JP4945782B2 - Chair connector - Google Patents

Description

  The present invention relates to a chair connector that connects two chairs adjacent in the width direction.

Conventionally, when connecting two chairs adjacent in the width direction, various chair connecting tools have been used. As such a chair connection tool, for example, two chairs having a leg base are connected, and a pair of connection elements having a semicircular groove that opens upward is provided. Examples include those which are connected by means such as a connecting pin and which house the leg base of the chair in the semicircular groove. (For example, see Patent Documents 1, 2, and 3.)
JP-A-9-220132 Noto 2577072 gazette Japanese Patent No. 3292906

  Thus, in the chair connecting tool such as those described in Patent Documents 1, 2, and 3, the leg base and the connecting tool are screwed, but this screwing step is omitted to connect the chair. There is a desire to make it more convenient. However, if the screwing step is omitted in the configuration of the chair connecting tool described in Patent Document 1, when the two connected chairs are separated from each other, the chair connecting tool is the lower half of the leg base of the chair. Since only the chair is held, the chair is easily detached from the chair connector, and a problem that the connected state of the chair is released occurs. Such defects are not limited to those that are connected to the leg base, and even if they are connected to other parts of the leg, such as leg posts, a part of the leg is engaged in a groove that opens in only one direction. This can occur in the same manner as long as the configurations described in Patent Documents 1, 2, and 3 are adopted.

  The present invention is configured to solve the above-described problems, that is, to connect two chairs more stably.

That is, one of the chair couplers according to the present invention couples two chairs adjacent to each other in the width direction, and opens at least a part of the legs of the first chair toward the second chair side. A first holding unit for holding in the holding space, and a second holding unit for holding at least a part of the legs of the second chair in the holding space opened toward the first chair side, A connecting portion for connecting the first and second holding portions, and when one of the two chairs connected via the chair connecting tool tilts backward, the first and second holding portions are provided. The connecting portion holds the legs of the first and second chairs, and the connecting portion is twisted while maintaining the state where the connecting portion is connected to the first and second holding portions .

Further, another one of the chair couplers according to the present invention connects two chairs that are adjacent to each other in the width direction and have leg bases at the left and right ends, respectively, and the leg base of the first chair. A first holding portion that holds the second base in the holding space opened toward the second chair side, and a leg base of the second chair held in the holding space opened toward the first chair side. When one of the two chairs connected via the chair connector includes a second holding part and a connecting part that connects between the first and second holding parts , The first and second holding portions hold the legs of the first and second chairs, respectively, and the connecting portion keeps connecting the first and second holding portions, while the connecting portion is twisted and deformed. It is characterized by performing .

  If it is such, since the holding space of the first holding part is open toward the second chair side, and the holding space of the second holding part is open toward the first chair side, The first holding part restricts movement of the first chair to the side away from the second chair, and the second holding part restricts movement of the second chair to the side away from the first chair. it can. Therefore, when the two chairs connected by the chair connector are acted in a direction away from each other, the movement of the chair can be effectively restricted by the first and second holding portions, and such It is possible to make it difficult to remove the chair connector.

  As a configuration for preventing one of the two connected chairs from being detached when tilted backward, the connecting portion connects one lower end portion and the other upper end portion of the first and second holding portions. What you are doing. This is because both the first holding part and the second holding part can hold both the upper and lower sides of the leg base.

  Further, as a configuration for preventing one of the two connected chairs from being detached when tilted backward, when the at least part of the first and second holding portions is relatively moved in the vertical direction, the connection portion May be elastically deformed. This is because, when one of the two connected chairs tilts backward, the connecting portion is twisted to absorb the phase difference between the leg bases of the two chairs.

  As a configuration for attaching such a chair coupling tool in a shaky manner, two chairs having the same structure in which grounding bodies are provided in the vicinity of both front and rear ends of the leg base are coupled. The longitudinal dimension is set so that it can be attached between the grounding bodies provided in the vicinity of both front and rear ends of the base without any substantial gap.

