JP3086095U - Chair - Google Patents

Abstract

(57) [Summary] [Problem] To provide a practical chair that can be used for multiple purposes. An upper body including a backrest, a backrest support frame, and a seat is detachably provided on a lower body including a leg, a support column, and a support plate. Having a side edge frame, providing a support frame on the bottom surface,
The backrest has side edge frames on both side ends, and the lower edge of the side edge frame passes through the seat portion, reaches the bottom surface, and curves inward to form a ground contact portion. The support portion is formed in a U-shape, and comprises a horizontal portion and a support edge portion having both end edges curved vertically. The support edge portion is connected to a seat side edge frame of the seat portion, The free end of the edge is connected to the side frame of the backrest, the upper body is provided on a support plate of the lower body, the connection plate is inserted into a horizontal portion of the upper body, and the support plate and the connection plate The chair is characterized in that it can be used as a normal office chair by fixing the head with a screw.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a chair, and more particularly to a chair which can be used not only as a normal chair but also as a chair having a low seat portion, for example, a chair.

[0002]

[Prior art]

 There are various types of chairs that have different functions according to the environment or purpose of use. There are a wide variety of chairs, such as office chairs, reclining chairs, sitting chairs or masculine chairs. However, since most of these conventional chairs are often used for a single purpose, it is necessary to provide a plurality of chairs when trying to use them for different purposes. By the way, if a chair prepared for a specific purpose is used less frequently, a place to store and store the chair is required. In addition, when many types of chairs are provided, it is economically burdensome. Therefore, there is a demand in the market for a chair that can be used for different purposes by changing the mode of use by a simple operation.

[0003]

[Problems to be solved by the invention]

 Therefore, an object of the present invention is to provide a chair that can be used as a normal office chair or a chair with a low seat portion and that can be changed to a mode suitable for the purpose of use of the chair by a simple operation. Another object of the present invention is to provide a chair that does not occupy the space and is convenient for use outdoors.

[0004]

[Means for Solving the Problems]

 In view of the above-mentioned drawbacks found in conventional chairs, the present inventor has conducted intensive studies to solve the above-mentioned problems. As a result, the present inventor has an office chair in the form of a seat and a backrest. Focusing on the structure in which the main body is detachably attached to the lower body, which is the leg of the chair, based on these findings, the inventor has completed the present invention.

[0005] That is, this invention comprises a backrest, a backrest support frame, and a seat, an upper body that can be used alone as a low-seat chair, a chair leg, and a chair leg. A chair comprising: a support column provided; and a lower body having a support plate provided at an upper end of the support column, wherein the upper body is detachably provided on the lower body. The seat has a seat side edge frame on the side edge, and two U-shaped support frames are provided on the bottom surface at appropriate intervals, and the backrest constitutes a backrest on both side ends. The side edge frame has a lower end passing through the seat portion to reach the bottom surface, and is bent inward to form a ground portion, and the backrest support frame is formed in a substantially U-shape. The horizontal part and the supporting edge part whose both edges are curved vertically Connecting the supporting edge to the seat side edge frame of the both side edges of the seat, connecting the free end of the supporting edge to the side edge frame of the backrest, and connecting to the upper end of the lower body. A connection plate in which a plurality of screw holes are formed in the support plate provided, the upper body is provided on the support plate of the lower body, and screw holes corresponding to the screw holes of the support plate are separately formed. The plate is inserted into the horizontal portion of the U-shaped frame of the upper body, and the support plate and the connection plate are fixed with screws so that the plate can be used as a normal office chair. It is about chairs.

In this device, an upper body is constituted by a foldable seat and a backrest, and the lower body is provided with a chair leg at a lower end of a support column and a plurality of screw holes at an upper end. The support plate provided is provided, and the upper body is detachably provided on the support plate.

Hereinafter, this invention will be described in detail. The chair according to claim 1, comprising a backrest, a backrest support frame, and a seat, and an upper body that can be used alone as a chair with a low seat, a chair leg, and provided on the chair leg. And a lower body having a support plate provided at the upper end of the support column. The upper main body is detachably provided on the lower main body. The seat of the upper main body has a seat side edge frame on a side edge, and two U-shaped support frames are appropriately provided on a bottom surface. Provide at intervals. The backrest has side edge frames on both sides forming a backrest. The side edge frame has a lower end passing through the seat portion to reach the bottom surface, and is curved inward to form a ground contact portion. . The backrest support frame is formed in a substantially U-shape, and includes a horizontal portion and a support edge having both end edges curved vertically, and the support end edge is formed by both side edges of the seat portion. The support edge is connected to the side edge frame, and the free end of the support edge is connected to the side edge frame of the backrest. The support plate provided at the upper end of the lower main body is provided with a plurality of screw holes, and the upper main body is provided on the support plate of the lower main body, and separately corresponds to the screw holes of the support plate. A connection plate having a threaded hole is inserted into the horizontal portion of the U-shaped frame of the upper body, and the support plate and the connection plate are fixed with screws so that the connection plate can be used as a normal office chair. To

