JPS6132684Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of the vibration mechanism in a pine surge machine, that is, the mechanism that applies vibration to the pad. Its purpose is to enable assembly.

Generally, in the case of the vibration applying mechanism in a pine surge machine, the crank body is integrally formed with a crankshaft formed by shifting the center lines of both ends, and a weight part with a balance weight fixed to the tip. A structure has been proposed in which one end of the crank body is screwed into the tip of the motor output shaft (for example, Utility Model Publication No. 51-21592).

However, the crank body having such a structure has a problem that must be solved in that its shape is complicated and it takes time and effort to process, that is, the manufacturing cost is high.

The present invention is an attempt to improve the above-mentioned problems by forming the weight plate to which the balance weight is fixed to the tip and the crank cylinder separately, and forming the motor output shaft. By clamping the weight plate between the output shaft and the crank cylinder through the screwing action of the crank cylinder, the manufacturing cost of each part can be reduced, and at the same time, the assembly can be performed extremely easily and reliably. The motor is characterized by having a crank cylinder that biases the center line with respect to the output shaft screwed onto the tip of the output shaft of the motor, and between the crank cylinder and the output shaft there is a The gist is that a weight plate to which a balance weight is fixed to the tip is interposed via a suitable rotation prevention mechanism, and is configured to be clamped via the above-mentioned screwing action.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings.

FIG. 1 is a drawing showing the entire pine surge machine equipped with a vibration imparting mechanism according to the present invention, in which 1 indicates a case body formed into a vertical cylindrical shape with an appropriate diameter; Reference numeral 2 indicates a case lid body that covers the upper end opening of the case body 1. On the outer wall of the case body 1, a plurality of plate brackets 3 each having a horizontal portion at the upper end and having a substantially triangular plate shape are provided so as to protrude toward the outer diameter direction at regular intervals. A grip ring 4 is fixedly attached between the upper ends of the brackets 3. On the other hand, an annular flange 5 is provided on the inner wall of the case body 1 so as to protrude in the inner diameter direction along the inner wall surface.

Reference numeral 6 indicates a pad formed into an appropriate rectangular shape using an elastic body as a material. The pad 6 has a contact surface 6 formed with a gently concave curved surface on its lower bottom surface, and a recess 7 opening upward in the center of the pad 6 in correspondence with the case body 1. It is done as it is established. In addition, a connecting plate 8 for the case body 1 of the pad 6 is buried in a portion near the upper end of the pad 6 so as to surround the recess 7, while a connecting plate 8 for the case body 1 of the pad 6 is buried near the bottom end of the pad 6, that is, near the contact surface 6'. The diaphragm 9 is buried in such a position that the center portion of the diaphragm 9 is located on the same line as the bottom of the recess 7. That is, the diaphragm 9 is buried in the recess 7 with its central portion 9' being exposed.

10 indicates elastic struts that connect the connecting plate 8 and the flange 5. The elastic support 10 includes an elastic body 11 formed in a cylindrical shape using rubber as a material,
Consisting of bolt shafts 12, 12 fixed to both upper and lower ends of the elastic body 11 so as to sandwich the elastic body 11, and a pair of upper and lower nuts 13, 13 screwed into both bolt shafts 12, 12. The bolt shaft 12 projecting upward is inserted through the flange 5 and a flange 15 to be described later, and the same portion is tightened through a nut 13, while the bolt shaft 12 projecting downward is inserted into the connecting plate. 8 and tightened through a nut 13. The pad 6 is attached to the case body 1 in a state in which the elastic body 11 is pressed between the flange 5 and the connecting plate 8 through the tightening action of both nuts 13, 13.

Reference numeral 14 indicates a magnet motor built into the case body 1. The motor 14 has a flange 15 extending from its housing portion.
The upper end of the bolt shaft 12 is inserted into the flanges 5 and 15 as described above in an overlapping manner, and the nut 13 is screwed into the upper end of the bolt shaft 12 as described above. The output shaft 16 of the output shaft 16 is configured to extend downward.

