KR20230009003A - Seat board for chair - Google Patents

Abstract

Provided is a chair seat that allows a user to sit more conveniently and comfortably while keeping the spine straight correctly, and evenly distributes the load of the user throughout the entire body, including the hips and thighs of the user. To this end, the chair seat comprises: a hip part formed on the rear side of an upper surface to support the hips of the seated person; a thigh part formed on the front side of the upper surface to support the thighs of the seated person; and a spine support part formed in the middle of the rear side of the upper surface and closely supporting the tailbone of the spine of the seated person to correct the spine so that the spine of the seated person is maintained upright in the seated posture.

Description

Chair seat {SEAT BOARD FOR CHAIR}

The present disclosure relates to a chair seat used for seating.

In general, a chair is one of the important living furniture that has been closely related to our lives, and is an indispensable daily necessities for modern people's lives. Modern people use chairs in many parts of their daily lives, and the use time of chairs is also greatly increasing, so the proportion of chairs in modern people's lives is very high.

In recent years, due to the improvement of living standards, there is an increasing demand for a chair that is more comfortable and comfortable when sitting and does not harm physical health.

Accordingly, the applicant of the present invention has developed a legless chair in which a person can sit while maintaining an upright spine. Korean Registered Patent No. 10-2074770 discloses a legless chair developed by the present applicant and finally registered as a patent.

A typical sitting chair, including a sitting chair, includes a seat that supports the buttocks and thighs of a seated person. In order for a chair to function properly, it can be said that the seat is more important than anything else.

However, although the chair of the conventional structure is very effective in keeping the spine straight, there is a problem in that it does not provide comfort and comfort when seated.

An object of the present invention is to provide a seat in which a user can sit more comfortably while maintaining a straightened state of the spine.

An object of the present invention is to provide a seat capable of evenly distributing a user's load to the whole including the hips and thighs when sitting on the seat.

An object of the present invention is to provide a seat in which a user's buttocks and thighs are fixed to prevent a posture from being disturbed and to maintain a stable sitting state for a long time.

The chair of this embodiment may include a seat disposed horizontally to support the buttocks and thighs of the seated person.

The chair may further include a support frame installed under the seat to support the seat.

The chair may further include a backrest installed on the support frame to support a seated person's back.

The seat is formed between the rear part forming the front end of the seated person's buttocks, the front part forming the opposite front end of the rear part, the side part forming both front ends between the rear part and the front part, and the rear part, the front part and the side part to support the seated person. It may include an upper surface to do, and a lower surface formed on the opposite side of the upper surface.

The seat is formed on the rear side of the upper surface to support the seated person's buttocks, the front side of the upper surface is formed on the thigh portion to support the seated person's thighs, and the seat is formed on the rear side of the upper surface and supports the seated person's spine and tailbone. It may include a spine support that corrects the spine so that the spine is maintained upright in the seated person's sitting posture by closely supporting the spine.

The buttock portion is formed on both sides of the back support portion along the width direction and is curved to a predetermined depth according to the radius of curvature set on the upper surface to accommodate both buttocks of the seated person, respectively; a pair of buttock grooves; It may include an attachment extending between the buttock grooves and protruding upward from the bottom of the buttock grooves in the longitudinal direction of the seat.

The buttock part has a height of the side part along the cross section in the width direction at the bottom bottom of the buttock groove part is relatively higher than the height of the upper end of the attachment, and a curved surface in which a downward inclined surface continues from the top of the side part toward the bottom bottom point of the buttock groove part. It may be a structure formed by.

The hip groove portion may have a structure in which a curvature radius gradually decreases from the side portion to the apex along the cross section in the width direction at the bottom bottom point.

The bottom bottom of the buttock groove may have a structure formed at a distance of 83% to 86% from the side surface with respect to the distance from the side surface to the tip along the width direction.

The hip groove portion may have a height difference of 2 to 3 cm from the bottom bottom to the top of the side portion.

The thigh portion is formed on both sides in the width direction, is curved to a predetermined depth according to the radius of curvature set on the upper surface, and extends in the longitudinal direction to connect the hip groove portion and the front portion to accommodate both thighs of the seated person, respectively It may include a pair of thigh grooves, a convex portion formed between the pair of thigh grooves and curved convexly upward according to a set radius of curvature and extending in the longitudinal direction of the sheet.

The thigh portion is a curved surface in which the height of the side portion is relatively higher than the height of the upper end of the convex portion along the cross section in the width direction at the bottom bottom of the thigh groove portion, and a downwardly inclined surface continues from the top of the side portion toward the bottom bottom point of the thigh groove portion. It may be a structure formed by.

