JP2015000070A - Massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage machine that enables the movement in the leg length direction of a footrest part to be smoothly carried out, and can suppress a movement mechanism from becoming thick in the front-back direction.SOLUTION: A massage machine 1 includes a seat 3 where a subject is seated, and a footrest part 5 vertically turnably provided at the front side of the seat 3 and resting legs of the subject. The footrest part 5 has a base part 54 turnably pivoted at the front side of the seat 3, a leg holding part 51 for holding the legs of the subject, and a movement mechanism 8 for moving the leg holding part 51 in the leg length direction relative to the base part 54. The movement mechanism 8 has a rack 82 extended along the leg length direction, and a pinion 83 engageable with the rack 82. A tooth face of the rack 82 is disposed to face toward at least one of the left direction and the right direction, and the pinion 83 is rotatably supported mainly on an anteroposterior shaft 84.

Description

  The present invention relates to a massage machine. More specifically, the present invention relates to a massage machine that can smoothly move the legs of the leg rest in the length direction and suppress the movement mechanism from becoming thick in the front-rear direction.

  2. Description of the Related Art Conventionally, there has been known a massage machine including a seat portion on which a user is seated and a leg placement portion that is provided on the front side of the seat portion so as to be pivotable up and down and on which a leg of the user is placed. The leg rest is provided with a massage tool for performing massage on the legs of the user. The massage device is an air cell that expands or contracts by, for example, supply or discharge of air, and when the air cell expands, massages the calf part of the user's leg and the toe part ahead of the calf part. can do.

  In Patent Document 1, a leg rest provided on the front side of the seat so as to be pivotable up and down is divided in the length direction of the leg to constitute a leg rest and a foot rest, and each moves in the length direction of the leg. A massage machine is disclosed which is possible and has air cells on the legrest and footrest. The leg rest of the massage machine is provided with a moving mechanism for moving the leg rest and the footrest in the length direction of the leg, and the moving mechanism is attached to a rear member rotatably attached to the front end of the seat. The leg rest is slidably connected to the rear member, and the footrest is slidably connected to the leg rest. The rear member and the footrest are each provided with a rack, and the leg rest is engaged with the rack. A pinion is provided, and the position of the air cell can be adjusted in the length direction of the leg by moving the leg rest and the foot rest in the length direction of the leg by this moving mechanism.

JP 2008-206719 A

However, the movement mechanism of the leg rest portion of the massage machine disclosed in Patent Document 1 is such that both racks are arranged so that the tooth surface of the rack of the rear member and the tooth surface of the rack of the footrest face each other, and the axis in the left-right direction is the center Since the pinion supported rotatably is engaged with both racks at the same time, there is a possibility that the leg rest cannot be smoothly moved in the length direction of the leg.
This is because, in the massage machine of Patent Document 1, the movement mechanism is bent by the action of the downward load due to the weight of the legrest and the footrest or the weight of the leg of the user in a state where the leg rest is rotated upward. Further, there is a problem in that there is a possibility that the movement of the leg mounting portion in the length direction of the legs cannot be smoothly performed because the deviation occurs in the direction in which the distance between the rack and the pinion is increased.
Further, when a rack and a pinion are adopted as the moving mechanism as in the massage machine of Patent Document 1, it is desirable to increase the strength by increasing the module, but the moving mechanism becomes thicker in the front-rear direction by increasing the module. There is a problem of becoming.

  Therefore, the present invention has been made to solve the above-described problems, and can smoothly move the leg mounting portion in the length direction of the leg and can suppress the movement mechanism from becoming thick in the front-rear direction. The purpose is to provide a machine.

  The massage machine of the present invention is a massage machine comprising: a seat portion on which a user is seated; and a leg mounting portion that is provided on the front side of the seat portion so as to be rotatable up and down and on which a leg of the user is placed. The mounting portion includes a base portion pivotally supported on the front side of the seat portion, a leg holding portion that holds the legs of the user, and the leg holding portion with respect to the base portion. A moving mechanism that moves in a direction, and the moving mechanism includes a rack that extends along a length direction of a leg, and a pinion that can be engaged with the rack. The surface is arranged so as to face at least one of the left direction and the right direction, and the pinion is supported so as to be rotatable about an axis in the front-rear direction.

By adopting such a configuration, the leg holding portion can be moved in the length direction of the legs, so that it can cope with various body shapes of the user. Further, even in the state where the leg rest is rotated upward, the leg of the leg rest can be smoothly moved in the length direction. That is, since the tooth surface of the rack or pinion faces at least one of the left direction and the right direction, and the distance between the rack and the pinion is not separated even if the moving mechanism is bent due to the downward load, The movement of the legs in the length direction can be performed smoothly.
Further, since the tooth surfaces of the rack and pinion face at least one of the left direction and the right direction, even if the module is made larger than the conventional one, it is possible to suppress the movement mechanism from becoming thick in the front-rear direction.

