JP2010131248A - Massaging chair equipped with foot massaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve further simplification of a structure and reduction in weight and cost at once, and to enable a user to keep a relaxed posture to sprawl feet out forward in using a foot massaging device in a massaging chair equipped with a seat part, a backrest, and the foot massaging device provided in the front part of the seat part. <P>SOLUTION: An advancing and retreating mechanism 15 continuously connected to the foot massaging device 5 is provided below the seat part. When the mechanism 15 makes an advancing movement to the front, the foot massaging device 5 floats in midair from a floor surface in the front of the seat part and proceeds to a using position U being a position to massage a lower limb of the user. When the mechanism 15 makes a retreating movement to the back, the foot massaging device 5 is housed in a housing position P formed below the seat part. Further, a rotation angle limiting member 50 which prevents an angle formed with a link 20 and the foot massaging device 5 from being a prescribed angle θ or smaller is provided at a connecting part between the foot massaging device 5 and the link 20 which is connected to the foot massaging device 5 for rocking the foot massaging device forward and backward. <P>COPYRIGHT: (C)2010,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 even if the massage function is not used, the lower limb must be fitted into the holding groove, 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 (massage surface) and the rear surface (foot rest surface) of the foot massage device can be freely switched.
JP 2002-238963 A JP 2007-75590 A

However, the configuration employing the guide rail requires high precision and careful processing in that a smooth bend is formed on the guide rail, and has a feature that it is difficult to reduce the manufacturing cost.
In addition, due to the occurrence of sliding resistance against the guide rail, strong driving is required, but on the other hand, it is necessary to devise measures to suppress driving noise and vibration. There was room for improvement, such as increasing the burden.
As another need, when using a foot massage device, there is a desire to take a relaxed posture (a posture with the knee extended as much as possible) such that the user throws the foot forward.

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a massage chair that can solve the simplification, weight reduction, and cost reduction of the structure at once. In addition, an object of the present invention is to provide a massage chair in which a user can take a relaxed posture such as extending his / her legs forward when using a foot massage device, thereby enhancing the feeling of use. 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. When the advancing / retreating mechanism is provided below the seat portion and connected to the footrest device, and the advancing / retreating mechanism moves forward, the footgrip device floats above the floor surface in front of the seat portion and lifts the user's lower limb. When the advancing / retreating mechanism moves backward, the foot massaging device is housed in a housing position formed below the seat portion when it moves to a use position that is a massageable position.

Specifically, the foot grinder in the use position has a back surface facing the floor and a bottom surface facing forward, and the foot grinder in the storage position has a bottom surface facing forward. It is in a state where it is substantially flush with the front end of the seat and the front of the lower limb is massaged upward.
The advancing and retreating mechanism is an advance operation for bringing the foot grinder to the use position by raising the back upper part of the foot grinder in the storage position forward from the front end of the seat or in the middle of the advance. It is configured to perform a retreat operation for returning the foot grinder to the storage position by lowering the back upper portion until the front upper portion of the foot grinder in the use position is lower than the seat lower portion, and then retreating downward to the seat portion. can do.

  Specifically, the advancing / retreating mechanism is connected between a stationary pivot provided at the lower portion of the seat and a movable pivot provided at the upper back of the foot grinder so that the movable pivot is moved forward and backward with the stationary pivot as a fulcrum. A link that is swingably held, a swing drive unit that applies a driving force for swinging back and forth with respect to the link, and a roll that is provided at the lower back end of the foot grinder so as to be movable on the floor. When the link swings to the rear side of the swinging area of the link, the foot grinder moves to the storage position, and the link swings to the front side of the swinging area of the link. Then, it is possible to configure the foot massage device to move to the use position.

