KR20160124971A

KR20160124971A - Lever Device for Fixing of Rotary Wheel

Info

Publication number: KR20160124971A
Application number: KR1020150055283A
Authority: KR
Inventors: 박성수
Original assignee: 계양전기 주식회사
Priority date: 2015-04-20
Filing date: 2015-04-20
Publication date: 2016-10-31

Abstract

The present invention can quickly and easily couple or separate a rotary wheel to a spindle without a tool for tightening a fixing bolt and a fixing bolt when fixing or detaching the rotary wheel to or from the spindle. Tightening rod; A pressing means coupled to the clamping rod by a first fixed hinge; A release lever coupled to the pressing means by a second fixed hinge and exerting a latching and releasing function with the latch portion; An elastic member elastically supported between the pressing means and the release lever so that the release lever can exert an elastic force in a direction in which the release lever is engaged with the latch portion; A clamping means which is inserted through the clamping rod and provides the pressing force of the pressing means to the rotating wheel; And a lever member for fixing the rotating wheel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lever device for fixing a rotary wheel,

The present invention relates to a lever apparatus for fixing a wheel, and more particularly, to a lever apparatus for fixing a wheel, and more particularly, to a lever apparatus for fixing a wheel (for example, a grinder wheel, a bicycle wheel, a wheelbarrow, It is possible to quickly or easily engage or disengage the rotary wheel to the spindle without using a tool for tightening the fixing bolt and the fixing bolt and also to prevent loosening even if the vibration due to the operation of the rotary wheel is strongly transmitted due to the latch function will be.

1, the rotation wheel 10 is coupled to the spindle 12 and the fixed washer 14 of the rotary wheel 10 is pressed against the spindle 12. In order to fix the above- The fixing bolt 16 coupled to the rotating wheel 10 is spirally engaged with the spindle 12 to complete the mounting engagement of the rotating wheel 10. At this time, the fixing bolt 16 is fastened to the spindle 12 for fixing the rotation wheel 10 securely, or a special tool corresponding to the fixing bolt 16 is used for releasing the fastening bolt 16 for separation.

When the rotary wheel 10 is engaged or disengaged as described above, a separate dedicated tool for the fixing bolt 16 for tightening or loosening the rotary wheel 10 is used, so that the helical type of the fixing bolt 16 So that it is cumbersome to carry the dedicated tool at all times.

Particularly, when the special tool is not carried, the rotary wheel 10 can not be easily separated for mounting or replacing the fastening tightly. Therefore, a work stoppage occurs for a period of time for the operator to secure a dedicated tool, There was a problem to be done.

In addition, when the rotary wheel 10 is tightly engaged or disengaged, a strong force is applied to the wrist, arm, and shoulder of the worker. In this case, , There was a problem that the fatigue of the shoulders increased sharply, causing pain.

Korean Patent Publication No. 10-2012-0053322

SUMMARY OF THE INVENTION The present invention has been made to solve all the problems of the prior art, and it is an object of the present invention to quickly or easily engage or disengage a rotary wheel on a spindle without a tool for tightening a fixing bolt and a fixing bolt when fixing or detaching the rotary wheel to or from a spindle. The present invention is directed to a lever device for fixing a rotating wheel.

Another object of the present invention is to provide a lever device for fixing a rotating wheel, which prevents loosening even when vibration due to the operation of the rotating wheel is strongly transmitted due to the latch function.

According to an aspect of the present invention, there is provided a connector including: a fastening rod having a latch portion formed at one end thereof; A pressing means coupled to the clamping rod by a first fixed hinge; A release lever coupled to the pressing means by a second fixed hinge and exerting a latching and releasing function with the latch portion; An elastic member elastically supported between the pressing means and the release lever so that the release lever can exert an elastic force in a direction in which the release lever is engaged with the latch portion; A clamping means which is inserted through the clamping rod and provides the pressing force of the pressing means to the rotating wheel; And a lever member for fixing the rotating wheel.

Further, the latch portion is formed with a curved structure and is provided with an engagement along the outer surface of the latch portion.

Also, the pressing means is provided with a lever device for fixing a rotating wheel, which comprises a protruding portion formed on one side thereof, an eccentric cam portion hinged to the clamping rod, and a lever portion connected to the eccentric cam portion for rotating the eccentric cam portion .

Further, there is provided a lever device for fixing a revolving wheel, wherein a latching protrusion is formed on one end of the releasing lever so that the latching part can be engaged with or released from the latching part.