The bottom bottom of the thigh groove part may have a structure formed at a distance of 51% to 53% from the side surface part to the center of the convex part from the side surface part in the width direction.

The thigh groove portion may have a height difference of 1.5 to 2.5 cmm from a bottom bottom to an upper end of the side portion, and a height difference from a bottom bottom point to an upper end of the convex portion may be 0.5 to 1 cm.

The seat may have a structure in which a height of the bottom bottom of the hip groove is relatively higher than that of the bottom bottom of the thigh groove along the longitudinal direction.

The lumbar support portion may have an inclined surface formed at a portion that closely supports the vertebrae of the spine so as to incline backward at a predetermined angle, and may be connected by being curved in an arc shape between the inclined surface and the attachment.

As described above, according to the present embodiment, the surface of the seat is designed ergonomically, so that the user can sit more comfortably and comfortably even with the back straight and straight.

The user's thighs and thighs are in natural and overall even contact with the surface of the seat, preventing unbalanced load and preventing pain caused by local load unbalanced, so that the user can sit more comfortably for a long time.

The user's thighs and thighs are stably supported so that a sitting posture can be maintained upright for a long time without being disturbed.

1 is a schematic view showing a chair equipped with a seat according to the present embodiment.
Fig. 2 is a schematic diagram showing the structure of a sheet according to this embodiment.
3 and 4 are diagrams schematically showing the cross-sectional structure of the sheet according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereby, and the present invention is only defined by the scope of the claims to be described later. Embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible, identical or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the following examples are only preferred examples of the present invention, but the present invention is not limited to the following examples.

1 and 2 show a seat provided in a chair according to this embodiment, and FIGS. 3 and 4 show a cross-sectional structure of the seat according to this embodiment.

This embodiment is not limited to a seat provided in a chair. A chair may refer to a chair on which a seated person can sit, regardless of the presence or absence of a backrest or support frame. The seat may be applied to anything on which a seated person may sit, including a chair. For example, the seat of this embodiment can be installed and used at the bottom of the stairs of an outdoor stand.

Hereinafter, this embodiment will be described as an example of a seat applied to a chair having a backrest.

In the following description, the upper part along the y-axis of FIG. 1 is referred to as upper or upper, and the lower part is referred to as lower or lower. In addition, in FIG. 1, the x-axis direction is referred to as the longitudinal direction, the rear where the hip is located along the longitudinal direction is referred to as the rear, and the front where the thigh is located is referred to as the front. In addition, in FIG. 1, the z-axis direction is referred to as the width direction.

As shown in FIG. 1, the chair 10 includes a seat 100 arranged horizontally to support the buttocks and thighs of a seated person, and a support frame 200 installed under the seat 100 to support the seat 100. , It may include a backrest 300 installed on the support frame 200 to support the back of the seated person. The chair 10 may further include armrests 400 . The support frame 200 fixes the seat 100 and the backrest 300, and a lower end may be provided with a wheel that rolls in contact with the ground. The shape of the chair 10 may be variously modified.

The seat 100 includes a rear part 110 forming the front end of the seated person's buttocks, a front part 112 forming the opposite front end of the rear part 110, and a side part forming both front ends between the rear part 110 and the front part 112. 114, the upper surface 116 formed between the rear part 110, the front part 112, and the side part 114 to support the seated person, and the support frame 200 of the chair 10 formed on the opposite side of the upper surface 116. ) And may include a lower surface 118 coupled with.

The rear portion 110, the front portion 112, and the side portion 114 may be smoothly connected to each other.

The rear part 110 may protrude upward past the buttocks of the seated person and extend toward the waist of the seated person. The height of the top of the rear portion 110 is formed relatively higher than the height of the top of the side portion 114, and the height may be variously modified.

Accordingly, the spine support portion formed at the center of the rear portion 110 in the width direction extends upward past the seated person's tailbone, sufficiently covering the tailbone to straighten the spine. The lumbar support will be described in detail later.

The rear part 110, the front part 112, and the side part 114 are integrally formed together with the top surface 116 to form one body. The size of the sheet 100 may be variously modified. The lower surface 118 may be provided separately from the seat 100 and assembled to the lower portion of the upper surface 116 .

The seat 100 is designed to comfortably surround and support the hips and thighs in a state in which the seated person sits down, with the spine straight.

