JP2008061783A - Lobby chair support device - Google Patents

Abstract

In a lobby chair having a structure in which a plurality of chair bodies are supported by a common leg body, the chair body can be firmly attached to the leg body via a bracket, but the appearance is refreshed. Provided is a support device for a lobby chair.
A lobby chair having a structure in which a plurality of chair bodies 1 are supported by a common leg body 2, the chair body having a frame in which a seat support portion 13 and a back support portion 14 are integrated, and the leg body. The support rod 11 is horizontally supported by a plurality of support legs 10, and a seat support portion is placed on and connected to the upper edges of a pair of left and right brackets 12 fixed to the support rod.
[Selection] Figure 1

Description

  The present invention relates to a lobby chair support device, and more particularly to a lobby chair support device having a structure in which a plurality of chair bodies are supported by a common leg.

  Conventionally, various lobby chairs having a structure in which a plurality of chair bodies are supported by a common leg are provided. For example, Patent Document 1 discloses a structure in which three chairs are attached to a horizontal frame that supports both ends with a pair of left and right support legs via brackets. Here, the horizontal frame is configured by a round pipe, a bracket is fixed to the horizontal frame, a seat body is attached to the seat mounting portion of the bracket, and a backrest is attached to the backrest mounting portion of the back.

  That is, the bracket is formed with a seat mounting piece at the upper edge of the board and a back mounting piece at the rear edge of the board as a seat mounting part and a back mounting part, and on the upper surface of the seat mounting piece. The seat frame of the seat body is screwed, and the back frame of the backrest is screwed to the back of the backrest mounting piece. Therefore, since the seat frame and the back frame are separately attached to the bracket, the seat frame and the back frame are separated. Therefore, in order to increase the rigidity and strength of the frame, the vertical dimension of the backrest mounting piece is increased. It must be ensured, the mounting structure is exposed, and the appearance is impaired. In particular, when viewed from behind the backrest, the connecting portion between the back frame and the bracket is exposed, which makes it unsightly.

Patent Document 2 discloses a structure in which a plurality of chairs in which a seat portion and a backrest portion are integrated are fixed to a common connecting beam. In the chair described in Patent Document 2, an insertion pipe projecting from a part of the lower surface of the seat portion, in which the seat portion and the backrest portion are integrated, is inserted into the insertion hole of the connecting beam, and from below. The bolts are attached so as to be screwed into the insertion pipes and pulled. However, it is inevitable that the support structure of the chair and the connecting beam will be insufficient in strength.
JP 2006-187534 A JP-A-4-341215

  Therefore, in view of the above-described situation, the present invention intends to solve the problem in which a chair is firmly attached to a leg via a bracket in a lobby chair having a structure in which a plurality of chairs are supported by a common leg. The object is to provide a support device for a lobby chair that can be made to have a clean appearance despite being able to.

  In order to solve the above-mentioned problems, the present invention is a lobby chair having a structure in which a plurality of chair bodies are supported by a common leg, and the chair body has a frame in which a seat support portion and a back support portion are integrated. The leg body is a support body horizontally supported by a plurality of support legs, and the seat support portion is placed and connected to the upper edges of a pair of left and right brackets fixed to the support collar. The lobby chair supporting device is configured as follows.

  Here, the bracket has a band-shaped mounting plate for fixing the seat support portion on the upper edge while fixing the U-shaped notch portion formed on the lower end portion in a state of being fitted to the support rod. It is preferable that it is formed (claim 2).

  More specifically, the bracket has an upper edge shape that follows the shape of the lower surface of the seat support portion on the upper edge of a vertical substrate that is substantially triangular in a side view, and is attached in a strip shape from the upper edge to one side. Forming a plate, forming a U-shaped cut-away side-view notch that matches the upper shape of the support rod at the bottom, and welding a half-cylinder member that matches the shape of the notch to the substrate; It is more preferable that the projection is provided on the side opposite to the mounting plate.