  The same structure with elbow pads on both the left and right sides as a configuration to prevent the problem of pinching hands between the chair's elbows as the chair moves when it is mounted between two chairs with the same structure. These two chairs are connected, and in a state where the two chairs are connected, a chair having a width dimension such that a space can be provided between the outer edges of the armrests of the two chairs.

  As a configuration for stably mounting such a chair connector, the first and second holding portions include the holding space and a holding wall that partitions the holding space, and the holding space. The constricted part is provided by bringing the holding wall together at the opening edge of the opening. This is because the constriction part can regulate the detachment from the leg base holding part even when the two chairs approach each other.

  As a structure for enabling easy manufacture of such a chair connector, one having the same cross-sectional shape over the entire longitudinal dimension can be cited. This is because such a chair connector can be manufactured by extrusion molding. Moreover, since the whole can be integrally formed, it is possible to prevent the attachment strength from being lowered at the joint between the parts. Furthermore, if it is made of an elastically deformable material such as resin, when one of the two connected chairs tilts backward, the leg base is held by the first and second holding portions following the backward tilting of the chair. Such a chair connector can be elastically deformed while being left. Furthermore, when attaching to the chair which provided the grounding body in the front-and-rear both ends vicinity of the said leg base, a longitudinal dimension can be easily made to correspond to the distance between the grounding bodies provided in the front-and-rear both ends vicinity of the same leg base.

  According to the chair connector according to the present invention, the holding space of the first holding portion is open toward the second chair side, and the holding space of the second holding portion is open toward the first chair side. The first holding part can restrict the first chair from being separated from the second chair, and the second holding part can restrict the movement of the two chairs in the direction away from each other. Therefore, when the two chairs connected by the chair connector are acted in a direction away from each other, the movement of the chair can be effectively restricted by the first and second holding portions, and such It is possible to make it difficult to remove the chair connector.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  The chair connector 1 according to the present embodiment is adjacent to the width direction as shown in FIG. 1 as a perspective view in an installed state, as shown in FIG. 2 as a perspective view from the bottom side, and as shown in FIG. The first and second chairs Ca and Cb having the installed leg base are connected. The first and second chairs Ca and Cb have the same configuration and shape in the present embodiment, and are configured to be stackable.

  The first chair Ca includes a frame C1a, a seat C2a supported by the frame C1a from below, a backrest C3a supported by the frame C1a from the rear, and left and right 1 supported by the frame C1a. And a pair of elbow pads C4a.

  Specifically, the frame C1a includes a pair of left and right frame elements C11a, a seat support horizontal member C12a that connects the left and right frame elements C11a and supports the front end of the seat C2a, and the left and right frames. A backrest support horizontal member (not shown) for connecting the elements C11a and supporting the backrest C3a from behind is provided. The frame element C11a includes a leg base C111a in which grounding bodies C5a and C5a are provided in the vicinity of both front and rear ends, a front leg C112a provided to stand rearward and upward from the front end of the leg base C111a, and a rear end from the upper end of the front leg C112a. A seat receiving portion C113a that is provided to extend and supports the left and right side edges of the seat C3a, a backrest receiving portion C114a that is provided upright from the rear end of the seat receiving portion C113a, and this backrest receiving portion An elbow rest support portion C115a provided to extend forward from the upper end of C114a and a rear leg C116a extending from the front end of the elbow rest support portion C115a to the rear end of the leg base C111a are integrally provided. On the other hand, the seat support horizontal member C12a connects the vicinity of the front end portion of the seat receiving portion C113a. Further, the backrest supporting horizontal member (not shown) connects between the upper ends of the backrest receiving portions C114a. That is, the frame C1a includes a leg base C111a, a leg having a front leg C112a as a first leg column, and a rear leg C116a as a second leg column, the seat receiving part C113a, and the backrest receiving part C114a, The elbow rest support part C115a is provided integrally. The frame C1a further includes a reinforcing member C13a that connects the upper ends of the left and right front legs C112a. In addition, the width dimension of the frame C1a is increased as it goes downward to enable stacking.

