furniture

Abstract

To eliminate low workability, for example, when a mounting component is mounted in an inclined attitude on a base structure.SOLUTION: A store fixture 1 comprises a base structure 3 and a mounting component 2 for being mounted on the base structure. The base structure 3 and the mounting component 2 are connected together by an engagement method in which they are fitted to each other so that disconnection from each other and mutual misalignment can be regulated, by two-stage movement in which the mounting component 2 is moved with respect to the base structure 3 in a second direction crossing a first direction after being moved in the first direction facing the base structure 3.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a fixture having a base structure and an attachment part attached to the base structure. [Background technology]

[0002] As a technique for attaching a top plate to a base structure such as a sleeve or a leg, the applicant of the present application has previously disclosed in Patent Document 1 a configuration in which a locking claw provided at the rear of the bottom surface of the top plate is inserted from the front diagonally to engage with a locking edge formed at the rear of the top surface of the base structure, and then a synthetic resin fastener provided at the front of the bottom surface of the top plate is dropped into a locking hole formed at the front of the top surface of the base structure to elastically engage the locking claw. The configuration of Patent Document 1 has the advantage of allowing the top plate to be easily attached to the base structure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3472423 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration of Patent Document 1, in order to engage the locking claws of the top plate with the locking edges of the base structure, the top plate is placed in an inclined position with the back side higher, so that when attaching a top plate having a shelf or the like on the back side to a base structure installed against a wall, there is a concern that there is no space on the back side (wall side) and the shelf or the top plate will rub against the wall and cause damage. Such problems can occur not only when attaching a top plate to the base structure, but also when attaching various attachment parts such as a seat to the base structure. [Means for solving the problem]

[0005] The present invention has as its technical object the provision of fixtures which have been improved upon by examining the current situation as described above.

[0006] The present invention is a fixture comprising a base structure and mounting parts attached to the base structure, and the base structure and the mounting parts are connected in a two-stage engagement manner in which the mounting parts are moved relative to the base structure in a first direction opposite the base structure and then moved in a second direction intersecting the first direction, so that they fit together to prevent slipping or shifting from each other.

[0007] In the fixture of the present invention, the engagement method is constituted by a locking hole formed in either the base structure or the mounting part, and a locking member or locking claw provided on the other, and the locking member has a slip-prevention claw portion that hooks onto and locks onto the edge of the locking hole, a slip-prevention piece portion that is biased in a direction to fit into the locking hole, and a release operation portion that operates the slip-prevention piece portion in a direction to release it from the locking hole, and the base structure and the mounting part are connected by the slip-prevention piece portion fitting into the locking hole when the slip-prevention claw portion hooks onto and locks onto the edge of the locking hole, the four engaging holes used when mounting the mounting component to the base structure are arranged at four corners of a square in a plan view with respect to the base structure or the mounting component, The release operation portion of the locking member is located between the base structure and the mounting component.

[0009] In the fixture of the present invention, the locking member is provided on the front side in the second direction in either the base structure or the mounting part, while the locking member is provided on the rear side in the second direction. The above A locking claw may be provided. Effect of the Invention

