JP2009082324A - Massaging chair with foot massaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massaging chair which is a simple structure but is structured so as to permit a foot massaging device to move up and down and to be stored. <P>SOLUTION: The massaging chair 1 has a seat portion 2, a backrest portion 4, and the foot massaging device 5 installed in the front portion of the seat portion 2, and is provided with an advancing and retreating mechanism 7 continuously connected to the foot massaging device 5 below the seat portion 2. When the advancing and retreating mechanism 7 moves forward, the foot massaging device 5 advances to a use position ahead of the seat portion 2 and when the advancing and retreating mechanism 7 moves rearward, the foot massaging device 5 is stored in a storage position P below the seat portion 2. The advancing and retreating mechanism 7 is structured so as to permit the foot massaging device 5 to switch between two positions: the lower use position U1 where the foot massaging device 5 lowers its leading edge and the upper use position U2 where the foot massaging device 5 raises its leading edge upward in the use position and vice versa. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a massage chair provided with a foot massage device.

As a massage chair provided with a foot massage device, for example, there is one disclosed in Patent Document 1.
This massage chair has a backrest part at the back of the seat part and a foot massage device at the front part, and the backrest part is equipped with a massage mechanism that massages the user's back part. It has a built-in lower limb massage mechanism that massages the lower limbs of a person. Further, the backrest portion can be reclined back and forth, and the footpad device is swingably provided in front of the seat portion via a support member.

Such a massage chair is not only used for performing a massage but also often used as a mere chair. In particular, this type of massage chair often has a soft cushion built into the seat, etc., and since the backrest has a reclining function, it is suitable for use as a sofa. Yes.
However, the foot massage device of Patent Document 1 has a holding groove formed on the front surface thereof, so that the lower limb must be fitted in the holding groove even when the massage function is not used, thereby freeing the foot. Movement was restricted and it was difficult to have a comfortable posture. It also contributed to the loss of the appearance of the chair.

Therefore, in order to avoid such inconvenience, the applicant of the present application has already developed a technique such as Patent Document 2.
This massage chair has a push-pull mechanism that can move the foot massage device between a use position and a built-in position below the seat, and the push-pull mechanism is installed on both sides of the massage chair. A guide rail, a push / pull rod that moves in and out along the guide rail, and a carriage plate coupled to the push / pull rod are connected to the foot plate by a pin.
Therefore, after the foot massage device is located at the use position, the front surface (massage surface) and the rear surface (foot rest surface) of the foot massage device can be rotated and switched.
JP 2002-238963 A JP 2007-75590 A

However, there are various requests from users of massage chairs, and a request such as “reversal switching between the front and rear surfaces of the foot massage device is unnecessary” has been raised. On the other hand, there have been many requests from users that they want to take a comfortable posture with their lower limbs raised forward while inserting the lower limbs into the foot massage device. Of course, there is still a demand for “please store in an unobstructed position” when the foot massage device is not used.
Therefore, in view of the above problems, the present invention has an object to provide a massage chair that has a configuration in which the foot kneading device can move up and down and can store the foot kneading device while being a simple mechanism. And

In order to achieve the above object, the present invention takes the following technical means.
That is, the massage chair provided with the foot massage device according to the present invention is a massage chair having a seat portion, a backrest portion provided at the rear portion of the seat portion, and a foot massage device installed at the front portion of the seat portion. An advance / retreat mechanism connected to a foot grinder is provided below the seat, and when the advance / retreat mechanism advances forward, the foot grinder is in front of the seat and is a position where the user's lower limb can be massaged. When the advancement / retraction mechanism moves backward to the use position, the foot kneading device is stored in a storage position formed below the seat portion, and the advance / retreat mechanism has the foot kneading device in the use position at the tip thereof. It is characterized in that it can be switched at two positions, ie, a lower use position that is lower and an upper use position whose tip is upper.

Specifically, the foot massage device in the lower use position has a bottom surface facing the floor surface and a surface for massaging the lower limbs facing forward, and the foot massage device in the upper use position is The foot massage device in the stowed position is in a state of facing the upper side of the foot massager, and the bottom surface of the foot massage device is directed forward and flush with the front edge of the seat and the lower leg is massaged upward. It is in a state to face.
Preferably, the advancing / retreating mechanism has a first guide rail installed below the seat portion and having a horizontal portion on the rear side and an upwardly curved arc portion on the front side, and along the first guide rail. The first rod includes: a travel mechanism that can be moved; a first rod body that is attached to the travel mechanism so as to project forward; and a link mechanism that is disposed at a rear portion of the foot grinder. The front end portion of the body and the upper end portion of the link mechanism are coaxially connected to the upper part of the rear portion of the foot massage device so as to be rotatable about the left and right axis, and when the travel mechanism moves to the horizontal portion of the first guide rail, When the foot kneading device is located at the storage position and the travel mechanism is an arc portion of the first guide rail and moves to the rear side, the foot kneading device is located at the lower use position, and the travel mechanism is located at the first guide rail. The arc part of the Then, may the link mechanism is configured to an upper use position foot massaging device operates.