In the chair according to the second aspect, the support frame according to the first aspect is provided rotatably on the seat side edge frame, and the support edge of the support frame is turned around the side edge frame of the backrest. It is provided movably, the upper surface is open, a groove is formed, and a shaft support hole is formed in the front and rear end portions. One end of the member is rotatably provided to the seat side edge frame with a pin, and the other end is fixed to the side edge frame of the backrest with a screw, to limit the operation of falling backward of the backrest, The backrest and the seat can be folded and unfolded by allowing only the forward tilting motion.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

 In the chair according to the present invention, an upper body that can be used alone as a chair having a lower seat portion is detachably provided on a lower body serving as a leg portion of the chair. The upper body includes a backrest, a backrest support frame, and a seat, and the lower body includes a chair leg, a support column provided on the chair leg, and an upper end provided at the upper end of the support column. And a lower body provided with a supporting plate. In order to explain the structure and features of such a chair, a specific embodiment will be described below with reference to the drawings.

[0010]

【Example】

 FIG. 1 is a perspective view showing the appearance of a chair according to the present invention. FIG. 2 is an exploded view of the chair shown in FIG. FIG. 3 is a side view of the chair disclosed in FIG. 1. FIG. 4 is a side view showing a state in which the backrest is folded in the chair of FIG. FIG. 5 is a side view of the upper body of the chair of FIG. FIG. 6 is a side view of the chair disclosed in FIG. 5 in a state where the upper main body is folded. FIG. 7 is a perspective view showing a connection portion between the upper main body and the lower main body. FIG. 8 is a front view for explaining a connection portion between the upper main body and the lower main body in FIG.

According to the drawing, the chair according to the present invention comprises an upper body (10) and a lower body (20). The upper body (10) includes a seat (11), a backrest (12), a backrest support frame (13), and an operation restricting member (30). It has a side edge frame (114) and two U-shaped frames (112) are provided on the bottom surface at appropriate intervals. The U-shaped frame (112) is formed by bending both end edges of a square member vertically, a horizontal portion is provided for inserting a connection plate (40) described later, and the bent both ends are formed by the seat portion (11). To the seat side edge frame (114) to obtain a reinforcing effect. The backrest (12) has a side edge frame (123) constituting a backrest (12) on both side ends, and the lower end of the side edge frame passes through the seat (11) and reaches the bottom surface. It is bent in the direction to form a ground contact portion (125).

The backrest support frame (13) is formed in a substantially U-shape, and includes a horizontal portion (134) and a support edge portion (132) having both end edges curved vertically. The end edge portion (132) has a substantially middle position as a pivot point (136), and the pivot point (136) is provided at the rear end of the seat side edge frame (114) on both side edges of the seat (11). Connect rotatably to a close position. Also, the free end of the supporting edge (132) is rotatably connected to the side frame (123) of the backrest. In this embodiment, as shown in the drawings, a U-shaped shaft support is provided at the upper end of the support edge (132), and the side end frame (123) of the backrest (12) is formed by the free end of the shaft support. ) Is inserted so as to sandwich it, and is rotatably supported by screws or pins.

An operation restricting member (30) is provided between the side edge frame (123) of the backrest (12) and the seat side edge frame (114). The movement restricting member is formed by opening a top surface to form a groove portion (33) and drilling pivot support holes (31) and (34) at front and rear end edges. 114), and one end is rotatably provided on the seat side edge frame (114) with a pin (32), and the other end is screwed into the side edge frame (123) of the backrest (12). Fix with. Therefore, the operation of the backrest (12) to fall backward is restricted, and only the movement to fall forward is possible, and the backrest can be folded.

The lower body (20) is provided with a chair leg (22) at the lower end of the support column (21). Preferably the chair legs (22) are provided with casters as disclosed in the figures. A support plate (23) is provided at the upper end of the support column, and a plurality of screw holes (24) are formed in the support plate (23).

When connecting the upper body with the above structure to the lower body, a connection plate (40) is installed on a U-shaped frame (112) provided on the bottom surface of the seat (10), and fixing screws ( 25). That is, in the U-shaped frame (112) formed by bending both ends of the square bar vertically, the bent vertical portion is connected to the seat portion (11), and the horizontal portion is located below the seat portion (11). The U-shaped frame (112) is placed on the support plate (23) of the lower body (20), and the connecting plate (40) is placed so as to straddle the horizontal portion of the U-shaped frame (112). And fix it with the fixing screw (25). That is, the horizontal portion of the U-shaped frame (112) projecting from the bottom surface of the upper body (10) and the seat (11) placed on the support plate (23) is connected to the support plate (23) and the connection plate (40). ) And fix it with the fixing screw (25). Therefore, the upper main body (10) can be removed by a simple operation of simply removing the fixing screw (25).

