CN2779980Y

CN2779980Y - Regulation device for angle of chair

Info

Publication number: CN2779980Y
Application number: CN 200520053236
Authority: CN
Inventors: 张承权
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-07
Filing date: 2005-01-07
Publication date: 2006-05-17
Anticipated expiration: 2015-01-07

Abstract

The utility model relates to a regulation device for a chair angle. A sleeve pipe (1) is sheathed in a sleeve barrel (2) in an inserted way; a group of sockets (101) are arranged on the sleeve pipe (1); holes (21) are arranged on the sleeve barrel (2); the front part (33) of an inserted pillar (3) is arranged in the hole (21) and the socket (101) in an inserted way; a chamber (4) is fixedly connected to the sleeve barrel (2); the inserted pillar (3) is sheathed in the chamber (4), and the back part (31) of the inserted pillar (3) extends out the chamber (4); one end of a spring (5) is elastically supported at the bottom part (411) of the chamber (4), and the other end of the spring (5) is elastically supported at a lug boss (32) of the front part of the inserted pillar (3); the back part (31) of the inserted pillar (3) is hinged with a lever (6). The utility model has the advantages of simple structure and low cost. The angle regulation of a backrest of a chair is realized.

Description

The chair angle adjusting device

Technical field:

The utility model relates to the seat technical field, more specifically to the backrest angle regulator.

Background technology:

At present, the backrest angle regulative mode of seat is more.Disclose a kind of backrest angle demodulator as Chinese patent 99237065.5, it comes the angle of adjustment seat chair back by gear.Its weak point is complex structure, production cost height.And for example Chinese patent 01250171.9 discloses a kind of seat angle adjustment core transmission device, in order to realize the angular adjustment of backrest, it has designed ratchet mechanism, cam mechanism, back-moving spring etc. and has regulated device, uses the angular adjustment that realizes backrest.It exists complex structure, defective that production cost is high equally.

The utility model content:

Technical problem to be solved in the utility model provides a kind of chair angle adjusting device, and it is simple in structure, production cost is low.

Technology solution of the present utility model is:

Chair angle adjusting device, sleeve pipe sleeve have one group of jack on the sleeve pipe in sleeve, have the hole on the sleeve, and the anterior sleeve of inserting column is fixedly connected with a chamber on the sleeve in hole and jack, and inserting column is enclosed within this chamber and this chamber is stretched out at the rear portion; Spring) an end resiliency supported is in the bottom of chamber, and other end resiliency supported is at the lug boss of inserting column front portion, and the rear portion 31 of inserting column is hinged with lever.

Stretch out a fulcrum on the described sleeve, lever is hinged on this fulcrum.

The cylindrical shell that described chamber is spirally connected by nut, with nut is formed, and nut welds or is screwed onto on the sleeve.

Described chamber is welded on the sleeve.

Described chamber is by cylindrical shell and double-screw bolt tube) constitute, cylindrical shell is screwed onto on the double-screw bolt tube, double-screw bolt tube one-shot forming or be welded on the sleeve.

Described connecting rod tube one end and lever are hinged, and the rear portion of the other end and inserting column is hinged.

Outstanding effect of the present utility model is: it can realize the angular adjustment of backrest, and it is simple in structure, and production cost is low.

Description of drawings

Fig. 1 be embodiment 1 the contour structures schematic diagram;

Fig. 2 is inserted in the structural representation in the jack of sleeve pipe for inserting column among the embodiment 1;

Structural representation when Fig. 3 leaves the jack of sleeve pipe for inserting column among the embodiment 1;

Fig. 4 is the utility model a kind of mounting means schematic diagram on the seat;

Fig. 5 is the utility model another kind of mounting means schematic diagram on the seat;

Fig. 6 is the utility model another mounting means schematic diagram on the seat;

Fig. 7 is the schematic appearance of embodiment 2;

The structural representation of Fig. 8 embodiment 2;

Fig. 9 is the three-dimensional exploded view of embodiment 2.

The specific embodiment

Embodiment 1, see Fig. 1～4, the chair angle adjusting device, sleeve pipe 1 sleeve is in sleeve 2, have one group of jack 101 on the sleeve pipe 1, have hole 21 on the sleeve 2, inserting column 3 sleeves are in hole 21 and jack 101, be fixedly connected with a chamber 4 on the sleeve 2, inserting column 3 is enclosed within this chamber 4 and this chamber 4 is stretched out at inserting column 3 rear portions 31; Spring 5 one end resiliency supported are in the bottom 411 of chamber 4, and other end resiliency supported is at the lug boss 32 of inserting column 3 front portions, and the rear portion 31 of inserting column 3 is hinged with lever 6.Stretch out a fulcrum 7 on the sleeve 2, lever 6 is hinged on this fulcrum 7.Chamber 4 by simplified 41 and double-screw bolt tube 42 constitute, cylindrical shell 41 is screwed onto on the double-screw bolt tube 42, double-screw bolt tube 42 one-shot formings or be welded on the sleeve 2.

