JP2001008769A - Chair mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high class feeling in outer appearance and to rapidly arrange and remove chairs by closely arranging a plurality of chairs on a horizontal crosspiece and fixing only the chairs disposed at least at both ends to the crosspiece. SOLUTION: An end part arm 73 and the horizontal crosspiece 6 are inserted by sliding from the outer end part side of the end part arm 73 of a bracket 7 to the through-hole of the slider 3 of the chair 1A which is arranged in one side end part of the crosspiece 6 and, then, the chair 1A is fixed by a fixing means at the immediately upper part of a supporter 5A. Then the chairs 1 are successively inserted by sliding from the other end part side of the crosspiece 6 in the same way, carried and also moved by sliding along the crosspiece 6 and, then, the engagement parts of the adjacent chairs 1 are engaged. Finally, the chair 1A arranged in the other side end part of the crosspiece 6 is inserted by sliding and fixed by the fixing means at the immediately upper position of the end part supporter 5A. Each chair 1 is prohibited to be moved by sliding in the longitudinal direction of the crosspiece 6 and restricted not to be moved by the through-hole of the slider 3 in the direction which is orthogonally crossed with the longitudinal direction of the crosspiece 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair mounting structure suitable for a temporary stand used in various events and the like.

[0002]

2. Description of the Related Art At event venues such as golf tournaments and outdoor concerts, temporary stands assembled and dismantled on the spot are used as spectators and the like. As such a temporary stand, there is conventionally known a temporary stand in which a long plate material or the like is provided to a structure formed by columns, horizontal members, or the like and used as chairs or passages.

[0003]

However, in such a case, since a plate is simply attached to the structure, there is a problem that the appearance lacks a sense of quality. In addition, since the length of the plate is predetermined, it is difficult to change the style of the temporary stand according to the venue where the temporary stand is installed or the purpose, and the required length of the plate must be prepared each time. There is. Furthermore, if the plate material is very long, the number of parts increases, such as the need for many supporting members such as columns and corresponding mounting members, and the number of parts increases, and as a result, the installation and removal of the temporary stand The labor and time will also increase.

[0004] In order to avoid such a problem, a large number of chairs assigned to each occupant are prepared on the horizontal member, and the chairs are fixed to the horizontal member by screws or the like. A temporary stand is considered. However, since such chairs need to be screwed on each chair, the time and effort required to attach and remove the chairs is unnecessarily extra time, and temporary installation that requires good installation and removal facilities is required. There arises a problem that the condition of the stand cannot be satisfied.

[0005]

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a temporary stand in which a plurality of chairs are closely arranged on a horizontal member, and only chairs arranged at least at both ends are placed sideways. By fixing to the frame, a high-quality appearance is obtained, and a chair mounting structure with a simple configuration that can be quickly installed and removed is configured.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The chair mounting structure according to the present invention is such that a plurality of chairs are detachably mounted on a horizontal member constituting a leg structure of a temporary stand. By arranging the chairs along the longitudinal direction thereof on the cross member and fixing at least the chairs arranged at the ends to predetermined positions of the cross members using fixing means, all the chairs are restrained by the adjacent chairs. The movement from the arrangement position is prohibited.

[0007] According to this structure, all the chairs are adjacent to each other only by fixing the chairs arranged at the ends to the horizontal members via the fixing means without screwing each chair to the horizontal members. Can be fixed so as not to be able to move from that position by restraining the chair. Also, all chairs can be removed simply by releasing the fixing of the chairs at the ends by the fixing means. Therefore, the convenience of attaching and detaching the chair can be improved, so that the temporary stand can be repeatedly installed and removed repeatedly. In addition, since chairs can be assigned to each seated person, it is easy to give a high-quality appearance to the chairs by giving them a craftsmanship, etc. It is possible to easily cope with a change in the style of the temporary stand by changing the number of chairs to be installed, etc., differently from the one used as such.

