JP2006102089A - Chair type massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair type massage machine appropriately setting the height of armrest sections in both cases when storing and developing the armrest sections, in the chair type massage machine having a massage mechanism in a leg placement section and being used as a chair, even if the leg placement section is stored between the left/right armrest sections. <P>SOLUTION: This chair type massage machine 1 can be used in both states of the storage state where the leg placement section 5 is stored between the left/right armrest sections 3 over a seat section 2 and the rear face of the leg placement face 4 is used as a seat face, and a development state where the leg placement section is disposed in the front side of the seat section 2. The armrest section 3 has a height adjusting mechanism, can be adjusted higher than the rear face 7 of the leg placement face 4 in the storage state, and be adjusted lower in the development state than the height of the rear face 7 in the storage state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a chair-type massage machine that includes a leg placement unit and the leg placement unit has a massage function.

  Some chair type massage machines have a chair body having a seat part, a backrest part, and an armrest part, and a leg mounting part rotatably connected to the front part of the seat part. In such a chair-type massage machine, the massage mechanism is appropriately arranged in the seat portion, the armrest portion and the like including the backrest portion, but there is also a massage mechanism arranged in the leg placement portion.

In the chair type massage machine having such a leg rest, in order to save space, when the leg rest is not used for leg massage, the leg rest can be accommodated on the seat. Proposed. In this case, when the leg placement unit is used for leg massage, the leg placement unit is disposed in front of the seat, and the user's leg is placed on the leg placement surface of the leg placement unit. However, when the leg placement portion is accommodated, the leg placement portion is rotated so that the leg placement surface is turned downward and accommodated on the seat portion. Therefore, at the time of the accommodation, the back surface of the leg placement surface (the surface opposite to the leg placement surface) faces upward, and the user sits on this back surface, so that it can be used as a chair even when the leg placement portion is accommodated. Can be used.
JP-A-9-266933

When the leg placement portion is accommodated, the leg placement portion is disposed on the seat portion, and the back surface of the leg placement portion serves as the seat surface of the chair. Therefore, the seat surface is increased by at least the thickness of the leg placement portion. Become. If it does so, the height of the armrest part with respect to a seat surface will become lower after accommodation rather than accommodation before a leg mounting part.
If the height of the armrest is set high in advance in order to ensure sufficient height of the armrest when storing the rest, the armrest will be too high when the leg rest is deployed in front of the chair. It makes it harder to sit and reduces the effect of massage. On the other hand, if the height of the armrest is set with reference to the time when the leg rest is unfolded (when not accommodated), the arm rest becomes too low when the leg rest is accommodated, or the arm rest becomes lower than the seat surface. It will be in the state where an armrest part was lost substantially.

  In particular, if the leg placement part has a massage function, an air cell (air bag), an air passage such as a tube, or a mechanical retracting mechanism will be provided in the leg placement part. Since the recessed part which accommodates may be provided, the thickness of a leg mounting part tends to become large (thick). Therefore, the difference in seat surface height between when the leg rest is accommodated and when it is deployed increases, and the above-described problem of armrest height becomes even more apparent.

  The present invention has been made in view of such a situation, and has a massage mechanism in the leg placement portion and can be used as a chair even when the leg placement portion is accommodated between the left and right armrest portions. In the present invention, the height of the armrest portion can be made appropriate both when the armrest portion is housed and when it is deployed.

  The chair-type massage machine of the present invention includes a seat, armrests provided on the left and right sides of the seat, and a leg placement surface on which a user's leg is placed so as to be pivotally attached to the chair front. A leg-type massage machine having a massage mechanism and a leg-type massage machine, wherein the leg-placement unit has the leg-mounting surface facing downward due to the rotation. Both of the accommodated state in which the back surface of the leg placement surface is accommodated between the left and right armrest portions and used as the seat surface, and the unfolded state in which the leg placement surface is directed upward and disposed on the front side of the seat portion, The armrest portion has a height adjustment mechanism, can be adjusted to a position higher than the height of the back surface of the leg placement surface used as a seating surface in the housed state, and is in the unfolded state. Is lower than the height of the back surface in the accommodated state. It is characterized in that adjustable to the position.

  If it does in this way, since an armrest part can be made higher than the leg mounting part back surface used as a seat in the above-mentioned accommodation state, the armrest function of an armrest part can be maintained also in this accommodation state. In the unfolded state (the state where the leg rest is not accommodated), the armrest height can be adjusted lower than the height of the back surface in the accommodated state, and therefore the thickness of the leg rest is relatively large. However, the armrest height in the unfolded state can be prevented from becoming too high, and an appropriate height can be obtained.