  On the other hand, the seat C2a and the backrest C3a are integrally formed in this embodiment, and as described above, the front end of the seat C2a is supported by the seat support horizontal member C12a of the frame C1a and the backrest is supported. The center part in the height direction of C3a is supported by the back support frame (not shown) of the frame C1a.

  Furthermore, the elbow rest C4a is a substantially plate-like member provided above the elbow rest support section C115a of the frame C1a, and is attached to the elbow rest support section C115a by an appropriate method. C115a is supported from below.

  As described above, the second chair Cb has the same configuration and shape as the first chair Ca. Hereinafter, each part of the second chair is given the same name as that in the first chair, and a reference numeral in which a at the end is changed to b.

  Therefore, in this embodiment, these two chairs Ca and Cb are connected via the chair connector 1 in a state where these two chairs Ca and Cb are adjacent to each other in the width direction.

  1 to 3, the chair connector 1 is a perspective view shown in FIG. 4, a front view shown in FIG. 5, a side view shown in FIG. 6, and a plan view shown in FIG. A first holding portion 21 that holds a leg base C111a of one chair Ca in a holding space 21s that is open toward the second chair Cb side, and a leg base C111b of the second chair Cb that is the first chair. A second holding portion 22 held in the holding space 22s opened toward the Ca side, and a connecting portion 3 connecting the first and second holding portions 21 and 22 are provided. In the present embodiment, the chair connector 1 is formed integrally with resin so as to be elastically deformable, and is formed by extrusion molding, and has the same cross section over the entire longitudinal dimension. Has a shape. And the longitudinal dimension of this chair connector 1 is the same leg base C111a (C111b) so that it can be attached between the grounding bodies C5 and C5 provided in the vicinity of both front and rear ends of the same leg base C111a (C111b) without a substantial gap. ) And the distance between the two grounding bodies C5 and C5 provided in FIG. In FIG. 5, a part of the chairs Ca and Cb is shown by imaginary lines.

  More specifically, the first holding portion 21 includes a cylindrical holding wall 211 having a holding space 21 s opened on the side to be directed to the second chair Cb, and an upper end edge 211 a of the holding wall 211. A first guide portion 212 extended in a direction substantially opposite to the holding space 21s, and a second guide portion 213 extended in a direction substantially opposite to the holding space 21s from the lower end edge 211b of the holding wall 211; The distance between both end edges of the holding wall 211 is made smaller than the diameter of the holding wall 211. That is, the constricted portion 21x is provided between the both end edges of the holding wall 211, which is the opening edge of the holding space 21s, by bringing the holding wall 211 close together.

  The second holding part 22 has substantially the same configuration as the first holding part 21. That is, a cylindrical holding wall 221 having a holding space 22s that is open on the side to be directed to the first chair Ca, and a first extending from the upper end edge 221a of the holding wall 221 in a direction substantially opposite to the holding space 22s. 3 and a fourth guide portion 223 extending from the lower end edge 221b of the holding wall 221 in a direction substantially opposite to the holding space 22s, and the distance between both end edges of the holding wall 221 is It is smaller than the diameter of the holding wall 221. That is, the constricted portion 22x is provided between the both end edge portions of the holding wall 221 that is the opening edge portion of the holding space 22s by bringing the holding wall 221 together.

  The opening width between the first guide portion 212 and the second guide portion 213 is separated from the constricted portion 21x so as to guide the insertion direction of the leg base C111a of the first chair Ca. I try to get bigger. Similarly, the opening width between the third guide part 222 and the fourth guide part 223 is also separated from the constricted part 22x so as to guide the insertion direction of the leg base C111b of the second chair Cb. I try to get bigger. That is, the first guide part 212 and the second guide part 213 function as guide means that guide the insertion direction of the leg base C111a of the first chair Ca in a pair. Similarly, the third guide portion 222 and the fourth guide portion 223 function as guide means that guides the insertion direction of the leg base C111b of the second chair Cb in a pair.