First kind of installation and application and operation principle:

Show that as Fig. 4 this seat has a bottom support bracket 8, support 9, arm-rest frame 10, mounting 11, back rest 12, support 9 is hinged in the rotating shaft 81 of bottom support bracket 8, makes this support 9 to rotate around this rotating shaft 81.Arm-rest frame 10 is fixedly connected on the support 9, the integral body that mounting 11 and back rest 12 are formed in one, and mounting 11 is hinged on the support 9, makes integrated mounting 11 and back rest 12 to rotate around support 9.We are hinged on the upper end of the rotating shaft 81 of bottom support bracket 8 with sleeve 2 of the present utility model, and become certain for upper angle, and the front portion of sleeve pipe 1 is hinged on the mounting 11.When we need regulate the angle of back rest 12, presses lever 6 is deviate from the front portion of inserting column 3 from jack 101, sleeve pipe 1 just is in the released state (see figure 3) with sleeve 2 like this, upwards draws or to down pressing seat frame 11, and mounting 11 just can rotate around support 9 with back rest 12.When turning to needed angle, no longer to lever 6 reinforcings, inserting column 3 is in the hole 21 of stretching out sleeve 2 under the effect of spring 5 elastic forces and be pressed on the sleeve pipe 1, and inserting column 3 just can insert one nearest in one group of jack 101 of sleeve pipe 1, thereby realizes the angular adjustment of backrest.

Fulcrum 7 can extend out from sleeve 2, also can be that support 9 or the arm-rest frame 10 from seat extends out.Can finish the action of pull-up inserting column 3 equally, realize the angular adjustment of seat.

It is novel to handle this reality easily for the ease of the user, and we are hinged one handle 13 on arm-rest frame 10, and the bar 14 that is articulated and connected on the handle 13 is given lever 6 reinforcings by turning handle 13, thereby reaches the purpose of easy adjustment backrest angle.

Second kind of installation method and operation principle:

As shown in Figure 5, this seat has a bottom support bracket 8, support 9, arm-rest frame 10, mounting 11, back rest 12, and support 9 is hinged in the rotating shaft 81 of bottom support bracket 8, makes this support 9 to rotate around this rotating shaft 81.Arm-rest frame 10 is fixedly connected on the support 9, and mounting 11 is hinged with back rest 12, and mounting 11 fixedly is connected on the support 9.We are hinged on the upper end of the rotating shaft 81 of bottom support bracket 8 with sleeve 2 of the present utility model, and become certain for upper angle, and the front portion of sleeve pipe 1 is hinged on the back rest l1.When we need regulate the angle of back rest 12, presses lever 6 is deviate from the front portion of inserting column 3 from jack 101, sleeve pipe 1 just is in the released state (see figure 3) with sleeve 2 like this, downwards by or upwards draw back rest 12, after regulating back rest 12 angles, put down lever 6, inserting column 3 just can be inserted into one nearest in one group of jack 101, thereby the backrest angle of realizing seat is regulated.

The difference of seat is that mounting 11 is integrated with back rest 12 in first kind of installation method, that is to say it is the integral body of an interlock in first kind of installation method and the second kind of installation method.And mounting 11 is splits with back rest 12 in second kind of installation method, and back rest 12 is hinged on the support 9.So we can pass through to change the installation site of sleeve pipe 1 of the present utility model, thereby change mounting means, but the two all can reach the purpose of adjustment seat chair back angle.

The third installation method and operation principle:

As shown in Figure 6, as long as this seat has bearing 8, support 9, arm-rest frame 10, mounting 11, back rest 12, wherein mounting 11 is hinged with back rest 12, we are fixedly attached to the utility model sleeve 2 on the arm-rest frame 10, the front end of sleeve pipe 1 is hinged on the rear portion of back rest 12, we can drop on position in the hole 101 by regulating inserting column 3, realize the angular adjustment of backrest 12.

Embodiment 2, see Fig. 7,8,9, and the cylindrical shell 41 that chamber 4 is spirally connected by nut 42, with nut 42 is formed, and nut 42 is welded on the sleeve 2.Connecting rod tube 15 1 ends and lever 6 are hinged, and the rear portion 31 of the other end and inserting column 3 is hinged.All the other are with embodiment 1.

Claims

1, chair angle adjusting device, it is characterized in that: sleeve pipe (1) sleeve is in sleeve (2), have one group of jack (101) on the sleeve pipe (1), have hole (21) on the sleeve (2), front portion (33) sleeve of inserting column (3) is in hole (21) and jack (101), be fixedly connected with a chamber (4) on the sleeve (2), inserting column (3) is enclosed within this chamber (4) and rear portion (31) stretch out this chamber (4); Spring (5) one end resiliency supported are in the bottom (411) of chamber (4), and other end resiliency supported is at the anterior lug boss (32) of inserting column (3), and the rear portion (31) of inserting column (3) is hinged with lever (6).

2, chair angle adjusting device according to claim 1 is characterized in that: stretch out a fulcrum (7) on the sleeve (2), lever (6) is hinged on this fulcrum (7).

3, chair angle adjusting device according to claim 1 is characterized in that: the cylindrical shell (41) that chamber (4) is spirally connected by nut (42), with nut (42) is formed, and nut (42) welds or is screwed onto on the sleeve (2).

4, chair angle adjusting device according to claim 1 is characterized in that: chamber (4) is welded on the sleeve (2).

5, chair angle adjusting device according to claim 1 is characterized in that: chamber (4) is made of cylindrical shell (41) and double-screw bolt tube (42), and cylindrical shell (41) is screwed onto on the double-screw bolt tube (42), double-screw bolt tube (42) one-shot forming or be welded on the sleeve (2).

6, chair angle adjusting device according to claim 3 is characterized in that: connecting rod tube (15) one ends and lever (6) are hinged, and the rear portion (31) of the other end and inserting column (3) is hinged.