  The leg body has a bifurcated structure with leg rods at the front and rear, a support leg having a substantially U-shaped engaging portion opened upward at the center of the upper end, and a cross-sectional shape having a major axis in the vertical direction. The support rod is composed of an oval pipe member having a pair of left and right support legs, and the both ends of the support rod are fitted with the lower half of the support rod dropped from above, and the side view U is viewed from above. A character-shaped presser member is fitted, the presser member is fastened to a support leg with a screw, and the support rod is fixed in a holding state (claim 4).

  In the lobby chair support device according to the first aspect of the present invention, since the chair body has a frame in which the seat support portion and the back support portion are integrated, the left and right sides fixed to the support rod of the leg body A chair body can be firmly attached by placing and connecting the seat support portion to the upper edges of a pair of brackets, and the back support portion of the frame of the chair body is integrated with the seat support portion. Therefore, it is not necessary to attach the back support portion to the bracket, and therefore there is no connection portion to the bracket. Therefore, the appearance is refreshed, and the appearance from the back is greatly improved. In addition, by changing the shape of the bracket, the inclination angle of the seat portion and the backrest portion can be adjusted.

  According to a second aspect of the present invention, the bracket is fixed in a state in which a side-viewed U-shaped notch formed at the lower end is fitted to the support rod, and a belt-like shape for attaching the seat support to the upper edge. Since the mounting plate is formed, the structure is simple and the appearance is refreshing.

  According to claim 3, in a state where the lower surface of the seat support portion is mounted on and attached to a belt-like attachment plate formed on the upper edge of a vertical substrate that is substantially triangular in a side view of the bracket, the bracket and the seat support portion Since they are integrated in appearance, they are excellent in appearance. Further, a U-shaped cut-out portion that matches the upper shape of the support rod is formed at the lower portion of the bracket substrate, and a half-cylinder member that matches the shape of the notch portion is welded to the substrate, and the attachment By projecting on the side opposite to the plate, the mounting strength to the support rod is increased. Furthermore, by directing the mounting plate to the outside of the chair body, the seat support portion can be easily mounted, and the half cylinder member faces the inside of the chair body, so that it does not stand out and does not impair the appearance. .

  According to the fourth aspect of the present invention, the support rod can be surely supported in a horizontal state by the pair of left and right support legs, and the support rod is composed of an oval pipe member whose cross-sectional shape has a long diameter in the vertical direction. Is fitted to the engaging part of the support leg, the presser member is fitted from above, the support member is rotated by simply tightening the presser member to the support leg with a screw and fixing the support rod in the holding state. Therefore, even if the chair body is attached to the support rod, sufficient support strength can be secured.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. FIG. 1 is a side view of a lobby chair according to the present invention, FIGS. 2 to 11 show details of each part, in which 1 is a chair body, 2 is a leg, 3 is an armrest, 4 is a main frame member, 5 -7 is a recumbent, 8 is a seat part, 9 is a backrest part, 10 is a support leg, 11 is a support rod, 12 shows the bracket, respectively.

  The lobby chair according to the present invention has a structure in which a plurality of chair bodies 1,... Are supported by a common leg 2. In the present embodiment, three chair bodies 1,. And support. Here, as shown in FIGS. 1 to 5, the chair body 1 has a pair of left and right main frame members 4, 4 that are substantially L-shaped in side view, and between the lower front and rear ends of the main frame members 4, 4. Further, horizontal frames 5, 6 and 7 made of an aluminum extrusion mold are connected to each other between the upper ends to form a frame, and a seat portion 8 and a backrest portion 9 are attached to the frame. Moreover, the said leg 2 is the structure which supported the both ends of the support rod 11 in the horizontal state with the bifurcated support legs 10 and 10 distribute | arranged to right and left, as shown in FIGS. 1-3. And it has the structure which supports the main frame members 4 and 4 of each said chair body 1 with the left-right paired brackets 12 and 12 fixed to the said support rod 11. FIG. In addition, the said armrest part 3 is directly attached to the said support rod 11 located between the adjacent chair bodies 1 and 1 or a side edge part as needed.

