JP5038838B2 - Chair equipment - Google Patents

Description

  The present invention relates to a chair device having a seat on which a user is seated, and more particularly to a chair device useful for improving blood circulation of the body by applying vibration to the user's buttocks.

  When sitting in a chair for a long time in the same posture, the blood circulation of the body is lowered, particularly in the buttocks that are in direct contact with the seat of the chair. This causes coldness and dullness of the lower body, as well as stiffness.

  The present invention has been devised in view of the above circumstances, and separates the seat portion on which the user's buttocks are placed into the first seat portion and the second seat portion, and these. To provide a chair device capable of continuously stimulating the buttocks by continuous vibration even when the user is sitting, and thus preventing lowering of blood circulation in the lower body Is the main purpose.

Invention of Claim 1 has the seat part in which a user's buttocks are mounted among this invention, and this seat part can mount the 1st seat part which can mount one side of the right and left of the said buttocks. And a second seat portion that is provided separately from the first seat portion and on which the other side of the collar portion can be placed, and the first seat portion and the second seat portion are left and right. a chair apparatus characterized by comprising a driving unit for moving toward and away continuously in.

  According to a second aspect of the present invention, the first backrest portion capable of supporting one of the left and right sides of the back of the user seated on the seat portion is provided separately from the first backrest portion, and A second backrest portion that can support the other side of the back; and the drive portion includes the first backrest portion and the second backrest portion on the first seat portion and the second seat portion. The chair device according to claim 1, wherein the chair devices are successively moved toward and away from each other in synchronization with each other.

  According to a third aspect of the present invention, there is provided a first handrail portion that can place an arm on one side of a user seated on the seat portion, and a second handrail portion that can support the arm on the other side. The drive unit continuously moves the first handrail portion and the second handrail portion toward and away from each other in synchronization with the first seat portion and the second seat portion, respectively. The chair device according to claim 1, wherein the chair device is a chair device.

  According to a fourth aspect of the present invention, in the driving unit according to any one of the first to third aspects, the first seat portion and the second seat portion are moved closer to and away from each other 50 to 2000 times per minute. It is a chair apparatus of description.

  In the invention according to claim 5, the drive unit includes a box-like case having an open upper surface, a rail member fixed to the inside of the case and extending substantially horizontally in the width direction of the seat portion, and the rail on the lower surface side. A slider that is slidable along the member, and the first seat is mounted on the upper surface side, and the first support plate provided on the upper side and the outer side of the case, adjacent to the first support plate A second support plate disposed on the lower surface side and slidable along the rail member, and having the second seat portion attached to the upper surface side; an electric motor housed in the case; and the case A vertical drive shaft accommodated in the motor, a motion conversion unit for connecting the motor and the drive shaft, and converting a one-way continuous rotational motion of the motor into a reciprocating angular motion and transmitting the reciprocating angular motion to the drive shaft, Drive shaft and first support And a first arm for reciprocating the first support plate along the rail member, and a connection between the drive shaft and the second support plate and the second The chair device according to any one of claims 1 to 4, further comprising a second arm that reciprocates a support plate in a direction opposite to the first support plate.

The invention according to claim 6 is the chair device according to any one of claims 1 to 5, wherein the first seat portion and the second seat portion reciprocate with a stroke of 2 to 20 mm.

In the present invention, the seat portion on which the user's buttocks can be placed is provided separately from the first seat portion on which the left and right sides of the saddle portion can be placed, and the first seat portion, and And a second seat portion on which the other side of the collar portion can be placed, and a drive portion that moves the first seat portion and the second seat portion to the left and right continuously. Therefore, the user is stimulated by continuous vibration from the buttocks while sitting on the chair device. This prevents a decrease in blood circulation in the buttocks and helps to improve coldness and stiffness. In addition, as a result of stimulation to the buttocks being transmitted to the knee and the like through bones and muscles, blood circulation of the entire lower body can be improved efficiently. In particular, the continuous approaching / separating movement between the first seat and the second seat continuously stimulates the hip joint and sphincter muscles. It also helps to tighten the lower body.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is an overall perspective view of a chair device 1 according to the present embodiment, FIG. 2 is a plan view thereof, FIG. 3 is a rear view thereof, FIG. 4A is a side view showing an example of a use state, and FIG. It is the same front view.

