CN103876508A

CN103876508A - Device with tilt mount for chair

Info

Publication number: CN103876508A
Application number: CN201310698228.8A
Authority: CN
Inventors: 雷夫·瓦特堡; 哈尔斯坦·科范格拉文
Original assignee: Scandinavian Business Seating AS
Current assignee: Scandinavian Business Seating Co ltd
Priority date: 2012-12-19
Filing date: 2013-12-18
Publication date: 2014-06-25
Anticipated expiration: 2033-12-18
Also published as: EP2745741A1; CN103876508B; KR20140079742A; NO335007B1; EP2745741B1; NO20121535A1

Abstract

A device at tilt mount (1) for chair, wherein the seat (2) of the chair is tiltable forwards and backwards against spring force from tilt resistance springs (3), where the tilt mount (1) has an upper part (4) which is attachable to the seat (2) of the chair and a lower part (5) which is attachable to the undercarriage (6) of the chair and tiltably connected to the upper part (4), and where tilt resistance is adjustable by adjustment of the pre-tensioning of the springs (3), wherein the distance between an upper spring seat (7) allocated the upper part (4) and a lower spring seat (8) allocated the lower part (5) is altered, wherein two lower flap-like spring seats (8) are mutually opposite tiltably arranged relative to each other for altering said distance, wherein each lower spring seat (8) is provided with a respective arm or portion (9); projecting up in operative thread connection with the thread portion (10) of a common rotatable adjusting lever (11), wherein the distance between the connection points of the arms (9) along the thread portion (10), and thus the mutually opposite tilt positions of the lower spring seat (8), is altered by rotating the adjustment lever (11).

Description

There is the device for the tilt stand of chair

Technical field

The present invention relates to a kind of device having for the tilt stand of chair, wherein the seat of chair can overcome from the elastic force of grade resistance spring forward and recede, wherein tilt stand has and can be connected to the top of seats and can be connected to the underframe of chair and tiltably be connected to the bottom on top, and wherein grade resistance is conditioned by the prestretched of regulating spring.More specifically, the present invention relates to a kind of device described in the preamble of independent claims 1.

Background technology

Have several current known tilt stands for chair (especially for office chair), and it emphasizes different characteristics and function control.As an example of previous tilt stand, with reference to shown in No. 327014th, applicant's Norw P and the support of describing.

Summary of the invention

According to prior art, the object of this invention is to provide one compactness and simple structure especially, and object of the present invention realizes by the device described in the characteristic of independent claims 1.

The preferred embodiments of the present invention are open by dependent claims.

Accompanying drawing explanation

Carry out a step referring to accompanying drawing and describe preferred unrestricted embodiment of the present invention, wherein:

Fig. 1 is the front perspective view according to device of the present invention, and wherein tilt stand is connected to seats and is connected to the top of the underframe of chair;

Fig. 2 is the side view corresponding to Fig. 1;

Fig. 3 is the rearview corresponding to Fig. 1;

Fig. 4 is the cutaway view intercepting along the line A-A in Fig. 2, and wherein the grade resistance spring of tilt stand is in minimum prestressed position;

Fig. 4 is the cutaway view intercepting along the line B-B in Fig. 2, and wherein the grade resistance spring of tilt stand is in minimum prestressed position;

Fig. 6 is the cutaway view corresponding to Fig. 4, but the grade resistance spring of tilt stand is in maximum prestressed position;

Fig. 7 is the cutaway view corresponding to Fig. 5, but the grade resistance spring of tilt stand is in maximum prestressed position;

Fig. 8 is the perspective view of multiple parts of the tilt stand shown in Fig. 1-7; And

Fig. 9 is another perspective view of multiple parts of the tilt stand shown in Fig. 1-7.

The specific embodiment

In the following description, such as 'fornt', 'back', " on ", the direction such as D score, " upwards ", " downwards " shows that to chair upright operation position is relevant.

Even if it is also noted that in the drawings and do not illustrate, and in diagram is considered, support will consider with visual and function and security consideration together with must be merged in, what make to see from the outside is the upper and lower that is formed and be provided with the support of the necessary operation rod member outstanding from support by mutual clamping movement setting.In the accompanying drawings, only be illustrated for the action bars of the prestretched that changes grade resistance spring, but for other function of tilt stand, conventionally other operation rod member is set up, and applicant's application number be described in P61202507NO00 the Norwegian patent applications submitted on the same day from the application and shown in latch bar can especially preferably be provided to for by bracket locked in different expectation obliquities and can discharge described support by described different expectation obliquity.

With reference to accompanying drawing, and in particular with reference to Fig. 1-7, show the device having for the tilt stand 1 of chair according to of the present invention, wherein the seat 2 of chair can overcome from the elastic force of grade resistance spring 3 forward and recede, wherein tilt stand 1 has the underframe 6 that can be connected to the top 4 of seats 2 and can be connected to chair and is tiltably connected to the bottom 5 on top 4, and wherein when distributing to the upper spring seat 7 on top 4 and distribute to distance between the lower spring cup 8 of bottom 5 while changing, by the prestretched adjustable tilt resistance of regulating spring 3.Two turnover panel shape lower spring cups 8 relative to each other mutually relative tilt arrange to change described distance, each lower spring cup 8 is provided with the corresponding arm or the part 9 that in being operatively threaded with the threaded portion 10 that shares rotatable adjusting rod 11, project upwards, and change arm 9 along the distance between the tie point of threaded portion 10 by rotary regulating lever 11, and therefore change the mutual relative obliquity of lower spring cup 8.

