JPH03992Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a pine surge device that can increase or decrease the distance between a pair of left and right pine surge rollers.

[Conventional technology]

Japanese Patent Application Laid-open No. 75051/1984 is known as a pine surge machine capable of changing the mutual distance between a pair of left and right pine surge rollers.

[Problem that the invention attempts to solve]

In the pine surge machine described in the above-mentioned publication, the base of the arm is screwed from the center portion to a drive shaft with left-right reverse threads, and a pine surge roller is rotatably supported at the tip of the arm. Therefore, when the back of the body is in contact with the pine surge roller, if the drive shaft is rotated in the forward or reverse direction to expand or reduce the interval between the pine surge rollers, a load is applied to the pine surge roller, and the driving force is reduced. Since the transmission is carried out from the threaded shaft rearward through the arm, there is a problem in that the driving force is not transmitted smoothly and efficiently due to distortion between the base and the tip of the arm.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention uses a spiral gear that is coaxial with the pine surge roller to provide a driving force for expanding or reducing the interval between the pine surge rollers, and is supported by a lifting frame so as to be able to rotate forward and backward. The base of the link is slidably fitted to the shaft of the gear that meshes with the spiral gear, and the tip of the link is connected to the center. The pine surge roller is screwed onto the left and right reverse threads of the pine surge roller support shaft, which has left and right reverse threads, and the pine surge roller is rotatably fitted to the outer peripheral surface of the tip of the link that is screwed onto the threaded portion of the pine surge roller support shaft. It is.

[Effect]

If only the threaded rod 1 is controlled to rotate in the forward and reverse directions, the pine surge rollers 15A and 15B move up and down while maintaining a constant width interval, and pine surge is performed by vertically moving the pine surge rollers. When the polygonal drive shaft is controlled to rotate forward and backward, the rotation is transmitted from the spiral gear 4 through gears 5, 6, and 7 to the pine surge roller support shaft 8 fixed to the gear 7, and the left and right reverse threads of the pine surge roller support shaft are transmitted. Part 13A, 13
The links 10A and 10B screwed together with B are moved in the left and right direction. The left and right reverse threaded portions 13A, 13
Since the pine surge rollers 15A and 15B are rotatably fitted to the outer circumferential surface of the link part screwed to B, the distance between the pine surge rollers can be expanded or contracted to suit the user's physique. The pine surge effect is applied to the body by adjusting the roller width and expanding or contracting the interval between the pine surge rollers within a predetermined width.

〔Example〕

To explain the drawings showing the embodiment of the present invention, the guide rail 2 is rotated by the forward and reverse rotation of the threaded rod 1.
The pine surge roller support shaft 8 is configured to rotate via gears 5, 6, and 7 from a spiral gear 4 that is rotatably supported by a lifting frame 3 that is configured to move up and down along the vertical axis. The bases 11A, 11 of the links 10A, 10B are attached to the shaft 9 of the gear 5 which is engaged with the spiral gear 4.
B is slidably fitted into the links 10A and 10B.
Threaded portions 14A and 14B are provided at the tip portions 12A and 12B of the pine surge roller support shaft 8, which are left and right reverse screws 13A and 13B from the center portion, to be screwed together with the threaded portions 13A and 13B of the link. Pine surge rollers 15A and 15B are rotatably fitted to the outer peripheral surfaces of the tip portions 12A and 12B, respectively. 16 is a polygonal drive shaft passing through the spiral gear 4. Furthermore, this polygonal drive shaft 16
The drive shaft is configured to rotate forward and backward at the same time as the threaded rod 1 or only the drive shaft by a reversible motor or a suitable clutch mechanism (not shown). 17,1
Reference numeral 8 denotes a micro switch for controlling the left and right movement width of the links 10A and 10B, and this micro switch controls the forward and reverse rotation of the polygonal drive shaft. A rotation speed detection device 21 consisting of, etc. is provided,
This is connected to a microcomputer that stores several types of rotation speed patterns, long and short, and the microcomputer selects between forward and reverse rotation.
It can also be controlled.

[Effect of idea]

In the present invention, the pine surge roller support shaft 8 has right and left reverse threads 13A, 13B from the center part, and the pine surge rollers 15A, 15B are rotated on the outer peripheral surfaces of the links 10A, 10B that are screwed into the left and right reverse threads 13A, 13B, respectively. They are configured to fit together freely, transmit forward and reverse rotation of the spiral gear 4 to the pine surge roller support shaft via a gear train of gears 5 to 7, and expand or reduce the mutual spacing between the pine surge rollers 15A and 15B. Therefore, since the driving force for moving the pine surge roller is coaxial with the rotation axis of the pine surge roller, the driving force for expanding and reducing the distance between the pine surge rollers is efficiently transmitted, and the links can be moved smoothly from side to side without twisting. Move to. Therefore, it is effective in fir pine surge in which the interval between the pine surge rollers is repeatedly expanded and contracted at constant short distance intervals.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a side sectional view and FIG. 2 is an enlarged plan view of the main part, with a part thereof cut away. 8... Lifting frame, 4... Spiral gear,
5, 6, 7... Gear, 8... Pine surge roller support shaft, 9... Shaft, 10A, 10B... Link, 1
1A, 11B... Base of link, 12A, 12B
...Tip of the link, 13A, 13B...Left and right reverse threads, 14A, 14B...Threaded part of the link, 15
A, 15B... Pine surge roller.

Claims (1)

[Scope of utility model registration request] The pine surge roller support shaft is configured to be rotated through a gear train from a spiral gear that is supported by the elevating frame so as to be able to rotate in forward and reverse directions, and the base of the link is slid on the shaft of the gear that meshes with the spiral gear. A link tip part that is movably fitted and screwed into the left and right reverse threaded part of the pine surge roller support shaft which has a left and right reverse thread from the center part, and screwed into the threaded part of the pine surge roller support shaft. A pine surge device comprising a pine surge roller rotatably fitted onto the outer peripheral surface of the pine surge device.