JP2015066038A - Legless chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a legless chair capable of being easily moved in the state of being folded via a connection part between a seat part and a backrest part.SOLUTION: A legless chair comprises a seat part 10 and a backrest part 20. The legless chair can be brought into the state of being folded via a first connection part 101 in which an end of the seat part 10 and an end of the backrest part 20 are connected together. The legless chair comprises a first wheel 40 that is provided at a tip part 31 of a foot placing part 30 positioned on the opposite side of the first connection part 101.

Description

  The present invention relates to a seat chair.

  Patent document 1 is disclosing the chair incorporating the conventional massage treatment apparatus. This chair includes a seat, a backrest, a moving wheel, and a jack air bag. The backrest portion is connected to the rear end portion of the seat portion, and is inclined obliquely upward and rearward. The moving wheel is provided on a protruding portion protruding rearward from the lower end of the seat portion. The jack air bag is attached to the front side of the lower surface of the seat. When the chair is moved, the jack air bag is first inflated. Since the jack air bag expands below the seat, the chair tilts backward with the moving wheel as a fulcrum. At this time, it is not necessary to draw the backrest portion backward. Then, the chair is further tilted backward by placing a hand on the backrest and the chair is moved. At this time, since the chair is tilted backward by the jack air bag, a large operating force is not required. Further, only the moving wheel supports the chair with respect to the floor surface, and the moving wheel rotates and the chair can be easily moved.

JP 2006-34448 A

  However, the chair of Patent Document 1 is moved in a state where the backrest portion is inclined and fixed from the rear end portion of the seat portion obliquely upward and rearward. In other words, the chair is moved by placing the hand on the backrest and tilting the chair backward. For this reason, if the backrest part is bent at the connecting part between the end part of the backrest part and the end part of the seat part and the backrest part is inclined upward or the backrest part is stacked on the seat part, this chair is used. There is no part to put in hand when trying to tilt backward or move, and it will be done with an unreasonable posture, and that requires a lot of power.

  The present invention has been made in view of the above-described conventional situation, and should solve the problem of providing a seat chair that can be easily moved in a state of being bent at the connecting portion between the seat portion and the backrest portion. It is an issue.

The seat chair of the present invention includes a seat portion and a backrest portion, and can be bent at a first connecting portion connecting the end portion of the seat portion and the end portion of the backrest portion. A chair,
It is characterized by comprising a moving rotator provided at the front end portion on the seat portion side located on the opposite side to the first connecting portion.

  The seat chair lifts the first connecting portion side in a state in which the first connecting portion is bent (a state where the backrest portion is inclined to the upper side of the seat portion or the backrest portion is overlapped with the seat portion). Then, the seat chair is in a state in which only the moving rotary body provided at the front end portion on the seat side is supported with respect to the floor surface. For this reason, if it is going to move a seat chair in this state, the rotary body for a movement will rotate and it can be moved easily.

  Therefore, the seat chair of the present invention can be easily moved in a state where it is bent at the connecting portion between the seat portion and the backrest portion.

It is a perspective view which shows the state seated on the seat chair of Example 1. FIG. It is a seat chair of Example 1, Comprising: It is a top view which shows the state by which the seat part, the backrest part, and the footrest part were arrange | positioned on the same surface. It is a seat chair of Example 1, Comprising: It is a bottom view which shows the state by which the seat part, the backrest part, and the footrest part were arrange | positioned on the same surface. It is a seat chair of Example 1, Comprising: It is sectional drawing which shows the seating state by which the seat part and the footrest part were arrange | positioned on the same surface. It is sectional drawing which is a seat chair of Example 1, Comprising: The 2nd connection part is the seating state which bent. It is the schematic which shows the movement state of the seat chair of Example 1. FIG. It is the schematic which shows the movement state of the seat chair of Example 2. FIG.

  A preferred embodiment of the present invention will be described.

  The seat chair of the present invention may include a handle provided on the first connecting portion side. In this case, it is possible to easily lift the first connecting portion side by gripping the handle with respect to the seat chair folded in the first connecting portion. In addition, the chair can be easily moved while holding the handle.

  When the seat is placed on the floor, the handle can abut against the floor behind the seat. In this case, when the seat is placed on the floor and the backrest is deployed at an arbitrary angle with respect to the seat (when the seat can be seated on a seat), a backward force is applied to the backrest. Even if the handle is in contact with the floor surface behind the seat portion, the seat chair can be prevented from falling backward.

