JPH07250726A - Arrangement of fastener especially for chair - Google Patents

Abstract

PURPOSE: To enable various mutual angle positions between a seat and a backrest to be allowed by equipping a means to allow adjustment of the length of a fastener part and a means to incline the fastener part. CONSTITUTION: A means to allow changing of the length of a third fastener part of a fastener 1A is equipped with an outer tubular body 25 attached on a second fastener part 2, houses an inner slide tube 27 to retain a mounting means 28 at an outer part 27a thereof together with a sliding layer 26, and slidably equipped with the inner slide tube 27 on the front part of a seat. The third fastener part 3 is made inclinable by a second fastener part 2 to make an inclined bolt 8 and a coil spring 18 cooperate at an angle α. Thus incline movement or swing movement of a chair can be smoothly carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener arrangement for a chair, and more particularly for a chair having a seat and a back which can assume different mutual angular positions.

[0002]

BACKGROUND OF THE INVENTION Although fasteners for chairs of the above-described art are known to date, such fasteners have previously only been able to use the tilt feature of the fastener in question. Furthermore, it is stretched,
Fasteners that allow for changes in the angular position between the seat and the back of the chair are known, but such extensible fasteners return various parts of the fastener to their initial position, or between the back and seat. It was not equipped with a deflection means that contributes to the small power-consuming change of angular position.

It is an object of the present invention to provide a combined sliding and tilting fastener, especially for a free seat and a working chair, which is not hindered by the aforementioned disadvantages.

It is a further object of the present invention, apart from allowing different mutual angular positions of the seat and the backrest, independently of the angular position, the backrest and seat take relative to each other, the rocking of the backrest and the seat, and And / or a sliding and tilting fastener for a particularly flexible seat and work chair that allows tilting movement.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the above object comprises means for permitting adjustment of the length of a fastener portion with respect to one or more portions of the fastener and means for tilting the fastener portion. It is achieved in a formalized arrangement characterized by comprising.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS From the foregoing and appended claims, the present invention is particularly directed to a chair 2, more specifically,
It can be seen that the arrangement is in a fastener 1A for a chair with a seat 14 and a backrest 13 which can take various angular positions β1, β2.

Common to the illustrated embodiment is that the arrangement is a means 9, 18 for the inclination B of the fastener part 2.
Means for allowing length adjustment of the fastener portion 3 with respect to one or more portions of the fastener 1A,
27 and 29 are provided.

Furthermore, the arrangement is such that the first fastener part 1 is stationary with respect to the base 6 of the chair 2A, the second fastener part 2 is inclined with respect to the first fastener part 1 about a substantially horizontal axis C2, 2 Third fastener portion 3 protruding from fastener portion 2 and extendable / retractable
It can be seen that it has

Particularly from FIG. 1, the first fastener part 1 is
At the first end 4, it comprises a sleeve 5 for attaching to a chair base, for example the top of a base strut 6 having a substantially vertical central axis C1, the first fastener part 1 comprising an upper part 7 and two side walls 8a respectively. 8b is designed, and it can be seen that the first fastener part 1 bears in its rear wall part with respect to the first fastener 1 about which the second fastener 2 holds a tilting bolt 9 on which it tilts.

By comparing, inter alia, FIGS. 1 and 5 and 6, the second fastener portion 2 comprises an upper portion 10 and side walls 10a and 10b, respectively, and the second fastener portion 2 is, for example, a rear wall portion. In 11a and 11b,
For example, holding a support means 12 for supporting a swivel chair back 13 which pivots with respect to the second inclinable fastener part 2, a horizontal swivel axis C3 of the chair back being positioned at a distance from the chair back 13 so that the swivel back. The lower part 13a of the seat is swivelable or chair seat 14
It can be seen that there is a link 14x to the rear part 14a of the.

In order to provide relative movement between the stationary first fastener part 1 and the tiltable second fastener part 2, the invention provides that the first fastener part 1 has at its upper part 7
The first fastener 15 is provided, the second fastener portion 2 is provided with a second opening 16 in its upper portion 10, and the second fastener portion 2 is provided with
The fastener portion 2 is preferably the first fastener portion 1
Adjustable biasingly with respect to the clamping rod 17
But the first and second holes 1 in the respective upper parts 7, 8
It is suggested that it penetrates 5, 16 and cooperates with an adjustable deflection means, for example a coil spring 18.

