KR102458967B1 - Contact the chair back - Google Patents

Abstract

The present invention relates to a chair close to the waist, and the seat plate part, the buttock part, and the backrest part are respectively hinged so that the hip part rotates to distribute the rotation amount of the hinge during the tilting operation of the backrest part, thereby reducing the amount of rotation of the backrest part hinge have.

Description

Back chair {Contact the chair back}

The present invention relates to a chair close to the waist, and more particularly, when the backrest part is tilted, the hip part rotates to disperse the rotation amount of the hinge, prevent the hip from moving forward, and the part supporting the lumbar spine protrudes so that the waist is the chair It relates to a chair that closely adheres to the waist.

In general, when a user performs work or receives an education while seated in a chair, he/she is seated so that the buttocks are biased to one side of the seat plate.

That is, a general chair has a structure in which the user can lean on the user's back on the backrest when sitting on the seat plate so that the user can comfortably sit, but most people perform work or receive education in a state where they do not lean on it.

Therefore, there is no difficulty in using it for a short time, but if you are an office worker or a student receiving education, you can work while sitting in a chair for a long time. , it has the disadvantage of feeling tired easily.

In addition, when the user leans against the backrest to take a rest while seated on the conventional seat plate, the user's buttocks slide forward and space is created in the lumbar region, resulting in a comfortable rest, etc. It has the disadvantage of increasing discomfort.

In other words, there is a need for a chair that does not create a space in the lumbar region when leaning on the backrest.

As shown in the Republic of Korea Utility Model Registration No. 20-0401280, the prior art for performing the above function is a seat, one side is hinged to the lower part of the seat, and an elastic member having a predetermined elastic force is fastened to one end of the seat, An elastic frame that rotates, a backrest that is fixed upright to the other extended end of the elastic frame and moves back and forth by vertical rotation of the elastic frame, and one end is fixed to one side of the bottom surface of the seat and is mounted on the lower back support portion of the backrest The end of the support frame is extended, and the rear upper part is hinged to the waist support part of the backrest, and the rear lower part is coupled to the other end of the support frame to be movable up and down, so that the upper part rotates at the same time as the front and rear flow of the backrest. The lower part is configured including a back support that moves back and forth.

However, the prior art configuration has the following problems.

There is a problem in that the tilting operation of the backrest is concentrated on a single hinge of the backrest.

In addition, there is a problem in that the buttocks move forward during the tilting operation of the backrest, resulting in a gap between the back and the backrest.

Republic of Korea Registered Utility Model No. 20-0401280. (November 08, 2005, registered)

An object of the present invention has been devised to solve the problems of the prior art, and it is to distribute the rotation amount of the hinge by rotating the buttocks during the tilting operation of the backrest.

In addition, another object of the present invention is to prevent the hip from moving forward during the tilting operation of the backrest.

In addition, another object of the present invention is to protrude a portion supporting the lumbar spine during the tilting operation of the backrest so that the waist is in close contact with the chair.

In order to solve the above problems, the present invention hinges the seat plate part, the buttock part, and the backrest part, respectively, and during the tilting operation of the back part, the hip part rotates downward to disperse the rotation amount of the hinge and prevent the hip from moving forward, and the lumbar spine Its basic technical feature is that the supporting part protrudes so that the waist is in close contact with the chair.

In order to solve the above problems, the present invention provides a base part to which a leg part is fixed, a seat plate part disposed on the upper part of the base part, a hip part hinged to one side of the seat plate part, and a seat plate part hinged on the upper part of the hip part A basic feature in its technical configuration is that it consists of a backrest connected to and movably coupled to the back, so that the buttocks are rotated downward when the backrest is tilted.

In order to solve the above problems, the present invention provides a base portion to which a leg portion is fixed, a seat plate portion to which the other side of a rotating bar hinged to one side of the base portion is hinged, and hinged to one side of the seat portion and one side of the base portion. It consists of a hinged hip part and a backrest part hinged on the upper part of the hip part and connected to the seat plate part to be movable, and the seat plate part is configured to rise while the hip part rotates downward during the tilting operation of the backrest part. other basic features.

According to the present invention, any one of the seat plate part and the backrest part has a slot shape, and the other one is characterized in that the interlocking pin movable along the slot shape is coupled.

According to the present invention, it further includes hinge-connecting the end of the seat plate portion and the end of the backrest portion with a connecting bar.

According to the present invention, it is characterized in that the base portion and the buttocks are hinged by a pressing member to provide an elastic force to the buttocks.

As described above, in the chair close to the waist according to an embodiment of the present invention, the seat plate part, the buttock part, and the backrest part are respectively hinged to distribute the rotation amount of the hinge by rotating the hip part during the tilting operation of the backrest part, and the backrest part This has the effect of reducing the amount of rotation of the hinge.