A rotation angle limiting member for preventing an angle between the link and the foot massage device from being equal to or less than a predetermined angle is provided at a connecting portion between the moving pivot portion of the foot massage device and the link. It is preferable that the angle is set so that the foot massaging device is not in contact with the floor surface at the use position of the foot massaging device.
For example, the rotation angle limiting member is a pin member that is parallel to a rotation axis that rotatably connects the movement pivot support portion of the foot massage device and the link, and the pin member is a link and a movement pivot. It is good to arrange | position at a link and / or a mobile pivot so that it may be pinched | interposed with a branch.

In this case, it is assumed that the link is formed of a single member that connects a stationary pivot portion provided at the center portion in the left-right direction of the seat portion and a movable pivot portion provided at the center portion in the left-right direction of the foot massage device. Is preferred.
Furthermore, it is preferable that the link is formed in a shape that curves in a C-shaped side view along the top from the front upper part of the foot gripping device when the foot gripping device is located at the storage position. .
The swing drive part of the advance / retreat mechanism may have an expansion / contraction mechanism driven by an electric motor.

The advancing / retracting mechanism may include a forward projecting mechanism that allows the foot kneading device in the use position to project forward while being in a floating state.
Specifically, the forward projecting mechanism has a slide mechanism at the front end portion of the link that allows the foot gripping device to slide in the front-rear direction, and the slide mechanism biases the foot gripping device backward. A member may be provided.

  According to the massage chair according to the present invention, further simplification, weight reduction, and cost reduction of the structure can be solved at a stretch. In addition to the massage chair according to the present invention, when the foot massage device is used, the user can take a relaxed posture by throwing his / her foot forward to enhance the feeling of use.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-12 has shown one Embodiment of the massage chair 1 which concerns on this invention. FIG. 12 is an overall external view, and in other drawings, a part of the structure is omitted as necessary for convenience of explanation.
The massage chair 1 has a seat portion 2 and a backrest portion 3 provided at the rear portion of the seat portion 2, and a lower limb of a user seated on the seat portion 2 is located at the front portion of the seat portion 2. A foot massaging device 5 for massaging (especially calves) is provided.

As shown in FIGS. 1 and 2, a leg frame 6 for installing the massage chair 1 on the floor surface F is provided at the lower portion of the seat 2, and the seat 2 is predetermined by the leg frame 6. Being supported by height.
Further, armrests 7 are provided so as to sandwich both sides of the seat portion 2 (see FIG. 12), and the leg frames 6 are hidden by these armrests 7 so that they cannot be seen from the outside.
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. The lower part of the backrest part 3 is pivotally supported so that it can swing back and forth with respect to the rear part of the seat part 2 or the rear part of the leg frame 6. The backrest 3 can be reclined by a reclining mechanism (not shown) such as a linear actuator mechanism disposed in the leg frame 6.
Inside the backrest 3, a back massage mechanism (not shown) that performs massage operations such as squeezing, striking, or vibrating is provided so as to be movable up and down.
The foot massage device 5 has a substantially square shape when viewed from the front, and a box shape that exhibits a rounded triangular shape when viewed from the side. A pair of left and right holding grooves 10, 10 that allow the user's lower limbs (left and right feet) to be fitted are formed in front of the foot massage device 5.

A massage device for the lower limb that massages the lower limbs is incorporated in the inner facing surfaces of the holding grooves 10 (both sides that sandwich one of the inserted legs). This lower limb massage device is configured to itch by swinging a plate that is long in the length direction of the foot left and right, or to be squeezed with an air bag that expands and contracts by air supply and discharge. Can do.
The foot massaging device 5 is lifted from the floor F in front of the seat 2 and can be used to massage the user's lower limbs (see FIG. 2), and a storage position P formed below the seat 2. (Refer to FIG. 1).

That is, an advance / retreat mechanism 15 is provided below the seat portion 2 (inside the leg frame 6), and the seat portion 2 side (leg frame 6) and the foot kneading device 5 are connected via the advance / retreat mechanism 15. It becomes the composition which is done. When the advance / retreat mechanism 15 moves forward, the foot kneading device 5 advances to the use position U, and when the advance / retreat mechanism 15 moves backward, the foot kneading device 5 is stored in the storage position P. It has become a thing.
6 shows the storage state (storage position P) of the foot massage device 5, FIG. 10 shows the use state (use position U) of the foot massage device 5, and FIGS. 7 to 9 show switching between the storage state and the use state. Is shown (halfway state). As is clear from FIGS. 6 to 10, the advance / retreat mechanism 15 includes a link 20, a swing drive unit 21, and rolling wheels 22.

