TWI744789B - Reinforced combination chair - Google Patents

Abstract

A reinforced composite chair includes a cushion unit and at least a tripod unit. The chair cushion unit has a lower surface facing a supporting surface and an upper surface opposite to the lower surface. Each tripod unit is detachably connected to the lower surface of the seat cushion unit, and includes an outer tube, and an inner shaft passing through the outer tube. The inner shaft has a greater bending strength than the outer tube. The bending strength of the pipe fittings and the lower end surface that bears the force on the supporting surface. Thereby, the present invention uses the detachable chair cushion unit and the tripod unit to reduce the volume during transportation or storage, and through the inner shaft that penetrates the outer tube and has a greater bending strength, it also has an aesthetic appearance. Next, further enhance the overall structural strength.

Description

Reinforced combination chair

The present invention relates to a combination chair, in particular to a reinforced combination chair.

Referring to FIG. 1, a combination chair 1 includes a main body 11 and a quadripod unit 12. Each stand unit 12 has a support section 121 and an extension section 122 integrally formed. The supporting section 121 is connected to the body 11. The extension 122 stands on the ground.

In order not to affect the structural strength of the combined chair 1, the body 11 and the tripod units 12 will be locked into one body after leaving the factory and cannot be disassembled. In particular, the integrated support section 121 and the extension section 122, although It can further increase the load, but because it cannot be disassembled or disassembled, it has the disadvantages of too large volume, which is not conducive to transportation or storage.

In order to improve the aforementioned shortcomings, there is another combination chair that can remove the tripod unit on the market. However, for this type of combination chair that can remove the tripod unit, in order to improve the overall structural strength, most of the The aesthetic design is limited.

Therefore, the purpose of the present invention is to provide a reinforced composite chair that has both aesthetic appearance and can improve the overall structural strength.

Therefore, the reinforced composite chair of the present invention is suitable for standing on a supporting surface and includes: a chair cushion unit and at least a tripod unit.

The chair cushion unit has a lower surface facing the supporting surface and an upper surface opposite to the lower surface.

The tripod units are detachably connected to the lower surface of the chair cushion unit. Each tripod unit includes an outer tube and an inner shaft passing through the outer tube. The inner shaft is resistant to bending The strength is greater than the bending strength of the outer pipe, and it has a lower end surface that is stressed on the supporting surface.

The effect of the present invention is that the detachable chair cushion unit and the tripod unit are used to reduce the volume during transportation or storage, and the inner shaft that penetrates through the outer tube and has greater bending strength is used in the aesthetic appearance. Under the circumstances, the overall structural strength is further improved.

Referring to Figures 2 and 3, a first embodiment of the reinforced composite chair of the present invention is suitable for being placed on a supporting surface 2 (Figure 8), and includes a chair cushion unit 3, a four-legged frame unit 4, and four supporting units 5 and a seat back unit 6.

The seat cushion unit 3 includes a body portion 31 and four bolt seats 33.

The body portion 31 has a lower surface 311 facing the supporting surface 2 (as shown in FIG. 8 ), and an upper surface 312 opposite to the lower surface 311.

The bolt seats 33 are fixed on the lower surface 311 of the main body portion 31. Each bolt 33 defines an upper screw hole 331 around and has an engaging portion 332 formed on an outer peripheral surface.

The tripod units 4 are detachably connected to the lower surface 311 of the body portion 31 of the chair cushion unit 3. Each tripod unit 4 includes an outer tube 41, an inner shaft 42, a foot pad 43, and a The first bolt 44, a connecting piece 45, a second bolt 46, and a bolt 47.

In this embodiment, the outer tube 41 can be made of plastic, wood, etc., and has a graphic 411 formed on an outer surface. The aforementioned graphic text 411 can be one of text (such as congratulatory words), graphics, textures, and portraits, and the processing method can be one of laser engraving, spraying, and pasting.

Referring to Figures 3, 4 and 8, in this embodiment, the inner shaft member 42 is made of a metal material, penetrates the outer tube member 41, and has a bending strength greater than that of the outer tube member 41, and has The lower end surface 421 of the support surface 2 is stressed, an upper end surface 422 opposite to the lower end surface 421, a lower end screw hole 423 extending from the lower end surface 421 toward the upper end surface 422, and the upper end surface 422 A socket 424 extending in the direction of the lower end surface 421.