  More specifically, the main frame member 4 constituting the frame of the chair body 1 is an integrally formed member made of aluminum die casting and having a substantially L shape in a side view, and a seat support portion 13 to which the seat portion 8 is attached and the backrest portion. The seat support portion 13 has a top support that is inclined downward from the front to the back, and the bottom surface is increased in the vertical width as the rear portion is directed rearward. The reinforcement in which the vertical width is increased. The lower end of the back support portion 14 is continuous with the rear end of the portion 15. Accordingly, the main frame member 4 itself has high rigidity. Further, the back support part 14 of the main frame member 4 has a shape in which the lower part 1/3 is inclined slightly forward and then the upper part is inclined rearward. And while forming the seat attachment surface 16 which fell down in the upper surface inner side part of the said seat support part 13, while forming the back attachment surface 17 which the front inner side part fell also in the said back support part 14 except the lower part. A slit groove 17A that is continuous with the back mounting surface 17 and opens inward is formed in the lower part. In the main frame member 4, the seat support portion 13, the back support portion 14 and the reinforcement portion 15 are separately manufactured, and the seat support portion 13 and the back support portion 14 are welded through the reinforcement portion 15. It may be integrated.

  The horizontal ribs 5, 6, and 7 are made of a mold material cut to a predetermined length. The horizontal bar 5 connected between the front ends of the seat support part 13 of the main frame member 4 and the horizontal bar 7 connected between the upper ends of the back support parts 14 are each provided with a connecting pin 18 projecting at the end part. The pins 18 are fitted and connected to holes 19 formed at the end portions of the corresponding main frame members 4. Further, the horizontal bar 6 connected to the corner portion of the main frame member 4 is similarly provided with a connecting bar 20 having a large diameter projecting at the end, and the connecting bar 20 is fitted to the cylindrical part 21 of the main frame member 4. Connect. In addition, since the said horizontal collar 5,6,7 connected between both the main frame members 4 and 4 was produced with the extrusion type | mold material, the horizontal width of the chair body 1 can be easily changed by cut | disconnecting to length suitably. . Further, the connecting portion between the main frame member 4 and the horizontal ribs 5, 6, and 7 is not conspicuous from the outside, so that the appearance is good.

  As described above, the seat portion 8 is detachably attached to the seat mounting surface 16 on the frame constituted by the main frame members 4 and 4 and the horizontal ribs 5, 6 and 7, and the backrest portion 9 is It attaches to the attachment surface 17 so that attachment or detachment is possible.

  As shown in FIGS. 1 to 3, the support leg 10 constituting the leg body 2 has a bifurcated structure including leg rods 22, 22 on the front and rear sides, and has a substantially U-side view opened upward at the center of the upper end. It has a character-shaped engaging portion 23. Further, an adjuster 24 is provided at the lower end of each leg rod 22 as shown in FIG. The support rod 11 is an oval pipe member whose cross-sectional shape has a long diameter in the vertical direction, and as shown in FIG. . Then, the support rod 11 is fitted into the engagement portion 23 of the support leg 10 by dropping a substantially lower half from above, and a U-shaped presser member 26 is fitted from above to hold the presser member 26. The support rod 11 is fastened to the support leg 10 with screws 27. Here, since the cross-sectional shape of the support rod 11 is oval, rotation is completely restricted in a state where the support rod 11 is supported by the support leg 10 using the presser member 26. It is strong in support and support of the armrest portion 3.

