JP6516633B2 - Clamp type locking device - Google Patents

Description

  The present invention relates to a clamp type locking device.

  A clamp-type lock device is used to lock a door attached to an electrical device storage box or the like. The clamp type locking device is pivoted by a body attached to the door, a handle whose head is pivotally supported by the body, and an operation of raising and lowering the handle, and the door is chained by clamping the upper and lower two points of the housing And a link mechanism section having upper and lower clamp sections opposite to each other to be locked (Patent Document 1).

  Further, the link mechanism portion is provided at a position adjacent to the head of the handle, and both the link mechanism portion and the head of the handle are collectively inserted into the opening formed in the main body, The parts are supported on the main body. In order to waterproof the link mechanism and the head of the handle, a bag-like packing is provided at the opening. However, such a bag-like packing has a complicated structure, and depending on the shape of the packing to be attached to the opening, the packing may operate due to the problem of obstructing the opening and closing operation of the handle or the opening and closing operation of the handle. There was a problem that the packing itself was worn out.

Patent No. 4349609

  The object of the present invention is to solve the above-mentioned conventional problems and to provide a clamp type locking device capable of simplifying the shape of the packing provided in the opening.

  The present invention made to solve the above problems comprises a main body, a handle whose head is pivotally supported by the main body, and a link mechanism having a clamp portion which is pivoted by the operation of the handle. In the clamp type locking device, an opening through which the link mechanism is inserted is formed in the main body separately from a cylinder through which the head of the handle is inserted, and a frame shape is formed around the opening. It is characterized in that a packing formed in the above is provided.

  The invention according to claim 2 is characterized in that, in the clamp type locking device according to claim 1, the cylindrical portion has a waterproof structure.

  The invention according to claim 3 is characterized in that in the clamp type locking device according to claim 1 or 2, grooves are formed in the left and right edges of the opening, and the packing is fitted in the grooves. It is.

  The invention according to claim 4 is characterized in that, in the clamp type locking device according to any one of claims 1 to 3, the side of the packing facing the handle is concave.

  The clamp-type lock device according to the present invention further comprises an opening at the periphery of the opening, separate from the opening at which the link mechanism is inserted and the cylindrical portion at which the head of the handle is inserted. A packing formed in the shape of a circle is provided. As a result, the packing provided on the periphery of the opening can be made small and simple in shape.

  According to the second aspect of the present invention, the head portion of the handle can be waterproofed as the tubular portion is waterproofed separately from the opening.

  In the invention according to claim 3, the groove is formed in the left and right edges of the opening, and the packing is fitted in the groove. Thus, the groove can be used as a drainage path, and the packing can be formed thick, so that the strength of the packing itself can be enhanced.

  The invention according to claim 4 is such that the side of the packing facing the handle is concave. As a result, since the packing abuts on the handle at two points, it is possible to waterproof in a double manner, and it is possible to prevent deterioration of a portion located inside of the two points and extend the life of the packing. It becomes a thing.

It is a whole perspective view of the box for electric equipment storage. It is sectional drawing and a perspective view which show the principal part (clamp-type lock apparatus) of FIG. It is a front view and perspective view of a clamp type locking device. It is a side view of a clamp type locking device. It is an exploded view of a clamp type locking device. It is a vertical sectional view of a clamp type locking device. It is the perspective view which abbreviate | omitted the main body of FIG. It is sectional drawing which shows the link mechanism of a clamp type locking device. It is sectional drawing which shows the link mechanism of a clamp type locking device. It is sectional drawing which shows the link mechanism of a clamp type locking device. It is sectional drawing which shows the link mechanism of a clamp type locking device. (A) It is a perspective view which shows the detail of a link mechanism. (B) It is a perspective view which shows the detail of the link mechanism from a different angle. (C) It is the perspective view which abbreviate | omitted the lower clamp part.

Hereinafter, preferred embodiments of the present invention will be described.
As shown in FIG. 1, the door 2 attached to the electrical device storage box 1 is provided with a clamp type locking device 3 for locking the door 2. The clamp type locking device 3 includes a main body 4 attached to the door 2, a handle 5 whose head is pivotally supported by the main body 4, and a link mechanism 6 as shown in FIGS. 2 and 3. The link mechanism section 6 has an upper clamp section 7 and a lower clamp section 8 provided in opposite directions, which are turned by the ups and downs of the handle 5, and the upper clamp section 7 and the lower clamp section 8 It is rotated by link members 31, 32, 33 described later. As shown in FIG. 4, the lower clamp portion 8 has a hook shape, and the door 2 can be locked by clamping a metal fitting (not shown) on the electrical device storage box 1 side. In the present embodiment, as shown in FIG. 1, the metal rod 1 is formed on the electrical device storage box 1 by connecting the rod rod 9 to the tip of the upper clamp 7 and the lower clamp 8 respectively. It can be engaged and the upper and lower two points of the door 2 can be locked.

  As shown in FIG. 5, in the main body 4, the opening 10 and the cylindrical portion 11 are separately formed. Here, the opening 10 is for inserting only the link mechanism 6 described above, and the cylinder 11 is for inserting only the head of the handle 5. The head of the handle 5 is pivotally supported by the first shaft 21 inside the cylindrical portion 11 by the first shaft 21. Then, a frame-like packing 12 is provided on the periphery of the opening 10. With such a configuration, the packing 12 provided on the periphery of the opening 10 can be made small and have a simple shape, so that it is not necessary to provide a bag-like packing having a complicated configuration as in the prior art. Since the packing 12 does not operate due to the obstruction of the opening and closing operation of 5 and the opening and closing operation of the handle 5, the packing 12 does not wear. In addition, although the packing 12 of this embodiment set it as a frame-like thing, one packing may be connected and it may be formed in a frame shape.