  In FIG. 1 thru | or 3, the chair apparatus 1 of this embodiment is the leg member 2 installed in the floor F, the seat part 3 supported by this leg member 2, and the user's U buttocks are mounted, It has a backrest portion 6 that can support the back of the user sitting on the seat portion 3. The seat portion 3 is provided separately from the first seat portion 3A on which one of the left and right sides of the collar portion can be placed, and the first seat portion 3A, and on the other side of the collar portion. The chair device 1 of the present embodiment includes a drive unit 4 that continuously moves the first seat 3A and the second seat 3B toward and away from each other. Yeah. As shown in FIG. 2, regarding the chair device 1, the direction represented by the symbol FB is the front-rear direction and the direction represented by the symbol WD is the width direction.

  In the present embodiment, the leg member 2 includes a substantially U-shaped grounding portion 2A that can be stably grounded on the floor surface F, and a leg body 2B that is fixed to the grounding portion 2A and extends substantially vertically upward. Including. For example, the leg body 2B preferably has a height adjusting function (not shown). In addition, in the present embodiment, the seat portion 3 is attached to the upper portion of the leg main body 2B via a drive portion 4 having a substantially box shape. However, the shape or the like of the leg member 2 is not limited to such a specific form.

  The seat portion 3 includes a first seat portion 3A and a second seat portion 3B that are provided separately in the width direction, and in the present embodiment, these are substantially symmetrical. Each of the seat portions 3A and 3B is made of, for example, a wood material or a resin, so that a plate-like base body 3a that can stably hold the shape of the seat portion, and a urethane sponge or the like fixed to the upper surface of the base body 3a, for example. The cushioning material 3b includes a cushioning material 3b and a cover 3c made of, for example, a cloth material, a resin sheet, leather, or the like, which covers the cushioning material 3b and whose peripheral edge is fixed to the base 3a. In addition, what hangs down so that the both-sides edge of seat part 3A and 3B of this embodiment may wrap around the both sides of the drive part 4 is illustrated. However, it goes without saying that the materials, shapes, and the like of the seat portions 3A and 3B are not limited to the illustrated modes and can be variously modified.

  In FIG. 5, the state which removed the seat part 3 of the chair apparatus 1 is shown. 6 is a plan view of the drive unit 4 alone, FIG. 7 is a sectional view taken along the line AA, FIG. 8 is a sectional view taken along the line BB, FIG. 9 is a sectional view taken along the line CC in FIG. 10 is a perspective view of the drive unit 4 alone. As shown in FIGS. 6 to 10, the drive unit 4 includes a box-shaped case 8 whose upper surface is opened, and a rail that is fixed to the inside of the case 8 and extends in the width direction of the seat 3 substantially horizontally. Members 9, 9, two front and rear sliders 10 slidable along the rail member 9, the slider 10 on the lower surface side, and the first seat portion 3 A on the upper surface side. A first support plate 11A provided on the upper side and the outer side, a slider 10 on the lower surface side and the second seat portion 3B on the upper surface side are disposed adjacent to the first support plate 11A, respectively. The second support plate 11B, the electric motor M accommodated in the case 8, the vertical drive shaft 12 accommodated in the case 8, and the motor M and the drive shaft 12 are connected. A motion conversion unit 13.

  In this embodiment, the case 8 is formed in a rectangular parallelepiped box shape in which only the upper surface is opened. That is, the case 8 includes a bottom wall 8c, side walls 8s, 8s on both sides rising from the bottom wall 8c, a front wall 8a connecting the side walls 8s on the front side, and a rear wall 8b connecting the side walls 8s on the rear side. Have. Such a case 8 is desirably formed of a material having sufficient strength, preferably a metal material.