[0010] According to the present invention, when attaching a mounting part having an attachment to a base structure installed against a wall, for example, it is not necessary to hold the mounting part at an angle as in the conventional technology, and there is no risk of the mounting part rubbing against the wall and damaging it even if there is no space on the wall side. In other words, the assembly work of the fixture can be performed without damaging the surrounding objects or the mounting part. In addition, since the physical labor of holding the mounting part at an angle as in the conventional technology can be eliminated, the workability of the assembly work of the fixture is improved. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a chair device as furniture according to the present invention. [Diagram 2] FIG. 2 is a perspective view of the mounting component and the base structure; [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 4 is a plan view showing the mounting components and the base structure separated from each other; [Figure 6] 5A to 5G are explanatory diagrams of the base and the anti-pullout claw portion of the locking member, where (a) is a plan view, (b) is a front view, (c) is a bottom view, (d) is a left side view, (e) is a right side view, (f) is a cross-sectional view taken along line ff of (a), and (g) is a cross-sectional view taken along line gg of (a). [Figure 7] 5A to 5E are explanatory views of a slip prevention piece in a locking member, where (a) is a front view, (b) is a rear view, (c) is a plan view, (d) is a right side view, and (e) is a cross-sectional view taken along the line ee of (a). [Figure 8] 5A and 5B are explanatory views of a release operation portion of a locking member, in which (a) is a plan view and (b) is a cross-sectional view taken along line bb of (a). [Figure 9] 1A to 1F are explanatory views of a locking claw, in which (a) is a plan view, (b) is a front view, (c) is a bottom view, (d) is a left side view, (e) is a right side view, and (f) is a cross-sectional view taken along line ff of (a). [Figure 10] 5(a) to 5(c) are explanatory views showing a procedure for engaging the locking member with the locking hole. [Figure 11]13(d) to 13(f) are explanatory views showing a procedure for engaging the locking claws with the locking holes. [Figure 12] 6(a) to 6(c) are explanatory views showing a procedure for releasing the engagement of the locking member with the locking hole. [Figure 13] FIG. 11 is an exploded perspective view of a locking member according to a second embodiment. [Figure 14] 5(a) to 5(c) are explanatory views showing a procedure for engaging the locking member with the locking hole. [Figure 15] 13(d) to 13(f) are explanatory views showing a procedure for engaging the locking claws with the locking holes. [Figure 16] 6(a) to 6(c) are explanatory views showing a procedure for releasing the engagement of the locking member with the locking hole. [Figure 17] FIG. 1 is a perspective view showing an example of an L-shaped chair device. [Figure 18] FIG. 2 is a separated perspective view of an attachment part and a base structure in an L-shaped chair device. [Figure 19] FIG. 4 is an exploded perspective view showing a manner in which the underframe and the extension connector are connected to each other. [Figure 20] FIG. 4 is an exploded plan view showing a manner in which the underframe and the extension connector are connected to each other. [Figure 21] 1A to 1C are explanatory views of a spacer, in which (a) is a plan view, (b) is a bottom view, and (c) is a side view. [Figure 22] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Next, an embodiment of the present invention will be described with reference to the drawings. In the following description, terms such as "front / back", "left / right", "front", and "back" are used to specify directions, but these are based on the orientation of a user using a chair device as a piece of furniture according to the present invention. In other words, the direction in which the seats are arranged in the chair device is defined as the left / right direction or lateral direction, and the depth direction is defined as the front / back direction. However, these terms are used for convenience of explanation and do not limit the technical scope of the present invention. In addition, the horizontal direction is used as a general term for the left / right direction or lateral direction and the front / back direction.

[0013] The chair device 1 as a piece of furniture shown in Figs. 1 to 5 includes a seat body 2 as an attachment part and a base structure 3 that supports the attachment part (seat body 2). In the chair device 1 of the first embodiment, two seat bodies 2 are attached to the base structure 3 side by side in the left-right direction. The seat body 2 includes a seat part 4 on which a person sits and a panel 5 erected on one side of the seat part 4. A cushion body 5a is provided on the surface of the panel 5 (the surface facing the seat part 4). The panel 5 of the first embodiment is a cushion panel having a cushion body 5a, and the plate-shaped part protrudes higher (has a higher height) than the cushion body 5a. The seat body 2 constitutes an attachment part, but is not limited to a seat-related part, and is a concept that includes various parts that are attached to a base structure such as a top plate or a shelf for use.

[0014] As shown in Figures 4 and 5, each seat body 2 is standardized to have the same size square shape in a plan view. That is, each seat body 2 is square in a plan view with the panel 5 attached to the seat part 4. In this specification, the terms square, rectangular, and oblong are concepts that include shapes with rounded or chamfered corners.

