JP2017221494A - Load support structure and furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a load support structure that can firmly connect a horizontal member with a leg member while reducing assembly man hours and eliminating looseness.SOLUTION: A load support structure is configured to include a horizontal member 4 extending horizontally, a leg member 3 installed on a floor and having a placing surface 33b with the horizontal member 4 placed thereon, and a pressing member 5 having an engagement piece 51 and an engaging bolt 6 and formed of an arrangement space where the horizontal member 4 is arranged between the placing surface 33b and itself. The leg member 3 includes an engaged recess 35 formed in the part being more rear side than the placing surface 33b and engaged to the engagement piece 51 in an upper surface of the leg member 3, and an engaging nut 34 formed below the placing surface 33b and engaging with the engaging bolt 6 in a front face in the leg member 3. The pressing member 5 has a pressing plate 52 for triggering elastic force to the horizontal member 4 in the longitudinal direction X1 with the engagement to the engaging nut 34 of the engaging bolt 6, to regulate the movement of the horizontal member 4 to the longitudinal direction X1.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a load support structure and a fixture.

Conventionally, for example, as a fixture such as a chair, a load support structure that supports a load of a chair main body as shown in, for example, Patent Documents 1 to 4 is known.
Some of these chairs include a horizontal member that forms one load support structure in cooperation with leg members that are erected on the installation surface. Leg members and horizontal members are made of high-strength materials such as aluminum die-casting, extruded aluminum materials, or bent steel plates, and are connected so that there is no rattling as much as possible. The structure which is connected by the means and can stably receive the load composed of the weights of a large number of users.

Here, many chairs having the same structure are generally installed in a wide space such as a theater or a stadium. Therefore, it is preferable that the structure is such that the connecting work between the leg member and the horizontal member in the load supporting structure that supports the chair body as described above can be performed efficiently. Therefore, Patent Documents 1 and 2 disclose a configuration in which a horizontal member is supported by being sandwiched from above and below together with a leg member and a member positioned higher than the horizontal member. In this case, it is necessary to insert the fixing bolt from below in order to generate a fastening force in the vertical direction, and there is a problem in terms of workability. In addition, there is a design limitation that the position of the leg member and the position of the upper member such as the seat and the armrest must be matched.
On the other hand, Patent Documents 3 and 4 disclose a configuration in which a mounting member for a horizontal member that surrounds the horizontal member from four directions is formed on the upper end portion of the leg member. By adopting such a configuration, the insertion direction of the bolt is not restricted in the front-rear direction, and the position of the upper member is not restricted by the position of the leg member.

Japanese Utility Model Publication No. 53-021294 Japanese Utility Model Publication No.59-001556 No. 04-002594 Japanese Patent No. 2743788

However, the load support structure used in the conventional fixture has the following problems.
That is, in the case of the structure shown in Patent Documents 3 and 4, just by surrounding the horizontal member with the mounting member, there are manufacturing errors and play between the horizontal member and the mounting member. It is difficult in terms of design to hold the horizontal member accurately and firmly with only the mounting member.
In addition, it is conceivable to increase the number of bolts when holding the horizontal member firmly, but there is a problem that the fastening state is likely to be distorted due to an increase in assembly man-hours or a slight shift in design dimensions. There was room for improvement in that regard.

  The present invention has been made in view of the above-described problems, and is capable of reducing the number of assembling steps between the horizontal member and the leg member, and capable of firmly connecting without looseness, and The purpose is to provide fixtures.

  In order to achieve the above object, a load support structure according to the present invention includes a horizontal member extending in a horizontal direction, a leg member that is installed on an installation surface and has a mounting surface on which the horizontal member is mounted; A presser member having a first engagement portion and a second engagement portion, and having a placement space in which the horizontal member is placed between the placement surface and the leg member. On the upper surface of the leg member, the first engaged portion formed at the rear side of the mounting surface and engaged with the first engaging portion, and the front surface of the leg member, A second engaged portion formed below the placement surface and engaged with the second engaging portion, wherein the pressing member is connected to the second engaged portion of the second engaging portion. In accordance with the engagement, there is a holding portion that restricts the movement of the horizontal member in the front-rear direction by applying an elastic force to the horizontal member in the front-rear direction. It is a symptom.