  In addition, the link mechanism includes a support member provided with a rolling wheel at a lower end portion, and an upper end portion rotatably connected to an upper portion of a rear portion of the footgrip device coaxially with the first rod body. An actuating link which is provided in the middle part so as to be rotatable about the left and right axis, and whose front end part pushes up the rear surface of the foot gripping device; and a connecting link whose front end part is connected to the rear end part of the actuating link; A moving body that is connected to the rear end portion of the connecting link so as to be rotatable about a left-right axis and moves in the front-rear direction below the seat portion, and the travel mechanism is an arc portion of the first guide rail. Then, when moving to the front side thereof, the forward movement of the moving body is restricted, the rear end portion of the operating link is pulled backward via the connection link, and the operating link is moved with respect to the support member. Rotate and the front end of the working link is behind the foot grinder To work pushed up, may the the mobile and the connecting link and the operating link is a structure which has been linked.

More preferably, the traveling mechanism has a traveling shaft that is turned in the left-right direction and is pivotally supported on the proximal end side of the first rod body and has gears at both ends, and a driving device that rotationally drives the traveling shaft. And a rack tooth with which the gear of the traveling shaft meshes is provided on the upper side of the first guide rail, and the gear moves on the rack tooth when the driving device rotates and drives the traveling shaft. The travel mechanism may be movable in the front-rear direction along the first guide rail.
The traveling mechanism has a guide shaft that is arranged in parallel to the traveling shaft and is pivotally supported on the proximal end side of the first rod body, and both ends move along the first guide rail. Also good.

  Most preferably, the advancing / retreating mechanism has a switching assist mechanism that smoothly switches between the lower use position and the upper use position of the foot massaging device, and this switching assist mechanism is installed below the seat portion and rear part. A second guide rail having a horizontal portion on the side and a convex arc portion on the front side, and a rear end portion movable along the second guide rail, and a front end portion engaged with an upper portion of the support member. A second rod body to be joined, and when the foot kneading device is switched from the lower use position to the upper use position, the rear end portion of the second rod body is the front side of the arc portion of the second guide rail. It is good to be comprised so that the front-end part or midway part of the said 2nd rod body may press the said supporting member below, as it slides toward the front.

In addition, an engagement member is provided on the rear side upper part of the foot massage device, and the engagement member is provided with an arcuate engagement groove facing upward and downward, and the engagement rod is provided with the second rod body. A pin member provided in the middle portion of the second rod body is slidably fitted, and the rear end portion of the second rod body slides forward with the front side of the arc portion of the second guide rail. Accordingly, the pin member may be configured to press the lower end portion of the engagement groove and to press the support member downward.
The seat portion includes a pair of seat support portions that support the seat portion from the left and right, and the first guide rail and the second guard rail are provided on an outer surface of the foot massage device and an inner surface of the seat support portion. The structure provided between the two is preferable.

The second guide rail may be provided above the first guide rail.
Furthermore, sensor means for detecting the presence of a user's lower limb in the footpad device when the footpad device is moved to the storage position is provided in the front portion of the seat and / or the foot grip device. It is good that it is the composition.

  According to the massage chair according to the present invention, the foot massage device can be moved up and down, and the user can raise the lower limb and take a comfortable posture while massaging the lower limb. In addition, according to the massage chair according to the present invention, the foot massage device can be stored, and even when the massage function is not used, the user's feet can freely move and the user can take a comfortable posture. Will be able to.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
1 to 4 and FIG. 9 show a first embodiment of a massage chair that can incorporate a foot massage device 5 according to the present invention.
The massage chair 1 includes a seat portion 2 and a pair of left and right legs 3 and 3 (seat portion support portions) that support the seat portion 2 at a predetermined height. A backrest part 4 is provided at the rear part of the seat part 2. Further, a foot massage device 5 for massaging and massaging the user's lower limbs (especially calves) is provided at the front of the seat portion 2.

