JP2009131674A - Massage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hand-held type small and lightweight massage device having a constitution of changing a therapy range and capable of more safely treating. <P>SOLUTION: The massage device 1 comprises a body 2 and a head part 3 connected to the body 2 by a shaft part 4. A therapeutic element 60 and a therapeutic element 80 constituting the therapeutic part are aligned in the longitudinal direction of the head part 3. When only the therapeutic element 60 is intended to be used, the therapeutic element 80 is pressed into the head part by pressing a button 115. In this case, therapy is performed in spots. When the button 115 is pressed again, the therapeutic element 80 projects from the inside of the head part to bring the therapeutic elements 60, 80 into a state the heights of both elements are aligned linear in the longitudinal direction of the head part 3 to make the therapeutic range longer. A vent hole is equipped on the head part housing to discharge the heat generated in the inside of the head part. Cushioning rubber for shock absorption and noise reduction is set on the plunger. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a massage device, and more particularly, to a massage device that can be used by switching a treatment range when a user performs a hand-held massage treatment.

In a conventional handheld massager, there is one that reciprocally drives a treatment unit using a driving means such as a solenoid or a motor to perform a massage treatment for a user, and one treatment unit is divided into one A configuration driven by driving means is common. In this general configuration, there is a problem that the treatment range and treatment sensation are single, and the massage effect is monotonous. To solve this problem,
1) Configuration comprising a plurality of treatment units and drive means for individually driving these treatment units [2] and [4] below
2) Configuration comprising a plurality of treatment units, one drive means, and means for transmitting drive force to the plurality of treatment units [[1], [3], [5], [6] below]
Have been proposed.
[1] The rotation direction of the output shaft of the rotary drive device is changed, and power is transmitted only to a specific system with a one-way clutch from a multi-system power transmission unit according to the rotation direction. A configuration in which vibration / tapping is performed (see, for example, Patent Document 1).
[2] A pair of movable parts that operate “in the same way” are arranged in parallel inside the main body head, and a contact part is connected to each movable part so as to straddle from the left and right sides of the affected part. Configuration (see, for example, Patent Document 2).
[3] A configuration in which two treatment elements that can be reciprocated by one solenoid are provided so that the treatment range is widened without increasing the number of solenoids (for example, see Patent Document 3).
[4] The first treatment element, the second treatment element surrounding the first treatment element, and two drive means for individually driving them, so that point / soft massage can be performed without the need to replace the treatment element. (See, for example, Patent Document 4).
[5] A local convex portion to which the drive shaft is connected, and a wide-range convex portion that is supported by an elastic support portion provided on the drive shaft and is slidable with respect to the drive shaft. A configuration in which vibrations of both the local and wide-area convex portions are transmitted when lightly pressed against the human body, and the vibrations of the local convex portions are transmitted when pressed strongly (for example, see Patent Document 5).
[6] The treatment width of the long treatment part can be changed. Sub treatment elements are provided on both sides of the long treatment part, and the sub treatment element is connected to the long treatment element at the lower rotation position and is driven synchronously. In the position, it is connected to the housing and only the long treatment element is driven so that the wide / chopper can be struck (for example, see Patent Document 6).

Japanese Utility Model Publication No. 6-50641 Japanese Utility Model Publication No. 7-1929 JP 7-59832 A Japanese Patent Laid-Open No. 9-253148 JP-A-10-234804 JP 2000-350765 A

  However, in the above proposal, as for 1), since there are as many driving means as the number of treatment units, the treatment unit to be driven can be selected as appropriate, but there is a problem that the massager is large, heavy and expensive. is there.

  With regard to 2), although the problem of 1) can be solved with only one driving means, the configuration [1] includes a one-way clutch for selecting a treatment unit to be driven according to the rotation direction of the motor. In addition, the structure is complicated, and a plurality of treatment units are provided on both side surfaces of the massager. Therefore, it is necessary to change the massager each time the treatment unit is switched. In the configuration [3], since a plurality (two) of treatment units are always alternately or simultaneously driven, the monotony of the massage effect is not improved so much. In the configuration [5], it is said that a wide range of stimuli and local stimuli can be switched by changing the degree of pressing on the human body. The structure is in contact with the human body, the difference in massage effect is not clear, and the structure for switching the range is complicated. Furthermore, in the configuration [6], the width of the long treatment portion is switched, and even when the width of the long treatment portion is narrowed, the length of the treatment range remains long, and the change of the treatment range is not clear. .

