KR102521635B1 - Chair Headrest with Angle and Height Adjustment - Google Patents

Abstract

The present invention relates to a headrest for a chair having an angle and height adjustment function, and more specifically, the height of the headrest can be adjusted by moving the height of the headrest up and down from the back of a chair, or the headrest can be rotated at a certain angle. The headrest can be adjusted to various set angles, such as protruding from the backrest or positioning it vertically, and the adjusted state can be physically maintained, so that users with different body sizes can sit on the chair. It relates to a headrest for a chair having an angle and height adjustment function so that the head can be comfortably leaned against the headrest.

Description

Headrest for chair having angle and height adjustment function {Chair Headrest with Angle and Height Adjustment}

The present invention relates to a headrest for a chair having an angle and height adjustment function, and more specifically, the height of the headrest can be adjusted by moving the height of the headrest up and down from the back of a chair, or the headrest can be rotated at a certain angle. The headrest can be adjusted to various set angles, such as protruding from the backrest or positioning it vertically, and the adjusted state can be physically maintained, so that users with different body sizes can sit on the chair. It relates to a headrest for a chair having an angle and height adjustment function so that the head can be comfortably leaned against the headrest.

In general, a chair includes a seat, a back board connected to one side of the seat board, and legs connected to a lower side of the seat board, and a headrest for supporting a user's head is coupled to the upper side of the back board.

The headrest is an important factor that determines the user's seating comfort. The headrest should be able to stably support the user's head, and should be able to appropriately change the position and angle of the headrest according to the user's physical condition or condition, preference, and the like.

Patent Registration No. 10-1829664 (registration date: February 7, 2018) related to the headrest for a chair as described above is a head angle adjusting device for a chair, which is provided on the back It is configured to include an installation unit, an operation unit provided in the head unit and coupled and fixed to the installation unit, a control unit coupled and fixed to the installation unit to control the operation unit, and a support unit supporting the installation unit and the operation unit. The parts are provided to correspond to each other on both sides of the upper backrest, and a pair of installation members having installation holes formed inside are provided in a tubular shape, and a binding protrusion is formed at one end of one installation member of the pair of installation members to protrude outward. And, it is characterized in that a guide groove is formed on the outer circumferential surface of the other end.

As another prior art, Patent Registration No. 10-1103560 (Registration Date: January 2, 2012) An angle-adjustable headrest device includes a first frame in which recesses and convex portions are repeatedly formed on the front side, and a plurality of the first frames A driving part having protrusions corresponding to the plurality of recessed parts of the first frame so as to be movable along the dog's recesses and convex parts; a second frame covering the driving part and fastened to the first frame; and a guide way provided on the protruding part of the second frame to be movable between the running surface formed of the concave part and the convex part; and a travel guide formed in the travel portion and inserted into the guide way to move, wherein the travel portion travels between the first and second frames.

However, most of the conventional headrest devices have a structure for adjusting only the vertical position of the headrest, and thus it is impossible to adjust the angle of the headrest with respect to the backrest and the seat.

On the other hand, there was also a headrest device having a structure capable of adjusting the angle of the headrest, but the structure was complicated, durability was weak, and the size was large. That is, there has been no headrest device having a simple and compact structure that can stably support the user's head and conveniently adjust the angle at any time.

Registered Patent Publication No. 10-1829664 (registration date: February 07, 2018) "head angle adjusting device for chairs" Registered Patent Publication No. 10-1103560 (Registration date: January 02, 2012) "Angle adjustable headrest device"

The present invention is to solve the above problems of the headrest for a chair of the prior art, and an object of the present invention is to adjust the angle of the head part by connecting a height adjustment unit installed to be able to adjust the height at the top of the backrest of the chair and connected to the height adjustment unit. The height and angle of the headrest can be easily and simply adjusted to suit the body size of the chair user through the configuration of the adjustable angle adjusting part, which is a new type of angle where the user can comfortably lean their head against the headrest while sitting in the chair. It is to provide a headrest for a chair having a height adjustment function.

