JP5942169B2 - Leg treatment device and massage machine including the leg treatment device - Google Patents

Description

  The present invention relates to a treatment device for massaging a lower leg and a leg, and a massage machine including the leg treatment device.

As a massage machine provided with a leg treatment device that massages the side of the lower leg, the technique described in Patent Document 1 is known.
This type of massage machine includes a seat, a backrest, and a leg treatment device. The leg treatment device includes a lower leg holding body that holds the lower leg and a foot holding body that holds the foot. When this massage machine is not in use, the leg treatment device is folded by rotating the leg treatment device by bringing the foot support body and lower leg support body close to each other so that the massage machine has a simple appearance as a whole. The leg treatment device is accommodated in the seat.

JP 2012-223433 A

  By the way, since there are individual differences in the length of the lower leg, the leg treatment device is required to have a function of moving the foot holder and the lower leg holder away from the seat. However, a technique for smoothly moving the foot holder and the lower leg holder away from the seat has not been proposed.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a leg treatment device that can smoothly move the foot holding body and the lower leg holding body away from the seat, and a massage including the leg treatment device. Is to provide a machine.

  In order to solve the above-described problems, a leg treatment device includes a support frame having a base end portion attached to a seat portion and capable of extending and contracting in an axial direction, and a leg treatment device rotatably attached to a distal end portion of the support frame. A leg holding body that holds the lower leg, and is attached to the foot holding body in a rotatable manner; a first fastening portion disposed on a base end side of the support frame; and the lower leg holding body. A regulating member that couples the arranged second fastening part and regulates the movement range of the crus support so that the shortest path distance between the first fastening part and the second fastening part is less than or equal to a set length. An open state in which the foot holding body and the support frame are separated from each other, the crus holding body is disposed in front of the seat portion, and the support frame is most shortened, and the foot holding body and the support The frame is separated and the lower leg is held Is disposed in front of the seat portion, and the support frame is in the extended state in which the support frame is most extended, and the second fastening portion is provided when the leg treatment device is set in the open state in the crus holder. The second holding part is disposed at a position where the shortest path distance is equal to the length of the restricting member, and the second fastening part is in the process of transitioning from the open state to the extended state. In the case of moving without changing the arrangement relationship with the holding body, the shortest path distance in this transition process is arranged at a position where it is less than or equal to the length of the regulating member.

  If the shortest path distance between the first fastening part and the second fastening part becomes longer than the length of the restricting member in the process of the leg treatment device transitioning from the open state to the extended state, the transition is hindered. On the other hand, in the above configuration, in the crus holder, the second fastening portion is arranged in such a manner that all of the shortest path distances in the transition process are equal to or shorter than the length of the regulating member. For this reason, the leg treatment apparatus can be smoothly shifted from the open state to the extended state. That is, the leg treatment device can smoothly move the foot holder and the lower leg holder away from the seat.

  In the leg treatment device, the second fastening part is positioned higher than the first fastening part when in the open state, and is lower than the first fastening part when in the extended state. It is preferable that the crus support is disposed so as to be positioned.

  In the leg treatment device, when the foot holding body and the support frame are close to each other, the crus holding body is disposed in the seat portion, and the support frame has the most shortened closed state, and is in the closed state. The shortest path distance is preferably equal to the length of the restricting member.

  In the leg treatment device, the shortest path distance when in the open state, the shortest path distance when in the extended state, and the shortest path distance when in the closed state are respectively the lengths of the restriction members. This equal to is preferred.

  In the leg treatment device, the support frame includes a base frame and a slide frame that slides relative to the base frame, and the base frame and the slide frame are biased so as to approach each other. It is preferable.

  The massage machine includes the above-described leg treatment device.

The leg treatment device can smoothly move the leg treatment device away from the seat.
The said massage machine is provided with the leg treatment apparatus which can be kept away from a seat part smoothly.

The perspective view which shows a massage machine typically. The perspective view which shows a part of base frame and leg treatment apparatus. The perspective view which shows the internal structure of a leg treatment apparatus. The perspective view of a leg holder. The perspective view of a leg support body. The perspective view which shows the frame structure of a leg treatment apparatus. Sectional drawing which shows the open state of a leg treatment apparatus. Sectional drawing of the surface sheet of the airbag for legs. The side view which shows one state of the opening operation | movement process of a leg treatment apparatus. The side view which shows one state of the opening operation | movement process of a leg treatment apparatus. The side view which shows one state of the opening operation | movement process of a leg treatment apparatus. The side view which shows one state of the opening operation | movement process of a leg treatment apparatus. The side view which shows one state of the opening operation | movement process of a leg treatment apparatus. The side view which shows one state of the expansion | extension operation | movement process of a leg treatment apparatus. The side view which shows the expansion | extension state of a leg treatment apparatus.

With reference to FIG. 1, the massage machine 1 which concerns on embodiment is demonstrated.
The massage machine 1 includes a seat part 2, a backrest part 3, an armrest 4, and a leg treatment device 10 for massaging a foot and a lower leg.

  In the description of the present embodiment, the lower leg refers to the part from the knee to the ankle, and the foot refers to the part from the lower lower leg (near the heel) to the toe. Moreover, in the massage machine 1, the direction which faces the leg treatment apparatus 10 from the seat part 2 is called the front, and the opposite direction is called back. Moreover, seeing the massage machine 1 from the back, the right hand side direction is the right direction, and the left hand side direction is the left direction.

