portion formed on the lower surface side thereof so as to engage with a concave groove formed in the base and to be slidable on the concave groove. It was decided to adopt the configuration.

  In the first invention according to the first aspect of the present invention, the operator smoothly operates the mouse and the like with the elbow portion which is a part of the arm portion placed on the elbow holder. Will be able to. Particularly in the present invention, the arm assembly on which the elbow holder is installed operates in a predetermined plane with the clamp mechanism as a base point. Furthermore, the elbow holder can be slid in the longitudinal direction on the arm assembly. In addition to the above, the arm assembly is configured to perform an arc motion in a plane having a predetermined inclination angle with the clamp mechanism side that is the mounting portion as a base point. As a result, the operator can freely move the wrist or finger existing on the distal end side of the arm part in the front-rear direction or the left-right direction. As a result, the mouse can be operated smoothly. As a result, even when the mouse is operated for a long time, there is no feeling of fatigue.

  Next, in the second invention according to the second aspect of the invention, the arm assembly includes a base arm provided on the rotational movement fulcrum side, and relative sliding movement in the longitudinal direction with respect to the base arm. The slide arm is provided as possible, and an elbow rest holder is provided on one end side of the slide arm. In addition to these, as described in the first aspect of the invention, the arm assembly performs an arc motion in a plane having a predetermined inclination angle with respect to the clamp mechanism side that is the mounting portion. It is like that. For these reasons, the operator's elbow part side is always held in a state of being lowered below the fingertip side. As a result, the operator can smoothly operate the mouse while the elbow is placed on the elbow holder.

  Next, in the third invention according to the third aspect of the present invention, the entire arm assembly can swing about one end of the arm assembly with respect to the hinge pin forming the hinge portion. It is like that. Further, a spring acting with a reaction force in the axial direction of the hinge pin is provided at the hinge pin. Therefore, when the operator tries to operate the mouse while the elbow is placed on the elbow holder, the entire arm assembly is inclined downward with the hinge pin as a fulcrum. At this time, the entire arm portion of the operator is supported entirely from below by the action of the spring via the tilted arm assembly. As a result, the operator in such a state can smoothly operate the mouse in a comfortable state.

  According to a fourth aspect of the present invention, the arm assembly is composed of a base extending in the longitudinal direction and a slide shaft provided on the base. The slider is provided at the slide shaft so as to be slidable on the slide shaft, and the elbow holder is provided at the slider. Rotate the operator's fingers as the attachment part of the arm assembly by applying a force to move the elbow part placed on the elbow holder in the front-rear direction along the slide shaft. It becomes possible to move smoothly to the fulcrum side of the movement. As a result, the mouse can be operated smoothly.

  Next, in the fifth aspect of the invention according to the fifth aspect of the present invention, since a bush having an excellent sliding function is provided at the slider that slides on the slide shaft, the movement of the slider is prevented. It becomes smooth and the movement of the elbow rest holder provided on the slider in the longitudinal direction of the arm assembly can be performed smoothly. As a result, the operator can smoothly move the elbow part (held) on the elbow holder and the entire arm part, and the mouse operation by the operator can be performed more smoothly. Will be done.

Next, in the sixth invention according to the sixth aspect of the invention, the guide portion provided on the slider engages with the concave groove formed on the upper surface side of the base, whereby the slider Rotational motion around the slide shaft axis is restricted. As a result, during operation on the arm assembly of the elbow rest holder mounted on the slider, the grabbing or the like is suppressed, and the elbow section of the operator and the entire arm section are securely held by the elbow rest holder. Will be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an overall configuration of a first embodiment of the present invention. It is an expansion | deployment perspective view which shows the whole structure of what concerns on 2nd embodiment of this invention. It is a fragmentary sectional view which shows the structure around the clamp mechanism part and hinge mechanism part concerning this invention. It is a longitudinal cross-sectional view which shows the whole structure of what concerns on 1st embodiment of this invention. It is a fragmentary sectional view which shows the structure of the slide part of what concerns on 2nd embodiment of this invention. It is a fragmentary sectional view which shows the structure of the attaching part of the elbow holder concerning this invention. It is a figure which shows the state at the time of the arm support apparatus action | operation in this invention. It is a figure which shows the operating state of the elbow holder in this invention. It is a top view which shows the state at the time of operation of a mouse | mouth and a keyboard in the state in which the operator's arm part was mounted on the arm support apparatus concerning this invention. It is a figure which shows the non-rotation mechanism regarding the slide shaft axis center of the slider concerning this invention.