[0008] In order to further improve the convenience of attaching and detaching the chair and appropriately stabilize the chair supported by the horizontal member, the chair is moved only by sliding along the longitudinal direction of the horizontal member. It is desirable to form an insertion portion through which the horizontal member can be inserted and removed along the longitudinal direction so that the horizontal member can be inserted. By doing so, when attaching the chair to the horizontal member,
If multiple chairs are slid and inserted sequentially from the end of the cross member, the chair slides in the longitudinal direction with respect to the cross member, while being restrained and moved in directions other than the longitudinal direction of the cross member It is impossible to do so, and all chairs are fixed at predetermined positions as the chairs at the ends are fixed.

Further, in order to prevent the chairs adjacent to each other supported by the horizontal member from easily restraining each other and to prevent rattling of the chair, the chair cannot be moved with respect to the chair adjacent to the chair. It is preferable to form an engaging portion that can be engaged with a plurality of chairs, and to arrange a plurality of chairs so that adjacent chairs are closely arranged via the engaging portion. In particular, if such an engaging portion is formed between adjacent chairs when the chair can only slide with respect to the horizontal member, rattling of the chair can be more easily and reliably prevented.

[0010] More specifically, as an engaging portion which enables the chairs adjacent to each other on the horizontal member to be very easily restrained from each other and to effectively prevent rattling of the chair, the engaging portions are adjacent to the side edges of the chair. And a concave portion corresponding to a convex portion of an adjacent chair. In order to more reliably and easily engage such engaging portions and also to facilitate disengagement, the convex portion is tapered so that its width gradually narrows toward its protruding end. It is preferable that the concave portion has a tapered shape that gradually narrows toward the inside corresponding to the tapered shape of the convex portion.

In the case where the horizontal member is supported at its upper end via a bracket at the upper end of a column constituting a leg structure together with the horizontal member, the chair is passed through the bracket. In order to be able to slide and insert from the end of the horizontal member, it is desirable that the insertion portion be capable of inserting a bracket along the longitudinal direction of the horizontal member. Furthermore, in order to make the chair easy to slide into the horizontal member with a simple configuration, and to make the sliding movement of the chair with respect to the horizontal member smooth, the chair includes a chair body and a chair. It is effective to provide a slider detachably attached to the bottom side of the main body, and to form the insertion portion in the slider. In this case, the slider attached to the chair body is not exposed to the outside, and in order to constitute a chair with a good appearance, a channel-like slider accommodation portion is formed in the chair, the bottom surface of which is opened over both side edges. Preferably, the slider is accommodated in the slider accommodating portion. Furthermore, in order to be able to stably support the chair on the horizontal member and to reduce the frictional resistance of the slider to the horizontal member, a pair of sliders should be attached to the side edges of the chair in the slider receiving portions. Attaching along is effective.

[0012] Further, in order to be able to easily fix the chair disposed at the end portion at a predetermined position, the fixing means comprises a fixing member for sandwiching the horizontal member between the chair and the fixing member, And a fixing device for fixing the chair to the horizontal member by applying the above force. As a preferred embodiment which can fix the chair at a predetermined position with a simple configuration as such fixing means, a screw which is fastened to the chair and biases the fixing member in the direction of contacting the horizontal member is used. As a member, a fixed member, a base portion serving as a scaffold for the turning operation of the screw member, and a contact portion attached to the base portion so as to be pressed against the horizontal member by the tightening operation of the screw member and prohibited from moving the chair. And those provided.

[0013] In particular, when the horizontal member is a cylindrical member arranged in a pair in the front-rear direction, the chair can only be slid along the longitudinal direction of the horizontal member. In a typical embodiment, the insertion portion is a substantially spectacle-shaped through hole that opens at both side edges of the chair and penetrates in the width direction of the chair so that the pair of transverse members can be inserted. Can be In this case, in order to make the fixing means simple and to ensure that the chair arranged at the end can be fixed to the cross member, the contact portion should be formed in a pair of cross members facing each other. It is preferable to have an inclined surface that simultaneously and uniformly contacts the facing surface from below.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The mounting structure of the chair 1 of this embodiment is applied to a temporary stand temporarily installed as an audience seat or the like in an event venue such as a golf tournament, and the plurality of chairs 1 can be detachably attached to the leg structure 9 of the temporary stand. It is designed to be attached. In the present embodiment, a plurality of chairs 1 are deployed in a platform shape on a leg structure 9 whose height is changed back and forth, and FIG. 1 shows a structure in which the chair 1 is attached to the leg structure 9 constituting one stage. Is shown.