  The present invention has been made paying attention to such problems, and a massage that can be used safely and comfortably by a user who has a structure that clearly changes the treatment range, has a small size and lightness suitable for a hand-held type. The purpose is to provide a vessel.

In order to achieve the object, the invention according to claim 1 is a massage device that includes a treatment portion having a length longer than the width and performs a massage operation by hitting the treatment portion.
The treatment section is composed of two treatment elements, a short treatment element and a long treatment element in the length direction, and one drive that directly drives one treatment element of the two treatment elements in the head housing. A first state where the distal ends of the treatment elements are accommodated in a state where the distal ends of the treatment elements protrude from the housing, and the distal ends of the two treatment elements are aligned in a straight line in the length direction; Further, there is provided switching means for switching a second treatment element tip that is short in the length direction to a second state in which the treatment element tip protrudes from the other treatment element tip, and a vent hole is provided in the head portion housing.

  According to this configuration, if the treatment operation is performed with the two treatment element tips (parts where the treatment element comes into contact with the treatment site) aligned in the longitudinal direction of the head portion, the treatment range is set to match the two treatment elements. Length. On the other hand, if the treatment operation is performed with one treatment element protruding from the other treatment element, only the protruded treatment element performs the treatment operation, and the treatment range is more than the state where two treatment elements are arranged in parallel. Since it becomes shorter, the treatment range can be changed by switching the two states.

  By providing a vent hole in the head housing, it is possible to avoid the danger caused by heat generated by the drive means. Therefore, the user can use the massager more safely.

  It is preferable that the treatment part is pivotally supported on one end side of the head part, and the center of the rotation is orthogonal to the longitudinal direction of the head part. Further, the head portion can be rotated and folded around an axis with respect to the main body grasped by a hand during use.

  According to a second aspect of the present invention, in the first aspect of the present invention, a buffer rubber is provided between the head portion housing that houses the driving means and a plunger of the driving means. Since the unpleasant mechanical vibration and vibration sound caused by the massager are reduced, the user can comfortably treat using the massager.

  The invention described in claim 3 is characterized in that in the invention described in claim 1, a switch for switching between program / manual operation is provided.

  The invention described in claim 4 is characterized in that, in the invention described in claim 1, it has one switch having both a power on / off switching function and a strength switching function of the treatment operation.

  According to a fifth aspect of the present invention, in the first aspect of the present invention, the head portion housing is configured by being fitted to each other by three housings.

  According to the present invention, it is possible to select and perform treatment in a state where two treatment elements are arranged in the longitudinal direction of the head portion or only treatment elements protruding from one treatment element. Can be changed. Moreover, such a configuration can be realized with a small size and lightness suitable for a hand-held type. Further, according to the present invention, heat generation, unpleasant mechanical vibration and noise caused by the driving means can be reduced, and the user can safely and comfortably treat using the massager according to the present invention.

It is an external appearance perspective view in the normal use state of the massage device concerning an embodiment. It is a front view of the massage device of FIG. It is an external appearance perspective view of the state which folded the head part of the massage device. It is a front view of the massage device of FIG. It is an external appearance perspective view which shows the treatment mechanism accommodated in the outer housing inside the head part of the massage device. FIG. 6 is an exploded perspective view showing a part of the treatment mechanism of FIG. 5. It is a disassembled perspective view which shows the remaining part of the treatment mechanism of FIG. It is a disassembled perspective view which shows the remaining part of the treatment mechanism of FIG. It is a perspective view of the secondary treatment element in the massage device. It is a front view of the secondary treatment element in the massage device. It is a top view (top view) of the secondary treatment element in the massage device. It is sectional drawing in line AA of FIG. In the massage device, it is the front view which looked at the inner housing from the inner side in the state where the secondary treatment element was fixed to the main treatment element. FIG. 14 is an enlarged perspective view of a main part in the state of FIG. 13 in the massager. In the massage device, it is a partially broken front view in a normal state when an auxiliary treatment element is fixed to a main treatment element. FIG. 16 is a partially broken front view of the massager in a state where the main treatment element is most retracted in the case of FIG. 15. In the massager, it is a partially broken front view in a normal state when an auxiliary treatment element is fixed to an inner housing. FIG. 18 is a partially broken front view of the massager in a state where the main treatment element is most retracted in the case of FIG. 17. In the same massage device, it is a principal part expansion side view when an auxiliary treatment element is fixed to the main treatment element. In the massage device, it is a principal part enlarged side view when an auxiliary treatment element is fixed to the inner housing.