  In addition, the massage machine of the present invention is a massage machine including a seat portion on which a user is seated, and a leg placement portion on which a user's legs are placed so as to be rotatable up and down on the front side of the seat portion. The leg mounting portion includes a base portion pivotally supported on the front side of the seat portion, a legrest portion on which the calf portion of the user is placed, and a foot tip on the toe side of the calf foot of the user A footrest portion having a footrest-mounting surface for placing the portion and placing the sole, and a moving mechanism for moving the legrest portion and the footrest portion in the length direction of the legs with respect to the base portion, The moving mechanism includes a first rack provided on the base portion and extending along the length direction of the legs, and a second rack provided on the footrest portion and extending along the length direction of the legs. And a pinion provided on the leg rest, And both racks are arranged such that the tooth surfaces of the first rack and the tooth surfaces of the second rack face each other in the left-right direction, and the pinion is supported rotatably about an axis in the front-rear direction. At the same time, the racks are arranged so as to be able to engage with both racks simultaneously.

By adopting such a configuration, the legrest portion and the footrest portion can be moved in the length direction of the legs, respectively, so that it is possible to cope with various body shapes of the user. Further, even in the state where the leg rest is rotated upward, the leg of the leg rest can be smoothly moved in the length direction. That is, since the tooth surface of the rack or pinion faces at least one of the left direction and the right direction, and the distance between the rack and the pinion is not separated even if the moving mechanism is bent due to the downward load, The movement of the legs in the length direction can be performed smoothly.
Further, since the tooth surfaces of the rack and pinion face at least one of the left direction and the right direction, even if the module is made larger than the conventional one, it is possible to suppress the movement mechanism from becoming thick in the front-rear direction.

And a biasing means for biasing the sole mounting surface in a direction against a leg force applied to the sole mounting surface, wherein the biasing means includes a base portion and a leg rest portion. It is preferable that the leg rest part moves in conjunction with the movement of the foot rest part.
By adopting such a configuration, if the footrest is pressed against the footrest mounting surface and the footrest portion is moved against the force applied by the urging means, the legrest is interlocked with the movement of the footrest portion. The part moves and the position of the leg rest part can be adjusted.

Preferably, an electric actuator provided between the base portion and the footrest portion is provided, and the legrest portion moves in conjunction with the movement of the footrest portion by driving of the electric actuator.
With such a configuration, when the electric actuator is driven, the legrest portion moves in conjunction with the movement of the footrest portion, and the position of the leg rest portion can be adjusted.

Further, the moving mechanism includes a first guide part that supports the legrest part so as to be movable with respect to the base part, and a second guide part that supports the footrest part so as to be movable with respect to the legrest part. It is preferable to have a pair of left and right guide portions configured by
By setting it as such a structure, a right-and-left twist can be suppressed and a leg mounting part can be stabilized.

In addition, the guide portion is provided on the base portion, and is configured by a first protrusion protruding forward and rearward and a second protrusion provided on the footrest portion and protruding forward and rearward. And a first support wall that supports the first protrusion from the front-rear direction and the left-right direction, and a second support wall that supports the second protrusion from the front-rear direction and the left-right direction. It is preferable to be comprised from a part.
By setting it as such a structure, the rattling part can be stabilized by suppressing the rattling of the left-right and front-back direction.

  ADVANTAGE OF THE INVENTION According to this invention, while making the movement of the length of the leg of a leg mounting part perform smoothly, the massage machine which can suppress that a moving mechanism becomes thick in the front-back direction can be provided.

It is a perspective view which shows one Embodiment of the massage machine of this invention. It is composition explanatory drawing which shows one Embodiment of the massage machine of this invention. It is explanatory drawing of the right side surface which shows one Embodiment of the leg mounting part of the contracted state in the massage machine of this invention. It is a figure of the side which shows one Embodiment of the movement operation | movement of the leg mounting part in the massage machine of this invention. It is a rear view which shows one Embodiment of the leg mounting part of the contracted state in the massage machine of this invention. It is a perspective view which shows one Embodiment of the leg mounting part of the contracted state in the massage machine of this invention. It is a rear view which shows one Embodiment of the leg mounting part of the state which extended in the massage machine of this invention. It is a perspective view which shows one Embodiment of the leg mounting part of the state which extended in the massage machine of this invention. It is a front view which shows one Embodiment of the internal structure of the leg mounting part of the contracted state in the massage machine of this invention. It is a front view which shows one Embodiment of the internal structure of the leg mounting part of the extended state in the massage machine of this invention. It is the sectional view on the AA line in FIG. It is decomposition | disassembly explanatory drawing in FIG. It is a disassembled perspective view which shows one Embodiment of the internal structure of the leg mounting part of the contracted state in the massage machine of this invention. It is a disassembled side view which shows one Embodiment of the internal structure of the leg mounting part of the contracted state in the massage machine of this invention. It is a disassembled side view which shows one Embodiment of the internal structure of the leg mounting part of the extended state in the massage machine of this invention. It is explanatory drawing which shows one Embodiment of the internal structure of the leg mounting part of the contracted state in the massage machine of this invention. It is explanatory drawing which shows one Embodiment of the internal structure of the leg mounting part of the state extended in the massage machine of this invention. It is explanatory drawing which shows one Embodiment of the internal structure of the leg mounting part of the contracted state in the massage machine of this invention.