First, the leg structure 9 is, as shown in FIG.
A pair of front and rear cross members 6 supported between upper ends of the columns 5 are attached to the columns 5 standing up at a predetermined distance.
Are detachably connected to each other. Prop 5
Is made of a metal round pipe material, and a pair of struts 5 arranged at the end of the leg structure 9 is defined as an end strut 5A, and the strut 5 arranged at a substantially intermediate portion of the end strut 5A. Is an intermediate support 5B. The horizontal member 6 is also made of a metal round pipe material, has a longitudinal dimension substantially equal to the distance between one end support 5A and the intermediate support 5B, and is parallel to the front and rear at the upper end of the support 5. In pairs. Then, a bracket 7 is interposed between the support 5 and the horizontal member 6,
These are detachably connected to each other.
This bracket 7 is a hollow T-shaped hollow when viewed from the front, and can be attached to and detached from the column 5 with a joint member using a normal Bon joint (not shown) interposed between its lower end and the upper end of the column 5. It is designed to be attached to.
At the side end of the bracket 7, there is provided a not-shown protruding member which can be protruded and retracted from the side end of the bracket 7 by being urged by a not-shown spring housed inside the bracket 7. By immersing the member and abutting the side end of the bracket 7 and the side end of the cross member 6, the protruding member is protruded in this state to enter the inside of the cross member 6,
The horizontal member 6 is detachably attached to the bracket 7. Here, the upright portion 71 including the lower end portion of the bracket 7 is substantially equal to the inner diameter and outer diameter of the column 5, and the horizontal portion 72 including the side end portion of the bracket 7 is approximately equal to the inner diameter and outer diameter of the horizontal member 6. It is set to become. The horizontal portion 72 of the bracket 7 attached to the intermediate support 5B is provided with protruding and retracting members at both ends thereof.
The bracket 7 is attached to an end arm 73 that extends substantially horizontally toward the outer end of the horizontal portion 72.
Is provided. The end arm 73 is also set so as to be substantially equal to the outer diameter of the horizontal member 6.

As shown in FIG. 1, the chair 1 mounting structure of the present embodiment is configured such that a plurality of chairs 1 are detachably mounted on the horizontal members 6 of the leg structure 9 assembled as described above. Things. More specifically, as shown in FIGS. 1 to 5, the chair 1 is a chair body 2 in which the respective parts are integrally formed so as to form a hollow general housing by blow molding a synthetic resin material; And a slider 3 detachably attached to the chair main body 2 so as to be directly supported by the slider 3. The chair main body 2 has a seating surface 21 which is inclined on the upper surface side so as to gradually decrease from the front end of the chair main body 2 toward the rear, and is slightly raised along the rear edge of the seating surface 21 to be slightly raised. A waist abutment portion 23 having a width slightly shorter than the width of the slider housing portion 22 is formed on the bottom surface side, and a slider housing portion 22 extending in a channel shape from the center in the front-rear direction to the both side edges 2a over the entire width direction. It is formed. Further, nuts N1 for mounting the slider 3 are buried in the slider accommodating portion 22 at two positions before and after the both end portions 22a. Further, at the lowest position on the rear end side of the seating surface 21, a drainage hole P vertically penetrating through the slider accommodation portion 22 on the bottom surface side is provided.
Is provided. Further, on one side edge 2a (the right side edge in the illustrated example) of the chair body 2, a convex portion 25 protruding laterally is provided on the front end side, and a concave portion 26 is formed on the rear end side. ing. On the other hand, the other side edge 2a (the left side edge in the illustrated example) is provided with a concave portion 26 corresponding to the convex portion 25 of the one side edge on the front end side and the one side edge portion on the rear end side. The convex portions 25 corresponding to the concave portions 26 are formed. Here, as shown in FIG. 6, the convex portion 25 and the concave portion 26 respectively engage with the corresponding concave portion 26 and the convex portion 25 of the adjacent chair 1 from the side to form the engaging portion 24. In addition, the chairs 1 adjacent to each other via the engaging portion 24 are arranged closely. In order to smoothly perform the engagement and disengagement of the engagement portion 24, and to maintain a tighter engagement state, the convex portion 25 is gradually narrowed toward its protruding end. The concave portion 26 has a tapered shape that gradually narrows toward the inside of the chair body 2 according to the tapered shape of the corresponding convex portion 25.