Another object of the present invention is to make the configuration for adjusting the height and angle of the headrest slim, so that the user does not get stuck or uncomfortable in the process of leaning his head on the headrest, and the structure is simple and the height and angle are adjustable. Not only can cost reduction and product competitiveness improvement be expected because the operation is simple, but the angle of the head can be adjusted through a simple operation of a button, so that the operation of the headrest can be simplified, giving overall convenience of use. It is to provide a headrest for a chair having an angle and height adjustment function.

A headrest for a chair having an angle and height adjustment function according to an embodiment of the technical idea of the present invention for achieving the above object is fixed to the upper part of the backrest and has a pair of protrusions having elasticity by an elastic plate on the inside and A first bracket having a plurality of bolt fastening holes for assembling the backrest and the first bracket or assembling the first bracket and the second bracket on the edge, and a guide groove assembled to the first bracket and having an open top inside the first bracket. A bracket composed of 2 brackets, a height control plate whose lower part is fitted into the guide groove of the bracket, a plurality of locking grooves formed on one side to be in close contact with the locking protrusion, and whose upper part is exposed to the upper part of the bracket, and an angle on the upper part of the height control plate. It includes a head portion rotatably connected by the adjusting portion and having a cushion formed on one surface, wherein the angle adjusting portion is formed on the upper end of the height adjusting plate and has a pair of angular grooves inside and a circular groove at the end of each groove. A circular body formed in communication with each other, a spring accommodated in each groove, a receiving groove fitted into each groove and containing a part of the spring on one side, an annular ring on the outside, and a fitting groove into which a button is inserted on the other side are integrally formed. A member and a housing that is coupled in a form to accommodate the body and has angle adjustment grooves and guide grooves formed on both sides to communicate with each other and a head portion formed on the upper portion, and a button inserted into the guide groove and having an end coupled to the fitting groove It can be achieved by a headrest for a chair having an angle and height adjustment function, characterized in that.

The rotation of the head part is limited by the locking surface formed on the housing and the locking protrusion formed on the body.

The head part may further include a cushion attached to a surface to which the head of the user is in close contact and having elasticity including a sponge, and a finishing material made of artificial leather or cotton fabric surrounding the cushion.

It is characterized in that it further comprises a cover coupled to the outer circumferential surface of the second bracket to prevent exposure of the bolt.

In the headrest for a chair having an angle and height adjustment function according to the present invention, a height control plate is inserted into an inner guide groove in a form capable of moving up and down in a state in which a second bracket is assembled to a first bracket fixed to a backrest, and a plurality of The height of the height adjustment plate is adjusted in such a way that the locking protrusion is caught in the formed locking groove, so that the height of the head part assembled on the top of the height control plate can be easily adjusted. Since the height can be stably fixed, the height of the head can be adjusted to a height suitable for the user's body size through a simple operation of pulling or pressing the head.

Furthermore, the angle of the head part can be adjusted in various ways through the configuration of the angle adjusting part formed at the connection part of the height control plate and the head part, and the head part can be easily rotated to the angle desired by the user through the operation of pressing the buttons formed on both sides of the button. It is possible to physically fix the adjusted angle through the placing operation, so that the set angle of the head portion can be firmly maintained.

In addition, the headrest for a chair having the function of adjusting the angle and height can be simply installed to the back of the chair through a fastening means such as a bolt, so that it is universally applied to various types of backrests manufactured in various shapes and shapes. There are effects that can be used.

1 is a perspective view of a headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention;
Figure 2 is an exploded perspective view of a headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention
Figure 3 is an exploded perspective view of the adjustment means part of the headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention
Figure 4 is a schematic view showing the modified form of the coupling position of the fixing member and the angle adjustment groove for adjusting the angle of the head of the headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention
Figure 5 is a combined cross-sectional view showing the operating state of the adjusting means part of the headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention
6 is a side view of a state in which the headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention is raised.
Figure 7 is a side view of a state in which the headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention is rotated and protruded to the front side;

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

On the other hand, the meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Now, a headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention will be described in detail with reference to the drawings.