  And the said bracket 12 which attaches the said chair body 1 to the support rod 11 is a member produced from the comparatively thick steel plate, as shown in FIGS. 1-3, and FIG. 28 has an upper edge shape along the lower surface shape of the seat support portion 13 of the main frame member 4, and a band-shaped mounting plate 29 is press-formed from the upper edge to one side, and the lower portion A side-view cut U-shaped cutout 30 that matches the upper shape of the support rod 11 is formed, and a half cylinder member 31 that matches the shape of the cutout 30 is welded to the substrate 28, and the mounting plate 29 It protrudes on the opposite side. The bracket 12 is integrated with the support rod 11 by welding the cutout portion 30 and the half cylinder member 31 of the bracket 12 on the upper portion of the support rod 11. The bracket 12 can be attached to the support rod 11 in the same manner as the connection structure of the support leg 10 and the support rod 11 such that the support rod 11 is sandwiched from above and below, and if the strength allows, The half cylinder member 31 fitted to the support rod 11 may be pressed or screwed to the support rod 11 with a screw.

  The bracket 12 is attached to the support rod 11 at a predetermined interval, and a frame structure is formed on the upper surfaces of the attachment plates 29 and 29 of the pair of left and right brackets 12 and 12 attached in this manner as shown in FIG. Fixing screws inserted from below into the through-holes 33 of the mounting plate 29 into the screw holes 32 on which the lower surfaces of the seat support portions 13, 13 of the main frame members 4, 4 are placed and tapped on the lower surface of the seat support portions 13. 34 is screwed and attached. Here, in order to prevent the positioning of the main frame member 4 with respect to the bracket 12 and displacement after attachment, a screw hole 32 of the seat support portion 13 is formed in the protrusion 35, and the protrusion 35 is connected to the through hole 33. To fit. Further, since the mounting plate 29 of the bracket 12 faces outward with respect to the chair body 1, the mounting work by the fixing screw 34 is easy. Further, since the half cylinder member 31 faces the inside of the chair body 1 and is opposite to the mounting plate 29, the half cylinder member 31 is not conspicuous and the welding operation to the support rod 11 is easy. In addition, the inclination angle of the seat part 8 and the backrest part 9 can be adjusted by changing the shape of the bracket 12.

  Here, the structure of the seat portion 8 and the backrest portion 9 will be described a little, and the structure attached to the frame constituted by the main frame members 4 and 4 and the horizontal ribs 5, 6 and 7 will be briefly described. . As shown in FIG. 7, the seat portion 8 has a structure in which a cushion plate 37 covered with a cover sheet 38 is placed on a metal seat plate 36, and is detachably attached at four corners with a snap structure. As shown in FIG. 4, both side edges of the seat plate 36 are placed on the seat mounting surface 16 of the main frame members 4, 4, and the front and rear edges of the seat plate 36 are formed on the lateral ribs 5, 6. Are mounted on the receiving surfaces 39, 39, and screws 36B,... Passing through the respective members from below are screwed onto a plurality of nut portions 36A,.

  Further, as shown in FIG. 8, the backrest portion 9 is a snapping of a backrest plate 40 made of a metal punching plate and a cushion material 41 having a lower portion and an upper portion covered with a cover sheet 42. The structure is detachably attached. Here, the cushioning member 41 covered with the cover sheet 42 is attached to the backrest plate 40 after the backrest plate 40 is attached to the main frame members 4, 4 and the lateral ridges 6, 7. First, as shown in FIGS. 3 and 4, the lower side edges of the backrest plate 40 are inserted into the slit grooves 17A and 17A of the main frame members 4 and 4 from above, and the lower end edge of the back plate 6 is The back mounting surface 17 is fitted in the upper opening engaging groove 6A formed along the longitudinal direction of the main frame members 4, and the both side edges are fitted to the back mounting surfaces 17, 17 of the main frame members 4, 4. And screw 40B which penetrates the backrest board 40 from the front is attached to a plurality of screw holes 40A formed in the stepped receiving surface of the horizontal collar 7.