In addition, the chair close to the waist of the present invention has the effect of providing comfort by greatly reducing the distance between the chair and the human body by rotating the buttocks downward during the tilting operation of the backrest to prevent the buttocks from moving forward during the tilting operation of the backrest. have.

In addition, in the chair close to the waist of the present invention, the part supporting the lumbar spine protrudes during the tilting operation of the backrest so that the waist is in close contact with the chair. , has the effect of actively supporting the lumbar spine.

Figure 1 is a combined perspective view showing an embodiment of the present invention waist close-fitting chair.
Figure 2 is an exploded perspective view showing an embodiment of the chair close to the waist of the present invention.
Figure 3 is a side view showing an embodiment of the present invention waist close-fitting chair.
Figure 4 is a side view showing a state in which the backrest of an embodiment of the present inventors a chair close to the waist is tilted.
Figure 5 is a side view showing a second embodiment of the present invention waist close-fitting chair.
Figure 6 is a side view showing a state in which the backrest of the second embodiment of the present invention of the chair close to the waist is tilted.
Figure 7 is a combined perspective view showing a third embodiment of the present invention of the chair close to the waist.
Figure 8 is an exploded perspective view showing a third embodiment of the chair close to the waist of the present invention.
Figure 9 is a side view showing a third embodiment of the present invention waist close-fitting chair.
Figure 10 is a side view showing a state in which the backrest of the third embodiment of the present invention of the chair close to the waist is tilted.
11 is a side view showing a state in which the backrest is tilted according to another embodiment of the third embodiment of the chair close to the waist according to the present invention;
12 and 13 are side views showing the coupling position of the slot and the interlocking pin of the chair close to the waist according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that in the drawings, the same components or parts are denoted by the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the gist of the present invention.

1 is a combined perspective view showing an embodiment of the present inventors waist close-fitting chair, FIG. 2 is an exploded perspective view showing an embodiment of the present inventors waist close-fitting chair, and FIG. 3 is an embodiment of the present inventors waist close-fitting chair It is a side view, and Figure 4 is a side view showing a state in which the backrest of one embodiment of the chair close to the waist of the present invention is tilted. It is a side view showing a state in which the backrest of the second embodiment of the present invention is tilted, FIG. 7 is a combined perspective view showing a third embodiment of the chair close to the waist of the present invention, and FIG. 8 is an exploded perspective view showing a third embodiment of the chair close to the waist of the present invention 9 is a side view showing a third embodiment of the chair close to the waist of the present invention; It is a side view showing a state in which the backrest is tilted according to another embodiment of the third embodiment of the invention, and FIGS.

First, as shown in FIGS. 1 to 3 , looking at the configuration of the waist close-fitting chair 10 according to the present invention, it consists of a base part 100, a seat plate part 200, a hip part 300, and a backrest part 400.

When the seat plate 200, the buttocks 300, and the back 400 are hinged, respectively, the hip 300 rotates downward during the tilting operation of the back 400 to disperse the rotation amount of the hinge and prevent the hip from moving forward, and the lumbar spine The supporting part protrudes so that the waist is in close contact with the chair.

At this time, the leg part 110 is fixed to the lower part of the base part 100. The base part 100 is preferably in a shape in which both sides of the horizontal plate are bent vertically upward, but is not limited thereto.

In addition, the seat plate 200 is disposed on the upper portion of the base 100. The second connecting piece 210 coupled to the lower portion of the seat plate 200 is coupled to the upper portion of the base portion 100 . At this time, the end of the seat plate 200 is partially curved upward. Furthermore, the hip part 300 is hinged to the end of the seat plate part 200 and rotates.

Here, the buttock part 300 is bent to be curved upward while continuing in a direction corresponding to the seat plate part 200 . In addition, the backrest 400 is hinged to the upper portion of the hip portion 300, and is connected to the seat plate 200 to be movably slotted or linked. At this time, the end of the backrest 400 is bent to be curved with the seat plate 200.

That is, as shown in FIG. 4 , when the backrest 400 is tilted, the end of the back 400 moves toward the seat 200 and the butt 300 rotates downward around the first hinge 630 .

In particular, the base part 100 and the hip part 300 are hinge-connected by the pressing member 500 to provide an elastic force to the hip part 300. In addition, the first connecting piece 310 is formed in the lower portion of the butt 300, and the pressing member 500 is connected to the first connecting piece 310. The pressing member 500 is preferably a hydraulic cylinder or a compression spring.

Meanwhile, as shown in FIGS. 5 and 6 , in the second embodiment of the waist close-fitting chair 10 according to the present invention, the end of the seat plate 200 and the end of the backrest 400 may be hinged with the connecting bar 230 .

