CN2214768Y

CN2214768Y - Improved dismountable chair leg support structure

Info

Publication number: CN2214768Y
Application number: CN 94244791
Authority: CN
Inventors: 刘琪男
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-05
Filing date: 1994-12-05
Publication date: 1995-12-13
Anticipated expiration: 2004-12-05

Abstract

The utility model relates to an improved dismountable leg support structure for a chair, composed of four supporting rods, two connecting rods, and a plurality of cross rods. Every two supporting rods are welded with one connecting rod; a plurality of cross rods are vertically arranged between the two connecting rods whose middle parts of the inner sides are vertically welded with corresponding sleeve-joint rods; in addition, both ends of each cross rod are respectively provided with an inserting end having a minor diameter; as each inserting end is provided with a through hole, the inserting ends can be inserted into the sleeve-joint rods, and then the inserting ends are connected with the nuts of a chair pad through threaded bolts.

Description

Improved dismountable chair leg support structure

The utility model relates to a kind of Seat foot frame structure of improvement, is a kind of Seat foot frame structure of storing, carry and being easy to assemble of being easy to.

Seat is through constantly improvement, and according to the difference of use occasion, the pattern of various comfortablenesses and convenience arranged.The seat more options that general individual uses are noble, the preferable pattern of comfortableness; And be used in meeting room, reception room, office ... etc. the seat of public situation, then mostly be lighter and non-damageable pattern greatly; Shown in Fig. 3,4, be common lightweight Seat foot frame structure at present.

As shown in Figure 3, this foot rest mainly comprises four parallel support bars (71), and goes up two handrails of connection at support bar (71), and top rear is provided with the chair back.In addition, the opposite side of parallel support bar (71) welds a connecting rod (72) respectively two front and back, two support bars (71) is abreast mutually fixes; Middle position at two connecting rods (71) is connected to the cross bar (73) that is slightly larger than the chair cushion width again, forms the foot rest of a solid.Chair cushion then is installed in cross bar (73) top;

A large amount of production when assembling in factory must be earlier integrally welded with support bar (71), connecting rod (72), the cross bar (73) of foot rest, and carry out surface treatment, and the chair back and chair cushion are gone up in assembling again.Therefore, the volume of aforementioned foot rest is big, stores institute and takes up space greatly, brings difficulty to assembling factory.And, when desiring to be transported to elsewhere or vanning, also, cause the increase of cost of transportation because of this foot rest can't separate.

For another shown in Figure 4, it is another kind of foot rest structure, main system is made up of the less cross bar (82) of bigger connecting rod of diameter (81) and diameter, and be provided with the conjugate foramen (811) of slightly larger in diameter in the inboard, appropriate location of connecting rod (81) in cross bar (82) diameter, the end of cross bar (82) can be inserted in the conjugate foramen (811), and the opposite side at connecting rod (81) is provided with perforation (812) again; And, being fixed with nut (821) in the end of cross bar (82), available bolt links together cross bar (82) and connecting rod (81).

But this kind mode must be greater than the diameter of cross bar (82) because of the diameter of connecting rod (81), make foot rest to be assembled by the steel pipe of two kinds of sizes, for and the lightweight seat that price is lower big, cause cost to increase for this output, and also inconvenience of the management of material.In addition, when assembling, be at the end hold-doun nut (821) of cross bar (82), and hexagonal (hexagon)nut (821) is very difficult with being connected of circular cross bar (82), make assembling bothersome, and bolt expose outside connecting rod (81) after the assembling, also influences the attractive in appearance of seat.

Therefore, the inventor is because above-mentioned shortcoming through improvement, has designed structure of the present utility model.The purpose of this utility model is to utilize separable foot rest design, can use with a kind of steel pipe section bar, material and management costs are reduced, and bolt does not expose after the combination, can make seat that better outward appearance is arranged.