To this end, the seat 100 of this embodiment is formed on the rear part 110 of the upper surface 116 to support the buttocks of the seated person, and the front part 112 of the upper surface 116 to support the seated person. The thigh part 130, which supports the thigh, is formed in the middle of the rear part 110 side of the upper surface 116 and closely supports the spine and tailbone of the seated person to correct the spine so that the seated person's spine is maintained in a sitting posture ( 140) may be included.

Accordingly, when the seated person sits on the seat 100, the seated person's buttocks and thighs are more comfortable against the buttocks 120 and thighs 130 of the seat 100 while maintaining the spine upright by the axis support. You will be able to maintain a sitting position.

The buttock portion 120 has an ergonomic cross-sectional shape in consideration of the skeletal structure of the seated person's hip.

The buttocks 120 are formed on both sides of the back support 140 in the width direction, and are curved to a predetermined depth according to the radius of curvature set on the upper surface 116 to accommodate a pair of hips of the seated person, respectively. It may include an attachment 124 formed between the hip groove portion 122 and the pair of hip groove portions 122 and protruding upward from the bottom of the hip groove portion 122 to extend in the longitudinal direction of the seat 100.

The hip groove 122 may be formed by being recessed in the upper surface 116 of the seat 100. Two hip grooves 122 are formed symmetrically on both sides around the lumbar support 140 disposed in the middle along the width direction by making a pair.

Accordingly, the seated person can more comfortably and comfortably sit on the seat 100 while the hip is supported by the buttock groove 122 .

Attachment 124 is a connected portion that protrudes upward between the two concave buttock grooves 122. The attachment 124 extends in the longitudinal direction from the center in the width direction and can be smoothly and continuously connected to the convex part 134 of the thigh part 130 in the front and smoothly connected to the back support 140 in the back.

The hip groove portion 122 forms a continuous downward slope from the top of the side portion 114 toward the bottom low point 126 of the hip groove portion 122, and the downward slope is formed as a concavely curved surface.

The continuous downward slope may mean a slope that is inclined downward and gradually decreases in height. The curved surface may refer to a structure in which an arc-shaped curved surface is concave by being bent with a predetermined radius of curvature.

In addition, the height of the side portion 114 along the cross section in the width direction at the bottom bottom 126 of the butt groove portion 122 may be a relatively higher structure than the top height of the attachment 124.

In this embodiment, the hip groove portion 122 may have a structure in which the curvature radius gradually decreases from the side portion 114 to the attachment portion 124 along the cross section in the width direction at the bottom bottom point 126 .

That is, as shown in FIG. 3, the hip portion 120 gradually decreases in height from the top of both side portions 114 toward the center in the width direction, the radius of curvature is smoothly reduced, and the bottom of the hip groove portion 122 It has a structure in which the curvature radius rapidly decreases from the low point 126 to the apex 124.

Accordingly, the bottom bottom 126 of the concave buttock groove 122 is formed to be eccentric toward the center along the width direction, as shown in FIG. 3 . The bottom low point 126 may mean the lowest point of the hip groove 122 formed concavely.

In addition, the hip groove portion 122 has a relatively high upper end of the side portion 114 as a whole, forming a downwardly inclined shape from the side portion 114 to the bottom bottom point 126 of the hip groove portion 122 along the width direction of the seated person's buttocks. are supported so as to converge toward the center.

Therefore, the seated person can maintain a seated state more stably without the hips being forced toward the center and not moving left and right. In addition, with the back support 140 disposed at the center of the seat 100 in the width direction, it is possible to straighten the spine of the hip.

In this embodiment, the butt groove portion 122 has a length of 83% to 86% from the side portion 114 with respect to the length L from the side portion 114 to the top portion 124 of the bottom low point 126 along the width direction. It may be a structure formed at a position corresponding to (G). For example, when the distance from the side part 114 to the tip 124 is 100 cm, the bottom low point 126 may be formed at a position 83 to 86 cm long from the side part 114.

If the formation position of the bottom low point 126 is out of the above range, it is difficult for a seated person to feel comfortable when supporting the buttocks on the hip recess 122 .

In addition, the hip groove portion 122 may have a height difference (H) of 2 to 3 cm from the bottom bottom 126 to the top of the side portion 114.

By maintaining the above height difference H, the seated person's buttocks are naturally and comfortably leaned towards the center, and a comfortable and stable sitting state can be maintained. When the height difference H is out of the above range, the slope in the width direction of the hip groove 122 is too steep or flat, making it difficult for the seated person to feel comfortable and comfortable, and the effect of the lumbar support 140 may also be reduced.