The seat 2 is a part where the user sits.
Under the seating surface 2a of the seat portion 2, an accommodation chamber 2s for accommodating the leg treatment device 10 is provided.

The backrest part 3 is a part that rests the back of the user.
The backrest 3 is provided behind the seat 2 and is rotatably attached to the seat 2.

  The leg treatment device 10 includes an extendable support frame 11 (see FIG. 2), a foot holder 20 (see FIG. 3), a crus holder 30 (see FIG. 3), a foot massage unit 40, and a crus massage unit. 50 and an air supply / exhaust device 60. The foot holding body 20 and the foot massage unit 40 are accommodated in the foot cover 27. The lower leg holder 30 and the lower leg massage unit 50 are accommodated in the lower leg cover 38.

The foot massage unit 40 includes a pair of foot airbags 41 that massage the feet. The pair of leg airbags 41 are arranged to face each other.
The lower leg massage unit 50 includes a pair of lower leg airbags 51 for massaging the lower leg. The pair of lower leg airbags 51 are arranged to face each other.

  The leg airbag 41 is disposed on each side of the right leg and on each side of the left leg. The lower leg airbag 51 is disposed on each side of the right lower leg and on each side of the left lower leg. The leg airbag 41 and the lower leg airbag 51 are inflated and contracted in conjunction or independently to massage the lower leg.

The airbags 41 and 51 are inflated by supplying air and contracted by discharging air.
The air supply / discharge device 60 supplies air to the airbags 41 and 51 at a predetermined timing, and discharges air from the airbags 41 and 51 at a predetermined timing. The air supply / discharge device 60 is accommodated in the accommodation chamber 2s.

The leg treatment device 10 has a closed state, an open state, and an extended state.
The closed state indicates a state in which the foot holding body 20 rotates to be closest to the support frame 11 and the crus holding body 30 is housed in the housing chamber 2s of the seat 2 (see FIG. 9).

The open state indicates a state in which the foot holding body 20 rotates and is furthest away from the support frame 11, and the crus holding body 30 is disposed in front of the seat portion 2 (see FIG. 13).
The extended state indicates a state in which the support frame 11 is extended in a state where the relationship between the support frame 11, the foot holder 20, and the crus holder 30 is set to an open state (see FIG. 14).

  When the leg treatment device 10 is in the open state and the extended state, the leg airbag 41 and the leg airbag 51 can be used. That is, the user can massage the leg by setting the leg treatment device 10 to the open state and the extended state.

With reference to FIG. 2, the base frame 70 as a framework of the seat portion 2 will be described.
The base frame 70 includes two front frames 71 that are arranged to stand forward and two rear frames 72 that are arranged to stand rearward.

  The front frame 71 and the rear frame 72 constituting the right side surface of the seat portion 2 are connected to each other by two first connection frames 73. Similarly, the front frame 71 and the rear frame 72 constituting the left side surface of the seat portion 2 are connected to each other by two first connection frames 73.

  The two first connection frames 73 arranged on both sides of the upper surface of the seat portion 2 are connected to each other by two second connection frames 74 arranged in parallel in the front-rear direction.

  The two first connection frames 73 arranged on both sides of the lower surface of the seat portion 2 are connected to each other by two second connection frames 74 arranged in parallel to each other in the front-rear direction.

The two first connection frames 73 arranged above and below the right side surface of the seat portion 2 are connected to each other by a third connection frame 75 extending in the vertical direction.
The two first connection frames 73 arranged above and below the left side surface of the seat portion 2 are connected to each other by a third connection frame 75 extending in the vertical direction. Further, the two third connection frames 75 are connected to each other by the reinforcing member 76.

  Of the four second connection frames 74, a frame disposed on the front side and the upper side of the base frame 70 (hereinafter referred to as an upper connection frame 74 a) supports the leg treatment device 10. A rotation mounting bracket 77 for rotatably mounting the leg treatment device 10 is attached to the upper connection frame 74a.

The internal structure 10A of the leg treatment apparatus 10 will be described with reference to FIG.
The internal structure 10A is obtained by removing the foot cover 27, the lower leg cover 38, the foot massage unit 40, and the lower leg massage unit 50 (see FIG. 1) from the leg treatment device 10. That is, the internal structure 10 </ b> A includes the support frame 11, the foot holder 20, and the crus holder 30.

  The base end portion 12 of the support frame 11 is attached to the upper connection frame 74 a of the seat portion 2 via a rotation mounting bracket 77. That is, the support frame 11 rotates about an axis parallel to the upper connection frame 74a as the rotation axis A.

The two support frames 11 are connected to each other by the upper connecting member 14.
A foot holder 20 is rotatably mounted between the tip portions 13 of the two support frames 11. The foot holding body 20 rotates with the axis passing through the distal end portion 13 of each of the two support frames 11 as the rotation axis B.

  An angle of the foot holding body 20 with respect to the support frame 11 (hereinafter referred to as a rotation angle) is set to a predetermined range (for example, 0 degrees to 90 degrees). The rotation angle is defined as an angle between the first plane S1 including the axes of the two support frames 11 and the second plane S2 along the plate portion 23 of the foot holding body 20. Further, the rotation angle when the first plane S1 and the second plane S2 are parallel is defined as 0 degree (see FIG. 9).