On the other hand, the slider 3 is a plate-like member formed by injection molding as shown in FIGS.
Has an insertion portion 31 through which the can be inserted. The insertion portion 31 is provided with a pair of through holes 32 penetrating left and right so that the pair of transverse members 6 can be inserted at the same time, and a lower portion provided between them so as to communicate the through holes 32. And a groove 33 that is open to the eye. The pair of through-holes 32 are partially circular in side view such that the opening width dimension in the front-rear direction is smaller than the maximum distance between the outward facing surfaces of the pair of transverse members 6 only on the inward side facing each other. The chair body 2 is only allowed to slide in the longitudinal direction of the transverse member 6 by inserting the transverse member 6 and the bracket 7 so as to allow the chair body 2 to slide in the longitudinal direction. 2 is prohibited from moving in the front-rear direction or the vertical direction. The front and rear widths of the groove 33 are set slightly larger than the front and rear widths of the upright portion 71 of the bracket 7 so that the slider 3 can slide through the bracket 7. Such a slider 3 is attached to the slider housing 22 of the chair body 2.
At the left and right side ends 22a. Therefore, the slider 3 provided on the chair body 2
Screw insertion holes 34 penetrating vertically are formed at two positions before and after the slider 3 corresponding to the mounting nut N1, and a screw 35 is inserted into the screw insertion hole 34 from below and the nut N
1, the slider 3 is detachably attached to the chair body 2.

Further, in this embodiment, when a plurality of chairs 1 are arranged in the form of a horizontal member 6 so that adjacent chairs 1 are closely aligned with each other via the engaging portions 24, FIG. As shown in FIG. 4, the chair 1 </ b> A arranged at the end is fixed at that position by the fixing means 8. The fixing means 8 includes a fixing member 81 that sandwiches the horizontal member 6 from below with the chair 1A, and a fixing tool that applies a pinching force to the fixing member 81 to fix the chair 1A to the horizontal member 6. And a barrel screw member 85. The fixing member 81 is
It comprises a flat base 82 extending in a direction perpendicular to the longitudinal direction of the horizontal member 6 and a contact portion 83 fixed to the base 82 and forming an arch upward along the longitudinal direction of the base 82. is there. Then, when the fixing member 81 approaches the horizontal member 6 from below, the central portion between the pair of horizontal members 6 and the central portion of the fixing member 81 substantially match, and the horizontal members 6 face each other. A pair of inclined surfaces 84 that incline back and forth are formed on the contact portion 83 so that the contact portion 83 contacts the facing surface 61 simultaneously and evenly. A screw insertion hole 82 is formed between a substantially central portion of the base portion 82 and a substantially central portion of the upper wall of the contact portion 83.
a and 83a are respectively opened. Further, nuts N2 are buried in substantially the center portions of both side edges of the slider accommodating portion 22 of the chair main body 2, and screw insertion holes 36 vertically penetrating corresponding to the nuts N2 are provided in the slider 3,
The screw member 85 is inserted from below into each of the screw insertion holes 82a and 82a.
The chair 1A disposed at the end is fixed at a predetermined position by inserting the base 1 into the base 3a and screwing it to the nut. At this time, with the screwing operation using the base portion 82 of the screw member 85 as a scaffold, the inclined surface 84 of the contact portion 83 is pressed against the lateral member 6 from below, and the distance between the two lateral members 6 is pushed. The abutting portion 83 is designed to bite between the two lateral members 6 so as to be spread, and the chair 1 can be firmly held at that position. Any one of the chairs 1
In all chairs 1, the nut N2 and the screw insertion hole 36 are connected to the chair body 2 so that the chair 1 is securely fixed by the fixing means 8 as described above even if the chair body 2 is disposed at the end. And the slider 3 respectively.

