KR20020042909A - Unrocking apparatus for lever - Google Patents

Abstract

PURPOSE: A drive lever release apparatus is provided to easily release drive lever by causing a linear motion through the rotating force applied centering from a hinge. CONSTITUTION: A driver lever release apparatus comprises a driving body(12); a drive lever housing(14) mounted beneath an end of the driving body; a drive lever(20) installed to be elastically supported at a compression spring(18) inserted into a hole(16) formed at the drive lever housing; a frame(22) installed beneath the other end of the driving body, and extended in a lengthwise direction of the driving body such that an end of the frame is extended near to an end of the drive lever; a lever hinge(24) installed to a portion interconnecting the driving body and the frame, such that the driving lever is rotatable at the portion connected to the frame; and a drive lever release unit installed to the frame, and which releases the drive lever centering from a hinge point. The drive lever release unit includes a hinge support(26) installed at the end of the frame; an operation bar(30) installed, through a hinge(28), at an end of the hinge support, so as to rotate the hinge; and a torsion spring(32) interposed between the end of the frame and the operation bar, and which presses the drive lever when the bottom surface of the drive lever housing pushes the operation bar.

Description

Drive lever release device {UNROCKING APPARATUS FOR LEVER}

The present invention relates to a device for releasing a drive lever bound by a large force by a compression spring, and more particularly, to a drive lever releasing device capable of releasing a drive lever easily and quickly with a small force by using two hinges and an operation bar.

The driving lever releasing device is a device in which one end of the driving lever is turned on / off while the driving body rotates when a load is applied to the driving body on which the driving lever is mounted. In other words, the driving lever functions as a switching function.

As shown in FIG. 1, the conventional drive lever releasing device includes a drive body 1, a drive lever housing 2, a drive lever 5, a frame 6, and a hinge 7a.

A drive lever housing 2 is provided at one end of the drive body 1, a hole 3 is formed in the drive lever housing 2, and a drive lever 5 is installed in this hole. The spring 3 is inserted into the hole 3, and the driving lever 5 is supported by the compression spring 4 so that when the external force is applied to one end of the driving lever 5, the compression spring 4 is closed. While the driving lever 5 is also pushed and the external force is removed, the driving lever 5 is returned to its original position.

The lower end of the other end of the driving body 1 is provided with a frame 6 by a hinge 7a, which extends by a predetermined length in the longitudinal direction of the driving body 1 so that the end thereof is opposite to the opposite side. It is located slightly inside of one end of the installed drive lever 5.

The frame 6 is rotatable around the hinge 7a, and an inclined sliding surface 8 is formed at the upper end of the frame 6.

The operation of the configuration as described above is as follows. When a load is applied to the upper portion of the drive body 1, the drive body 1 is lowered with the hinge 7a as the axis.

When the driving body 1 is lowered by a predetermined amount, the driving lever 5 inserted and inserted into the hole 3 of the driving lever housing 2 slides downward while being in contact with the sliding surface 8 of the frame, thereby further lowering the frame 6. ) It comes into contact with the center of the end.

As another conventional embodiment, as shown in FIG. 2, the driving body 1, the driving lever housing 2, the compression spring 4, the driving lever 5, the frame 6, and the fixing lever 7b. It consists of.

A drive lever housing 2 is formed at one lower portion of the drive body 1, and a hole 3 is formed in the drive lever housing 20, and the compression spring 4 is inserted into the hole 3.

The driving lever 5 is installed outside the compression spring 4 so that the driving lever 5 is supported by the compression spring 4.

A sliding surface 8 is formed between the driving body 1 and the driving lever housing 2, and one end of the sliding surface 8 is provided with a frame 6. A fixing lever 7b is provided at the connection portion between the sliding surface 8 and the frame 6, and when the fixing lever 7b is rotated, the frame 6 can move a predetermined distance along the sliding surface 8. .

The frame 6 extends in the longitudinal direction of the driving body 1 to be in contact with one end of the driving lever 5.

The operation of the configuration as described above is as follows.

As shown in FIG. 3, when the driving lever 5 is in contact with one end of the frame, the fixing lever 7b is released and turned to move the frame 6 along the sliding surface 8.

When the frame 6 is moved by a predetermined distance, as shown in FIG. 4, the driving lever 5 pushes the compression spring 4 while entering the end of the frame 6 to release the driving lever 5. In the state, the fixing lever 7b is tightened to maintain the released state.

1 to 2 is a problem according to one embodiment of the prior art, when the linear movement of the drive lever along the sliding surface installed on the frame to release the drive lever to release the drive lever because the frame must be rotated To do this, a large force is required and the position between the hinge, the sliding surface and the driving lever must be accurate in order for the driving lever to be released at a certain position.

Another problem of the related art as shown in FIGS. 3 to 4 is that a large force is required to move the frame in the direction of action of the drive lever to release the drive lever, and the frame is fixed to maintain the released state after the drive lever is released. An additional device is needed.

The present invention has been made to solve the problems described above, to provide a drive lever releasing device that can be easily released by generating a linear motion by applying a rotational force around the hinge quickly with a small force.

A driving body to achieve the above object; A drive lever housing mounted at one lower end of the drive body; A driving lever which forms a hole in the drive lever housing, inserts the compression spring into the hole, and is supported by the compression spring outwardly; A frame installed at a lower portion of the other end of the driving body, the frame extending in a longitudinal direction of the driving body and having an end extended to an end of the driving lever; A lever hinge installed at a connecting portion of the driving body and the frame such that the driving lever is rotatable at the connecting portion with the frame; It is provided on one side of the frame provides a drive lever releasing device comprising a drive lever release means for releasing the drive lever to the hinge point as the axis.