  The portion surrounded by the two support frames 11, the upper connecting member 14 that connects them, and the floor surface constitutes an opening 2 e of the accommodation chamber 2 s of the leg treatment device 10. That is, the opening 2 e functions as an entrance for accommodating a part of the leg treatment device 10 (particularly, the lower leg holder 30) in the accommodation chamber 2 s in the seat 2.

The crus holder 30 enters and exits the storage chamber 2s through the opening 2e.
The crus holder 30 is rotatably provided on an arm 24 protruding from the base 21 of the foot holder 20. The crus support 30 rotates about the axis passing through the distal ends 24 a of the two arms 24 as the rotation axis C.

The movement range of the lower leg holder 30 is restricted by the restriction member 80.
That is, the tip 80a of the regulating member 80 is connected to the intermediate wall 36 (see FIG. 5) of the crus holder 30. A base end 80 b of the regulating member 80 is connected to the upper connecting member 14.

  A portion of the upper connecting member 14 to which the restriction member 80 is connected is referred to as a “first fastening portion P1”, and a portion of the crus holder 30 to which the restriction member 80 is connected is referred to as a “second fastening portion P2”. .

  When the regulating member 80 fastens the first fastening part P1 and the second fastening part P2 with the virtual string, the distance at which the length of the virtual string is the shortest (hereinafter referred to as the shortest path distance) is less than the set length. In addition, the movement range of the lower leg holder 30 is restricted. This set length corresponds to the length of the regulating member 80. The regulating member 80 is formed of a non-stretchable member. For example, the regulating member 80 is formed from a resin string, a metal or plastic chain.

The foot holder 20 will be described with reference to FIG.
The foot holding body 20 includes a base portion 21, a plate portion 23 for placing a foot, and an arm 24 for supporting the lower leg holding body 30.

The base 21 is a part including the rotation axis of the foot holder 20 itself.
On both the left and right sides of the base portion 21, grooves 22 into which the distal end portions 13 of the support frame 11 are inserted are provided.

The plate part 23 is formed as a plate-like member extending from the base part 21.
The plate portion 23 is provided with ribs 23a, 23b, and 23c for supporting the foot airbag 41. The three ribs 23a to 23c are arranged at substantially equal intervals.

In the plate part 23, the part 25 between the rib 23a arrange | positioned at the right side and the rib 23b arrange | positioned at the center part functions as a part by which a right leg is arrange | positioned.
In the plate portion 23, a portion 26 between the rib 23c disposed on the left side and the rib 23b disposed on the central portion functions as a portion where the left foot is disposed.

  The arm 24 is provided so as to protrude from both sides of the base portion 21. The arm 24 extends toward the tip of the plate portion 23 and obliquely. When the leg treatment device 10 is opened (see FIG. 3), the arm 24 is such that the tip 24 a of the arm 24 is positioned forward of the seat 2 and above the position of the foot holder 20.

The crus holder 30 will be described with reference to FIG.
The crus holder 30 is provided on the main body 31, the right side wall 35 provided on the right side of the main body 31, the intermediate wall 36 provided on the center of the main body 31, and the left side of the main body 31. Left side wall 37.

The main body 31 supports the right side wall 35, the intermediate wall 36, and the left side wall 37.
The main body portion 31 includes a plate portion 32 that extends to the left and right and step portions 33 and 34 that extend to the left and right.

  Each of the right side wall 35, the intermediate wall 36, and the left side wall 37 includes a base portion 35b, 36b, 37b extending perpendicularly to the plate portion 32, and an extension portion 35e, 36e, 37e extending from the base portion 35b, 36b, 37b. Have And, when the leg treatment device 10 is set in the open state (see FIG. 3), the lower leg holder 30 has the main body portion 31 closer to the seat portion 2, and the base portions 35 b to 37 b are the front and extension portions of the main body portion 31. 35e-37e is formed so that it may be arranged above bases 35b-37b.

  Behind the base portion 35b of the right side wall 35 and the base portion 37b of the left side wall 37 (backward when the leg treatment device 10 is set in the open state), the rotational axis X of the crus support 30 (the axis corresponding to the rotational axis C) ) Is provided. That is, the rotation axis C is arranged such that the center of gravity GX of the crus holder 30 is arranged in front of the rotation axis C when the leg treatment device 10 is set in the open state.

An arm insertion groove 35 a into which the right arm 24 is inserted is formed in the base portion 35 b of the right wall 35.
An arm insertion groove 37 a into which the left arm 24 is inserted is formed in the base portion 37 b of the left side wall 37.

  The arm insertion groove 35a and the arm insertion groove 37a function as a storage chamber that the arm 24 stores when the crus holder 30 approaches the foot holder 20 (see FIG. 10). In addition, when the leg support body 30 is separated from the foot support body 20 and the leg treatment device 10 is set in the open state (see FIG. 3), the two arms 24 have the arm insertion groove 35a and the arm insertion groove. It is from 37a. According to this structure, compared with the case where this structure is not provided, it becomes possible to make the leg support body 30 and the foot support body 20 close to each other.

The right side wall 35, the intermediate wall 36, and the left side wall 37 are arranged substantially in parallel.
A space formed between the right side wall 35 and the intermediate wall 36 is a portion where the right lower leg is arranged. A space formed between the left side wall 37 and the intermediate wall 36 is a portion where the left lower leg is arranged.