[Overall configuration of massage machine]
Hereinafter, an embodiment of a massage machine of the present invention is described based on a drawing.
FIG. 1 is a perspective view showing an embodiment of the massage machine 1 of the present invention. FIG. 2 is a configuration explanatory view showing an embodiment of the massage machine 1 of the present invention.
In addition, the concept of the direction used in the following description is the same as the concept of the direction when viewed from the user seated on the seat portion 3 of the standing massage machine 1 shown in FIG. ”, The right hand side is“ right ”, the head side is“ upper ”, the waist side is“ lower ”, and other cases will be described as appropriate.

  As shown in FIG. 1, the massage machine 1 of the present invention mainly includes a seat portion 3 on which a user is seated, and a backrest portion 4 on which a user is scolded so as to recline at the rear portion of the seat portion 3. A leg rest portion 5 provided on the front side of the seat portion 3 so as to be pivotable up and down, and an armrest portion 6 provided on both the left and right sides of the seat portion 3 for placing the arm portion of the user. The chair main body 2 is configured, and the leg frame 7 is installed on the floor to support the chair main body 2. Moreover, it has the massage unit 45 and air cells a1-a4 which are mentioned later as a massage part which massages the treatment part of a user. The seat portion 3, the backrest portion 4, the leg rest portion 5, and the armrest portion 6 function as a body support portion that supports the treatment portion.

[Structure of the seat]
The seat portion 3 includes a hard seat receiving portion (not shown) made of metal or the like, and a soft cushion portion made of urethane or the like that is provided on the upper portion of the seat receiving portion and supports the buttocks and thighs of the user. (Not shown). Moreover, the seat surface 3a of the seat part 3 is formed so as to be inclined upward, and the center of gravity of the seated user has a rear component. As shown in FIG. 1, the seat surface 3 a of the seat portion 3 is provided with a massage portion that applies pressure massage to the buttocks and / or thighs of the user. The massage part of the seat part 3 is preferably composed of a seat part air cell a1 that expands and contracts by air supply and exhaust and applies pressure massage to the buttocks and / or thighs of the user. The seat air cells a1 are preferably arranged in pairs on the left and right.

[Configuration of backrest]
The backrest portion 4 is provided in the seat portion 3 so as to be rotatable around the left and right horizontal axis, and is configured to be reclining in the front-rear direction with respect to the seat portion 3. The backrest part 4 is provided below the seat part 3 and is in a substantially horizontal state with respect to the floor surface by a first-acting first actuator 10 (see FIG. 2) that expands and contracts in the front-rear direction. It is preferable to be able to stop at any position between the state of standing substantially perpendicular to the surface 3a. The backrest 4 includes a backrest main body 40 having an opening 40a that opens in the front-rear direction, and a back pad (not shown) made of elastic leather or the like disposed in front of the backrest main body 40. Z)). As shown in FIG. 1, the backrest part 4 is provided with a massage part for massaging the back part of the user. The massage part of the backrest part 4 is preferably configured by a massage unit 45 that moves up and down along the height direction at the center of the left and right to massage the back of the user. The massage unit 45 moves up and down along the guide rail 41 provided on the backrest main body 40 by driving a lifting motor 42 (see FIG. 2). The guide rails 41 extend in the vertical direction in pairs on the left and right. In addition, the massage unit 45 drives the massage motor 43 (see FIG. 2) to move the plurality of treatment elements 45a in the left-right direction and the striking action to move the plurality of treatment elements 45a in the front-rear direction. I do.

[Configuration of armrest]
As shown in FIG. 1, the armrests 6 are provided on both sides of the seat 3, and are integrally provided on the side panel 60 that covers the lower part of the seat 3 from the outside and the upper part of the side panel 60. It is preferable to have a forearm support portion 61 that supports the forearm portion of the user and an upper arm support portion 62 that supports the upper arm portion. The upper arm support portion 62 is connected to the side surface of the backrest portion 4 via a rotation shaft (not shown) whose axial direction is the left-right direction at the upper end portion. The side panel 60 is movably attached to the leg frame 7 via a guide mechanism (not shown) on the side of the seat portion 3. Therefore, the armrest portion 6 can move in the front-rear direction while changing the angle in the vertical direction following the reclining operation of the backrest portion 4. In addition, the forearm support part 61 is provided with a massage part for applying pressure massage to the forearm part of the user. It is preferable that the massage part of the forearm support part 61 is comprised by the several air cell a2 for arm parts which expands / contracts by supply / exhaust of air, and performs a press massage on the forearm part of a user.

