JP3158427U - Locking mechanism for door opening / closing handle - Google Patents

Abstract

An opening / closing door locking mechanism capable of reliably locking a door opening / closing handle with a small number of parts and a simple mounting process. A first locking piece having a base fixed to a door, a shaft portion protruding from the base, and a lever, and provided in a non-rotatable manner on the door side, and a lever. And a second locking piece 50 that rotates integrally therewith. The first locking piece 40 is fixed by being sandwiched between the base 10 and the door. The second locking piece 50 is fixed to the back side of the lever 20. In a state where the second mating portion approaches the first mating portion by the rotation of the lever 30, the both mating portions are fixed by the locking means 60. [Selection] Figure 1

Description

  The present invention relates to a locking mechanism for a door opening / closing handle.

Conventionally, door opening / closing handles for attaching to various doors such as switchboard storage boxes have been widely used. Among these, a so-called L-shaped handle having a shape in which a rod-shaped body protrudes in an L shape from the surface of the door is well known.
This L-shaped handle is a base that is fixed to the door, a shaft that protrudes from the base, and a rod-like body that is connected to the shaft or is formed integrally with the shaft, and is rotatable with respect to the base. And a lever attached to the. Then, by turning the handle, the hook piece connected to the shaft portion is moved, thereby opening the door.
The door to which the door opening / closing handle is attached is opened due to mischief or the like, and the inside of the door, such as a device in the switchboard storage box, may be tampered with. Moreover, although not intentionally, the same thing as the above occurred due to misunderstandings and the like, and in the case of a switchboard or the like, a serious influence may be exerted on the surroundings.
For this reason, the thing shown in patent document 1 is proposed as a safer locking mechanism of the door opening / closing handle with a low possibility of receiving mischief and the like.

This patent document 1 has a base fixed to a door, a shaft portion protruding from the base, and a rod-shaped lever that is connected to or integrally formed with the shaft portion and is rotatable with respect to the base. The door opening / closing handle locking mechanism includes a fixed member fixed to the door side, a pair of left and right movable members that interfere with the lever, and a connecting means. The connecting means is configured to rotate the lever. The left and right movable members are pivotally attached to the fixed member so that they can move between two positions, a mounting position located in the area and a non-mounting position located outside the rotation area. The left movable member has a lateral surface that is positioned on the left side of the lever, and both the right movable members have a lateral surface that is positioned on the right side of the lever. The left and right lateral sides of the lever are positioned on the left and right sides of the lever, making it impossible And means for locking and fixing the two movable members to each other I, by locking securing the two movable members to each other, wherein the lever is unable to rotate.
Such a mechanism of Patent Document 1 can prevent the lever from being tampered with by opening the door opening / closing handle because the lever can be made non-rotatable by mounting the movable member on the lever. It was possible to be high safety.
On the other hand, although it is the door locking mechanism of the door opening and closing handle of Patent Document 1 which is excellent as described above, the inventor of the present application repeatedly examined whether there is room for further improvement.

Examining it, it was necessary to take the trouble of rotating the movable member separately from the door opening / closing lever in order to hang the padlock on the movable member to which the padlock was to be attached.
In particular, as shown in FIG. 2 of Patent Document 1, two movable members (lateral side surfaces) that are rotatably connected to a fixed member (door side) via a connection portion are separately rotated, As shown in FIG. 1 of the document, it is necessary to take time and effort to lock the padlock by aligning the position of the through hole through which the padlock vine passes. In addition, as shown in FIG. 4 of the same document, even if both the movable members rotate together, it is necessary to rotate the movable member separately from the door opening / closing lever in order to lock the padlock. There is no change. In addition, in the case shown in FIG. 4, it has been necessary to take time and effort to pass a hook piece provided with a through hole through which the crane is separately passed through both the through holes as shown in FIG.
In addition, as described above, a movable member that rotates separately from the opening / closing lever, or two movable members that rotate separately, or a hook piece is prepared during the manufacturing process It also required a lot of points, which was a factor in increasing costs.