  A fixture according to the present invention is characterized by including the above-described load support structure that supports a supported body.

In the present invention, the first engaging portion is engaged with the first engaged portion, the second engaging portion is engaged with the second engaged portion, and the presser member is provided on the upper portion of the leg member. The horizontal member arranged in the arrangement space formed between the presser member and the leg member is pressed from the front to the rear by the elastic force of the presser part of the presser member, and the movement in the front-rear direction is performed. It is supported by the leg member in a restricted state. As a result, the horizontal member can be firmly supported with respect to the leg member without looseness only by the engaging force when the second engaging portion of the pressing member is engaged with the second engaged portion.
Further, since the presser member is arranged so as to cross over the horizontal member, the engagement structure of the first engagement portion of the presser member and the first engaged portion of the leg member is at least the first engagement. Since it suffices that the part does not come out upward, the assembling work can be easily performed, and the number of assembling steps and the number of parts can be reduced.

  In the load support structure according to the present invention, the horizontal member may be disposed so as to protrude forward from the mounting surface in the state where the horizontal member is mounted on the mounting surface. preferable.

  In this case, since the horizontal member is placed on the placement surface so as to protrude forward from the placement surface, the second engaged portion on the front surface of the leg member and the press member A gap is formed between the presser part and the presser part can be elastically deformed within the range of the gap and pressed against the horizontal member by the presser part.

  Further, in the load supporting structure according to the present invention, the first engaged portion is arranged spaced apart upward so as to cover a portion of the upper surface of the leg member that is located on the rear side of the mounting surface. It is preferable to have an upper restriction piece to be opened and to open toward the front.

In the present invention, since the first engaged portion opens toward the front which is the mounting surface side, the work of engaging the presser member with the leg member is easy, and other parts for engagement, etc. Therefore, the member cost can be reduced.
And since the 1st engaging part is engaged in the state covered from the upper part by the 1st to-be-engaged part, it can prevent that a pressing member remove | deviates with respect to a leg member.

  In the load support structure according to the present invention, the first engagement portion includes a first engagement piece positioned below the upper restriction piece and a second engagement that can contact the front end of the upper restriction piece. It is preferable to have a piece.

  In this case, for example, when the engagement structure of the second engagement portion of the presser member and the second engaged portion of the leg member is bolt fastening, the presser member is engaged with the second engagement as the bolt is tightened. Since the upper end of the presser part tilts backward with the part as a fulcrum, the first engagement piece is covered at the front end of the first engaged part with the first engaged part covered from above. The two engaging pieces are engaged in a contact state. Therefore, the engagement strength between the leg member and the pressing member can be further improved, and the horizontal member can be firmly supported with no backlash with respect to the leg member.

  In the load support structure according to the present invention, it is preferable that the leg member is provided with a contact surface that contacts the rear end of the horizontal member.

  In this case, since the contact surface is formed between the mounting surface and the first engaged portion, the rear surface of the horizontal member when the presser portion of the presser member is elastically deformed rearward. Comes into contact with the contact surface, and movement toward the first engaged portion side is restricted. Therefore, it is possible to reliably maintain the state in which the horizontal member extends the front end from the placement surface, and the engagement force that engages the second engagement portion of the presser member with the second engaged portion of the leg member. Can be reliably converted into a force that elastically deforms the presser member.

  Further, in the load supporting structure according to the present invention, the first engaged portion is arranged spaced apart upward so as to cover a portion of the upper surface of the leg member that is located on the rear side of the mounting surface. And has an opening that opens toward the front, and the leg member is provided with an upright wall that faces the opening and contacts the rear end of the horizontal member, The first engaging portion of the presser member includes a first engaging piece that engages with the engaged recessed portion and a second engaging piece that extends along the upright wall, in the longitudinal direction of the horizontal member. It is preferable that it is L-shaped when viewed from the top.

