JP3584677B2 - Massage machine - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chair-type massage machine.
[0002]
[Prior art]
Conventionally, as shown in FIG. 10, a state in which a foot massage table 3 for performing a massage with a foot placed thereon is rotatably mounted on the body 4 side, and the foot massage table 3 is projected forward of the seat portion 6. There is known a chair-type massage machine 1 which can be freely switched to a state of being stored below a seat 6. In the figure, reference numeral 20 denotes a backrest portion, and reference numeral 21 denotes a lever for rotating the foot massage table 3.
[0003]
Conventionally, as a method of rotatably connecting a foot massage table, for example, a pin hole is provided at a connection portion between a foot massage table side frame and a body side frame, and a connection pin is inserted into each pin hole and rotated. A method of freely connecting is adopted.
[0004]
[Problems to be solved by the invention]
However, in the conventional coupling method using the coupling pins, in order to insert the coupling pins, it is necessary to provide a clearance between the coupling pins and the main body side frame by enlarging the pin holes. For this reason, depending on the use condition, there is a problem that the coupling pin resonates with the vibration of the vibration unit built in the foot massage table, generating vibration noise due to rattling of the clearance and giving the user discomfort. In addition, there is a problem that the connecting pin itself is worn.
[0005]
The present invention has been made in view of the above-mentioned conventional example, and can prevent the generation of vibration noise due to the rattling of the clearance between the coupling pin and the main body side frame with a simple structure, thereby providing comfortable usability. In addition, the object of the present invention is to provide a massage machine capable of preventing the abrasion of the connecting pin. Further, while having a structure in which the vibration unit can be securely attached to the foot massage table side frame, the vibration unit can be moved from the vibration unit to the foot massage table. It is an object to provide a massage machine capable of suppressing transmission of vibration to a side frame.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, the present invention relates to a state in which the foot massage table 3 is rotatably attached to the main body side frame 4 and the foot massage table 3 is projected forward of the seat portion 6 of the main body 2. In a chair-type massage machine which can be freely switched to a state of being housed below the part 6, the pin-shaped massage machine is inserted into the pin holes 8 provided in the foot massage table side frame 5 and the pin holes 7 provided in the main body side frame 4. A coupling pin 9 for rotatably coupling the foot massage table side frame 5 to the main body side frame 4 and a pressing member for pressing the coupling pin 9 against the inner wall surface 7a of at least one of the pin holes 7 are provided. The foot massage table 3 is rotatably attached to the main body side frame 4, and can be freely switched between a state in which the foot massage table 3 protrudes forward of the seat section 6 and a state in which the foot massage table 3 is stored below the seat section 6. Ma In the machine 1, the foot massage table side frame 5 is inserted into the pin holes 8 provided in the foot massage table side frame 5 and the pin holes 7 provided in the main body side frame 4 so that the foot massage table side frame 5 can be freely rotated to the main body side frame 4. And a pressing member 10 for pressing the connecting pin 9 against the inner wall surface 7a of at least one of the pin holes 7 , and the foot massage table side frame 5 to the foot massage table. And the vibration unit 17 is attached to the main body side frame 4 by the pressing member 10 to prevent generation of vibration noise due to rattling of the clearance S between the coupling pin 9 and the main body side frame 4. As a result, comfortable usability can be obtained, and wear of the connecting pin 9 due to rattling can be prevented.
[0007]
Further, a vibration unit 17 for foot massage is attached to the foot massage table side frame 5 via a spring 14, and a hook portion 15 of the spring 14 hooked in a hook hole 16 of the foot massage table side frame 5 is bent. It is preferable that the vibration unit is formed in a substantially S-shape having a portion 15a and a reverse bending portion 15b. In this case, there is no fear that the spring 14 comes off from the hook hole 16 of the foot massage table side frame 5 and 17 can be securely attached to the foot massage table side frame 5 and the transmission of vibration from the vibration unit 17 to the foot massage table side frame 5 can be suppressed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described.