[0015] As shown in Figs. 1 to 5, the base structure 3 has an underframe 6 having a rectangular frame shape in plan view, and four leg supports 9 supporting four corner portions of the underframe 6. The underframe 6 is composed of a pair of long frames 7 and a pair of short frames 8, and both the long frames 7 and the short frames 8 are made of metal and formed into a hollow angular shape. The underframe 6 having a rectangular frame shape in plan view is formed by fixing adjacent long frames 7 and short frames 8 by welding so that each longitudinal end of the long frame 7 constitutes a corner portion of the base structure 3. Details will be described later, but in the first embodiment, the upper end sides of the leg supports 9 corresponding to each corner portion of the underframe 6, i.e., each longitudinal end portion of both long frames 7, are detachably attached.

[0016] Each seat body 2 and the base structure 3 are connected in a two-stage engagement manner in which each seat body 2 is moved in a first direction facing the base structure 3 relative to the base structure 3 and then moved in a second direction intersecting the first direction, so that they fit together and are prevented from coming out or slipping out of place. The engagement method in the first embodiment is configured by a locking hole 10 formed in either the base structure 3 or each seat body 2, and a locking member 11 and a locking claw 12 provided on the other.

[0017] The engagement method in the first embodiment is such that each seat body 2 is fitted together by a two-stage movement in which each seat body 2 is moved downward as a first direction relative to the base structure 3, and then moved toward the rear as a second direction. In this case, a locking hole 10 is formed in the base structure 3, and a locking member 11 and a locking claw 12 are provided on each seat body 2. Of course, the locking hole 10 may be formed on the seat body 2 side, and the locking member 11 and the locking claw 12 may be provided on the base structure 3 (frame 6) side.

[0018] 3 to 5, a plurality of locking holes 10 with upward openings are formed at appropriate intervals along the longitudinal direction on the upper surface of each long frame 7 of the underframe 6. In the first embodiment, eight locking holes 10 each having a square shape in plan view are formed on the upper surface of each long frame 7.

[0019] At two corners of the underside of the seat 4 of each seat body 2 near the panel 5, there are fastened locking claws 12 (see Figs. 2, 4, 5, 9 and 11) that are hooked and locked to the edges of the corresponding locking holes 10 in the long frame 7 on the far side by screws 13 from below. The tip claw side of each locking claw 12 protrudes toward the rear. Since the locking claws 12 in the first embodiment are made of synthetic resin, when the locking claws 12 are hooked and engaged to the edges of the corresponding locking holes 10 in the long frame 7 on the far side, the locking claws 12 do not hit the edges of the locking holes 10 and generate abnormal noise, and the locking claws 12 are excellent in quietness. A pair of upward projections 12a are formed on the upper surface of the locking claws 12. By fitting these upward projections 12a into the underside of the seat 4, the locking claws 12 are prevented from shifting in position.

[0020] On the two corners of the underside of the seat part 4 of each seat body 2 facing the panel 5 (opposite side), locking members 11 (see Figs. 2, 4 to 8, 10 and 12) that engage with corresponding locking holes 10 in the long frame 7 on the front side are fastened from below with screws 13. Each locking member 11 has a retaining claw portion 11b that is hooked and engaged with the edge of the locking hole 10 in the long frame 7 on the front side, and a slip-prevention piece portion 11c that is biased in a direction (downward) in which the retaining claw portion 11b fits into the locking hole 10. Furthermore, the locking member 11 of the first embodiment has a release operation portion 11d that operates the slip-prevention piece portion 11c in a direction to release it from the locking hole 10 in which it fits. The tip claw side of the retaining claw portion 11b protrudes toward the back.

[0021] As shown in Figs. 10 and 12, the slip-stop piece 11c is fitted into the base 11a of the locking member 11 so as to be movable up and down by utilizing the elasticity of the spring 11e. The lower side of the slip-stop piece 11c is configured to appear and disappear from a downward hole formed in the base 11a of the locking member 11 by the vertical movement. The release operation part 11d is fitted into the base 11a of the locking member 11 so as to be movable laterally. The tip side of the release operation part 11d is configured to appear and disappear from a horizontal hole formed in the base 11a of the locking member 11 by the horizontal movement. Note that in a type in which an attachment part is placed and fixed on a base structure, it is also possible to adopt a configuration in which the slip-stop piece 11c moves downward by its own weight without using the elasticity of the spring 11e.

