JP2010159869A - Rotation transmission mechanism using one-way clutch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein, although there is the rotation transmission mechanism which uses a one-way clutch and a ratchet for transmitting positive-reverse rotations as one-directional rotation, it freewheels during reverse rotation, transmitting only one-directional rotation, and so it requires two arms for transmitting rotation as consistent one-directional rotation. <P>SOLUTION: This rotation transmission mechanism includes an input side bevel gear, a small bevel gear, and an output side bevel gear combined, the output side bevel gear being arranged in symmetry to the input side bevel gear, whereby the input side bevel gear and the output side bevel gear are rotated via the small bevel gear in the opposite directions consistently. A one-way clutch is incorporated therein to produce the positive-reverse rotations of the two bevel gears as one-directional rotation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rotation transmission mechanism that uses a one-way clutch, always makes forward / reverse rotation in one direction, and constantly transmits rotational power.

  There is a rotation transmission mechanism using a one-way clutch and a ratchet as a mechanism for transmitting forward / reverse rotation as one-way rotation, but only forward rotation and not transmission during reverse rotation. Also, in order to always change the forward / reverse rotation to rotation in one direction and transmit it, two one-way clutches and two ratchets must be used, and two arms for power transmission must be used.

  There is one that uses a one-way clutch and a ratchet to make the forward / reverse rotation in one direction, but it was idle during reverse rotation with only forward rotation. Further, in order to always transmit a reciprocating rotational motion such as a swing motion as a unidirectional rotational motion, it is necessary to attach two arms for forward rotation and reverse rotation to the shaft.

  A rotation transmission mechanism that uses input as one axis, always converts forward / reverse rotation to rotation in one direction, and constantly transmits power in one direction.

  By transmitting forward / reverse rotational motion such as peristaltic motion to one axis, it can be always taken out as rotational power in one direction with an integral structure.

  One of the devices has a structure in which the output is output from the central axis with respect to the input shaft.

  The structure that outputs at the center shaft is the input shaft 1, the bevel gear a2 connected to the input shaft 1, the small bevel gear a3 meshing with the bevel gear a2, and the bevel gear b4 arranged symmetrically with the bevel gear a2 across the small bevel gear a3. The output shaft 5. The input shaft 1 and the bevel gear a are connected to each other and supported by a bearing incorporated in the input flange 6 and the casing 7. The bevel gear b <b> 4 is supported by a bearing incorporated in the casing 7 and the output flange 8. A one-way clutch 9 is incorporated between the bevel gear a2 and the bevel gear b4 between the output shaft 5 and the one-way clutch is attached so as to transmit rotation in the same direction to the output shaft. The small bevel gear a <b> 3 is incorporated in the bearing case 11 with the small bevel gear support shaft 10 and the bearing, and is attached to the casing 7. Furthermore, the casing 7 is fixed and does not rotate. [Fig. 1] [Fig. 2]

  When the input shaft 1 rotates clockwise as viewed from the input shaft side, the bevel gear a2 also rotates clockwise. On the other hand, the bevel gear b4 rotates counterclockwise because it rotates via the small bevel gear a3. When the two one-way clutches 9 incorporated in the bevel gear a2 and the bevel gear b4 are incorporated so as to transmit power in the clockwise direction, the power of the output shaft 5 is transmitted by the bevel gear a2.

  When the input shaft 1 rotates counterclockwise, the bevel gear a2 rotates counterclockwise and the bevel gear b4 rotates clockwise. At this time, the one-way clutch 9 of the bevel gear a rotates idle, but the one-way clutch 9 of the bevel gear b4 transmits the rotation. Thus, even if the input shaft 1 repeats forward and reverse rotation, the output shaft 5 always rotates in one direction and can transmit power.

In addition, the casing can be used as an output unit for rotational power. The structure that outputs in the outer casing is symmetrical with the bevel gear c14 with the fixed shaft 12 for support, the bevel gear c14 connected to the input shaft 13 on the inside, the small bevel gear b15 that meshes with the bevel gear c14, and the small bevel gear b15. It consists of the arranged bevel gear d16. The bevel gear c14 and the bevel gear d16 are supported by a bearing on the fixed shaft 12, and the small bevel gear b15 is mounted on a small bevel gear shaft 17 attached to the fixed shaft 12. A one-way clutch 18 is incorporated outside the bevel gear c14 and the bevel gear d16 and supports an outer casing 19. The one-way clutch 18 is attached to the outer casing 19 so as to transmit rotation in the same direction.
[Fig. 3] [Fig. 4]

  When the one-way clutch 18 is incorporated so as to transmit power when the one-way clutch 18 is rotated clockwise, the output of the outer casing is the casing 19 via the one-way clutch 18 of the bevel gear c14 when the input shaft 13 rotates clockwise. Power is transmitted to and rotates. At this time, the bevel gear d16 rotates counterclockwise because it rotates via the small bevel gear b15, and the one-way clutch 18 of the bevel gear d16 rotates idle.

  When the input shaft 13 rotates counterclockwise, the bevel gear c14 rotates counterclockwise, and the one-way clutch 18 of the bevel gear c14 rotates idle. At this time, the bevel gear d16 rotates clockwise, the one-way clutch 18 of the bevel gear d16 transmits power, and the casing 19 rotates clockwise.

  As the power transmission bevel gear, it is possible to use a top that can transmit power by frictional force.

Structural drawing (casing fixed-inner shaft output) Sectional view (1) Structural drawing (casing fixed-inner shaft output) Sectional view (2)

1, input shaft 2, bevel gear a
3, small bevel gear a
4, bevel gear b
5, output shaft 6, input flange 7, casing 8, output flange 9, one-way clutch 10, small bevel gear support shaft 11, bearing case 12, fixed shaft 13, input shaft 14, bevel gear c
15, small bevel gear b
16, bevel gear d
17, small bevel gear shaft 18, one-way clutch 19, casing

Claims (1)

  A rotation transmission mechanism that uses a one-way clutch that uses a single input shaft, always converts reciprocating rotation to rotation in one direction, and constantly transmits rotational power.

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