KR20100027564A - Dog clutch - Google Patents

Abstract

The present invention relates to a dog clutch, and an object of the present invention is to provide a dog clutch that can achieve a clutch on state without a catch or impact by one clutch on operation at all times even when the dog clutch does not rotate.

A central axis having an axial hole and a radial through hole; A first dog clutch member rotatably mounted to the outside of the central axis; A second dog clutch member slidably supported on the outside of the central axis and mounted to be relatively rotatable so as to be engaged and disengaged from the first dog clutch member; An elastic member for pressing the second dog clutch member to move to a fitting position; Guide means engaged with the control shaft through a radial hole in the central axis to guide the second dog clutch member to the disengaged position; And a control shaft which is inserted into the axial hole of the central axis and moved in the axial direction or rotates relative to the central axis, thereby guiding the guide means to the disengaged position and moving to the engaging position.

Description

Dog clutch {DOG CLUTCH}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a dog clutch used for switching means of a multi-stage transmission, and in particular, a first dog clutch member connected to a rotating transmission member rotatably supported on a central axis, and the first dog clutch member. An improvement of a dog clutch having a second dog clutch member slidably supported on the central axis so as to be engaged and disengaged therefrom.

In the conventional dog clutch, since the front end surfaces of the dog claws of the first and second dog clutch members are flat, the second dog clutch member is shifted to the first dog clutch member side in order to bring the clutch on. In this case, the tip faces of the dog's claws frequently collide with each other, and the repetition of the shift operation may be inevitable. In particular, when the clutch does not rotate, it may not be possible to put the clutch on.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dog clutch which enables a clutch on state to be smoothly obtained without a shock by always performing one clutch on operation even when the clutch is not rotated. It is done.

In order to achieve the above object, the present invention includes a central axis having an axial hole and a radial through hole; A first dog clutch member rotatably mounted to the outside of the central axis; A second dog clutch member slidably supported on the outside of the central shaft and mounted to be relatively rotatable so as to be engaged and disengaged from the first dog clutch member; An elastic member which presses the second dog clutch member to move to a fitting position; Guide means engaged with the control shaft through a radial hole in the central axis to guide the second dog clutch member to the disengaged position; And a control shaft inserted into the axial hole of the central axis and configured to move in the axial direction or rotate relative to the central axis, thereby guiding the guiding means to the disengaged position and moving to the engaged position. It is done.

In particular, the elastic member is preferably a coil spring or a dish spring.

Further, it is preferable to further include a sliding member such as a bearing between the guide means and the second dog clutch member to reduce friction.

A dog clutch is provided so that the clutch on state can be smoothly obtained without a shock by a single clutch on operation even when the clutch is not rotating.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on the suitable Example of this invention shown in an accompanying drawing.

1 is equipped with a dog clutch according to the first and second embodiments of the present invention.

A central axis having an axial hole and a radial through hole;

A first dog clutch member rotatably mounted to the outside of the central axis;

A second dog clutch member slidably supported on the outside of the central shaft and mounted to be relatively rotatable so as to be engaged and disengaged from the first dog clutch member;

An elastic member which presses the second dog clutch member to move to a fitting position;

Guide means engaged with the control shaft through a radial hole in the central axis to guide the second dog clutch member to the disengaged position;

And a control shaft inserted into the axial hole of the central axis to move in the axial direction or rotate relative to the central axis, thereby guiding the guiding means to the disengaged position and moving to the engaged position.

The above preferred embodiments are illustrated and described for the purpose of illustrating not only the structural and functional technical ideas of the present invention, but also for the purpose of illustrating the method of using the preferred embodiments. It can be changed without implementation. Accordingly, the invention is intended to embrace all such modifications as fall within the scope of the spirit of the appended claims.

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Claims (5)

A central axis having an axial hole and a radial through hole; A first dog clutch member rotatably mounted to the outside of the central axis; A second dog clutch member slidably supported on the outside of the central shaft and mounted to be relatively rotatable so as to be engaged and disengaged from the first dog clutch member; An elastic member which presses the second dog clutch member to move to a fitting position; Guide means engaged with the control shaft through a radial hole in the central axis to guide the second dog clutch member to the disengaged position; And a control shaft inserted into the axial hole of the central axis and configured to move in the axial direction or rotate relative to the central axis, thereby guiding the guiding means to the disengaged position and moving to the engaged position. Dog clutch made with. The dog clutch of claim 1, wherein the elastic member is a coil spring or a disc spring. The dog clutch according to claim 1, further comprising a sliding member such as a bearing between the guide means and the second dog clutch member. 2. The dog clutch according to claim 1, wherein the control shaft has a cam surface in the axial direction and is controlled to engage and disengage the clutch by rotating relative to the central axis. The dog clutch of claim 1, wherein the central axis does not rotate.

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