  The operation unit for operating the height adjustment mechanism may be provided inside the armrest unit and may be concealed by the leg placement unit in the accommodated state. If it does in this way, since the operation part of the said height adjustment mechanism can be made not conspicuous in the said accommodation state, it can be set as the appearance close | similar to the mere chair as furniture instead of a chair type massage machine. In this case, the operation portion of the height adjustment mechanism may be operated when lowering the height of the armrest portion, and may not be required when raising the height of the armrest portion. Good. If it does in this way, the height of an armrest part can be made high also in the state where the operation part was concealed in the accommodation state. Further, in a state where the operation unit is not concealed, such as the unfolded state, the height of the armrest unit can be lowered by operating the operation unit.

  The rotation of the leg placement part and the height adjustment mechanism of the armrest part are interlocked, and when the leg placement part is turned toward the accommodation state, the armrest part operates so as to be raised, It is good also as a structure which operate | moves so that the said armrest part may become low if the said leg mounting part is rotated toward the said unfolding state. If it does in this way, since an armrest part goes up and down in an appropriate direction in conjunction with rotation of a leg mounting part, the effort of height adjustment of an armrest part can be saved.

  Since the armrest is provided with a height adjustment mechanism, and the adjustment range is set appropriately, the armrest can be used in both cases where the leg rest with the massage mechanism is accommodated between both armrests and when it is not accommodated. The height with respect to the seating surface can be set appropriately.

Embodiments of the present invention will be described below with reference to the drawings.
FIG.1 and FIG.3 is a perspective view of the chair type massage machine 1 which is one Embodiment of this invention, FIG.2 and FIG.4 is the side view.
The chair-type massage machine 1 includes a seat portion 2, armrest portions 3 provided on the left and right sides of the seat portion 2, and a footrest on which a user's legs are placed so as to be pivotally attached to the front portion of the chair. A leg placement portion 5 having a placement surface 4 and a massage mechanism (not shown) and a backrest portion 6 are provided.

  The leg placing part 5 can be rotated at the front part of the seat part 2 or the armrest part 3, and the leg placing part 5 is in an unfolded state (shown in FIGS. 1 and 2) and accommodated by the turning. Both states (shown in FIGS. 3 and 4) can be made. In the accommodated state, the leg placement surface 5 is accommodated between the left and right armrest portions 3 on the seat portion 2 with the leg placement surface 4 facing downward, and the back surface 7 of the leg placement surface 4 is the seat surface. It is the state used as. On the other hand, the unfolded state is a state in which the leg placing part 5 is arranged on the front side of the seat part 2 with the leg placing surface 4 facing upward. In this unfolded state, a user sitting on the chair type massage machine 1 can place a leg on the leg placement surface 4 and receive a leg massage.

  In addition, as shown in FIG. 1, the leg mounting part 5 is provided with the two recessed parts 10 which can each arrange | position the user's right and left leg sitting on the chair type massage machine 1. As shown in FIG. Although not shown, air cells that are expanded and contracted by air are provided at various locations on the inner surface of each recess 10 so that the legs placed in the recess 10 can be massaged.

  In order to facilitate the following description, the seat surface in the deployed state, that is, the seat surface constituted by the upper surface of the seat portion 2 is also referred to as the seat surface 11 when deployed (see FIGS. 1 and 2), and is in the accommodated state. The seat surface constituted by the rear surface 7 of the leg placement surface 5 in the leg placement portion 5 is also referred to as a seating surface 12 when housed (see FIGS. 3 and 4).

  The armrest portion 3 has a height adjusting mechanism 8 that enables the height adjustment thereof. 5-7 is the perspective view which extracted and described one side among the chair side surface parts 20 which comprise the armrest part 3 and comprise the right-and-left side surface part of the chair type massage machine 1, among these, FIG. 5 (and above-mentioned) 1 and 2) show the state where the armrest 3 is adjusted to the lowest level, and FIG. 6 (and FIGS. 3 and 4 described above) show the state where the armrest 3 is adjusted to the highest level. FIG. 7 is an exploded perspective view of the height adjusting mechanism 8.

The height adjustment range of the armrest portion 3 by the height adjustment mechanism 8 is determined in relation to the seat surface 11 when deployed and the seat surface 12 when stored.
First, the armrest portion 3 can be adjusted to be higher than the back surface 7 of the leg placement surface 4 used as a seating surface, that is, the height of the seating surface 12 when housed, at least in the housed state. That is, in the accommodated state shown in FIG. 4, the height of the armrest 3 (the maximum height when the height is not constant) is the height of the seating surface 12 when accommodated (the height is not constant when the height is not constant). The height can be adjusted higher than the maximum height hs by the height difference h1 (see FIG. 4). The height difference h1 is preferably set to about 100 mm to 200 mm in consideration of the height required for a normal armrest.
As shown in FIG. 2, the armrest portion 3 is lower by a height difference h2 than the height hs of the seating surface 12 (shown by a two-dot chain line in FIG. 2) in the deployed state, at least in the deployed state. It can be adjusted.