  In the present embodiment, the rail member 9 is made of a metal rod having a circular cross section. Further, both end portions of the rail member 9 are fixed to the side walls 8 s and 8 s of the case 8 with bolts 17, respectively. Moreover, the rail member 9 of this embodiment is distribute | arranged to the front wall 8a side and the rear wall 8b side of the case 8 one by one, and arrange | positioned in parallel mutually. Needless to say, the shape and number of the rail members 9 can be changed as necessary.

  The slider 10 has a substantially prismatic shape, and has a rolling element (not shown) that rolls in contact with the rail member 9 inside thereof, and can slide smoothly along the rail member 9. That is, the rail member 9 and the slider 10 constitute a so-called linear motion bearing. As shown in FIGS. 7 and 8, the slider 10 has a height protruding upward from the upper edge 8 e of the case 8 when mounted on the rail member 9.

  The first support plate 11A and the second support plate 11B are made of, for example, a rectangular plate material, and have a length in the front-rear direction FB straddling the front and rear rail members 9, 9. Then, one slider 10 is fixed to each of the lower surfaces of the support plates 11A and 11B in the front-rear direction. Accordingly, the support plates 11A and 11B are held at the same height on the upper side and the outside of the case 8. In other words, as shown in FIGS. 7 and 8, the support plates 11 </ b> A and 11 </ b> B are supported so as to be slidable in the width direction WD without contacting the upper edge 8 e of the case 8.

  The motor M is a DC motor such as a brushless motor, for example, and as shown in FIG. 8, the casing Ma is fixed to the upper surface of the shelf plate 18 fixed in the case 8. Further, the drive shaft Mb of the electric motor M penetrates the shelf plate 18 and extends to a space between the shelf plate 18 and the bottom wall 8c of the case, and a pulley 20 is fixed to the tip portion thereof. The motor M is rotationally controlled by a control device (not shown) housed in the case 8. Further, for example, a remote control device (not shown) that allows the user to send a predetermined signal from the outside to the control device may be connected to the control device.

  As shown in FIG. 10, the drive shaft 12 extends vertically through the shelf 18 and is rotatably supported by a bearing 21 fixed to the shelf 18. The drive shaft 12 is provided between the first support plate 11A and the second support plate 11B. Further, an intermediate portion of a lever 26 extending substantially horizontally along the front-rear direction FB is integrally fixed to the upper end side of the shelf 18 of the drive shaft 12 via a key or the like.

  The motion conversion unit 13 includes a deceleration pulley 13a to which torque is transmitted via a belt B from a pulley 20 fixed to a drive shaft Mb of an electric motor M, and one end of the rotation shaft of the pulley 13a to the deceleration pulley 13a. And a connecting arm 13b pivotally mounted at a position eccentric in the radial direction by a distance e (shown in FIG. 9), one end pivotally connected to the connecting arm 13b, and the other end connected to the drive shaft 12. And a rocking lever 13c fixed integrally through a key or the like. The deceleration pulley 13 a is pivotally supported by a bearing 23 fixed to the shelf 18 and is disposed in a space below the shelf 18. Reference numeral 25 denotes a tension roller for adjusting the tension of the belt B.

  FIG. 11 is a schematic plan view for explaining the operation of such a motion conversion unit 13, and the shelf board 18 and the like are omitted as appropriate. First, the pulley 20 continuously rotates in one direction by the electric motor M. This torque is transmitted through the belt B to the deceleration pulley 13a. The connecting arm 13b pivotally attached to the deceleration pulley 13a by a distance e from its center causes the swing lever 13c to swing within a certain range, and is thus fixed integrally with the swing lever 13c. The drive shaft 12 is reciprocated. As described above, the motion conversion unit 13 of the present embodiment connects the motor M and the drive shaft 12, converts the one-way continuous rotational motion of the motor M into a reciprocating angular motion, and transmits it to the drive shaft 12. Yes. Note that the range of reciprocal angular motion of the drive shaft 12 can be changed by changing the length of the swing lever 13c.

