JP2013102794A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair which fulfills a demand for sliding a memo stand body without causing problems such as deterioration in user-friendliness since the memo stand body unexpectedly slides due to an accidental external force in use.SOLUTION: The chair includes: a chair body 2; and a memo stand 3 which causes the chair body 2 to support the memo stand body through a holding mechanism 7. The holding mechanism 7 can operate the memo stand body between a usage posture and a storage posture using the rotating motion and a sliding motion of the memo stand body, and includes a slide restriction mechanism 9 for restricting the sliding motion of the memo stand body in the usage posture at a desired sliding posture.

Description

  The present invention relates to a chair provided with a memo stand.

  Conventionally, a chair comprising a chair main body and a memo stand that is supported by the chair main body via a holding mechanism, wherein the holding mechanism uses at least the rotational movement of the memo base main body. And what is comprised so that the said memo stand main body can be operated between a horizontal use attitude | position and the stowed stowing attitude | position is known (for example, refer patent document 1).

  In such a chair, there is a desire to slide the memo stand main body in the use posture in the front-rear direction according to the physique of the user. However, if the memo stand main body is simply slidable, the memo stand main body will slide unexpectedly due to an unexpected external force during use, and it is expected to cause a problem that the usability is impaired.

JP-A-7-184737

  An object of this invention is to provide the chair which can solve the request | requirement of moving a memo stand main body without causing generation | occurrence | production of the malfunction mentioned above.

  The present invention employs the following configuration in order to solve the above-described problems. That is, the chair according to the present invention is a chair comprising a chair main body and a memo stand that supports the memo stand main body via the holding mechanism on the chair main body, and the holding mechanism includes the memo stand. The memo stand main body can be operated between the use posture and the retracted posture by using the rotation operation and the slide operation of the main body, and the memo stand main body in the use posture can be moved at a desired slide position. A slide restriction mechanism for restricting the slide operation is provided.

  Here, the “storing posture” means both a standing state in which the memo stand body stands substantially vertically above the holding mechanism and a suspended state in which the memo base body hangs substantially vertically below the holding mechanism. It is a concept that includes

  If this is the case, the memo stand itself will slide unintentionally due to unexpected external forces during use, and there is a desire to slide the memo stand without causing a problem that impairs usability. Can be solved.

  The chair body is provided with a memo stand support frame, and the holding mechanism is rotatable and slidable with respect to the memo stand support frame in response to the rotation operation and the slide operation of the memo stand body. The slide restricting mechanism includes a protrusion provided on one of the first structure and the memo stand support frame, and a predetermined slide provided on the other. It is preferable to include an engaging member that engages with the protrusion at a position to limit the sliding operation of the memo stand main body.

  As a preferred embodiment of the slide limiting mechanism, there is one that limits the sliding operation at a plurality of slide positions or a single slide position that is intermittently set in advance on the memo stand main body.

  Further, as another preferred aspect of the slide limiting mechanism, there is one that limits the sliding operation at an arbitrary slide position within a region in which the memo stand main body is set continuously in advance.

  As a specific example, the chair body is provided with a memo stand support frame, and the protrusion is provided on the first structure body, and is accompanied with a rotation operation and a slide operation of the first structure body. And the engagement member is provided on the memo stand support frame and includes a plurality of or single recesses with which the protrusions are detachably engaged.

  As another specific example, the chair body is provided with a memo stand support frame, and the slide limiting mechanism is provided in the memo stand support frame and the first structure, and in the use posture. Examples include a pair of friction surfaces that are in contact with each other and restrict the sliding operation of the memo stand main body by friction.

  Since the present invention is configured as described above, the memo stand main body slides unexpectedly due to unexpected external force during use, and the memo stand main body is slid without causing the occurrence of a malfunction that impairs usability. A chair that can solve the desire to move can be provided.