The back support part 140 is formed at the center of the rear part 110 in the width direction so that the seated person can be positioned in line with the coccyx of the spine while sitting on the seat 100 . The back support part 140 protrudes from the rear part 110 and closely supports the seated person's spine and coccyx when the seated person sits on the seat 100 . In addition, the lumbar support 140 forms an inclined surface 142 formed to incline backward at a predetermined angle. The angle of the inclined surface 142 of the back support 140 may be 45 degrees to 70 degrees relative to the horizontal plane. Preferably, it may be formed at 60 degrees.

In this way, when the spine support 140 closely supports the seated person's spine and tailbone, the user sits with the back straight, and the spine is naturally straightened to perform spinal correction.

The spine support 140 may be continuously connected in an arc shape with the attachment 124 formed between the hip grooves 122 of the hip 120. Accordingly, the seated person can be supported in close contact with the tailbone of the spine by the lumbar support 140 without interference with the attachment 124 in a state where the buttocks are comfortably supported by the hip groove 122 .

The thigh portion 130 of this embodiment may include a pair of thigh groove portions 132 supporting the thighs of a seated person and a convex portion 134 formed between the thigh groove portions 132 .

Two thigh grooves 132 are formed as a pair on both sides of the upper surface 116 along the width direction. The thigh groove portion 132 is curved to a predetermined depth with a radius of curvature set along the width direction so that the seated person's thighs can be seated thereon. Then, the thigh groove portion 132 extends in the longitudinal direction to connect between the hip groove portion 122 and the front portion 112.

The thigh groove 132 may be formed by being concavely dug in the upper surface 116 of the seat 100 along the width direction. The thigh grooves 132 are formed in pairs symmetrically on both sides along the width direction.

Accordingly, the seated person can more comfortably and comfortably sit on the seat 100 while the thighs are supported by the thigh grooves 132 .

Each thigh groove 132 is smoothly connected to the front part 112 in a concave state, and is also smoothly connected to each hip groove 122 on the rear side.

The convex portion 134 is a connected portion protruding upward between the two concave thigh grooves 132 . The convex portion 134 is formed between the pair of thigh grooves 132 and is formed convexly curved upward according to the set radius of curvature and extends in the longitudinal direction of the seat 100. The convex portion 134 is also smoothly connected to the front portion 112 and continuously in a protruding state by being curved convexly upward, and is also connected smoothly and continuously to the attachment 124 on the rear side.

In this embodiment, the thigh groove portion 132 may have a structure in which the height of the side portion 114 is relatively higher than the height of the upper end of the convex portion 134 along the cross section in the width direction.

That is, the thigh groove portion 132 forms a continuous downward slope from the upper end of the side portion 114 toward the bottom low point 136 of the thigh groove portion 132, and the downward slope is formed as a concavely curved surface.

As shown in FIG. 3, the thigh portion 130 gradually decreases in height from the upper end of both side portions 114 toward the center in the width direction, passing through the bottom of the thigh groove portion 132 to the convex portion 134 again. It is a structure that gradually increases in height.

In this embodiment, the thigh groove portion 132 has a bottom bottom 136 51% to 53% from the side portion 114 with respect to the length P from the side portion 114 to the center of the convex portion 134 along the width direction. It may be a structure formed at a position corresponding to the length (Q). For example, when the length from the side part 114 to the center of the convex part is 100 cm, the bottom 136 of the thigh groove 132 is formed at a position corresponding to the length of 51 to 53 cm from the side part 114 It can be. The bottom low point 136 may mean the lowest point of the thigh groove 132 formed concavely in the width direction.

In addition, the thigh portion 130 has a height difference (T) from the bottom bottom point 136 to the top of the side portion 114 along the cross section in the width direction at the bottom bottom point 136 of the thigh groove portion 132 is the bottom bottom point 136 It may have a structure that is relatively larger than the height difference (S) from to the upper end of the convex portion 134 .

In this embodiment, the thigh groove portion 132 has a height difference (T) of 1.5 to 2.5 cm from the bottom bottom point 136 to the top of the side portion 114, and from the bottom bottom point 136 to the top of the convex portion 134. The height difference (S) may be 0.5 to 1 cm.

Accordingly, the thigh groove portion 132 has a relatively high upper end of the side portion 114 as a whole, and forms a downward slope from the side portion 114 to the bottom of the thigh groove portion 132 along the width direction, so that the seated person's thighs gather toward the center. supported to bear

Therefore, while the seated person's thighs are seated comfortably in the two concave thigh grooves, the two thighs receive force toward the center, so that the seated person can maintain a more stable seated state without moving left and right.