  The seat chair of the present invention is connected to an end portion of the seat portion located on the opposite side of the first connecting portion, and a footrest portion provided with the moving rotating body at a distal end portion, and the seat portion. An elevating device that raises the second connecting portion side so that the seat portion and the footrest portion ascend and incline toward the second connecting portion that connects the footrest portion. In this case, when the lifting device raises the second connecting portion and the second connecting portion bends, the moving rotating body provided at the tip of the footrest rotates to smoothly move the tip of the footrest. Can be pulled backwards. For this reason, this seat can raise the 2nd connection part smoothly and bend it. The moving rotator is not only utilized when the seat chair erected as described above is moved, but also has an effect of smoothly pulling the footrest portion when the second connecting portion is bent.

  The seat chair of the present invention may incorporate a massage treatment device. Although the weight of the sitting chair increases by incorporating the massage treatment device, the moving rotating body supports the sitting chair with respect to the floor surface in a state of being bent at the first connecting portion. A rotating body rotates and a seat can be moved easily.

  The footrest part may incorporate a functional part of the massage device. In this case, the function part (for example, a compressor, a power supply device etc.) of the massage treatment apparatus which is a heavy article is accommodated in a footrest part. For this reason, when moving a seat chair in the state bent by the 1st connection part, a heavy article is located below and can be moved stably. Moreover, since the 1st connection part side can be made light at this time, the 1st connection part side can be lifted easily.

  Next, Embodiments 1 and 2 embodying the seat of the present invention will be described with reference to the drawings.

<Example 1>
As shown in FIGS. 1 to 5, the seat chair according to the first embodiment includes a seat portion 10, a backrest portion 20, a footrest portion 30, a first wheel 40 that is a moving rotating body, a handle 50, and a lifting device. 60. The seat chair incorporates a massage treatment device 70 in the seat portion 10, the backrest portion 20, and the footrest portion 30. Moreover, the seat part 10, the backrest part 20, and the footrest part 30 have cushioning properties. In addition, the seat is covered with a skin material.

  The seat part 10 has a predetermined thickness, and when viewed from above in a state of being placed on the floor surface F, the seat part 10 has a substantially rectangular shape. One end portion of the seat portion 10 and one end portion of the backrest portion 20 are connected to each other to form a first connecting portion 101. Further, the other end portion of the seat portion 10 on the opposite side of the first connecting portion 101 and one end portion of the footrest portion 30 are connected to constitute a second connecting portion 102.

  The backrest 20 has the same thickness as the seat 10 and has the same left-right width. The backrest part 20 forms the edge part of the edge part which comprises the 1st connection part 101 in linear form. The backrest part 20 forms a tip part 21 located on the opposite side of the first connecting part 101 in a circular arc shape with left and right central parts protruding. The backrest portion 20 has one end of a belt-like connecting band 22 attached in the vicinity of the front end portion 21 on the back surface (the surface on the opposite side of the backrest surface against which the back of the seated person seated on the sitting chair abuts). Yes. The connecting band 22 has a pillow member 23 attached to the other end. The pillow member 23 can be disposed on the backrest surface side with the connecting band 22 getting over the distal end portion 21 of the backrest portion 20. The pillow member 23 arranged at this position is in contact with the back of the seated person sitting on the seat. The pillow member 23 has a cushioning property.

  As shown in FIG. 4, the seat portion 10 and the backrest portion 20 are connected by a connecting fitting 12 that can adjust the angle. For this reason, this backrest part 20 expand | deploys the backrest part 20 at a desired angle with respect to the seat part 10, and a seated person can sit down. Moreover, this seat chair can be made into the state bent in the 1st connection part 101 (The state in which the backrest part 20 was inclined above the seat part 10, or the backrest part 20 was piled up on the seat part 10). .

  As shown in FIGS. 1 to 5, the footrest portion 30 has the same thickness as the seat portion 10 and the same left-right width. The footrest 30 has a substantially square shape when viewed from above with the footrest 30 placed on the floor F. The footrest portion 30 is formed with a straight edge at the end of the second connecting portion 102. In the footrest portion 30, the left and right corners of the tip portion 31 located on the opposite side of the second connecting portion 102 are formed in an arc shape in plan view.

  As shown in FIG. 4, the seat portion 10 and the footrest portion 30 are in a state where the seat portion 10 and the footrest portion 30 are placed on the floor surface F (the seat chair is placed on the floor surface F so that it can be seated. The second connecting portion 102 is connected by a connecting fitting 13 that can be bent in the direction in which the second connecting portion 102 rises from the placed state. For this reason, the raising / lowering apparatus 60 mentioned later raises the 2nd connection part 102, and can be made into the state which the seat part 10 and the footrest part 30 went up and inclined toward the 2nd connection part 102. FIG.