With reference to FIG. 6, the frame structure 10B as a skeleton of the leg treatment apparatus 10 will be described.
The frame structure 10 </ b> B includes two support frames 11, a foot frame 120 that supports the foot holder 20, and a crus frame 130 that supports the crus holder 30.

The support frame 11 includes a basic frame 11A (see FIG. 14) and a slide frame 11B.
The base frame 11 </ b> A has a portion corresponding to the base end portion 12 of the support frame 11. That is, the base frame 11 </ b> A is rotatably attached to the upper connection frame 74 a of the base frame 70.

  The slide frame 11B is slidably attached to the base frame 11A via a bearing 11D. The distal end portion of the slide frame 11 </ b> B corresponds to the distal end portion 13 of the support frame 11. A rotation attachment portion 15 for rotatably attaching the foot frame 120 is provided at each of the tip portions 13 of the two support frames 11. A lower connecting member 16 that connects the rotation mounting portions 15 to each other is provided between the rotation mounting portions 15.

  The base frame 11A and the slide frame 11B are urged by a telescopic spring 11C in a direction in which the proximal end portion 12 and the distal end portion 13 approach each other. The extension spring 11C is constituted by, for example, a coil spring.

The foot frame 120 includes a rectangular frame 121 that is a support structure of the plate portion 23 of the foot holding body 20, and an arm frame 122 that is a support structure of the arm 24.
The rectangular frame 121 is rotatably attached to the rotation attachment portion 15 at the rear portion.

  An extension spring 124 is attached between the front end 121a of the rectangular frame 121 and the lower connecting member 16 so as to urge both of them to approach each other. That is, the foot holding body 20 is biased so as to approach the support frame 11 side. The extension spring 124 is configured by, for example, a coil spring.

The arm frame 122 is connected to the rear part of the rectangular frame 121.
A rotation attachment portion 123 for rotatably attaching the lower leg frame 130 is provided at the distal end portion 122a of the arm frame 122.

  The crus frame 130 includes a right frame 131 that is a support structure of the right side wall 35 of the crus support 30, an intermediate frame 132 that is a support structure of the intermediate wall 36 of the crus support 30, and a left side wall of the crus support 30. 37 and a left frame 133 which is a support structure.

The right frame 131, the intermediate frame 132, and the left frame 133 are connected to each other by two connecting frames 134.
The right frame 131 is rotatably attached to the right arm frame 122, and the left frame 133 is rotatably attached to the left arm frame 122.

  An extension spring 135 is attached between the extension portion 131e of the right frame 131 (the portion corresponding to the extension portion 35e) and the rotation attachment base end portion 123x of the right arm frame 122 so as to bring them closer together. It has been. The rotation attachment base end portion 123x indicates a portion of the arm frame 122 near the arrangement of the rotation attachment portion 123 and near the base end portion 122b.

  A connection hole 136 to which the front end 80 a of the regulating member 80 is connected is provided at the front end 132 a of the intermediate frame 132. The leading end 80 a of the regulating member 80 is attached to the connection hole 136 so as to be rotatable.

The structure of the foot airbag 41 will be described with reference to FIGS.
FIG. 7 is a cross-sectional view of the internal structure to which the leg airbag 41 and the crus airbag 51 are attached, cut along a cutting line at the same position as the line DD in FIG.

The leg airbag 41 includes an airbag main body portion 42 and a guide portion 43.
The airbag main body 42 is a portion into which air is put. That is, the airbag main body 42 is expanded by supplying air and contracted by discharging air.

The guide part 43 is a part into which air does not enter.
The guide part 43 is formed in a part of the outer peripheral part of the airbag main body part 42. The guide portion 43 is disposed toward the lower leg holding body 30 when the airbag main body 42 is attached to the foot holding body 20.

  Further, the guide portion 43 is formed so that at least a part of the guide portion 43 overlaps the lower leg airbag 51 when the leg treatment device 10 is in the open state. When the leg treatment device 10 is in the open state, at least a part of the guide portion 43 is disposed inside the crus airbag 51 (in the space between the pair of crus airbags 51). Further, the shape of the guide portion 43 is set so that a part of the guide portion 43 always overlaps with the lower leg airbag 51 in the process of the leg treatment device 10 shifting from the open state to the closed state. In particular, the front end portion 43a of the guide portion 43 moves along the side edge portion 51c from the base portion 51b of the lower leg airbag 51 in the process of the leg treatment device 10 shifting from the open state to the closed state, and near the upper end portion 51a. It is formed to reach.

  Further, the guide portion 43 is prevented from being deformed by the outer edge 43b being pressed against the main body portion 31 of the crus holding body 30 in the process in which the leg treatment device 10 is shifted from the open state to the closed state. Further, the size and shape are set.

As shown in FIG. 8, the airbag main body 42 has a folded portion 45. FIG. 8 shows a cross section of the E portion of FIG.
A folding portion 45 is provided in a portion corresponding to the airbag main body portion 42 in the top sheet 44 (portion facing the foot) of the foot airbag 41. The folding portion 45 is formed in a V shape, a U shape, an Ω shape, or a shape similar to these in a cross-sectional view. In the surface sheet 44 having such a foldable portion 45, when a tensile force is applied along the surface sheet 44, the angle θx of the foldable portion 45 increases, the foldable portion 45 expands, and the surface sheet 44 expands. When the pulling force along the surface sheet 44 is alleviated, the angle θx of the folding part 45 becomes small, the folding part 45 is folded, and the surface sheet 44 contracts. That is, the leg airbag 41 is inflated by supplying air and contracted by discharging air.