  In the present embodiment, the connecting portion 3 includes a lower end portion of the first holding portion 21, specifically a tip end of the second guide portion 213, and an upper end portion of the second holding portion 22, specifically a third portion. It forms in the shape of a plate which connects the tip of the guide part 222. That is, the cross-sectional shape of the chair connector 1 is formed in a substantially S shape. The width of the connecting portion 3 is such that a space can be provided between the outer edges of the armrests C4a and C4b of the two chairs Ca and Cb in a state where the two chairs Ca and Cb are coupled. Therefore, the width direction position of the outer edge of one leg base C111a, C111b of the first chair Ca or the second chair Cb, and the width of the outer edge of the elbow rest C4a, C4b on the same side as the leg base C111a, C111b. It is set to more than twice the dimension between the direction position.

  The action that the chair connecting portion receives when the two chairs Ca and Cb connected via the chair connector 1 are affected will be described below. First, when the two chairs Ca and Cb are separated from each other, the leg base C111a of the first chair Ca moves the holding wall 211 of the first holding unit 21 to the second chair Cb. The leg base C111b presses the holding wall 221 of the second holding part 22 outward. However, since the holding walls 211 and 221 are in contact with the entire outer edges of the leg bases C111a and C111b, the movement of the two chairs Ca and Cb in a direction away from each other is restricted by the holding walls 211 and 221. The In addition, since a part of the action received by the holding walls 211 and 221 is converted into an action of extending the connecting portion 3 in the width direction, the chair connector 1 does not concentrate stress on one part of the holding walls 211 and 221. Thus, the state where the two chairs Ca and Cb are connected can be maintained.

  When one of the two chairs Ca and Cb connected via the chair connector 1 tilts backward, the front end of one of the first or second holding portions 21 and 22 is upward. Move to. However, as the front view in this state is shown in FIG. 8, the chair connector 1 is entirely formed of a resin so as to be elastically deformable, so that the connecting portion 3 includes the first and second holding portions. The torsional deformation is performed while maintaining the state where 21 and 22 are connected. And when the backward inclination of one of the chairs Ca and Cb ends, the connecting portion 3 returns to its original shape by the elastic restoring force.

  As described above, the chair connector 1 according to the present embodiment holds the leg base C111 of the first chair Ca in the holding space 21s opened toward the second chair Cb side. The holding part 21, the second holding part 22 for holding the leg base C111 of the second chair Cb in the holding space 22s opened toward the first chair Ca side, and the first and second holdings. Since the connection part 3 which connects between the parts 21 and 22 is comprised, the movement to the side which 1st chair Ca separates from the 2nd chair Cb by the said 1st holding | maintenance part 21, said 2nd holding | maintenance part 22, the movement of the second chair Cb toward the side away from the first chair Ca can be restricted. Therefore, when the two chairs Ca and Cb connected by the chair connector 1 are acted in the direction of separating, the movement of the chairs Ca and Cb is effectively performed by the first and second holding portions 21 and 22. While being able to regulate, it is difficult to detach such a chair connector 1.

  The connecting portion 3 connects the second guide portion 213 located at the lower end portion of the first holding portion 21 and the third guide portion 222 located at the upper end portion of the second holding portion 22. Therefore, both the first holding part 21 and the second holding part 22 can hold both the upper and lower sides of the leg bases C111a and C111b, and one of the connected first and second chairs Ca and Cb is rear. It is possible to make it difficult to remove such a chair connector 1 when tilted.