  Hereinafter, the massage device of the present invention will be described based on embodiments.

  FIG. 1 is an external perspective view of the massage device according to the embodiment in a normal use state, FIG. 2 is a front view of the massage device of FIG. 1, and an external perspective view of the massage device in a state where the head portion is folded. FIG. 3 shows a front view of the massager shown in FIG. However, FIG. 1 and FIGS.

  The massage device 1 includes a main body 2 that is grasped by a hand during use, and a head portion 3 that is rotatably connected to the main body 2 by a shaft portion 4. The head portion 3 can be bent in the range of about 85 ° toward the main body 2 side, and causes the head portion 3 as shown in FIGS. 1 and 2 when used, and when not in use (when finished) as shown in FIG. The head unit 3 is folded as shown in FIG. 1 and 2 and the folded state of FIGS. 3 and 4, the head portion 3 is locked by the shaft portion 4, and the lock and the release thereof force the main body 2 and the head portion 3. This is done by moving them closer and away from each other.

  The main body 2 is provided with a power switch 7, a program / manual changeover switch 8, and a program selection / speed adjustment dial 9. The power switch 7 is used for switching on / off of the power and switching of the strength of the treatment operation (slap operation). The program / manual changeover switch 8 is for switching between a preset program operation and a manual operation. The program selection / speed adjustment dial 9 is used for switching eight types of preset programs during the program operation, and for switching the speed in eight steps during the manual operation. The main body 2 includes a circuit board (not shown) on which various electronic components are mounted.

  The head portion 3 is formed in an elongated shape in a direction perpendicular to the shaft portion 4, and includes an outer housing L11, an outer housing R12, and an outer housing U13. The outer housings L11, R12, and U13 are fitted together as outer housings. Combined and assembled together with screws. A main treatment element 60 and a secondary treatment element 80 (the two treatment elements are referred to as treatment parts) are accommodated in the longitudinal direction of the head part 3 (outer housing) with their tips protruding from the head part housing, The body part (for example, shoulder part) of the person to be treated is treated by moving the main treatment element 60 and the auxiliary treatment element 80 in and out of the head part 3 (striking action).

  A treatment mechanism 15 as shown in FIG. 5 is accommodated inside the outer housing constituted by the outer housings L11, R12, and U13.

  The treatment mechanism 15 has a structure as shown in exploded perspective views in FIGS. 6 to 8, and includes an inner housing L21 (FIG. 6) and an inner housing R22 (FIG. 7) having a shape as illustrated. The pair of inner housings L21 and R22 are fitted together as an inner housing and assembled together by screws. Various components are attached to the inner housing constituted by the pair of inner housings L21, R22, and the inner housing is disposed in the outer housing constituted by the outer housings L11, R12, U13.

  In FIG. 6, the treatment mechanism 15 is shown. The treatment mechanism is in the head portion housing and has a solenoid assembly 40 as drive means. The solenoid assembly 40 includes a support plate 41, a component 42 such as a bobbin / coil disposed inside the support plate 41, and a plunger 43 that is movably inserted into the center of the component 42. A lead wire 50 extending from the component 42 is connected to a circuit board provided inside the main body 2. A shock absorbing / sound absorbing buffer 44 is attached to one end (upper end) of the plunger 43, and a shock absorbing / sound absorbing rubber 45 is attached to the lower end of the support plate 41.

  A pair of plunger connectors 46 are fixed to the other end portion (lower end portion) of the plunger 43 with screws and nuts so as to sandwich the connector rubber 47, and the main treatment element connector 48 is attached to the connector rubber 47 by fitting. It has been. Further, the main treatment element connector 48 is fitted inside the main treatment element 60 (FIG. 7) and fixed by screws. In a state where the main treatment element connector 48 is fixed inside the main treatment element 60, the portion up to the plunger connector 46 is almost contained within the main treatment element 60. A spring 49 is inserted into the other end portion of the plunger 43, and this spring 49 constantly urges the plunger 43, that is, the main treatment element 60 in the direction of exiting the head portion 3. Note that the stroke of the reciprocating motion of the plunger 43 is, for example, about 6 mm.