The perspective view of the chair of a 1st embodiment of the present invention. The front view of the chair concerning the embodiment. The side view of the chair which made the memo stand main body concerning the embodiment the use attitude | position. The top view of the chair concerning the embodiment. The side view of the chair which made the memo stand main body concerning the embodiment the standing posture. The side view of the chair which made the memo stand main body concerning the embodiment into the storing attitude | position. The perspective view which expands and shows the principal part of the chair concerning the embodiment. Action explanatory drawing shown in the XX sectional view in FIG. Action explanatory drawing shown in the XX sectional view in FIG. Action explanatory drawing shown in the XX sectional view in FIG. The figure which shows the stacking method of the chair concerning the embodiment. The perspective view which shows the modification of the slide restriction | limiting mechanism of this invention. The perspective view which shows the modification of the slide restriction | limiting mechanism of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, as shown in FIG. 11, the present invention is applied to a chair 1 that can be stacked in the front-rear direction, in other words, a chair 1 that can be nested in the horizontal direction. 2 and a memo stand 3 that supports a memo stand main body 8 through a holding mechanism 7. The chair 1 according to the present embodiment has the same structure by holding the seat plate 5 in the flip-up position (J) and storing the memo stand body 8 in the retracted position (C) when stored. It is configured to be able to accommodate many chairs 1 in a small space in the front-rear direction close to other chairs 1 ′.

  As shown in FIGS. 1 to 11, the chair body 2 is configured by supporting a seat plate 5 and a back plate 6 on a frame structure 4, and more specifically, a seat support frame 46 that supports the seat plate 5. And the seat plate 5 is rotated between the seat use position (U) and the seat flip-up position (J) via the shaft 461 of the seat support frame 46. It can be moved. Further, the chair body 2 includes a memo stand support frame 48, and the memo stand body 8 is supported by the memo stand support frame 48 via the holding mechanism 7.

  As shown in FIGS. 1 to 11, the frame structure 4 is mainly composed of a metal pipe material. The frame structure 4 includes left and right front legs 41 having casters 411 at the lower ends, left and right rear legs 42 having casters 421 at the lower ends, and left and right front legs 41 connecting the upper ends of the rear legs 42 and the upper ends of the front legs 41, respectively. A side frame 43, a front frame 44 that is spanned between the vicinity of the front ends of the left and right side frames 43, and connects both side frames 43, and a frame that is spanned between the vicinity of the rear ends of the left and right side frames 43 A rear frame 45 to be coupled, a seat support frame 46 rotatably supported by the rear frame 45, and left and right back frames 47 extending upward from the upper end of the rear leg 42 are provided. The memo stand support frame 48 is provided with the base end portion 480 supported by the rear leg 42 and the side frame 43 on one side. The tip 481 side of the memo stand support frame 48 is cantilever extended obliquely upward so as not to disturb the nesting. The memo stand support frame 48 includes a frame main body 482 made of a metal pipe material, and a guide member 483 made of synthetic resin for reducing friction attached to the outer periphery of the tip 481 of the frame main body 482.

  Since the distance between the left and right front legs 41, that is, the width dimension is set smaller than the distance between the left and right rear legs 42, nesting with other chairs 1 ′ having the same structure with the seat plate 5 flipped up. It is possible. That is, by moving the chair 1 and the other chair 1 ′ behind the chair 1 in a mutually approaching direction, first, the left and right of the other chair 1 ′ are placed inside the left and right rear legs 42 of the chair 1. By passing the front leg 41 of the chair 1 and then moving it further, the rear part of the front leg 41 in the chair 1 and the front part of the front leg 41 in the chair 1 are positioned so as to face each other, so that the chair 1 and the other chair 1 'Nesting with is possible. The memo base body 8 is supported so that the front end 81 side is positioned on the inner side of the rear end 82 side in the retracted posture (C). Part of the memo stand main body 8 of the chair 1 ′ overlaps. In addition, about each part of other chair 1 ', the same code | symbol as chair 1 is attached | subjected and detailed description is abbreviate | omitted.

  The memo stand 3 is attached to the memo stand support frame 48 of the chair body 2 as described above.

  As shown in FIGS. 1 to 11, the memo stand 3 is obtained by supporting the memo stand main body 8 via the holding mechanism 7 on the memo stand support frame 48.