As shown in FIG. 3, the chair-type massage machine 1 includes a main body 2 having a seat portion 6, a backrest portion 20 having a built-in massage mechanism 19, and a foot massage table 3 for performing foot massage. Is composed of the subject. As shown in FIG. 4, the main body 2 includes a main body side frame 4 framed by a pipe, and the foot massage table 3 includes a foot massage table side frame 5 and a foot massage table side frame 5. And a vibration unit 17 to be attached.
[0009]
The main body side frame 4 includes, for example, a pair of left and right lower pipes 4a, a connecting pipe 4b connecting the lower pipes 4a, a pair of vertical pipes 4c erected from the center of each lower pipe 4a, and a pair of vertical pipes 4c. A pair of upper pipes 4d projecting forward from the upper ends is provided, and pin holes 7 are respectively formed in both side surfaces of the front ends of the pair of upper pipes 4d as shown in FIGS. The coupling pin 9 is inserted into the pin hole 7 from a direction orthogonal to the upper pipe 4d. The front end of each upper pipe 4d is open, and an external cap 11 that constitutes the pressing member 10 is attached to the opening 4e. Reference numeral 18 in FIG. 3 denotes an armrest arm formed in a substantially arc shape.
[0010]
As shown in FIGS. 3 to 5, the foot massage table 3 includes a foot massage table frame 5 rotatably coupled to an upper pipe 4 d of the main body frame 4. The foot massage table side frame 5 includes a quadrangular outer pipe 5a and a plurality of auxiliary pipes 5b. From the left and right rear ends of the outer pipe 5a, the upper pipe 4d of the main body frame 4 is formed. A pair of connecting pieces 5c connected to the front part project from each other, and each connecting piece 5c is provided with a pin hole 8 at a position corresponding to the pin hole 7 of the upper pipe 4d as shown in FIG. By inserting the connecting pin 9, the foot massage table side frame 5 is rotatably connected to the upper pipe 4d of the main body side frame 4 around the connecting pin 9 as a center of rotation. In the figure, 22 is a spacer, and 23 is a retaining ring.
[0011]
Here, a clearance S is provided between the coupling pin 9 and the main body side frame 4 so that the coupling pin 9 can be inserted. In the present invention, as shown in FIGS. A pressing member 10 for pressing the coupling pin 9 against the inner wall surface 7a of the pin hole 7 of the main body side frame 4 is attached to the upper pipe 4d of the main frame 4. The pressing member 10 includes, for example, an external cap 11 mounted through the opening 4 e of the upper pipe 4 d of the main body side frame 4, and an elastic body 12 such as rubber or sponge integrally provided at the tip of the external cap 11. Consists of The external cap 11 includes a head portion 11a with a flange that is locked in the opening 4e of the upper pipe 4d, and an insertion portion 11b inserted into the upper pipe 4d. A plurality of large-diameter pressure contact portions 11c that are pressed against the inner surface of the outer pipe 4 prevent the external cap 11 from falling out of the upper pipe 4d. The distal end of the elastic body 12 is concavely formed in a semicircular shape having substantially the same curvature as the outer peripheral surface of the connecting pin 9, and is brought into pressure contact with about half of the outer peripheral surface of the connecting pin 9, thereby connecting the connecting pin 9 to the main body frame 4. And presses against the inner wall surface 7a of the pin hole 7. The pressing member 10 may press the coupling pin 9 against the inner wall surfaces of both the pin holes 7 and 8, respectively.
[0012]
As shown in FIG. 6, the foot massage table side frame 5 can be freely switched by a lever 21 between a state protruding forward of the seat 6 and a state housed below the seat 6. In the present embodiment, a lever 21 for rotating the foot massage table 3 is provided on the side of the seat 6, and one end of a first link 22 is fixed to a lower end of the lever 21. The other end of 22 is pivotally connected to one end of a substantially L-shaped second link 23. On the other hand, one end of a third link 24 is pivotally attached to the lower surface of the foot massage table 3, and one end of a fourth link 25 is pivotally attached to a fixed portion 50 protruding from the lower surface of the seat 6. The other end of the second link 23 is pivotally connected to the other end of the fourth link 25, and the other end of the second link 23 is pivotally connected to a pivot point between the third link 24 and the fourth link 25. Thus, when the lever 21 is rotated in the direction of arrow A in FIG. 3, the first link 22 becomes horizontal and the second link 23 connects the third link 24 and the fourth link 25, as indicated by the solid line in FIG. By lifting, the third link 24 and the fourth link 25 are extended, and the foot massage table side frame 5 rotates in the arrow direction B to assume a substantially horizontal posture, so that the foot massage table 3 can be used. When the lever 21 is rotated in the direction opposite to the arrow direction A in FIG. 3, the first link 22 becomes vertical, and the second link 23 connects the third link 24 and the fourth link 25, as indicated by the solid line in FIG. By depressing, the third link 24 and the fourth link 25 are folded, and the foot massage table side frame 5 is placed in a substantially vertical posture, so that the foot massage table 3 can be stored below the seat 6. In FIG. 3, reference numeral 30 denotes a link spring, and 31 denotes a gas spring.