  Further, when at least a part of the first and second holding portions 21 and 22 are relatively moved in the vertical direction, the connecting portion 3 is elastically deformed, so that the two connected chairs Ca and Cb When one of the two chairs tilts backward, the connecting portion 3 twists to absorb the phase difference between the leg bases C111 of the two chairs C, and the chair coupling tool 1 when one of the two chairs Ca and Cb that are linked tilts backward. Detachment can be further prevented.

  In addition, since the longitudinal dimension of the chair connector 1 is set so that it can be attached between the grounding bodies C5a, C5a (C5b, C5b) provided in the vicinity of both front and rear ends of the same leg base C111a (C111b) without a substantial gap. Such a chair connector 1 can be attached with no gap between the first and second chairs Ca and Cb having the same structure.

  In addition, the chair connector 1 is configured such that two chairs Ca and Cb having the same structure having elbow pads C4a and C4b on both the left and right sides are connected to the outside of the armrest pads C4a and C4b of the two chairs Ca and Cb. Since the width dimension is such that a space can be provided between the edges, a hand is sandwiched between the armrests C4a and C4b of the two chairs Ca and Cb as the two chairs Ca and Cb move in the direction in which they meet. Can be prevented.

  Furthermore, the first and second holding portions 21 and 22 respectively include the holding spaces 21s and 22s and holding walls 211 and 221 that partition the holding spaces 21s and 22s, respectively, and the holding spaces 21s and 22s, Since the constricted portion is provided by bringing the holding walls 211 and 221 close to each other at the opening edge of 22 s, the leg base C111a, Detachment of the C111b from the holding portions 21 and 22 can be restricted, and such a chair connector 1 can be attached more stably.

  And since it has the same cross-sectional shape over the whole area of a longitudinal dimension, such a chair coupling tool 1 can be manufactured easily by extrusion molding. Moreover, since the whole can be integrally formed, it is possible to prevent the attachment strength from being lowered at the joint portion between the parts and to improve the connection strength. Furthermore, since it is made of an elastically deformable material such as resin, when one of the two connected chairs Ca and Cb tilts backward, the first and second are caused to follow the backward tilt of the chairs Ca and Cb. The chair connector 1 can be elastically deformed while the leg bases C111a and C111b are held by the holding portions 21 and 22. In addition, the longitudinal dimension can easily correspond to the distance between the grounding bodies C5a and C5a (C5b and C5b) provided near both front and rear ends of the same leg base C111a and C111b.

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

  For example, you may comprise a connection part so that the upper ends of the 1st and 2nd holding | maintenance part may be connected.

  Moreover, it is not necessary to provide a connection part over the whole longitudinal dimension of a chair coupling tool, and you may provide the connection part which connects the predetermined places of a 1st and 2nd holding | maintenance part intermittently in multiple places.

  Furthermore, when three or more grounding bodies are provided on the leg base of the chair and the chairs having a symmetrical shape are connected to each other, the longitudinal dimension of the chair connector is set in accordance with the distance between the two adjacent grounding bodies. Even if set, it is possible to attach such a chair connector without any hesitation. In this case, of course, you may provide a chair coupling tool in two or more places.

  In addition, in the embodiment described above, the two chairs Ca and Cb having the elbow pads are connected by the chair connector 1, but of course, two chairs having no elbow pads may be connected by such chair connectors. .

  Further, in the above-described embodiment, the entire chair connector 1 is integrally formed of resin. However, if the connecting portion can be elastically deformed even if formed by spring steel or the like, the chair connector 1 described above is used. The same effect as the thing is acquired.