In the present invention, since the first engaged portion opens toward the front which is the mounting surface side, the work of engaging the presser member with the leg member is easy, and other parts for engagement, etc. Therefore, the member cost can be reduced.
And since the standing wall is provided between the mounting surface and the first engaged portion, the rear surface of the horizontal member becomes the standing wall when the pressing portion of the pressing member is elastically deformed rearward. Abutting and movement toward the first engaged portion side is restricted. Therefore, it is possible to reliably maintain the state in which the horizontal member extends the front end from the placement surface, and the engagement force that engages the second engagement portion of the presser member with the second engaged portion of the leg member. Can be reliably converted into a force that elastically deforms the presser member.

  For example, when the engagement structure of the second engagement portion of the presser member and the second engaged portion of the leg member is bolt fastening, the presser member supports the second engagement portion as the bolt is tightened. Therefore, the first engagement piece engaged with the opening of the engaged member is pressed from the lower side against the upper restriction piece, and the second engagement piece is further against the rear surface of the standing wall. Therefore, the first engaging portion is more closely engaged with the first engaged portion. Therefore, the engagement strength between the leg member and the pressing member can be further improved, and the horizontal member can be firmly supported with no backlash with respect to the leg member.

  According to the load support structure and the fixture of the present invention, the horizontal member and the leg member can be reduced in assembly man-hours, and can be firmly connected without backlash.

It is a perspective view which shows the whole structure of the chair by embodiment of this invention. It is the partially broken perspective view which shows the whole structure of the horizontal member in a load support structure. It is the front view which looked at a part of load support structure shown in FIG. 1 from the front. It is an AA arrow directional view shown in FIG. 3, Comprising: It is a side view of a load support structure. It is a perspective view which shows the whole structure of the leg member in a load support structure. FIG. 4 is a cross-sectional view taken along line B-B shown in FIG. 3, illustrating a state before the presser plate of the presser member is tightened with the engagement bolt. It is the top view seen from the back side which shows the structure of the reinforcement board of a leg member. It is CC line arrow directional view shown in FIG. 7, Comprising: It is a side view of the reinforcement board of a leg member. It is a side view which shows the structure of a pressing member. It is a figure which shows the state which fastened the presser plate of the pressing member with the engagement volt | bolt, Comprising: It is a figure corresponding to FIG. It is a fragmentary sectional view of the load support structure by a modification, Comprising: It is a figure corresponding to FIG.

  Hereinafter, a load support structure and a fixture according to embodiments of the present invention will be described with reference to the drawings.

The load supporting structure 10 according to the present embodiment shown in FIG. 1 is used for a seat 1 (furniture) such as a spectator seat such as a theater or a stadium, a seat in a working space such as an office, or a bench in a park or the like. It is used. The chair 1 of the present embodiment includes a plurality of (here, three) chair main bodies 2 (supported bodies) constituting a seat portion, a load support structure 10 that supports the plurality of chair main bodies 2 from below, The load supporting structure 10 is fixed and supported on the floor surface F (installation surface).
Here, in the present embodiment, the front when seated on the chair 1 is referred to as the front and the front, and the opposite side of the front is referred to as the rear and the rear. In addition, a direction orthogonal to the front-rear direction X1 in a plan view viewed from above is referred to as a lateral direction X2.

  The chair body 2 includes a seat plate 21 and a back plate 22 fixed to the back side of the seat plate 21, and a load support structure via a support hardware (not shown) that supports the seat plate 21 and the back plate 22. The body 10 is supported by a horizontal member 4 described later.

