DE202016100404U1 - Diabetic buffered construction of a chair - Google Patents

Abstract

A bumper-proof buffered structure of a chair, comprising: an elastic support plate (1) fixed to a mounting base (101) of a chair leg (10) of the chair; two deformable buffer members (12) each disposed at two ends of the elastic support plate (1) and projecting from an outer side of the mounting base (101); a seat mounting plate (2) mounted on an underside of a seat surface (20); and a plurality of elastic supports (3), a bolt (31), a screw-hole element (32) and an end-stop screw (33) being provided at each end of said plurality of elastic supports (3) to move the bolt (31) at the screw-hole Element (32) anchored in these supports (3); the bolt (31) has an anchoring end (311) and an external thread (312) protruding from one end of the corresponding elastic support (3); an inner screw hole (313) is formed on a surface of the anchoring end (311); the external thread (312) is mounted on the seat mounting plate (2); the screw hole member (32) has a screw hole (321) for mounting to the corresponding deformable buffer member (12); an end of the screw hole member (32) opposite the screw hole (321) has a small diameter hole (322) and a retaining ridge (323); the retainer shelf (323) is formed between the screw hole (321) and the small diameter hole (322) and immediately adjacent to this small diameter hole (322); the end stop screw (33) is threaded through the small diameter hole (322) in the screw hole member (32) and into the inner screw hole (313) in the bolt (31); with the end stop screw (33), the screw hole element (32) is connected to the bolt (31) and the elastic supports (3) are supported and thus protected from damage by elastic deformations; the end stop screw (33) of each elastic support (3) is screwed into and protrudes from the inner screw hole (313); a deformation by buffering of each elastic support (3) is adjusted according to the variation of a distance between a screw head of the end stop screw (33) and the retaining board (323).

Description

BACKGROUND OF THE INVENTION

1. Technical environment

The present invention relates to a structure of a chair, in particular a fall-proof buffered structure of a chair.

2. State of the art

In the field of chairs, along with the improvements in technical capabilities, increasingly higher demands are placed on a good seating feeling and on the convenience of sitting. For this reason, a buffer structure is provided within the seat of the chair.

In U.S. Patent Application No. 2014/0252824 A1 (marked '824 below), this structure is disclosed in U.S.P. 6 shown. Four rubber sleeves ( 400 . 6 of '824) are between a lower base plate ( 330 . 6 of '824) attached to an upper end of a chair leg ( 310 . 6 of '824), and an upper seat panel ( 220 . 6 of '824) placed on a bottom of a seat of the chair ( 210 . 6 from '824) is provided. Two ends of each rubber sleeve ( 400 . 6 of '824) are via (a) bolt (s) or (a) screw (s) on two connecting parts (nipple 404 . 6 of '824), wherein with this bolt or this screw or with these bolts or screws, the lower base plate ( 330 . 6 from '824) to the upper seat panel ( 220 . 6 of '824) is mounted, so in the 8th to obtain structure shown by '824. The seat of the chair ( 210 . 6 of '824) is due to the elastic deformation of the rubber sleeves ( 402 . 6 from '824) to provide elastic buffering for moving in multiple directions.

However, the abovementioned structure of the chair with the elastic buffering for moving in several directions depends only on a single structure for the elastic buffering, such as the rubber sleeve (FIG. 400 . 6 from '824) so that the formed elastic buffering is limited. One of the disadvantages is inadequate elastic buffering during use.

The 7 of the present invention shows the rubber sleeve ( 402 . 8th from '824) in their deformed state. Since the elasticity of the buffering of this rubber sleeve ( 400 of '824) is insufficient these rubber sleeves ( 402 , of '824) are overloaded and break into two pieces, thereby losing the buffering property when the expansion force of the rubber sleeve ( 400 of '824) for the movement in several directions, the limit force exerted by the rubber bushings ( 402 , from '824), exceeds.