As described above, in the chair 10 that adheres to the waist according to an embodiment of the present invention, the seat plate 200, the buttocks 300, and the backrest portion 200 rotate the hip portion 300 during the tilting operation of the backrest portion 400 to distribute the rotation amount of the hinge. By hinged each 400, the amount of rotation of the hinge of the backrest is reduced.

In addition, in the chair 10 that adheres to the waist of the present invention, the hip 300 rotates downward during the tilting operation of the back 400 to prevent the hip from moving forward during the tilting operation of the back 400, thereby increasing the separation between the chair and the human body. reduced to provide comfort.

In addition, in the chair 10 in close contact with the waist of the present invention, the part supporting the lumbar spine protrudes during the tilting operation of the backrest 400 so that the waist is in close contact with the chair. A portion that supports the protrudes, actively supporting the lumbar spine.

Furthermore, as shown in FIGS. 7 to 9, in the third embodiment of the waist close-fitting chair 10 according to the present invention, the other side of the rotating bar 120 in which the seat plate 200 is hinged to one side of the base 100 is hinged.

In addition, the hip part 300 is hinged to one side of the seat plate 200, and the base part 100 is hinged to one side.

And the backrest 400 is hinged to the upper part of the hip part 300 and is coupled to the seat plate 200 to be movable.

Thus, as shown in FIG. 10 , when the backrest 400 is tilted, the end of the back 400 moves toward the seat 200 and the butt 300 rotates downward around the first hinge 630 . In addition, when the hip part 300 hinged to the base 100 rotates, the front end of the rotation bar 120 rises and the seat plate part 200 rises.

At this time, the plate-shaped second connecting piece 210 is installed at the lower portion of the seat plate 200, and the first connecting piece 310 having a shape corresponding to the butt 300 is installed in the lower portion of the buttock portion 300 to be spaced apart. At this time, the second connecting piece 210 installed on the seat plate 200 and the base part 100 are connected with the rotation bar 120 .

In addition, as shown in FIG. 11 , the second connecting piece 210 and the first connecting piece 310 may be installed to protrude only partially so as not to be spaced apart from the seat plate 200 and the buttock portion 300 .

At this time, any one of the seat plate 200 and the backrest 400 has a slot 210 shape, and the other one has an interlocking pin 220 that is movable along the slot 210 shape is coupled.

That is, as shown in FIG. 12 , a slot 210 is formed at the end of the seat plate 200 and the end of the backrest 400 is coupled to the slot 210 with an interlocking pin 220 . In addition, as shown in FIG. 13, an interlocking pin 220 is coupled to the end of the seat plate 200, and a curved slot 210 that moves by being caught by the interlocking pin 220 may be formed at the end of the backrest 400.

On the other hand, it further includes a link unit 600 consisting of a first bar 610 coupled to the seat plate portion 0200 and a second bar 620 coupled to the backrest portion 400 .

At this time, the first bar 610 is integrally coupled to the side surface of the seat plate 200 . A first hinge 630 passes through the first bar 610 and the butt 300 and is hinged.

Furthermore, the second bar 620 is integrally coupled to the side surface of the backrest 400 . The second hinge 640 passes through the second bar 620 and the butt 300 and is hinged.

Here, the coupling of the first bar 610 and the second bar 620 may be integrated in various ways such as welding, screws, pins, and fittings.

In addition, as shown in FIGS. 5 and 6 , the seat plate 200 and the backrest 400 may be integrally connected to each other without making a separate link unit 600 .

In addition, any one of the first bar 610 and the second bar 620 has a slot 210 shape, and the other one has an interlocking pin 220 that is movable along the slot 210 shape is coupled.

That is, a slot 210 is formed at the end of the first bar 610, and the end of the second bar 620 is coupled to the slot 210 with an interlocking pin 220. FIG. In addition, an interlocking pin 220 is coupled to the end of the first bar 610 and a curved slot 210 that moves while being caught by the interlocking pin 220 may be formed at the end of the second bar 620 .

That is, as shown in FIGS. 1 to 6 , when the first hinge 630 and the second hinge 640 rotate at the same time as the first hinge 630 and the second hinge 640 rotate during the tilting operation of the backrest 400, the interlocking pin 220 moves in the slot 210, Rotate downwards around 630. Alternatively, when the first hinge 630 and the second hinge 640 rotate at the same time during the tilting operation of the backrest 400, the slot 210 moves along the interlocking pin 220, the buttocks 300 rotates downward around the first hinge 630.

In particular, the arrangement of the seat plate 200, the buttocks 300, and the back 400 can be both inside and outside.