  Next, the height adjusting mechanism 8 will be described in detail. The height adjusting mechanism 8 includes an operation lever 9 as an operation unit for operating the mechanism. The operation lever 9 can be operated only in the upward direction. When the operation lever 9 is operated in the upward direction, the height is completely released, and the movable portion 3a of the armrest portion 3 is moved in the upward and downward directions. Can do. On the other hand, when the operation lever 9 is not operated, the movable part 3a cannot be lowered, but can be raised. That is, when the movable part 3a of the armrest part 3 is raised, it is not necessary to operate the operation lever 9, and any part (for example, a side surface part) of the movable part 3a may be lifted. As described above, the operation lever 9 needs to be operated when the height of the armrest portion 3 is lowered, but need not be operated when the height of the armrest portion 3 is increased.

As shown in the exploded perspective view of FIG. 7, the height adjusting mechanism 8 includes a portion provided on the movable portion 3a side and a portion provided on the non-movable portion side (the chair side surface portion 20 side excluding the movable portion 3a). Are combined.
On the movable portion 3a side, the operation lever 9, two leaf springs 15 extending in a substantially inverted C shape obliquely upward from the upper surface of the operation lever 9, and the operation lever 9 are integrally interlocked with each other. A bar-like interlocking member 16 extending downward from the operation lever 9, a flat slide part 17, a cover 18 covering the interlocking member 16 and the slide part 17 from the inner side of the armrest part, and the movable part 3a are fixed at a predetermined height. A fixing claw portion 21 is provided. As shown in FIG. 7, the fixed claw portion 21 is provided on the side opposite to the interlocking member 16 with respect to the slide portion 17. The lower end portion of the interlocking member 16 is bent at a substantially right angle, and the bent portion passes through a through hole 23 provided in the slide portion 17 and is rotatably connected to the fixed claw portion 21.
On the other hand, a guide portion 19 for inserting the slide portion 17 and sliding the slide portion 17 in the vertical direction is provided on the non-movable portion side. In the guide portion 19, guide grooves 24 corresponding to the width and thickness of the slide portion 17 are provided opposite to each other on the left and right sides. Then, by inserting the slide portion 17 into the guide groove 24, the slide portion 17 can be slid in the vertical direction. Thereby, the movable part 3a can be moved in the vertical direction. When the slide part 17 moves relative to the guide part 19, the fixed claw part 21 also moves relative to the guide part 19, but the guide part 19 has a relative movement space of the fixed claw part 21. A claw moving groove 25 for securing is provided continuously in the vertical direction. The guide portion 19 is fixed to the chair side surface portion 20 side by three screws 22.

  Further, the guide portion 19 has a plurality of claw engaging recesses 26 for fixing the movable portion 3a at a predetermined height by engaging with the fixed claw portion 21 (four locations in the embodiment shown in FIG. 7). ) Is provided. The height of the armrest portion 3 can be adjusted depending on which of the plurality of claw engaging concave portions 26 is engaged with the claw engaging concave portion 26.

  FIG. 8 is a view for explaining the engagement between the fixed claw portion 21 and the claw engaging recess 26. The fixed claw portion 21 is rotatably attached to the slide portion 17 (not shown in FIG. 8) on the rotation shaft 27. However, the fixed claw portion 21 is not freely rotatable around the rotation shaft 27, but the rotation is restricted by the interlocking member 16. This will be described below.

  The rotation range of the fixed claw portion 21 is restricted by the movable range in the vertical direction of the interlocking member 16. The movable range of the interlocking member 16 is the vertical direction of the operation lever 9 that is integrally connected to the interlocking member 16. It is regulated by the movable range. FIG. 9 is a view of the vicinity of the operation lever 9 as seen from the seat surface side of the chair. The upper limit position of the movable range in the vertical direction of the operating lever 9 is a position where the upper end surface 9a of the operating lever 9 contacts the main body side inner surface 29 of the movable portion 3a, while the lower limit position of the movable lever 9 is fixed to the interlocking member 16. The claw portion 21 is in a position to be in an engaged state to be described later. The operating lever 9 is biased downward by the leaf spring 15 in the entire movable range, and the interlocking member 16 connected to the leaf spring 15 is also biased downward. Thus, since the interlocking member 16 is urged downward by the urging force of the leaf spring 15, the fixed claw portion 21 is also urged to rotate in one direction (counterclockwise direction in FIG. 8). Has been. In a state where the operation lever 9 is not operated, the operation lever 9 tries to take the lower limit position of the movable range by the urging force of the leaf spring 15.