In the following description, the left-right direction in FIG. 1 is referred to as the front-rear direction in the actual apparatus, and the up-down direction in FIG. 1 is referred to as the up-down direction in the actual apparatus. 1 is referred to as a horizontal direction or a width direction in an actual apparatus. These directions coincide with those seen from the user sitting on the massage chair 1.
The seat portion 2 is wide enough to support the user's buttocks from below, and is disposed so as to be bridged on a base member provided between the pair of left and right legs 3 and 3. ing. The backrest portion 4 has a lower end portion thereof and a rear portion of the seat portion 2 pivoted so as to be swingable in the front-rear direction, and is reclined by a reclining mechanism 38 (linear actuator mechanism) disposed on the lower right side of the seat portion 2. It is possible. Inside the backrest part 4, a massage mechanism for the back part that performs massage or hitting massage is incorporated so as to be movable up and down.

A foot massage device 5 is provided on the front side of the seat 2. The foot massage device 5 is formed in a substantially square shape in front view and a boot shape in side view. The front surface of the foot massage device 5 is a massage surface 5a, and a pair of left and right holding grooves 6 and 6 for holding and holding the lower limbs are formed. On the opposing surfaces in the holding groove 6 (on both sides of the lower limb), a lower limb massage device for massaging the lower limb is incorporated.
The massage device for the lower limbs can be configured to stagnate by swinging a plate long in the length direction of the foot to the left or right, or configured to stagnate with an air bag that expands and contracts by supplying and discharging air. .

The foot massaging device 5 is formed in a use position (a lower use position U1, an upper use position U2) that is in front of the seat portion 2 and is capable of massaging the user's lower limbs, and below the seat portion 2. It is possible to move between the space portions (storage position P).
That is, an advance / retreat mechanism 7 is provided below the seat portion 2, and the advance / retreat mechanism 7 is configured to be connected to the foot massage device 5. When the advance / retreat mechanism 7 advances forward, the foot kneading device 5 advances to the use positions U1, U2, and when the advance / retreat mechanism 7 retreats backward, the foot kneading device 5 is stored in the storage position P.

The advancing / retracting mechanism 7 includes a first guide rail 8 installed to face in the front-rear direction below the seat portion 2, a traveling mechanism 9 movable along the first guide rail 8, and a front of the traveling mechanism 9. It has the 1st rod body 10 attached to protrusion shape.
Specifically, a plate-like guide rail forming portion 11 is attached to each inner side surface in the width direction of the pair of left and right leg portions 3 and 3. The guide rail forming portion 11 is formed with a concave groove portion (first guide rail 8) having a horizontal portion on the rear side to the middle portion side and having a curved arc portion on the front side. . Rack teeth are formed from the front end to the rear end of one side (the upper side in this embodiment) of the upper side or the lower side of the first guide rail 8. The first guide rail 8 is located between the outer surface portion of the foot massage device 5 and the inner surface of the leg portion 3.

As shown in FIGS. 1 and 3, the traveling mechanism 9 has a traveling shaft 13 that faces in the left-right direction and includes gears 12 at both ends.
A driving device 14 that drives the traveling shaft 13 to rotate forward and reverse is provided in the middle of the traveling shaft 13 in the left-right direction. The driving device 14 includes an electric motor and a worm gear mechanism, and is configured to transmit the rotational driving force of the electric motor to the traveling shaft 13.
The traveling shaft 13 is bridged below the seat 2 so as to face in the left-right direction, and the gears 12 provided at both ends of the traveling shaft 13 are fitted into the first guide rail 8 and meshed with the upper rack teeth. It has become. When the electric motor of the driving device 14 rotates and drives the traveling shaft 13, the gear 12 moves on the rack teeth, and the traveling mechanism 9 is movable in the front-rear direction along the first guide rail 8.

The travel mechanism 9 is arranged in parallel with the travel shaft 13 and is pivotally supported on the base end side of the first rod body 10 so that both ends of the travel mechanism 9 are slidably moved in the first guide rail 8. have. The end portion of the guide shaft 15 slides on the other side (the lower side in the case of the present embodiment) of the upper side or the lower side of the first guide rail 8.
A long first rod body 10 is disposed inside each of the pair of left and right guide rail forming portions 11, 11 so as to face in the front-rear direction, and the traveling shaft described above is disposed at the base end portion of the first rod body 10. 13. Both end portions of the guide shaft 15 are pivotally supported.