The load support structure 10 includes a pair of leg members 3 that are fixed upright on the floor surface F, and a horizontal member 4 that is supported by the upper end of the leg member 3 and extends along the horizontal direction X2 (horizontal direction). And a presser member 5 that engages the leg member 3 and the horizontal member 4.
The leg member 3, the horizontal member 4, and the presser member 5 constituting the load supporting structure 10 are all formed of a high-strength material such as an aluminum die cast, an aluminum extruded material, or a bent steel plate.

  As shown in FIG. 2, the horizontal member 4 is a tubular tube having a rectangular cross section, and the width dimension of the upper wall 41 and the lower wall 42 is shorter than the height dimension of the front wall 43 and the rear wall 44. ing. The length of the extending direction (lateral direction X2) of the horizontal member 4 is set to an appropriate length that allows the three chair bodies 2 to be arranged at predetermined intervals in the horizontal direction X2 (see FIG. 1). ).

As shown in FIGS. 3 to 5, the leg member 3 includes a base plate 30 that is grounded to the floor surface F, a pair of side plates 31 and 31 that are erected on the base plate 30 and arranged to face each other. A back plate 32 that covers the back side of the side plates 31 and 31 and a reinforcing plate 33 that covers the upper front of the side plates 31 and 31 are provided.
The pair of side plates 31, 31 has a notch 31 a (see FIG. 6) formed on the upper front side thereof. As shown in FIG. 6, the cutout 31a has a cutout upper end 31b facing upward extending in the horizontal direction and a cutout front end 31c facing forward extending in the vertical direction.

  As shown in FIGS. 6 to 8, the reinforcing plate 33 is in contact with and fixed to the mounting wall 33 </ b> A that is in contact with and fixed to the notch upper ends 31 b of the pair of side plates 31 and 31, and the pair of notch front ends 31 c. It has a standing wall 33B and a front end wall 33C that comes into contact with and is fixed to a front end 31d that does not include the notch 31a of the pair of side plates 31.

  As shown in FIG. 6, the standing wall 33 </ b> B protrudes upward from the upper end of the side plate 31 and the upper regulating piece 35 </ b> B of the engaged recess 35 described later. A bolt hole 33a penetrating in the thickness direction is formed in the front end wall 33C, and an engagement nut 34 (second engaged portion) disposed coaxially with the bolt hole 33a is fixed to the back surface of the front end wall 33C. ing. The bolt holes 33a and the engaging nuts 34 are formed at positions below the placement surface 33b of the placement wall 33A.

  The length dimension in the front-rear direction X1 on the placement surface 33b of the placement wall 33A is set smaller than the width dimension of the upper wall 41 and the lower wall 42 of the horizontal member 4. That is, when the horizontal member 4 is placed on the placement surface 33b with the rear wall 44 in contact with the standing wall 33B, the front wall 43 of the horizontal member 4 is more than the front end wall 33C of the reinforcing plate 33. Is also arranged in a state of protruding forward.

  The back plate 32 has a protruding portion 35A protruding upward and an upper regulating piece 35B extending forward from the upper end of the protruding portion 35A. The upper restricting piece 35B is disposed so as to be spaced apart upward so as to cover a portion of the upper surface of the leg member 3 located on the rear side of the placement surface 33b (standing wall 33B). And the to-be-engaged recessed part 35 (1st to-be-engaged part) which has the opening part 35c opened toward the front is comprised by the upper end of the side plate 31 of the leg member 3, the protrusion part 35A, and the upper side control piece 35B. Yes. A predetermined gap (first gap S <b> 1) is formed between the upper regulating piece 35 </ b> B of the engaged recess 35 and the upper end of the side plate 31. The separation between the lower surface 35a of the upper regulating piece 35B and the side plate 31 in the first gap S1 is set to a dimension that is equal to or slightly larger than the thickness dimension of the pressing member 5. The front end 35b of the upper regulating piece 35B is separated from the rear surface of the standing wall 33B of the reinforcing plate 33 with a dimension equal to or greater than the thickness dimension of the pressing member 5.