Further, as shown in FIG. 1, the chair 1A disposed at the end is laid so as to be supported by the cross member 6 via the bracket 7 at a position just above the end support 5A. The longitudinal dimension of the frame member 6 and the width dimension of the chair 1 are set, whereby the chair 1A and the other chairs 1 arranged at the ends are set.
Is stabilizing. At this time, a portion of the chair 1A disposed at the end, which is located outward of the center of the chair 1A, is supported by the end arm 73 provided on the bracket 7 via the slider 3.

The chair 1 as described above is attached to the horizontal member 6 as follows. That is, first, the horizontal member 6
The end arm 73 and the transverse member 6 are slid from the outer end side of the end arm 73 provided on the bracket 7 into the through hole 32 of the slider 3 of the chair 1A disposed at one end of the chair 1A. The chair 1A is fixed by the fixing means 8 at a position just above the end support 5A. Next, the chairs 1 are sequentially slid and inserted in the same manner from the other end of the horizontal member 6, and are slid along the horizontal member 6 to engage the engaging portions 24 of the adjacent chairs 1 with each other. . Finally, horizontal material 6
Slide the chair 1A placed at the other end of the
As described above, the chair 1A is fixed by the fixing means 8 at a position directly above the end support 5A. By doing this,
At the same time as the chairs 1A arranged at the both ends are fixed at the predetermined positions, all the adjacent chairs 1 are closely arranged with each other via the engaging portions 24. Thereby, each chair 1 is prohibited from sliding along the longitudinal direction of the transverse member 6, and is not moved by the through hole 32 of the slider 3 in a direction orthogonal to the longitudinal direction of the transverse member 6. Since it is regulated, it is fixed at a fixed position so as not to move in any direction. Also, these chairs 1
When removing the chair, the above procedure is reversed, and the screw member 85 of the fixing means 8 of the chair 1A arranged at the end is removed to make the chair 1 slidable with respect to the horizontal member 6, and The chair 1 may be sequentially slid along the horizontal member 6 and pulled out from the horizontal member 6.

The chair 1 mounting structure according to the present embodiment having the above-described structure is used to mount a plurality of chairs 1 on the leg structure 9 of the temporary stand. By arranging a plurality of chairs 1 along the longitudinal direction of 6 and fixing the chairs 1A arranged at the ends at predetermined positions by the fixing means 8, all the chairs 1 cannot be moved from that position. Is to be restrained. Therefore, it is not necessary to screw all the chairs 1 to the horizontal member 6, and only the chair 1A arranged at the end is fixed to the horizontal member 6 via the fixing means 8, which is very quick and easy. All chairs 1 can be fixed in place,
Further, all chairs 1 can be easily removed only by releasing the fixing by the fixing means 8. That is, with such a simple configuration, the convenience of attaching and detaching the chair 1 is improved, and the convenience of installing and removing the temporary stand is also improved. Further, such a chair 1 can be assigned to each seated person, and it is easy to provide the waist abutment 23 and the like on the chair 1, so that the appearance of the chair 1 is improved,
In turn, it is possible to upgrade the entire temporary stand. Furthermore, if the number of chairs 1 installed on the horizontal member 6 is changed, it is possible to easily cope with a change in the style of the temporary stand.