  The solenoid assembly 40 is housed in the solenoid assembly housing portion 23 provided in the inner housings L21 and R22 with respect to the inner housings L21 and R22. Specifically, the solenoid assembly 40 is attached to the inner housings L21 and R22 by fitting the buffer rubber 45 of the solenoid assembly 40 into the fitting grooves 24 of the inner housings L21 and R22. A vent hole 25 is formed in the inner housings L21 and R22, and a vent hole 14 (FIG. 1) is also formed in the outer housings L11 and R12. Heat generated from the solenoid assembly 40 is generated by the vent holes 25. , 14 can easily escape to the outside of the massage device 1.

  The main treatment element 60 (FIG. 7) is located between the inner housings L21 and R22, and a rubber (not shown) placed on the outside, the plunger connector 46 of the solenoid assembly 40, the connector rubber 47, and the main treatment element. And a cavity 61 for accommodating the connector 48. The main treatment element 60 has a pair of arms 62 facing each other with a gap, and a hook receiver 70 (an engaged portion on the main treatment element side) is screwed to a boss 63 provided inside one arm 62. It is installed by. The hook receiver 70 has a fitting groove 70a in which a distal end side of a bar 91 of a fixed hook 90 (engagement portion), which will be described later, is selectively detachably fitted. The hook receiver 70 and the fixed hook 90 constitute an engaging means.

  The secondary treatment element 80 (FIG. 8) is located between the pair of arms 62 of the main treatment element 60, and has a rubber (not shown) that covers the outside and an arm 81.

  A shaft 65 is inserted into the through hole 82 formed in the base end portion of the arm 81 of the secondary treatment element 80 and the through hole 64 formed in each base end portion of the pair of arms 62 of the main treatment element 60. The both ends of the shaft 65 are inserted into the bosses 26 provided on the base end sides of the inner housings L21 and R22, so that the main treatment element 60 and the auxiliary treatment element 80 are connected to the inner housings L21 and R22 (outer housing L11, R12) is pivotally supported with respect to R12). As a result, the main treatment element 60 and the auxiliary treatment element 80 are individually rotatable about an axis orthogonal to the longitudinal direction of the head portion 3.

  Further, in the shaft 65, a spring 66 is fitted inside the arm 81 of the auxiliary treatment element 80, and this spring 66 takes out the auxiliary treatment element 80 from between the pair of arms 62 of the main treatment element 60. Always bias in the direction (outward from the head unit 3). The spring 66 is shown inside the pair of arms 62 of the main treatment element 60 in FIG. Further, in the shaft 65, a washer is provided between the arm 62 of the main treatment element 60 and the arm 81 of the sub treatment element 80 so that the main treatment element 60 and the sub treatment element 80 are individually and smoothly rotated. 67 is interposed.

  A fixing hook 90 made of components as shown in FIG. 8 is attached to the auxiliary treatment element 80. 9 is a perspective view, FIG. 10 is a front view, FIG. 11 is a plan view (top view), and FIG. 12 is a cross-sectional view taken along line AA in FIG. However, although the shape is somewhat different between that shown in FIG. 8 and that shown in FIGS. 9 to 12, the basic configuration is the same.

  The fixing hook 90 has a bar 91 and a bifurcated shaft foot 92 in which a through hole 93 is formed. A shaft 94 is inserted into the through hole 93 of the shaft foot 92 of the fixed hook 90, and the shaft 94 is supported by the shaft case 95. The shaft case 95 is fitted into the auxiliary treatment element 80 and fixed by screws 96. As a result, the fixed hook 90 protrudes from the auxiliary treatment element 80 and can rotate within the movable range around the shaft 94, and engages with the hook receiver 70 and the fitting groove 34 inside the inner housing R22 described later. The state and the disengaged state can be switched freely. In the shaft 94, a washer 97 for smooth rotation of the fixed hook 90 is interposed between the auxiliary treatment element 80 and the shaft leg 92 of the fixed hook 90. Further, a spring 98 is fitted into a portion of the shaft 94 inside the bifurcated shaft foot 92, and this spring 98 is always attached in the direction of the hook receiver 70 in which the fixed hook 90 is fixed to the main treatment element 60. Rush.