  As shown in FIG. 1, the forearm support portion 61 extends in the front-rear direction on the side of the seat portion 3, and includes a bottom wall 61a on which the forearm portion of the user is placed, and an outer end portion of the bottom wall 61a. It is comprised by the side wall 61b which stood up from the outer side of the forearm part, and the upper wall 61c which opposes the bottom wall 61a, and is formed in the substantially U shape by the front view. The bottom wall 61a and the top wall 61c are provided with an arm portion air cell a2 that presses the forearm portion from above and below. In the present embodiment, a plurality of arm part air cells a2 are provided in the length direction of the arm part. Further, it is preferable that a heater 47 (see FIG. 2) is provided in the armrest portion 6 so that the heater 47 gives a thermal action to the forearm portion (particularly the hand portion) or the upper arm portion.

[Configuration of the leg rest]
FIG. 3 is an explanatory diagram of the right side surface showing one embodiment of the leg resting portion 5 in a contracted state in the massage machine 1 of the present invention.
The leg rest 5 is pivotally provided on the seat 3 with a shaft 32 centered in the left-right direction as a fulcrum. The position (angle) with respect to the seat portion 3 can be changed by the two actuators 11 (see FIG. 2). As shown in FIG. 3, the leg resting portion 5 is a suspended state in which the knee is bent and the leg is placed, and a rising state in which the knee is stretched and the leg is placed (a state in which the leg is substantially horizontal with respect to the floor), It can be freely rotated between the two, and can be stopped at an arbitrary position.

  As shown in FIG. 1, the leg rest portion 5 includes a leg rest portion 52 on which the user's calf portion is placed, and a footrest on which the foot tip portion on the foot side of the user's calf and the sole is placed. It has a footrest part 53 having a surface, and a concave groove is formed so that the left and right legs of the user can be distributed and supported by the legrest part 52 and the footrest part 53. The leg rest 52 includes a bottom wall 52a facing the back of the calf part, a side wall 52b paired on the right and left facing the outer side of the calf part, and an inner surface of the calf part provided between the pair of side walls 52b and 52b. Is formed by an intermediate wall 52c facing each other. The footrest portion 53 includes a bottom wall (not shown) that faces the rear surface (heel portion) of the foot tip portion, a side wall 53b that forms a pair on the left and right sides that face the outer surface of the foot tip portion, and a pair of side walls 53b and 53b. And an intermediate wall 53c facing the inner side surface of the toe portion, and a foot placement surface 53d for placing the sole. The legrest part 52 and the footrest part 53 function as a leg holding part 51 that holds the legs of the user.

  And as shown in FIG. 1, the leg mounting part 5 is provided with the massage part which performs a press massage on the calf part or the toe part of the user. The massage part of the leg rest part 5 is composed of a calf part air cell a3 and a leg part air cell a4 that expands and contracts by air supply / exhaust and applies pressure massage to the calf part and toe part of the user. It is preferable. Specifically, the calf air cell a3 is provided on the bottom wall 52a, the side wall 52b, and the intermediate wall 52c of the leg rest 52, and the bottom wall (not shown), the side wall 53b, the intermediate wall 53c of the footrest 53, and A foot tip air cell a4 is provided on the foot placement surface 53d. Further, it is preferable that a heater 47 (see FIG. 2) is provided on the leg rest portion 5, and the heater 47 gives a thermal action to the calf portion and the toe portion of the user.

[Configuration of control means]
As shown in FIG. 2, each of the air cells a1 to a4 described above is connected to an air supply / exhaust device 12 including a pump 13 and a valve 14 through a flexible hollow air tube. The air supply / exhaust device 12 is accommodated below the seat portion 3 and is driven according to instructions from the control means 15 accommodated below the seat portion 3 to independently supply and exhaust air to the air cells a1 to a4. Can be done. Then, the air supply / exhaust device 12 is driven by an instruction from the control means 15, and the air cells a <b> 1 to a <b> 4 are inflated and contracted to press each part of the user. In the present embodiment, each of the air cells a <b> 1 to a <b> 4 is connected to the air supply / exhaust device 12 as an independent system, and the operation is controlled independently by the control means 15.

  In addition, the air supply / exhaust device 12 operates according to a preset program in accordance with an instruction from the control unit 15, and the user inputs an input to the control unit 15 by operating a remote controller 16 connected to the control unit 15. It can also operate based on the generated signal. Similarly, the operations of the massage unit 45 and the first and second actuators 10 and 11 are operated by a program set in advance according to an instruction from the control means 15, and the user operates the remote controller 16. Thus, the operation can be performed based on the signal input to the control means 15.