The lower leg airbag 51 has an airbag body 52.
The structure of the airbag body 52 is the same as the structure of the airbag body 42 of the foot airbag 41.

With reference to FIGS. 9-13, the operation | movement (henceforth, opening operation | movement) from which the leg treatment apparatus 10 changes from a closed state to an open state is demonstrated.
In this description, the rotation direction when the foot holding body 20 rotates away from the support frame 11 is referred to as a rotation direction A, and the foot holding body 20 rotates so as to approach the support frame 11. The rotation direction when doing this is referred to as the rotation direction B.

  The rotation direction when the crus support 30 rotates with respect to the arm 24 so that the extension portions 35e to 37e of the crus support 30 approach the front surface 24s of the arm 24 is referred to as a rotation direction C. A rotation direction when the crus support 30 rotates with respect to the arm 24 so that the extension portions 35e to 37e of the crus support 30 are separated from the front surface 24s of the arm 24 is referred to as a rotation direction D.

FIG. 9 shows the leg treatment device 10 in the closed state.
When the leg treatment device 10 is in the closed state, the first plane S1 and the second plane S2 are parallel. That is, the plate portion 23 of the foot holding body 20 is arranged in parallel to the support frame 11. At this time, the tip 24 a of the arm 24 is behind the support frame 11. For this reason, the lower leg support 30 is guided by the arm 24 and is arranged behind the support frame 11.

  Further, the extension portions 35 e to 37 e of the crus holder 30 are urged so as to approach the arm 24 by the extension spring 135. Further, the extension portions 35 e to 37 e are lifted upward by the restriction member 80. By these actions, the rearward rotation (rotation in the rotation direction D) of the lower leg holder 30 is restricted.

FIGS. 10-13 shows the process in which the leg treatment apparatus 10 transfers from a closed state to an open state.
FIG. 10 shows a state of the leg treatment device 10 when the leg holding device 20 is rotated in the rotation direction A and the rotation angle is set to the angle θ1 from the time when the leg treatment device 10 is in the closed state. At this time, the distal end portion 24 a of the arm 24 rotates with the rotation of the foot holding body 20 and approaches the support frame 11. Along with this, the crus holder 30 moves forward, and a part of the extension portions 35e to 37e of the crus holder 30 comes out ahead of the support frame 11. At this time, since the crus holding body 30 is biased so as to approach the arm 24 by the extension spring 135, the state in which the foot holding body 20 and the crus holding body 30 are close to each other is maintained. That is, the foot holding body 20 and the lower leg holding body 30 are in a folded state. For this reason, the crus holder 30 passes through the opening 2e of the accommodation chamber 2s without contacting the upper connecting member 14 (see FIG. 3).

  FIG. 11 shows the state of the leg treatment device 10 when the leg holding device 20 is further rotated in the rotation direction A and the rotation angle is set to the angle θ2 from when the leg treatment device 10 is in the state shown in FIG. . The distal end portion 24a of the arm 24 rotates with the rotation of the foot holding body 20 and reaches substantially the same position as the support frame 11 (the same position in the front-rear direction). For this reason, the crus holder 30 moves further forward, and the bases 35 b to 37 b of the crus holder 30 protrude forward from the support frame 11. Further, the second fastening part P <b> 2 of the crus holder 30 protrudes forward from the support frame 11.

When the leg treatment device 10 is in the state shown in FIG. 11, when the foot holder 20 further rotates in the rotation direction A, the crus holder 30 moves as follows.
That is, the second fastening part P2 of the lower leg holder 30 moves further forward than the support frame 11, and the second fastening part P2 gradually moves away from the first fastening part P1. That is, the shortest path distance between the first fastening site P1 and the second fastening site P2 is gradually increased. Further, along with this, the slackness of the regulating member 80 is gradually reduced. Further, when the foot holder 20 is rotated from this state, the shortest path distance between the first fastening part P1 and the second fastening part P2 becomes equal to the length of the regulating member 80. When the foot holding body 20 is further rotated in the rotation direction A, the trajectory of the second fastening portion P2 is restricted by the restriction member 80, whereby the lower leg holding body 30 resists the urging force of the expansion spring 135. It rotates in the rotation direction D. In this state, the arm 24 pushes up the crus support 30 from below. For this reason, the crus support 30 is in a standing state (a state in which the extended portions 35e to 37e are disposed upward and the base portions 35b to 37b are disposed downward).

FIG. 12 shows the leg treatment device 10 in a standing state.
That is, FIG. 12 shows the state of the leg treatment device 10 when the leg holding device 20 is further rotated in the rotation direction A and the rotation angle is set to the angle θ3 from when the leg treatment device 10 is in the state shown in FIG. Indicates.

  FIG. 13 shows the leg treatment when the leg treatment device 10 is in the state shown in FIG. 12 and the foot holding body 20 is further rotated in the rotation direction A so that the rotation angle is an angle θ4 (θ4 = 90 degrees). The state of the device 10 is shown. That is, FIG. 13 shows the leg treatment device 10 in the open state.

  At this time, since the extended portions 35e to 37e of the crus support 30 are supported by being lifted by the restricting member 80, the rotation of the crus support 30 in the rotation direction C is restricted. As a result, the standing state of the crus support 30 is stabilized.