[0022] In addition, in the first embodiment, when the release operating portion 11d is pressed with a finger, the inclined tip portion of the release operating portion 11d abuts against the inner inclined surface of the horizontal hole formed in the anti-slip piece portion 11c, thereby moving the anti-slip piece portion 11c upward against the elasticity of the spring 11e (see Figures 12(a) and (b)).

[0023] Since the locking member 11 of the first embodiment is made of synthetic resin, when the locking member 11 is engaged with the corresponding locking hole 10 in the long frame 7 on the front side, the locking claw portion 11b or the anti-slip piece portion 11c can be prevented from hitting the edge of the locking hole 10 and generating abnormal noise, and the locking member 11 is excellent in quietness like the locking claw 12. A pair of upward projections 11f is formed on the upper surface of the base portion 11a of the locking member 11. By fitting these upward projections 11f into the lower surface of the seat portion 4, the locking member 11 is prevented from shifting in position.

[0024] The locking claw 12 of the first embodiment is a form obtained by removing the slippage prevention piece portion 11c, the release operation portion 11d, and the spring 11e from the locking member 11 of the first embodiment. That is, in the second embodiment, the locking claw 12 and the slippage prevention claw portion 11b of the locking member 11 are common parts. It is not essential that these are common parts, but commonality is preferable because it reduces the number of parts.

[0025] 4 and 5, the locking members 11 and locking claws 12 at the four corners of the underside of the seat part 4 of the seat body 2 are located on each diagonal line DI in a plan view of the seat body 2. In the first embodiment, the seat body 2 is placed on the underframe 6 in a predetermined mounting orientation, and the mounting orientation of each seat body 2 can be changed to four horizontal directions (four directions: front, back, left, and right) by engaging the locking members 11 or locking claws 12 with the corresponding locking holes 10. In this case, since each seat body 2 is standardized by being configured in a square shape of the same size in a plan view, the presence of the panel 5 does not get in the way even if the mounting orientation is changed, and the seat body 2 can be mounted to the base structure 3 as is.

[0026] The locking holes 10 on the upper surface of each longitudinal end of both long frames 7 face leg plates 14 (see Figs. 10 to 12) fixed to the long frames 7 by welding. Also, leg attachment holes 15 that open downward are formed on the lower surface of each longitudinal end of both long frames 7. As shown in Figs. 10 to 12, with the upper ends of the leg supports 9 fitted into the leg attachment holes 15, screws 16 are screwed from above through the locking holes 10 and the leg plates 14, so that the leg supports 9 are detachably fastened to each corner of the underframe 6.

[0027] In the above configuration, the seat body 2 is attached to the base structure 3, for example, by the following procedure. That is, the seat body 2 is carried above the underframe 6 of the base structure 3 so that the locking members 11 and locking claws 12 on the underside of the seat part 4 of the seat body 2 face the corresponding locking holes 10 in each long frame 7 (see Fig. 10(a) and Fig. 11(d)). In this case, the seat body 2 is moved above the underframe 6 so that the locking members 11 are located on the front side and the locking claws 12 are located on the back side.

[0028] Then, the base body 2 is moved downward facing the underframe 6, and the retaining claw portion 11b and the retaining claw 12 of the retaining member 11 are inserted into the corresponding retaining holes 10 (see Fig. 10(b) and Fig. 11(e)). Then, the slip prevention piece portion 11c of the retaining member 11 abuts against the upper surface of the edge of the retaining hole 10 and moves upward against the elasticity of the spring 11e, and is inserted into the base portion 11a of the retaining member 11 (see Fig. 10(b)).