As shown in FIGS. 6 and 9, the presser member 5 includes an L-shaped engagement piece 51 (first engagement portion) engaged with the engaged recess 35 on one end side, and an engagement on the other end side. Presser plate 52 (presser part) having a second bolt hole 52a through which the engagement bolt 6 (second engagement part) engaged by screwing with the mating nut 34 can be inserted, the engagement piece 51 and the presser. And a connecting plate 53 for connecting the plates 52.
The engagement piece 51 includes a first engagement piece 51A that engages with the engaged recess 35 and a second engagement piece 51B that extends along the upright wall 33B, as viewed from the longitudinal direction of the horizontal member 4. It has a letter shape.

As shown in FIG. 6, the presser plate 52 is disposed so that the plate surface is parallel to the front end wall 33 </ b> C of the reinforcing plate 33 and is spaced from the front end wall 33 </ b> C (second gap S <b> 2). Yes. The distance between the pressing plate 52 and the front end wall 33C is set to a dimension corresponding to the width dimension of the horizontal member 4 (the width dimension of the upper wall 41 and the lower wall 42).
The connecting plate 53 is disposed in parallel to the placement wall 33A of the reinforcing plate 33 with a predetermined interval. At this time, the distance between the connecting plate 53 and the mounting wall 33A is set to a dimension corresponding to the height dimension of the horizontal member 4 (height dimension of the front wall 43 and the rear wall 44).

  The presser member 5 configured in this manner is tightened by the first engagement piece 51A of the engagement piece 51 engaging the engaged recess 35 and the engagement bolt 6 screwing into the engagement nut 34 part. In this state, the elastically deformed presser plate 52 restricts the movement of the horizontal member 4 located in the arrangement space R in the front-rear direction X1.

Next, the method of fixing the horizontal member 4 to the leg member 3 and the operation of the load support structure 10 in the load support structure 10 described above will be described in detail based on the drawings.
As shown in FIG. 1, the pair of leg members 3 is attached to the base plate 30 at predetermined positions on the floor surface F with bolts (not shown). Next, the pressing member 5 is engaged with the upper part of each leg member 3. Specifically, first, as shown in FIG. 4, the engagement piece 51 of the presser member 5 is engaged with the engaged recess 35 of the leg member 3. At this time, there is an arrangement space R in which the horizontal member 4 is arranged between the placement surface 33 b and the contact surface 33 c of the reinforcing plate 33 in the leg member 3 and the press plate 52 and the connection plate 53 of the press member 5. Will be formed.

Then, as shown in FIG. 1, the horizontal member 4 is inserted into each of the arrangement spaces R formed on the upper portions of the pair of leg members 3 with the longitudinal direction being set in the horizontal direction X2. The position of the leg member 3 in the lateral direction X2 with respect to the horizontal member 4 is an arbitrary position set in advance. In the horizontal member 4 arranged in the arrangement space R as described above, the lower wall 42 is placed on the placement surface 33b and the rear wall 44 and the contact surface 33c face each other as shown in FIG. Are arranged as follows.
At this time, since the horizontal member 4 is placed on the placement surface 33b so as to protrude forward from the placement surface 33b, the holding plate 52 and the front end wall 33C of the leg member 3 in this state are arranged. Are located substantially parallel and spaced apart from each other with a second gap S2.

  Next, the engaging bolt 6 is screwed into the engaging nut 34 formed on the reinforcing plate 33 while being inserted into the second bolt hole 52 a of the presser plate 52 and tightened. When the engagement bolt 6 is further tightened, as shown in FIG. 10, the holding plate 52 is elastically deformed in the range of the second gap S2 with the connection portion with the connecting plate 53 as the first fulcrum P1, and the lower end portion 5a thereof is It approaches toward the front end wall 33C and the interval of the second gap S2 decreases. Thereby, the horizontal member 4 arranged in the arrangement space R formed between the pressing member 5 and the leg member 3 is pressed from the front toward the rear by the elastic force of the pressing plate 52.

