KR101069192B1 - A chair with a vertically pivotable supporting part which can be used as a chest rest, arm rest and foot rest - Google Patents

Abstract

The present invention relates to a chair, and more particularly, to configure the body support portion attached to the front side of the chair to be rotated up and down, can support the chest and arms when standing upright vertically fixed, foot when fixed down vertically A chair is provided with a rotatable chest support usable as a support.

Description

A chair with vertically pivotable body support for use as a breastrest, armrest and footrest {A CHAIR WITH A VERTICALLY PIVOTABLE SUPPORTING PART WHICH CAN BE USED AS A CHEST REST, ARM REST AND FOOT REST}

The present invention relates to a chair, and more particularly, to configure the body support portion attached to the front side of the chair to be rotated up and down, can support the chest and arms when standing upright vertically fixed, foot when fixed down vertically A chair is provided with a rotatable chest support usable as a support.

Typically, chairs used for seating by people in homes, workplaces, restaurants, and other places are seated chairs with movable wheels or fixing legs at the bottom of the seat, and seats with seats directly in contact with the floor. It is divided into chairs with armrests, chairs without armrests, chairs with backrests and chairs without backrests.

In recent years, as shown in FIG. 1, a chair having a pedestal (hereinafter referred to as a 'breast') that can lean on the seat or chest of a seater has been proposed as a learning or office chair. As shown, a conventional chair with a breastrest is positioned on the upper front of the seatboard to support the chest or arm in a conventional chair comprising a seat plate 10, a backrest 20, and a leg 50. Breastplate 30 and the connecting rod 40 for fixing the breastplate to one side of the seat plate.

When the user is bending the upper body to view the books or documents placed on the desk when studying or working, the chair equipped with the breastrest supports the user's chest from the front side and the spine is excessively bent as the upper body is bent. It has been recently sold in popularity for its ability to prevent bending and to provide comfort by supporting the chest or arms.

By the way, in the case of a chair having a conventional breastrest as shown in Figure 1, because the breastrest is connected to one side of the seat plate by a connecting rod fixedly installed on the upper front of the seat plate, the chestrest is not necessary for studying or work at the desk In the case of simply sitting in a chair and using it for rest, the breastplate acts as an obstacle, which is inconvenient to use, and has a disadvantage in that its usability or storage is not good because of its large volume. In addition, in the case of a chair having a conventional backrest, since the backrest is configured in a fixed form, when the backrest is not necessary, the backrest acts as an obstacle, which is inconvenient to use and has poor storage.

Accordingly, it is possible to adjust the position of the breastrest according to the use of the breastrest, and the development of a chair that can be used universally for various purposes, such as transformation into a chair with and without a backrest, is required.

The present invention has been proposed to solve the problem of a chair having a conventional breastrest as described above, and can support the chest and arm when vertically fixed upright by rotating the breastplate up and down, and vertically downward When fixing, it can be used as a footrest, and additionally, the backrest is also configured to be rotatable, and an object of the present invention is to provide a general-purpose chair having various forms and uses, such as a chair with and without a backrest.

A chair according to the present invention for achieving the above object is a seat plate for supporting the buttocks of the seated person from below; A leg supporting the seat plate at a lower portion thereof; Located on the front upper side of the seat plate includes a body support for supporting the front of the user's chest or arms; The body support part is coupled to the seat plate so as to be rotatable up and down, and when the body is installed vertically, it can be used as a breastrest, and when it is installed vertically, it can be used as a footrest.

Here, the body support portion, the support plate for supporting the user's body from below;

A support rod fixed to the lower portion of the support plate to support the support plate; A mail hinge having a long hole formed therein and fixed to the lower end of the support bar and extending in a vertical direction; The lower part of the mail hinge is inserted into the front side, and protrusions are formed on both left and right sides so as to form grooves rotatable in the up and down direction, and the hinge shaft holes are formed on the protrusions so that the hinge shafts are inserted from the side, and the seat plate is located on the rear side of the protrusion. Includes a female hinge formed in the flat portion is fastened to the lower portion of the.

And, on the basis of the state in which the body support is vertically installed, the upper surface of the support plate is provided with a breast support cushion, the lower surface of the support plate is preferably provided with a foot support plate.

Here, the support bar, the first tube body formed with a plurality of through holes at regular intervals in the vertical direction on one side outer peripheral surface; A second tube body inserted into the first tube body from below and having a through hole formed in an outer peripheral surface of the upper side; A fixing bolt inserted into a specific through hole of the first pipe and a through hole of the second pipe to fix the first pipe and the second pipe to each other; It is preferable that the height of the support plate can be adjusted by sliding the second pipe body while sandwiching the first pipe body.