Reference numeral 17 denotes a bearing part fixed to the lower end of the motor 14, and the output shaft 16 is supported by the bearing part 17.
As shown in the figure, a male threaded portion 18 is provided at the lower end of the output shaft 16. The tip of the male threaded portion 18 is arranged to face a position near the bottom of the recess 7 provided on the pad 6 side, that is, a position close to the diaphragm 9. And on the same diaphragm 9 is the same male screw part 1.
In order to fix the bearing part 19 in correspondence with 8,
The coaxial bearing part 19 is provided so that its center line is slightly offset from the bearing part 17.
Reference numeral 20 indicates a mounting plate for the bearing portion 19. or,
Reference numeral 21 indicates a sleeve provided to be loosely fitted to the output shaft 16. Reference numeral 22 denotes a weight plate to which an unbalanced weight 22' of a suitable weight is fixed to the tip thereof, and a rectangular hole-shaped opening 23 is provided at the base of the weight plate 22 as an example of a rotation prevention mechanism. 24 indicates a crank cylinder. Same crank tube 24
A cylindrical body 25 having an appropriate diameter is provided with a collar 26 having a larger diameter than the main body 25 at the upper end thereof, and the opening 2 is provided on the collar 26.
3, a prismatic boss 27 is integrally provided as an example of a rotation prevention mechanism, and a position slightly offset from the center line between the main body portion 25, the collar portion 26, and the boss 27 is provided. The male thread part 18
The female screw portion 28 is formed so as to be inserted therethrough in correspondence with the above.

Thus, the crank cylinder 24 has the sleeve 21 inserted into the output shaft 16, and the female threaded portion 28 is output while the opening 23 provided at the base of the weight plate 22 is engaged with the boss 27. Screwed into the male threaded part 18 on the shaft 16 side, both threaded parts 18, 2
The weight plate 22 is clamped between the sleeve 21 and the crank cylinder 24 through the screwing action of the parts 8, and the bearing part 19 fixes the main body part 25 of the crank cylinder 24 to the diaphragm 9 side. It is constructed so as to be supported.

In the above embodiment, as a rotation prevention mechanism for the weight plate 22, a boss 27 is provided protruding from the crank cylinder 24 side, and an opening 23 provided on the weight plate 22 side is engaged with the boss 27. However, the mechanism for preventing the weight plate 22 from rotating is not limited to the above-mentioned method. For example, a notch groove may be provided at the top of the crank cylinder 24, and the weight plate 22 may be placed in the notch groove. It is possible to arbitrarily select a conventionally known anti-rotation mechanism such as an engagement method. In addition, in the above embodiment, the output shaft 1
Although the male threaded portion 18 is provided on the 6 side, it is also possible to provide the male threaded portion 18 on the crank cylinder 22 side.

In the above embodiment, the sleeve 21 is loosely fitted to the output shaft 16, and the weight plate 22 is clamped between the output shaft 16 and the crank cylinder 24.
Although the upper surface of the weight plate 22 is clamped through the sleeve 21, a stepped portion is provided on the output shaft 16 side, and the upper surface of the weight plate 22 is directly attached to the output shaft 1 through the stepped portion.
It is also possible to make pressure contact with 6.

Next, its effect will be explained.

If the motor 14 is started through the ON operation of the switch, the driving force of the motor 14 will be transferred to the output shaft 1.
6 to the crank cylinder 24, and the crank cylinder 24 is driven to rotate.
Since the crank cylinder 24 is connected in a state that is slightly offset from the center line of the output shaft 16,
The rotational drive of the output shaft 16 is transmitted to the crank cylinder 24 as rocking rotation.

Therefore, the main body portion 25 of the crank cylinder 24 is supported by the bearing portion 19, and
is fixed to the diaphragm 9 via the mounting plate 20, so that the crank cylinder 24 swings and rotates while forcibly bending and deforming the diaphragm 9. The deformation action is transmitted to the pad 6 as vibration.

In addition, the upper end of the crank cylinder 24 and the sleeve 21
The base of the weight plate 22 is interposed therebetween via a rotation prevention mechanism formed by the boss 27 and the opening 23, and the base of the weight plate 22 is secured to the output shaft 16 through the screwing action of the crank cylinder 24. By doing so, the weight plate 22 rotates together with the crank cylinder 24. Since an unbalanced weight 22' is fixed to the tip of the weight plate 22, the crank cylinder 24 can be smoothly rocked and rotated by the centrifugal force of the unbalanced weight 22'. This is possible.

By applying the pad 6 to any part of the body while vibrations are being transmitted to the pad 6 in this manner, a massage effect on the body can be obtained through the vibration action.