  As shown in FIG. 5, the first shaft 21 mounted in the cylindrical portion 11 is provided with waterproof performance on the assumption that the O-ring 13 is provided. As described above, the head of the handle 5 can be made waterproof, as a waterproof structure is provided separately from the opening 10. Further, by making the waterproofing of the opening 10 and the waterproofing of the cylindrical portion 11 independent as described above, the effect of making each waterproof structure simple is achieved.

  The packing pieces 12 are fixed to the upper and lower end portions of the packing 12 so as to sandwich the edge of the opening 10 as the holding pieces 14 are formed respectively. This makes it possible to prevent the packing 12 from falling off.

  As shown in FIG. 6, grooves 15 are formed at the left and right edges of the opening 10, and the packing 12 is fitted in the grooves 15. Thus, the groove 15 can be used as a drainage path, and the packing 12 can be formed thick, so that the strength of the packing 12 itself can be increased.

  Further, on the side of the packing 12 facing the handle 5, a concave portion 16 having a substantially concave shape in vertical cross section is formed. As a result, the packing 12 abuts on the back surface of the handle 5 at two points, which makes it possible to waterproof in a double manner, and a part of the two points located inside is not exposed to the outside, thereby preventing deterioration. Thus, the life of the packing 12 can be extended.

  In addition, in order to enhance the waterproof function when attaching the main body 4 to the door 2, the packing 17 shown in FIG. 5 is provided between the main body 4 and the door 2.

  Further, as shown in FIG. 4, a cylinder lock 19 provided with a key plate 18 is provided at the opposite end to the head of the handle 5 so that the handle 5 can be locked in a closed state. Then, as shown in FIG. 5, the main body 4 is formed with a cylinder storage portion 20 in which the cylinder lock 19 described above is stored.

The detailed structure of the link mechanism 6 will be described below.
As shown in FIGS. 7 and 8, the handle 5 is pivotally connected to the first link 31 by the second shaft 22, and the first link 31 is pivotally connected to the lower clamp portion 8 by the third shaft 23. ing. Further, the lower clamp portion 8 is pivotally supported on the main body 4 by a fifth shaft 25. In summary, the first shaft 21 and the fifth shaft 25 are fixed points with respect to the main body 4, and by closing the handle 5, the second shaft 22 and the third shaft 23 are from the state of FIG. By performing an arc movement on such a locus, the first link 31 and the lower clamp portion 8 are turned to be in the state of FIG. As described above, the lower clamp portion 8 is operated to be rotated by the link mechanism of the four points of the first shaft 21, the second shaft 22, the third shaft 23, and the fifth shaft 25. In this link mechanism, when the straight line connecting the first axis 21 and the third axis 23 is the neutral line and the second axis 22 moves in the closing direction beyond the neutral line, the handle 5 is returned even if a return force is applied. It constitutes a toggle mechanism that can not be moved.

  Next, the upper clamp unit 7 will be described. The upper clamp portion 7 is pivotally supported by the seventh shaft 27 and is pivotally connected to the tip (upper end) of the second link 32 by the sixth shaft 26. Further, a third link 33 disposed so as to overlap the first link 31 and the second link 32 in the width direction by the fourth shaft 24 is pivotally attached to the base end of the second link 32. The third link 33 is pivotally mounted by the third shaft 23 and the fifth shaft 25 pivotally supporting the lower clamp portion 8, and is provided to interlock with the lower clamp portion 8, and by the third shaft 23. By being pivotally attached to the first link 31, it operates in conjunction with the first link 31. A fourth link 34 is pivotally attached to the seventh shaft 27.

  In summary, when the first link 31 is driven, the fourth link 24 and the sixth shaft 26 move in an arc along the locus shown in FIG. 9 and FIG. 10 from the state of FIG. The second link 32 and the upper clamp portion 7 are turned to be in the state of FIG. By transmitting the rotational force of the lower clamp portion 8 to the second link 32 through the third link 33 by such a link mechanism, the upper clamp portion 7 is interlocked and rotated. As shown in FIG. 8, a long hole 28 is formed in the second link 32 to allow the movement of the second shaft 22 to escape.

DESCRIPTION OF SYMBOLS 1 electrical device storage box 1 a metal fitting 2 door 3 clamp type locking device 4 main body 5 handle 6 link mechanism 7 upper clamp 8 lower clamp 9 rod 10 opening 11 cylinder 11 packing 12 O ring 13 stopper 14 Reference Signs List 15 groove portion 16 recessed portion 17 packing 18 key plate 19 cylinder lock 20 cylinder lock portion 21 first shaft 22 second shaft 23 third shaft 24 fourth shaft 25 fifth shaft 26 sixth shaft 27 seventh shaft 28 elongated hole 31 first Link 32 Second link 33 Third link 34 Fourth link

Claims (4)

Body and
A handle whose head is pivotally supported by this body,
And a link mechanism having a clamp which is pivoted by the operation of raising and lowering the handle.
In the main body, an opening through which the link mechanism is inserted is formed separately from a cylindrical part through which the head of the handle is inserted;
A clamp-type lock device characterized in that a packing formed in a frame shape is provided around the opening.   The clamp type locking device according to claim 1, wherein the cylinder portion has a waterproof structure.   The clamp type locking device according to claim 1 or 2, wherein a groove is formed in the left and right edges of the opening, and the packing is fitted in the groove.   The clamp type locking device according to any one of claims 1 to 3, wherein a side of the packing facing the handle is concave.