In addition, when moving the installation place of this massage chair 1 as a whole to the leg frame 6 which supports the seat part 2, in order to be able to move lightly, a floor surface installation part (foot massage device 5) is used. A pair of left and right moving wheels 23 are provided with respect to the rear end of the bottom surface. In addition, when the massage chair 1 is not used, such as when the massage chair 1 is not moved, the moving wheels 23 are lifted from the floor surface F, and are placed at four locations on the front, rear, left and right of the floor surface installation portion in order to maintain the installation stability. A member 24 is provided.
The flooring member 24 is preferably formed of hard rubber or the like that has both vibration absorption and resistance to slipping on the floor surface F. When the installation location of the massage chair 1 is moved, the entire chair is tilted backward (the chair front part is lifted) so that only the left and right moving wheels 23 are pressed against the floor surface F, and all the landing members 24 are thus moved. May be moved while rolling the moving wheel 23 so as to move away from the floor surface F.

On the other hand, the foot massaging device 5 is supported by the moving frame 28 in which the bottom support frame 26 and the back support frame 27 are assembled so as to exhibit an L shape in a side view so that the rigidity of the entire device is maintained.
The link 20 is provided at a stationary pivotal support portion 32 provided at a lower portion of the seat portion 2 (upper side in the leg frame 6) and a movement provided at a rear upper portion of the foot massage device 5 (upper portion of the rear support frame 27 in the moving frame 28). It is connected between the pivot 33.
The stationary pivot portion 32 and the movable pivot portion 33 are configured to hold the link 20 so as to be relatively rotatable around a pivot axis whose axis is directed in the left-right direction. Therefore, from the viewpoint that the foot massaging device 5 operates with respect to the seat portion 2, the link 20 is configured such that the movable pivot portion 33 is swingable in the front-rear direction with the stationary pivot portion 32 as a fulcrum. is there.

As shown in FIGS. 3 to 5, the stationary pivot part 32 is provided at the center part in the left-right direction of the seat part 2, and the movable pivot part 33 is provided at the center part in the left-right direction of the foot massage device 5. Yes. Accordingly, the link 20 that connects the stationary pivot portion 32 and the movable pivot portion 33 is formed by only one.
As is clear from FIG. 5, in this embodiment, the link 20 is formed in a highly rigid frame shape by connecting two link-composing rods 34 in parallel in the left-right direction at a predetermined interval and connecting them together. . The number of the link configuration rods 34 is not particularly limited, but a single link 20 is provided as a structure in which the entirety is assembled in a frame shape. That is, the link 20 is composed of a single bar member.

Further, the link 20 is formed in a shape that curves in a side view C-shape. That is, when the foot massaging device 5 is described as being in the storage position P below the seat portion 2 (the state of FIG. 6), the link 20 is once extended backward from the stationary pivot portion 32, and thereafter The foot kneading device 5 is U-turned downward so as to go around from the upper front to the upper rear side through the top, and further extends forward and then reaches the moving pivot 33.
As shown in FIG. 6, when considering a virtual circle D having a maximum radius R that is a straight line connected from the axial center of the stationary pivot 32 to the floor surface F, the link 20 is centered on the stationary pivot 32. The size of the imaginary circle D is such that it is entirely within the range of the virtual circle D. Therefore, even if the link 20 swings back and forth around the stationary pivot 32, the link 20 does not contact the floor surface F.