Japanese Patent No. 4087159

  The present invention is designed to reduce the time required for locking by a locking means such as a padlock when using the door opening / closing handle locking mechanism, reduce the number of parts, and can be locked with easy attachment. An object of the present invention is to provide a locking mechanism for the door opening / closing handle.

The invention according to claim 1 of the present application is a base that is fixed to the door, a shaft that protrudes from the base to the front side and the back, and the shaft that protrudes from the front side. In a locking mechanism for a door opening / closing handle having a movable rod-like lever, a first locking piece that is non-rotatably provided on the door side, and a second locking piece that rotates together with the lever, A locking means for fixing the locking pieces to each other to prevent the lever from rotating relative to the base, and the first locking piece is sandwiched between the base and the door and fixed And a first mating portion extending from the fixing portion toward the lever. The second locking piece includes a base-end-side fixing portion fixed to the lever and a second locking portion extending from the fixing portion toward the base side. A second mating portion is formed by rotating the lever. In approaching state, the first and second mating portions to provide a locking mechanism of the door opening and closing handle, characterized in that as fixed by the locking means.
In the invention according to claim 2 of the present application, the base is provided with a positioning projection on the back side thereof, the door is provided with a shaft mounting hole and a positioning portion, and the shaft portion is passed through the shaft mounting hole. In addition, the positioning portion receives the positioning protrusion of the base and attaches the base to the door, and the fixing portion of the first locking piece passes through the shaft portion protruding from the base to the back side. A shaft insertion portion that can pass through and a projection insertion portion that allows the positioning protrusion to pass through, and when the base is attached to the door, the fixing portion of the first locking piece is disposed between the base and the door, The door opening / closing handle locking mechanism according to claim 1, wherein the shaft portion is passed through the shaft insertion portion and the positioning protrusion is passed through the protrusion insertion portion.
In the invention according to claim 3 of the present application, the first mating portion and the second mating portion extend in parallel with the axial direction of the shaft portion, and the fixing portion of the second locking piece is a screw insertion portion. The second locking piece is fixed to the rear surface of the lever through the screw insertion portion, and the second mating portion is bent near the end of the lever at the fixing portion of the second locking piece. 3. The door opening / closing handle locking mechanism according to claim 2, wherein the second mating portion is positioned closer to the distal end side of the lever than the screw insertion portion. To do.
The invention according to claim 4 of the present application is parallel to the axial direction of the shaft portion from at least one of the fixing portion of the first locking piece and the fixing portion of the second locking piece. An extending horizontal portion and a retracting portion extending from the end of the horizontal portion to the base end side of the lever are provided, and at least one of the first aligning portion and the second aligning portion is provided at the end of the retracting portion. 4. A door opening / closing handle locking mechanism according to claim 3, wherein the door opening / closing handle locking mechanism is provided.

The present invention includes a first locking piece that is non-rotatably provided on the door side, and a second locking piece that rotates integrally with the lever. The first and second mating portions are fixed to each other by the locking means in a state where the two mating portions are close to the first mating portion, and the first locking piece is used for fixing by the locking means, that is, for locking. The second locking piece that does not require a pivoting operation and needs to be aligned with the first locking piece for the locking is integrated with the lever by turning the door opening / closing lever. It is not necessary to perform the positioning by rotating separately from the lever. Moreover, the structure for the said lock | rock can be implement | achieved only by the 1st and 2nd locking piece, and effective locking is attained with the minimum number of parts.
Furthermore, since the first locking piece includes a base end side fixing portion sandwiched and fixed between the base and the door and a first mating portion extending from the fixing portion to the lever side, the handle is used as a base. Installation can be achieved with only the normal construction process to fix. More specifically, when the base is attached to the door by the means according to claim 2, the fixing portion of the first locking piece is disposed between the base and the door, and the shaft insertion portion is provided with the shaft. The mounting is completed simply by passing the positioning protrusion through the protrusion insertion portion and the positioning insertion protrusion.
In the device according to claim 3, since the fixing portion of the second locking piece includes the screw insertion portion, it can be fixed to the lever with only the screw. Moreover, the first mating portion and the second mating portion extend in parallel with the axial direction of the shaft portion, and the second mating portion is closer to the tip of the lever in the fixing portion of the second locking piece. In the locked state, the screw is hidden behind the second mating portion because the second mating portion is positioned closer to the distal end side of the lever than the screw insertion portion. It is difficult to see from the outside, and it becomes difficult to remove the screw by mischief, which is highly safe.
In the device according to claim 4, the horizontal extending in parallel with the axial direction of the shaft portion from at least one of the fixing portion of the first locking piece and the fixing portion of the second locking piece. And a receding portion extending from the end of the horizontal portion to the base end side of the lever, and at least one of the first mating portion and the second mating portion is provided at the end of the receding portion. Therefore, the positions of the first and second mating portions are located on the base end side (the side closer to the shaft portion) of the lever, and the first and second mating portions are misaligned. And destructive work becomes difficult.