[0029] Next, the base body 2 is pushed inward, so that the retaining claw portion 11b and the retaining claw 12 of the locking member 11 are caught and engaged with the edges of the corresponding locking holes 10 (see Figs. 10(c) and 11(f)). Then, the anti-slip piece portion 11c of the locking member 11 faces the gap of the locking hole 10 formed on the front side of the anti-slip claw portion 11b of the locking member 11, and the anti-slip piece portion 11c moves downward due to the restoring force of the spring 11e and fits into the gap of the locking hole 10 (see Fig. 10(c)). As a result, the base body 2 and the base structure 3 are connected.

[0030] In this case, the tip claw side of the retaining claw portion 11b of the locking member 11 and the locking claw 12 prevent the locking member 11 from slipping out (wobbling) in the vertical direction, and the body side of the retaining claw portion 11b of the locking member 11 and the anti-slip piece portion 11c prevent the locking member 11 from slipping out (wobbling) in the horizontal direction. Incidentally, the gap of the locking hole 10 formed on the front side of the locking claw 12 remains as it is (see FIG. 11(f)).

[0031] Conversely, when removing the seat body 2 from the base structure 3, for example, the following procedure is performed: The release operation portions 11d of both locking members 11 on the front side of the underside of the seat part 4 of the seat body 2 are pressed with fingers to move the slippage prevention pieces 11c upward against the elasticity of the springs 11e, and the slippage prevention pieces 11c are pulled up through the gaps of the corresponding locking holes 10 (see FIG. 12(a)).

[0032] Next, the seat body 2 is pulled toward the front, and the retaining claw portion 11b of the locking member 11 and the locking claw 12 are displaced from the edge of the corresponding locking hole 10 to disengage (see FIG. 12(b)). Then, the retaining piece portion 11c of the locking member 11 rides up and comes into contact with the upper surface of the edge of the corresponding locking hole 10, and moves upward against the elasticity of the spring 11e, and sinks into the base portion 11a of the locking member 11 (see FIG. 12(b)). Once in this state, the finger may be released from the release operation portion 11d. Here, the behavior of the locking claw 12 side is not shown, but the state is the same as that in FIG. 11(e).

[0033] Then, the base body 2 is moved upward facing the underframe 6, and the retaining claw portion 11b and the locking claw 12 of the locking member 11 are pulled up from the corresponding locking holes 10 (see FIG. 12(c)). As a result, the connection between the base body 2 and the base structure 3 is released. At this point, the state of the locking claw 12 side is the same as that shown in FIG. 11(d).

[0034] According to the above configuration, the seat body 2 is moved in a first direction (downward) facing the base structure 3 and then moved in a second direction (backward) intersecting the first direction in a two-step movement, so that the seat body 2 fits together so that it is prevented from slipping out or slipping out of place. Therefore, when attaching the seat body 2 having an attachment such as a panel 5 on the back side to the base structure 3 installed against a wall, for example, there is no need to hold the seat body 2 in an oblique position as in the conventional technology, and even if there is no space on the back side (wall side), there is no risk of the seat body 2 rubbing against the wall and damaging it. In other words, the chair device 1 can be assembled without damaging the surrounding objects. In addition, since the force work of holding the seat body 2 in an oblique position as in the conventional technology can be eliminated, the workability of the assembly work of the chair device 1 is improved.

[0035] In addition, when a configuration is adopted in which the anti-slip claw portion 11b of the locking member 11 is hooked onto and engaged with the edge of the corresponding locking hole 10 and the anti-slip piece portion 11c of the locking member 11 is inserted into the locking hole 10, the tip claw side of the anti-slip claw portion 11b of the locking member 11 prevents slipping (rattle), and the main body side of the anti-slip claw portion 11b of the locking member 11 and the anti-slip piece portion 11c prevent slipping (rattle). This means that the anti-slip claw portion 11b and the anti-slip piece portion 11c can share the control direction, which has the advantage of making it easier to ensure the connection strength.

