JPS6244140U - - Google Patents

Description

[Brief Description of the Drawings] Fig. 1 is a side view showing an embodiment of the shaft drive control device according to this invention, Figs. 2 and 3 are explanatory diagrams of the operation of Fig. 1, and Fig. 4 is a conventional shaft drive control device. FIG. 3 is a side view showing the shaft drive control device. In the figure, 1 is a first shaft, 5 is a key, 6 is a second shaft, 7 is a key, 8 is a connecting mechanism, 9 is a cylindrical body,
9a is one end surface, 9b is a stepped portion, 9c is a first notch groove, 9d is the other end surface, 9e is a stepped portion, and 9f is a second
10 is a drive control mechanism, 11 is a screw portion, 12 is a coupling device, 13 is a block, 14 is a guide plate, 16 is a bolt, 17 and 18 are a pair of nuts, 21 is a guide pin, 24 and 25 are a pair of springs. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) A first shaft and a second shaft are installed so as to be slidable in the axial direction, and the rotational force of the first shaft is transferred to the second shaft. a coupling mechanism for transmitting transmission to the first
, a drive control mechanism that slides the coupling mechanism in the axial direction as the second shaft rotates, and releases the coupling between the first and second shafts when the sliding movement exceeds a predetermined value. Axial drive control device. (2) The coupling mechanism is slidably inserted into the other end of the first shaft and one end of the second shaft, and a key or pin provided at the other end of the first shaft is inserted. A first notch groove for engagement is provided on one end surface, and a second notch groove for inserting and engaging a key or pin provided at one end of the second shaft is provided on the other end surface. Scope of claim for utility model registration, which is a cylindrical body
The shaft drive control device described in (1). (3) One end surface of the cylindrical body is formed in a spiral shape in one direction so as to form a stepped part when rotating in the other direction,
The shaft drive control device according to claim (2), wherein the other end surface is formed in a spiral shape in the other direction so as to form a stepped portion when rotating in one direction. (4) The drive control mechanism includes a threaded part that is fixed to the outer periphery of the first shaft or the second shaft and has a thread groove on the outer peripheral surface, and a coupling mechanism that is screwed onto the outer periphery of the threaded part. A shaft drive control device according to any one of claims (1) to (3), which comprises a coupling device for coupling. (5) The coupling device includes a block that is screwed into a thread groove on the outer peripheral surface of the threaded part, a guide plate that is fixed to the cylindrical body, and one end that is fixed to the block and the other end that slides on the guide plate. Utility model registration claim No. (4) consisting of a bolt movably inserted through the bolt, and a pair of nuts screwed to the other end of the bolt with the guide plate interposed therebetween and a predetermined gap therebetween. The shaft drive control device described in . (6) The guide plate has a guide pin installed parallel to the first and second axes slidably inserted therethrough, and slides along the guide pin. The shaft drive control device described in item 5). (7) The shaft drive control according to claim (6) of the utility model registration, wherein the guide plate has both sides pressed in opposite directions by a pair of springs whose hollow portions are respectively inserted through the guide pins. Device.