The link 20 is located behind the movable swing range when the foot massage device 5 is located at the storage position P (FIG. 6), and is movable when the foot massage device 5 is located at the use position U (FIG. 10). Swing back and forth so as to be in front of the moving range. The movable swing range refers to a region where the link 20 swings when the foot massaging device 5 moves between the storage position P and the use position U.
A rotation angle limiting member 50 is provided at a connecting portion between the moving pivot 33 and the link 20 provided at the upper back of the foot massage device 5.
In the rotation angle limiting member 50, the movement pivot support portion 33 is lifted by the swing of the link 20 forward, and the rear surface of the foot gripping device 5 (back support frame 27 of the foot gripping device 5) and the front end portion of the link 20. When the angle θ reaches a predetermined value, the rolling wheel 22 (in short, the entire foot massaging device 5) is lifted from the floor F while maintaining the angle θ.

Here, the predetermined angle θ is a form in which the front surface of the foot grinder 5 is in a horizontal state (including some steps) that is substantially flush with the upper surface of the seat portion 2 or is connected in a bent state in which the front is lowered. Is feasible.
In other words, as shown in FIG. 9, the rotation angle limiting member 50 is a rotation that rotatably connects the movable support portion 33 and the link 20 at the moment when the rolling wheel 22 is lifted from the floor surface F. Engage with the foot massaging device 5 in front of the position directly below the axis of movement so that the movable pivot 33 and the link 20 do not rotate any further. The rotation angle limiting member 50 is a pin member 50 parallel to a rotation axis that rotatably connects the movable pivot 33 and the link 20. That is, when the pin member 50 is sandwiched between the contact member 50A provided on the back support frame 27 and the link 20, the rotational state of the movable pivot 33 and the link 20 is restricted, and the angle θ is fixed. Is done.

In this embodiment, as is clear from FIG. 5 (B), a single pin shaft is installed between the two link construction rods 34 constituting the link 20. However, the present invention is not limited to this, and two pins may be provided so as to protrude from each link construction rod 34, or only one of them may be provided. There is no problem even if the contact member 50A is provided on the link 20 side and the pin member 50 is provided on the back support frame 27 side of the foot kneading device 5.
The swing drive unit 21 applies a driving force for swinging back and forth with respect to the link 20. In this embodiment, the swing drive unit 21 is provided with an expansion / contraction mechanism 36 that performs an expansion / contraction operation using the electric motor 35 as a drive source. . As the expansion / contraction mechanism 36, for example, a mechanism using a screw shaft (such as a ball screw) or a combination mechanism of a rack and a pinion gear can be employed.

A bracket member 38 is provided on a pivot (rotating integrally with the link 20) that rotatably holds the rear end of the link 20 in the stationary pivot support 32 so as to rotate integrally therewith. The front end portion of the expansion / contraction mechanism 36 is connected to the bracket member 38 so as to be relatively rotatable. Further, the rear end portion of the telescopic mechanism 36 is rotatably connected to the vertical flange portion 6 a of the leg frame 6.
The rolling wheel 22 is provided at the lower end of the back surface of the foot massaging device 5, that is, at the corner portion between the bottom surface and the back surface (the connecting portion between the bottom surface support frame 26 and the back surface support frame 27 in the moving frame 28). The top is held movably.

The outer peripheral surface (tire portion) of the rolling wheel 22 is preferably formed of hard rubber or the like that has both vibration absorption and resistance to slippage with respect to the floor surface F.
By the way, as shown in FIG. 11, in this embodiment, the advancing / retreating mechanism 15 has a forward projecting mechanism 60 for projecting the foot kneading device 5 in the use position further forward while floating. The forward projecting mechanism 60 includes a gas pressure cylinder 61 that constantly biases the foot kneading device 5 in the use position toward the rear.
Specifically, the back support frame 27 of the foot massaging device 5 is configured such that the slide outer frame 65 and the slide inner frame 66 are slidably combined with each other. On the other hand, a gas pressure cylinder 61 is arranged. The contact member 50 </ b> A with which the pin member 50 contacts is provided on the upper end portion of the back support frame 27 (the surface close to the link 20 at the upper end portion of the slide inner frame 66).