In addition, the seat plate is provided with a back support for supporting the seat of the seater to be rotatable, the seat plate is formed to be bent in the 'b' shape, the left and right sides of the vertical portion is formed with a projecting piece protruding toward the front of the hinge shaft hole is formed , The horizontal portion is coupled to the seat plate hinge bracket fixed to the lower rear side of the seat plate; The upper back is fixed to the lower back of the back of the backrest on the basis of the state of standing the back vertically, the lower left and right both sides are provided with a backrest hinge bracket protruding toward the front side formed with a hinge shaft hole; Hinge shafts are penetrated and coupled to the hinge shaft holes of the protruding pieces of the seat bracket bracket and the backrest hinge bracket, and the backrest is pivotally pivoted about the seat shaft to be used as a chair without a backrest and a backrest. .

According to the present invention as described above, the body support can be configured to rotate up and down to support the chest and arms when upright fixed upright, can be used as a footrest when fixed down vertically, additionally the backrest can also be rotated It has the advantage that it can be used in various forms and uses, such as a chair with and without a backrest.

1 is a perspective view of a conventional chair having a breast;
2 is a perspective view of a chair according to the present invention;
3 is an exploded perspective view of a chair according to the present invention;
Figure 4 is a view showing the hinge coupling structure of the seat and backrest of the chair according to the present invention,
5 is a side cross-sectional view of a chair according to the present invention;
6 is a state diagram of the rotational operation of the breastrest of the chair according to the present invention.

Hereinafter, with reference to the accompanying drawings and preferred embodiments will be described in detail the specific configuration and operation relationship of the chair provided with a rotatable body support according to the present invention.

2 to 5, the chair according to the present invention includes a seat plate 100, a backrest 200, a body support part 300, and a leg 400.

The seat plate 100 is a part where the seated person actually sits, but is shown in the drawing is a circle, but may be made in a variety of shapes, such as triangular, square, seat plate 110, seat cushion 130 and the seat hinge It is preferable to include the bracket (120).

The seat plate 110 is a plate-shaped member that supports the seat of the seater from below, and any material that can support the seat of the seat is not limited, and may be formed of various materials such as wood, metal, and synthetic resin.

The seat plate cushion 130 is provided so that the seated person feels fluffy when sitting on the seat plate 100, may be attached to the upper surface of the seat plate 110 directly touching the seat of the seat occupant, it is configured in the form of a shell It may also be configured to wind the entire stand (110). In the present invention, the seat plate cushion 130 is preferably configured in the latter form. That is, the seat plate cushion 130 may be configured to cover the entire seat plate stand 110 is formed of the outer shell shape of a material having elasticity itself, it is composed of a general fabric outer shell form the whole seat stand 110 It may be wrapped to be configured to incorporate a cushioning agent therein.

The seat plate hinge bracket 120 is a means for foldably hinge-backing the backrest 200 to be described later on the seat plate 100, as shown in FIG. Protruding pieces 120a having hinge shaft holes 120b formed on both sides are formed to protrude forward, and the horizontal portion is fastened and fixed to the lower rear side of the seat plate 110 by bolts or the like.

3 is an exploded view of the seat 110 is wrapped in the seat cushion 130, Figure 4 is a perspective view of the seat 110 is omitted left cushion. As can be seen from FIGS. 3 and 4, the seat plate 110 is completely enclosed by the seat plate cushion 130, and the horizontal and vertical portions of the aesthetic view of the seat plate hinge bracket 120 are also mounted on the seat plate cushion 130. Is wrapped by. However, for hinge coupling with the backrest 200 to be described later, as shown in FIG. 3, only the protruding piece 120a formed in the vertical portion of the seat plate hinge bracket 120 is configured to be exposed to the outside of the seat plate cushion 130. . Such a configuration is intended to prevent the maximum exposure of the seat plate hinge bracket 120, and in actual operation, the seat plate hinge bracket 120 may be exposed or not exposed, and in addition to such a structure, various structural modifications may be possible. will be.

The backrest 200 is a part that assists the seated person to sit in a comfortable posture while leaning on the seat plate 100. As mentioned above, the backrest 200 is configured to be rotatable on the rear side of the seat plate 100. desirable. The backrest 200 includes a backrest 210, a backrest cushion 230, and a backrest bracket 220 similarly to the seat plate 100. Here, since the backrest 210 and the backrest cushion 230 have the same structure as the seatplate 110 and the seatplate cushion 130, further description thereof will be omitted.