  As shown in FIG. 8A, the interlocking member 16 is rotatable to the fixed claw portion 21 on the side opposite to the engagement portion 28 that engages with the claw engagement recess 26 with respect to the rotation shaft 27. It is attached. Then, as shown in FIG. 8A, the state in which the fixed claw portion 21 and the claw engaging recess 26 are engaged (hereinafter also referred to as the engaged state) is maintained, so that the armrest portion 3 (the movable portion thereof) is maintained. The height of 3a) is fixed. At this time, the operation lever 9 is at the lower limit position of the movable range, and therefore the interlocking member 16 cannot move further downward with respect to the rotation shaft 27. That is, the interlocking member 16 prevents the fixed claw portion 21 from rotating in the direction in which the engaging portion 28 is raised (counterclockwise direction in FIG. 8) than the engaged state in FIG. Yes. Therefore, the fixed claw portion 21 is not rotated by a load such as the own weight of the armrest portion 3 or the weight of the user's arm, and the engagement between the fixed claw portion 21 and the claw engaging recess 26 is not released. . Therefore, the movable part 3a does not fall with respect to the guide part 19, and the height of the armrest part 3 is fixed.

  On the other hand, as shown in FIG. 8B, when the user raises the movable portion 3 a without operating the operation lever 9, the fixed claw portion 21 tends to move upward relative to the guide portion 19. At this time, the fixed claw portion 21 moves in a direction in which the engaging portion 28 is lowered (clockwise direction in FIG. 8) against the urging force of the leaf spring 15 due to the user's force to raise the movable portion 3a. By rotating, the engagement between the engagement portion 28 of the fixed claw portion 21 and the claw engagement recess 26 is released, and the height of the armrest portion 3 can be increased.

  When lowering the movable portion 3a, the operation lever 9 is operated upward against the urging force of the leaf spring 15 described above, and the front end of the engaging portion 28 of the fixed claw portion 21 as shown in FIG. Is lifted from the inner end surface 19 a of the guide portion 19. By doing in this way, the movable part 3a can be freely moved downward (and of course upward).

  As described above, the fixed claw portion 21 is urged counterclockwise in FIG. 8 by the urging force of the leaf spring 15. Therefore, when the operation lever 9 is not operated by releasing the hand from the operation lever 9 in a state where the claw engagement recess 26 and the fixed claw portion 21 are not engaged, the engagement portion in the fixed claw portion 21 is set. The tip of 28 is in contact with the inner end surface 19 a of the guide portion 19. In this state, when the movable portion 3a is lowered and the engagement portion 28 and the claw engagement recess 26 are in a positional relationship that allows the engagement portion 28 and the claw engagement recess 26 to engage with each other, the engagement portion 28 slides into the claw engagement recess 26 from the tip side (see FIG. 8 (b)) and eventually the engaged state shown in FIG. 8 (a) is reached.

  The shape of the engagement portion 28 is such that the engagement is easily released with respect to the upward relative movement with respect to the claw engagement recess 26 and the engagement with respect to the downward relative movement with respect to the claw engagement recess 26. Has been devised to make it difficult to cancel. That is, the upper contour shape of the engaging portion 28 in the engaged state of FIG. 8A is a substantially simple inclined surface, whereas the lower contour shape is below the claw engaging recess 26. It has a shape that is bent in a concave shape so as to be easily engaged with the side surface 26a, and has a locking portion 28a that is substantially horizontal in the engaged state of FIG.

  As shown in FIGS. 1 and 3, an operation lever 9 that is an operation unit for operating the height adjusting mechanism 8 is provided inside the armrest 3. And if the leg mounting part 5 is rotated by making the height of the movable part 3a into the lowest position and it is in the said accommodation state, the height hs of the seating surface 12 at the time of accommodation will be higher by h2 than the armrest part 3. The operation lever 9 is concealed by the leg placement portion 5 (see the two-dot chain line in FIG. 4). Therefore, in this case, it is possible to provide a chair that is not a massage chair and has a similar appearance to normal furniture. In particular, in recent years, even in a massage chair, there is a tendency that an appearance close to that of a chair in normal furniture is preferred.

  In the present embodiment, as shown in FIG. 3, when the movable part 3a is adjusted to the maximum height, the operation lever 9 is not concealed by the leg placement part 5 even when the movable part 3a is in the housed state. In order to conceal the lever 9, it is necessary to adjust the height of the armrest portion 3 to a minimum or relatively low position after being in the accommodated state. Therefore, in a state where the operation lever 9 is concealed by the leg placement portion 5, the height of the armrest portion 3 is lower than the seating surface 12 at the time of housing or not sufficiently higher than the seating surface 12 at the time of housing, A portion having an armrest function is substantially absent. However, for example, by setting the position of the operation lever 9 to a position lower than that of the present embodiment, the operation lever 9 can be mounted on the leg placement portion even when the height of the armrest portion 3 is higher than the seating surface 12 in the accommodated state. You may comprise so that it may be concealed by 5.