The gas pressure cylinder 61 is configured to generate an urging force in the extending direction. To counter the urging force of the gas pressure cylinder 61, the foot massaging device 5 is pressed forward with a user's foot or the like, By sliding the frames 65 and 66 with respect to each other and extending the back support frame 27, the foot kneading device 5 is projected forward. On the contrary, both frames 65 and 66 slide in opposite directions by the urging force when the gas pressure cylinder 61 extends, and the length of the back support frame 27 is shortened.
The gas pressure cylinder 61 has a fixing function that can temporarily fix the expansion / contraction amount. By using the fixing function, the positional relationship between the slide outer frame 65 and the slide inner frame 66, that is, the foot The degree of forward protrusion of the kneading device 5 can be stopped at an arbitrary position.

The operation of the fixing function of the gas pressure cylinder 61 is performed by an operation handle provided around the seat 2 and a wire connected from the operation handle to the gas pressure cylinder 61.
Next, the operation of the advance / retreat mechanism 15 configured as described above will be described. First, as shown in FIG. 6, the foot kneading device 5 is in a storage position P below the seat 2. At this time, the bottom surface of the foot massage device 5 is directed forward, the front surface (the surface provided with the holding grooves 10 and 10 into which the user's lower limbs are fitted) is directed upward, and the bottom surface is the front end of the seat portion 2. It is almost flush with the part.
When the electric motor 35 of the swing drive unit 21 is operated, the expansion / contraction mechanism 36 starts to expand. Therefore, the pivot of the stationary support portion 32 starts to rotate at the front end portion (bracket member 38) of the expansion / contraction mechanism 36, with the vertical flange portion 6a of the leg frame 6 connected to the rear end portion of the expansion / contraction mechanism 36 as a support. become.

Accordingly, the link 20 has the movable pivot 33 swinging forward with the stationary pivot 32 as a fulcrum. As a result, as shown in FIG. To move forward. At this time, since the rolling wheels 22 roll on the floor F, the foot kneading device 5 moves smoothly.
As the link 20 swings further forward, the upper part of the back of the foot massaging device 5 starts to rise as shown in FIGS. And if the back upper part of the foot kneading apparatus 5 comes out ahead of the front end lower part of the seat part 2, and the foot kneading apparatus 5 comes to rise as a whole as shown in FIG. Has reached the use position U.

A series of these operations is the advance operation of the advance / retreat mechanism 15. The foot massaging device 5 that has reached the use position U has a back surface facing the floor surface F, the bottom surface facing forward, and a front surface that massages the lower limbs (corresponding to the groove bottoms in the left and right holding grooves 10, 10). It is in a state of facing upward while being connected in a horizontal state or a front-down bent state (see FIG. 2) substantially flush with the upper surface of the portion 2.
If the user operates the lower limb massage mechanism with one foot inserted into the left and right holding grooves 10, 10 with respect to the foot massage device 5, the user can comfortably receive massage. Further, at this time, the foot massaging device 5 ascends as a whole, so that the user can take a relaxed posture such as throwing his legs forward, and it is not necessary to bend the knees extremely, so the feeling of use is improved. It can be enhanced.

In addition, what is necessary is just to make the foot kneading apparatus 5 project forward by the front protrusion mechanism 60, when the foot kneading apparatus 5 in a use position feels cramped with respect to the length of a user's leg. After the foot kneading device 5 is used, the foot kneading device 5 is brought close to the seat 2.
On the other hand, when the electric motor 35 of the swing drive unit 21 is reversely operated from the use position U, the expansion / contraction mechanism 36 starts to contract. Therefore, the pivot of the stationary support portion 32 rotates in the reverse direction with the front end portion (bracket member 38) of the expansion / contraction mechanism 36, with the vertical flange portion 6a of the leg frame 6 connected to the rear end portion of the expansion / contraction mechanism 36 as a support. To start.