  Further, the control means 15 has a memory (not shown), and in this memory, a plurality of massage programs for performing massage on the user by the massage unit 45 and the air cells a1 to a4 according to a predetermined course. Is stored. The remote controller 16 has a power button 16a and a plurality of course buttons 16b to 16e corresponding to each massage program, and the corresponding massage program is executed by operating the course buttons 16b to 16e. It has become.

[About movement of leg rest]
In order to correspond to the length of the leg (the part from the knee to the toe) of the user, the leg rest part 5 has a leg holding part 51 in the length direction of the user's leg with respect to the seat part 3. It is configured to be movable. FIG. 4 is a side view showing an embodiment of the movement operation of the leg rest portion in the massage machine of the present invention. The length direction of the legs is a direction in which the knees and ankles of the user's legs placed on the leg rest portion 5 are linearly connected, and the direction from the knee to the ankle is the front in the length direction of the legs. The direction from the ankle to the knee is the rear of the leg in the length direction. Further, the length direction of the foot is a direction in which the user's heel and toes placed on the leg rest portion 5 are linearly connected, and the direction from the heel to the toes is the front of the foot length direction. The direction from the toes to the heel is the rear in the length direction of the foot.

As shown in FIG. 4, the leg rest portion 5 includes a base portion 54 that can rotate with respect to the seat portion 3, a moving portion 55 that can move in the length direction of the leg with respect to the base portion 54, and a moving portion. And a moving mechanism 8 that changes the position of the moving unit 55 with respect to the base unit 54 and moves the leg holding unit 51 in the length direction of the leg with respect to the base unit 54. doing. The leg rest 5 has the leg holder 51 moved to the rear in the length direction of the leg by the moving mechanism 8 and the leg rest 5 has contracted, and the leg holder 5 has the leg length by the moving mechanism 8. It is movable between the state where it is moved forward in the direction and the leg rest 5 is extended.
In addition, it is comprised so that the leg rest part 52 of the leg holding | maintenance part 51 may move in response to the movement of the footrest part 53 of the leg holding | maintenance part 51, and in the structure shown in FIG. The movement distance L2 in the length direction and the movement distance L3 in the length direction of the legs of the footrest portion 53 are in a ratio of 1: 2.

FIG.5 and FIG.6 is the rear view and perspective view which show one Embodiment of the leg mounting part 5 of the contracted state in the massage machine 1 of this invention. FIG.7 and FIG.8 is the rear view and perspective view which show one Embodiment of the leg mounting part 5 of the extended state in the massage machine 1 of this invention.
As shown in FIGS. 4 to 8, the legrest portion 52 and the footrest portion 53 are each moved in the length direction of the leg with respect to the base portion 54 by the moving mechanism 8.

  FIG. 9 is a front view showing an embodiment of the internal structure of the leg rest portion 5 in the contracted state in the massage machine 1 of the present invention. FIG. 10 is a front view showing an embodiment of the internal structure of the leg rest portion 5 in the stretched state in the massage machine 1 of the present invention. 11 is a cross-sectional view taken along line AA in FIG. FIG. 12 is an exploded explanatory view of FIG. FIG. 13 is an exploded perspective view showing an embodiment of the internal structure of the leg rest portion 5 in the contracted state in the massage machine 1 of the present invention. FIG. 14 is an exploded side view showing an embodiment of the internal structure of the leg rest portion 5 in the contracted state in the massage machine 1 of the present invention. FIG. 15 is an exploded side view showing an embodiment of the internal structure of the leg rest portion 5 in the stretched state in the massage machine 1 of the present invention.

  The leg rest part 5 includes a shaft 32 attached to the front side of the seat part 3 in the base part 54. The base portion 54 is rotatable with respect to the seat portion 3 with the shaft 32 having the center in the left-right direction as a fulcrum, and the position (angle) of the base portion 54 with respect to the seat portion 3 is set by the second actuator 11. Be changed. Since the base portion 54 supports the leg holding portion 51 via the moving portion 55, the position (angle) of the leg holding portion 51 with respect to the seat portion 3 can be changed by the second actuator 11.

In order to correspond to the length of the leg (the part from the knee to the toe) of the user, the leg holding part 51 of the leg rest part 5 is divided in the length direction of the leg, and the legrest part 52 and the footrest part are divided. As shown in FIG. 8, the moving part 55 of the leg rest part 5 includes a first moving part 55a to which the leg rest part 52 is fixed and a second movement to which the footrest part 53 is fixed. It has a portion 55b. As shown in FIGS. 9 and 10, the first moving part 55 a is movable with respect to the base part 54, and the second moving part 55 b is moved with respect to the base part 54. It is possible to move with respect to. Thereby, the position of the 1st moving part 55a and the 2nd moving part 55b is changed with the moving mechanism 8, and the position of the leg rest part 52 and the footrest part 53 is changed, and the leg rest part 5 is made to receive a user's leg ( It corresponds to the length of the part from the knee to the toe.
Note that wheels (tires) 59 may be rotatably attached to the left and right of the lower end of the second side of the second moving portion 55b to which the footrest portion 53 is fixed. When the footrest part 53 is moved by putting a leg on the leg rest part 5, the lower end of the footrest part 53 may reach the floor surface, but there is no fear of damaging the floor surface due to the presence of the wheels 59.