  One first wheel 40 is attached to each of the distal end portion 31 of the footrest portion 30 at two locations separated in the left-right direction. That is, the 1st wheel 40 is attached to the front-end | tip part by the side of the seat part 10 located in the opposite side to the 1st connection part 101. FIG. More specifically, each first wheel 40 is rotatably attached to a shaft member 41 that extends in parallel to the distal end portion 31 of the footrest portion 30. Moreover, each 1st wheel 40 is located in the floor surface F side of a front-end | tip part in the state which put the footrest part 30 on the floor surface F, and an outer peripheral surface is forward and downward in the corner | angular part by the floor surface F side. Exposed. In addition, each first wheel 40 is positioned behind the front edge of the footrest portion 30 in a plan view as viewed from above with the footrest portion 30 placed on the floor surface F as shown in FIG. And cannot be visually observed. For this reason, this seat chair can prevent the seated person's foot from hitting the first wheel 40 and can give a clean aesthetic appearance.

  As shown in FIGS. 1 and 3 to 5, the handle 50 extends rearward from the end portion of the seat portion 10 to which the backrest portion 20 is connected. The handle 50 includes a pipe member 51 covered with a skin material. The pipe member 51 includes a grip portion 51A that extends linearly, and a left and right connecting portion 51B that is bent while being curved at both ends of the grip portion 51A and extends in the same direction. The left and right connecting portions 51B of the pipe member 51 are the end portions of the seat portion 10 on the first connecting portion 101 side, and are close to the back surface that comes into contact with the floor surface F when the seat portion 10 is placed on the floor surface F. Is inserted into the seat 10 and fixed. The skin material covering the pipe member 51 extends rearward from the entire edge of the seat portion 10 on the first connecting portion 101 side to cover the pipe member 51, and is provided at the left and right central portions of the gripping portion 51 </ b> A of the pipe member 51. An opening 52 through which a finger can pass when gripping the grip 51A of the pipe member 51 is provided in the vicinity.

  As shown in FIG. 4, when the handle 50 is placed on the floor surface F, the lower surface on which the pipe member 51 is located is in contact with the floor surface F with the skin material interposed therebetween. For this reason, in a state where the seat portion 10 is placed on the floor F and the backrest portion 20 is deployed at an arbitrary angle with respect to the seat portion 10 (a state where the seat chair can be seated), the backrest portion 20 Even if a force in the direction is applied, the handle 50 is in contact with the floor surface F behind the seat portion 10, so that the seat chair can be prevented from falling backward.

  As shown in FIGS. 3 to 5, the lifting device 60 is housed in a recess 11 that is open on the back surface of the seat 10. The elevating device 60 has two rod-like members 15 that extend in parallel in the front-rear direction and have the second wheel 14 attached to the tip. These rod-shaped members 15 are pivotally supported at the rear side in the recess 11 at the end opposite to the tip end to which the second wheel 14 is attached. These rod-shaped members 15 are driven by a motor (not shown) so that the whole is housed in the recess 11 (see FIG. 4), and the second wheel 14 is rotated around the pivotally supported end. The attached tip portion side is displaced between the state where the tip portion side protrudes from the back surface of the seat portion 10 (see FIG. 5). Therefore, with the seat 10 and the footrest 30 placed on the floor F, the motor is driven so that the tip of the rod-like member 15 to which the second wheel 14 is attached protrudes from the back of the seat 10. Then, the 2nd connection part 102 raises and it will be in the state which the seat part 10 and the footrest part 30 went up and inclined toward the 2nd connection part 102. FIG. At this time, the second wheel 14 is rotated, and the entire seat portion 10 can be smoothly inclined so as to be inclined upward toward the second connecting portion 102 with the grip portion 51A of the handle 50 as a fulcrum. Moreover, the 1st wheel 40 provided in the front-end | tip part of the footrest part 30 rotates, and the front-end | tip part of the footrest part 30 can be drawn near back smoothly. For this reason, this seat raises the 2nd connection part 102 smoothly, and bends the 2nd connection part 102 so that the seat part 10 and the footrest part 30 may rise and incline toward the 2nd connection part 102. Can do.