At this time, since the standing wall 33B is provided at the rear end of the mounting surface 33b, the rear wall 44 (rear surface) of the horizontal member 4 is raised when the holding plate 52 is elastically deformed rearward. It abuts against the abutment surface 33c of 33B and is supported by the leg member 3 in a state where movement of the horizontal member 4 to the rear side is restricted.
Thereby, the horizontal member 4 can be firmly supported with respect to the leg member 3 without looseness only by the engagement force when the engagement bolt 6 is screwed into the engagement nut 34 and tightened.

  In the present embodiment, since the connecting plate 53 of the presser member 5 is arranged so as to bridge over the horizontal member 4, the L-shaped engagement piece 51 of the presser member 5 and the cover of the leg member 3 are covered. The engagement structure with the engagement recess 35 may be a simple structure provided with the engagement recess 35 with at least the upper restriction piece 35B arranged so that the engagement piece 51 does not come out upward. It becomes possible to reduce man-hours and the number of parts.

Moreover, since the to-be-engaged recessed part 35 is opened toward the front which becomes the mounting surface 33b side, the load supporting structure 10 of this Embodiment engages the pressing member 5 with respect to the leg member 3. FIG. Since the operation is easy and no separate parts for engagement are required, the member cost can be reduced.
And since the 1st engagement piece 51A of the engagement piece 51 is engaged in the state covered from the upper side by the upper side regulation piece 35B, it can prevent that the pressing member 5 remove | deviates with respect to the leg member 3. FIG. .

Further, when the bolts are fastened by the engaging bolts 6 of the presser member 5 and the engaging nuts 34 of the leg members 3 as in the present embodiment, the presser plate 52 is connected to the connecting plate 53 as the engaging bolts 6 are tightened. The connecting portion is tilted backward with the first fulcrum P1.
The operation at this time will be described in more detail. In the present embodiment, since the horizontal member 4 protrudes forward from the mounting surface 33b, when the engagement bolt 6 is screwed into the engagement nut 34 and tightened, the presser plate is in the initial stage of the tightening. 52, only the lower end portion 5a below the portion corresponding to the vicinity of the lower surface of the horizontal member 4 at the height position (third fulcrum P3) is elastically deformed rearward. Therefore, as shown in FIG. 10, the width dimension in the front-rear direction X1 of the second gap S2 formed between the presser plate 52 and the front end wall 33C of the reinforcing plate 33 gradually decreases from the top to the bottom. Thereby, the lower part of the horizontal member 4 is pressed backward by the pressing member 5. Then, the elastic deformation margin around the first fulcrum P1 of the lower end portion 5a of the presser plate 52 gradually decreases.

When the engagement bolt 6 is further tightened, the upper end of the presser plate 52 is located rearward with the entire presser member 5 as a fulcrum in the vicinity of the bolt hole 52a into which the engagement bolt 6 is inserted (this is referred to as a second fulcrum P2). Tilt in the direction toward. As a result, the front wall 43 of the horizontal member 4 is pressed at a portion (upper portion 5b) above the third fulcrum P3 of the presser plate 52, and the connecting plate 53 of the presser portion 5 is deformed downward to be horizontally mounted. The upper wall 41 of the material 4 is pressed. At this time, since the rear wall 44 of the horizontal member 4 is in contact with the contact surface 33c of the standing wall 33B of the leg 3, the room for elastic displacement of the upper portion 5b of the presser plate 52 is small.
Further, as the presser member 5 is tilted, the engagement piece 51 is displaced rearward, and the second engagement piece 51B is moved upward while keeping the first engagement piece 51A and the upper restriction piece 35B substantially parallel to each other. It contacts the front end 35b of the restricting piece 35B. Therefore, the engagement strength between the leg member 3 and the pressing member 5 can be further improved, and the horizontal member 4 can be firmly supported with respect to the leg member 3 without rattling.