[0013]
A vibration unit 17 is arranged inside the outer peripheral pipe 5 a of the foot massage table side frame 5. The vibration unit 17 includes, for example, a vibration type or a roller type massage mechanism. As shown in FIGS. 4 and 5, the vibration unit 17 is attached to the hook hole 16 of the foot massage table side frame 5 via a spring 14. I have. In the present embodiment, the bases of the four springs 14 are connected to the four corners of the vibration unit 17, respectively, and hooks 15 are provided at the ends of the springs 14. The hooks 15 are attached to the foot massage table side frame 5. Hooks are respectively hooked in hook holes 16 provided at four locations corresponding to the four corners. The spring 14 serves to secure the vibration of the vibration unit 17 itself and to prevent the vibration of the vibration unit 17 from being transmitted to the foot massage table side frame 5. As shown in FIG. 7, the hook portion 15 of the spring 14 is formed integrally with a bent portion 15a and a reverse bent portion 15b bent in the opposite direction, and is formed in a substantially S-shape as a whole. As a result, the bent portion 15a is hooked when pulled by the force F in the direction of the arrow, and the reverse bent portion 15b is hooked when the force F 'in the opposite direction is applied, so that the hook portion 15 of the spring 14 moves toward the foot massage table. The structure does not come off from the frame 5.
[0014]
When the lever 21 is tilted in the arrow direction A in FIG. 6, the foot massage table side frame 5 is lifted in the arrow direction B via the first to fourth links 22 to 25 and locked in a horizontal posture. A foot massage can be performed by placing the foot on the foot massage table 3 and operating the vibration unit 17 by the operation device switch.
[0015]
At this time, a method in which the foot massage table side frame 5 is rotatably connected to the main body side frame 4 by the connecting pin 9 is adopted, and the clearance S is provided between the connecting pin 9 and the main body side frame 4 as in the related art. However, in the present invention, as shown in FIG. 1, the external cap 11 as the pressing member 10 is press-fitted from the opening 4 e of the upper pipe 4 d of the main body side frame 4 and provided at the tip of the pressing member 10. The elastic body 12 is pressed against the connecting pin 9. That is, the external cap 11 is pressed and held by the friction with the main body side frame 4 by the press-fitting of the external cap 11, and the elastic body 12 is pressed against the coupling pin 9. Thus, a preload is applied to the connecting pin 9 in the direction of the arrow C in FIG. 1 by the reaction force of the elastic body 12, and the connecting pin 9 is pressed against the inner wall surface 7 a of the pin hole 7, and the connecting pin 9 and the main body side frame 4 are pressed. Vibration noise due to backlash of the clearance S can be prevented. Therefore, in any use condition, the rattling of the connecting pin 9 can be eliminated, and vibration, resonance and the like can be prevented, and comfortable massage can be performed. In addition, by eliminating the looseness of the connecting pin 9, the connecting pin 9 itself can be prevented from being worn, and the assemblability of the connecting portion between the foot massage table side frame 5 and the main body side frame 4 is improved, and the reliability of the connection is improved. Is improved.
[0016]
On the other hand, the vibration unit 17 attached to the foot massage table side frame 5 has four corners connected to the foot massage table side frame 5 via four springs 14, and is provided on the foot massage table side frame 5. The hook portions 15 of the springs 14 hooked into the hook holes 16 are formed in a substantially S-shape, so that when the spring 14 is pulled by, for example, a force F in the direction of the arrow, the bent portion 15a is hooked, and When a reverse force F 'is applied due to a load or an impact during use, the reverse bent portion 15b bent in the opposite direction to the bent portion 15a is hooked, so that the spring 14 can be reliably prevented from coming off.