  On the other hand, FIGS. 7 and 13 (a front view of the inner housing R22 viewed from the inside with the auxiliary treatment element 80 fixed to the main treatment element 60), FIG. 14 (an enlarged perspective view of the main part in the state of FIG. 13), 15 (a partially broken front view in a normal state when the secondary treatment element 80 is fixed to the main treatment element 60), FIG. 16 (a partially broken front view in a state where the main treatment element 60 is most retracted in the case of FIG. 15). ), FIG. 17 (a partially broken front view in a normal state when the secondary treatment element 80 is fixed to the inner housing R22), FIG. 18 (a partially broken front view in a state where the main treatment element 60 is most retracted in the case of FIG. 17). FIG. 19, FIG. 19 (main part enlarged side view when the auxiliary treatment element 80 is fixed to the main treatment element 60), and FIG. 20 (main part enlarged side view when the auxiliary treatment element 80 is fixed to the inner housing R <b> 22). As shown in the figure), the fixing hook 90 was pushed. Release lever link 110 of the arc-shaped lever 111 (the release portion), and a mounting piece 112.

  The release lever link 110 has a mounting piece 112 fitted into a fitting portion 30 provided inside the inner housing R22, and one end portion 110a thereof is inserted into the boss 31 inside the inner housing L21. The end portion 110b is inserted through the through hole 32 of the inner housing R22. The other end portion 110b protrudes from the through hole 32 of the inner housing R22 (FIG. 5), and a release operation button 115 (operation portion) shown in FIGS. 1 to 4 is attached to this protruding portion. The release lever link 110 and the release operation button 115 constitute release means.

  The lever 111 of the release lever link 110 is inserted into a space 99 (FIG. 9) formed by the fixing hook 90 and the bar 91. Therefore, when the button 115 coming out of the outer housing R12 is pressed, the fixed hook 90 is moved to the opposite side of the hook receiver 70 against the biasing force of the spring 98 by the lever 111.

  On the other hand, when the bar 91 of the fixed hook 90 is fitted in the fitting groove 70a of the hook receiver 70 (FIGS. 13 to 16, FIG. 19), the secondary treatment element 80 is fixed to the main treatment element 60, When 91 fits into a fitting groove 34 (an engaged portion on the head portion side) formed on the inner side of the inner housing R22 and a fitting groove 35a of a guide rail 35 described later (FIGS. 17, 18, and 20), The secondary treatment element 80 is fixed to the inner housing R22.

  The sub-treatment element 80 has a position where the bar 91 is fitted in the fitting groove 34 as an upper limit fixed position, and a position where the bar 91 is fitted in the hook receiver 70 is a lower limit fixed position. Become. In the vicinity of the lower limit fixing position, the bar 91 and the hook receiver 70 are fitted, and the auxiliary treatment element 80 is engaged with the main treatment element 60 and operates integrally. Therefore, the lower limit fixed position of the secondary treatment element 80 corresponds to a position where the amount of protrusion from the head portion of the movable range in the treatment operation of the main treatment element 60 is maximized. Further, the upper fixed position of the secondary treatment element 80 is set above the upper limit position of the movable range in the treatment operation of the primary treatment element 60, and the secondary treatment element 80 is movable larger than the movable range of the primary treatment element 60. Have a range. In addition, when the button 115 is pressed in a state where the bar 91 is fitted in the fitting groove 34 or the hook receiver 70, the fitting is released.

  If the button 115 is pressed while the bar 91 is fitted to the hook receiver 70, the auxiliary treatment element 80 tries to move in the direction of coming out of the head portion 3 by the bias of the spring 66. In a state of being detached from the above, the fixing hook 90 comes into contact with a stopper 68 (FIG. 7) provided on one arm 62 of the main treatment element 60, so that the auxiliary treatment element 80 does not rotate beyond the lower limit fixing position.

