CN214803611U

CN214803611U - Dynamic frame of chair

Info

Publication number: CN214803611U
Application number: CN202120340312.2U
Authority: CN
Inventors: 斯蒂芬·瓦斯科; 马塞尔·雷布洛斯
Original assignee: Spinnag Ag
Current assignee: Spinnag Ag
Priority date: 2020-02-06
Filing date: 2021-02-03
Publication date: 2021-11-23
Anticipated expiration: 2031-02-03
Also published as: DE202021100458U1; US20210244188A1; CZ33883U1

Abstract

A dynamic frame of a chair is proposed, which comprises a seat support (1), to which a rotary sleeve (3) is detachably attached from one side, into which a spherical head (41) of a spherical threaded rotary piece (4) with a threaded end piece (42) fits tightly, a nut (7) is detachably attached to the threaded end piece, and a damper bushing (2) is detachably attached from the other side to the seat support, to which a ring-shaped locking ring (6) with four locking undercuts (61) and four locking noses (62) is detachably attached from one side, and to which a frame sleeve (5) with a sliding bore (53) and four sleeve noses (51) and four sleeve reinforcements (52) is detachably attached from the other side.

Description

Dynamic frame of chair

Technical Field

The technical solution relates to a dynamic frame of a chair, in particular a seating area of a chair with a stable seating mechanism, more particularly for office chairs, to provide an optimal spinal posture when seated.

Background

Heretofore, chairs have typically included a fixed seat that can only be adjusted up and down. These solutions include a seat that is tightly connected to the back of the chair and its adjustable mechanism. Their disadvantage is that such designs do not address the problem of unilateral pressure applied to the spinal and pelvic regions.

A known technical solution is described in registered slavack utility model No. 7183 entitled "a Chair with Balancing Mechanism", wherein the Chair Balancing Mechanism comprises a flexible device mounted between the seat and the Chair legs, wherein the progressive winding spring represents the flexible device, and a stabilizing Mechanism is mounted between the seat and the Chair legs from the outside of the flexible device. A drawback of this technical solution is the difficulty of not being able to control the balance according to the weight of the seated person.

Another known technical solution is described in registered slavack utility model No. 5675 entitled "a Chair with Seat Stabilizing Mechanism". The chair comprises an adjustable section which is detachably attached from one side to the base and from the other side is tightly fixed to a frame with a stable backrest, to which frame also the engaging element is tightly connected, pivotally mounted in a sleeve from the other side, tightly connected to an unstable seat cushion and/or an unstable seat. A drawback of this technical solution is the difficulty of not being able to control the balance according to the weight of the seated person.

Another known technical solution is described in registered slavack utility model No. 5251 entitled "a Chair with Right and Left Flexible Seating areas", wherein the Right and Left Flexible Seating portions are coupled by an engagement mechanism and a spring mechanism that are further connected with the center leg of the Chair. A disadvantage of this technical solution is that it exerts undesirable pressure on the back and waist of the seated person when sitting for a long time.

SUMMERY OF THE UTILITY MODEL

The above-mentioned drawbacks are largely overcome by the dynamic frame of the chair disclosed in this technical solution. The principle is that it comprises a seat support (seat holder), to which a rotating sleeve (driven sleeve) is detachably attached from one side, into which a spherical head of a spherical threaded rotating member with a threaded end piece is tightly fitted, and a nut is detachably attached to the threaded end piece. From the other side, a shock absorber bush (shock block bushing) is detachably attached to the seat support; an annular locking ring having four locking undercuts (locking undercuts) and four locking noses (locking noses) is detachably attached to the shock absorber bushing from one side; a frame sleeve having a sliding bore and four sleeve noses (sleeve noses) and four sleeve reinforcements is detachably attached to the damper bushing from the other side.

Furthermore, it is advantageous to mount the annular locking ring on the seat support.

The present disclosure provides a dynamic frame of a chair, which includes a seat bracket to which a rotary sleeve is detachably attached from one side, a spherical head of a spherical threaded rotary member with a threaded end piece is tightly fitted into the rotary sleeve, a nut is detachably attached to the threaded end piece, and a damper bushing is detachably attached to the seat bracket from the other side, an annular locking ring having four locking undercuts and four locking noses is detachably attached to the damper bushing from one side, and a frame sleeve having a sliding hole and four sleeve noses and four sleeve reinforcements is detachably attached to the damper bushing from the other side.

In some embodiments, the annular locking ring is mounted on the seat support.

Drawings

The figures explain in more detail the outline of the technical solution:

FIG. 1 shows a cross-sectional view of the dynamic frame of the chair with the annular locking ring in a locked position;

FIG. 2 shows an axial side projection of an inner portion of a frame sleeve;

FIG. 3 shows an axial side projection of the annular locking ring; and

figure 4 shows a cross-sectional view of the dynamic frame of the chair with the annular locking ring in the locked position.