[0017]
Incidentally, the hook portion of the conventional spring is simply bent in a U-shape, and thus usually does not come off from the hooking hole because a tensile force F in the direction of the arrow is applied. When a force F 'in the direction indicated by the arrow is applied due to a shock or a shock, the hook portion is easily detached. In particular, when the tension of the spring is reduced to reduce the transmission of vibration to the foot massage table side frame 5, even if the transmission of vibration to the foot massage table side frame 5 can be reduced, the spring is more likely to come off. For this reason, there is a problem that the attachment of the vibration unit 17 is deteriorated.
[0018]
On the other hand, in the present invention, as shown in FIG. 7, the hook portion 15 of the spring 14 to be hooked on the foot massage table side frame 5 is formed in a substantially S-shape. When the bent portion 15a is hooked, and when the reverse force is applied, the reverse bent portion 15b is hooked, so that the hook portion 15 of the spring 14 does not come off from the foot massage table side frame 5, and the vibration unit 17 is attached. Sex becomes very good. Also, by preventing the spring 14 from coming off, the tension of the spring 14 can be reduced to prevent the transmission of vibration to the foot massage table side frame 5, and the vibration of the vibration unit 17 itself can be reduced by reducing the tension of the spring 14. Will be able to secure. As described above, the simple structure in which the hook portion 15 of the spring 14 is formed in a substantially S shape can prevent the vibration unit 17 from coming off, so that an arbitrary spring 14 constant (tensile load) can be set and a wide range of vibration states And transmission of vibration to the foot massage table side frame 5 and resonance can be easily and inexpensively eliminated.
[0019]
Another embodiment of the pressing member 10 is shown in FIGS. The configuration other than the pressing member 10 is the same as that of the embodiment of FIG.
FIG. 8 shows a state in which a tapered holding body 13a opened to the connecting pin 9 side is provided at the tip of the external cap 11, and the connecting pin 9 is pressed against the inner wall surface 7a of the pin hole 7 by the tapered holding body 13a. The tapered holding body 13a has a larger opening toward the distal end. For example, the diameter of the coupling pin 9 is φ, and the inner diameter of the pair of tapered holding bodies 13a on the proximal side is φ ′. In this case, by setting φ> φ ′, the coupling pin 9 can be reliably held by the tapered holding body 13a to prevent rattling. Moreover, since the holding body 13a is formed in a tapered shape, the dimensional variation between the connecting pin 9 and the external cap 11 can be absorbed, and the connecting pin 9 is securely fixed to the external cap 11 via the tapered holding body 13a. It can be held.
[0020]
Also, FIG. 9 shows a U-shaped holder having a protruding piece 26 protruding from the front end of the external cap 11 and being folded back from the front end of the protruding piece 26 in a direction parallel to and opposite to the protruding piece 26. 13B shows a case in which one end of 13b is provided integrally. For example, when the diameter of the connecting pin 9 is φ and the inner diameter of the U-shaped holding body 13b is φ ″, by setting φ> φ ″, the connecting pin 9 is securely held by the U-shaped holding body 13b and the backlash is generated. Not only can be prevented, but also the dimensional variation between the connecting pin 9 and the external cap 11 can be absorbed by the extension piece and the folded piece, so that the connecting pin 9 can be securely fixed to the external cap 11. Become.
[0021]
The structure of the pressing member 10 is limited to the external cap 11 having the elastic body 12 as in the above embodiment, or the external cap 11 having the tapered holder 13a or the U-shaped holder 13b. The shape is not limited as long as it is for pressing the coupling pin 9 against the inner wall surface 7a of at least one of the pin holes 7.