  It goes without saying that the range of movement (rotation angle) of the reciprocating angular movement of the drive shaft 12 can be changed by adjusting the eccentric distance e of the articulated arm 13b and / or the length ratio of the arms. In the present embodiment, the eccentric distance e is set to 3 mm, preferably 1 to 15 mm, more preferably 1 to 10 mm, and still more preferably about 1 to 5 mm. Further, the angular velocity of the drive shaft 12 can be adjusted by changing the rotational speed of the electric motor M.

  Furthermore, the drive unit 4 includes a first arm 15A that connects the drive shaft 12 and the first support plate 11A, and a second arm that connects the drive shaft 12 and the second support plate 11B. 15B. In the present embodiment, the first arm 15A is connected to one end of the lever 26 provided on the drive shaft 12, and is pivotally attached to the first support plate 11A on its lower surface. On the other hand, the second arm 15B is connected to the other end of the lever 26 and pivotally attached to the second support plate 11B on its lower surface. In this way, by connecting the first and second arms 15A and 15B to the drive shaft 12 via the lever 26, the reciprocating angular motion of the drive shaft 12 is transferred to the first and second arms 15A and 15B. It is desirable in that it can be amplified and transmitted.

  The first arm 15 </ b> A connected to the drive shaft 12 that reciprocally moves reciprocally moves the first support plate 11 </ b> A along the rail member 9 in the width direction. On the other hand, the second arm 15B reciprocates the second support plate 11B in the opposite direction to the first support plate 11A. That is, the first support plate 11A and the second support plate 11B can continuously move toward and away from each other while the electric motor M is driven. As a result, the first seat portion 3A and the second seat portion 3B fixed to the first support plate 11A and the second support plate 11B, respectively, are continuously moved toward and away from each other repeatedly. It can be carried out. Note that the movement of the lever 26 is a rotational movement, and the first and second support plates 11A and 11B are linear reciprocating movements. Therefore, the first arm 15A and the second arm 15B are provided with the support plate 11A, It is desirable to be pivotally connected to 11B.

  The operation of the chair device 1 configured as described above will be described. As shown in FIG. 4, the user U first sits on the seat 3 of the chair device 1. The seating posture is free as long as one side of the buttock is placed on the first seat 3A and the other side of the buttock is placed on the second seat 3B. In the example of FIG. 4, the user U is seated so that his / her legs are extended and straddling the seat 3 as in a riding posture, but the user U may be seated on the seat 3 with both feet closed. .

Next, the drive unit 4 is operated by operating a switch or the like (not shown), and the seat unit 3 is moved to approach and separate from side to side . As a result, the user's U's buttocks receive a continuous stimulus from the buttocks as a result of repeatedly and continuously performing an exercise that expands left and right and an exercise that is narrowed. This improves the blood circulation of the body, especially the blood circulation of the lower body, and helps to improve coldness and stiffness. Note that stimulation to the buttocks can be transmitted to the knee or the like via bones or muscles, and as a result, blood circulation in the entire lower body can be improved efficiently. In particular, the continuous approach / separation movement between the first seat 3A and the second seat 3B continuously stimulates the hip joint and sphincter muscles, resulting in effective training of these parts that are usually difficult to train. Also useful.

  Further, in the case of a chair device that simply moves the seat portion left and right, the axis of the user sitting on the seat portion (the center line of the body) is likely to shake from side to side. For this reason, it tends to be difficult to read and write while sitting on the seat. On the other hand, in the chair apparatus 1 of this embodiment, the continuous approach / separation movement of the first seat portion 3A and the second seat portion 3B is symmetric with respect to the center line of the user's body. For this reason, since the axis | shaft of the user's U sitting on the seat part 3 does not shake right and left easily, desk work, such as reading, writing, and / or a personal computer work, can be easily performed while sitting on the seat part. it can.