The foot pad 43 has a pad body 431 and a pad cover 432. The cushion body 431 has a first groove 433 formed on one end surface facing the inner shaft member 42 and aligned with the lower end surface 421, and a second groove 433 formed on the other end surface opposite to the first groove 433. Groove 434. The pad cover 432 is aligned with the second groove 434.

The first bolt 44 passes through the foot pad 43 from bottom to top and is screwed into the lower end screw hole 423 of the inner shaft member 42 so that the foot pad 43 is detachably connected to the lower end surface 421 of the inner shaft member 42. When installing, only need to align the first groove 433 of the cushion body 431 with the lower end surface 421 of the inner shaft member 42, and the inner shaft member 42 and the cushion body 431 can be connected as a whole through the first bolt 44 Finally, aligning the cushion cover 432 with the second groove 434 of the cushion body 431 can cover the first bolt 44 to improve the aesthetics, and isolate the first bolt 44 from contacting the supporting surface 2.

The connecting member 45 has a first connecting portion 451 passing through the socket 424 and a second connecting portion 452 forming an angle with the first connecting portion 451. The second connecting portion 452 has an inner ring surface 454 surrounding and defining a concave hole 453. The concave hole 453 is sleeved on the bolt seat 33. The inner ring surface 454 has a limiting portion 455 that is aligned with the engaging portion 332.

The engaging portion 332 may be one of a concave portion and a convex portion, and the limiting portion 455 may be the other of a concave portion and a convex portion. In this way, with the aforementioned concave and convex fool-proof design, the installation angle of each stand unit 4 is restricted.

The second bolt 46 passes through the second connecting portion 452 from bottom to top and is screwed into the upper screw hole 331 of the respective bolt seat 33 so that the connecting member 45 is fixed to the body portion 31 of the seat cushion unit 3.

The plug 47 passes through the first connecting portion 451 of the inner shaft 42 and the connecting member 45, so that the connecting member 45 is connected to the inner shaft 42.

It should be noted that the length of the outer tube 41 and the inner shaft 42, or the foot pad 43, or the connecting member 45 along a vertical direction is not limited to that shown in FIG. In the example, it can also be extended or shortened to meet the needs of consumers, but it is not limited to this.

Referring to Figures 3, 5, 6 and 8, each support unit 5 is detachably connected between three adjacent tripod units 4, and includes a V-shaped support rod 51 and a first fixed Bolt 52, a second fixing bolt 53, and first and third fixing bolts 54. The support rod 51 has two rods 510 that form an angle and are generally V-shaped, a first nut portion 511 welded between the rods 510 and connected to the rods 510 as a whole, and welded to one of the rods 510. One end of the rod 510 is integrally connected with one of the rods 510 to form a second nut portion 512, and an overlap portion 513 formed at one end of the other rod 510. The overlap portion 513 overlaps with the second nut portion 512 of the adjacent support rod 51. The first fixing bolt 52 passes through the outer tube 41 and the inner shaft 42 of one of the three adjacent tripod units 4, and is screwed to the first nut portion 511. The second fixing bolt 53 passes through the outer tube 41, the socket 424 of the inner shaft member 42 and the first connecting portion 451 of the connecting member 45 of the other of the three adjacent tripod units 4 and is connected to the overlap. The portion 513 is screwed to the second nut portion 512 of the adjacent support rod 51. The third fixing bolt 54 passes through the outer tube 41 of the remaining one of the three adjacent tripod units 4, the socket 424 of the inner shaft member 42, the first connecting portion 451 of the connector 45 and the adjacent support The overlapping portion 513 of the rod 51 is screwed to the second nut portion 512.

The seat back unit 6 includes a seat back 61. In this embodiment, the seat back 61 and the body portion 31 of the seat cushion unit 3 are integrally formed.

When leaving the factory, the tripod units 4 and the supporting unit 5 are modular components that can be disassembled and assembled, so that the components can be reduced in volume and are convenient for transportation or storage.

Referring to Figure 5, Figure 6, Figure 7 and Figure 8, when installing, it is only necessary to align the limiting portion 455 of the connecting piece 45 of each leg unit 4 with the clip of the respective bolt seat 33 of the cushion unit 3. With the joint 332, each tripod unit 4 can be fitted to the respective bolt seat 33 with the recessed hole 453, and limited at a predetermined position, and then pass through each second bolt 46 from bottom to top. The second connecting portion 452 of each connecting piece 45 is screwed to the upper screw hole 331 of the respective bolt seat 33, and the foot frame unit 4 is locked to the seat cushion unit 3 to complete the assembly.