  Furthermore, you may connect the chair which has a leg in both right-and-left both ends by hold | maintaining a part other than the leg base of a leg, or the whole leg to a 1st and 2nd holding | maintenance part. For example, the rear leg C116a as the leg column of the first chair Ca described above in the first holding part 21 of the chair connector 1 in the above-described embodiment, and the leg of the second chair Cb described in the second holding part 22 are used. The first and second chairs Ca and Cb may be connected by holding the rear leg C116b as a support. Moreover, the front leg C112a as the leg strut of the first chair Ca described above in the first holding portion 21 of the chair connector 1 in the embodiment described above, and the leg strut of the second chair Cb described above in the second holding portion 22. The first and second chairs Ca and Cb may be connected by holding the front legs C112b. In addition, when the chairs configured to support the four corners of the seat by the four legs standing from the ground surface are arranged adjacent to each other in the width direction, one of the first and second holding portions is provided on one side. Of course, two chairs may be connected by holding the leg of the chair and the leg of the other chair.

  And even if it is a case where three or more chairs are arranged adjacent to each other in the width direction, two chairs that are directly adjacent to each other may be connected by the chair connector according to the present embodiment.

  In addition, various modifications can be made without departing from the spirit of the present invention.

The perspective view which shows two chairs connected by the chair connector which concerns on one Embodiment of this invention. The bottom perspective view showing two chairs connected by the chair connector according to the embodiment. The top view which shows the principal part of the two chairs connected by the chair connector according to the embodiment. The perspective view which shows the chair coupling tool which concerns on the same embodiment. The front view which shows the chair coupling tool which concerns on the same embodiment. The side view which shows the chair coupling tool which concerns on the same embodiment. The top view which shows the chair coupling tool which concerns on the same embodiment. The cross-sectional view which shows the chair connector when one of the two chairs connected by the chair connector according to the embodiment is tilted backward.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Chair coupling tool 21 ... 1st holding | maintenance part 22 ... 2nd holding | maintenance part 21s, 22s ... Holding space 3 ... Connection part Ca, Cb ... Chair C111a, C111b ... Leg base

Claims (8)

A holding space for connecting two chairs adjacent to each other in the width direction and having legs at both left and right ends, wherein at least a part of the legs of the first chair is open toward the second chair side. A first holding part for holding in the first holding part, a second holding part for holding at least a part of the leg of the second chair in a holding space opened toward the first chair side, and A connecting portion that connects between the second holding portions, and when one of the two chairs connected via the chair connector tilts backward, the first and second holding portions are the first. And the chair coupling tool characterized by hold | maintaining the leg of a 2nd chair, and the said connection part torsionally deforming, maintaining the state which the connection part connected the said 1st and 2nd holding | maintenance part . Two chairs which are adjacent to each other in the width direction and have leg bases at both right and left ends are connected to each other in a holding space opened with the leg base of the first chair facing the second chair side. A first holding unit for holding, a second holding unit for holding the leg base of the second chair in a holding space opened toward the first chair, and the first and second holding units. And when one of the two chairs connected via the chair connector tilts backward, the first and second holding parts are the first and second chairs. Each of the leg bases is held, and the connecting portion performs torsional deformation while maintaining the state where the connecting portion connects the first and second holding portions . The chair connecting tool according to claim 1 or 2, wherein the connecting portion connects one lower end portion and the other upper end portion of the first and second holding portions. 4. The chair connector according to claim 1, wherein the connecting portion is elastically deformed when at least a part of the first and second holding portions is relatively moved in the vertical direction. Two chairs having the same structure provided with grounding bodies in the vicinity of both front and rear ends of the leg base are connected to each other. The chair connector according to claim 1, 2, 3, or 4, wherein dimensions are set. It connects two chairs of the same structure each having an armrest on each of the left and right sides, and in a state where the two chairs are connected, a space can be provided between the outer edges of the armrests of these two chairs. The chair connector according to claim 1, 2, 3, 4 or 5, characterized by having a width dimension of The first and second holding portions have the holding space and a holding wall that divides the holding space, and a constricted portion is provided by bringing the holding wall close to the opening edge of the holding space. The chair connector according to claim 1, 2, 3, 4, 5, or 6. The chair connector according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the chair connector has the same cross-sectional shape over the entire longitudinal dimension.

Images