JP2017043977A - Clamp type locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp type locking device which can confirm a closed state of a handle with a simple structure.SOLUTION: A clamp type locking device includes a body 4, a handle 5 having a head journaled to the body 4, and an upper clamp 7 and a lower clamp 8 turned by rising/falling operation of the handle 5. The body 4 includes a spring mechanism 17 which is abutted to a fitting part 18 formed on the handle 5 so as to provide joint sensitivity when the handle 5 is closed.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a clamp-type locking device.

  In order to lock a door attached to an electric equipment storage box or the like, a clamp-type locking device is used. The clamp-type locking device has a main body attached to the door, a handle on which the head is pivotally supported by the main body, and is rotated by raising and lowering the handle to clamp the door at the upper and lower points. There are provided upper and lower clamp portions that are opposite to each other for locking (Patent Document 1).

  Then, by closing the handle so as to be housed in the main body, the clamp portion is operated to perform locking. Here, a packing is provided between the handle and the main body in order to improve the waterproof performance of the handle in the closed state. However, the handle slightly lifts due to the repulsive force of the packing, and there is a problem that it is difficult to confirm the closure of the handle.

  In order to solve this problem, a structure is disclosed in which an end of the handle is locked by a latch or the like to close the handle, and when the handle is pulled up, the latch is operated (for example, Patent Document 2). ). However, there is a problem in that the number of parts is increased by the amount of the latch and the cost is increased.

Japanese Patent No. 4349609 JP 2014-163096 A

  An object of the present invention is to solve the above-described conventional problems and to provide a clamp-type locking device capable of confirming the closing of the handle with a simple structure.

  The present invention made in order to solve the above-mentioned problems is a clamp-type locking device comprising a main body, a handle on which the head is pivotally supported by the main body, and a clamp portion that is rotated by a raising / lowering operation of the handle. In the above, the main body is provided with a spring mechanism portion that makes contact with a locking portion formed on the handle to provide a sense of moderation when the handle is in a closed state.

  According to a second aspect of the present invention, in the clamp-type locking device according to the first aspect, the locking portion or the spring mechanism portion has a substantially rectangular shape in a vertical section.

  The invention according to claim 3 is the clamp type locking device according to claim 1 or 2, wherein the handle is provided with a locking portion for locking the handle to the main body, and at a position facing the locking portion, The locking portion and the spring mechanism portion are provided.

  According to a fourth aspect of the present invention, in the clamp type locking device according to any one of the first to third aspects, the locking portion is a key plate of a cylinder lock provided on a handle. is there.

  According to a fifth aspect of the present invention, in the clamp type locking device according to the first or second aspect, the spring mechanism portion is a toggle spring that holds the handle in an open state or a closed state. .

  In the clamp type locking device according to the present invention, when the handle is in a closed state, the main body is provided with a spring mechanism portion that comes into contact with a locking portion formed on the handle to give a sense of moderation. As a result, the simple structure in which the locking part comes into contact with the spring mechanism allows the user to feel moderation when the handle is closed, and grasps and confirms that this handle has been closed. Will be able to.

  As in the second aspect of the invention, the locking portion or the spring mechanism portion has a substantially rectangular shape in vertical cross section, so that the locking / unlocking guide by the locking portion or the spring mechanism portion is easy. It will be something.

  As in the invention according to claim 3, the size of the main body in the width direction can be reduced by providing the locking portion and the spring mechanism portion at a position facing the locking portion.

  As in the invention according to claim 4, by using the key portion of the cylinder lock provided with the locking portion on the handle, it is not necessary to separately provide a new member as the locking portion.

It is a whole perspective view of the electric equipment storage box. It is sectional drawing and a perspective view which show the principal part (clamp type locking device) of FIG. It is the front view and perspective view of a clamp type locking device. It is a side view 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. It is sectional drawing which shows the link mechanism of a clamp type locking device. It is sectional drawing which shows the locked state of a handle. It is an exploded view of a clamp type locking device. It is the perspective view which abbreviate | omitted the main body of FIG. (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. FIG. 6 is a cross-sectional perspective view showing a second embodiment. 6 is a cross-sectional view showing a second embodiment.

