JPH0682455U - Cam with function of fine adjustment of operating point - Google Patents

Abstract

(57) [Summary] [Structure] Shaft insertion hole 7 of cam body 6 and point of action 6a
Slit 9 of required depth so as to cross it between
To provide. A threaded portion 10 for a fine adjustment screw is provided on the side surface of the cam body 6.
Are integrally projected. The threaded portion 10 of the fine adjustment screw is provided with a screw hole 11 in a direction intersecting with the slit 9, and the fine adjustment screw 13 is screwed into the screw hole 11. [Effect] It is possible to easily perform fine adjustment of the operating point of the cam without requiring skill.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cam with a function of finely adjusting the operating point.

[0002]

[Prior art]

 For actuators such as valves and dampers, a cam is used to control the actuators, and a method of activating a micro switch is adopted. FIG. 2 shows a conventional cam, where 1 is a cam, 1a is an action point, 2 is a shaft insertion hole, 3 is a screw hole, and 4 is a fixing screw. Reference numeral 5 is a rotating shaft.

However, when the stop position of the shaft 5 is set, the cam 1 must be fixed so that the action point 1a of the cam 1 is at an appropriate position with respect to a micro switch (not shown). However, this adjustment work requires repeated fine adjustments and confirmations of the fixed position of the cam, and if the tightening mark of the fixing screw is attached to the shaft 5, it will be damaged. Adjustment becomes difficult. Therefore, this adjustment work requires skill, an unskilled person takes a long time, and production efficiency cannot be improved.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and a slit having a required depth is formed in the cam body so as to cross the shaft insertion hole and the point of action, and is integrally projected on the side surface of the cam body. The fine adjustment screw is screwed into the threaded portion of the fine adjustment screw so that it intersects with the slit, and after fixing the cam body to the shaft at the approximate position, turn the fine adjustment screw to finely adjust the position of the action point. The purpose is to provide a cam that can be done.

[0005]

[Means for Solving the Problems]

 Thus, the gist of the present invention is that a slit having a required depth is provided so as to cross the shaft insertion hole of the cam body and the point of action, and the opening of the above-mentioned slit of the cam body is provided. The threaded portion of the fine adjustment screw is integrally projected on the side surface of the section side, the threaded portion of the fine adjustment screw is provided with a screw hole in the direction intersecting with the slit, and the fine adjustment screw is screwed into the screw hole. It is a cam with a function of finely adjusting the point of action, which is characterized by matching.

[0006]

[Action]

 Next, the operation of the present invention will be described. First, the fixing screw is tightened to fix the cam body to the shaft, but the position may be rough. Then, after that, the fine adjustment screw is rotated and advanced, and the tip end portion protruding into the slit pushes out the portion on the side of the action point of the cam body. As a result, the point of action is displaced by the amount by which the fine adjustment screw is advanced. Therefore, the fine adjustment of the action point can be easily performed by turning the fine adjustment screw.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the present invention. In the figure, 6 is a cam body, and 6a is its point of action. Reference numeral 7 is a shaft insertion hole, and 8 is a screw hole for a fixing screw.

Numeral 9 is a slit provided between the shaft insertion hole 7 of the cam body 6 and the point of action 6 a so as to cross the point of action, and the portion between the deepest portion and the side surface of the cam body 6 is a hinge. It has a required depth so that it acts as an indicator. Reference numeral 10 denotes a threaded portion of a fine adjustment screw integrally provided on the side surface of the cam body 6 on the opening side of the slit 9. Reference numeral 11 denotes a screw hole provided in the threaded portion 10 of the fine adjustment screw in a direction intersecting with the slit 9. Reference numeral 12 is a fixing screw that is screwed into the screw hole 8, and 13 is a fine adjustment screw that is screwed into the screw hole 11.

However, in the case of the present embodiment, first, the cam body 6 is fixed to the shaft at a rough position, and then the fine adjustment screw 13 is screwed to shift the action point 6a to a required position.

[0010]

[Effect of device]

 The present invention has the configuration and operation as described above, and first fixes the cam main body to the shaft at an approximate position and then finely adjusts the position of the action point by turning the fine adjustment screw. Therefore, it is not necessary to loosen the fixing screws one by one and adjust the position of the cam main body to confirm the position as in the conventional case. In addition, the adjustment range can be predicted by the angle and the number of turns of the fine adjustment screw. Therefore, even an unskilled person can easily make fine adjustments to the working points. In addition, since it is not necessary to tighten and loosen the fixing screw many times as in the past, scratches due to the tightening mark of the fixing screw are reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of a conventional cam.

[Explanation of symbols]

 6 Cam body 6a Point of action of cam body 7 Shaft insertion hole 8 Screw hole 9 Slit 10 Threaded part of fine adjustment screw 11 Screw hole 12 Fixing screw 13 Fine adjustment screw

Claims (1)

[Scope of utility model registration request] 1. A slit having a required depth is provided so as to traverse the shaft insertion hole of the cam body and the point of action, and a fine adjustment screw is provided on a side surface of the cam body on the opening side of the slit. A threaded portion is integrally provided so as to project, a threaded hole in a direction intersecting with the slit is provided in the threaded portion of the fine adjustment screw, and the fine adjustment screw is screwed into the screw hole. Cam with fine adjustment function.