Along with this, the link 20 has the movable pivot 33 swinging backward with the stationary pivot 32 as a fulcrum. As a result, as shown in FIG. 9 → FIG. As a whole, it descends and its upper front part sinks downward. As shown in FIG. 7, when the upper back portion is lowered until the front upper portion of the foot kneading device 5 becomes lower than the lower portion of the seat portion 2, the foot kneading device 5 moves backward with the lower portion of the seat portion 2 facing backward. At this time, since the rolling wheels 22 roll on the floor F, the foot kneading device 5 moves smoothly.
Then, as shown in FIG. 6, the foot kneading device 5 is returned to the state stored in the storage position P. A series of these operations is the retreat operation of the advance / retreat mechanism 15.

When the foot massage device 5 is in the storage position P, the bottom surface thereof faces forward and does not protrude from the front end portion of the seat portion 2, so that the “user who does not receive a massage” sitting on the massage chair 1 is comfortable. The body posture can be maintained and the appearance of the massage chair 1 is simple and refreshing.
It should be noted that a sensor such as a limit switch is provided on the upper surface of the seat portion 2 or the holding groove 10 of the foot massage device 5 and the sensor detects the user, or the massage mechanism or the lower limb massage mechanism is It is preferable that the execution of the retreating operation is ignored when there is an operation for causing the advance / retreat mechanism 15 to perform the retreating operation during the operation. By adopting such a configuration, it is possible to reliably prevent an unfavorable situation such as hurting the user's lower limb.

As for the forward protrusion mechanism 60, a sensor such as a limit switch is provided on the back support frame 27, the gas pressure cylinder 61, or the like of the foot gripping device 5, and this sensor detects the forward protrusion state of the foot gripping device 5. When there is an operation for causing the advancing / retreating mechanism 15 to perform the retreating operation when the vehicle is in a retreating state, it is preferable that the execution of the retreating operation is ignored.
By the way, the massage chair 1 which concerns on this invention is not limited to the said embodiment.
For example, it is assumed that the stationary pivot part 32 is provided as a pair (that is, two places) on both the left and right sides of the seat part 2, and the movable pivot part 33 is also provided as a pair (that is, two places) on both the left and right sides of the foot massage device 5. Can be. In this case, a pair of left and right (that is, two) links 20 may be used so as to connect the left stationary pivot 32 and the movable pivot 33 and the right stationary pivot 32 and the movable pivot 33, respectively. Good.

Further, the link 20 is not limited to the C-type in a side view, and can be formed as a straight line.
The swing drive unit 21 can be configured to operate a gear mechanism with an electric motor and thereby swing the link 20 back and forth.
The rotation angle limiting member 50 is not limited to a pin-like object, and its attachment position, engagement partner, and the like are not limited. That is, any structure may be used as long as it forms an engagement structure for floating from the floor surface F while maintaining the foot massaging device 5 at the predetermined angle θ while the link 20 swings forward.