  Further, in the present embodiment, the leg member 3 is provided with the upright wall 33B (contact surface 33c) that contacts the rear end of the horizontal member 4, so that the horizontal member 4 mounts the front end of the front wall 43. The state of extending from the mounting surface 33b can be reliably maintained, and the engagement force for engaging the engagement bolt 6 with the engagement nut 34 of the leg member 3 is reliably converted to the force for elastically deforming the presser member 5. can do.

  As described above, in the load support structure and the fixture according to the present embodiment, the horizontal member 4 and the leg member 3 can be reduced in assembly man-hours and can be connected firmly without backlash.

As mentioned above, although embodiment of the load support structure by this invention and the fixture was demonstrated, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in the present embodiment, the horizontal member 4 is disposed in the arrangement space R so as to protrude forward from the placement surface 33b in a state of being placed on the placement surface 33b. There is no limit.
For example, the load support structure 10A according to the modification shown in FIG. 11 has a shape in which the horizontal member 4 does not protrude forward from the mounting surface 33b in a state where the rear wall 44 is in contact with the standing wall 33B. A spring member 54 made of a leaf spring is attached to the rear surface of the plate 52 so as to be positioned in the arrangement space R. The spring member 54 is biased toward the rear, that is, toward the horizontal member 4. In this case, by tightening the engagement bolt 6 to the engagement nut 34, the horizontal member 4 positioned in the arrangement space R can be pressed rearward by the biasing force of the spring, and the movement in the front-rear direction X1 can be restricted. it can.
In addition, the shape of the spring member 54 is not limited to the said modification, The spring member of another form may be sufficient. Further, an elastic member such as elastically deformable rubber or foam may be provided on the rear surface of the pressing plate 52.

  In this embodiment, the presser plate 52 is elastically deformed rearward by tightening the engagement bolt 6. However, with respect to other actions in the presser portion 5, the shape of the engagement piece 51, the engaged recess 35. Therefore, the present invention is not limited to the above-described embodiment.

  Moreover, in this Embodiment, although it is set as the structure which provided the standing wall 33B in the leg member 3, this standing wall 33B can also be abbreviate | omitted. In short, the first engaging portion at one end (rear end) of the presser member 5 engages with the first engaged portion provided at the upper end of the leg member 3, and the second end of the presser member 5 at the other end (front end). In a state where the engaging portion is engaged with the second engaged portion of the leg member 3, the presser plate is elastically deformed and the movement of the horizontal member 4 positioned in the arrangement space in the arrangement space is restricted by the presser plate. It only has to be configured to do so.

  Therefore, the engagement structure between the second engagement portion and the second engaged portion is not limited to the screwed engagement by the bolt and nut as in the present embodiment, and other engagement forms are also possible. It is also possible to adopt. Further, the engagement structure of the first engagement portion and the first engaged portion is the first engagement piece of the L-shaped engagement piece 51 with respect to the engagement recessed portion 35 as in the present embodiment. It is not limited to the structure which engages 51A. That is, in the present embodiment, by tightening the engagement bolt 6 to the engagement nut 34, the first engagement piece 51 </ b> A is engaged with the engaged recess 51 by tilting the presser member 5 while elastically deforming the presser plate 52. 35 is configured to abut against the upper restricting piece 35B of the upper side from the lower side, but the engagement restricts the upward movement of the first engaging piece 51A as the presser member 5 tilts in this way. Instead of the configuration, the first engaging portion of the presser member and the first engaged portion of the leg member may be engaged before the presser member 5 is tilted.

  In the present embodiment, one horizontal member 4 is supported by the two leg members 3, 3. However, the leg member 3 that supports one horizontal member 4 is supported. The quantity can be set arbitrarily.