  Specifically, when the button 115 is pressed while the bar 91 is fitted to the hook receiver 70 and the auxiliary treatment element 80 is pushed into the head portion 3 against the urging force of the spring 66, the bar 91 is moved into the inner housing R22. Is fitted into the fitting groove 34. As a result, the secondary treatment element 80 is fixed to the inner housing R22, and the secondary treatment element 80 is locked in the most retracted state in the head portion 3. In this state, only the main treatment element 60 performs the treatment operation. On the other hand, if the button 115 is pressed in a state where the bar 91 is fitted in the fitting groove 34 of the inner housing R22, the auxiliary treatment element 80 rotates in a direction protruding from the head portion 3 by the bias of the spring 66, 91 fits into the hook receiver 70. Thereby, the auxiliary treatment element 80 is fixed to the main treatment element 60, and the auxiliary treatment element 80 is locked in a state where it protrudes most from the head portion 3. In this state, the main treatment element 60 and the auxiliary treatment element 80 perform the treatment operation.

  When the auxiliary treatment element 80 moves within the movable range, a guide rail 35 is provided on the inner side of the inner housing R22 so as to be surely locked at either the upper limit fixed position or the lower limit fixed position. Yes. The guide rail 35 rotates to the opposite side of the hook receiver 70 against the urging force of the spring 98 when the auxiliary treatment element 80 is between the upper limit fixing position and the lower limit fixing position. In order to maintain this state (disengaged state), the fixing hook 90 is formed so as to come into contact with the distal end portion of the bar 91 extending in the lateral direction, and the guide rail 35 constitutes a release maintaining means.

  As a result, when the button 115 is pressed and the bar 91 is released from the engagement with the hook receiver 70 or the fitting groove 34 of the inner housing R22, the auxiliary treatment element 80 is in either the upper limit fixing position or the lower limit fixing position. The auxiliary treatment element 80 is securely locked at either the upper limit fixing position or the lower limit fixing position. The guide rail 35 has a fitting groove 35a in which the tip of the bar 91 is fitted at the upper limit fixing position of the auxiliary treatment element 80, and the bar 91, that is, the auxiliary treatment element 80 is fixed to the upper limit together with the fitting groove 34. Plays a role in fixing the position.

  On the other hand, the lever 111 of the release lever link 110 that releases the lock of the fixed hook 90 has an arc shape as shown in FIGS. 13 to 18, and this is done in order to suppress the generation of an unnecessary moment. This is because the lever 111 is brought into contact with the substantially central portion of the lever receiver 90a of the fixing hook 90 as much as possible regardless of the position of 90. That is, as the sub-treatment element 80 rotates between the upper limit fixing position and the lower limit fixing position, the fixing hook 90 draws an arc-shaped locus centering on the through hole 82 of the sub-treatment element 80. The lever 111 extends along the trajectory. As a result, the lever 111 comes into contact with the substantially central portion in the left-right direction of the lever receiver 90a of the fixed hook 90 regardless of the position of the fixed hook 90, so that an unnecessary moment that twists the fixed hook 90 does not occur. In addition, the displacement amount of the lever 111 when the auxiliary treatment element 80 is moved or stopped relative to the position of the fixed hook 90 (position of the auxiliary treatment element 80) does not change, and the pressing operation of the button 115 is performed with a constant force and a constant value. The amount is sufficient. As a result, the responsiveness of fixing and releasing the auxiliary treatment element 80 to the operation of the button 115 is improved.

  In the massage device 1 configured as described above, in order to cause the main treatment element 60 and the auxiliary treatment element 80 to contribute to the treatment operation, the fixed hook 90 is engaged with the hook receiver 70, and the auxiliary treatment element 80 is used as the main treatment element. Fix to 60. At this time, when the fixing hook 90 is fitted in the fitting groove 34 of the inner housing R22, the lock is released by pressing the button 115, and the auxiliary treatment element 80 is urged by the urging force of the spring 66 associated with the auxiliary treatment element 80. Rotates in a direction protruding from the head portion 3, and the fixed hook 90 engages with the hook receiver 70. In a normal state when the auxiliary treatment element 80 is integrally fixed to the main treatment element 60, the main treatment element 60 and the auxiliary treatment element 80 protrude from the head portion 3 by the spring 49 of the solenoid assembly 40 (FIG. 15). ).

  Here, when the power switch 7 is turned on, the main treatment element 60 and the auxiliary treatment element 80 enter the head portion 3 as the plunger 43 of the solenoid assembly 40 retracts against the biasing force of the spring 49. Move in the direction (FIG. 16). As the plunger 43 reciprocates, the main treatment element 60 and the auxiliary treatment element 80 repeat the entry / exit operation, and treatment (striking operation) is performed on the treatment site (for example, the shoulder). In this treatment operation, the main treatment element 60 and the auxiliary treatment element 80 are arranged in a straight line in the longitudinal direction of the head portion 3, so that the treatment operation is performed over a long linear range.