Referring to Figures 9, 10 and 11, a second embodiment of the reinforced composite chair of the present invention also includes the chair cushion unit 3, the foot frame units 4, the support units 5 and the chair back unit 6, which The difference from the first embodiment is that a plate unit 7 is further included, and the difference is as follows:

The seat cushion unit 3 further includes two armrest portions 32. The armrest portions 32 are formed on opposite sides of the main body portion 31, and each armrest portion 32 has an extension section 321 connected to the main body portion 31 and extending upward, and a bearing section forming an angle with the extension section 321 322. The supporting section 322 has an upper connecting surface 323 facing upward and a lower connecting surface 324 opposite to the upper connecting surface 323.

The seat back unit 6 further includes a third bolt 62. In addition, the seat back 61 has two connecting portions 610 formed on two sides. The connecting portions 610 are detachably connected to the upper connecting surface 323 of the supporting section 322 of the armrest portion 32, and each has a number of screw holes 611 extending upward from a side facing the upper connecting surface 323. The third bolts 62 pass through the load-bearing sections 322 of the armrest portions 32 from bottom to top and are screwed into the screw holes 611 so that the seat back 61 is fixed to the load-bearing sections 322 of the armrest portions 32.

The dinner plate unit 7 is connected to the bearing sections 322 of the armrest portions 32 and includes two fixed seats 71, a first telescopic group 72, a second telescopic group 73, and a dinner plate 74. Each fixing seat 71 has a locking piece 710 fixed to the lower connecting surface 324 of the respective bearing section 322 and a sleeve 712 surrounding a perforation 711. The first telescopic group 72 has a sliding rod 721 movably passing through the through hole 711 of one of the fixing bases 71, and a limiting bolt 722. The sliding rod 721 has a hole 723 extending along a length direction. The limiting bolt 722 passes through one of the fixing seats 71 and partially penetrates the hole 723 to limit the sliding rod 721. The second telescopic group 73 has a first rod 731 that is displaceably passing through the through hole 711 of the other fixing base 71, and a first rod 731 that is nested with the first rod 731 and can be telescopic relative to the first rod 731 Two rods 732. The dinner plate 74 is separated from the body portion 31 of the chair cushion unit 3 by a distance, and is connected to the second rod 732 and detachably overlaps the sliding rod 721. Thereby, when the dinner plate 74 is separated from the sliding rod 721, it can be rotated to one side of the seat cushion unit 3 with the second rod 732 as the center.

10, when leaving the factory, the chair cushion unit 3, the tripod units 4, the support unit 5, the chair back unit 6 and the dinner plate unit 7 are detachable and modular components, thereby , These components can reduce the volume, and facilitate transportation or storage.

It is worth noting that the installation method of each stand unit 4 is the same as that of the first embodiment, and will not be repeated here. Referring to Figures 11, 12, 13 and 14, then, the connecting portions 610 of the seat back 61 are mounted on the bearing sections 322 of the armrest portions 32 of the seat cushion unit 3, and pass the The third bolt 62 passes through the load-bearing section 322 of the armrest portions 32 from bottom to bottom, and is screwed into the screw hole 611 of the connecting portion 610 of the seat back 61, so that the seat back 61 can be locked to the chair.垫unit 3.

Finally, users with young children can choose whether to install the dinner plate unit 7. When installing the dinner plate unit 7, just lock the fixing seats 71 on the armrests 32 of the chair cushion unit 3. The load-bearing section 322 can be assembled. When in use, the distance between the dinner plate 74 and the seat back 61 can be adjusted by the sliding rod 721 or the first rod 731 that slides in the perforation 711 of the fixing seats 71, and the telescopic second rod 732.

It should be noted that the dinner plate unit 7 is not limited to as shown in FIG. 9 and is assembled in the chair cushion unit 3. In other variations of this embodiment, it can also be shown in FIG. 15 when the child grows up. When the plate unit 7 is not needed, the plate unit 7 is removed from the cushion unit 3, thereby, it can also become a fashionable combination chair.

Based on the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. The present invention can use the detachable chair cushion unit 3 and the tripod unit 4 to reduce the overall volume, and is convenient for transportation or storage. What is important is that, taking the first embodiment as an example, only the accessories to be combined are The quadruped unit 4 and the four support unit 5, in the case that each support rod 51 is integrally formed by two rods 510, the first nut portion 511 and the second nut portion 512, only one Hexagonal wrench (not shown) can complete the assembly of 12 bolts (including four first fixing bolts 52, four second fixing bolts 53, and four third fixing bolts 54) within 3-5 minutes. Fast, simple, convenient and safe.