On the other hand, the backrest bracket 220 is a means for rotatably coupling the backrest 200 to the seat plate 100, coupled to the seat plate hinge bracket 120 and the hinge shaft 150 of the seat plate 100. do. As shown in FIG. 4, the backrest bracket 220 is fastened and fastened by bolts and the like to the bottom of the back of the backrest 210 based on a state in which the backrest 200 is placed vertically, and hinges on both sides of the lower left and right. The protrusion piece 220a in which the shaft hole 220b is formed is protruded toward the front side. In addition, the gap between the left and right both sides of the protrusion pieces 220a is formed larger than the left and right both sides of the hinge bracket 120, the gap between the protrusions 120a of the left plate hinge bracket 120. It is preferably configured to. In this state, the hinge shaft 150 penetrates through the hinge shaft holes 120b and 220b formed in the protruding pieces 120a and 220a of the seat plate hinge bracket 120 and the backrest hinge bracket 220.

According to this configuration, as shown in FIG. 5, the backrest 200 is pivotally folded about the seat plate 100 with respect to the hinge axis 150, so that the backrest chair a and the backrest chair b are not. It can be used as.

Meanwhile, when the backrest 210 is erected vertically, the backrest 200 withstands the seat occupant's load as the lower end of the backrest bracket bracket 220 is supported by the back of the vertical portion of the seat plate hinge bracket 120. No longer fall, as shown in FIG. 4, the lower end of the backrest bracket 220 may be bent at an angle to configure the angle between the seat plate 100 and the backrest 200 to form an obtuse angle.

Body support is located on the front upper side of the seat plate 100 to support the front of the user's chest or lean on both arms or arms to prevent the upper body from excessively bent to the front side when the user is studying or working at the desk As shown in (a) of FIG. 2, the upper case can be used as a breastplate when installed vertically, and the vertical case is installed vertically as shown in FIG. Can be used as a footrest.

As such, the body support of the chair according to the present invention is configured to be rotatable up and down, and can be used as both the support and the footrest, and to realize such a function, the support plate 310, the supporter cushion 320, Footrest plate 330, the support rod 340, the mail hinge 350, the female hinge 360 and the mounting piece 380.

The support plate 310 is a plate-like member that is directly in contact with the body including the user's chest or arms or feet to support from below, so as to support the front of the chest and place both arms or feet, as shown in FIG. In general, it is preferable to form a long extension in the horizontal direction, and the material may be various materials such as wood, plastic, metal, and the like as long as the material can withstand the load.

One side of the body support portion, more specifically, based on a state in which the body support portion is installed vertically upward, the upper surface of the support plate 310 is provided with a breast support cushion (320). The breast support cushion 320 is to give a comfort by giving a cushion when the body support part touches the user's chest or arm, it may be made of a variety of materials having a cushioning feeling, such as urethane, silicone, foam foam, elastic rubber, It may be bonded to the support plate 310 or fixedly installed with fasteners such as bolts, or may be configured to surround the support plate 310 by being formed in an outer shell shape.

On the other side of the body support, more specifically, based on a state in which the body support is installed vertically upward, the bottom plate of the support plate 310 that is not provided with the support cushion 320 is provided with a foot support plate 330. The footrest plate 330 is a part that can be supported by the user to put the foot when fixed to rotate the body support vertically downwards is composed of plastic injection molding is fixed to the support plate 310 by fasteners such as bolts On the surface, it is preferable that a plurality of acupressure protrusions 332 for acupressure are formed.

The body support is vertically supported by the support rod 340. That is, one end of the support rod 340 is fixedly coupled to the lower portion of the body support (ie, the footrest plate 330) and the other end is rotatably coupled to the seat plate 100. In addition, the support rod 340 is preferably configured to adjust the height according to the user's sitting height.

As such, the height of the support rod 340, the support rod 340 is composed of a first tube 341, the second tube 342, the closing cap 343, a fixing bolt 344, the end portion The mail hinge 350, the female hinge 360, and the mounting piece 380 are rotatably mounted on the seat plate 100.