The 8th Finally, the present invention shows a further buffering structure of the rubber sleeve ( 402 from '824). Exceeds the expansion force of the rubber sleeve ( 400 of '824) during the movement in several directions the limit force of the attachment of the rubber sleeve ( 402 of '824) and the connection part (nipple 404 of '824), the connecting part (nipple 404 pulled from '824) and from the rubber sleeve ( 402 of '824), thereby losing the elastic buffering property.

In summary, the structure of the chair with the elastic buffer ring for moving in multiple directions in use has the following disadvantages.

First, the single elastic buffering structure for the elastic buffering can be formed only to a limited extent, resulting in insufficient elasticity in buffering and thereby compromising sitting comfort.

Second, if the elastic buffering is insufficient and the pulling force for moving the chair is the resilience of the rubber sleeve ( 402 of '824), the rubber sleeve may break into two pieces, thereby losing the elastic buffering property.

Thirdly, if the expansion force of the rubber sleeve ( 400 of '824) for the movement in several directions the limit force of attachment of the rubber sleeve ( 402 of '824) and the connection part (nipple 404 of '824), the connection part (nipple 404 pulled from '824) and from the rubber sleeve ( 402 of '824), thereby losing the elastic buffering property.

In view of the above-mentioned disadvantages, the inventor has invested a lot of time in the study of knowledge in this field, comparing the advantages and disadvantages, and researching and developing the related products. After numerous experiments and tests finally the inventive "over-proof buffered construction of a chair" was created to avoid the above-mentioned disadvantages and on the other hand to meet the needs of the user.

OBJECT OF THE PRESENT INVENTION

The critical purpose of the present invention is to solve the disadvantages of the prior art. These disadvantages are below listed. First, the buffering elasticity is insufficient because only a single elastic buffering construction is used, which does not guarantee comfort when sitting. Second, the rubber sleeve may snap in, thereby losing the elastic buffering property. Third, the connecting part (the nipple 404 in US 2014/0252824 ) are pulled out as mentioned above and so separated from the rubber sleeve.

The first object of the present invention is to provide a fall-proof buffered structure of a chair. The deformable buffer elements can be deformed, wherein the elastic supports are stretched to deform, so that with a better geometry of the suspension better elastic buffering for supporting the seat is achieved and therefore the feeling and comfort when sitting are significantly improved.

The second object of the present invention is to provide a fall-proof buffered structure of a chair. The bolt and the screw hole member, which are arranged at both ends of the elastic support, are fastened to each other via the end stop screw to support the elastic support and to protect it from damage by elastic deformations.

In order to achieve the above object, there is a high-security buffered structure of a chair made of an elastic support plate fixed on a mounting base of a chair leg of the chair; two deformable buffer members which are arranged on each one of the two ends of the elastic support plate and protrude from an outer side of the mounting base; a seat mounting plate mounted on an underside of the seat surface of the chair; and a plurality of elastic pillars, to each of which one end a bolt, a screw hole member and an end stop screw are fixed to secure the bolt to the screw hole element anchored in this end. The bolt has an anchoring end and an external thread protruding from an end of the corresponding elastic support. An inner screw hole is formed in an upper surface of the anchoring end. The male thread is attached to the seat mounting plate. The screw hole member has a screw hole to mount the corresponding deformable buffer member. One end of the screw hole member opposite to the screw hole has a small-diameter hole and a retaining ridge, which retaining ridge is formed between the screw hole and the small-diameter hole and immediately adjacent to the small-diameter hole. The end stop screw is threaded through the small diameter hole in the screw hole member and into the inner screw hole of the bolt. With the end stop screw, the bolt is attached to the screw hole element to thereby support the elastic supports and to protect them from damage due to the plastic deformation. The end stop screw of each elastic support is screwed into and protrudes from the inner screw hole. Buffering deformation of each elastic support is adjusted according to the variation of a distance between a screw head of the end stop screw and the retaining rims.

In some embodiments, the resilient support plate has a plurality of mounting holes for mounting to the corresponding mounting leg of the chair leg, with two flexible plates each extending from one side of each deformed part and a fitting hole formed at the outer end thereof.