The tightening rod 17 has an upper portion,
The tightening rod 17 is provided with a head 19 which abuts against the upper surface of the upper part 10 of the second fastener part 2 and the lower part of which the tightening rod 17 has a butting part 22 against the lower end of the coil spring 18 of the tightening knob 21. A screw thread 20 for providing the upper end of the coil spring 18 abuts against the inside of the upper portion 7 of the first fastener portion 1.

By manually screwing in the tightening knob 21, the deflection between the stationary fastener part 1 fixedly mounted on the base 6 of the chair and the inclinable second fastener part 2 by means of its sleeve 5 can be adjusted. It is possible, and this adjustment or tightening is adapted depending on whether the user of the chair on which the fastener is to be installed wants to make the tilting or rocking movement of the chair gentle or tight.

In order to keep the tilting movement of the second fastener part 2 within certain limits, the first fastener part has its side wall 8
In the front part of a, 8b, the extension track 23
a and 23b are provided, and the butt pins 24a and 24b in the second fastener portion 2 are
Suitably, each can be moved by the latter tilting movement.

With respect to the means for allowing the aforementioned variation in the length of the fastener part 3 with respect to one or more parts of the fastener 1A, this means is attached to the second fastener part 2, as can be seen from FIGS. 1 and 2. Outer tubular body 25
And the outer portion 2 thereof together with the sliding layer 26.
The inner sliding tube 27 holding the mounting means 28 is housed at 7a, and the sliding tube 27 is slidably mounted, for example, on the seat 14 of the chair 2A, preferably the front portion 14b of the seat 14.

An example of how the chair 2A may be arranged with respect to such a fastener 1A is specifically shown in FIGS. From here it can be seen that the protruding extensible / retractable third fastener part 3 is attached to the second tiltable fastener part 2 at an angle α.

A suitable example of construction is when the protruding extensible / retractable third fastener portion 3 is horizontal, for example when the second fastener portion 2 is in its one extreme (minimum) tilted position (FIG. 1). With an angle α1 of about 22 ° and, for example, the second fastener part 2 is at its second extreme (highest).
When in the tilted position (FIG. 4), the angle α2 is about 42 °, and the second fastener portion 2 which can be tilted projects obliquely upward.

In order to provide a sliding or extendable / retractable movement of the third fastener part 3, in particular from FIG. 2, the mounting means 28 is a deflection means, for example a coil spring 29 passing through the inside of the sliding tube 27. Mounted on the inner end 29b thereof
At, it can be seen that it is fitted to the bottom 25a of the tubular body, for example the plug fitted to the tubular body 25. From FIG. 3, the fastener 1A comprises means 30 for locking the second fastener part 2 in a tilted position, and such locking means comprise respective extension on the side walls 8a, 8b of the first fastener part 1. Second to lock the pin with respect to the tracks 23a, 23b
The aforementioned butt pin 24 in the fastener portion 2
It can be seen that it cooperates properly with a and 24b.

The main features and aspects of the present invention are as follows.

1. In particular, in the arrangement of the chair (2), more specifically the fastener (1A) for the chair, which comprises a seat (14) and a backrest (13) that can assume various mutual angular positions (β1, β2), Fastener (1A)
Fastener parts for one or more parts of (3)
An arrangement characterized in that it comprises means (26, 27, 28) for allowing adjustment of the length of the fastener and means (9, 18) for the inclination (B) of the fastener part (2).

2. A first fastener portion (1) that is stationary with respect to the base (6) of the chair (2A) and a second fastener portion (2) that is tiltable about a substantially horizontal axis (C2) with respect to the first fastener portion (1). ) And an extensible / retractable third fastener portion (3) projecting from the second fastener portion (2).

3. The first fastener portion (1) comprises a sleeve (5) for attaching to a chair base at the first end (4), for example the top of a base strut (6) having a substantially vertical central axis (C1). , The first fastener part (1)
But on top (7) and two side walls (8a and 8b respectively)
And the first fastener portion (1) is stationary with respect to the first fastener portion (1) in the rear wall portion, around which the second fastener portion (2) is inclined. 9) The arrangement as described in 1 or 2 above, which holds.