  As shown in FIGS. 11 to 15, the moving mechanism 8 includes a rack 82 extending along the length direction of the legs and a pinion 83 that can be engaged with the rack 82. Further, the rack 82 is disposed on the base portion 54 so that the tooth surface thereof faces at least one of the left direction and the right direction, and the pinion 83 is rotatably supported by the moving portion 55 about the pinion shaft 84 in the front-rear direction. Has been. As shown in FIGS. 14 and 15, the rotation of the pinion 83 meshed with the rack 82 changes the position of the moving portion 55 with respect to the base portion 54, and the leg holding portion 51 is moved relative to the base member 54. It can be moved in the length direction.

As shown in FIGS. 11 to 15, the moving mechanism 8 includes a first rack 82a provided in the base portion 54, a second rack 82b provided in the second moving portion 55b, and a first moving portion 55a. And a pinion 83 provided in the. Specifically, as shown in FIG. 13, as the moving mechanism 8, a pair of left and right first racks 82 a extending along the length direction of the legs are provided on the front surface of the base portion 54, and the footrest portion 53. A pair of left and right second racks 82b extending along the length direction of the legs are provided on the rear surface of the second moving part 55b to which the leg rest part 52 is fixed. A pair of left and right pinions 83 that can be engaged with the first rack 82a and the second rack 82b are provided on the rear surface of 55a. Furthermore, both racks (the first rack 82a and the second rack 82b) are arranged so that the tooth surfaces of the first rack 82a and the tooth surfaces of the second rack 82b face each other in the left-right direction, and the pinion 83 is arranged in the front-rear direction. It is supported so as to be rotatable about an axis, and is arranged to be able to engage with both racks simultaneously.
Since the tooth surfaces of the rack 82 and the pinion 83 face at least one of the left direction and the right direction, the movement mechanism 8 is bent by the action of the downward load in the leg mounting portion 5 in the state of being rotated upward. However, since the distance between the rack 82 and the pinion 83 is not separated, the movement of the legs of the leg rest portion 5 in the length direction can be performed smoothly. Further, since the tooth surfaces of the rack 82 and the pinion 83 face at least one of the left direction and the right direction, even if the module is made larger than the conventional one, it is possible to suppress the movement mechanism 8 from becoming thick in the front-rear direction.

  When the sole is pressed against the sole placement surface 53d of the footrest portion 53 and a leg force is applied in the length direction of the leg, the second moving portion 55b provided with the footrest portion 53 is fixed. The rack 82b moves with respect to the first rack 82 provided on the base portion 54 via the pinion 83 provided on the first moving portion 55a to which the leg rest portion 52 is fixed. In addition, since the pinion 83 provided in the 1st moving part 55a has meshed | engaged with both racks (1st rack 82a and 2nd rack 82b), as the footrest part 53 moves to the length direction of a leg. The pinion 83 rotates on both racks (the first rack 82a and the second rack 82b), and the leg rest 52 also moves in the length direction of the legs. Therefore, the leg rest part 5 can move the leg rest part 52 in conjunction with the movement of the footrest part 53 and can cope with various body shapes of the user.

  As shown in FIG. 11, the moving mechanism 8 includes a guide portion 86 that supports the moving portion 55 to which the leg holding portion 51 is fixed so as to be movable with respect to the base portion 54. Specifically, the moving mechanism 8 includes a first guide portion 86a that supports the first moving portion 55a to which the leg rest portion 52 is fixed so as to be movable with respect to the base portion 54, and a second movement to which the footrest portion 53 is fixed. It has a pair of left and right guide portions 86 composed of a second guide portion 86b that movably supports the portion 55b with respect to the first moving portion 55a to which the leg rest portion 52 is fixed. By this guide portion 86, the left and right twists can be suppressed and the leg rest portion 5 can be stabilized.