  As described above, the traveling shaft 13 and the guide shaft 15, that is, the two rod bodies enter the first guide rail 8, and the traveling shaft 13 and the guide shaft 15 are fitted to the proximal end of the first rod body 10. The first rod body 10 can move along the first guide rail 8 without swinging or swinging. Since the rack teeth are formed on the upper side of the first guide rail 8, the meshing state between the gear 12 and the rack teeth is always good, and the foot kneading device 5 can be smoothly inserted and removed. If the rack teeth are formed on the lower side of the first guide rail 8, the gear 12 may bite into the rack teeth and not rotate due to the load of the foot grinder 5, but this situation can be avoided reliably. It has become.

On the other hand, the front end portion of each first rod body 10 is connected to the upper part of the rear portion side of the foot massaging device 5 so as to be rotatable about the left and right axis (the pivot shaft 16).
A support member 17 that supports the foot massage device 5 is provided along the rear surface 5b on the rear surface 5b of the foot massage device 5 (on the side opposite to the massage surface 5a). The support member 17 is configured by assembling four square steel materials into a rectangular shape. Below the support member 17, a pair of rolling wheels 18 and 18 that roll on the floor surface F are provided. The rolling wheel 18 can roll on the floor F where the massage chair 1 is installed. At the upper end of the support member 17, the upper part of the rear side of the foot massaging device 5 is pivotally supported so as to be rotatable around the left and right axis.

In the case of the present embodiment, the upper part of the foot massaging device 5 and the front end of the first rod body 10 are pivotally supported around the pivot shaft 16 at the upper end of the support member 17.
A support shaft 19 that faces in the left-right direction is provided in the middle part of the support member 17, and a middle part of the operation link 20 that faces in the front-rear direction is pivotally supported by the support shaft 19. The operation link 20 is rotatable around the support shaft 19.
The operation link 20 is configured by assembling at least four square steel materials into a rectangular shape, and is sized to fit into the support member 17.

The front end portion of the operating link 20 (the horizontal member 20b on the front side which is spanned between the vertical members 20a and 20a constituting the operating link 20) comes into contact with the rear surface 5b of the foot massaging device 5. ing. In this portion, a roller member 21 is provided for smooth sliding of the foot kneading device 5 with respect to the operation link 20.
At the rear end of the operating link 20 (the horizontal member 20c on the rear side spanned between the vertical members 20a and 20a constituting the operating link 20), the front end of the connecting link 22 rotates. Connected freely. The connecting link 22 is arranged to face in the front-rear direction.

On the other hand, a rail body 23 facing the front-rear direction is provided on the fixed portion 26 below the seat portion 2. The front end portion of the rail body 23 is located below the front portion of the seat portion 2, and the rear end portion of the rail body 23 is located below the rear portion of the seat portion 2. The rail body 23 is provided with a moving body 24 that slides on the rail body 23.
The outer shape of the moving body 24 is a rectangular parallelepiped shape, and the rear end portion of the connecting link 22 is connected to the upper side of the moving body 24 so as to be rotatable about the left-right axis.
An operation mode of the foot kneading device 5 having the above-described mechanism will be described.

First, as shown in FIG. 4, when the foot kneading device 5 is in the storage position P, the foot kneading device 5 has the bottom surface 5c facing forward and is flush with the front edge of the seat 2 and the lower limb. The surface 5a for massaging is directed upward. In this state, the traveling mechanism 9 is located on the rear side, that is, the horizontal portion of the first guide rail 8, and the pivot shaft 16 is located at a lower position than the center portion of the foot massage device 5.
From this state, when the electric motor of the drive device 14 rotates forward to drive the traveling shaft 13, the gear 12 moves on the rack teeth, and the traveling mechanism 9 moves forward along the first guide rail 8. And the foot kneading device 5 is pushed forward of the seat portion 2 through the first rod body 10 (from the state of FIG. 4A to the state of FIG. 4B). At this time, since the rolling wheels 18 roll on the floor surface F, the foot kneading device 5 moves smoothly.

  Thereafter, as shown in FIG. 4C, when the traveling mechanism 9 moves to the rear side of the arc portion of the first guide rail 8 (also referred to as the rear arc portion 25b), the foot grinder 5 is in the use position (downward). It is located at the use position U1). When the foot massage device 5 is located at the lower use position U <b> 1, the first rod body 10 is inclined forward and obliquely upward, and the pivot shaft 16 is located higher than the center portion of the foot massage device 5. The foot massage device 5 in the lower use position U1 has a bottom surface 5c facing the floor surface F and a surface 5a for massaging the lower limbs facing forward. The user can insert a lower limb into the pair of left and right holding grooves 6 and 6 of the foot massage device 5 at this position, and can receive a massage by a lower limb massage mechanism.