  Although not particularly limited, the drive unit 4 is configured to move the first seat portion 3A and the second seat portion 3B, for example, 50 times or more, preferably 100 times or more, more preferably 150 times or more, in one minute. More preferably, it is desirable to make the approach / separation movement 200 times or more (in other words, the number of reciprocations of each seat portion per minute). When the number of times is less than 50, there is a possibility that the stimulation of the user U's body is small and the blood circulation promoting effect cannot be sufficiently expected. On the other hand, if the number of approaching / separating movements increases, the movement of the seats 3A and 3B becomes faster, so that slippage tends to occur between the buttocks and the seats 3, and there is a risk that sufficient vibrations may not be transmitted to the buttocks. is there. From such a viewpoint, the approaching / separating movement number of the first and second seat portions 3A and 3B is preferably 2000 times or less, more preferably 1500 times or less, and still more preferably 1000 times or less.

  Further, the first seat portion 3A and the second seat portion 3B reciprocate in the opposite directions during the approaching / separating movement, but the stroke (maximum amount of peak toe peak) is preferably 2 mm or more, More preferably, 4 mm or more is desirable. If the stroke is too small, the stimulation to the user U is reduced, and there is a possibility that the blood circulation promoting effect cannot be expected sufficiently. On the other hand, if the stroke is too large, slipping occurs between the heel portion and the seat portion, and a sufficient effect may not be obtained. From such a viewpoint, the stroke of each seat is preferably 20 mm or less, more preferably 15 mm or less. Although not shown, the chair device 1 may be provided with a timer or the like to automatically stop the operation time of the drive unit 4.

  Further, as shown in FIGS. 4A and 5, the backrest 6 of the present embodiment can support the left and right sides of the back of the user U seated on the seat (the right side in this example). The first backrest 6A includes a second backrest 6B which is provided separately from the first backrest 6A and can support the other side (left side in this example) of the back. Each of the backrest portions 6A and 6B includes a substantially L-shaped frame member 28 and a pad 29 that is fixed to the frame member 28 and is brought into contact with the back of the user. The frame member 28 includes a horizontal frame portion 28a that extends horizontally and a vertical frame portion 28b that is bent at the rear end of the horizontal frame portion 28a and extends upward, and the horizontal frame portion 28a of the first backrest portion 6A is the first frame portion 28a. The first support plate 11A and the horizontal frame portion 28a of the second backrest portion 6B are fixed to the second support plate 11B, respectively.

  Therefore, by driving the drive unit 4, the first backrest portion 6A and the second backrest portion 6B are successively approached in synchronization with the first seat portion 3A and the second seat portion 3B, respectively.・ Can move away. In such a chair device 1, not only the user's buttocks but also the back can be vibrated, and the blood circulation of the user can be further improved.

  Moreover, the chair apparatus 1 of this embodiment may be provided with the handrail part 7 which can each support a user's left and right arm, as FIG. 12 shows. In this embodiment, the handrail part is extended by extending the pads 29 of the first backrest part 6A and the second backrest part 6B to the side part of the user seated on the seat part 3, respectively. 7 is formed.

  The handrail portion 7 includes a first handrail portion 7A on which an arm on one side (right side in this example) of the user can be placed and a second arm that can support the arm on the other side (left side in this example). These handrail portions 7B can also move toward and away from each other in synchronization with the first seat portion 3A and the second seat portion 3B. Therefore, in such an embodiment, vibration (movement) symmetrical to the center line of the body can be given also to the user's buttocks, back, and arms. Therefore, the blood circulation of the body can be improved in a wider range. In this embodiment, both the backrest 6 and the handrail 7 are provided, but only the handrail 7 may be provided.