Further, since the transverse member 6 is inserted through the chair 1 to form the insertion portion 31 that allows only the sliding movement along the longitudinal direction of the transverse member 6, the sliding member 6 can be slid and inserted into the transverse member 6. The chair 1 can be prevented from moving in a direction other than that direction, the chair 1 can be easily mounted, and the restraint of each chair 1 on the horizontal member 6 is also easy. Further, since the engaging portions 24 are formed between the adjacent chairs 1 so that they cannot be moved relative to each other, the adjacent chairs 1 are arranged more closely and installed at the ends. Chair 1A
It is possible to easily realize a configuration in which all chairs 1 cannot be moved only by fixing. In addition, the rattling of the chair 1 is thereby prevented. Such an engaging portion 24
Are formed on the side edge of each chair 1 by a convex portion 25 and a concave portion 26.
Therefore, if only the chair 1A at the end is fixed, all the chairs 1 closely align the chairs 1 adjacent to the position via the engaging portion 24 of this simple structure, and at that position, Being fixed, the rattling of the chair 1 can be prevented very effectively. In particular, the convex portion 25 has a tapered shape gradually narrowing toward its protruding end, and the concave portion 2
6 is formed in a tapered shape corresponding to the convex portion 25,
Engagement and disengagement of the engagement portion 24 can be smoothly performed, and a reliable engagement state can be obtained.

In this embodiment, in which the horizontal member 6 is supported on the column 5 via the bracket 7, the bracket 7
The chair 1 can be easily attached to the cross member 6 through the bracket 7 because the insertion portion 31 can be inserted similarly to the cross member 6. In addition, chair 1 is replaced with chair body 2
And the slider 3 detachably attached to the bottom side of the chair body 2, so that the chair body 2 and the slider 3 can be formed into an appropriate shape with a material suitable for each function. The sliding movement of the chair 1 with respect to the horizontal member 6 can be made smooth. In particular,
Since the slider 3 is accommodated in the channel-shaped slider accommodating portion 22 provided on the bottom surface side of the chair body 2, the slider 3 is not exposed to the outside, so that the appearance can be favorably maintained. Further, since the slider 3 is attached to the slider accommodating portion 22 of the chair body 2 at two places along the both side edges 22a, the chair 1 can be stably held on the horizontal member 6, and the chair 3 can be stably held. It is also possible to suppress the frictional resistance at the time of the slide movement of 1.

The fixing means 8 is provided with a fixing member 81 for holding the horizontal member 6 between the chair 1A and the screw member 85 as a fixing tool for fixing the fixing member 81 to the horizontal member 6. Chair 1 placed at the end
A can be fixed at a predetermined position by simple means. Specifically, the fixing member 81 includes a base portion 82 serving as a scaffold for the turning operation of the screw member 85 and a contact portion 83 pressed against the horizontal member 6 in accordance with the fixing operation of the screw member 85. Therefore, the movement of the chair 1 can be easily prohibited by merely tightening the screw member 85.

In particular, in the temporary stand to which the present embodiment is applied, the horizontal member 6 is a round pipe having a pair of front and rear and arranged in parallel.
Since the through-holes 32 are formed like eyeglasses through which the horizontal member 6 can be inserted, the chair 1 can be stably held on the horizontal member 6 and slidably moved. Further, the fixing member 81
Of the pair of transverse members 6 are formed simultaneously and evenly on the contact portions 83 of the pair, and this inclined surface 84 is formed by the screwing operation of the screw member 85 as a fixing tool. 6, the inclined surface 84 bites into the horizontal member 6 with the tightening force of one screw member 85 against one fixing member 81, so that the chair 1 can be reliably fixed. .