In some embodiments, a reinforcing plate for reinforcing is attached to the seat mounting plate, the reinforcing plate having a plurality of mounting holes for mounting with the corresponding external threads. The seat mounting plate is formed with connecting plates for mounting to the seat surface using a plurality of connecting bolts for each of the two connecting plates.

In some embodiments, a number of the elastic supports correspond to those of the flexible platelets. A first anchoring groove is disposed at a periphery of the anchoring end of the bolt to securely fasten the elastic posts, while a second anchoring groove is formed at a periphery of the screw hole member for securely attaching to the elastic posts.

The various objects and advantages of the present invention will become more apparent from the following detailed description made with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

1 Figure 11 is an exploded view of a fail-safe buffered structure of a chair of the present invention;

2 Fig. 12 is a perspective view of the fail-safe buffered structure of a chair of the present invention mounted on a chair leg and a seat surface of the chair;

3 Fig. 12 is a cross-sectional view of the elastic supports of the down-proof buffered structure of a chair of the present invention;

4 Fig. 12 is a plan view of the overflow-proof buffered structure of a chair of the present invention;

5 Fig. 12 illustrates a view of the use of the fail-safe buffered construction of a chair of the present invention for support and elastic cushioning of the seat by bending, expansion and contraction;

6 Figure 12 is a cross-sectional view of the overfull-proofed buffered structure of a chair of the present invention with the end stop screw secured to the bolt and the screw-hole element disposed to extend at either one end of each resilient support;

7 shows a structural view of 8th the patent application US 2014/0252824 A1, in which the rubber sleeve 402 is deformed; and

8th shows a further view of the structure of the 8th the patent application US 2014/0252824 A1, in which the rubber sleeve 402 is deformed.

WAYS FOR CARRYING OUT THE INVENTION

To clearly emphasize that the above object and the function are achieved with the present invention, the technical features and the desired function with reference to a preferred embodiment and to the accompanying drawings are explained below.

The 1 to 4 show that a fall-proof buffered structure of a chair of the present invention consists of an elastic support plate 1 , a seat mounting plate 2 and of several elastic supports 3 can exist. The elastic carrier plate 1 is on a mounting ground 101 of the chair leg 10 attached to the chair. Two deformable buffer elements 12 are each at one of the two ends of the elastic support plate 1 attached and stand from an outer side of the ground 101 in front. The seat mounting plate 2 is on a bottom of a seat 20 attached to the chair. At each end of the elastic supports 3 are a bolt 31 , a screw hole element 32 and an end stop screw 33 attached to the bolt 31 at the screw hole element 32 that in this prop 3 anchored to fasten. The bolt 31 has an anchorage end 311 and an external thread 312 on, from one end of the corresponding elastic support 3 protrudes. An inner screw hole 313 is on a surface of the anchorage end 311 educated. The external thread 312 is on the seat mounting plate 2 attached. The screw hole element 32 has a screw hole 321 for mounting to the corresponding deformable buffer element 12 on. One end of the screw hole element 32 opposite the screw hole 321 has a hole 322 with a small diameter and a retaining board 323 on. The retaining rims 323 is between the screw hole 321 and the hole 322 with a small diameter and immediately next to the hole 322 formed with a small diameter. The end stop screw 33 is through the hole 322 with a small diameter in the screw hole element 32 and into the inner screw hole 313 in the bolt 31 screwed. With the end stop screw 33 becomes the screw hole element 32 with the bolt 31 connected, the elastic supports 3 Protected against damage due to elastic deformation. The end stop screw 33 every elastic support 3 is in the inner screw hole 313 screwed and protrudes out of this. Deformation by buffering each elastic support 3 Depending on the change in a distance between a screw head of the end stop screw 33 and the retaining board 323 adjusted.

The embodiment described above constitutes the feature of the main capability of the present invention and corresponds to claim 1 of the present invention, to set forth in detail the object and the embodiments of the present invention, while with the features of the subclaims the detailed description of claim 1 serve or with these other features of the ability to be presented, these are not limited thereto. It is to be understood that claim 1 does not necessarily include the features of the subclaims.