On the other hand, as shown in FIGS. 7 to 10 , when the first hinge 630 and the second hinge 640 rotate at the same time during the tilting operation of the backrest 400, the interlocking pin 220 moves through the slot 210, the hip part 300 is the first hinge Rotate downwards around 630. Alternatively, when the first hinge 630 and the second hinge 640 rotate at the same time during the tilting operation of the backrest 400, the slot 210 moves along the interlocking pin 220, the buttocks 300 rotates downward around the first hinge 630.

At this time, the buttocks 300 rotates around the first connecting piece 310 and the front end of the rotating bar 120 rises to raise the seat plate 200.

That is, since the function of supporting the lumbar vertebrae and also the tilting operation and restoration of the backrest 400 can be performed in response to the user's weight due to the rising motion of the seat plate 200, there is no need for a separate pressing member 500.

On the other hand, the seat plate portion 200, the buttock portion 300, and the backrest portion 400 form a pair and are connected by a connecting member 600.

As a result, in the chair 10 that adheres to the waist according to an embodiment of the present invention, the seat plate 200, the buttocks 300, and the back 400 are each formed such that the butt 300 rotates to distribute the rotation amount of the hinge during the tilting operation of the backrest 400. By hinged coupling, the amount of rotation of the backrest 400 hinge is reduced.

In addition, in the chair 10 that adheres to the waist of the present invention, the hip 300 rotates downward during the tilting operation of the back 400 to prevent the hip from moving forward during the tilting operation of the back 400, thereby increasing the separation between the chair and the human body. reduced to provide comfort.

In addition, in the chair 10 in close contact with the waist of the present invention, the part supporting the lumbar spine protrudes during the tilting operation of the backrest 400 so that the waist is in close contact with the chair. A portion that supports the protrudes, actively supporting the lumbar spine.

As used herein, the terms about, substantially, etc., are used in a sense at or close to the numerical value when the manufacturing and material tolerances inherent in the stated meaning are presented, and are intended to be precise or to aid in the understanding of the present invention. Absolute figures are used to prevent unreasonable exploitation of the stated disclosure by unscrupulous infringers.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

* Explanation of the symbols for the main parts of the drawing *
10: chair close to the waist
100: base part 110: leg part
120: rotation bar
200: seat plate 210: slot
220: interlocking pin 230: connecting bar
300: buttocks 400: backrest
500: pressing member

Claims (8)

The seat plate, buttocks, and backrest are each hinged together so that when the backrest is tilted, the hip rotates downward to disperse the amount of rotation of the hinge and prevent the hip from moving forward. to be adhered to, but
One of the seat plate part and the backrest part has a slot shape, and the other one has an interlocking pin movable along the slot shape.
The seat plate, buttocks, and backrest are each hinged together so that when the backrest is tilted, the hip rotates downward to disperse the amount of rotation of the hinge and prevent the hip from moving forward. to be adhered to, but
The chair close to the waist further comprising a hinge connecting the end of the seat plate and the end of the backrest with a connecting bar.
a base to which the legs are fixed; and
a seat plate portion disposed on the upper portion of the base portion;
And the buttocks hinged to one side of the seat plate,
It is hinged to the upper part of the buttock and is connected to the seat plate and consists of a backrest coupled to be movable,
The buttocks are configured to rotate downwards during the tilting operation of the backrest,
One of the seat plate part and the backrest part has a slot shape, and the other one has an interlocking pin movable along the slot shape.
a base to which the legs are fixed; and
a seat plate portion disposed on the upper portion of the base portion;
And the buttocks hinged to one side of the seat plate,
It is hinged to the upper part of the buttock and is connected to the seat plate and consists of a backrest coupled to be movable,
The buttocks are configured to rotate downwards during the tilting operation of the backrest,
The chair close to the waist further comprising a hinge connecting the end of the seat plate and the end of the backrest with a connecting bar.
a base to which the legs are fixed; and
And a seat plate portion hinged to the other side of the pivot bar hinged to one side of the base portion,
And a hip portion hinged to one side of the seat plate portion and hinged to one side of the base portion,
It is hinged to the upper part of the buttock and is connected to the seat plate and consists of a backrest coupled to be movable,
A chair that adheres to the waist, characterized in that when the backrest is tilted, the buttocks are rotated downward while the seat plate is raised.
6. The method of claim 5,
One of the seat plate part and the backrest part has a slot shape, and the other one has an interlocking pin movable along the slot shape.
6. The method of claim 5,
The chair close to the waist further comprising a hinge connecting the end of the seat plate and the end of the backrest with a connecting bar.
6. The method according to any one of claims 3 to 5,
A chair close to the waist, characterized in that by hinge-connecting the base and the buttocks with a pressing member to provide an elastic force to the buttocks.

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