Next, the operation | movement (henceforth extending | stretching operation | movement) from which the leg treatment apparatus 10 reaches an extended state from an open state is demonstrated.
When the leg treatment device 10 is set in the extended state, the leg treatment device 10 is set in the open state, and then the foot holding body 20 is moved downward. That is, the slide frame 11B is moved downward with respect to the base frame 11A of the support frame 11.

  By the way, when the leg treatment apparatus 10 is shifted from the open state to the extended state, it is preferable that the transition is performed smoothly. And in order to perform this transition smoothly, it is preferable to prevent the crus holder 30 from rotating in this transition process. This is because, if the lower leg holder 30 does not rotate, it is troublesome to operate the leg treatment device 10 if it cannot be set in the extended state.

  For this reason, in this embodiment, the length of the regulating member 80 and the first fastening portion are set so that the positional relationship between the foot holding body 20 and the lower leg holding body 30 does not change with the movement of the slide frame 11B. The positional relationship between P1 and the second fastening part P2 is set. This point will be described below.

With reference to FIG. 13, the length of the restricting member 80 and the first and second fastening portions P1, P2 will be described.
The restricting member 80 restricts the movement range of the extension portions 35e to 37e of the crus holder 30 when the leg treatment device 10 is opened, and puts the crus holder 30 upright. For this reason, the length of the regulating member 80 is set so that the regulating member 80 is stretched when the leg treatment device 10 is in the open state. For example, the length of the regulating member 80 is substantially equal to the shortest path distance when the leg treatment device 10 is set to the open state. Here, the term “substantially equal” includes a length having a margin (for example, a play of several centimeters).

  However, when the second fastening site P2 in the crus holder 30 is inappropriate, the positional relationship between the foot holder 20 and the crus holder 30 may change as the slide frame 11B moves.

  For example, the second fastening part P2 when the leg treatment device 10 is in the open state is arranged so as to be positioned lower than the first fastening part P1 in the axial direction DF (longitudinal direction) of the support frame 11. When this occurs, the following problem occurs (see FIG. 13, point Px). That is, in such an arrangement, the leg support 30 rotates in the rotation direction D by the extension operation of the leg treatment device 10. This is because the part Px tries to translate in the axial direction DF during the extension operation of the leg treatment device 10, but if the translation is continued, the shortest path distance becomes longer than the length of the regulating member 80. This is because 80 prevents the parallel movement. As a result, with the movement of the slide frame 11B, the arrangement relationship between the foot holder 20 and the crus holder 30 changes.

In order to avoid such a situation, in the present embodiment, the second fastening portion P2 is arranged on the crus holder 30 as follows.
That is, it is assumed that the leg therapy device 10 is translated with respect to the support frame 11 without changing the positional relationship between the foot holding body 20 and the lower leg holding body 30 in the process of shifting from the open state to the extended state. Then, when the leg treatment device 10 is shifted from the open state to the extended state under this premise, the second fastening site P2 is such that all of the shortest path distances are equal to or less than the length of the regulating member 80. Place.

  For example, when the leg treatment device 10 is set in the open state, the lower leg holding body 30 is arranged such that the second fastening part P2 is positioned higher than the first fastening part P1 in the axial direction DF of the support frame 11. On the other hand, the second fastening part P2 is arranged. In addition, when the leg treatment device 10 is set in the extended state, the lower leg holding body 30 is arranged such that the second fastening part P2 is positioned lower than the first fastening part P1 in the axial direction DF of the support frame 11. On the other hand, the second fastening part P2 is arranged. Thereby, the parallel movement of the foot holding body 20 and the lower leg holding body 30 accompanying the movement of the slide frame 11B becomes smooth. In addition, the positional relationship between the foot holder 20 and the crus holder 30 is maintained before and after the slide frame 11B moves.

Incidentally, there is another problem in the arrangement of the second fastening portion P2.
For example, it is conceivable to arrange the second fastening part P2 at the tip part Py (see FIG. 13) of the crus holder 30. However, when the leg treatment device 10 is in the closed state (see FIG. 9, point Py), the distal end portion Py of the crus holder 30 is disposed at a position close to the first fastening portion P1, so that the regulating member 80 is large. Sag. In this case, when the massage machine 1 is rocked during transportation or the like, the crus holder 30 rotates and the crus holder 30 and the base frame 70 collide with each other. Such a collision may deteriorate the lower leg cover 38 of the lower leg holder 30.

  For this reason, when the leg treatment device 10 is set to the closed state, the second fastening part P2 is arranged on the crus holder 30 so that the second fastening part P2 is located far from the support frame 11. It is preferable.

As described above, in the present embodiment, in the crus holder 30, the second fastening portion P2 is disposed so as to satisfy the following requirements.
The requirements are listed below.

  First, as a premise, the second fastening portion P2 is arranged so that the shortest path distance when the leg treatment device 10 is set to the open state and the length of the regulating member 80 are substantially equal (hereinafter, referred to as “the second fastening portion P2”). Prerequisite.) And when the leg treatment apparatus 10 is set to the open state, the second fastening part P2 is positioned so that the second fastening part P2 is higher than the first fastening part P1 in the axial direction DF of the support frame 11. (This is referred to as a first condition). And when the leg treatment apparatus 10 is set to the extended state, the second fastening part P2 is positioned so that the second fastening part P2 is lower than the first fastening part P1 in the axial direction DF of the support frame 11. (This is referred to as a second condition). Hereinafter, the precondition, the first condition, and the second condition are referred to as the first requirement.