The 1 to 4 show that the elastic backing plate 1 for mounting to the corresponding mounting base 101 of the chair leg 10 several mounting holes 11 having. Two flexible tiles 13 extend from two sides of each deformed part 12 , while in the outer end of a connection hole 131 is formed. On the seat mounting plate 2 is a reinforcing plate for reinforcement 22 attached. The reinforcement plate 22 has to mount the corresponding external thread 312 of the bolt 31 several mounting holes 221 for reinforcement. The seat mounting plate 2 is for mounting on the seat 20 from two connecting plates 21 , On each of these two connecting plates 21 are several connecting screws 211 attached. In addition, a number of elastic supports corresponds 3 that of the flexible tiles 13 , A first anchoring groove 314 is for secure attachment to the elastic supports at a periphery of the anchoring end 311 of the bolt 31 and a second anchoring groove 324 for secure attachment to the elastic Support 3 to a periphery of the screw hole element 32 arranged.

The 5 shows that the two deformable buffer elements 12 the elastic carrier plate 2 depending on the elastic supports 3 are fixed, which stretched to deform and then between the chair leg 10 and the seat 20 be worn. Like this with the arrow in the 5 is shown, the deformable buffer elements 12 at the two ends of the elastic support plate 1 are arranged bent to deform, wherein the elastic supports 3 to be stretched for deforming when the seat intended for sitting 20 is shifted in the arrow direction, so that with a better geometry of the suspension and a better elastic buffering to support the seat 20 achieved, which also the feeling and comfort when sitting are significantly improved.

The 6 shows that the end stop screw 33 for connecting the bolt 31 with the screw hole element 32 which are each at one of the two ends of the elastic support 3 is anchored to effectively support the elastic supports and to protect against damage due to the elastic deformation. The 3 shows that the display H is a height of the elastic support 3 prior to their extension. Before stretching this elastic support 3 become the head 331 the end stop screw 33 and the retaining rims 323 of the screw hole element 32 separated at a distance. The 6 shows that the display H1 to a height of the elastic support 3 after extending it. When expanding the elastic support 3 the head bumps 331 to the retaining rims 323 to the extent of the elastic column 3 to limit and thus snapping this elastic column 3 to prevent. In addition, the depth is in the inner screw hole 313 screwed in end stop screw 33 different, so the head 331 the end stop screw 33 near or at a distance to the retaining board 323 is to deformation by buffering the elastic column 3 to adjust.

The 6 further shows that with the anchoring grooves 314 . 324 at the periphery of the bolt 31 and the screw hole element 32 a secure fastening to the material structure of the two ends of the elastic support 3 ensured and a separation is prevented. Thus, the effect of a durable use can be achieved.

According to the above descriptions, the elastic backing plate becomes 1 with the two deformable buffer elements 12 to the elastic support 3 attached, which is expandable, contractible and deformable to a support between the chair leg 10 and the seat 20 to build. Both ends of the elastic support 3 are ever between the bolt 31 and the screw hole element 32 anchored and over the end stop screw 33 at the bolt 31 and at the screw hole element 32 attached. The anchoring grooves 314 . 324 are at the periphery of the bolt 31 or the screw hole element 32 arranged to largely obviate the disadvantages of the prior art embodiment. The advantages of the present invention are as described below.

First, the deformable buffer elements are bent to deform and the elastic supports 3 extended to deform so that with better geometry of the suspension also better elastic buffering to support the seat 20 achieved, which also the feeling and comfort when sitting are significantly improved.

Second, the bolt 31 and the screw hole element 32 attached to the two ends of the elastic support 3 are arranged over the end stop screw 33 fastened together to the elastic support 3 to wear and to protect them from damage because of the elastic deformation.

Third, with the anchoring grooves 314 . 324 at the periphery of the bolt 31 or the screw hole element 32 are arranged, a secure fastening to the elastic support 3 guaranteed and a separation of these prevented, and then to achieve the effect of a durable use.