Below, be described with reference to the accompanying drawings an embodiment of the present utility model:

Fig. 1 is the exploded view of an embodiment of the present utility model;

Fig. 2 is the assembling schematic diagram of an embodiment of the present utility model;

Fig. 3 is the schematic diagram of existing Seat foot frame;

Fig. 4 is the schematic diagram of existing Seat foot frame.

At first, see also Fig. 1, Seat foot frame of the present utility model is made up of (1) two connecting rod of 4 support bars (2), two cross bars (3), wherein, and can the fixedly connected handrail (4) and the chair back (5) on the support bar (1).The opposite side of two corresponding support bars (1) is fixing with a connecting rod (2) welding, makes support bar (1) parallel to each other.Again, vertically be provided with cross bar (3) between two connecting rods (2), chair cushion (6) can be positioned on the cross bar (3).The bottom plank of chair cushion (6) is fixed with the nut (62) of band card post on hole (61) on the position of (211) (32) of boring a hole corresponding to aftermentioned porose (61), nut (62) can be connected with the bolt on the cross bar (3).Design main points of the present utility model are:

The inboard central vertical of two connecting rods (2) has been welded the sleeving connecting rod (21) of two suitable lengths, perforation (211) is arranged on sleeving connecting rod (21), bolt can be passed through by perforation (211), and cross bar (3) and chair cushion (6) are fixed on the sleeving connecting rod (21).The length of cross bar (3) is suitable, two ends have the gradually little inserted terminal of diameter (31) respectively, and be provided with perforation (32) at inserted terminal (31) on corresponding to aforementioned perforation (211) position, in the time of in inserted terminal (31) inserts sleeving connecting rod (21), available bolt connection.

When the utility model is assembled, as shown in Figure 2, the inserted terminal (31) of cross bar (2) inserts in the sleeving connecting rod (21), perforation (211) (32) is aimed at the connecting hole (61) of chair cushion (6), be that available bolt is connected with nut (62), thereby sleeving connecting rod (21), cross bar (3), chair cushion (6) are connected as one.

By the above, foot rest structure of the present utility model has the following advantages:

1. foot rest of the present utility model is detachable, thus can save factory's storage space, and decomposition is carried afterwards or vanning can be saved many volumes, has increased freight volume, has saved cost of transportation.

2. foot rest of the present utility model can be made up of the steel pipe of same specification, makes cost lower, and store keeping is easy.

3. sleeving connecting rod of the present utility model (21), cross bar (3), the available bolt of chair cushion (6) once are assembled, assembling easily, and saved in the past must be in circular body the trouble of hold-doun nut.

4. after the utility model is assembled, because of bolt is positioned at than the below near chair cushion (6) middle position, and the last non-bolt of connecting rod (2), being difficult for seeing bolt in appearance, outward appearance is better.

Described before combining, foot rest structure of the present utility model has improved the shortcoming of existing like product, and this product cost is reduced, and appearance is more attractive in appearance.

Claims

1, a kind of detachable Seat foot frame structure of improvement, it is by 4 support bars, two connecting rods, some cross bars are formed, but the wherein fixed armrest and the chair back on the support bar, the opposite side of corresponding support bar welds a connecting rod respectively before and after per two, make two support bars parallel to each other, between two connecting rods, vertically be provided with some cross bars, can place chair cushion on the cross bar, the bottom plank of chair cushion is provided with perforation and nut corresponding to the cross bar position, it is characterized in that, the middle inside vertical welding of two connecting rods is connected to corresponding cross bar quantity, the sleeving connecting rod of suitable length, and be provided with perforation in the bottom of sleeving connecting rod; Cross bar has suitable length, and two ends have the gradually little inserted terminal of diameter respectively, is provided with perforation at inserted terminal on corresponding to aforementioned punch position, and inserted terminal can be inserted in the sleeving connecting rod, is connected with the chair cushion nut with bolt again; And above-mentioned various members are made by the section bar of same specification.