As shown in FIG. 4D, when the traveling mechanism 9 moves to the front side of the arc portion of the first guide rail 8 (also referred to as the front arc portion 25a), the upper end portion of the support member 17 and the foot massage device. The upper end of 5 is pushed further forward. Accordingly, the rolling wheel 18 provided at the lower end portion of the support member 17 rolls on the floor surface F, and the lower end portion of the support member 17 also approaches forward.
At this time, the moving body 24 is positioned at the foremost end of the rail body 23 and cannot move any further. Therefore, the connecting link 22 pivotally supported by the moving body 24 does not move forward. Therefore, as the support member 17 moves forward, the operation link 20 connected to the connection link 22 is pulled rearward and turned so as to face the horizontal direction, and the front end portion of the operation link 20 passes through the roller member 21. Thus, the rear surface 5b of the foot kneading device 5 is pushed upward.

By the pushing-up operation by the operation link 20, the position of the foot massaging device 5 is switched from the lower use position U1 to the upper use position U2. When the foot massage device 5 is located at the upper use position U2, the bottom surface 5c of the foot massage device 5 moves to a position higher than the lower use position U1. By inserting the lower limbs into the pair of left and right holding grooves 6 and 6 of the foot massage device 5 at this position, the user can receive a lower limb massage with a more comfortable posture.
When retracting the foot massaging device 5, the electric motor is reversely rotated and the traveling mechanism 9 is moved rearward along the first guide rail 8, so that FIG. 4 (d) → FIG. 4 (c) → FIG. b) → As shown in FIG. 4A, the foot kneading device 5 can be stored in the storage space provided below the seat portion 2 via the first rod body 10. When the foot massage device 5 is brought to the storage position P, the bottom surface 5c of the foot massage device 5 does not protrude from the front end of the seat portion 2, so that the user sits on the massage chair 1 The “non-user” can take an easy posture and the appearance of the massage chair 1 is also very good.

At this time, since the reclining mechanism 38 is provided on the lower right side of the seating surface, the reclining mechanism 38 enters into one of the holding grooves 6 (right holding groove), and the drive device 14 is on the traveling shaft 13. Therefore, the reclining mechanism 38, the foot kneading device 5, and the driving device 14 do not interfere with each other when the foot kneading device 5 moves to the storage position P, so that the foot kneading device 5 is securely seated. 2 is stored below.
In addition, when switching the posture of the foot kneading device 5 between the upper use position U2 and the lower use position U1, the electric motor is rotated forward or backward, as shown in FIGS. 4 (d) to 4 (c). The traveling mechanism 9 may be moved between the front arc portion 25a and the rear arc portion 25b of the first guide rail 8.

In the massage chair 1 of the present embodiment, sensor means 27 including a limit switch is provided on the front end side of the seat portion 2 and in the holding groove 6. Even if the user puts his / her foot in the foot grinder 5 and stores the foot grinder 5 in the storage position P, the user's foot causes the sensor means 27 to react, and a signal from the sensor means 27 is received. On the basis of this, it is possible to stop the retraction of the foot massaging device 5.
Thereby, it is possible to surely prevent an unfavorable situation such as hurting the user's lower limb.
[Second Embodiment]
FIGS. 5-8 shows 2nd Embodiment of the massage chair which can incorporate the foot massage apparatus which concerns on this invention.

This embodiment is different from the first embodiment in that as a part of the advancing / retreating mechanism 7, the switching between the lower use position U <b> 1 and the upper use position U <b> 2 of the foot grinder 5 is smoothly performed below the seat portion 2. The auxiliary mechanism 30 is provided. In other respects, they have substantially the same configuration.
In 1st Embodiment, the operation | movement aspect of the massage chair 1 of this invention was demonstrated. That is, as shown in FIG. 4 (c) → FIG. 4 (d), the rolling wheel 18 provided at the lower end portion of the support member 17 rolls on the floor F, and the lower end portion of the support member 17 also moves forward. Thus, it has been described that the front end portion of the operating link 20 pushes up the rear surface 5b of the foot grinder 5 via the roller member 21 and the foot grinder 5 is switched to the upper use position U2.