The guide portion 86 includes an engaging portion 87 that protrudes forward and rearward, and an engaged portion 88 that supports the engaging portion 87 from the front-rear direction and the left-right direction, and extends in the length direction of the legs. ing. The base portion 54 is provided with an engaging portion 87, and the moving portion 55 to which the leg holding portion 51 is fixed is provided with an engaged portion 88. By these guide portions 86, the moving portion 55 is supported so as to be movable with respect to the base portion 54. Specifically, the guide portion 86 includes an engagement portion 87 including a first protrusion 87a protruding forward and rearward, and a second protrusion 87b protruding forward and rearward, and the first protrusion 87a. The first support wall 88a that supports the front and rear direction and the left and right direction and the second support wall 88b that supports the second protrusion 87b from the front and rear direction and the left and right direction. It extends in the length direction.
The first guide portion 86a of the guide portion 86 includes a first protrusion 87a and a first support wall 88a. A pair of left and right first protrusions 87a are provided on the base portion 54, a pair of first support walls 88a are provided on the first moving portion 55a to which the leg rest portion 52 is fixed, and the first support walls 88a are Since the first protrusion 87 is slidable, the leg rest 52 can be moved relative to the base 54 by the first guide portion 86a. Further, the second guide portion 86b of the guide portion 86 includes a second protrusion 87b and a second support wall 88b. A pair of left and right protrusions 87b are provided on the second moving part 55b to which the footrest part 53 is fixed, and a pair of left and right support walls 88b are provided on the first moving part 55a to which the legrest part 52 is fixed. Since the second protrusion 87b is slidable with respect to the second support wall 88b, the footrest part 53 can be moved with respect to the legrest part 52 by the second guide part 86b.
By the engaging part 87 and the engaged part 88 of this guide part 86, the rattling part 5 can be stabilized by suppressing backlash in the left and right and front and rear directions.

Further, the moving mechanism 8 has a biasing means 85 that biases the sole mounting surface 53d in a direction against the leg force applied to the sole mounting surface 53d (backward in the leg length direction). . A pair of urging means 85 is provided between the base portion 54 and the first moving portion 55a to which the leg rest portion 52 is fixed, along the length direction of the legs. The biasing means 85 is a spring (coil spring) 85. One end 85a of the spring 85 is connected to the upper side of the front surface of the base portion 52, and the other end 85b of the spring 85 is the rear surface of the first moving portion 55a. Connected to the lower side of the. The first moving portion 55a to which the leg rest 52 is fixed by the elastic restoring force of the spring 85 is urged rearward in the length direction of the leg, so that the force is applied in the direction in which the pinion 83 rotates rearward in the length direction of the leg. Therefore, the pinion 83 provided in the first moving part 55 a to which the leg rest part 52 is fixed moves relative to the first rack 82 provided in the base part 54. In addition, since the pinion 83 provided in the 1st moving part 55a has meshed with both racks (the 1st rack 82a and the 2nd rack 82b), the movement of the footrest part 53 fixed to the 2nd moving part 55b and the 1st The movement of the leg rest portion 52 fixed to the first moving portion 55a is interlocked, and the second moving portion 55b to which the footrest portion 53 is fixed is also urged rearward in the length direction of the leg.
Therefore, when the footrest 53 is moved against the force applied by the urging means 85 by pressing the sole against the sole placement surface 53 d and the footrest 53 is moved, the legrest 52 is linked to the movement of the footrest 53. It can move, the position of the leg mounting part 5 can be adjusted, and the leg mounting part 5 can be fitted to a leg according to the length of the leg (a part from a knee to a toe part) of a user.

[Modification of moving mechanism]
Hereinafter, another modification of the moving mechanism 8 will be described.
The moving mechanism 8 may include an electric actuator 9 provided between the base portion 54 and the footrest portion 53 instead of the biasing means 85.
FIG. 16 is an explanatory view showing an embodiment of the internal structure of the leg rest portion 5 in a contracted state in the massage machine 1 of the present invention. FIG. 17 is an explanatory view showing an embodiment of the internal structure of the leg rest portion 5 in the stretched state in the massage machine 1 of the present invention. FIG. 18 is an explanatory diagram showing an embodiment of the internal structure of the leg rest portion 5 in a contracted state in the massage machine 1 of the present invention.

The electric actuator 9 of the moving mechanism 8 includes a screw rod 91 and a slide bracket 92 that is screwed with the screw rod 91. The slide bracket 92 includes a bracket main body 92a having a female screw portion screwed with the screw rod 91, and a bracket attachment portion 92b for attaching the bracket main body 92a to the second moving portion 55b to which the footrest portion 53 is fixed. Have. The screw rod 91 is provided on the base portion 54 along the length direction of the leg, and the slide bracket 92 moves along the length direction of the leg as the screw rod 91 rotates by driving of a motor (not shown). And the 2nd moving part 55b to which the slide bracket 92 was fixed also moves along the length direction of a leg. Therefore, the second rack 82b provided in the second moving part 55b to which the footrest part 53 is fixed is connected to the base part 54 via the pinion 83 provided to the first moving part 55a to which the legrest part 52 is fixed. Therefore, the electric actuator 9 can move the footrest portion 53 in the leg length direction. In addition, since the pinion 83 provided in the 1st moving part 55a has meshed | engaged with both racks (1st rack 82a and 2nd rack 82b), as the footrest part 53 moves to the length direction of a leg. The pinion 83 rotates on both racks (the first rack 82a and the second rack 82b), and the leg rest 52 also moves in the length direction of the legs. That is, the leg rest 52 moves in conjunction with the movement of the footrest 53 by driving the electric actuator 9.
Therefore, if the electric actuator 9 is driven, the leg rest 52 moves in conjunction with the movement of the footrest 53, and the position of the leg rest 5 can be adjusted.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a massage machine that can smoothly move the legs of the leg rest in the length direction and suppress the movement mechanism from becoming thick in the front-rear direction.