Among the accompanying drawings, FIG. 1 is a perspective view of a headrest for a chair having an angle and height adjustment function according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a headrest having an angle and height adjustment function according to a first embodiment of the present invention. An exploded perspective view of a headrest for a chair, Figure 3 is an exploded perspective view of the adjusting means part of the headrest for a chair having an angle and height adjustment function according to the first embodiment of the present invention, Figure 4 is an exploded perspective view of the first embodiment of the present invention It is a schematic diagram showing the modified form of the coupling position of the fixing member and the angle adjusting groove for adjusting the angle of the head part among the headrests for chairs having angle and height adjustment functions according to the example. FIG. 6 is a combined cross-sectional view showing the operating state of the adjusting means part of the headrest for a chair having a height adjustment function, and FIG. 7 is a side view of a state in which the headrest for a chair having an angle and height adjustment function according to the first embodiment of the present invention is rotated and protrudes forward.

The present invention relates to a headrest for a chair having an angle and height adjustment function, and more specifically, the height of the headrest can be adjusted by moving the height of the headrest up and down from the back of a chair, or the headrest can be rotated at a certain angle. The headrest can be adjusted to various set angles, such as protruding from the backrest or positioning it vertically, and the adjusted state can be physically maintained, so that users with different body sizes can sit on the chair. It relates to a headrest for a chair having an angle and height adjustment function so that the head can be comfortably leaned against the headrest.

The headrest for a chair (hereinafter referred to as a 'headrest') 100 having an angle and height adjustment function according to an embodiment of the present invention is largely a bracket 10 fixed to the upper part of the backrest (not shown) of the chair. And, a height adjustment plate 20 installed inside the bracket 10 in a vertically movable form, and an angle adjustment unit formed on the upper portion of the height adjustment plate 20 and having a head portion 40 configured in a rotatable form (30) and a head portion (40) in which a cushion (not shown) is formed on the one surface.

The bracket 10 is fixedly installed on the upper part of the chair back (not shown) and includes a pair of protrusions 12 having elasticity by an elastic plate 11 at the center and a backrest and the first bracket 13 at the edge. The first bracket 13 having a plurality of bolt fastening holes 14 for assembling or assembling the first bracket 13 and the second bracket 16 is assembled to the first bracket 13 and the inner A second bracket 16 having a guide groove 15 with an open top so that the height control plate 20 is inserted into the second bracket 16 and a cover coupled to the outside of the second bracket 16 to prevent exposure of fastening means such as bolts. It consists of (17).

The height adjusting plate 20 has a plurality of catching grooves 21 that are caught by the catching protrusions 12 are formed on one surface, and the upper part is connected in a rotatable form by the head part 40 and the angle adjusting part 30 .

In addition, the height adjusting plate 20 is accommodated in the guide groove 15 of the second bracket 16 and the angle adjusting part 30 at the top is formed in a form exposed to the top of the second bracket 16, so that the height The locking groove 21 of the control plate 20 rises or falls while overcoming the elastic force of the locking protrusion 12, so that the height of the head portion 40 formed at the top can be adjusted.

The angle adjusting unit 30 is formed at the upper end of the height adjusting plate 20 and has a pair of angular grooves 311 having a quadrangular shape inside and a circular groove 312 at the end of the angular groove 311 in communication with each other. A circular body 31 formed with a locking jaw 313 formed on the outside, a spring 32 accommodated in each groove 311, and a part of the spring 32 inserted into each groove 311 and on one side A form for accommodating the body 31 and a fixing member 33 integrally formed with an accommodation groove 331, an annular ring 332 on the outside, and a fitting groove 333 into which the button 35 is inserted on the other side. The housing 34 and the guide groove ( 342) and consists of a button 35 having an end coupled to the fitting groove 333.