It is a perspective view of the locking mechanism which concerns on embodiment of this invention, (A) is a perspective view from the front side, (B) is a perspective view from the back side. The perspective view of the 1st, 2nd locking piece which concerns on the locking mechanism. The side view of the locking mechanism. Sectional drawing of the principal part of the locking mechanism.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The opening / closing handle locking mechanism includes a base 10, a shaft portion 20, a lever 30, a first locking piece 40, a second locking piece 50, and a locking means 60.
Hereinafter, the configuration of each part will be described in detail.

As shown in FIGS. 1 and 2, the base 1 is fixed to the door 70.
As shown in FIG. 3, the base 10 includes a cylindrical portion 11 into which the shaft portion 20 can be rotatably inserted, and a hook-shaped portion 12 provided on the outer peripheral surface of the cylindrical portion 11. .
The cylindrical portion 11 is provided so as to penetrate the door 70, and the back surface of the bowl-shaped portion 12 is fixed to the surface of the door 70.
The hook-shaped part 12 is provided with a positioning protrusion 13 as well as the shaft part 20 protruding from the back side.
The door 70 is provided with a shaft mounting hole 71 and a positioning portion 72. The shaft portion 20 is passed through the shaft mounting hole 71, and the positioning projection 72 of the base is received by the positioning portion 72. The base 21 is attached to the door 70 by tightening the nut 21.

  The shaft portion 20 is provided on the base 10 in a state of penetrating the base 10. The shaft portion 20 is integrally provided with a lever 30 at the tip, and is rotatably inserted into the cylindrical portion 11 of the base 10.

  The lever 30 is a rod-like body that extends in a direction substantially orthogonal to the axial direction of the shaft portion 20 (downward in this example), and can rotate integrally with the shaft portion 20 with respect to the base 10 around the shaft portion 20. it can. However, the lever 30 is not limited to a rod-shaped one as long as it functions as a handle. A screw hole 31 is formed on the rear surface (portion facing the door side) of the lever 30, but the screw hole 31 may be pre-processed when the lever 30 is molded, and an existing lever When this locking mechanism is retrofitted to 30, it may be processed at the time of installation.

  It is preferable that the locking means 60 employs a pre-locking lock that closes and locks the lock by inserting the free end of the vine into the lock body after inserting a vine having a free end such as a padlock into the locked object. Various locks such as chain locks and dial locks can be used.

  The first locking piece 40 can be made of an L-shaped metal or a hard resin plate, and is sandwiched between the base 10 and the door 70 and fixed by tightening the nut 21. The first locking piece 40 includes a base end side fixing portion 41 that is sandwiched and fixed between the base 10 and the door 70, and a first mating portion 42 that is bent from the fixing portion 41 and extends to the lever side. With. The fixed portion 41 includes a shaft insertion portion 43 and a protrusion insertion portion 44. At the time of attachment, the shaft portion 20 is passed through the shaft insertion portion 43 and the positioning projection 13 is passed through the protrusion insertion portion 44. The shaft insertion portion 43 and the protrusion insertion portion 44 are implemented as through holes, but can be implemented by changing to notches or the like. The first mating portion 42 is provided with a locking hole 45 through which a crane of the locking means 60 is passed.