However, the floor F on which the massage chair 1 is actually installed is often in a situation where the rolling wheels 18 are difficult to roll, such as tatami mats or carpets. In that case, since the rolling wheel 18 is difficult to roll, the possibility that the support member 17 does not move forward and the seat portion 2 is lifted upward can be denied.
However, in this embodiment, since the switching assist mechanism 30 is adopted, the rolling wheel 18 of the support member 17 is smoothly rolled, and the lower use position U1 and the upper use position U2 of the foot massage device 5 are Can be reliably switched.

The switching assist mechanism 30 has a second guide rail 31 installed so as to face the front-rear direction below the seat portion 2. The second guide rail 31 is provided on the inner surface of the guide rail forming portion 11 provided on the right leg 3, and is provided above the first guide rail 8. The second guide rail 31 is a concave groove formed in the guide rail forming portion 11, the rear side is a horizontal portion, and the front side is convex upward.
A rear end portion of a second rod body 32 that has a crescent shape and faces in the front-rear direction is slidably fitted into the second guide rail 31. The second rod body 32 is disposed on the inner side (closer to the foot massage device 5) than the second guide rail 31 in the width direction, and a projecting pin 33 facing outward in the width direction is provided at the rear end portion of the second rod body 32. The protruding pin 33 is slidably fitted in the second guide rail 31.

A front end portion of the second rod body 32 is fitted to the pivot shaft 16 so as to be rotatable coaxially from the outer side in the width direction of the first rod body 10.
On the other hand, a fan-shaped engagement member 34 formed of a plate member is in contact with the inner side in the width direction (between the foot massage device 5 and the first rod body 10) at the front end portion of the first rod body 10. They are arranged so that they can slide and rotate with each other. The engaging member 34 is attached to the upper end of the support member 17 so as not to be relatively movable. An arcuate engagement groove 35 that faces in the up-down direction is provided at the peripheral edge of the engagement member 34. A pin member 36 projecting so as to face the inner side in the width direction is slidably fitted into the engagement groove 35 in the middle portion of the second rod body 32.

A spring body 37 is provided between the protruding pin 33 and the guide shaft 15, and a biasing force is applied between the both 33 and 15. Thereby, the sliding of the 2nd rod body 32 with respect to the 2nd guide rail 31 becomes smooth.
An operation mode of the foot kneading device 5 having the above-described mechanism will be described.
First, as shown in FIG. 7 (a), when the foot gripping device 5 is in the storage position P, the foot gripping device 5 is flush with the front edge of the seat portion 2 while its bottom surface 5c faces forward. And the surface 5a for massaging the lower limbs is directed upward. In this state, the traveling mechanism 9 is located on the rear side of the first guide rail 8, that is, on the horizontal portion.

From this state, the electric motor of the driving device 14 rotates forward to drive the traveling shaft 13, so that the traveling mechanism 9 moves forward along the first guide rail 8 and passes through the first rod body 10. The kneading device 5 is pushed forward of the seat 2 (FIG. 7 (a) → FIG. 7 (b)). At this time, the rear end portion of the second rod body 32 also moves forward along the second guide rail 31. The pin member 36 provided in the second rod body 32 is such that the pin member 36 is located at the upper end portion of the engagement groove 35 of the engagement member 34.
As shown in FIG. 7C, when the traveling mechanism 9 moves to the rear arc portion 25b of the first guide rail 8, the foot kneading device 5 is positioned at the lower use position U1. When the foot massaging device 5 is located at the lower use position U1, the pin member 36 provided at the front end portion of the second rod body 32 has the pin member 36 at the lower end portion of the engagement groove 35 of the engagement member 34. It is supposed to be located. The pin member 36 slides from the upper end portion of the engagement groove 35 to the lower end portion at the boundary point A where the rear end portion of the second rod body 32 changes from the horizontal portion of the second guide rail 31 to the convex arc portion. Moving.

  Thereafter, as shown in FIG. 7C → FIG. 7D, when the traveling mechanism 9 moves to the front arc portion 25 a of the first guide rail 8, the upper end portion of the support member 17 and the upper end portion of the foot kneading device 5 are It is pushed forward further. The rolling wheel 18 provided at the lower end portion of the support member 17 rolls on the floor surface F, and the lower end portion of the support member 17 also moves forward. At that time, the rear end portion of the second rod body 32 moves so as to move downward along the arc portion of the second guard rail (vertex B → front side of the arc portion). In conjunction with the movement, the pin member 36 provided in the middle part of the second rod body 32 presses the engaging member 34 downward via the engaging groove 35 and brings the rolling wheel 18 of the support member 17 forward. Move. In other words, when the foot massaging device 5 switches from the lower use position U1 to the upper use position U2, the rear end portion of the second rod body 32 faces the front side of the arc portion of the second guide rail 31 forward. The second rod body 32, specifically the pin member 36, presses the lower side of the engagement groove 35 while sliding, so that the support member 17 is pressed downward, and the lifting of the seat portion 2 is suppressed.