The present invention is not limited to the above-described embodiment. For example, in the case where the horizontal member has a single prismatic shape, the slider and the fixing means may be formed in a corresponding shape. Good. Further, in order to further prevent rattling of the chair supported by the horizontal member, fixing means other than the chair disposed at the end may be provided as appropriate. further,
When an optional member such as an armrest or a cup holder supported by a horizontal member is attached to a predetermined interval between adjacent chairs, a slider similar to the chair is provided for these optional members as well, If a convex portion or a concave portion corresponding to the engaging portion of the chair is formed, only the chair arranged at the end portion is fixed similarly to the above embodiment, and all members on the horizontal member are immovably fixed. be able to. Further, an optional member such as an armrest may be disposed on the outer side of the chair disposed at the end, and the optional member may be used as fixing means. In addition, the specific configuration of each unit is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0027]

The present invention is embodied in the form described above and has the following effects. That is, the mounting structure of the chair of the present invention, when mounting the chair of the temporary stand to the horizontal member, by fixing only the chair arranged at the end of the plurality of chairs to the horizontal member using the fixing means. , All chairs are restrained at predetermined positions. Therefore, since it is not necessary to fix each chair to the horizontal member with screws or the like, the chair can be attached and detached very easily. For this reason, the convenience of repeatedly installing and removing the temporary stand can be improved. Further, by preparing a personal chair, it is possible to give a sense of quality to the appearance of the temporary stand and quickly respond to a change in style of the temporary stand.

When the chair is provided with an insertion portion which allows the chair to slide only with respect to the chair by allowing the chair to be inserted into and removed from the chair, the chair is sequentially mounted on the chair. The chair can be easily inserted and removed since it can be slid from the end of the member and supported, and the fixing means should be such that only the movement of the chair in the longitudinal direction of the horizontal member is prohibited. The means can be simplified.

Further, when an engaging portion is formed between adjacent chairs to prevent the chairs from moving relative to each other, rattling of the chairs can be effectively prevented. In particular, when the engaging portion is composed of a convex portion protruding from the side edge portion of the chair toward the adjacent chair and a concave portion corresponding to the convex portion, it is possible to more reliably prevent the chair from shifting. Things. Furthermore, if the convex portion and the concave portion are formed in corresponding tapered shapes, engagement and disengagement thereof can be facilitated, and more secure prevention of displacement of the chair can be achieved.

When the horizontal member is supported on the support column via the bracket, and when the insertion portion allows the bracket to be inserted, the chair is slidably inserted into the horizontal member through the bracket without any trouble. Can be easily attached and detached. When the chair is composed of the chair main body and the slider and the insertion portion is formed in the slider, it is possible to simplify the manufacture of the chair and to make the horizontal member easy to slide. Further, when a channel-shaped slider accommodating portion is formed on the bottom surface side of the chair main body and the slider is accommodated in the slider accommodating portion, the appearance is kept good and the chair on the horizontal member is stabilized. You can also. In addition, when a pair of sliders are attached to the left and right side edges of the slider accommodating portion, the sliding movement of the chair can be stabilized, and the frictional resistance due to the sliding can be suppressed.

In the case where the fixing means is such that the cross member is sandwiched between the fixing member and the chair, and the pinching force is applied to the fixing member by the fixing tool to fix the chair to the cross member. Can fix the chair with a simple configuration. In particular, in the case where the horizontal member is a cylindrical member forming a pair in the front and rear, if the insertion portion is formed as a substantially eyeglass-shaped through hole through which the horizontal member can be inserted, stable and smooth sliding movement of the chair can be achieved. Can be realized. A specific configuration of the fixing means suitable for this case is that the fixing member is formed with an inclined surface that simultaneously contacts the facing surface of the pair of transverse members, and the fixing member is a screw member. Can be mentioned. According to this configuration, the inclined surface firmly bites from between the horizontal members by the fixing operation of the screw member, and a proper mounting state of the chair can be obtained. In addition, the release by the fixing member is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of a temporary stand to which an embodiment of the present invention is applied.

FIG. 2 is an enlarged perspective view showing a chair in the embodiment.

FIG. 3 is an exploded perspective view showing a chair arranged at an end of the embodiment in an exploded manner.

FIG. 4 is a right side view of the same.