An embodiment for carrying out the present invention will be described with reference to FIGS. In the first embodiment of the present invention, for example, as shown in FIG. 1, a clamp mechanism 1 having a fulcrum formed so as to form a mounting portion to a fixed member and support the rotational movement of other members. Are attached so as to be capable of rotational movement with a rotational movement fulcrum (O ₁ O ₁ ) formed in the clamp mechanism 1 as a base point, and have a predetermined length and a base 22 and a cover 23. The arm assembly 2 is provided on the upper side of the cover 23 that forms the arm assembly 2 and is attached so that the arm assembly 2 can move in the longitudinal direction. The elbow rest holder 3 is formed so as to hold a portion of the elbow portion 55 which is a part, and is basically composed of the elbow rest holder 3.

  In such a basic configuration, the clamp mechanism 1 is provided in a state of being paired with a clamp bracket 11 that forms an attachment portion to a fixing member, and the clamp bracket 11. The hinge bracket 12 is attached so that the end 21 side thereof can be rotated via a hinge pin 121. In the structure as described above, at the hinge pin 121, as shown in FIG. 3, for example, one end 21 side of the arm assembly 2 is provided with the hinge pin 121 and a slide bush 26 provided around the hinge pin 121. As a basis, a spring 122 that operates to push up one end 21 side of the arm assembly 2 upward is provided. Further, around the clamp mechanism 1 having such a configuration, the arm assembly 2 is formed so as to cover the periphery of the end 21 of the arm assembly 2 in a state where the arm assembly 2 is assembled to the hinge bracket 12. The plastic clamp holders 6, 6 ′ are attached via attachment bolts 15, 16, etc., so that the whole is integrated together. By adopting such a configuration, the attachment portion of the cover 23 forming the arm assembly 2 to the hinge pin 121 is always lifted upward by the action of the spring 122, and the elbow rest holder 3 is interposed therebetween. In response to the input load from the operator's elbow, the entire arm assembly 2 is lifted upward. As a result, the rotational movement of the arm assembly 2 is smoothly held.

  In what has such a configuration, the configuration around the elbow holder 3 will be described with reference to FIG. 1 or FIG. First, as shown in FIG. 1, the elbow holder 3 has a specific configuration of a concave shape and a holder 31 formed so as to hold the entire elbow portion 55 of the operator, and the holder 31. The pad holder 32 provided on the top and having an appropriate cushioning property, and the elbow rest pad 33 installed on the pad holder 32 and touched directly by the operator's elbow part 55 It is. In the structure as described above, a pivot member 35 described later is attached to the center portion on the lower surface side of the holder 31 so that relative rotational movement is possible with the axial center line of the pivot member 35 as a base point. It has become. Specifically, the pivot member 35 is a bearing with a male screw.

  A male screw portion 355 (see FIG. 1) is formed on the lower surface side of the central portion of the pivot member 35 having such a configuration, and the male screw portion 355 is located at the slider. 27 is screw-coupled to a female screw portion 277 formed at 27. Further, for example, as shown in FIG. 4, such a slider 27 is slidably attached to a slide shaft 28 provided on the base 22 via a slide bush 26 provided therein. It has become. As a result, the elbow holder 3 can be slid along the longitudinal direction on the slide shaft 28. In order to cope with such sliding movement of the elbow rest holder 3, it is provided on the lower face side of the elbow rest holder 3 at the upper face side of the cover 23 provided so as to cover the slide shaft 28 and the like. An opening 235 formed so that the pivot member 35 can be moved is provided. By adopting such a configuration, the elbow rest holder 3 can be moved in the longitudinal direction on the arm assembly, and the upper surface of the arm assembly 2 at each point in the longitudinal direction on the arm assembly 2. Rotational motion is possible in a predetermined plane parallel to. That is, it becomes possible to rotate in a predetermined plane around the axis of the pivot member 35.