  As described above, in the present embodiment, when the movable portion 3a is in the accommodated state with the lowest height, the operation lever 9 is concealed by the leg placing portion 5, but as described above, Since the operation of the operation lever 9 is not required when raising the movable part 3a, the movable part 3a can be raised even when the operation lever 9 is hidden. Further, when shifting from the housed state to the deployed state, the concealed operation lever 9 is exposed and the operation lever 9 can be operated. Therefore, the movable portion 3a can be lowered by operating the operation lever 9 in the unfolded state.

  When the operating lever 9 is concealed in the housed state, even if there is a margin in the lower limit of the movable range of the movable portion 3a, the movable lever 3a cannot be lowered because the operating lever 9 cannot be operated. However, in the housed state, the seating surface becomes the seating surface 12 when housed, and the seating surface becomes relatively high. Therefore, it is highly necessary to raise the movable part 3a in response to the seating surface that is higher, There is little need to lower. Therefore, even if the operating lever 9 is concealed in the accommodated state and the movable part 3a cannot be lowered, there is almost no problem, and the advantage of concealing the operating lever 9 described above is more important.

  As shown in FIG. 4, when the leg rest part 5 is folded and placed in the housed state with the movable part 3a in the lowest position, the height of the armrest part 3 is equal to or less than the height of the seating surface 12 when housed. A chair having no function (that is, no armrest) can be obtained. Such a chair without an armrest has an advantage that the user can sit on the chair not only from the front of the chair but also from the side (left and right sides) of the chair.

In the chair type massage machine 1 of the above embodiment, the armrest portion 3 can be made higher than the leg resting portion back surface 7 serving as a seating surface in the housed state, that is, the seating surface 12 when housed. The function can be maintained. Further, as shown in FIG. 2, the armrest height can be adjusted to be lower than the back surface height hs in the accommodated state in the unfolded state, so even if the thickness t (see FIG. 4) of the leg resting portion is relatively large. In the deployed state, the armrest height can be prevented from becoming too high, and an appropriate height can be obtained. In the case where the thickness t of the leg resting portion is thick, if the height of the armrest portion 3 is set with reference to the seating surface 12 at the time of accommodation, the height of the seating surface according to the thickness t when in the deployed state. Since it becomes low, the problem that the tendency for the height of the armrest part 3 to become high becomes strong arises. This problem becomes more apparent when the leg placement unit 5 has a massage mechanism. This is because, when the leg placement unit 5 has a massage mechanism, the thickness t of the leg placement unit tends to increase as described above. However, in the chair type massage machine 1, the height of the armrest portion 3 can be adjusted to be lower than the height of the seating surface 12 in the retracted state, so that the height of the armrest portion 3 can be appropriately adjusted even in the expanded state.
When the thickness t of the leg resting portion is 100 mm or more, particularly 200 mm or more, the armrest height in the deployed state tends to be higher than necessary, but the armrest is higher than the height of the seating surface 12 in the deployed state. Since the height of the portion 3 can be adjusted to be low, the armrest height can be made appropriate.

  In addition, when the leg mounting part 5 has a massage mechanism, especially when the recessed part 10 which can arrange | position a leg like this embodiment is provided, the thickness (vertical direction in the accommodation state) of a leg mounting part In general, the maximum thickness (t) is relatively thick, about 150 mm to 250 mm. Therefore, the length of the movable range in the height direction of the armrest portion 3 is preferably 150 mm or more, and more preferably 250 mm or more, corresponding to the thickness t. This is because, even when the thickness t of the leg placement portion is relatively thick, it is easy to adjust to an appropriate armrest height in both the housed state and the deployed state.

  FIG. 10 is a side view of the chair-type massage machine 30 according to the second embodiment of the present invention, and shows a schematic configuration of the armrest height interlocking mechanism 31 provided inside the chair. Moreover, FIGS. 11-13 is the side view which showed the modification of embodiment of FIG. 10 to 13, the unfolded state is indicated by a solid line, and the accommodated state is indicated by a two-dot chain line.

  A chair type massage machine 30 shown in FIG. 10 includes an armrest height interlocking mechanism 31 including a height adjustment mechanism different from the height adjustment mechanism 8 of the chair type massage machine 1 described above. This armrest height interlocking mechanism 31 includes a first pulley 32 that is provided coaxially with the deployment rotation shaft 14 of the leg placement portion 5 and rotates integrally with the deployment rotation shaft 14, and a second pulley having a gear portion. 33, a pinion portion 34 that is a gear meshing with the second pulley 33, and a rack portion 35 that meshes with the pinion portion 34 and converts the rotational motion of the pinion portion 34 into linear motion in the vertical direction. Further, a belt 36 is stretched between the first pulley 32 and the second pulley 33 so that the rotation of the first pulley 32 is transmitted to the second pulley 33.