4. The second fastener portion (2) comprises an upper portion (10) and the side walls (10a, 10b, respectively), and the second fastener portion (2) is, for example, at the rear wall portion (11a, 11b). , Support means (1) for supporting a pivotable backrest (13), for example with respect to the tiltable second fastener part (2)
2) is held and the horizontal swivel axis (C) of the chair back (13) is held.
3) is spaced from the chair back (13), the lower part (13a) of the chair back (13) is swivelable or linked (14x) to the rear part (14a) of the chair seat (14). Arrangement according to any of the above, characterized in that

5. The first fastener part (1) comprises a first opening (15) in its upper part (7) and the second fastener part (2) comprises a second opening (16) in its upper part (10). And the second fastener part (2) is preferably arranged adjustably biased with respect to the first fastener part (1) and the tightening rod (17) is
Pass through the first and second holes (15, 16) in the respective upper portions (7, 8 respectively) and cooperate with adjustable deflection means, eg coil springs (18). An arrangement as described in any of the above characterized.

6. The clamping rod (17) comprises in its upper part a head (19) which abuts against the upper surface of the upper part (13) of the second fastener part (2), the clamping rod (17) in its lower part. , Coil spring (1
8) Threads (20) for screwing in a tightening knob (21) with a butting part (22) for the lower end
Arrangement according to claim 5, characterized in that the upper end of the coil spring (18) abuts against the inside of the upper part (7) of the first fastener part (1).

7. The first fastener part is provided with extension tracks (23a, 23b, respectively) at the front part of its side walls (8a, 8b), along which track,
Arrangement according to any of the preceding claims, characterized in that the butting pins (24a, 24b, respectively) in the second fastener part (2) can be moved by tilting movement of the latter.

8. Means for allowing length adjustment of the fastener portion (3) with respect to one or more portions of the fastener (1A) comprises an outer tubular body mounted with respect to the second fastener portion, together with a sliding layer (26), Mounting means (2
8) housing an inner sliding tube (27) holding it at its outer part (27a), for example a seat (14) of a chair (2A), preferably the front part (14) of the seat (14).
Arrangement according to any of the above, characterized in that a sliding tube (27) is slidably mounted in b).

9. Extendable / retractable third protruding
Arrangement according to any of the preceding claims, characterized in that a fastener part (3) is attached to the second tiltable fastener part (2) at an angle (α).

10. The protruding extensible / retractable third fastener portion (3) is, for example, an angle of about 22 ° with respect to the horizontal when the second fastener portion (2) is in its one extreme (minimum) tilted position (FIG. 1). (Α1), and, for example, an angle (α2) of about 42 ° when the second fastener part (2) is in its second extreme (highest) tilted position (FIG. 4).
10. The arrangement according to the above 9, wherein the second fastener portion (2) that can be tilted projects obliquely upward.

11. The mounting means 28 includes a deflection means, for example, a coil spring (2) penetrating the inside of the sliding tube (27).
9) at its inner end (29b), the bottom (25e) of the tubular body (15), for example the tubular body (2).
The arrangement according to the above 9 or 10, which is mounted on the plug mounted on 5).

12. Arrangement according to any of the preceding claims, characterized in that the fastener (1A) comprises means (30) for locking the second fastener part (2) in an inclined position.

[Brief description of drawings]

FIG. 1 is a cross section of an embodiment of this arrangement in a fastener.

2 is a cross-section of the fastener portion of the fastener shown in FIG.

FIG. 3 is a top cross section of an embodiment of the arrangement in the fastener shown in FIG.

FIG. 4 is a schematic side view similar to the view shown in FIG. 1, but showing certain fastener portions in various tilt positions allowed by the fastener according to the invention.

FIG. 5 is a schematic side view of an embodiment of an arrangement of fasteners for holding a seat and a chair with a backrest that can assume various mutual angular positions, showing the fasteners in a stationary position, but with the backrest and the seat Shown in two different angular positions.

FIG. 6 is a schematic side view similar to FIG. 5, but showing a portion of the fastener in the upper tilted position, depicting two different angular positions of the backrest of the chair and the seat.

[Explanation of symbols]

 1 1st Fusner part 2 Chair 3 Fusner part 6 Base 7 Upper part 9 Tilt bolt 13 Backrest 14 Seat

Claims (1)

[Claims] 1. A fastener part for one or more parts of the fastener, in particular for a chair, and more particularly for the arrangement of a fastener for a chair with a seat and a back which can assume different mutual angular positions. An arrangement comprising means for allowing adjustment of the length of the fastener and means for tilting the fastener portion.