Next, the attachment state based on the hinge pin 121 of the arm assembly 2 having such a configuration will be described. For example, as shown in FIG. 4, the arm assembly 2 is attached to the hinge pin 121 so that the entire arm assembly 2 can freely rotate, and its rotational surface is in relation to the center line O ₁ O _{1 of the} hinge pin 121. And a surface (a surface including O ₃ O ₃ ) inclined by a predetermined angle (θ) with respect to a surface (a surface including O ₂ O ₂ ) formed in a perpendicular direction. That is, the longitudinal center line (O ₃ O ₃ ) of the slide shaft 28 that is the basis of the slide movement of the elbow rest holder 3 is relative to the base surface (O ₂ O ₂ ) formed on the basis of the hinge pin 121. The state is inclined by the angle θ. As the value of θ, an appropriate value in the range of 2 ° to 5 ° is adopted in the present embodiment. Most preferred is a value of about 3 °. By adopting such an inclination angle, for example, as shown in FIG. 7 or FIG. 8, when the operator places the elbow part 55 on the elbow rest holder 3 when the operator operates the mouse, the operator's mouse The finger on the 8 operation side comes to be higher than the elbow part 55, and the operator can easily operate the mouse 8 and the like.

  Next, the sliding operation of the elbow rest holder 3 provided at the arm assembly 2 having such a configuration will be described. That is, as shown in FIG. 1, the elbow rest holder 3 has a predetermined length and is formed on the basis of a base 22 formed of a thermoplastic synthetic resin material containing ABS resin. . A rail-like slide shaft 28 having a predetermined length is provided on the upper side of the base 22. In addition, the linear slide shaft 28 is provided with a slide bush 26 that wraps the slide shaft 28 and that is formed so as to be slidable with the slide shaft 28. It has become. Further, a slider 27 is provided integrally with the slide bush 26 outside the slide bush 26.

Note that a guide portion 271 having a projecting cross-sectional shape is provided along the longitudinal direction of the slider 27 at the lower surface portion of the slider 27, for example, as shown in FIG. It is like that. Then, on the upper surface side of the base 2 provided on the lower side of the slider 27, a concave groove (V in the present embodiment) formed so as to be engaged with the guide portion 271 provided on the slider 27 is provided. Groove) 222 is provided linearly in the longitudinal direction of the base 22. By such engagement of the concave groove 222 and the guide portion 271, the rotational movement of the slider 27 around the axis O ₃ of the slide shaft 28 is restricted, and the elbow rest holder 3 mounted on the slider 27 is restricted. During the operation on the arm assembly 2, the grazing or the like is suppressed. A cylindrical female screw portion 277 is formed on the upper side of the slider 27, and a pivot member 35 that contributes to the attachment of the elbow rest holder 3 is provided at the female screw portion 277. The male screw portion 355 formed in the is engaged.

A cover 23 made of a predetermined thermoplastic synthetic resin material including ABS resin is provided on the base 22 having such a slider 27 and the like, whereby the arm assembly 2 is formed. Yes. Note that an opening 235 for moving the pivot member 35 for attaching the elbow rest holder 3 is formed on the upper surface side of such a cover 23. Accordingly, when the elbow holder 3 is attached to the slider 27 that forms the arm assembly 2, the elbow holder 3 moves in the longitudinal direction on the cover 23 that forms the arm assembly 2. Will be able to. The direction of this movement is a plane (O ₃ ) inclined by a predetermined angle (θ) with respect to a reference plane (O ₂ O _2; see FIG. 4) formed in a direction perpendicular to the hinge pin 121. O ₃ ), and the movement trajectory of the elbow holder 3 forms an ergonomically favorable form.