The second locking piece 50 can be a metal or hard resin plate, and is fixed to the lever 30 with a screw 32. The second locking piece 50 includes a fixed portion 51, a horizontal portion 52 extending in the axial direction of the shaft portion 20 from the lower end portion thereof, and a retracting portion extending from the end portion to the base end side of the lever (upward in this example). 53 and a second mating portion 54 extending horizontally from the end thereof, and a locking hole 55 through which the crane of the locking means 60 is passed is provided in the second mating portion 54.
The fixing portion 51 includes a screw insertion portion 56, and the screw 32 is passed through the screw insertion portion 56 to be fixed to the screw hole 31 on the back surface of the lever 30. In addition, it can also implement as an L shape without providing a horizontal part and a retraction part, and a horizontal part and a retraction part may be provided in the 1st locking piece 40 side, and it provides in both 1st and 2nd. May be.

Next, the use state of the locking mechanism of the door that is assembled as described above will be described.
With the door 70 closed, the locking hole 45 of the first mating portion 42 and the locking hole 55 of the second mating portion 54 are matched, and a lock of the locking means 60 is passed through both of the locking holes. Therefore, the lever 30 cannot be rotated and can be locked. When unlocked, the lever 30 can be rotated with the second locking piece 50 attached.
As described above, the locking mechanism of the door can be securely locked to the handle with a minimum number of parts and a simple mounting process even when the handle has no locking means, and has a locking means. The handle can be provided with a double lock function. In addition to the handle designed on the assumption that the locking mechanism of the opening and closing door is mounted, the locking mechanism can be mounted on the existing handle only by screwing the lever 30. It can be done.

DESCRIPTION OF SYMBOLS 10 Base 20 Shaft part 30 Lever 40 1st locking piece 50 2nd locking piece 60 Locking means 70 Door

Claims (4)

A base fixed to the door; a shaft portion protruding from the base to the front side and the back side; and a rod-like lever connected to or integrally formed with the shaft portion protruding to the front side and rotatable relative to the base. In the locking mechanism of the door opening / closing handle,
A first locking piece provided on the door side so as not to rotate, and a second locking piece that rotates together with the lever;
Locking means for fixing the locking pieces to each other to prevent rotation with respect to the base of the lever,
The first locking piece includes a base end side fixing portion that is sandwiched and fixed between the base and the door, and a first mating portion that extends from the fixing portion to the lever side,
The second locking piece includes a base end side fixing portion fixed to the lever, and a second mating portion extending from the fixing portion to the base side,
The door opening / closing handle characterized in that the first and second mating portions are fixed by the locking means in a state in which the second mating portion approaches the first mating portion by the rotation of the lever. Locking mechanism. The base is provided with a positioning projection on the back side,
The door is provided with a shaft mounting hole and a positioning portion. The shaft portion is passed through the shaft mounting hole, and the positioning projection of the base is received in the positioning portion, and the base is mounted on the door. Is,
The fixing part of the first locking piece includes a shaft insertion part through which a shaft part protruding from the base to the back side and a protrusion insertion part through which the positioning protrusion can be passed,
When attaching the base to the door, the fixing portion of the first locking piece is disposed between the base and the door, the shaft portion is passed through the shaft insertion portion, and the positioning projection is passed through the protrusion insertion portion. 2. The door opening / closing handle locking mechanism according to claim 1, wherein the door opening / closing handle is locked. The first mating portion and the second mating portion extend in parallel with the axial direction of the shaft portion,
The fixing portion of the second locking piece is provided with a screw insertion portion, and the second locking piece is fixed to the rear surface of the lever through the screw insertion portion.
The second mating portion is bent near the tip of the lever in the fixing portion of the second locking piece and extends toward the base side, and the second mating portion is closer to the tip of the lever than the screw insertion portion. The locking mechanism for the door opening / closing handle according to claim 2, wherein the door opening / closing handle is locked.   A horizontal portion extending in parallel with the axial direction of the shaft portion from at least one of the fixing portion of the first locking piece and the fixing portion of the second locking piece, and an end portion of the horizontal portion A retreating portion extending from the base to the base end side of the lever is provided, and at least one of the first mating portion and the second mating portion is provided at an end of the retreating portion. 3. A door opening / closing handle locking mechanism according to 3.

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