The pressing washer includes a coupling washer which is pierced through the coupling rod and transmits a pressing force to the fixing washer of the rotary wheel. The coupling washer which is in contact with the eccentric cam portion is rotatably provided with a curved- A wheel fixing lever device is provided.

As described above, by using the lever device for fixing a wheel according to the present invention, it is possible to eliminate the inconvenience that a separate special tool for tightening or loosening the rotary wheel at the time of engaging or disengaging the rotary wheel is always carried Can be expected.

Further, by using the lever device for fixing the wheel according to the present invention, it is possible to prevent the work from being interrupted during the time when the operator secures the dedicated tool when the special tool is not carried, thereby improving the continuity and productivity of the work You can expect.

Further, when the lever device for fixing the wheel according to the present invention is used, Even if the vibration due to the operation of the rotating wheel is transmitted strongly, the loosening does not occur, and the robustness and the safety due to the mounting and fixing of the rotating wheel can be further improved.

Further, when the lever device for fixing a wheel according to the present invention is used, it is possible to prevent the occurrence of pain in the wrists and arms of a worker, which is generated when the lever device is fastened or unfastened by using a special tool .

1 is a sectional view showing a main part showing a coupling structure of a general rotating wheel.
2 is a partially exploded perspective view of a lever apparatus for fixing a rotating wheel according to the present invention.
FIGS. 3A and 3B are perspective views respectively showing front and rear surfaces of a lever device for fixing a wheel according to the present invention. FIG.
4 is a cross-sectional view illustrating a lever apparatus for fixing a rotating wheel according to the present invention.
FIG. 5 is a sectional view showing a main portion of a lever device for fixing a rotating wheel according to the present invention.
FIGS. 6A and 8B are perspective views showing a state in which the lever device for fixing a wheel is fixed in the present invention, FIGS. 6A and 6B show a state before pressurization, FIGS. 7A and 7B show a state after pressurization, 8a and 8b show the operation of the latch lever for releasing the pressure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific configuration of a lever device for fixing a wheel according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 5, a rotating wheel fixing lever device 20 (hereinafter referred to as a lever device) firstly includes a coupling rod 24 forming the latch portion 22, a coupling rod 24 connecting the coupling rod 24, A release lever 28 which is hinged to the pressing means 26 and exerts a latching and releasing function with the latch portion 22 in a structure hinged to the pressing means 26, An elastic member 30 coupled between the levers 28 to provide a lubrication force and a pressing means 32 penetratingly connected to the connecting rod 24 and for transmitting the pressing force of the pressing means 26.

Concretely, at one end of the clamping rod 24, there is provided a latch portion 22 which is formed in a curved structure and has an engagement on an outer surface thereof. A first fixed hinge 36 is coupled to the center of the latch portion 22 and a lever portion 42 of the pressing means 26 is rotatably coupled to the first fixed hinge 36 .

The biasing means 26 includes eccentric cam portions 40 rotatably coupled to the first fixed hinge 36 in a structure that is disposed on both sides of the latch portion 22, And a lever portion 42 connected to the eccentric cam portion 40.

The eccentric cam portion 40 disposed on both sides of the clamping rod 24 is connected by a second fixed hinge 38 and a release lever 28 is rotatably coupled to the second fixed hinge 38. [ .

A latching protrusion 44 is protruded from one end of the release lever 28 so that the latching portion 22 can be engaged with or released from the latching portion 34. When the release lever 28 is rotated, The locking protrusion 44 is hooked or released (see Fig. 4).

One end 30a and the other end 30b of the elastic member 30 are engaged with the latching portion 22 so that the release lever 28 is engaged with the latching portion 22, And is fixed to the lever portion 42 and the release lever 28, respectively, so that elastic force acts on the lever portion 42 in the direction in which the lever portion 42 and the release lever 28 are engaged.

The pressing means 32 includes a pressing washer 46 and an engaging washer 48 penetratingly coupled to the clamping rod 24. The corresponding face of the engaging washer 48 which is in contact with the eccentric cam portion 40 at this time And a curved groove portion 50 having a curvature.

Referring to FIGS. 5, 6A and 6B, the use of the lever device 20 will be described with reference to FIGS. 5 and 8B. First, the rotary wheel 10 is coupled to the spindle 12, The clamping rod 24 of the lever device 10 which is coupled with the clamping washer 46 of the rotary wheel 20 is tightly fitted to the fixed washer 14 of the rotary wheel 10.