The first tube 341 is a lower portion of the body support, that is, a tubular body having a circular cross section which is fixedly coupled to the footrest plate 330 and extends downwardly and vertically, and has an upper end of the body support portion, that is, a footrest plate ( 330) a horizontal fixing piece 341a is formed in contact with and fixed to the center, and fixing holes 341b are drilled on left and right sides of the fixing piece 341a to be fixedly coupled to the footrest plate 330 by bolts. . Here, the bolt is preferably fastened and fixed to the inner support plate 310 after passing through the fixing hole 341b and the foot support plate 330 of the fixing piece 341a. And, it is preferable that a seating groove is formed in the center of the foot plate so that the fixing piece 341a can be seated. In addition, a plurality of through holes 341c are formed on one side outer circumferential surface of the first tube 341 at regular intervals in the vertical direction in order to adjust the height.

The second tubular body 342 is a tubular body fitted from below to the first tubular 341, and is inserted to surround the first tubular 341 from the outside, and a through hole (not shown) is formed on an outer peripheral surface of the upper one side. The nut 342a is welded to the through hole. The fixing of the first tubular 341 and the second tubular 342 is a fixing bolt in a state in which the nut 342a of the second tubular 342 is aligned with the position of the through hole 341c of the first tubular 341. 344) is carried out by tightening from the outside, the second tube 342 is inserted into the first tube 341 by sliding the second tube 342 in the through hole (341c) corresponding to the height after the height adjustment. After positioning the nut 342a of the fixing bolt 344 can be fixed by adjusting the height of the body support.

A closing cap 343 is fitted between the first pipe 341 and the second pipe 342 so as not to expose the connection portion and the nut 342a of the first pipe 341 and the second pipe 342 to the outside. It is desirable to lose. The closing cap 343 is composed of a tubular body that is vertically penetrated so that the first tubular 341 and the second tubular 342 are fitted in the vertical direction, and one side thereof may cover the nut 342a of the second tubular body 342. A nut 342a accommodating space is formed, and a hole for inserting the fixing bolt 344 is preferably drilled into the nut 342a accommodating space.

On the other hand, as mentioned above, the support rod 340 is coupled to the seat plate 100 to be rotated up and down. To this end, between the lower end of the support bar 340 and the seat plate 100 is hinged by the mail hinge 350 and the female hinge 360, the female hinge 360 by the mounting piece 380 It is mounted to the bottom of the seat plate 100.

The mail hinge 350 is formed in a rod shape, the upper portion is fixed to the lower end of the support rod 340, more specifically, the lower end of the second pipe 342 and then fixed by rivets, the vertical direction on the side The long hole 352 is formed to extend through the through. In addition, the female hinge 360 has protrusions 362 formed on both left and right sides thereof so that a lower portion of the mail hinge 350 is inserted into the front side to be rotatable in the vertical direction, and the protrusions 362 have side surfaces. The hinge shaft hole 362a is formed so that the hinge shaft 370 is inserted from the hinge shaft 370. In addition, a flat part 363 is formed at the rear side of the protrusion 362 of the female hinge 360, and is fixed to the lower part of the seat plate 100 by a bolt. At this time, the mounting piece 380 may be further provided to mediate the coupling between the seat plate 110 of the seat plate 100 and the flat portion 363 of the female hinge 360, the mounting piece 380 is bolted to the seat plate 110 and bolted to the flat portion 363.

In this way, as the support rod 340 for supporting the body support is hinged to the seat plate 100, the body support is installed vertically upward and may be used as a chest or armrest, and after rotating downward to fix the foot vertically Can also be used as a stand. The pivoting operation and fixing method of the body support will be described later.

On the other hand, the leg 400 is coupled to the lower portion of the seat plate 100. The leg 400 is typically composed of five to six legs 400, it is preferable that the wheel 410 for the cloud is provided below the end of each leg (400). In addition, the center portion of the leg 400 is provided with a vertical support rod 420 vertically, the central support rod 420 is coupled to the upper end to the locking member 430 is fastened and fixed to the lower center of the seat plate 100 seat plate Connected with 100. The combination of the seat plate 100 and the leg 400 is conventional, and further detailed description thereof will be omitted.

6 is a view illustrating a body support rotational operation state of the chair according to the present invention. First, as shown in (a) of FIG. 6, when the support rod 340 is pressurized downward in a vertically upright state for use of the breast support, the lower portion of the mail hinge 350 at the bottom of the support rod 340 is a female hinge. The projection 362 of 360 is moved downward from the central groove and fixed in an interference fit manner. As such, when the lower portion of the supporting rod 340, that is, the mail hinge 350 is fitted, the hinge shaft 370 has a relative position adjusted upward in the long hole 352, so that the upper outer circumferential surface of the hinge shaft 370 is increased. The upper inner surface of the long hole 352 is in contact.