  Furthermore, as shown in FIG. 13, the chair device 1 may be used while the user U is sitting on the seat portion 3 in the reverse direction of the above-described embodiment. In this case, the backrest part 6 can be substituted for the handrail part 7 that supports the arm of the user U sitting on the seat part 3.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications. For example, in the drive unit 4, a lever crank mechanism is used as the motion conversion unit 13. However, the present invention is not limited to this. For example, a pinion gear is fixed to the drive shaft 12 and rack gears are respectively attached to the support plates 11 </ b> A and 11 </ b> B. For example, the first and second seat portions 3A and 3B may be moved toward and away from each other by fixing them. Further, the motion conversion unit 13 may be omitted, and for example, the servomotor may be reciprocated and transmitted to the drive shaft 12 via a belt or the like. In addition to this, various mechanisms can be employed to drive the first and second seat portions 3A and 3B.

It is a whole perspective view of the chair apparatus of this embodiment. It is a top view of FIG. It is a rear view of FIG. (A) And (b) is the side view and front view which show an example of the use condition of a chair apparatus. It is the perspective view which removed the seat part from the chair apparatus. It is a top view of a drive part. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a perspective view of a drive part. It is the schematic explaining the effect | action of a drive part. It is a perspective view which shows other embodiment of this invention. It is a side view which shows the other use condition of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chair apparatus 2 Leg part 3 Seat part 3A 1st seat part 3B 2nd seat part 4 Drive part 6 Back part 6A 1st back part 6B 2nd back part 7 Handrail part 7A 1st handrail part 7B Second handrail portion 8 Case 9 Rail member 10 Slider 11A First support plate 11B Second support plate 12 Drive shaft 13 Motion conversion portion 15A First arm 15B Second arm M Electric motor

Claims (6)

Having a seat on which the user's buttocks are placed;
The seat portion is provided with a first seat portion on which one of the left and right sides of the flange portion can be placed, and a second seat which is provided separately from the first seat portion and on which the other side of the flange portion can be placed. And a drive unit that moves the first seat and the second seat continuously in the left and right directions .
A first backrest that can support one of the left and right sides of the back of the user sitting on the seat and the first backrest are provided separately from each other and can support the other side of the back. With two backrests,
The drive unit is configured to move the first backrest and the second backrest in a continuous manner so as to approach and separate from each other in synchronization with the first seat and the second seat, respectively. Item 2. The chair device according to Item 1. A first handrail portion on which one arm of a user seated on the seat portion can be placed; and a second handrail portion on which the other arm can be supported;
The drive unit moves the first handrail part and the second handrail part continuously and away from each other in synchronization with the first seat part and the second seat part, respectively. The chair device according to claim 1 or 2.   The chair device according to any one of claims 1 to 3, wherein the driving unit moves the first seat portion and the second seat portion closer to and away from each other by 50 to 2000 times per minute. The drive unit is a box-shaped case whose upper surface is open,
A rail member fixed inside the case and extending substantially horizontally in the width direction of the seat;
A first support plate having a slider slidable along the rail member on the lower surface side and the first seat on the upper surface side and provided on the upper and outer sides of the case;
A second support plate disposed adjacent to the first support plate and having a slider slidable along the rail member on the lower surface side and the second seat portion attached to the upper surface side;
An electric motor housed in the case,
A vertical drive shaft housed in the case,
A motion converter that connects between the motor and the drive shaft and converts a one-way continuous rotational motion of the motor into a reciprocating angular motion and transmits it to the drive shaft;
A first arm that connects the drive shaft and the first support plate and reciprocates the first support plate along the rail member; and the drive shaft and the second support plate; The chair device according to any one of claims 1 to 4, further comprising: a second arm that connects the second support plate and reciprocates the second support plate in a direction opposite to the first support plate.   The chair device according to any one of claims 1 to 5, wherein each of the first seat portion and the second seat portion reciprocates with a stroke of 2 to 20 mm.

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