As a result, the support member 17 smoothly moves forward, and as a result, the foot massaging device 5 transitions from the state shown in FIG. 7C to the state shown in FIG.
Further, when the traveling mechanism 9 moves to the foremost end portion of the front arc portion 25 a of the first guide rail 8, the rear end portion of the second rod body 32 advances to the foremost end of the front arc portion 25 a of the second guide rail 31. The foot massaging device 5 moves as shown in FIG. 7 (d) → FIG. 7 (e), and its state changes to the upper use position U2.
When retracting the foot massaging device 5, the electric motor is reversely rotated, and the traveling mechanism 9 is moved rearward along the first guide rail 8, so that FIG. 7 (e) → FIG. 7 (d) → FIG. c) → FIG. 7 (b) → FIG. 7 (a), the foot kneading device 5 can be stored in the storage space provided below the seat portion 2 via the first rod body 10.

As in the first embodiment, when the posture of the foot massaging device 5 is switched between the upper use position U2 and the lower use position U1, the electric motor is rotated forward or reverse, and FIG. 7 (c), the travel mechanism 9 may be moved between the front arc portion 25a and the rear arc portion 25b of the first guide rail 8.
As mentioned above, the massage chair which can accommodate the foot massage apparatus according to the present invention is not limited to the above-described embodiment.
In the second embodiment, the configuration in which the switching auxiliary mechanism 30 is arranged on the right leg 3 is illustrated, but may be arranged on the left side, and the switching auxiliary mechanism 30 may be arranged on each of the pair of left and right legs 3, 3. May be provided.

  The present invention can be applied to a foot massage device attached to a massage chair, and can also be applied to a sofa, a vehicle seat, and the like.

It is the left view which showed the inside of the massage chair which concerns on 1st Embodiment (storage position). It is the front view which showed the inside of the massage chair which concerns on 1st Embodiment. It is the left view which showed the inside of the massage chair which concerns on 1st Embodiment (upward use position). It is the figure which showed the condition where the foot massage apparatus which concerns on 1st Embodiment changes from a storage position to a use position. It is the left view which showed the inside of the massage chair which concerns on 2nd Embodiment (storage position). It is the front view which showed the inside of the massage chair which concerns on 2nd Embodiment. It is the figure which showed the condition where the foot massage apparatus which concerns on 2nd Embodiment changes from a storage position to a use position. It is a disassembled perspective view of the massage chair which concerns on 2nd Embodiment. It is a perspective view of a massage chair.

Explanation of symbols

1 massage chair 2 seat 3 leg (seat support)
DESCRIPTION OF SYMBOLS 4 Backrest part 5 Footrest device 7 Advance / retreat mechanism 8 1st guide rail 9 Traveling mechanism 10 1st rod body 13 Traveling shaft 17 Support member 18 Rolling wheel 20 Actuation link 21 Roller member 22 Connection link 23 Rail body 24 Moving body 27 Sensor means 30 switching assist mechanism 31 second guide rail 32 second rod body 33 protruding pin 34 engagement member 35 engagement groove 36 pin member F floor surface P storage position U1 lower use position U2 upper use position

Claims (11)