That is, as shown in FIGS. 3 and 4 , in the angle adjusting unit 30, the outer surface of the fixing member 33 is caught in the angle adjusting groove 341 of the housing 34 so that the head unit 40 does not rotate. It is fixed in a preventive form, and the user presses the button 35 so that the fixing member 33 overcomes the elasticity of the spring 32 and moves inward to escape from the angle adjusting groove 341 of the housing 34, thereby causing the head portion ( 40) is transformed into a state capable of natural rotation, and when the user releases the button 35 after rotating the head part 40 to position it at a desired angle, the fixing member 33 is moved outward by the restoring force of the spring 32 It is inserted into the angle adjustment groove 341 of the housing 34 to block rotation of the head portion 40 so that the head portion 40 is firmly maintained at the set angle.

In addition, the fixing member 33 is a fixing member by fitting the housing 34 to the outside of the body 31 in a state where one side is fitted into each groove 311 and the annular ring 332 is accommodated in the circular groove 312 ( 33) is that the annular ring 332 is caught on the inner surface of the angle adjusting groove 341 of the housing 34 to physically block the fixing member 33 from falling out, and in a state where the fixing member 33 is coupled as described above One side of the button 35 is coupled to the fitting groove 333.

The head part 40 is formed by attaching a cushion (not shown) having elasticity such as a sponge to the surface to be in close contact with the user's head and finishing the surface with a finishing material 42 made of artificial leather or cotton fabric. can do.

The operation process of the headrest 100 according to the present invention configured as described above will be described in detail with reference to the drawings.

First, the headrest 100 is fixed to the backrest by attaching one surface of the first bracket 13 to the upper part of the backrest of the chair and fastening it to the bolt fastening hole 14 with a bolt (not shown). do.

In the case of adjusting the height of the headrest in the state where the headrest is installed as described above, when the user grabs the head part 40 and pulls it upward or presses it downward, the locking groove 21 formed in the height adjustment plate 20 is removed. 1 In the state of being caught by the protrusion 12 formed in the bracket 13, the protrusion 12 moves upward or downward beyond the outer surface of the protrusion 21 by the elasticity of the elastic plate 11 As the height of the height control plate 20 is varied, the height of the head portion 40 assembled on the top of the height control plate 20 is substantially transformed and the height is adjusted.

Through the configuration as described above, in a state where the height of the headrest 100 is adjusted, the headrest is rotated forward to position the headrest 100 so as to protrude toward the front of the backrest, or rotated backward to position the headrest 100 on a vertical line with the backrest. Adjust to position.

The angle adjustment of the headrest is performed by the angle adjustment unit 30 connecting the height adjustment plate 20 and the head unit 40.

That is, as shown in FIGS. 7 and 8 , when the user presses the button 35 exposed on both sides of the angle adjusting unit 30, the fixing member 33 connected to the button 35 controls the elasticity of the spring 32. By winning and moving inward, the fixing member 33 is removed from the angle adjusting groove 341 of the housing 34, so that the head part 40 is within the range of the space S between the locking jaw 313 and the locking surface 343. The upper head portion 40 protrudes forward or rotates backward to move in a vertical state with the backrest, and the angle of the head portion 40 is adjusted to fit the user's body.

In addition, when the button 35 is released in the state in which the angle of the head portion 40 is adjusted as described above, the fixing member 33 moves outward by the restoring force of the spring 32 and the angle adjustment groove of the housing 34 ( 341) to block rotation of the head portion 40 so that the head portion 40 is firmly maintained at the set angle.