2. Furthermore, the present invention can improve the overall structural strength through the inner shaft 42 which penetrates the outer tube 41 and has greater bending strength, whereby the outer tube 41 can be made of other materials with aesthetic feeling, or further The material that improves the structural strength makes the present invention have both aesthetics and required load strength. Taking the wooden outer pipe 41 as an example, it can be formed on the outer surface of the outer pipe 41 through processing methods such as laser engraving, spraying, or pasting. There are customized pictures and text 41, so that the product integrates industrial structure design, exquisite processing technology and carpenter carving art, etc., and adds an overall artistic flavor.

3. In the present invention, when installing the tripod unit 4, the concave and convex design of the limiting portion 455 and the engaging portion 332 can limit the installation angle of each tripod unit 4 and avoid the trouble of alignment. , And improve the convenience and simplicity of installation.

4. The present invention can also choose whether to install the dinner plate unit 7 according to the needs of use, and after the dinner plate unit 7 is disassembled, the combination chair of the present invention can also present a fashionable and concise visual experience in appearance, and improve The overall beauty.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

2: Support surface 3: Chair cushion unit 31: Main body 311: Lower surface 312: Upper surface 32: Armrest 321: Extension 322: Carrying section 323: Top Joint 324: Bottom Connection 33: Bolt seat 331: Upper screw hole 332: Engagement part 4: Tripod unit 41: Outer pipe fittings 411: Graphic 42: inner shaft 421: Lower end face 422: Upper end face 423: Lower end screw hole 424: Socket 43: Foot pad 431: Cushion 432: Pad cover 433: First Groove 434: The first groove 44: The first bolt 45: Adapter 451: First connection part 452: second connection part 455: Limiting part 46: second bolt 5: Support unit 51: Support rod 510: Rod 511: second nut part 512: second nut part 513: Overlap 453: recessed hole 454: inner ring surface 46: second bolt 47: Bolt 52: The first fixing bolt 53: Second fixing bolt 54: Third fixing bolt 6: Chair back unit 61: Chair back 610: Connection part 611: Screw hole 62: third bolt 7: Dinner plate unit 71: fixed seat 710: Locking piece 711: Piercing 712: Casing 72: The first telescopic group 721: Sliding rod 722: Limit Bolt 723: Hole 73: The second telescopic group 731: first member 732: second member 74: Dinner Plate

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view illustrating a conventional combination chair; Figure 2 is a perspective view illustrating a first embodiment of the reinforced modular chair of the present invention; Figure 3 is a perspective exploded view of the first embodiment; Figure 4 is a combined perspective view of a tripod unit in the first embodiment; Figure 5 is a perspective view of the four supporting units in the first embodiment; Figure 6 is a combined perspective view of the quadruped unit and the supporting units in the first embodiment; Figure 7 is a bottom view of the first embodiment; Figure 8 is a cross-sectional view taken along the line Ⅷ-Ⅷ in Figure 7; Figure 9 is a perspective view illustrating a second embodiment of the reinforced modular chair of the present invention; Figure 10 is a perspective exploded view of the second embodiment; Figure 11 is a perspective exploded view of a plate unit in the second embodiment; Figure 12 is a bottom view of the second embodiment; Figure 13 is a cross-sectional view taken along the line ⅩⅢ-ⅩⅢ in Figure 12; Figure 14 is a cross-sectional view taken along the line ⅩⅣ-ⅩⅣ in Figure 12; and Fig. 15 is a perspective view illustrating a modification of the second embodiment.

2: Support surface 3: Chair cushion unit 31: Main body 311: Lower surface 312: Upper surface 33: Bolt seat 332: Snap part 4: Tripod unit 41: Outer pipe fittings 42: inner shaft 421: Lower end face 422: Upper end face 423: Lower end screw hole 424: Socket 43: Foot pad 431: Cushion body 432: Pad cover 433: First Groove 434: The first groove 44: The first bolt 45: Adapter 46: second bolt 5: Support unit 51: Support rod 510: Rod 511: second nut part 512: second nut part 513: Overlap 53: Second fixing bolt 54: Third fixing bolt

Claims (10)