[0036] Furthermore, if the locking member 11 is provided on the front side in the second direction (rear direction) of either the base structure 3 or the seat body 2, and the locking claw 12 is provided on the rear side in the second direction (rear direction) to be hooked and locked by the edge of the locking hole 10 formed in the other body, the locking claw 12 can be made to have a simpler structure than the locking member 11, so that the cost of parts can be reduced while maintaining the connection strength. In addition, the locking member 11 has a release operation part 11d that operates the slip prevention piece part 11c in a direction to release it from the corresponding locking hole 10, so that the work of removing the seat body 2 from the base structure 3, that is, the work of disassembling the chair device 1 can be easily performed. In addition, the installation and removal work can be performed without using a dedicated tool, and the seat body 2 can be freely rearranged, such as changing the installation direction, and these points also contribute to improving the workability of the assembly and disassembly work of the chair device 1.

[0037] 13 to 16 show a second embodiment in which the structures of the locking members and locking claws are different from those of the first embodiment. Here, in the second and subsequent embodiments, the same reference numerals are used for the configurations and functions similar to those of the first embodiment, and detailed descriptions thereof will be omitted.

[0038] As described above, in the second embodiment, the structure of the locking member and the locking claw is different from that of the first embodiment. The locking member 21 of the second embodiment has a metal anti-slip claw portion 21b with a U-shaped cross section that is hooked and engaged with the edge of the locking hole 10 in the front long frame 7, and a synthetic resin anti-slip piece portion 21c that is biased in a direction (downward) into which the anti-slip claw portion 21b is fitted into the locking hole 10.

[0039] Furthermore, the locking member 21 of the second embodiment has a synthetic resin cover body 21a that acts as a cushioning material when the retaining claw portion 21b hits the edge of the locking hole 10. The anti-slip piece portion 21c is integrally provided with a release operation portion 21d that is operated in a direction to remove it from the locking hole 10 into which it is fitted, and an elastic piece portion 21e that urges it downward.

[0040] The locking member 21 of the second embodiment is fastened from below by screws 23 to two corners on the side (opposite side) of the underside of the seat part 4 of the seat body 2 that faces the panel 5, with the anti-slip piece part 21c housed inside the anti-slip claw part 21b to which the cover body 21a is attached. The tip claw side of the anti-slip claw part 21b protrudes toward the back. The release operation part 21d protrudes toward the front side opposite the back.

[0041] 13, 14, and 16, the anti-slip piece 21c is fitted into the anti-slip claw portion 21b so as to be movable up and down by utilizing the elasticity of the elastic piece 21e. The anti-slip piece 21c is configured so that the lower side of the anti-slip piece 11c appears and disappears from the anti-slip claw portion 21b of the locking member 21 due to the up and down movement.

[0042] In the second embodiment, when the release operation portion 21d is pushed up with a finger, the anti-slip piece 21c is moved upward against the elasticity of the elastic piece 21e (see Figs. 16(a) and (b)). In this case, the screw 23 is formed with a neck 23a having a smaller diameter than the head and a larger diameter than the shaft, and the anti-slip piece 21c can move up and down by the length of the neck 21a. An upward protrusion 21f is formed on the upper surface of the anti-slip claw portion 21b. By fitting the upward protrusion 21f into the lower surface of the seat portion 4, the locking member 21 is prevented from shifting in position.

[0043] 15, the locking claw 22 of the second embodiment has a configuration in which the slip-prevention pieces 21c have been removed from the locking member 21 of the second embodiment, and is fastened from below by screws 23 to two corners of the underside of the seat part 4 of the seat body 2, closer to the panel 5. That is, the locking claw 22 of the second embodiment has a metal anti-slip claw part 22b with a U-shaped cross section that is hooked and engaged with the edge of the locking hole 10 in the rear long frame 7, and a synthetic resin cover body 21a that serves as a cushion when the anti-slip claw part 21b hits the edge of the locking hole 10.