DESCRIPTION OF SYMBOLS 1 Massage machine 10 1st actuator 11 2nd actuator 12 Supply / exhaust device 13 Pump 14 Valve 15 Control means 16 Remote controller 16a Power button 16b-16e Course button 2 Chair main body 3 Seat part 3a Seat surface 32 Rotating shaft 4 Backrest part 40 Backrest body 40a Opening 41 Guide rail 42 Lifting motor 43 Massage motor 45 Massage unit 45a Treatment element 47 Heater 5 Leg rest 51 Leg holder 52 Leg rest 52a Bottom wall 52b Side wall 52c Intermediate wall 53 Footrest Part 53b side wall 53c intermediate wall 53d sole mounting surface 54 base part 55 moving part 55a first moving part 55b second moving part 59 wheels (tires)
6 armrest portion 60 side panel 61 forearm support portion 61a bottom wall 61b side wall 61c upper wall 62 upper arm support portion 7 leg frame 8 moving mechanism 82 rack 82a first rack 82b second rack 83 pinion 84 pinion shaft 85 biasing means 86 guide portion 86a 1st guide part 86b 2nd guide part 87 Engagement part 87a 1st protrusion 87b 2nd protrusion 88 Engagement part 88a 1st support wall 88b 2nd support wall 9 Electric actuator 91 Screw rod 92 Slide bracket 92a Bracket body 92b Bracket mounting portion a1 Seat air cell a2 Arm air cell a3 calf air cell a4 Foot tip air cell

Claims (6)

In a massage machine provided with a seat portion on which a user is seated, and a leg rest portion on which a user's legs are placed, which is provided on the front side of the seat portion so as to be rotatable up and down.
The leg rest is
A base part pivotally supported on the front side of the seat part,
A leg holder that holds the legs of the user;
A moving mechanism for moving the leg holding part in the length direction of the leg with respect to the base part;
Have
The moving mechanism is
A rack extending along the length of the legs;
A pinion engageable with the rack;
Have
The massage machine according to claim 1, wherein the tooth surface of the rack is arranged so as to face at least one of a left direction and a right direction, and the pinion is supported so as to be rotatable about an axis in a front-rear direction. In a massage machine provided with a seat portion on which a user is seated, and a leg rest portion on which a user's legs are placed, which is provided on the front side of the seat portion so as to be rotatable up and down.
The leg rest is
A base part pivotally supported on the front side of the seat part,
A legrest part on which the calf part of the user is placed;
A footrest portion having a footrest-mounting surface on which the foottip portion on the footside of the user's calves and the sole is placed;
A moving mechanism for moving the legrest part and the footrest part in the length direction of the legs with respect to the base part,
The moving mechanism is
A first rack provided on the base portion and extending along the length direction of the legs;
A second rack provided in the footrest portion and extending along the length direction of the legs;
A pinion provided in the leg rest,
Have
Both racks are arranged so that the tooth surfaces of the first rack and the tooth surfaces of the second rack face each other in the left-right direction, and the pinion is supported rotatably about an axis in the front-rear direction. A massage machine, wherein the massage machine is arranged to be simultaneously engageable with a rack. Urging means for urging the sole placement surface in a direction against the force of the legs applied to the sole placement surface;
The urging means is provided between the base portion and the leg rest portion,
The massage machine according to claim 2, wherein the legrest portion moves in conjunction with the movement of the footrest portion. An electric actuator provided between the base portion and the footrest portion;
The massage machine according to claim 2, wherein the legrest part moves in conjunction with movement of the footrest part by driving of an electric actuator. The moving mechanism is
A first guide part that supports the legrest part so as to be movable with respect to the base part;
5. The device according to claim 2, further comprising a pair of left and right guide portions configured by a second guide portion that movably supports the footrest portion with respect to the legrest portion. The massage machine described in. The guide portion is
An engaging portion comprising a first protrusion provided on the base portion and protruding forward and rearward; and a second protrusion provided on the footrest portion and protruding forward and rearward; and
It is comprised from the to-be-engaged part comprised by the 1st support wall which supports the said 1st protrusion from the front-back direction and the left-right direction, and the 2nd support wall which supports the said 2nd protrusion from the front-back direction and the left-right direction. The massage machine according to claim 5.

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