Preferred embodiments of the present invention are shown below.
(Embodiment 1)
As shown in FIG. 1, the door 2 attached to the electrical equipment storage box 1 is provided with a clamp-type locking device 3 for locking the door 2. As shown in FIGS. 2 and 3, 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 portion 6. The link mechanism portion 6 has an upper clamp portion 7 and a lower clamp portion 8 that are provided in opposite directions and rotated by an up and down operation of the handle 5, and the upper clamp portion 7 and the lower clamp portion 8 are It is rotated by link members 31, 32, and 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 electric device storage box 1 side. In this embodiment, as shown in FIG. 1, rod rods 9 are connected to the tips of the upper clamp portion 7 and the lower clamp portion 8, respectively, and the rod rod 9 is attached to the metal fitting 1 a formed in the electric device storage box 1. The upper and lower two points of the door 2 can be locked by being engaged.

  As shown in FIG. 4, a cylinder lock 10 is provided at the end of the handle 5 opposite to the head, and the cylinder lock 10 locks the handle 5 to the main body 4 after the handle 5 is closed. It incorporates a key plate 11 that is a locking part. Specifically, the handle 5 is opened in the state shown in FIG. 5 and then the handle 5 shown in FIG. 8 is closed via the states shown in FIGS. 6 and 7. Here, a key (not shown) is inserted into the key hole 12 of the cylinder lock 10. By inserting and rotating, the key plate 11 is guided and slid in the left direction in the figure, and enters the key plate storage portion 13 of the main body 4. As a result, the handle 5 is locked to the main body 4 as shown in FIG.

  As shown in FIG. 10, the main body 4 is formed with a cylinder storage portion 14 in which the cylinder lock 10 provided on the handle 5 is stored. Further, the main body 4 is formed with an opening 15 through which the link mechanism 6 is inserted and a cylinder 16 through which the head of the handle 5 is inserted. The head of the handle 5 is pivotally supported on the main body 4 by the first shaft 21 inside the cylindrical portion 16. In addition, 41 is a packing for waterproofing the opening 15, 42 is an O-ring for waterproofing the head of the handle 5, and 43 is a packing for waterproofing between the main body 4 and the door 2.

  As shown in FIGS. 2 and 5, a spring mechanism 17 made of stainless steel having a substantially vertical cross section is provided inside the cylinder storage portion 14, and this spring mechanism 17 is connected to the main body 4 by a screw 17a. It is fixed to. Further, a locking portion 18 is provided on the side surface of the cylinder lock 10 of the handle 5, and when the handle 5 is closed, the locking portion 18 comes into contact with the spring mechanism portion 17 to give a sense of moderation. . Here, in the state shown in FIG. 5, that is, in the state where the handle 5 is not locked, the locking portion 18 also serves as a key plate 11 that protrudes from the side surface of the cylinder lock 10 in the lower right direction in the figure. There is no need to provide it.

  With the above configuration, the simple structure in which the locking portion 18 comes into contact with the spring mechanism portion 17 allows the user to feel moderation when the handle 5 is closed, and thus the handle 5 is certainly in the closed state. It is assumed that this can be understood and confirmed.

  The locking portion 18 is not limited to the key plate 11, and other protrusions or the like may be formed integrally or detachably with the handle 5 so as to abut against the spring mechanism portion 17. In addition, as in the present embodiment, it is more preferable to dispose the spring mechanism portion 17 at a position facing the locking portion (key plate 11) that locks the handle 5 to the main body 4. As described above, the key plate 11 is slid to lock the handle 5 to the main body 4 or to come into contact with the spring mechanism 17 to give a sense of moderation. The size of the direction can be reduced. In addition, since the locking portion 18 moves along an arcuate locus along the rotation locus of the handle 5, the engagement portion 18 is formed by forming the spring mechanism portion 17 along the rotation locus of the handle 5. The locking / unlocking is easy to guide.

  Further, in the present embodiment, the spring mechanism portion 17 is formed in a substantially rectangular shape in vertical cross section, so that the locking portion 18 moves along the surface of the spring mechanism portion and is easily locked / unlocked. However, on the contrary, the locking portion 18 may be formed in a substantially square shape in the vertical section.

  As shown in FIG. 5, an escape portion 19 is formed at a location on the cylinder housing portion 14 that is the proximal end side of the spring mechanism portion 17. Thereby, the spring mechanism part 17 can be formed longer and durability can be improved. Further, when the locking portion 18 is detached from the spring mechanism portion 17, the holding force is higher than that at the time of insertion because the engaging portion 18 is engaged with the substantially square base end side, and the raising of the handle 5 is effective. Can be prevented. Further, by making the spring mechanism portion 17 made of stainless steel, even when the electrical equipment storage box 1 is installed outdoors, rust and the like are hardly generated, and it is possible to suppress a decrease in holding force due to deterioration.