In a massage chair having a seat, a backrest provided at the rear of the seat, and a foot massage device installed at the front of the seat,
An advance / retreat mechanism connected to the foot grinder is provided below the seat,
When the advance / retreat mechanism advances forward, the foot massage device advances to the use position, which is a position where the lower leg of the user can be massaged in front of the seat, and when the advance / retreat mechanism retracts backward, the foot massage device moves to the seat. Stored in the storage position formed below the unit,
The advancing / retreating mechanism is characterized in that the foot kneading device in the use position can be switched between two positions, a lower use position where the tip end is downward and an upper use position where the tip end is upward. Massage chair with foot massage device. The foot massage device in the lower use position is in a state where the bottom surface faces the floor surface and the surface for massaging the lower limbs faces the front,
The foot massaging device in the upper use position is in a state in which the surface for massaging the lower limb is directed obliquely upward,
The foot massaging device in the storage position has a bottom surface facing forward, a front edge portion of the seat portion, and a surface for massaging the lower limbs facing upward. A massage chair provided with the foot massage device described in 1. The advancing / retracting mechanism is installed below the seat part, has a horizontal part on the rear side, and has a curved part on the front part side, and is movable along the first guide rail. A traveling mechanism, a first rod body attached to the traveling mechanism in a forward projecting manner, and a link mechanism disposed at the rear of the foot massage device,
The front end portion of the first rod body and the upper end portion of the link mechanism are coaxially connected to the rear side upper portion of the foot massage device so as to be rotatable about the left and right axis,
When the travel mechanism moves to the horizontal portion of the first guide rail, the foot massage device is located at the storage position,
When the traveling mechanism is an arc portion of the first guide rail and moves to the rear side, the foot kneading device is located at the lower use position,
The structure is such that when the travel mechanism is an arc portion of the first guide rail and moves to the front side thereof, the link mechanism is activated to set the foot grinder to the upper use position. A massage chair comprising the foot massage device according to 2. The link mechanism includes a support member provided with a rolling wheel at a lower end portion and an upper end portion rotatably connected to the upper portion on the rear side of the foot grip device coaxially with the first rod body,
An actuating link provided in a midway part of the support member so as to be rotatable about a left-right axis, and a front end part pushing up a rear surface of the foot massage device;
A connecting link having a front end connected to a rear end of the operating link;
A moving body that is connected to the rear end portion of the connecting link so as to be rotatable about a left-right axis and moves in the front-rear direction below the seat portion;
When the traveling mechanism is an arc portion of the first guide rail and moves to the front side thereof, the forward movement of the moving body is restricted, and the rear end portion of the operating link is pulled backward via the connection link. The movable body, the connecting link, and the operating link are connected so that the operating link rotates with respect to the support member and the front end of the operating link pushes up the rear portion of the footgrip device. The massage chair provided with the foot massage apparatus of Claim 3 characterized by the above-mentioned. The travel mechanism includes a travel shaft that is pivotably supported on the base end side of the first rod body and that has a gear on both ends, and a drive device that rotationally drives the travel shaft. And
On the upper side of the first guide rail, rack teeth are provided for meshing with the gear of the traveling shaft,
4. The gear according to claim 3, wherein the driving device rotationally drives the traveling shaft so that the gear moves on the rack teeth and the traveling mechanism is movable in the front-rear direction along the first guide rail. A massage chair comprising the foot massage device according to 4.   The travel mechanism has a guide shaft that is arranged in parallel to the travel shaft, is pivotally supported on the base end side of the first rod body, and both ends move along the first guide rail. A massage chair comprising the foot massage device according to claim 5. The advance / retreat mechanism has a switching assist mechanism that smoothly switches between the lower use position and the upper use position of the foot massage device,
The auxiliary switching mechanism is provided below the seat portion, and has a second guide rail having a horizontal portion on the rear side and a convex arc portion on the front side, and a rear end portion of the second guide rail. A second rod body which is movable along the front end and engages with the upper part of the support member,
When the foot kneading device switches from the lower use position to the upper use position, as the rear end portion of the second rod body slides forward on the front side of the arc portion of the second guide rail, The massage chair provided with the foot massage device according to any one of claims 3 to 6, wherein a front end portion or a midway portion of the second rod body is configured to press the support member downward. . An engagement member is provided on the rear side upper part of the foot massage device, and the engagement member is provided with an arcuate engagement groove facing upward and downward, and the engagement groove is provided in the middle of the second rod body. The pin member provided in the part is slidably fitted,
As the rear end portion of the second rod body slides forward on the front side of the arc portion of the second guide rail, the pin member pushes the lower end portion of the engagement groove, and the support member moves downward. It is comprised so that it may be pressed by, The massage chair provided with the foot massage apparatus of Claim 7 characterized by the above-mentioned. The seat portion has a pair of seat support portions that support the seat portion from the left and right.
9. The foot massage device according to claim 7, wherein the first guide rail and the second guard rail are provided between an outer surface of the foot massage device and an inner surface of the seat support portion. Massage chair equipped with.   The massage chair provided with a foot massage device according to any one of claims 7 to 9, wherein the second guide rail is provided above the first guide rail.   Sensor means for detecting the presence of a user's lower limb in the footpad device when the footpad device is moved to the storage position is provided in the front portion of the seat and / or the footpad device. The massage chair provided with the foot massage apparatus in any one of Claims 1-10 characterized by the above-mentioned.

Images