Detailed Description

Example 1

The dynamic frame of the chair according to fig. 1 comprises a seat support 1. A brass rotating sleeve 3 is detachably attached to the seat support 1 from one side. The spherical head 41 of the stainless steel spherical threaded rotary member 4 is tightly fitted in the rotary sleeve 3. The threaded end piece 42 is located on the lower portion of the spherical threaded rotating member 4. The nut 7 is removably attached to the threaded end piece 42. A plastic annular locking ring 6 is fastened to the seat carrier 1 from the other side. A rubber damper bushing 2 having a diameter of 60mm is detachably attached to the seat support 1. An annular locking ring 6 is removably attached to the damper bushing 2. According to fig. 3, four locking undercuts 61 are formed in the annular locking ring 6, which are designed for locking a fixed seating position. Furthermore, four locking tooth noses 62 are formed in the annular locking ring 6, evenly distributed over the quarters of the locking ring 6. According to fig. 1, an aluminium alloy frame sleeve 5 is loosely mounted on the damper bushing 2. According to fig. 4, a sliding hole 53 is formed in the frame sleeve 5, which sliding hole 53 is designed to allow the dynamic frame of the chair to slide on the chair base. According to fig. 2, four sleeve noses 51 are formed on the inner side of the frame sleeve 5, which are designed for locking. Also formed on the inside of the frame sleeve 5 are four sleeve reinforcements 52 designed to reinforce the dynamic frame.

Example 2

The dynamic frame of the chair according to fig. 4 comprises a seat support 1. A brass rotating sleeve 3 is detachably attached to the seat support 1 from one side. The spherical head 41 of the stainless steel spherical threaded rotary member 4 is tightly fitted in the rotary sleeve 3. The threaded end piece 42 is located on the lower portion of the spherical threaded rotating member 4. The nut 7 is removably attached to the threaded end piece 42. A rubber damper bushing 2 having a diameter of 90mm is detachably attached to the seat support 1 from the other side. A plastic annular locking ring 6 is removably attached to the damper bushing 2. According to fig. 3, four locking undercuts 61 are formed in the annular locking ring 6, which are designed to lock the secured seating position. Furthermore, four locking tooth noses 62 are formed in the annular locking ring 6, evenly distributed along the quarters of the locking ring 6. The aluminium alloy frame sleeve 5 is detachably attached to the annular locking ring 6. A sliding hole 53 is formed in the frame sleeve 5, the sliding hole 53 being designed to allow the dynamic frame of the chair to slide on the chair base. According to fig. 2, four sleeve noses 51 are formed on the inner side of the frame sleeve 5, which are designed for locking. Furthermore, four sleeve reinforcements 52 are formed on the inner side of the frame sleeve 5, which four sleeve reinforcements are designed to reinforce the dynamic frame.

INDUSTRIAL APPLICABILITY

This technical solution can be used to provide a dynamic sitting position on the chair for persons suffering from problems and pain of the spine and lower back, since the design contributes to a positive and healthy sitting position, whereby a good body posture can be obtained, which in turn strengthens the spine and abdominal muscles. At the same time, it does not take into account the rest of the spinal muscles and, by perfectly mimicking the body movements of a seated user, significantly reduces the pressure exerted on the intervertebral disc when the spine is maintained in a desired posture and the back muscles are working properly. This technical solution also provides unique pelvic mobility and does not present low back pain even when sitting for long periods of time.

List of reference numerals

1-seat support

2-shock absorber bushing

3-rotating sleeve

4-spherical threaded rotary member

41-spherical head

42-threaded end piece

5-frame sleeve

51-Sleeve nose

52-Sleeve Reinforcement

53-sliding hole

6-Ring Lock Ring

61-locking undercut

62-locking nose

7-nut.

Claims

1. A dynamic frame of a chair, characterized in that it comprises a seat support (1) to which a rotating sleeve (3) is removably attached from one side, into which a spherical head (41) of a spherical threaded rotating member (4) with a threaded end piece (42) fits tightly, a nut (7) is removably attached to the threaded end piece and a shock absorber bushing (2) is removably attached from the other side to the seat support, to which a ring-shaped locking ring (6) with four locking undercuts (61) and four locking noses (62) is removably attached from one side, and to which a frame sleeve (5) with a sliding hole (53) and four sleeve noses (51) and four sleeve reinforcements (52) is removably attached from the other side.

2. Dynamic frame of a chair according to claim 1, characterized in that the annular locking ring (6) is mounted on the seat support (1).