The present invention is constructed as described above.
As described above, the crank cylinder 24 whose center line is biased with respect to the output shaft 16 is screwed together, and a suitable rotation prevention mechanism is provided between the crank cylinder 24 and the output shaft 16 to prevent the weight plate 22 from rotating. The weight plate 22 can be easily attached by engaging the base parts and clamping the base part of the weight plate 22 to the output shaft 16 of the crank cylinder 24 through a screwing action. With this structure, it is possible to obtain a vibration applying mechanism, and it is also possible to assemble the vibration applying mechanism easily and efficiently using simple operations.

Furthermore, in the present invention, as described above, the crank cylinder 24 is detachably attached to the output shaft 16 through a screwing action, and the boss 2 is provided on the crank cylinder 24 side.
By providing a rotation prevention mechanism such as No. 7, and tightening the crank cylinder 24 to the output shaft 16 while the weight plate 22 is engaged with the rotation prevention mechanism, the output shaft 16 is On the other hand, the crank cylinder 24
In order to attach the same crank cylinder 24 to the output shaft 16
At the same time as the work of screwing together the weight plate 22
The practical effect in this respect is extremely large.

As mentioned above, by transmitting the rotational drive of the motor 14 to the diaphragm 9 through the eccentric rotation of the crank cylinder 24 and forcibly bending and deforming the diaphragm 9 through the eccentric rotation of the crank cylinder 24, the pad In the case of the pine surge machine that applies vibration to the case body 1, there is no problem at all if the weight of the case body 1 side is large, but if the case body 1 side is relatively light, the case body 1 side is relatively lightweight. Contrary to the original purpose of applying vibration to the pad 6 from the main body 1 side, the reaction action of the diaphragm 9 causes a disadvantage in that vibration is generated on the case main body 1 side. As one means for solving the above-mentioned problems, a weight plate 22 to which an unbalanced weight 22' is fixed is attached to the tip, and the weight is attached to the case body 1 side through the centrifugal force of the weight plate 22. , a method of canceling the reaction of the diaphragm 9 can be considered, but in order to obtain the effect of canceling the reaction of the diaphragm 9 by the centrifugal force of the weight plate 22, as shown in FIG. It is necessary to attach the weight plate 22 to the eccentric side of the crank cylinder 24.

However, in the case of the present invention, as mentioned above, the boss 27
By providing a rotation prevention mechanism such as the one on the crank cylinder 24 side, the boss 2
By aligning the weight plate 7 with the eccentric direction of the crank cylinder 24 and providing a detent mechanism in advance, it is possible to prevent the weight plate 22 from protruding toward the eccentric side of the crank cylinder 24. It is possible to obtain it accurately. That is, the weight plate 22 can be easily positioned with respect to the crank cylinder 24.

Particularly in the case of the present invention, by adopting the above-mentioned assembly structure, it has become possible to reduce the manufacturing cost of each part and, by extension, the manufacturing cost of the entire pine surge machine.

[Brief explanation of the drawing]

Fig. 1 is a front view with a part cut away of a pine surge machine equipped with a vibration applying mechanism according to the present invention, Fig. 2 is an enlarged sectional view showing the vibration applying mechanism part, and Fig. 3 is an exploded view of the same. FIG. Also, the fourth
The figure is a wiring diagram of the pine surge machine according to the present invention. 1...Case body, 2...Case lid body, 3...
Bracket, 4... Grip ring, 5... Flange, 6... Pad, 6'... Contact surface, 7... Recess, 8... Connecting plate, 9... Vibration plate, 9'... Center portion, 10...Elastic strut, 11...Elastic body, 12
... Bolt shaft, 13 ... Nut, 14 ... Motor, 15 ... Flange, 16 ... Output shaft, 17 ...
...Bearing part, 18...Male thread part, 19...Bearing part, 20...Mounting plate, 21...Sleeve, 22
... Weight plate, 22' ... Unbalanced weight, 23 ... Opening, 24 ... Crank cylinder, 25
...Body part, 26...Brim part, 27...Boss, 2
8...Female screw part.

Claims (1)

[Scope of utility model registration request] The motor output shaft is rotatably supported by a bearing fixed to the motor housing, a sleeve is loosely fitted to the tip of the output shaft, and a crank cylinder whose center line is biased with respect to the output shaft is screwed. A weight plate with a balance weight fixed to the tip thereof is interposed between the crank cylinder and the sleeve via an appropriate rotation prevention mechanism, and is sandwiched by the above-mentioned screwing action, while a weight plate is attached to the diaphragm of the pad. A vibration imparting mechanism for a pine surge machine, in which the crank cylinder is freely rotatably supported on a fixed bearing part.