  Preferably, the second fastening portion P2 is disposed so that the shortest path distance when the leg treatment device 10 is set in the extended state and the length of the regulating member 80 are substantially equal (hereinafter, referred to as “the second fastening portion P2”). This is called the second requirement.) That is, it is preferable that both the first and second requirements are satisfied.

  In addition, preferably, the second fastening portion P2 is arranged so that the shortest path distance when the leg treatment device 10 is set to the closed state and the length of the regulating member 80 are substantially equal (hereinafter, referred to as “the second fastening portion P2”). This is called the third requirement.) That is, it is preferable that all of the first to third requirements are satisfied. In addition, arrangement | positioning of the 2nd fastening site | part P2 shown by FIG. 9 is arrangement | positioning which satisfy | fills all the said 1st-3rd requirements.

The effect | action of this structure accompanying the expansion | extension operation | movement of the leg treatment apparatus 10 is demonstrated with reference to FIGS.
As shown in FIG. 13, when the leg treatment device 10 is in the open state, the shortest path distance is equal to the length of the regulating member 80. For this reason, the regulating member 80 is in a tensioned state. Thereby, the posture of the leg treatment apparatus 10 in the open state is stably maintained.

FIG. 14 shows one state of the process of the leg treatment device 10 from the open state to the extended state.
In the process of the leg treatment device 10 from the open state to the extended state, the shortest path distance is shorter than the length of the regulating member 80, and the regulating member 80 is loosened. For this reason, the extending | stretching operation | movement of the leg treatment apparatus 10 advances smoothly. Further, in the extension operation process of the leg treatment device 10, the positional relationship between the foot holder 20 and the crus holder 30 is maintained.

FIG. 15 shows an extended state of the leg treatment device 10.
As shown in FIG. 15, the shortest path distance is equal to the length of the regulating member 80 when the leg treatment device 10 is in the extended state. For this reason, the restricting member 80 is in a tensioned state, and the rotation of the crus support 30 is restricted. For this reason, the attitude | position of the expansion | extension state of the leg treatment apparatus 10 is maintained stably.

In the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the second fastening site P2 is arranged so that the shortest path distance when the leg treatment device 10 is set to the open state and the length of the regulating member 80 are equal. And it presupposes that it moves without changing the arrangement | positioning relationship of the leg holding body 20 and the crus holding body 30 over the process which transfers to an extended state from an open state. Based on this premise, the second fastening portion P2 is disposed where any of the shortest path distances in the transition process is equal to or less than the length of the regulating member 80.

  Depending on the arrangement of the second fastening part P2 in the crus support 30, the shortest path distance between the first fastening part P1 and the second fastening part P2 may be reduced in the process of the leg treatment device 10 shifting from the open state to the extended state. It becomes longer than the length of the regulating member 80. In this case, in the process in which the leg treatment device 10 shifts from the open state to the extended state, the transfer is hindered.

  On the other hand, in the above configuration, in the crus holding body 30, the second fastening portion P2 is disposed at a position where all of the shortest path distances in the transition process are equal to or less than the length of the regulating member 80. For this reason, the leg treatment apparatus 10 can be smoothly shifted from the open state to the extended state. That is, the foot holder 20 and the crus holder 30 can be smoothly moved away from the seat 2.

  (2) In the present embodiment, when the leg treatment device 10 is in the open state, the leg treatment device 10 is positioned higher than the first fastening portion P1, and when the leg treatment device 10 is in the extended state, it is lower than the first fastening portion P1. The 2nd fastening site | part P2 is arrange | positioned in the leg support body 30 so that it may be located in.

  According to the above configuration, in the process of shifting the leg treatment device 10 from the open state to the extended state without changing the positional relationship between the foot holder 20 and the crus holder 30, any of the shortest path distances in this transition process is The length is less than the length of the regulating member 80. For this reason, the leg treatment apparatus 10 can be smoothly shifted from the open state to the extended state.

(3) In the present embodiment, the second fastening portion P2 is arranged so that the shortest path distance when the leg treatment device 10 is in the closed state is equal to the length of the regulating member 80.
According to this configuration, when the leg therapy device 10 is in the closed state, the movement of the crus support 30 is regulated by the regulating member 80, so that the leg therapy device 10 in the closed state can be maintained in a stable posture.

(4) The arrangement of the second fastening site P2 preferably satisfies the following requirements.
The shortest path distance when the leg treatment apparatus 10 is in the open state, the shortest path distance when the leg treatment apparatus 10 is in the extended state, and the shortest path distance when the leg treatment apparatus 10 is in the closed state, respectively. The second fastening part P2 is arranged so as to be equal to the length of 80.

  According to this configuration, since the rotation of the crus support 30 is restricted by the restriction member 80 in each of the closed state, the open state, and the extended state, the leg treatment device 10 is closed, open, and extended. Can be maintained in a stable posture.

  (5) The support frame 11 of the present embodiment includes a basic frame 11A and a slide frame 11B. Then, the basic frame 11A and the slide frame 11B are urged so as to approach each other. According to this configuration, the leg treatment device 10 can be easily shifted from the extended state to the open state. That is, it is possible to reduce the labor required to pull up the foot holder 20.