  When the deployed leg placement portion 5 is rotated around the deployment rotation shaft 14 so as to be in the accommodated state (see arrow Y1), the first pulley 32 also rotates in the same manner as the deployment rotation shaft 14, and the second pulley 32 rotates. The pulley 33 rotates in the same direction as the first pulley 32 (arrow Y2), and the pinion portion 34 rotates in the opposite direction to the second pulley 33 (arrow Y3), thereby moving the rack portion 35 upward. Therefore, the movable part 3a integrated with the rack part 35 also moves upward. On the contrary, when the leg mounting portion 5 in the accommodated state is rotated around the deployment rotation shaft 14 so as to be in the deployed state, each member of the armrest height interlocking mechanism 31 moves in the opposite direction to the above, and the movable portion 3a moves downward. Thus, in this chair type massage machine 30, when the rotation of the leg placement part 5 and the height adjustment mechanism of the armrest part 3 are interlocked and the leg placement part 5 is rotated so as to be in the accommodated state. The armrest portion 3 operates so as to be high, and when the leg placement portion 5 is rotated so as to be in a deployed state, the armrest portion 3 operates so as to be low. According to such a configuration, the armrest portion 3 moves up and down in an appropriate direction in conjunction with the rotation of the leg placement portion 5, so that it is possible to save time and effort for adjusting the height of the armrest portion 3. In the embodiment of FIG. 10, the rotation is transmitted by the pulley and the belt, but the rotation may be transmitted by a gear and a toothed belt.

  In the chair type massage machine 40 which is a modified example of FIG. 11, as in the embodiment of FIG. 10, the rotation of the leg placement unit 5 and the height adjustment mechanism of the armrest unit 3 are interlocked. In the example, the armrest height interlocking mechanism 41 is configured by combining a fluid pressure mechanism such as hydraulic pressure and a cam mechanism. Examples of the fluid include oil, air, water, and the like. Hereinafter, a hydraulic mechanism will be described as an example of the fluid pressure mechanism. The hydraulic mechanism is naturally provided inside the chair, but in FIG. 11, a hydraulic circuit (indicated by a JIS symbol) that is a part of the hydraulic mechanism is shown outside the chair for easy understanding. When the leg mounting portion 5 is rotated from the deployed state toward the accommodated state (see arrow Y5), the eccentric cam 42 provided integrally with the deployment pivot shaft 14 of the leg mounting portion 5 rotates in the same direction. Then, the first piston 43 is pushed in (arrow Y6), the movement is transmitted by hydraulic pressure, the second piston 44 is pushed up (arrow Y7), and the movable part 3a integrated with the second piston 44 moves upward. To do. When the leg placement unit 5 is in the unfolded state, the movable unit 3a moves downward due to the weight of the movable unit 3a. In addition, as shown in FIG. 11, the freedom degree of an interlocking operation | movement can be raised by providing the operation valve 45 and the non-return valve 46 in a hydraulic circuit.

  The chair type massage machine 50 which is another modification shown in FIG. 12 uses the armrest height interlocking mechanism 51 using a wire to interlock the rotation of the leg resting portion 5 and the height adjusting mechanism of the armrest portion 3. ing. One end of a first wire 53 and a second wire 54 is attached to a wire winding portion 52 that rotates coaxially and integrally with the deployment rotation shaft 14 of the leg placement portion 5. The other ends of the wires 53 and 54 are attached to a support member 55 that is integral with the movable portion 3a and is slidable in the vertical direction. When the leg placement unit 5 is rotated from the deployed state toward the housed state (arrow Y8), the wire winding unit 52 also rotates in the same direction, and this rotation is caused by the wires 53 and 54 intersecting at the intermediate position. The vertical movement of the support member 55 is converted, and the movable portion 3a moves upward (arrow Y9). When the leg placement unit 5 is rotated from the housed state toward the unfolded state, the movement is reversed and the movable unit 3a moves downward. In this example, two wires 53 and 54 are used, but one push-pull wire may be used instead.

  The chair type massage machine 60 which is another modified example shown in FIG. 13 has a leg mounting portion by means of an armrest height interlocking mechanism 61 using a link mechanism in which the ends of the constituent members are rotatably connected. The rotation of 5 and the height adjustment mechanism of the armrest 3 are interlocked. One end portion of the linear rod-shaped first member 62 is an upper portion in the vicinity of the deployment rotation shaft 14 of the leg placement portion 5 (a position above the deployment rotation shaft 14 when the leg placement portion 5 is in the deployed state). It is attached to be able to rotate. The other end portion of the first member 62 is fixed to one end portion of a second member 63 having a straight bar shape so as to be rotatable. Furthermore, the other end portion of the second member 63 is pivotally attached to the lower end portion of the support member 64 that is integral with the movable portion 3a and is slidable in the vertical direction. The second member 63 is rotatably attached to the chair body side at the longitudinal intermediate position 65. When the leg placing portion 5 is rotated from the deployed state toward the housed state (arrow Y10), one end of the first member 62 attached to the leg placing portion 5 so as to be able to answer is lowered downward, and as a result, the first member. 62 moves downward as a whole. Then, the second member 63 rotates about the longitudinal intermediate position 65, and moves the support member 64 upward (arrow Y11). When the leg placement portion 5 is rotated from the housed state toward the deployed state, the movable portion 3a moves downward due to the reverse movement.