As shown in FIG. 6, the removed upper body can be folded so that it does not occupy space when stored, and is convenient for transportation. FIG. 5 shows a state in which the upper body is expanded. In this embodiment, the front end of the side edge frame (114) of the seat (11) is bent downward to serve as a leg when only the upper body is used. The horizontal portions of the side frame (123) of the backrest (12) and the support frame (13) also serve as legs. Therefore, it is preferable that the front end of the side edge frame (114) of the seat (11) to be each leg, the lower end of the side edge frame (123) of the backrest (12), and the horizontal portion of the support frame (13) be used. It is preferable to insert a grounding portion made of, for example, a rubber material or a plastic material.

As described above, in the chair according to the present invention, the upper body (10) can be detachably provided on the lower body (20) by a simple operation, and can be used as a normal office chair. When necessary, the upper body (10) can be detached and used as a chair with a low seat, and the backrest (12) can be folded, which is convenient for both storage and transportation. That is, the chair according to the present invention can achieve a function that can be used for different purposes with a single chair, and is practical for the user.

The above is a preferred embodiment of the present invention, and does not limit the scope of implementation of the present invention. Therefore, any modification or change that can be made by those skilled in the art and having an equivalent effect on the present invention is included in the scope of the present invention.

[0019]

[Effect of the invention]

 The chair according to the present invention can be used as a chair with a low seat by removing the upper body by simple operation, and it can be folded even when it is removed. Not only that, but it is also convenient when carrying the upper body outdoors. In other words, since the chair can be used for multiple purposes, the economic burden on consumers can be reduced and it is practical.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a chair according to the present invention.

FIG. 2 is an exploded view of the chair disclosed in FIG.

FIG. 3 is a side view of the chair disclosed in FIG. 1;

FIG. 4 is a side view showing a state in which a backrest is folded in the chair of FIG. 1;

FIG. 5 is a side view of the upper body of the chair of FIG. 1;

FIG. 6 is a side view of the chair disclosed in FIG. 5 in a state where an upper main body is folded.

FIG. 7 is a partial perspective view showing a connection state between the U-shaped frame 112, the connection plate 40, and the support plate 23 disclosed in FIG.

FIG. 8 is a front view for explaining a connection state of the U-shaped frame 112, the connection plate 40, and the support plate 23 disclosed in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Upper main body 11 Seat part 112 U-shaped frame 114 Side edge frame 12 Backrest 123 Side edge frame 125 Grounding part 13 Support frame 132 Support edge 134 Horizontal part 136 Shaft fulcrum 182 Support edge 20 Lower body 21 Support Column 22 Chair leg 23 Support plate 24 Screw hole 25 Fixing screw 30 Operation restricting member 31 Shaft support hole 32 Pin 33 Groove 34 Shaft support hole 35 Screw 40 Connection plate

Claims (2)

[Utility model registration claims] 1. An upper main body comprising a backrest, a backrest support frame, and a seat, which can be used alone as a chair with a low seat, a chair leg, and a support pillar provided on the chair leg. And a lower body provided with a support plate provided at an upper end of the support column, wherein the upper body is detachably provided on the lower body, and a seat of the upper body has side edges. The seat back side frame is provided, and two U-shaped support frames are provided on the bottom surface at appropriate intervals, and the backrest has side edge frames constituting a backrest on both side ends. The side edge frame has a lower end passing through the seat portion to reach the bottom surface thereof, and is curved inward to form a ground contact portion. A supporting edge formed by bending both ends vertically. A plurality of screw holes are formed in a support plate provided at an upper end of the lower body, the free ends of the support edges being connected to the side frame of the seat at both side edges of the seat. The upper main body is provided on a support plate of the lower main body, and a connection plate in which a screw hole corresponding to a screw hole of the support plate is separately formed is formed in a U-shape of the upper main body. A chair which is inserted into a horizontal portion of a frame, and which can be used as a normal office chair by fixing the support plate and the connection plate with screws. 2. The support frame is rotatably provided on a seat side edge frame, and a support edge of the support frame is rotatably provided on a side edge frame of the backrest, and an upper surface is opened. A groove is formed, and a shaft support hole is drilled at the front and rear end edges. The groove is fitted into the seat side edge frame, and one end of the motion limiting member is pinned to the seat side edge frame. And the other end is fixed to the side edge frame of the backrest with a screw to restrict the backward movement of the backrest and enable only the forward leaning operation. The chair according to claim 1, wherein the backrest and the seat portion are folded and configured to be freely deployable.