Further, in the present embodiment, the leg member 3 is fixed in a state of being erected on the floor surface F via the base plate 30, but the installation position of the leg member 3 is limited to the floor surface F. There is nothing. For example, when a step is provided in the height of a chair arranged in the front and rear in a stadium or the like, the side surface (front surface) of the step portion positioned on the rear side of the chair may be used as the installation surface of the leg member 3. In this case, as a shape of the leg member, the leg member is bent in an L shape in a side view, and the placement surface 33b located at the upper part of the leg member is arranged so as to be horizontal as in the above-described embodiment. can do.
Further, the leg member 3 is not limited to being fixed to the floor surface F by the base plate 30, and may be a movable fixture provided with casters instead of the base plate 30, for example.

  Further, the configuration of the chair body 2 is not limited to the above-described embodiment. For example, in the present embodiment, the back plate 22 is provided on the chair body 2, but the chair body may be composed of only the seat plate 21 without the back plate 22.

  Moreover, in this Embodiment, although the chair 1 is made into object as the fixture which has a to-be-supported body, and the to-be-supported body supported by the leg member 3 is made into the chair main body 2, even if it is a fixture which has another to-be-supported body, good. For example, a fixture such as a table whose supported body is a top plate can be applied.

  In addition, it is possible to appropriately replace the components in the above-described embodiments with known components without departing from the spirit of the present invention.

1 Chair (Furniture)
2 Chair body (supported body)
3 Leg member 4 Horizontal member 5 Holding member 6 Engagement bolt (second engagement part)
10, 10A Load support structure 33 Reinforcement plate 33b Placement surface 33c Contact surface 33A Placement wall 33B Standing wall 33C Front end wall 34 Engagement nut (second engaged part)
35 Engaged recess (first engaged part)
35c Opening 35B Upper restriction piece 51 Engagement piece (first engagement part)
52 Presser plate (presser part)
53 Connecting plate 54 Spring member F Floor (installation surface)
R Arrangement space S1 First gap S2 Second gap X1 Front-rear direction X2 Lateral direction (horizontal direction)

Claims (7)

A horizontal member extending in the horizontal direction;
A leg member installed on an installation surface and having a mounting surface on which the horizontal member is mounted;
A presser member having a first engagement portion, a second engagement portion, and an arrangement space in which the horizontal member is arranged between the placement surface,
The leg member is
On the upper surface of the leg member, a first engaged portion that is formed at a site on the rear side of the mounting surface and is engaged with the first engaging portion;
A second engaged portion that is formed below the placement surface and engaged with the second engaging portion on the front surface of the leg member,
The holding member causes an elastic force to act on the horizontal member in the front-rear direction along with the engagement of the second engagement portion with the second engaged portion, so that the front-rear direction of the horizontal member A load supporting structure characterized by having a presser part for restricting movement of the load.   2. The load support structure according to claim 1, wherein the horizontal member protrudes forward from the placement surface in a state of being placed on the placement surface in the placement space. body.   The first engaged portion has an upper restricting piece that is spaced apart upward so as to cover a portion of the upper surface of the leg member that is located on the rear side of the mounting surface, and facing forward. The load supporting structure according to claim 1, wherein the load supporting structure is opened.   The first engagement portion includes a first engagement piece positioned below the upper restriction piece, and a second engagement piece that can contact the front end of the upper restriction piece. The load support structure according to claim 3.   The load support structure according to any one of claims 1 to 4, wherein the leg member is provided with a contact surface that contacts a rear end of the horizontal member. The first engaged portion has an upper restricting piece that is spaced apart upward so as to cover a portion of the upper surface of the leg member that is located on the rear side of the mounting surface, and facing forward. Have an opening that opens,
The leg member is provided with an upright wall that faces the opening and contacts the rear end of the horizontal member,
The first engaging portion of the presser member includes a first engaging piece that engages with the engaged recessed portion and a second engaging piece that extends along the upright wall, in the longitudinal direction of the horizontal member. The load supporting structure according to claim 1, wherein the load supporting structure is L-shaped when viewed from the top.   A fixture comprising the load support structure according to any one of claims 1 to 6, which supports a supported body.

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