  By providing various armrest height interlocking mechanisms as exemplified above, the height of the armrest portion 3 can be adjusted by interlocking the rotation of the leg placing portion 5 with the height adjustment mechanism of the armrest portion 3. Save time and effort. In each example described above, the armrest height interlocking mechanism is constituted by mechanical means, but may be other means such as electric means. For example, a rotation position detector that detects a rotation position of the leg placement unit 5 (for example, whether the leg placement unit 5 is in the accommodated state or the unfolded state), and a signal from the rotation position detector Thus, an electric height adjusting mechanism that moves the movable part 3a up and down can be exemplified.

  FIGS. 15-16 has shown an example of the rotation position detector of the leg mounting part 5 mentioned above, and FIG. 14 is a chair type massage provided with the electric height adjustment mechanism containing this rotation position detector. The machine 100 is shown. The rotation position detector 80 is installed at any position inside the leg placement unit 5, for example, in the vicinity of the deployment rotation shaft 14 of the leg placement unit 5 as shown in FIG. The rotation position detector 80 can be rotated by its own weight around a Hall IC 83 which is a magnetic sensor mounted on a substrate 82 disposed in the case 81 and a shaft 84 projecting from the case 81. It is comprised with the magnet part 85 which is a rotation body attached to the said axis | shaft 84 so that it may become.

  The case 81 is made of, for example, a synthetic resin such as ABS, nylon, polypropylene, or polyethylene, and the shaft 84 projects from an inner wall surface thereof. The magnet portion 85 has a substantially box shape as a whole, and is made of a synthetic resin such as ABS, nylon, polypropylene, polyethylene, and the like, similar to the case 81. A magnet 86 made of a rare earth magnet or the like is embedded in the magnet portion 85, and the magnetic flux density applied to the Hall element in the Hall IC 83 by the magnet 86 varies depending on the position of the magnet 86. Using this, it is detected whether the leg placement unit 5 is in the rotating position, for example, whether the leg placement unit 5 is in the accommodated state or in the deployed state. The case 81 and the magnet portion 85 can also be made of a metal such as aluminum.

  FIG. 15 shows the rotation position detector 80 when the leg placement unit 5 is in the accommodated state, and the magnet 86 and the Hall IC 83 are in a positional relationship apart from each other. Thus, when the rotation position detector 80 detects the accommodation state of the leg mounting part 5, based on this detection signal, rotation of the electric motor (illustration omitted) of the chair type massage machine 100 of the modification shown in FIG. The shaft 91 is rotated in a predetermined direction (clockwise direction in FIG. 14, see arrow Y13). Then, the gear 92 that rotates coaxially and integrally with the rotating shaft 91 rotates in the same direction, and the pinion portion 93 that meshes with the gear 92 rotates in the opposite direction to the gear 92 (see the arrow Y14). Is moved upward, and the movable portion 3a integrated with the rack portion 94 is moved upward.

  On the other hand, when the leg placement part 5 is rotated from the housed state to the unfolded state, the case 81 rotates approximately 180 degrees, and the magnet part 85 is always on the opposite side to the axially supported side (vertical direction) due to its own weight. The magnet 86 and the Hall IC 83 are opposed to each other and are positioned closest to each other (see FIG. 16). When the rotation position detector 80 detects the unfolded state of the leg rest 5 in this manner, based on this detection signal, the rotation of the electric motor (not shown) of the chair type massage machine 100 of the modified example shown in FIG. The shaft 91 is rotated in the direction opposite to that in the accommodated state (counterclockwise direction in FIG. 14). Then, the gear 92 that is coaxially rotated integrally with the rotary shaft 91 also rotates in the same direction, and the pinion portion 93 that meshes with the gear 92 rotates in the opposite direction to the gear 92 to move the rack portion 94 downward. Then, the movable part 3a integrated with the rack part 94 is moved downward.

  In addition, as long as the rotation position detector 80 of this embodiment is provided in the leg mounting part 5, the installation place is not specifically limited, It provides suitably other than the expansion | deployment rotation axis | shaft 14 vicinity of the leg mounting part 5. FIG. Can do. Further, not only one rotational position detector 80 but also two or more rotational position detectors may be provided.