[0044] The tip claw side of the locking claw 22 protrudes toward the back. An upward projection 22f is formed on the upper surface of the locking claw 22. By fitting the upward projection 22f into the underside of the seat portion 4, the locking claw 22 is prevented from shifting in position. As described above, the locking claw 22 of the second embodiment is a form obtained by removing the slip prevention piece 21c from the locking member 21 of the second embodiment. In other words, in the second embodiment, the locking claw 22 and the anti-detachment claw portion 21b with the cover body 21a are common parts. As in the first embodiment, it is not essential that these are common parts, but commonality is preferable because it reduces the number of parts.

[0045] In the above configuration, the procedure for attaching and detaching the seat body 2 to the base structure 3 is substantially the same as in the first embodiment (see Figs. 14 to 16). Even when the configuration of the second embodiment is adopted, the same effects as those of the first embodiment are achieved.

[0046] Next, with reference to Fig. 17 onwards, other structures that can be adopted in the first (or second) embodiment will be described. As shown in Figs. 17 and 18, the chair apparatus 1 of the first (or second) embodiment is capable of horizontally connecting a plurality of base structures 3. In this case, adjacent base structures 3 are connected by connecting the underframes 6 via extension connectors 40. Figs. 17 and 18 show an example of an L-shaped chair apparatus 31.

[0047] In the example of Fig. 17 and Fig. 18, two base structures 3 are connected in an L-shape by connecting one underframe 6 to the other underframe 6 via two extension connectors 40. A corner seat 32 having two panels 5 erected along two adjacent sides of the seat 4 is arranged at the corner of the combination of the base structures 3. Two seats 2 shown in the first (or second) embodiment are arranged on one side of the corner seat 32. A long seat 33, which is longer horizontally than the seat 2 and the corner seat 32, is arranged on the other side of the corner seat 32. The panels 35 of the corner seat 32 and the long seat 33 are shorter in height than the panel 5 of the seat 2.

[0048] At each corner of the underframe 6, an extension connector 40 for connecting another base structure 3 can be attached at two locations on the horizontal outside. In this case, horizontally opening screw insertion holes 7a, 8a are formed at both longitudinal ends of each frame 7, 8 (see Figs. 18 and 19). The screw insertion holes 7a, 8a are for attaching the extension connector 40 to the underframe 6. The extension connector 40 has a holding portion 41 for holding the underframe 6 at each of two opposing sides. The extension connector 40 has a nut portion 42 embedded therein, which opens in the horizontal direction where both holding portions 41 are located. The extension connector 40 is detachably fastened to the corner of the underframe 6 by holding the underframe 6 with the holding portion 41 of the extension connector 40 and screwing a screw 43 from the inside of the underframe 6 into the nut portion 42 of the extension connector 40 through the screw insertion holes 7a, 8a of each frame 7, 8.

[0049] 18, the extension couplers 40 can be attached not only to each corner of the underframe 6 but also to two locations on the horizontal outside of the longitudinal midsection of each long frame 7. Horizontally opening screw insertion holes 7b are formed in two locations on the longitudinal midsection of each long frame 7. The extension couplers 40 are detachably fastened to the underframe 6 at two locations on the longitudinal midsection of the long frame 7 by holding the underframe 6 with the holding portions 41 of the extension couplers 40 and screwing screws 43 from the inside of the underframe 6 into the nut portions 42 of the extension couplers 40 through the screw insertion holes 7b of each long frame 7.

[0050] If the extension coupler 40 did not have the holding portion 41, the load would be concentrated on the screw 43, making it difficult for it to withstand the load. Therefore, the holding portion 41 of the extension coupler 40 is used to regulate the relative displacement between the underframes 6, and the holding portion 41 is designed to receive the vertical load so that the screw 43 is not subjected to the vertical load. In addition, when the leg support 9 is attached to the extension coupler 40 (details will be described later), the presence of the lower holding portion 41 allows the load to be distributed between the extension coupler 40 and the leg support 9.