In this way, the lower mail hinge 350 of the support bar 340 is pressed into the groove of the female hinge 360, the frictional force between the mail hinge 350 and the inner surface of the groove of the female hinge 360 By the support rod 340 is fixed so as not to rotate again to the outside, the user can support the chest or arm.

On the other hand, when the user does not use the breastrest, the support rod 340 is rotated downward in the reverse order as described above. That is, as shown in (b) of FIG. 6, first holding the body support and then lifted upward to release the interference fit to make the mail hinge 350 of the lower support rod 340 to the rotatable state to the outside Rotate downward to fold. As such, when the body support is folded downward, the footrest plate 330 is reversed to face upward, and the user can put both feet on the footrest plate 330 in a seated state on the seat plate 100.

When the user wants to use the breastrest, the support rod 340 is rotated upward again in the reverse order and fixed.

As described above, according to the present invention, a chair such as a chair with a backrest and a chair without a backrest, a chair with a chestrest or a chair with a footrest can be transformed and used in various forms.

So far, the chair according to the present invention has been described with reference to the accompanying drawings and preferred embodiments, and the present invention is not limited to the above description, and various modifications are made by those skilled in the art within the scope of the spirit of the appended claims. Modifications and variations are possible and such modifications and variations should also be construed as falling within the protection scope of the present invention.

100: seat 110: seat stand
130: seat cushion 120: seat hinge bracket
120a: protrusion piece 120b: hinge shaft hole
150: hinge axis 200: backrest
210: backrest 220: backrest bracket
220a: protrusion piece 220b: hinge shaft hole
230: back cushion 300: body support
310: support plate 320: breast support cushion
330: footrest plate 332: acupressure protrusions
340: support rod 341: first tube
341a: fixing piece 341b: fixing hole
341c: through hole 342: second tube
342a: Nut 343: Closing Cap
344: fixing bolt 350: mail hinge
352: long 360: female hinge
362: protrusion 362a: hinge shaft hole
363: flat portion 370: hinge axis
380: Mounting Piece 400: Leg
410: wheel 420: center support rod
430: locking member

Claims (6)

A seat plate supporting the buttocks of the seated person from below;
A leg supporting the seat plate at a lower portion thereof; And
And a body support part positioned on the front upper side of the seat plate to support the front or arm of the user's chest.
The body support is coupled to the seat plate so as to be rotatable up and down, and can be used as a support when it is installed vertically upwards, and is disposed extending in a horizontal direction so that it can be used as a footrest when installed vertically downwards,
The body support portion and the support plate for supporting the body of the user from below; A support rod fixed to the lower portion of the support plate to support the support plate; A mail hinge having a long hole formed therein and fixed to the lower end of the support bar and extending in a vertical direction; The lower part of the mail hinge is inserted into the front side, and protrusions are formed on both left and right sides so as to form grooves rotatable in the up and down direction, and the hinge shaft holes are formed on the protrusions so that the hinge shafts are inserted from the side, and the seat plate is located on the rear side of the protrusion. Includes a female hinge formed in the flat portion is fastened to the bottom of the,
Based on the state in which the body support is installed vertically upward, the upper surface of the support plate is provided with a breast support cushion, the lower surface of the support plate is characterized in that the chair is provided with a foot support plate. delete delete The method of claim 1,
The support rod,
A first tube body having a plurality of through-holes formed at regular intervals in a vertical direction on one side outer circumferential surface thereof;
A second tube body inserted into the first tube body from below and having a through hole formed in an outer peripheral surface of the upper side;
A fixing bolt inserted into a specific through hole of the first pipe and a through hole of the second pipe to fix the first pipe and the second pipe to each other;
A chair characterized in that the height of the support plate can be adjusted by sliding the second tube while the first tube is inserted. The method of claim 1,
Chair is characterized in that the seat plate is provided with a backrest for supporting the seat of the seater to be rotatable. The method of claim 5, wherein
The seat plate is formed to be bent in a 'b' shape, the left and right sides of the vertical portion of the hinge shaft hole is formed protruding protruding toward the front, the horizontal portion is coupled to the seat plate hinge bracket fixed to the lower rear side of the seat plate;
The upper back is fixed to the lower back of the back of the backrest on the basis of the state of standing the back vertically, the lower left and right both sides are provided with a backrest hinge bracket protruding toward the front side formed with a hinge shaft hole;
Each hinge shaft hole of the seat hinge bracket and the back bracket hinge bracket is penetrated and coupled to each other, and the backrest is pivotally pivoted about the seat shaft to be used as a chair with a backrest and a chair without a backrest. Chair.

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