As described above, in the headrest for a chair having an angle and height adjustment function according to the present invention, the height adjustment plate is inserted into the inner guide groove in a vertically movable form in a state in which the second bracket is assembled to the first bracket fixed to the backrest. In addition, the height of the height control plate is adjusted in such a way that the locking protrusion is caught in a plurality of locking grooves, so that the height of the head part assembled on the upper part of the height control plate can be easily adjusted. The height of the head can be stably fixed, and the height of the head can be adjusted to a height suitable for the user's body size through a simple operation of pulling or pressing the head, furthermore, the connection between the height control plate and the head The angle of the head can be adjusted in various ways through the configuration of the angle adjusting part formed on the part, and the head can be easily rotated to the angle desired by the user through the operation of pressing the buttons formed on both sides, and the adjusted angle can be changed through the operation of releasing the button. It can be physically fixed, so it has a feature that can firmly maintain the set angle of the head part.

In addition, the headrest for a chair having the function of adjusting the angle and height can be simply installed to the back of the chair through a fastening means such as a bolt, so that it is universally applied to various types of backrests manufactured in various shapes and shapes. There are compositional features that can be used.

As described above, the optimum embodiment has been disclosed in the drawings and specifications. Although specific terms are used herein, they are only used for the purpose of describing the present invention and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: bracket 11: elastic plate
12: stumbling block 13: first bracket
14: bolt fastening hole 15: guide groove
16: second bracket 17: cover
20: height control plate 21: locking groove
30: angle adjusting unit 31: body
32: spring 33: fixing member
34: housing 35: button
40: head part 41: cushion
42: finishing material 311: each groove
312: circular groove 313: locking jaw
331: receiving groove 332: annular ring
333: fitting groove 341: angle adjustment groove
342: guide groove 343: locking surface

Claims (5)

In the headrest assembled on the upper part of the backrest of the chair and on which the user's head is mounted,
The headrest 100 is fixed to the upper part of the backrest and has a pair of locking protrusions 12 having elasticity by an elastic plate 11 on the inside and assembling the backrest and the first bracket 13 on the edge, or The first bracket 13 having a plurality of bolt fastening holes 14 for assembling the first bracket 13 and the second bracket 16, and a guide assembled to the first bracket 13 and having an open top on the inside. A bracket 10 composed of a second bracket 16 having a groove 15 formed thereon;
The lower part is fitted into the guide groove 15 of the bracket 10, a plurality of catching grooves 21 are formed on one side to be in close contact with the catching protrusion 12, and the height control plate whose upper part is exposed to the upper part of the bracket 10 (20) and
It includes a head part 40 rotatably connected to the upper part of the height adjusting plate 20 by an angle adjusting part 30 and having a cushion formed on one side,
The angle adjusting unit 30,
A circular body 31 formed at the upper end of the height control plate 20 and having a pair of each groove 311 inside and a circular groove 312 formed at the end of each groove 311 to communicate with each other,
A spring 32 accommodated in each groove 311;
The accommodating groove 331, which is fitted into the respective groove 311 and accommodates a part of the spring 32 on one side, the annular ring 332 on the outside, and the fitting groove 333 on the other side, into which the button 35 is fitted, are integrally formed. The formed fixing member 33,
A housing 34 coupled in a form accommodating the body 31 and having angle adjusting grooves 341 and guide grooves 342 on both sides communicating with each other and having a head portion 40 formed thereon;
The headrest for a chair having an angle and height adjustment function, characterized in that it includes a button 35 fitted into the guide groove 342 and having an end coupled to the fitting groove 333.
delete According to claim 1,
The head portion 40 is angle and height adjustable, characterized in that the rotation range of the head portion 40 is limited by the locking surface 343 formed on the housing 34 and the locking jaw 313 formed on the body 31 Headrest for chairs with functions.
According to claim 1,
The head part 40 is attached to the surface to which the user's head is in close contact and further comprises a cushion having elasticity including a sponge, and a finishing material 42 made of artificial leather or cotton fabric surrounding the cushion Headrest for chairs with angle and height adjustment functions.
According to claim 1,
The headrest for a chair having an angle and height adjustment function, characterized in that it further comprises a cover (17) coupled to the outer circumferential surface of the second bracket (16) to prevent exposure of the bolt.

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