[0051] A locking hole 10 is formed on the top surface of the extension connector 40 (see FIG. 20). In other words, the locking member 11 and the locking claw 12 can be engaged with the extension connector 40 as well. The locking hole 10 of the extension connector 40 faces an inner plate portion 44 inside the extension connector 40. A leg attachment groove 45 is formed on the lower side of the extension connector 40. With the upper end side of the leg support 9 fitted into the leg attachment groove 45, the leg support 9 is detachably fastened to the extension connector 40 by screwing a screw 46 from above through the locking hole 10 and the inner plate portion 44. Therefore, each leg support 9 can be attached to either the underframe 6 or the extension connector 40.

[0052] As shown in Figures 18 and 21, when the long seat body 33 is attached onto the underframe 6, a spacer 47 is interposed between the underframe 6 and the long seat body 33. Each spacer 47 is made of synthetic resin and has a main body portion 47a that is rectangular in plan view and a fitting portion 47b that is integrally formed with the main body portion 47a and is out of phase with the main body portion 47a by approximately 45°. The spacer 47 is attached to the locking hole 10 by fitting the fitting portion 47b of the spacer 47 into the locking hole 10 that does not engage with the locking member 11 or the locking claw 12, and then rotating the main body portion 47a by approximately 45°.

[0053] As shown in Figures 17, 18 and 22, the panels 5 of adjacent seat bodies 2 are connected at the top of their plate-like portions by a joint piece 48 to prevent misalignment. The joint piece 48 is disposed across the tops of the plate-like portions of adjacent panels 5. Both longitudinal ends of the joint piece 48 are fastened to the plate-like portion of each panel 5 by screws 49. A removably fitted joint cover 50 is fitted over the joint piece 48 fastened with the screws 49 to prevent the screws 49 from being exposed.

[0054] The configuration of each part in the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the present invention. For example, the connection between the mounting part and the base structure may be a hanging type in which the mounting part is moved upward as a first direction relative to the lower surface of the base structure, not the upper surface, and then moved horizontally as a second direction to engage with each other, or a side-mounted type (such as a wall-mounted type) in which the mounting part is moved horizontally as a first direction relative to the surface of the base structure extending in the vertical direction and then moved upward or downward as a second direction to engage with each other. Also, the locking hole may be provided on the mounting part side, and the locking member and locking claw may be provided on the base structure side.

[0055] Furthermore, the structure of the base structure does not have to be limited to the one consisting of a frame and leg supports as in the above embodiment, and various structures such as beams, walls, etc. It is not essential that the mounting parts be standardized by configuring them in a square shape of the same size in a plan view as in the seat body 2 in the above embodiment. [Explanation of symbols]

[0056] 1. Chair equipment as furniture 2 Seat as an attached part 3 Base Structure 3 Base Structure 4 Seat 5 Panel 6 Frame 7 Long Frame 8 Short Frame 9 leg posts 10 Locking hole 11 Locking member 11b Anti-slip claw part 11c Anti-slip piece 11d Release operation section 12 Locking claw 13 Screw

Claims

1. A fixture comprising a base structure and an attachment part attached to the base structure, The connection between the base structure and the mounting parts is an engagement type in which the mounting parts are moved in a first direction facing the base structure relative to the base structure and then moved in a second direction intersecting the first direction, so that the mounting parts fit together to prevent disengagement and slippage from each other, the engagement method is constituted by a locking hole formed in one of the base structure and the mounting component, and a locking member or a locking claw provided on the other of the base structure and the mounting component, The locking member has a slip-prevention claw portion that is hooked onto an edge of the locking hole, a slip-prevention piece that is biased in a direction to fit into the locking hole, and a release operation portion that operates the slip-prevention piece in a direction to release it from the locking hole, and the base structure and the attachment component are connected by the slip-prevention piece fitting into the locking hole with the slip-prevention claw portion hooked onto the edge of the locking hole, The four locking holes used when mounting the mounting components to the base structure are arranged at the four corners of a square in a plan view with respect to the base structure or the mounting components, and the release operation portion of the locking member is located between the base structure and the mounting components. furniture.

2. In one of the base structure and the mounting component, the locking member is provided on a front side in the second direction, and the locking claw is provided on a rear side in the second direction. The fixture according to claim 1.

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