JPH0365046U

JPH0365046U -

Info

Publication number: JPH0365046U
Application number: JP12669589U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-06-25

Description

[Brief explanation of drawings]

第１図は本考案に係る正逆回転切換え装置の一
実施例を示す縦断面図、第２図は一方の回転軸部
分を断面して示す平面図、第３図は第１図の−
線断面図である。３……正逆回転切換え装置、４……他方の回転
軸（入力軸）、５……一方の回転軸（出力軸）、
６……摺動軸、７……正回転伝達手段、８，９…
…回転伝達部（ギア）、１０……逆回転伝達部材
（クラウンギア）、１１……カム体、１２……カ
ム従動子、１３……カム機構、１４，１５……弾
性体。 FIG. 1 is a longitudinal sectional view showing an embodiment of the forward/reverse rotation switching device according to the present invention, FIG. 2 is a plan view showing a section of one rotating shaft portion, and FIG.
FIG. 3... Forward/reverse rotation switching device, 4... Other rotating shaft (input shaft), 5... One rotating shaft (output shaft),
6... Sliding shaft, 7... Positive rotation transmission means, 8, 9...
...Rotation transmission unit (gear), 10... Reverse rotation transmission member (crown gear), 11... Cam body, 12... Cam follower, 13... Cam mechanism, 14, 15... Elastic body.

Claims

[Claims for Utility Model Registration] (1) Two rotating shafts spaced apart on the same axis,
A sliding shaft connected to one of the two rotating shafts so as to be integrally rotatable and slidable in the axial direction and facing the other rotating shaft, and a sliding shaft that is opposite to the other rotating shaft and rotates the other rotating shaft a positive rotation transmitting means formed between the shaft and the shaft and transmitting positive rotation only when abutting with a friction force of a certain level or more; and a rotation transmitting section provided on the outer periphery of the other rotating shaft and the sliding shaft, respectively. , which is rotatably provided intersecting the axes with respect to the other rotating shaft and the sliding shaft and slidably in the axial direction, and is always engaged with the rotation transmitting portion of the other rotating shaft;
The forward rotation transmitting means engages with the rotation transmitting portion of the sliding shaft only at the separated position and rotates together with the reverse rotation transmitting member that transmits the rotation in the opposite direction. and a cam mechanism that applies axial displacement to the sliding shaft to switch between forward rotation transmission and reverse rotation transmission, and inputs continuous rotation in the positional direction to one rotating shaft and transfers the rotation to the other rotating shaft. A forward/reverse rotation switching device characterized by alternately outputting forward rotation and reverse rotation. (2) An elastic body that always biases the sliding shaft toward the other rotating shaft, and an elastic body that always biases the reverse rotation transmission member toward the other rotating shaft and the sliding shaft. , engaging surfaces of the positive rotation transmission means of the other rotating shaft and the sliding shaft that engage with the other rotating shaft, and the rotation transmitting portion of the other rotating shaft and the rotation transmitting portion of the sliding shaft that engage with these. 2. The forward/reverse rotation switching mechanism according to claim 1, wherein each engagement surface of said reverse rotation transmission member is formed into a slope-like unevenness.