A reinforced composite chair, suitable for standing on a supporting surface, and comprising: a chair cushion unit having a lower surface facing the supporting surface and an upper surface opposite to the lower surface; and at least a tripod unit, which is detachable Ground connection to the lower surface of the chair cushion unit, each tripod unit includes an outer tube, an inner shaft that penetrates the outer tube, an adapter, and a pin. The inner shaft is resistant to bending The strength is greater than the bending strength of the outer tube, and it has a lower end surface of the supporting surface, an upper end surface opposite to the lower end surface, and a socket extending from the upper end surface toward the lower end surface. The member has a first connecting portion penetrating through the socket, and a second connecting portion forming an included angle with the first connecting portion and connected to the lower surface of the cushion unit, and the pin passes through the inner shaft member and The first connecting part of the connecting piece connects the connecting piece with the inner shaft piece. The reinforced combination chair according to claim 1, wherein each foot frame unit further includes a foot pad detachably connected to the lower end surface of the inner shaft member. The reinforced composite chair according to claim 2, wherein each leg unit further includes a first bolt, and the inner shaft member further has a lower end screw hole extending from the lower end surface toward the seat cushion unit, The first bolt passes through the foot pad and is screwed into the lower end screw hole. The reinforced composite chair according to claim 1, wherein the cushion unit includes a plurality of bolt seats formed on the lower surface and corresponding to the number of the tripod units, and each bolt seat surrounds and defines an upper screw hole and has An engaging portion formed on an outer peripheral surface, each tripod unit further includes a second bolt, and the engagement The second connecting portion of the connector has an inner ring surface surrounding and defining a recessed hole, the recessed hole is sleeved on the bolt seat, the inner ring surface has a limiting portion opposite to the engaging portion, the card The joint portion may be one of a concave portion and a convex portion, and the limiting portion may be the other of a concave portion and a convex portion. The second bolt passes through the second connecting portion and is screwed to a respective bolt seat The upper screw hole. The reinforced combination chair according to claim 4, further comprising several supporting units, each supporting unit is detachably connected between three adjacent leg units, and includes a supporting rod and a first fixing bolt, And a second fixing bolt. The support rod has a first rod and a second rod that are integrally formed and form an included angle, and are welded between the first rod and the second rod and connected to the first rod. A first nut portion connected to the second rod as a whole, and a second nut part welded to an end of the first rod far away from the first nut and connected to the first rod as a whole , And an overlap portion formed at an end of the second rod away from the first nut portion, the overlap portion of each support rod overlaps the second nut portion of the adjacent support rod, and each support The first fixing bolt of the unit passes through the corresponding tripod unit of the three adjacent tripod units and is screwed to the first nut part, and the second fixing bolt passes through the three adjacent tripod units which are different from The other tripod unit of the corresponding tripod unit and the overlapping portion are screwed to the second nut portion of the support rod of the adjacent support unit. The reinforced combination chair according to claim 4 includes a four-legged frame unit, and the cushion unit includes four bolt seats. The reinforced combination chair according to claim 1, further comprising a seat back unit, and the seat cushion unit includes a body part and two armrest parts, the body part has the upper surface and the lower surface, the armrest parts Formed in the body part Each armrest portion has an extension section connected to the body portion and extending upward, and a bearing section that forms an angle with the extension section. The seat back unit includes a seat back, and the seat back has a The two sides are detachably connected to the two connecting parts of the load-bearing sections of the armrest parts. The reinforced combination chair according to claim 7, further comprising a plate unit, wherein the load-bearing section of each armrest portion has an upper surface facing upwards and connected to the respective connecting portions of the back of the chair, and reverse To the lower connecting surface of the upper connecting surface, the dinner plate unit is connected to the lower connecting surface of the carrying section of the armrest parts. The reinforced combination chair according to claim 8, wherein the dinner plate unit includes two fixed seats, a first telescopic group, a second telescopic group, and a dinner plate, and each fixed seat has a fixed seat A locking piece on the lower joint surface of the load-bearing section, and a sleeve tube defining a perforation around it, the first telescopic group has a sliding rod that can displaceably pass through the perforation of one of the fixing bases, and a limit bolt, The sliding rod has a hole extending along a length direction, and the limiting bolt passes through one of the fixing seats and partially penetrates in the hole to limit the sliding rod. The second telescopic group has a displaceable A first rod that penetrates through the perforation of another fixing seat, and a second rod that is nested with the first rod and can extend and contract with respect to the first rod, the dinner plate and the chair cushion unit The body part is separated by a distance, and is connected to the second rod and can be detachably overlapped with the sliding rod. The reinforced modular chair according to claim 1, wherein the outer tube of each leg unit has graphics and text formed on an outer surface, and the aforementioned graphics and text can be one of text, graphics, textures, and portraits, and processed The method can be laser engraving, spraying, or pasting.

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