  As shown in FIGS. 1 and 2, the massage treatment device 70 includes first to seventh airbags 71 to 77, first and second heaters 78 and 79, a compressor 80, and a power supply device 90. ing. The first airbag 71 is attached along the left and right edges of the seat surface of the seat portion 10 (the surface on which the buttocks and thighs of the seated person seated on the seat chair abut). Each of the left and right first airbags 71 is composed of three bags. When the first airbag 71 repeats expansion and contraction, the buttocks and thighs of the seated person can be sandwiched and tightened from the left and right. The second airbag 72 is stored side by side on the seat surface side in the seat portion 10. When the second airbag 72 is repeatedly expanded and contracted, the seating surface of the portion in which the second airbag 72 is accommodated is deformed, and the seated person's buttocks and thighs can be pressed.

  The third airbag 73 extends along the left and right edges of the backrest surface of the backrest 20 and is attached at a height at which the shoulder of the seated person is located. Each of the left and right third airbags 73 is composed of three bags. By repeating the expansion and contraction of the third airbag 73, the shoulder of the seated person can be clamped from the left and right. The fourth airbag 74 is stored on the backrest side in the backrest portion 20 side by side at a height at which the shoulder of the seated person is located. When the fourth airbag 74 is repeatedly expanded and contracted, the backrest surface of the portion in which the fourth airbag 74 is accommodated is deformed and the shoulder of the seated person can be pressed. The fifth airbag 75 is on the backrest side in the backrest 20 and is stored side by side at a height at which the waist of the seated person is located. By repeating the expansion and contraction of the fifth airbag 75, the backrest surface of the portion in which the fifth airbag 75 is accommodated is deformed, and the seated person's waist can be pressed.

  The sixth airbag 76 is attached along the left and right edges of the footrest surface of the footrest portion 30 (the surface with which the seated person's thighs abut). The sixth airbag 76 is composed of three bags. The seventh airbag 77 is attached to the left and right center (between the third airbag 73) of the footrest surface of the footrest portion 30. Each of the thighs of both legs of the seated person is sandwiched between the sixth airbag 76 and the seventh airbag 77. By repeating the expansion and contraction of the sixth airbag 76 and the seventh airbag 77, each of the thighs of the seated person can be sandwiched and tightened from the left and right.

  The first heater 78 is housed on the seat surface side in the seat portion 10 and on the footrest portion 30 side. The first heater 78 can warm the thigh of the seated person. The second heater 79 is housed between the fourth airbag 74 and the fifth airbag 75 on the backrest surface side of the backrest portion 20. The back of the seated person can be warmed by the second heater 79.

  The compressor 80 and the power supply device 90 which are functional units of the massage treatment device 70 are housed in the footrest portion 30. The compressor 80 supplies compressed air to the first to seventh airbags 71 to 77 through an air passage. The power supply device 90 supplies electric power to drive the compressor 80 and the first and second heaters 78 and 79.

  As shown in FIG. 6, the seat chair having such a configuration is configured such that the first connecting portion 101 is folded so that the seat portion 10 and the backrest portion 20 are overlapped and folded, and the handle 50 is gripped. To lift the first connecting portion 101 side. When the seat portion 10 and the footrest portion 30 are lifted obliquely, only the first wheel 40 provided at the distal end portion 31 of the footrest portion 30 that is the distal end portion on the seat portion 10 side with respect to the floor surface F is provided. Will be in the state which supported the seat chair with respect to the floor F. For this reason, if it is going to move a seat chair in this state, the 1st wheel 40 will rotate and it can move a seat chair easily.

  Therefore, the seat chair of the first embodiment can be easily moved in a state where it is bent at the first connecting portion 101 between the seat portion 10 and the backrest portion 20.

  Moreover, since this seat chair can move the backrest part 20 on the upper side of the diagonally inclined seat part 10 and the footrest part 30, the seat part 10 and the backrest part 20 are locked in a folded state. Even if not, the seat can be moved. For this reason, the locking mechanism which locks the seat part 10 and the backrest part 20 in the folded state is not required.

  Further, the handle 50 can be grasped and the first connecting portion 101 side of the folded seat can be easily lifted. Further, the chair 50 can be easily moved by holding the handle 50.

  Moreover, the weight of the sitting chair is increased by incorporating the massage treatment device 70. However, in a state where the seat chair is folded, the first wheel 40 supports the seat chair with respect to the floor surface F, and the first wheel 40 rotates to easily move the seat chair. At this time, since the functional parts (compressor 80, power supply device 90) of the massage treatment apparatus 70, which is a heavy object, are stored in the footrest part 30, the heavy object is positioned below and can be moved stably. . At this time, since the first connecting portion 101 side can be lightened, the first connecting portion 101 side can be easily lifted.