  In this way, after the horizontal ribs 5, 6 and 7 are fitted and connected between the main frame members 4 and 4, the seat plate 36 is attached to the seat support portions 13 and 13 and the horizontal ribs 5 and 6, The frame of the chair body 1 is firmly connected by attaching the backrest plate 40 to the back support portions 14, 14 and the horizontal supports 6, 7. Further, by using a punching plate as the backrest plate 40, and there is no lateral member that can be seen through the punching plate from the back side, the appearance from the back side is improved.

  2 and 3, the armrest portion 3 has a substantially pentagonal main body portion 43 in side view and a side-viewed U-shaped connecting portion 44 opened downward at the lower end of the main body portion 43. is doing. Then, the connecting portion 44 is fitted into the upper portion of the support rod 11, and a connecting screw 45 is screwed into the connecting portion 44 from the front and rear direction, and is fitted into the hole 46 of the support rod 11 and attached.

It is a side view of a lobby chair concerning the present invention. It is a disassembled perspective view of a chair body and a leg. It is a disassembled perspective view which shows the relationship between the frame structure of a chair body, and a leg. It is a disassembled perspective view of a chair body. The frame of a chair body is shown, (a) is a side view in an assembled state, and (b) is a front view in an exploded state. A bracket is shown, (a) is a front view, (b) is a plan view, and (c) is a right side view. It is a disassembled perspective view of a seat part. It is a disassembled perspective view of a backrest part. It is a fragmentary sectional view of the attachment state of a main frame member, a seat part, and a bracket. It is a partial exploded perspective view of a support leg. It is a partial exploded perspective view of the edge part of a support rod.

Explanation of symbols

1 chair, 2 legs,
3 armrests, 4 main frame members,
5, 6, 7 lying down, 8 seats,
9 backrest, 10 support legs,
11 support rod, 12 bracket,
13 seat support, 14 back support,
15 reinforcement part, 16 seat mounting surface,
17 Back mounting surface, 18 Connecting pin,
19 holes, 20 connecting rods,
21 cylinder part, 22 leg rod,
23 engaging portion, 24 adjuster,
25 Cap, 26 Presser member,
27 screws, 28 substrates,
29 mounting plate, 30 notch,
31 half cylinder member, 32 screw hole,
33 through holes, 34 fixing screws,
35 stand, 36 seat plate,
37 cushioning material, 38 cover sheet,
39 receiving surface, 40 backrest board,
41 cushioning material, 42 cover sheet,
43 body part, 44 connecting part,
45 connecting screws, 46 holes.

Claims (4)

  A lobby chair having a structure in which a plurality of chairs are supported by a common leg, the chair having a frame in which a seat support and a back support are integrated, and the legs are supported by a plurality of support legs. A support device for a lobby chair, which is configured to support a heel horizontally, and to place and connect the seat support portion to upper edges of a pair of left and right brackets fixed to the support heel.   The bracket is formed by fixing a U-shaped cut-out portion formed on the lower end portion in a state of being fitted to the support rod and forming a belt-like attachment plate for attaching the seat support portion to the upper edge. The apparatus for supporting a lobby chair according to claim 1.   The bracket has an upper edge shape along the lower surface shape of the seat support portion on the upper edge of the vertical substrate that is substantially triangular in a side view, and forms a belt-like mounting plate from the upper edge to one side, A lower side U-shaped cutout portion that matches the upper shape of the support rod is formed in the lower portion, and a half-cylinder member that matches the shape of the cutout portion is welded to the substrate, opposite to the mounting plate. The support device for a lobby chair according to claim 1 or 2, wherein the support device is protruded on the side. The leg body has a bifurcated structure with leg rods at the front and rear, a support leg having a substantially U-shaped engaging portion opened upward at the center of the upper end, and a cross-sectional shape having a long diameter in the vertical direction. It consists of a support rod made of a circular pipe member, and both ends of the support rod are fitted into the engagement portions of the left and right support legs by dropping substantially the lower half from above, and from above the U-shaped The support device for a lobby chair according to any one of claims 1 to 3, wherein a presser member is fitted, the presser member is fastened to a support leg with a screw, and the support rod is fixed in a holding state.

Images