Spring 8 is preferably coil spring as shown in the figure, but can be elastomer block alternatively.

Two turnover panel shape lower spring cups 8 are preferably provided with corresponding longitudinally outstanding groove 12 in each lower edge, for the longitudinally recessed groove corresponding with two that are set in parallel in the mid portion 14 that projects upwards from bottom 5 13 tiltables contacts, as by Fig. 8 and Fig. 9 especially clearly as shown in.

Each lower turnover panel shape spring base 8 is provided preferably with inclined element 15, described inclined element 15 is eliminated the bending of spring around its longitudinal axis for the obliquity of the bottom of contact spring 3 change by counterbalance spring seat 8, as also by Fig. 8 and Fig. 9 most clearly as shown in.

The form that is used for the tie point of each arm is preferably corresponding lug boss 16, described lug boss 16 is pivotally connected to each corresponding arm 9, and is provided with threaded portion 10 for guide adjustment bar 11 by passing through screw thread openings with the corresponding level being threaded with described threaded portion 10.Each lug boss 16 is preferably supported between two lateral branches portions of each corresponding arm 9, and the pivot center of described lug boss is parallel on the tilt axis of turnover panel shape lower spring cup 8 and the longitudinal axis perpendicular to adjusting rod.Lug boss is as according to describing and accompanying drawing is provided to the horizontal screw thread openings in tie point to remain on apparently the different obliquities of lower spring cup 8 for those skilled in the art.Further, preferably in the outer end of the threaded portion 10 of adjusting rod 11, arrange latch, also in Fig. 8 and Fig. 9 clearly shown in.

Upper spring seat 7 is provided preferably with the corresponding general conical convergent portion 18 of the inner end that is suitable for coil spring 3, and the recess that is formed as in top 4 of conical shaped convergent portion 18.

The present invention is not limited to above description, but can in the protection domain of claims, change.

Claims

1. one kind has the device of the tilt stand (1) for chair, wherein the seat of chair (2) can overcome from the elastic force of grade resistance spring (3) forward and recede, wherein tilt stand (1) has the top (4) at the seat (2) that can be connected to chair and can be connected to the underframe (6) of chair and can be connected to obliquely the bottom (5) of top (4), and, can regulate grade resistance by the prestretched of regulating spring (3), the distance of wherein distributing to the upper spring seat (7) of top (4) and distribute between the lower spring cup (8) of bottom (5) is changed,

It is characterized in that, two lower turnover panel shape spring bases (8) relative to each other mutual relative tilt are arranged for changing described distance, wherein each lower spring cup (8) is provided with the corresponding arm or the part (9) that in being operatively threaded with the threaded portion (10) that shares rotatable adjusting rod (11), project upwards, wherein by rotary regulating lever (11) change arm (9) along the distance between the tie point of threaded portion (10), and therefore change the mutual relative tilt position of lower spring cup (8).

2. device according to claim 1, is characterized in that, spring (3) is coil spring or elastomer block.

3. device according to claim 1 and 2, it is characterized in that, described two turnover panel shape lower spring cups (8) are provided with corresponding longitudinally outstanding groove (12) in each lower edge, tilting to contact with two corresponding longitudinally recessed grooves (13) that are arranged in parallel in the mid portion (14) projecting upwards from bottom (5).

4. according to the device described in any one in aforementioned claim 1-3, it is characterized in that, each lower turnover panel shape spring base (8) is provided with inclined element (15), and the obliquity that described inclined element also passes through the change of compensation lower spring cup (8) for the bottom of contact spring (3) is eliminated the bending of spring (3) around its longitudinal axis.

5. according to the device described in any one in aforementioned claim 1-4, it is characterized in that, the form that is used for the tie point of each arm (9) is corresponding lug boss (16), described lug boss can be rotationally coupled to each corresponding arm (9), and be provided with for the threaded portion (10) of guide adjustment bar (11) by and pass through screw thread openings with the corresponding level of described threaded portion (10) thread interference.

6. device according to claim 5, it is characterized in that, each corresponding lug boss (16) is supported between two lateral branches portions of each corresponding arm (9), and the pivot center of described lug boss is parallel to the tilt axis of turnover panel shape lower spring cup (8) and the longitudinal axis perpendicular to adjusting rod (11).

7. according to the device described in any one in aforementioned claim 1-6, it is characterized in that, latch (17) is arranged in the outer end of threaded portion (10) of adjusting rod (11).

8. according to the device described in any one in aforementioned claim 2-7, it is characterized in that, upper spring seat (7) is provided with the corresponding general conical convergent portion (18) of the inner end that adapts to coil spring (3), and wherein general conical convergent portion (18) is formed as the recess in top (4).