<Example 2>
As shown in FIG. 7, the seat chair of the second embodiment includes a distal end portion 31 of a footrest portion 30 that is a distal end portion on the side of the seat portion 10 located on the side opposite to the first connecting portion 101, and a backrest portion 120. This is different from the first embodiment in that a caster 140 whose direction is freely changed is attached to the distal end portion 121. Other configurations are the same as those of the first embodiment, and the same configurations as those of the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  This seat chair is formed so that the length of the backrest portion 120 and the combined length of the seat portion 10 and the footrest portion 30 are the same. The caster 140 is attached to the seat chair so as to protrude from the front end portions 31 and 121 of the footrest portion 30 and the backrest portion 120. This seat has a lock mechanism (not shown) that can lock the seat 10 and the backrest 20 in a folded state.

  The seat chair having such a configuration bends the first connecting portion 101 and locks the seat portion 10, the footrest portion 30, and the backrest portion 120 in a folded state. And the handle 50 is grasped and the 1st connection part 101 side is lifted so that the seat part 10, the footrest part 30, and the backrest part 20 may be in an upright state. Then, the caster 140 that protrudes from the front end portion of the footrest portion 30 and the backrest portion 20 with respect to the floor surface F is in a state of supporting the seat chair. In this state, the caster 140 rotates and the seat chair can be easily moved.

  Therefore, the seat chair of the second embodiment can be easily moved in a state where it is bent at the first connecting portion 101 between the seat portion 10 and the backrest portion 20.

The present invention is not limited to the first and second embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first and second embodiments, the handle is provided, but the handle may not be provided.
(2) In the first and second embodiments, the handle extends rearward from the end portion of the seat portion, but may be provided on the first coupling portion side of the seat portion or the backrest portion.
(3) In Examples 1 and 2, when the seat chair is placed on the floor surface, the lower surface of the handle touches the floor surface, but a part of the handle may be separated from the floor surface.
(4) In Examples 1 and 2, the footrest portion is provided, but the footrest portion may not be provided. In this case, a 1st wheel or a caster will be attached to the front-end | tip part of a seat part.
(5) In Examples 1 and 2, the massage treatment device is incorporated in the seat, but the massage treatment device may not be incorporated.
(6) In the first and second embodiments, the first wheel and the caster are fixed. However, the first wheel and the caster may be housed in the seat and protrude when moving.
(7) In the first embodiment, the first wheel whose direction cannot be changed is attached to the tip of the footrest part, but a caster whose direction can be freely changed may be attached.
(8) In Examples 1 and 2, the airbag-type massage treatment device is incorporated, but a roller-type massage treatment device may be incorporated.
(9) In Examples 1 and 2, the seat portion and the backrest portion are moved in a state of being overlapped and folded. It may be moved in a state where the backrest and the seat are open.

DESCRIPTION OF SYMBOLS 10 ... Seat part 20 ... Backrest part 30 ... Footrest part 31 ... Tip part (tip part by the side of the seat part 10 located on the opposite side to a 1st connection part)
40 ... 1st wheel (moving rotating body)
50 ... handle 60 ... lifting device 70 ... massage treatment device (71-77 ... first to seventh airbags, 78, 79 ... first, second heater, 80 ... compressor, 90 ... power supply device)
101 ... 1st connection part 102 ... 2nd connection part F ... Floor surface

Claims (6)

A seat chair comprising a seat portion and a backrest portion, which can be bent at a first connecting portion connecting the end portion of the seat portion and the end portion of the backrest portion,
A seat chair comprising a moving rotator provided at a front end portion on the seat portion side located on the opposite side to the first connecting portion.   The seat chair according to claim 1, further comprising a handle provided on the first connecting portion side.   The seat chair according to claim 2, wherein when the seat portion is placed on the floor surface, the handle comes into contact with the floor surface behind the seat portion. A footrest connected to an end of the seat located on the opposite side of the first connecting part, and provided with the moving rotating body at a tip;
An elevating device that raises the second connecting portion side so that the seat portion and the footrest portion ascend and incline toward a second connecting portion that connects the seat portion and the footrest portion; The seat chair according to any one of claims 1 to 3.   The seat chair according to any one of claims 1 to 4, wherein a massage treatment device is incorporated.   6. The seat chair according to claim 5, wherein the footrest part incorporates a function part of the massage treatment apparatus.

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