  As shown in FIGS. 1 to 11, the holding mechanism 7 uses the rotating operation and sliding operation of the memo stand main body 8 to move the memo stand main body 8 between the use posture (A) and the storage posture (C). It is configured to be actuated, and includes a slide limiting mechanism 9 that limits the sliding operation of the memo stand body 8 in the use posture (A) at a desired slide position. More specifically, the holding mechanism 7 can rotate around the axis 484 of the memo stand support frame 48 on the outer periphery of the guide member 483 of the memo stand support frame 48 and can slide in the direction of the axis 484. An exterior first structure 71 and a second structure 72 attached to the first structure 71 so as to be rotatable around a second axis 721 perpendicular to the axis 484. The memo base body 8 is attached to the second structure 72. FIG. 8 is a view showing a cross section cut along the line XX including a protrusion 91 described later in a state where the memo stand body 8 in the use posture (A) is farthest from the user side. 9 is a view showing a state in which the memo stand main body 8 is lifted from the state shown in FIG. 8 to a state in which the memo stand main body 8 can be slid in the front-rear direction. FIG. It is the figure which showed the state bounced up to B).

  As shown in FIGS. 1 to 11, the first structure 71 includes a sheet metal base 711 and a sheet metal bracket for rotatably and slidably supporting the base 711 on the memo stand support frame 48. 712 and a synthetic resin spacer 713 that is disposed inside the bracket 712 and fills the gap between the base 711 and the memo stand support frame 48. The base 711 has a flat plate shape and has female screw holes 715 at a plurality of locations. The bracket 712 includes a bracket main body 716 that holds the outer periphery of the guide member 483 of the memo stand support frame 48, and an attachment portion 717 for attaching the bracket main body 716 to the base 711. The bracket main body 716 and the mounting portion 717 are integrally formed by molding a sheet metal material, and by screwing a bolt 714 penetrating the mounting portion 717 into the female screw hole 715 of the base 711, A bracket 712 is fixed to the base 711.

  As shown in FIGS. 1 to 3 and FIGS. 5 to 11, the second structure 72 is a flat plate that is pivotally attached to the first structure 71. The memo stand main body 8 is attached to the outer surface using screws 722. The memo stand main body 8 can be moved from the use posture (A) to the retracted posture (C) through the standing posture (B). That is, the flip-up operation of the memo stand main body 8 from the use posture (A) to the standing posture (B) is such that the first structure 71 moves around the axis 484 of the memo stand support frame 48 with respect to the memo stand support frame 48. This is realized by pivoting. In the storing operation of the memo stand main body 8 from the standing posture (B) to the retracted posture (C), the second structure 72 supporting the memo stand main body 8 has the second axial center with respect to the first structure 71. It is realized by rotating around 721.

  The slide limiting mechanism 9 of the holding mechanism 7 is engaged with the projection 91 provided on the first structure 71 and the projection 91 provided on the memo stand support frame 48 at a predetermined slide position. And an engaging member 92 that restricts the sliding motion. That is, the slide restriction mechanism 9 in this embodiment restricts the slide operation at a plurality of slide positions set in advance intermittently. More specifically, the protrusion 91 is provided on the mounting portion 717 of the bracket 712 of the first structure 71 and operates in accordance with the rotation operation and the slide operation of the first structure 71. . The projection 91 is cylindrical and is fastened to the first structure 71 by being fastened together with one of the bolts 714 for attaching the bracket 712 to the base 711. The protrusion 91 also plays a role for holding the memo base body 8 in the use posture (A). The engaging member 92 includes a plurality of recessed portions 93 provided on the memo stand support frame 8 and with which the protrusions 91 are detachably engaged. More specifically, the engagement member 92 is supported by the memo stand support frame 48 along the axis 484, and is formed by bending and deforming a metal wire. Is attached to the memo stand support frame 48 by welding or the like. The recessed portion 93 is formed by bending and deforming the metal wire material in the vertical direction, and a plurality of the recessed portions 93 are provided at predetermined intervals in the axial center 484 direction. In addition, the other part of the bracket body 716 is provided with a standing support protrusion 73 for holding the memo stand body 8 in the standing posture (B).

  Next, the operation of the chair 1 will be described.