  When only the main treatment element 60 is desired to be used, the button 115 is pushed and the auxiliary treatment element 80 is pushed into the head portion 3. Then, the fixed hook 90 shifts from the engaged state with the hook receiver 70 to the engaged state with the fitting groove 34 of the inner housing R22, and the auxiliary treatment element 80 is fixed to the inner housing R22. In the normal state when the auxiliary treatment element 80 is integrally fixed to the inner housing R22, the main treatment element 60 protrudes from the head portion 3 by the spring 49 of the solenoid assembly 40. It remains retracted (FIG. 17).

  When the massager 1 is in contact with the treatment site such as the shoulder from above, the auxiliary treatment element 80 is pushed into the head unit 3 simply by pressing the release operation button 115. This is because the lock between the fixed hook 90 and the hook receiver 70 is released by pressing the release operation button 115, and the sub-treatment element 80 and the head portion 3 are relatively rotatable, so the lower surface is This is because the head portion 3 rotates relative to the secondary treatment element 80 supported by the treatment site such as the shoulder so as to descend by its own weight. At this time, until the auxiliary treatment element 80 reaches the upper limit fixing position, the bar 91 of the fixing hook 90 is released from the engagement with the hook receiver 70 or the fitting groove 34 of the inner housing R22 by the guide rail 35. Retained. Therefore, after the engagement with the hook receiver 70 is released, the fixed hook 90 can surely shift to the engagement state with the fitting groove 34 of the inner housing R22.

  Here, when the power switch 7 is turned on, only the main treatment element 60 moves in the direction of entering the head portion 3 as the plunger 43 of the solenoid assembly 40 retracts against the biasing force of the spring 49. (FIG. 18). Only the main treatment element 60 repeats the entry / exit operation, whereby treatment (striking operation) is performed on the treatment site (for example, the shoulder). In this case, since only the main treatment element 60 contributes to the treatment operation, the treatment operation is performed only in a short linear range.

  As described above, according to the massage device 1, the auxiliary treatment element 80 can be changed to a wide range of treatment operations by pushing the button 115 and taking the auxiliary treatment element 80 out of the head part 3, and the auxiliary treatment element 80 is pushed into the head part 3 by pushing the button 115. If it pushes in, it can change to the treatment operation of a narrow range, and the length of the treatment element (the main treatment element 60 and the auxiliary treatment element 80) extended in the longitudinal direction of the head part 3 can be made variable. And the structure which changes a treatment range clearly can be implement | achieved by the smallness and lightness suitable for a hand-held type.

DESCRIPTION OF SYMBOLS 1 Massager 2 Main body 3 Head part 4 Shaft part 15 Treatment mechanism 21, 22 Inner housing L, R
34 Fitting groove (engaged portion on the head side, engaging means)
35 Guide rail (Release maintenance means)
35a Fitting groove 40 Solenoid assembly 60 Main treatment element 70 Hook receiver (main treatment element side engaged portion, engagement means)
70a Fitting groove 80 Sub treatment element 90 Fixing hook (engagement part, engagement means)
91 Bar 110 Release lever link (Release means)
111 Lever (release part)
115 Release operation button (operation unit)

Claims (5)

A massage device that is provided with a treatment portion having a length longer than the width and performs a massage operation by hitting the treatment portion,
The treatment section is composed of two treatment elements, a short treatment element and a long treatment element in its length direction,
One driving means for directly driving one of the two treatment elements is accommodated in the head housing, and the treatment part is accommodated with the distal end of the treatment element protruding from the housing. And
Switching between the first state where the tips of the two treatment elements are aligned in the length direction and the second state where the tip of the treatment element short in the length direction protrudes from the other treatment element tips With means,
A massager characterized in that a vent hole is provided in the head part housing.   The massaging device according to claim 1, wherein a buffer rubber is provided between the head portion housing that houses the driving means and a plunger of the driving means.   The massage device according to claim 1, further comprising a changeover switch for switching between program / manual operation.   The massage device according to claim 1, further comprising a switch having both a power on / off switching function and a strength switching function of the treatment operation.   The massage device according to claim 1, wherein the head portion housing is configured to be fitted to each other by three housings.

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