FIG. 5 is a bottom view showing the chair in the embodiment.

FIG. 6 is an enlarged front view showing a part of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1A ... Chair 2 ... Chair main body 3 ... Slider 5 ... Prop 6 ... Horizontal member 7 ... Bracket 8 ... Fixing means 9 ... Leg structure 22 ... Slider accommodating part 22a ... Side edge part 24 ... Engaging part 25 ... Convex Part 26 ... concave part 31 ... insertion part 32 ... through hole 81 ... fixing member 82 ... base 83 ... contact part 84 ... inclined surface 85 ... screw member

Claims (13)

[Claims] 1. A plurality of chairs are detachably attached to a horizontal member constituting a leg structure of a temporary stand, wherein the plurality of chairs are arranged on the horizontal member along a longitudinal direction thereof. By fixing the chairs arranged at least at the ends at predetermined positions of the horizontal member using fixing means, all the chairs are restrained by the adjacent chairs and movement from the arrangement position is prohibited. A chair mounting structure, characterized in that: 2. A chair is provided with an insertion portion through which the transverse member is removably inserted along the longitudinal direction so that the chair can only slide and move along the longitudinal direction of the transverse member. The mounting structure for a chair according to claim 1, wherein: 3. A chair is provided with an engaging portion which can be immovably engaged with a chair adjacent to the chair, and a plurality of chairs are arranged closely together via the engaging portion. The chair mounting structure according to claim 1, wherein the chair mounting structure is arranged on a chair. 4. The chair according to claim 1, wherein the engaging portion comprises a convex portion protruding from a side edge portion of the chair toward the adjacent chair, and a concave portion corresponding to the convex portion of the adjacent chair. Item 3
The mounting structure of the described chair. 5. The convex portion has a tapered shape gradually narrowing toward the protruding end, and the concave portion gradually narrows toward the inside corresponding to the tapered shape of the convex portion. The chair mounting structure according to claim 4, wherein the chair mounting structure has a tapered shape. 6. The cross member is supported at its upper end via a bracket at the upper end of a column constituting a leg structure together with the cross member, and the insertion portion is formed of a horizontal member. 6. The chair mounting structure according to claim 2, wherein a bracket can be inserted along the longitudinal direction. 7. The chair according to claim 2, further comprising: a chair body; and a slider detachably attached to a bottom surface of the chair body, wherein the slider has the insertion portion. 7. The mounting structure of the chair according to 4, 5, or 6. 8. The chair according to claim 7, wherein a channel-shaped slider accommodating portion is formed on both sides of the chair so that the bottom surface is open, and the slider is accommodated in the slider accommodating portion. The mounting structure of the described chair. 9. The chair mounting structure according to claim 8, wherein a pair of sliders are mounted along side edges of the chair in the slider housing portions. 10. A fixing means comprising: a fixing member for sandwiching a transverse member between the chair and a chair; and a fixing device for applying a force of sandwiching the fixing member to fix the chair to the transverse member. Claims 1, 2, 3, 4, 5, 6,
The mounting structure of the chair according to 7, 8, or 9. 11. A fixing device, comprising: a screw member which is fastened to a chair and urges a fixing member in a direction in contact with a transverse member, wherein the fixing member has a base serving as a scaffold for rotating the screw member. 11. The chair mounting structure according to claim 10, further comprising: a contact portion which is pressed against the horizontal member by a fastening operation of the screw member and is mounted on the base so as to inhibit movement of the chair. . 12. A cylindrical member in which the horizontal members are arranged in a pair in parallel in the front-rear direction, and the insertion portion is opened at both side edges of the chair to insert the pair of horizontal members. 12. The chair mounting structure according to claim 11, wherein the mounting structure is a substantially eyeglass-shaped through-hole penetrating in a width direction of the chair so as to be able to be made. 13. The chair according to claim 12, wherein the abutting portion has an inclined surface that simultaneously and evenly contacts the inwardly facing surfaces of the pair of transverse members from below. Mounting structure.