The detailed structure of the link mechanism unit 6 will be described below.
As shown in FIGS. 5 and 11, the handle 5 is pivotally attached to the first link 31 by the second shaft 22, and the first link 31 is pivotally attached 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 fixing points with respect to the main body 4, and by closing the handle 5, the second shaft 22 and the third shaft 23 are moved from the state of FIG. By making an arc motion along such a trajectory, the first link 31 and the lower clamp portion 8 are rotated, and the state shown in FIG. 8 is obtained. As described above, the lower clamp portion 8 is operated to rotate by the link mechanism including 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 shaft 21 and the third shaft 23 becomes a neutral line, and the second shaft 22 moves in the closing direction beyond the neutral line, the handle 5 can be moved even if a returning force is applied. It constitutes a toggle mechanism that cannot be moved.

  Next, the upper clamp part 7 will be described. The upper clamp portion 7 is pivotally supported by the seventh shaft 27, and is pivotally connected to the tip end (upper end) of the second link 32 by the sixth shaft 26. A third link 33 is pivotally attached to the base end of the second link 32 by a fourth shaft 24 so as to overlap the first link 31 and the second link 32 in the width direction. The third link 33 is pivotally attached to the third shaft 23 and a fifth shaft 25 that pivotally supports the lower clamp portion 8, and is provided so as to be interlocked with the lower clamp portion 8. 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 shaft 24 and the sixth shaft 26 make a circular motion along the locus shown in FIGS. 6 and 7 from the state of FIG. The second link 32 and the upper clamp part 7 are rotated to be in the state shown in FIG. By transmitting the rotational force of the lower clamp part 8 to the second link 32 via the third link 33 by such a link mechanism, the upper clamp part 7 is rotated in conjunction with it. As shown in FIG. 5, the second link 32 is formed with a long hole 28 to release the movement of the second shaft 22.

(Embodiment 2)
A second embodiment is shown in FIGS. In this embodiment, the spring mechanism 17 is configured by a toggle spring 51 that holds the handle 5 in an open state or a closed state. The toggle spring 51 is provided on the fifth shaft 25 attached to the main body 4, that is, constitutes a part of the main body 4. In addition, the toggle spring 51 is in contact with a latch fitting 51 having a substantially vertical cross section attached to the back surface of the handle 5 via a screw 52 a as the latch portion 18. The toggle spring 51 can be elastically deformed by disposing it with a gap between it and the fifth shaft 25, and when the handle 5 is closed, the locking metal fitting 51 is pushed over the toggle spring 51 to get over, It is assumed that the user can get a sense of moderation. As a result, as in the first embodiment, it can be grasped and confirmed that the handle 5 is surely closed.

DESCRIPTION OF SYMBOLS 1 Electrical equipment storage box 1a Metal fittings 2 Door 3 Clamp type locking device 4 Main body 5 Handle 6 Link mechanism part 7 Upper clamp part 8 Lower clamp part 9 Rod bar 10 Cylinder lock 11 Key plate 12 Key hole part 13 Key plate storage part 14 Cylinder storage portion 15 Opening portion 16 Tube portion 17 Spring mechanism portion 17a Screw 18 Locking portion 19 Escape portion 21 First shaft 22 Second shaft 23 Third shaft 24 Fourth shaft 25 Fifth shaft 26 Sixth shaft 27 Seventh shaft 28 Long hole 31 1st link 32 2nd link 33 3rd link 34 4th link 41 Packing 42 O-ring 43 Packing 51 Toggle spring 52 Locking fitting 52a Screw

Claims (5)

The body,
A handle on which the head is pivoted on the main body,
In the clamp type locking device provided with a clamp portion that is rotated by the raising and lowering operation of the handle,
When the handle is closed,
A clamp-type locking device characterized in that a spring mechanism portion that makes contact with a locking portion formed on the handle to give a sense of moderation is provided on the main body.   The clamp type locking device according to claim 1, wherein the locking portion or the spring mechanism portion has a substantially rectangular shape in vertical section. The handle is provided with a locking part for locking the handle to the main body,
The clamp type locking device according to claim 1 or 2, wherein the locking portion and the spring mechanism portion are provided at a position facing the locking portion.   The clamp type locking device according to any one of claims 1 to 3, wherein the locking portion is a key plate of a cylinder lock provided on a handle.   The clamp type locking device according to claim 1 or 2, wherein the spring mechanism portion is a toggle spring that holds the handle in an open state or a closed state.