In addition, the thigh groove portion 132 maintains the height difference between the side portion 114 and the convex portion 134, so that the seated person's thigh naturally and comfortably leans toward the center, thereby maintaining a comfortable and stable sitting state. When the height difference is out of the above range, the widthwise inclination of the thigh groove 132 is too steep or flat, making it difficult for the seated person to feel comfortable and comfortable.

In addition, as shown in FIG. 4, the seat 100 of this embodiment may have a structure in which the floor height of the thigh groove portion 132 is relatively higher than the bottom height of the hip groove portion 122 along the longitudinal direction. there is. The bottom may mean the bottom low point 136 . The top 124 of the hip portion 120 and the convex portion 134 of the thigh portion 130 may also have a structure in which the upper end of the convex portion 134 is relatively higher than the upper end of the attachment 124 .

As such, since the position of the hip groove portion 122 is relatively lower than that of the thigh groove portion 132, the load of the buttocks of the seated person is shifted toward the rear side while sitting on the seat 100. Accordingly, the seated person's tailbone stably adheres to the lumbar support 140, and a chiropractic effect can be obtained.

In addition, the seated person is not pushed forward and the back support 140 adheres closely to the tailbone so that the seated person can stably maintain a seated state for a long time.

In addition, the seated person can maintain an upright posture while sitting on the seat of the present embodiment, so that all parts of the body can be held in place to obtain the effect of releasing muscles and tension.

Although exemplary embodiments of the present invention have been shown and described as described above, various modifications and other embodiments may be made by those skilled in the art. All of these modifications and other embodiments are to be considered and included in the appended claims, without departing from the true spirit and scope of the present invention.

10: chair 100: seat
110: rear part 112: front part
114: side part 116: top surface
118: bottom 120: buttocks
122: hip groove 124: attachment
126, 136: low point 130: thigh
132: thigh groove 134: convex part
140: spine support 142: slope
200: support frame 300: backrest

Claims (4)

In the chair seat arranged horizontally to support the buttocks and thighs of the seated person,
The seat is formed between the rear part forming the front end of the seated person's buttocks, the front part forming the opposite front end of the rear part, the side part forming both front ends between the rear part and the front part, and the rear part, the front part and the side part to support the seated person. an upper surface, a lower surface formed on the opposite side of the upper surface, a hip part formed on the rear side of the upper surface to support the buttocks of the seated person, a thigh part formed on the front side of the upper surface and supporting the thighs of the seated person, and the rear side of the upper surface. A spine support is formed in the middle and closely supports the tailbone of the seated person to correct the spine so that the seated person's spine is maintained upright in the seated posture,
The buttock portion is formed on both sides of the back support portion along the width direction and is curved to a predetermined depth according to the radius of curvature set on the upper surface to accommodate both buttocks of the seated person, respectively; a pair of buttock grooves; And an attachment formed between the buttock grooves and protruding upward from the bottom of the buttock grooves and extending in the longitudinal direction of the seat,
The buttock part along the cross section in the width direction at the bottom bottom of the buttock groove has a height relatively higher than the height of the upper end of the attachment, and forms a downward slope from the top of the side part toward the bottom bottom of the buttock groove, and the downward slope A chair seat having a structure formed of a continuously curved surface. According to claim 1,
The chair seat having a structure in which the buttock groove portion gradually decreases in curvature radius from the side portion to the apex along the cross section in the width direction at the bottom bottom point. According to claim 1 or 2,
The thigh portion is formed on both sides in the width direction, is curved to a predetermined depth according to the radius of curvature set on the upper surface, and extends in the longitudinal direction to connect the hip groove portion and the front portion to accommodate both thighs of the seated person, respectively A pair of thigh grooves, a convex portion formed between the pair of thigh grooves and curved convexly upward according to a set radius of curvature and extending in the longitudinal direction of the sheet,
The thigh portion along the cross section in the width direction at the bottom bottom of the thigh groove portion has a height relatively higher than the top height of the convex portion, forms a downward slope from the top of the side portion toward the bottom bottom of the thigh groove portion, and the downward slope A chair seat having a structure formed of a continuously curved surface. According to claim 3,
The chair seat having a structure in which the height of the bottom bottom of the hip groove is relatively higher than the bottom bottom of the thigh groove along the longitudinal direction.

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