The lever portion 42 and the release lever 28 are held in a state in which the release lever 28 is in contact with the lever portion 42 in a state in which the fastening rod 24 has been fastened to the spindle 12 as described above. At this time, the latching protrusion 44 of the release lever 28 is disengaged from the engagement portion 34 of the latching portion 22 by this gripping so that the interval between the one end portion 30a and the other end portion 30b So that the elastic member 30 is compressed.

5, 7A, and 7B, the lever portion 42 and the release lever 28 are engaged with the corresponding hinges 36 and 38, respectively, The protruding portion 52 of the eccentric cam portion 40 is pressed against the engaging washer 48 by the shape of the eccentric cam portion 40 while the lever portion 42 is rotated downward. And is positioned as a curved groove portion 50. Since the engaging rod 24 is fastened to the spindle 12 when the projecting portion 52 of the eccentric cam portion 40 is seated in the curved groove portion 50, The pushing force exerted by the projecting portion 52 on the engaging washer 48 is transmitted to the clamping washer 46 as it is and consequently the clamping washer 46 presses the fixing washer 14 of the rotating wheel 10, The wheel 10 is firmly fastened and fixed.

When the projecting portion 52 of the eccentric cam portion 40 is positioned in the curved surface groove portion 50 of the engaging washer 48 as described above, the gripping is released, and by the elastic force of the elastic member 30, The release lever 28 is pivoted in the direction in which the clearance is widened from the lever portion 42. [

The latching protrusion 44 of the release lever 28 is latched by the latching portion 34 of the latching portion 22 and this state is strongly held by the elastic force of the elastic member 30, 42 and the release lever 28 can not be easily rotated.

In other words, even if the vibration due to the operation of the rotating wheel 10 is strongly transmitted to the lever device 20 due to the above-described latch function, the loosening does not occur.

8A and 8B, when the rotary wheel 10 is removed, the release lever 28 is pivoted so as to narrow the gap between the release lever 28 and the lever portion 42 to release the release lever 28 When the latching state of the latching portion 44 of the latch portion 22 and the latching portion 34 of the latching portion 22 is released, the pressing is stopped as shown in Figs. 6A and 6B, It is possible to separate the rotary wheel 10 by releasing the engagement of the rod 24.

Therefore, when the lever device for fixing the wheel according to the present invention is used, it is possible to eliminate the inconvenience of having to carry a separate special tool for the coupling parts for tightening or loosening the rotary wheel when the rotary wheel is engaged or disengaged And it is possible to alleviate the pain caused by the wrist and the arm of the worker, which is generated when the user tries to tighten or loosen the work using a special tool as in the conventional problems.

10: rotating wheel 12: spindle
14: Fixing washer 16: Fixing bolt
20: lever device 22: latch part
24: fastening rod 26: pressing means
28: release lever 30: elastic member
32: pressing means 34:
36: first fixed hinge 38: second fixed hinge
40: eccentric cam portion 42: lever portion
44: Clamping device 46: Clamping washer
48: engaging washer 50: curved surface groove
52:

Claims

A fastening rod 24 having a latch portion 22 formed at one end thereof;
A pressing means (26) coupled with the clamping rod (24) and the first fixed hinge (36);
A release lever 28 coupled by the pressing means 26 and the second fixed hinge 38 and exerting a latching and releasing function with the latch portion 22;
An elastic member (30) elastically supported between the pressing means (26) and the release lever (28) so that the release lever (28) can exert an elastic force in a direction in which the release lever (28)
A pressing means (32) penetratingly connected to the clamping rod (24) and providing the pressing force of the pressing means (26) to the rotary wheel (10);
Wherein the lever is fixed to the main body.

The method according to claim 1,
Wherein the latch portion (22) is formed with a curved structure and a latching (34) is formed along the outer surface of the latch portion (22).

The method according to claim 1,
The pressing means 26 includes an eccentric cam portion 40 hinged to the fastening rod 24 with a protruding portion 52 formed on one side thereof and an eccentric cam portion 40 for rotating the eccentric cam portion 40. [ And a lever part (42) connected to the lever (42).

3. The method of claim 2,
Wherein a latching protrusion (44) is formed on one end of the release lever (28) so that the latching portion (22) can be engaged with or released from the latching (34).

The method of claim 3,
The pressing means 32 includes a coupling washer 48 for transmitting a pressing force to the fixing washer 14 of the rotary wheel 10 through the coupling rod 24. The eccentric cam portion 40, Characterized in that the engaging washer (48) which is in contact with the engaging portion is formed with a curved surface groove portion (50).