  First, when the memo stand main body 8 is positioned in the use posture (A), as shown in the solid line of FIG. 3 and FIG. Further, the downward rotation of the memo base body 8 is prohibited. That is, the memo stand main body 8 is maintained in a horizontal use posture (A). As shown in FIGS. 5 and 10, when the memo stand body 8 is flipped up from the use posture (A) to the standing posture (B), the erection maintaining protrusion 73 comes into contact with the lower surface 98 of the engaging member 92, Further rotation of the main body 8 is prohibited. When the memo stand main body 8 is urged rearward from the standing posture (B), the memo stand main body 8 rotates about 180 degrees around the second axis 721, and as shown in FIG. To. In the retracted posture (C), the nesting described above becomes possible. Further, by performing an operation opposite to the above operation, the memo stand main body 8 can be returned from the retracted posture (C) to the use posture (A) through the standing posture (B).

  In this use posture (A), when it is desired to change the position of the memo base body 8 in the front-rear direction, as shown in FIG. 7, the memo base body 8 is slightly lifted to remove the protrusion 91 from the specific recess 93, The memo stand main body 8 is slid and moved. Then, as shown in FIG. 8, when the posture is returned to the use posture (A) at a desired slide position, the projection 91 engages with the other recessed portion 93 and can be used in a state where it cannot slide back and forth. .

  As described above, the chair 1 according to the present embodiment includes the chair main body 2 and the memo base 3 in which the memo base main body 8 is supported by the chair main body 2 via the holding mechanism 7. The holding mechanism 7 can operate the memo stand main body 8 between the use posture (A) and the retracted posture (C) by using the rotation operation and the slide operation of the memo stand main body 8. The memo stand main body 8 in the use posture (A) is provided with a slide restricting mechanism 9 that restricts the sliding operation at a desired slide position. 8 can slide against the user's intention, and can meet the demand for sliding the memo stand body 8 in the use posture (A) in the front-rear direction while preventing the occurrence of the problem of impairing usability.

  The chair body 2 includes a memo stand support frame 48, and the holding mechanism 7 rotates with respect to the memo stand support frame 48 in response to the rotation operation and the slide operation of the memo stand body 8. The first structure 71 supported so as to be slidable and slidable is provided, and the slide limiting mechanism 9 is provided on the protrusion 91 provided on the first structure 71 and the memo stand support frame 48. Since the engaging member 92 that engages with the protrusion 91 at a predetermined sliding position and restricts the sliding operation of the memo base body 8 is provided, the sliding restriction mechanism 9 can be realized with a simple structure. In particular, since the protrusions 91 of the present embodiment are made of synthetic resin, generation of metal sound can be prevented when engaging with the metal engagement member 92. Further, since the dimension in the front-rear direction of the protrusion 91 and the dimension in the front-rear direction of each recessed part 93 of the engaging member 92 are set to be substantially the same, the protrusion 91 is engaged with the recessed part 93 of the engaging member 92 It is possible to prevent backlash in the front-rear direction when combined.

  Since the slide restriction mechanism 9 restricts the slide operation at a plurality of slide positions set in advance intermittently on the memo stand main body 8, the user can set an arbitrary slide position according to preference, physique or the like. You can choose.

  The chair body 2 is provided with a memo stand support frame 48, and the protrusion 91 is provided on the first structure 71 and operates in accordance with the rotation operation and the slide operation of the first structure 71. The engaging member 92 includes a plurality of recessed portions 93 provided on the memo stand support frame 48 and detachably engaged with the projection 91, so that the memo stand body 8 is rotated. The protrusion 91 can be engaged with or released from the recessed portion 93 by utilizing the movement to be operated. In particular, in this embodiment, since the recessed portion 93 is formed only by bending the metal wire, the weight of the engaging member 92 supported by the memo stand support frame 48 can be made relatively light. Since the engaging member 92 is protruded like a cantilever from the memo stand support frame 48, it can be made to move up and down even when an excessive force is applied. Further, since most of the engaging member 92 is disposed substantially parallel to the memo stand support frame 48, the memo stand body 8 is moved to the retracted position (C) and the memo stand 3 is not used. However, the engaging member 92 is unlikely to disturb the user.

  The present invention is not limited to the embodiment described above.

  The chair of the present invention is not limited to the one that rotates around the two axis centers in which the memo stand body is accommodated in the retracted posture, but only around the single axis in which the memo stand body is accommodated in the standing position. The rotation operation may be performed.