  (6) The massage machine 1 which concerns on this embodiment is provided with the leg treatment apparatus 10 of the said structure. For this reason, the leg treatment apparatus 10 can be smoothly shifted from the open state to the extended state. That is, the massage machine 1 can smoothly move the foot holder 20 and the lower leg holder 30 away from the seat 2.

  Further, the arrangement relationship between the foot holding body 20 and the lower leg holding body 30 when the leg treatment device 10 is in the open state, and the arrangement relationship between the foot holding body 20 and the lower leg holding body 30 when the leg treatment device 10 is in the extended state. Can be in substantially the same positional relationship.

(Other embodiments)
The modification of this embodiment is illustrated. Note that the modifications shown below can be combined with each other.

  -In this embodiment, although the 1st fastening site | part P1 to which the base end 80b of the control member 80 is connected is provided in the intermediate part of the upper connection member 14 provided between the two support frames 11, The arrangement of the fastening site P1 is not limited to this. The 1st fastening site | part P1 should just be arrange | positioned at the base end part 12 side of the support frame 11, for example, provides the base frame 70 of the seat part 2, and arrange | positions the 1st fastening site | part P1 to this rib. Also good.

  -In this embodiment, although the 2nd fastening site | part P2 to which the front-end | tip 80a of the control member 80 is connected is provided in the outer peripheral surface of the lower leg support body 30, arrangement | positioning of the 2nd fastening site | part P2 is not limited to this. For example, a rib protruding from the crus support 30 may be provided, and the second fastening portion P2 may be provided on this rib.

  In the present embodiment, the two support frames 11 are rotatably attached to the base frame 70, but such a configuration may be omitted. Even in this case, the leg treatment device 10 has the same effect as the above (1).

  In the present embodiment, the lower leg massage unit 50 includes the lower leg airbag 51, but the configuration of the lower leg massage unit 50 is not limited to this. As the lower leg massage unit 50, for example, a device having a kneading ball that holds the lower leg, a heater for warming the lower leg, or the like may be employed.

  In the present embodiment, the crus holder 30 includes the right side wall 35, the intermediate wall 36, and the left side wall 37, but the form of the crus holder 30 is not limited to this. The form of the crus holder 30 is appropriately changed depending on the form of the crus massage unit 50 mounted on the crus holder 30.

  In the present embodiment, the foot massage unit 40 includes the foot airbag 41, but the configuration of the foot massage unit 40 is not limited to this. As the foot massage unit 40, for example, a device having a kneading ball that rubs the foot, a heater that warms the foot, or the like may be employed.

  -In this embodiment, although the leg holding body 20 has the three ribs 23a-23c, the form of the leg holding body 20 is not limited to this. The form of the foot holding body 20 is appropriately changed depending on the form of the foot massage unit 40 mounted on the foot holding body 20.

  -In this embodiment, although the foot massage unit 40 is provided in the foot holding body 20, this can also be abbreviate | omitted. Even in this case, the leg treatment device 10 has the same effect as the above (1).

  DESCRIPTION OF SYMBOLS 1 ... Massage machine, 2 ... Seat part, 10 ... Leg treatment apparatus, 11 ... Support frame, 20 ... Leg holder, 30 ... Lower leg holder, 80 ... Restriction member.

Claims (6)

A support frame having a base end portion attached to the seat portion and capable of extending and contracting in the axial direction;
A foot holder that is rotatably attached to the tip of the support frame and holds the foot;
A lower leg holder that is rotatably attached to the foot holder and holds the lower leg;
The shortest distance between the first fastening part and the second fastening part by connecting the first fastening part arranged on the base end side of the support frame and the second fastening part arranged on the crus holder. A regulating member that regulates the range of movement of the crus support so that the path distance is less than or equal to the set length,
The foot holding body and the support frame are separated from each other, the lower leg holding body is disposed in front of the seat portion, and the support frame is most shortened,
The foot holding body and the support frame are separated from each other, the crus holding body is disposed in front of the seat portion, and the support frame has an extended state in which the support frame extends most.
The second fastening portion is disposed at a position in the crus holding body such that the shortest path distance when the leg treatment device is set to the open state and the length of the restriction member are equal to each other.
When the second fastening portion is moved without changing the positional relationship between the foot holding body and the crus holding body over the process of transitioning from the open state to the extended state, the shortest path in the transition process The leg treatment device is disposed at a position where any of the distances is equal to or less than the length of the restriction member. The second fastening part is positioned higher than the first fastening part when in the open state, and is positioned lower than the first fastening part when in the extended state. The leg treatment device according to claim 1, wherein the leg treatment device is disposed on a crus holder. The foot holding body and the support frame approach each other, the lower leg holding body is disposed in the seat, and the support frame has the most shortened closed state,
The leg treatment device according to claim 1 or 2, wherein the shortest path distance in the closed state is equal to a length of the restriction member. The shortest path distance in the open state, the shortest path distance in the extended state, and the shortest path distance in the closed state are each equal to the length of the regulating member. Leg treatment device as described in 1. The support frame includes a base frame and a slide frame that slides relative to the base frame;
The leg treatment device according to any one of claims 1 to 4, wherein the base frame and the slide frame are biased so as to approach each other.   A massage machine provided with the leg treatment apparatus as described in any one of Claims 1-5.