Next, 2nd embodiment concerning this invention is described based on FIG.2, FIG.5 and FIG.6. This also has the same basic configuration as that of the first embodiment. Specifically, as shown in FIG. 2, a clamp mechanism 1 having a fulcrum formed so as to form a mounting portion to a fixed member and support the rotational movement of other members, and the clamp mechanism 1 is formed. An arm assembly 2 ′ which is attached so as to be capable of rotational motion with a rotational motion fulcrum (O ₁ O ₁ ) as a base point, has a predetermined length, and includes a base arm 231 and a slide arm 232, and the arm The tip of the slide arm forming the assembly 2 ′ is provided on the upper side of the slide arm, and is attached so that the arm assembly 2 ′ can be moved in the longitudinal direction. The elbow rest holder 3 is formed so as to hold a portion of the elbow part 55 as a part.

  As described above, the configuration according to the second embodiment basically has the same configuration as that described in the first embodiment, and the configuration and functions around the clamp mechanism 1 are as follows. It is exactly the same thing. By adopting such a configuration, the attachment portion of the base arm 231 forming the arm assembly 2 ′ to the hinge pin 121 is always lifted upward by the action of the spring 122, and the elbow holder 3 The entire arm assembly 2 ′ is lifted upward along the axis of the hinge pin 121 in response to an input load from the operator's elbow that is input via the arm. As a result, the rotational movement of the arm assembly 2 'is smoothly held. A specific configuration of such an arm assembly 2 ′, particularly a configuration of a relative slide mechanism between the base arm 231 and the slide arm 232 will be described. That is, the structure of this slide portion is first formed based on a thick holding portion 2319 provided at the end portion of the base arm 231 as shown in FIG. A hollow portion is formed at the holding portion 2319, and a cylindrical slide bush 26 is provided at the hollow portion. The slide bush 26 comprises a bearing bush having a ball bearing therein. A slide shaft 28 provided in a slide arm 232 described later is provided on the inner diameter side of the slide bush 26 so as to be capable of relative sliding movement. In addition, a plurality of balls 29 are provided on the circumference of the holding portion 2319 formed at the end portion of the base arm 231 so as to be capable of rotating.

  Next, the slide arm 232 provided so as to be relatively slidable on the base arm 231 configured as described above is basically composed of a member having a predetermined length as shown in FIG. The cross-sectional shape is formed on the basis of a slide arm body having an inverted U-shape. The slide arm body has an inverted U-shaped cross-sectional shape, but a slide shaft 28 having a guide rail shape is integrally provided therein, thereby forming a slide arm 232. It is what has become. Such a slide shaft 28 is always held in a slide bush 26 provided at a holding portion 2319 formed on the end portion of the base arm 231 and the other end side is slid. The arm 232 is integrally held at the end 2329 (see FIG. 6). In addition, this arm assembly 2 'which consists of these structures is also formed by the predetermined thermoplastic synthetic resin material containing ABS resin similarly to the thing concerning said 1st embodiment. .

  Further, for example, as shown in FIG. 6, a thick portion is formed at the end portion 2329 of the slide arm 232 having the above structure, and at the end portion 2329, Similar to the first embodiment, the elbow holder 3 is attached via a pivot member 35 so as to be capable of rotating in a predetermined plane. Specifically, the holder 31 that forms the elbow rest holder 3 can rotate about the pivot member 35 provided at the center of the lower surface side. Then, the slide arm 232 having such an elbow holder 3 at the end 2329 has a plurality of balls installed on the outer surface side (upper surface side) of the base arm 231 as shown in FIG. It rolls on 29 and moves. As a result, the slide arm 232 can slide in the longitudinal direction on the surface of the base arm 231.

  Next, an operation mode of the present arm support device formed on the basis of the arm assemblies 2 and 2 ′ having such a configuration will be described with reference to FIGS. 7 to 9. First, the operation of the mouse 8 by the operator will be described. In this case, as shown in FIG. 7, the operator extends the arm portion 5 forward while placing the elbow portion 55 on the elbow holder 3 as shown in FIG. 9 or the mouse 8 is operated. In this case, since the arm portion 5 is in a state where the elbow portion 55 is held at the elbow rest holder 3, the mouse 8 (see FIG. 8) or the keyboard 9 (see FIG. 7) is operated in this state. The fingertip side is in a posture state that is higher than the elbow part 55 held at the elbow rest holder 3 by a predetermined angle (θ: 2 ° to 5 ° in the present embodiment). Further, when the mouse 8 and the arm portion 5 are moved in the front-rear direction in such a state, the operator's elbow portion 55 moves to the position indicated by the two-dot chain line in FIG. In this case, the operator's arm 5 is held with the elbow rest holder 3 as a base point in a state where a predetermined inclination angle (θ: 2 ° to 5 °) is maintained. Thus, in the present embodiment, the arm 5 of the operator is always held in a state having a predetermined inclination angle (θ), which is ergonomically reasonable for the operator. The operation of the mouse 8 and the like in the touched state will be maintained.