  The slide limiting mechanism is not limited to that of the above-described embodiment, and various changes can be made. For example, a lever-like lock device provided between the chair main body and the memo stand main body can be considered. That is, an operating force may be applied to the lock device from the outside to limit the sliding operation of the memo stand main body in the use posture. Further, the slide limiting mechanism may include a protrusion provided on the memo stand support frame and an engaging member provided on the first structure. If the protrusion is provided on the memo base body or the second structure that is non-rotatably attached to the memo base body, not only restricts the sliding movement of the memo base body in the use posture, The rotational movement around the second axis of the memo stand main body can also be restricted. Therefore, it is effective for a chair provided with a memo stand body that rotates about two axes as in this embodiment.

  Further, the number and shape of the recessed portions of the engaging member can be variously changed. For example, the engaging member has a plurality of recessed portions as shown in FIG. 12, or has a single recessed portion (not shown). It may be. In FIG. 12, the protrusion 91 is constituted by a pin provided integrally with the bracket body 716 of the bracket 712. In addition, the same code | symbol is attached | subjected to the location similar to the said embodiment, and detailed description is abbreviate | omitted.

  As shown in FIG. 13, the slide limiting mechanism 9 may limit the sliding operation at an arbitrary slide position within a region where the memo stand main body 8 is set continuously in advance. In FIG. 13, the chair body 2 is provided with a memo stand support frame 48, and the slide limiting mechanism 9 is provided on the memo stand support frame 48 and the first structure 71. A pair of friction surfaces 99 and 90 are provided that come into contact with each other in the use posture (A) and limit the sliding operation of the memo base body 8 by friction. In this modification, the friction surface 99 is formed on the upper surface of the engaging member 92 in the front-rear direction, and the friction surface 90 is formed on the downward surface of the protrusion 91.

  The slide limiting mechanism is not limited to the protrusion and the engaging member described above, and can be variously changed. For example, the gap between the memo stand support frame and the flip-up restricting portion may not be formed, and as another example, the slide restricting mechanism includes a protrusion and a plate-like engagement member. It may be provided. As the recessed portion at that time, a notch provided in a plate-like engagement member, a hole penetrating in the vertical direction, or the like can be considered.

  The direction of the sliding movement of the memo stand main body is not limited to the front-rear direction of the chair, and may move in the left-right direction or the diagonal direction.

  In addition, various changes may be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Chair 2 ... Chair main body 3 ... Memo stand 48 ... Memo stand support frame 7 ... Holding mechanism 71 ... First structure 8 ... Memo stand main body (A) ... Use posture (C) ... Storage posture 9 ... Slide restriction mechanism 91 ... Projection 92 ... Engagement member 93 ... Depression 99, 90 ... Friction surface

Claims (6)

A chair comprising a chair body and a memo stand that is supported by the chair body via a holding mechanism, wherein the holding mechanism uses a rotating operation and a sliding operation of the memo stand body. The memo stand main body is configured to be operated between the use posture and the retracted posture, and a slide restricting mechanism for restricting the slide operation of the memo stand main body in the use posture at a desired slide position is provided. A chair characterized by having. The chair body is provided with a memo stand support frame, and the holding mechanism is rotatable and slidable with respect to the memo stand support frame in response to the rotation operation and the slide operation of the memo stand body. The slide restricting mechanism includes a protrusion provided on one of the first structure and the memo stand support frame, and a predetermined slide provided on the other. The chair according to claim 1, further comprising an engaging member that engages with the protrusion at a position to limit a sliding operation of the memo stand main body. The chair according to claim 1 or 2, wherein the slide restricting mechanism restricts a sliding operation at a plurality of slide positions or a single slide position in which the memo stand main body is intermittently set in advance. The chair according to claim 1 or 2, wherein the slide restriction mechanism restricts a slide operation at an arbitrary slide position within a region in which the memo stand main body is continuously set in advance. The chair body is provided with a memo stand support frame, and the protrusion is provided on the first structure and operates in accordance with the rotation operation and the slide operation of the first structure, The chair according to claim 3, wherein the engaging member includes a plurality of or single recessed portions that are provided on the memo stand support frame and in which the protrusions are detachably engaged. The chair body is provided with a memo stand support frame, and the slide restriction mechanism is provided on the memo stand support frame and the first structure, and is in contact with the use posture and slides on the memo stand body. The chair according to claim 4, further comprising a pair of friction surfaces that limit friction by friction.

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