[0022]
【The invention's effect】
As described above, the invention according to claim 1 of the present invention is characterized in that the foot massage table is rotatably attached to the main body side frame, and the foot massage table is projected forward of the seat of the main body. In a chair-type massage machine that can be freely switched to a state of being stored under a seat, a foot massage table inserted into a pin hole provided in a foot massage table side frame and a pin hole provided in a body side frame. a coupling pin for rotatably coupling the side frame to the body side frame, and a pressing member for pressing the inner wall surface of at least one of the pin holes of the coupling pin, massage the foot massage table side frame for the foot The vibration unit is installed, so by putting your foot on the foot massage table and activating the vibration unit, you can comfortably massage your foot by vibration Are those can be performed, also even though clearance occurs between the coupling pin and the body side frame, by the connecting pin is pressed against the inner wall surface of the pin hole by pressing member, the coupling pin and the body side frame , It is possible to prevent the generation of vibration noise due to backlash of the clearance. Therefore, in any use state, the rattling of the connecting pin can be eliminated, and vibration, resonance and the like can be prevented, so that comfortable usability can be obtained. Furthermore, by eliminating rattling of the connecting pin, it is possible to prevent the wearing of the connecting pin itself, thereby improving the assemblability of the connecting portion between the foot massage table side frame and the main body side frame, and improving the reliability of the connection. It is something that can be done.
[0023]
According to a second aspect of the present invention, there is provided a spring in which a vibration unit for foot massage is attached to the foot massage table side frame via a spring via a spring, and is hooked in a hook hole of the foot massage table side frame. Is formed in a substantially S-shape having a bent portion and a reverse bent portion, so that, in addition to the effect of claim 1, when a force is applied in the pulling direction, a reverse force is applied. Even when is added, there is no fear that the hook portion is provided with the bent portion and the reverse bent portion from the hook hole of the foot massage table side frame, and the attachment of the vibration unit is extremely improved. In addition, since the spring can be prevented from coming off, the tension of the spring can be reduced to prevent transmission of vibration to the foot massage table side frame, and the vibration of the vibration unit itself can be secured by reducing the spring tension. . As a result, with a simple structure in which the hook portion of the spring is formed in a substantially S-shape, the vibration unit can be prevented from coming off, so that an arbitrary spring constant (tensile load) can be set and a wide range of vibration can be set. In addition to the above, it is possible to easily and inexpensively eliminate resonance and transmission of vibration to the foot massage table side frame.
[Brief description of the drawings]
FIG. 1 shows an example of an embodiment of the present invention, in which (a) is a plan sectional view and (b) is a front sectional view.
FIG. 2 is an exploded perspective view of a main body side frame, a connecting pin, and a pressing member of the same.
FIG. 3 is a side view of the massage machine.
FIG. 4 is an explanatory view showing a state where the foot massage table side frame and the vibration unit are attached to the same.
FIG. 5 is a side view of FIG. 4;
FIG. 6 is an explanatory view of a rotation operation of the foot massage table side frame by the lever of the above.
FIG. 7A is an enlarged view of a portion A in FIG. 4, and FIG. 7B is a cutaway perspective view of FIG.
8A and 8B are an exploded perspective view and an assembled view of another embodiment.
FIGS. 9A and 9B are an exploded perspective view and an assembled view of still another embodiment.
FIG. 10 is a perspective view of a massage machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Massager 2 Main body 3 Foot massage table 4 Body side frame 5 Foot massage table side frame 6 Seat part 7, 8 Pin hole 7a Inner wall surface 9 Connecting pin 10 Pressing member 14 Spring 15 Hook part 16 Hook hole 17 Vibration unit

Claims (2)

A chair-type massager in which a foot massage table is rotatably attached to the body side frame, and the foot massage table can be switched between a state in which the foot massage table protrudes forward of the seat and a state in which it is stored below the seat. A connecting pin inserted into a pin hole provided in the foot massage table side frame and a pin hole provided in the body side frame to rotatably connect the foot massage table side frame to the body side frame; A pressing member for pressing the coupling pin against the inner wall surface of at least one of the pin holes, and a vibration unit for foot massage is attached to the foot massage table side frame. . A vibration unit for foot massage is attached to the foot massage table side frame via a spring, and the hook portion of the spring hooked on the hook hole of the foot massage table side frame has a bent portion and a reverse bent portion. The massage machine according to claim 1, wherein the massage machine is formed in a substantially S shape.

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