The driving lever releasing device may further include a hinge support installed at an end of the frame; An actuating bar installed by a hinge at the end of the hinge support stand and capable of rotating the hinge back and forth with the shaft; It is installed between the end of the frame and the operating bar, the bottom of the drive lever housing includes a torsion spring for pressing the drive lever when pushing the operating bar, the impact generated when the operating bar pushes the drive lever between the operating bar and the hinge It provides a drive lever release device characterized in that further comprises a leaf spring to mitigate.

1 is a side cross-sectional view of a driving lever releasing device according to an embodiment of the present invention before operating the driving lever.

2 is a side cross-sectional view of a drive lever releasing device according to an exemplary embodiment after the drive lever is operated.

3 is a side cross-sectional view of a drive lever releasing device according to another embodiment of the present invention before the drive lever is operated;

Figure 4 is a drive lever releasing device according to another embodiment of the prior art, the side cross-sectional view after the drive lever operation.

Figure 5 is a drive lever release device according to the present invention, a side cross-sectional view before the drive lever operation.

Figure 6 is a drive lever release device according to the present invention, the side cross-sectional view after the drive lever operation.

<Description of the symbols for the main parts of the drawings>

12: drive body 14: drive lever housing

16: hole 18: compression spring

20: driving lever 22: frame

24: lever hinge 26: hinge support

28: hinge 30: operation bar

32: torsion spring 34: leaf spring

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Figure 5 is a drive lever releasing device according to the present invention, a cross-sectional view before the drive lever operation, Figure 6 is a drive lever release device according to the present invention, a cross-sectional view after the drive lever operation.

As shown in Figures 5 to 6, the drive lever release device of the present invention is largely driven body 12, drive lever housing 14, drive lever 20, lever hinge 24, hinge 28 It consists of.

A drive lever housing 14 to which the drive lever 20 is mounted is installed at one lower end of the drive body 12, and the drive lever housing 14 has a hole 16 corresponding to the longitudinal direction of the drive lever 20. Is formed. The compression spring 18 is inserted into the hole 16, and the driving lever 20 is installed outside the compression spring 18 so that the driving lever 20 is supported by the compression spring 18.

The frame 22 is mounted to the lower end of the other end of the driving body 12 by the lever hinge 24, and the frame 22 is rotatable with the lever hinge 24 as the axis.

The frame 22 extends in parallel in the longitudinal direction of the driving body 12 so that the end thereof is close to one end of the driving lever 20.

An operation bar 30 having an L shape is installed at the end of the frame 22, and the operation bar 30 functions to push the end of the driving lever 20 to release the driving lever 20.

The hinge 28 installed at one end of the frame 22 is connected to the center of the operation bar 30 so that the operation bar 30 can be rotated back and forth around the hinge 28. Since the hinge 28 installed at the end of the frame 22 is difficult to install directly due to the space constraints of the end of the frame 22, the hinge support 26 that can support the hinge 28 is first installed, and the hinge support ( 26) Install at the end.

Since the hinge point of the hinge support 26 is spaced a predetermined distance from the end of the frame 22, one end of the operation bar 30 is rotated when the L-shaped operation bar 30 rotates about the hinge 28 as the center axis. It provides a rotational space that can rotate naturally without interfering with the end of (22).

The torsion spring 32 and the plate ring 34 are assembled between the frame 22 and the hinge support 26. The torsion spring 32 presses the drive lever 20 while contacting the end of the drive lever 20 when the drive body 12 rotates the hinge 28 axially, and the leaf spring 34 operates. A shock generated when the bar 30 pushes the drive lever 20 is alleviated.

Referring to the operation of the present invention configured as described above are as follows.

Torque spring 32 is applied to the driving body 12 when the driving force of the rotational direction is applied around the hinge hinge 24 so that the driving lever housing 14 pushes the operation bar 30 on the bottom thereof. The compression is released while pushing the drive lever 20 in the axial direction of the drive lever 20.

The leaf spring 34 relieves the shock generated when the hinge 28 is pushed by the driving lever 20 between the driving lever 20 when the driving lever 20 is operated.

As described above, according to the present invention, by quickly applying a rotational force around the lever hinge with a small force to generate a linear motion to move the drive lever, it is possible to easily release the fixed part fixed by the drive lever, By adjusting the magnitude of the force of the torsion spring assembled on the bar and the compression spring installed on the driving lever, the linear movement distance of the driving lever can be kept constant even if the rotation angle of the operating bar is over a certain angle.

Claims (3)

A driving body; A drive lever housing mounted at one lower end of the drive body; A driving lever which forms a hole in the drive lever housing, inserts the compression spring into the hole, and is supported by the compression spring outwardly; A frame installed at a lower portion of the other end of the driving body, the frame extending in a longitudinal direction of the driving body and having an end extended to an end of the driving lever; A lever hinge installed at a connecting portion of the driving body and the frame such that the driving lever is rotatable at the connecting portion with the frame; And a driving lever releasing means installed at one side of the frame to release the driving lever with a hinge point as an axis. The method of claim 1, The drive lever release device and the hinge support is installed on the end of the frame; An actuating bar installed by a hinge at the end of the hinge support stand and capable of rotating the hinge back and forth with the shaft; And a torsion spring installed between the end of the frame and the operation bar to press the driving lever when the bottom surface of the drive lever housing pushes the operation bar. The method of claim 2, And a leaf spring provided between the actuating bar and the hinge to mitigate an impact generated when the actuating bar pushes the drive lever.