Further, instead of the operation of the mouse 8, when the keyboard 9 is operated as shown in FIG. 7 or 9, the arm 5 of the operator moves to the keyboard 9 side. In such a case, the elbow holder 3 that supports the operator's elbow 55 must be moved. However, in this case, in that of the present embodiment, the arm assembly 2 which is mounted the holder 3 placed above the elbow is to be able to rotational motion in a predetermined plane to the attachment point O ₁ to the fulcrum Therefore, the operator's elbow part 55 moves in the direction of the arrow in FIG. 9, whereby the operation of the operator's keyboard 9 is smoothly advanced.

DESCRIPTION OF SYMBOLS 1 Clamp mechanism 11 Clamp bracket 12 Hinge bracket 121 Hinge pin 122 Spring 15 Mounting bolt 16 Mounting bolt 2 Arm assembly 2 'Arm assembly 21 End part 22 Base 222 Groove 23 Cover 231 Base arm 2319 Holding part 232 Slide arm 2329 End part 235 Opening Part 26 slide bush 27 slider 271 guide part 277 female thread part 28 slide shaft 29 ball 3 elbow holder 31 holder 32 pad holder 33 elbow pad 35 pivot member 355 male screw part 5 arm part 55 elbow part 6 cover 6 'cover 7 Desk 8 Mouse 9 Keyboard

Claims (6)

  A clamp mechanism having a fulcrum formed so as to form a mounting portion to the fixed member and supporting the rotational movement of other members, and a rotational movement based on the rotational movement fulcrum formed in the clamp mechanism. An arm assembly formed by a base and a cover, and mounted on the upper side of the cover forming the arm assembly. And an elbow rest holder that is attached so as to be movable in the longitudinal direction of the arm assembly and is formed so as to hold an elbow portion that is a part of the operator's arm portion. A featured arm support device. A clamp mechanism having a fulcrum formed so as to form a mounting portion to the fixed member and supporting the rotational movement of other members, and a rotational movement based on the rotational movement fulcrum formed in the clamp mechanism. And a base attached to the arm assembly so as to be capable of rotational movement with a rotational movement fulcrum forming the clamp mechanism as a base and having a predetermined inclination angle. An arm and an upper side of the base arm and formed so as to be relatively slidable on the base arm, and a bearing portion provided on one end side of the base arm. as consisting of a slide arm having therein a slide shaft provided so as to enable sliding the place, further, the scan A one end portion side of the Idoamu, characterized in that it has to have elbow holder are formed to hold at the elbow is part of the arm of the operator with provided on its upper side Arm support device.   The arm support device according to claim 1 or 2, wherein the clamp mechanism is provided in a state of being paired with a clamp portion that forms an attachment portion to the fixing member and the clamp portion. And a hinge portion that is rotatably attached via a hinge pin, and at the hinge pin forming the hinge portion, one end side of the arm assembly is an axis of the hinge pin. An arm support device comprising a spring mounted so as to be elastically displaced by a predetermined amount in the core direction.   The arm support device according to claim 1, wherein the arm assembly includes a base having a predetermined length, a slide shaft provided on the base and having a guide rail shape, and the slide shaft. An arm support device comprising: a slider provided so as to be slidable and formed to hold the elbow holder.   5. The arm support device according to claim 4, wherein the slider provided on the slide shaft is attached via a bush. 6. The arm support device according to claim 4 or 5, wherein the slider has a block shape formed so as to be slidable on the slide shaft, and is formed on the base on the lower surface side thereof. An arm support device comprising a protruding guide portion formed so as to engage with the recessed groove and be slidable on the recessed groove.

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