CN201403856Y

CN201403856Y - Seat base

Info

Publication number: CN201403856Y
Application number: CN200920057184XU
Authority: CN
Inventors: 谭兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-02-17
Anticipated expiration: 2019-05-22

Abstract

The utility model relates to a seat base, which comprises a connecting base and a base plate support, wherein the connecting base is connected with seat legs, and the base plate support is connected with a seat cushion. The base plate support can be movably arranged on the connecting base back and forth, a rack is arranged in a back-and-forth direction on one side of the base plate support, and the connecting base is equipped with a locking tooth mechanism which can be fastened with or separated from the rack. The seat base is characterized in that two sides of the connecting base are respectively equipped with guiding clamp grooves, the bottom of the base plate support is provided with clamp groove components which are in clamping connection into the guiding clamp grooves and can move back and forth inside the guiding clamp grooves, the front end, the middle portion and the rear end of each guiding clamp groove are respectively equipped with lower limiting projections projected upwardly, rolling parts generating rolling friction are arranged among the lower limiting projections, the clamp groove components are supported on the rolling part, paired upper limiting projections projected downwardly are arranged on positions of the bottoms of the clamp groove component corresponding to the lower limiting projections, and front and rear rolling displacement distances of the rollingparts are limited through the upper limiting projections and the lower limiting projections. The seat base utilizing the structure is low in production cost and long in service life.

Description

A kind of seat base

Technical field

The utility model belongs to furniture and makes the field, relates to a kind of seat-assembly, is specifically related to a kind of seat base.

Background technology

Present seat base, mainly form by the Connection Block that is connected with the chair pin, the chassis overhang that is connected with cushion, chassis overhang generally adopts guide rail to be connected with Connection Block, chassis overhang can move front and back on Connection Block, on the fore-and-aft direction of chassis overhang one side, be provided with tooth bar, Connection Block is provided with the lock gear mechanism that can fasten or separate with tooth bar, the seat that adopts this seat base to make, seat support can move forward and backward, improve comfortableness, but adopt guide rail structure, production cost height, and stressed generally less, damage easily.

Summary of the invention

The purpose of this utility model is to provide that a kind of production cost is low, the seat base of long service life.

The purpose of this utility model is achieved in that a kind of seat base, comprise the Connection Block that is connected with the chair pin, the chassis overhang that is connected with cushion, what chassis overhang can move forward and backward is installed on the Connection Block, on the fore-and-aft direction of chassis overhang one side, be provided with tooth bar, Connection Block is provided with the lock gear mechanism that can fasten or separate with tooth bar, it is characterized in that: the both sides of described Connection Block are respectively equipped with the guiding draw-in groove, the bottom of chassis overhang has the draw-in groove member that is connected in the guiding draw-in groove and can moves forward and backward in the draw-in groove in guiding, front end at the guiding draw-in groove, the middle part, the rear end is respectively equipped with lower limit projection protruding upward, the rolling member that produces rolling friction all is installed between the lower limit projection, described draw-in groove member supporting is on rolling member, the corresponding lower limit raised position in the bottom of draw-in groove member is provided with the upper limit projection of the downward protrusion of pairing, and rolling member is by last, the lower limit projection limits its scroll forward and backward shift length.

Described rolling member is cylinder or torus or helical spring or steel ball.

Be provided with the positioning seat that can move forward and backward in the guiding draw-in groove in the described guiding draw-in groove, rolling member is installed in the positioning seat.

Good effect of the present utility model: substitute guide-rail coupling member by guiding draw-in groove, draw-in groove member, rolling member, can effectively reduce production costs, and not fragile, long service life.

As further improvement of the utility model, in the guiding draw-in groove, be provided with positioning seat, rolling member is installed in the positioning seat, and rolling member is difficult for stuck in rolling process, and chassis overhang moves forward and backward flexibly.

Description of drawings

Fig. 1 is the seat base stereogram;

Fig. 2 is the Connection Block stereogram;

Fig. 3 is guiding draw-in groove, draw-in groove member syndeton schematic diagram;

Fig. 4 is positioning seat and rolling member mounting structure stereogram.

The specific embodiment

Be described in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model seat base.

Embodiment: as Fig. 1-shown in Figure 4, seat base described in the utility model, main by the Connection Block 1 that is connected with the chair pin, the chassis overhang 2 that is connected with cushion is formed, the both sides of Connection Block 1 are respectively equipped with guiding draw-in groove 10, the bottom of chassis overhang 2 has and is connected in the guiding draw-in groove 1 and the draw-in groove member 20 that can move forward and backward in guiding draw-in groove 1, front end at guiding draw-in groove 10, the middle part, the rear end is respectively equipped with lower limit projection 100 protruding upward, the rolling member 4 that produces rolling friction all is installed between the lower limit projection 100, can be cylinder or torus or helical spring or steel ball.Draw-in groove member 20 is bearing on the rolling member 4, corresponding lower limit projection 100 positions, the bottom of draw-in groove member 20 are provided with the upper limit projection 200 of the downward protrusion of pairing, and rolling member 4 limits its scroll forward and backward shift length by upper limit projection 100, lower limit projection 200.In order to regulate the front and back position of chassis overhang 2, on the fore-and-aft direction of chassis overhang 2 one sides, be provided with tooth bar 21, Connection Block 1 is provided with the lock gear mechanism 11 that can fasten or separate with tooth bar 21.In addition, in order to improve the mobile flexibility of chassis overhang 2, prevent that rolling member 4 is stuck in moving process, be preferably in the positioning seat 5 that setting can move forward and backward in the guiding draw-in groove 10 in guiding draw-in groove 10, rolling member 4 is installed in the positioning seat 5.

Claims

1, a kind of seat base, comprise the Connection Block that is connected with the chair pin, the chassis overhang that is connected with cushion, what chassis overhang can move forward and backward is installed on the Connection Block, on the fore-and-aft direction of chassis overhang one side, be provided with tooth bar, Connection Block is provided with the lock gear mechanism that can fasten or separate with tooth bar, it is characterized in that: the both sides of described Connection Block are respectively equipped with the guiding draw-in groove, the bottom of chassis overhang has the draw-in groove member that is connected in the guiding draw-in groove and can moves forward and backward in the draw-in groove in guiding, front end at the guiding draw-in groove, the middle part, the rear end is respectively equipped with lower limit projection protruding upward, the rolling member that produces rolling friction all is installed between the lower limit projection, described draw-in groove member supporting is on rolling member, the corresponding lower limit raised position in the bottom of draw-in groove member is provided with the upper limit projection of the downward protrusion of pairing, and rolling member is by last, the lower limit projection limits its scroll forward and backward shift length.

2, seat base according to claim 1 is characterized in that: described rolling member is cylinder or torus or helical spring or steel ball.

3, seat base according to claim 1 and 2 is characterized in that: be provided with the positioning seat that can move forward and backward in the guiding draw-in groove in the described guiding draw-in groove, rolling member is installed in the positioning seat.