  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 side view which showed one Embodiment of the massage chair which concerns on this invention in a partially internal see-through state. It is the side view shown in the state which moved the foot massage device to the use position from the state of FIG. FIG. 3 is a view as seen from an arrow A in FIG. 2 (a perspective view in a state viewed from below). It is a BB line arrow directional view of FIG. (A) is the perspective view corresponding to FIG. 2, (B) is the perspective view which expanded and showed the vicinity of the rotation angle limiting member. It is the side view which showed the accommodation state of the foot massage device. It is the side view shown as a state which is operating the foot kneading device between a storage state and a use position, and close | similar to a storage state. It is the side view shown as the state which is operating the foot kneading device between a storage state and a use position, and is an intermediate state between a storage state and a use state. It is the side view shown as a state which is operating the foot kneading device between a stowed state and a use position, and is close to a use state. It is the side view which showed the use condition of the foot massage device. (A) is a perspective view of the forward projecting mechanism, and (B) is a schematic diagram illustrating the operation state thereof. It is the perspective view which showed one Embodiment of the massage chair which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Massage chair 2 Seat part 3 Backrest part 5 Foot massage device 15 Advance / retreat mechanism 20 Link 22 Rolling wheel 21 Oscillation drive part 32 Stationary pivot part 33 Movement pivot part 35 Electric motor 36 Telescopic mechanism 50 Rotation angle restriction member (pin member)
60 Forward projection mechanism 61 Gas pressure cylinder F Floor surface P Storage position U 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 moves forward, the foot kneading device floats above the floor in front of the seat and moves to a use position where the user's lower limb can be massaged, and the advance / retreat mechanism retracts backward. Then, the massage chair provided with the foot massage device, wherein the foot massage device is stored in a storage position formed below the seat. The foot massage device in the use position is in a state where the back surface faces the floor surface and the bottom surface faces the front,
The foot massaging device in the storage position is in a state in which the bottom surface thereof faces frontward and the front surface of the seat portion is substantially flush with the front surface for massaging the lower limbs. A massage chair provided with the described foot massage device.   The advancing and retreating mechanism is an advance operation for bringing the foot grinder to the use position by raising the back upper part of the foot grinder in the storage position forward from the front end of the seat or in the middle of the advance. It is configured to perform a retreat operation for returning the foot grinder to the storage position by lowering the back upper portion until the front upper portion of the foot grinder in the use position is lower than the seat lower portion, and then retreating downward to the seat portion. The massage chair provided with the foot massage apparatus of Claim 1 or 2 characterized by the above-mentioned. The advancing / retreating mechanism is connected between a stationary pivot provided at the lower portion of the seat and a movable pivot provided at the upper back of the footgrip device so that the movable pivot can be swung back and forth around the stationary pivot. A link to be held, a rocking drive unit that applies a driving force for rocking back and forth to the link, and a rolling wheel that is provided at the lower end of the back of the foot kneading device and is movably held on the floor surface. Have
When the link swings to the rear side of the swinging area of the link, the foot kneading device moves to the storage position, and when the link swings to the front side of the swinging area of the link, the foot kneading device moves to the use position. The massage chair provided with the foot massage apparatus in any one of Claims 1-3 characterized by the above-mentioned. A rotation angle limiting member for preventing the angle between the link and the foot massaging device from being equal to or less than a predetermined angle is provided at the connecting portion between the movable pivot portion of the foot massaging device and the link.
5. The massage with a foot massage device according to claim 4, wherein the predetermined angle is set to an angle at which the foot massage device is not in contact with the floor surface at the use position of the foot massage device. Chair.   The rotation angle limiting member is a pin member that is parallel to a rotation axis that rotatably connects the moving pivot part and the link of the foot massage device, and the pin member includes a link and a movement pivot part. The massage chair provided with the foot kneading device according to claim 5, wherein the massage chair is disposed on the link and / or the moving pivot so as to be sandwiched between the legs.   The said link is formed with the single member which connects the stationary pivot part provided in the left-right direction center part of a seat part, and the movement pivot part provided in the left-right direction center part of a foot massage apparatus. The massage chair provided with the foot massage apparatus in any one of claim | item 4 -6.   The said link is formed in the shape which curves in the side view C type | mold which follows a top part from the front upper part of a foot kneading device, when the said foot kneading device is located in a storage position. Massage chair provided with the foot massage apparatus in any one of -7.   The massage chair provided with a foot kneading device according to any one of claims 4 to 8, wherein the swing drive portion of the advance / retreat mechanism has an expansion / contraction mechanism driven by an electric motor.   The foot advancement device according to any one of claims 4 to 9, wherein the advance / retreat mechanism includes a front projecting mechanism that allows the foot applicator device in the use position to project forward in a floating state. Massage chair equipped with. The forward projecting mechanism has a slide mechanism at the front end of the link that allows the foot grinder to slide in the front-rear direction.
The massage chair provided with the foot massage device according to claim 10, wherein the slide mechanism includes a biasing member that biases the foot massage device backward.

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