With the above descriptions, only embodiments as examples of the present invention are shown, and the scope of the claims of the present invention should not be limited by these embodiments. Equivalent embodiments or modifications without departing from the spirit and scope of the present invention should therefore be included.

The illustrated construction of the invention does not exist in the prior art, and this illustrated construction has better efficacy than the prior art structure, so this is a novel and creative invention, and thus this application will be presented in accordance with the Patent Law should.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 2014/0252824 [0012]

Claims (4)

An all-round buffered structure of a chair, comprising: an elastic support plate ( 1 ) attached to a fixing ground ( 101 ) of a chair leg ( 10 ) of the chair is attached; two deformable buffer elements ( 12 ), each at two ends of the elastic support plate ( 1 ) are arranged and from an outside of the mounting base ( 101 ) project; a seat mounting plate ( 2 ) placed on a bottom of a seat ( 20 ) is mounted; and several elastic supports ( 3 ), wherein at each end of these multiple elastic supports ( 3 ) a bolt ( 31 ), a screw hole element ( 32 ) and an end stop screw ( 33 ) are provided to the bolt ( 31 ) at the screw hole element ( 32 ), which in these supports ( 3 ) is anchored to fasten; the bolt ( 31 ) an anchoring end ( 311 ) and an external thread ( 312 ) received from one end of the corresponding elastic support ( 3 ); an inner screw hole ( 313 ) on a surface of the anchoring end ( 311 ) is formed; the external thread ( 312 ) on the seat mounting plate ( 2 ) is mounted; the screw hole element ( 32 ) for mounting to the corresponding deformable buffer element ( 12 ) a screw hole ( 321 ) having; one end of the screw-hole element ( 32 ) opposite the screw hole ( 321 ) a hole ( 322 ) with a small diameter and a retaining board ( 323 ) having; the retaining rims ( 323 ) between the screw hole ( 321 ) and the hole ( 322 ) with a small diameter and immediately next to this hole ( 322 ) is formed with a small diameter; the end stop screw ( 33 ) through the hole ( 322 ) with a small diameter in the screw hole element ( 32 ) and into the inner screw hole ( 313 ) in the bolt ( 31 ) is screwed; with the end stop screw ( 33 ) the screw hole element ( 32 ) with the bolt ( 31 ) and the elastic supports ( 3 ) are worn and thus protected from damage by elastic deformation; the end stop screw ( 33 ) of each elastic support ( 3 ) in the inner screw hole ( 313 ) is screwed and protrudes from this; a deformation by buffering each elastic support ( 3 ) depending on the change in a distance between a screw head of the end stop screw ( 33 ) and the retaining board ( 323 ) is adjusted. The structure according to claim 1, wherein the elastic support plate ( 1 ) for mounting to the ground ( 101 ) of the chair leg ( 10 ) several mounting holes ( 11 ) having; two flexible plates ( 13 ) each from one of the two sides of each deformed part ( 12 ) and a connection hole ( 131 ) is formed in its outer end. The structure of claim 1 or 2, wherein on the seat mounting plate ( 2 ) for reinforcing a reinforcing plate ( 22 ) is mounted; the reinforcement plate ( 22 ) for mounting with the corresponding external thread ( 312 ) several mounting holes ( 221 ) for amplification; on the seat mounting plate ( 2 ) for mounting to the seat ( 20 ) two connecting plates ( 21 ) are attached; and on each of the two connection plates ( 21 ) several connecting screws ( 211 ) are provided. The structure according to claim 2 or 3, as far as claim 3 relating to claim 2, wherein a number of elastic supports ( 3 ) of the flexible tiles ( 13 ) corresponds; for secure attachment to the elastic supports ( 3 ) a first anchoring groove ( 314 ) at a periphery of the anchoring end ( 311 ) of the bolt ( 31 ) and for secure attachment to the elastic supports ( 3 ) a second anchoring groove ( 324 ) at a periphery of the screw hole element ( 32 ) is arranged.

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