  Furthermore, in the embodiment of FIGS. 15 to 16, the magnetic sensor is used for the rotational position detector, but other sensors such as a limit switch, an optical sensor, and an angle sensor can be used. For example, when an optical sensor is used, as shown in FIG. 17, a light emitting element 88 is provided at a location where the Hall IC 83 is disposed in FIG. 15, and a light receiving element (on the inner surface of the case 81 facing the light emitting element 88). (Not shown) may be provided. For example, when FIG. 17 is in the accommodated state, light from the light emitting element 88 is received by a light receiving element (not shown) without being blocked in this state. Then, when the leg placement unit 5 is rotated from the housed state to the deployed state and the rotation position detector 80 is rotated by approximately 180 degrees, the shield 87 that can rotate by its own weight is in a state of shielding light, The unfolded state can be detected as a state different from FIG. 17 (see FIG. 18). Further, when an angle sensor is used, an angle sensor is installed on the deployment rotation shaft 14 of the leg placement unit 5 and the rotation angle of the leg placement unit 5 is detected. It can be detected whether it is a state.

  In addition, the wired or wireless remote controller can be used to switch whether the rotation of the leg placement unit 5 and the height adjustment mechanism of the armrest unit 3 are linked or not. Moreover, it is also possible to perform the vertical movement of the armrest part 3 independently by the remote controller irrespective of the rotation of the leg placing part 5.

It is a perspective view in the deployment state of the chair type massage machine of a first embodiment of the present invention. It is a side view in the deployment state of the chair type massage machine of a first embodiment of the present invention. It is a perspective view in the accommodation state of the chair type massage machine of a first embodiment of the present invention. It is a side view in the accommodation state of the chair type massage machine of a first embodiment of the present invention. It is a perspective view of the chair side part in the state where the movable part was adjusted to the lowest position. It is a perspective view of the chair side part in the state where the movable part was adjusted to the highest position. It is the perspective view of the chair side part described with the exploded perspective view of a height adjustment mechanism. (A) is a figure which shows the state which the nail | claw engaging recessed part and the fixed nail | claw part engaged, (b) is a relationship between a nail | claw engaging recessed part and a fixed claw part by moving a movable part upward. FIG. 8 is a view showing a state in which the engagement is released (or a state where the engaging portion of the fixed claw portion is about to enter the claw engaging concave portion), and (c) is an operation lever operated to operate the claw engaging concave portion and the fixed claw. It is a figure which shows the state which released the engagement with a part. It is the figure which looked at the operation lever vicinity from the seat surface side. It is a side view which shows 2nd embodiment of this invention with the schematic of the armrest height interlocking mechanism. It is a side view which shows the modification of embodiment of FIG. 10 with the schematic of an armrest height interlocking mechanism. It is a side view which shows the other modification of embodiment of FIG. 10 with the schematic of an armrest height interlocking mechanism. It is a side view which shows the other modification of embodiment of FIG. 10 with the schematic of an armrest height interlocking mechanism. It is a schematic block diagram of the chair type massage machine of another modification. It is the schematic of the rotation position detector in the chair type massage machine of FIG. It is the schematic of the rotation position detector in the state rotated 180 degree | times from the state of FIG. It is the schematic of the modification of the rotation position detector of FIG. It is the schematic of the rotation position detector in the state rotated 180 degree | times from the state of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chair type massage machine 2 Seat part 3 Armrest part 4 Leg mounting surface 5 Leg mounting part 7 The back surface of a leg mounting surface 8 Height adjustment mechanism 9 Operation lever (operation part)
12 Seating surface at the time of accommodation
hs Height of the seating surface during storage (height of the back surface of the leg mounting surface in the storage state)
30, 40, 50, 60, 100 Chair type massage machine

Claims (4)

A leg rest having a massage mechanism and a seat portion, armrest portions provided on the left and right sides of the seat portion, a leg placement surface on which a user's leg is placed so as to be pivotally attached to the chair front portion A chair-type massage machine comprising:
The leg placement part is housed between the left and right armrests on the seat part with the leg placement surface facing downward by the rotation, and the back surface of the leg placement surface is used as a seating surface. And both the unfolded state in which the leg placement surface is directed upward and disposed on the front side of the seat portion are possible,
The armrest portion has a height adjustment mechanism, can be adjusted to a position higher than the height of the back surface of the leg placement surface used as a seating surface in the housed state, and in the deployed state, A chair-type massage machine that can be adjusted to a position lower than the height of the back.   2. The chair type according to claim 1, wherein an operation unit for operating the height adjustment mechanism is provided inside the armrest unit and can be concealed by the leg placement unit in the accommodated state. Massage machine.   The chair according to claim 2, wherein the operation unit requires an operation when the height of the armrest portion is lowered, and no operation is required when the height of the armrest portion is increased. Type massage machine.   The rotation of the leg placement part and the height adjustment mechanism of the armrest part are interlocked, and when the leg placement part is turned toward the accommodation state, the armrest part operates so as to be raised, The chair-type massage machine according to claim 1, wherein the armrest portion operates to be lowered when the leg placement portion is rotated toward the unfolded state.

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