JP2009249890A - Door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking device stopping and holding a rotating shaft section at a desired rotating position by simply combining parts with each other. <P>SOLUTION: This door locking device 1 is provided with: an elastic member 5 having a locking device body 1 attached to a door and a rotating shaft section 2 extending through the locking device body 1 and rotatably fixed to an elastic body holding section 4 formed on a rotating shaft section support section 3 for supporting the rotating shaft section 2 by the rear surface of the locking device body; and a locking piece 7 so connected to the rotating shaft section 2 that the elastic member 5 is held by the rear surface of the locking device body 1 and rotated when the rotating shaft is rotated for locking and unlocking. The elastic member 5 comprises locking sections 6a, 6b on the contact surface thereof on the locking piece 7. The locking piece 7 is provided with sections to be locked 8a, 8b, 8c, 8d to which the locking sections 6a, 6b are locked. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door lock device. More specifically, the present invention relates to a door lock device that is a box for storing electronic equipment or the like and has a problem of unlocking due to vibration of the box.

  The door attached to the electronic device storage box so as to be openable and closable includes a so-called left-open door with a hinge provided on the right side of the box, a so-called right-open door with a hinge provided on the left side of the box, and a hinge. There is a so-called lower opening door provided on the upper side of the box, and a so-called upper opening door provided with a hinge on the lower side of the box.

  The door locking device for the electrical equipment storage box is a locking device in which a rotating shaft is rotatably mounted in a through-hole of the door locking device main body attached to the door, and arranged on the back side of the door locking device main body. It is configured by connecting the plate to the rotating shaft part, and operates the connecting shaft from the surface of the main body to rotate the locking plate to lock or unlock the box as engaged or disengaged. However, due to the vibration of the internal equipment and peripheral equipment stored in the electrical equipment storage box, the lock plate is displaced from the lock position, and the lock piece moves in the gravity direction under its own weight, and is unlocked. There was a problem that the door opened.

  For this problem, for example, the unlocking position of the locking plate is upward and the locking position is leftward in the left opening door, and the unlocking position of the locking plate is upward and the locking position is rightward in the right opening door. This can be dealt with. In addition, in the case of an open door, it can be dealt with by providing a door locking device on the side of the electrical equipment storage box and setting the unlocking position of the locking plate upward and the locking position to the right or left. . However, there has been a demand for solving the problem without restricting the installation position of the door locking device and the unlocking position of the locking plate.

Patent Document 1 discloses a technique of a rotary click mechanism that can stop and hold a connecting shaft at a desired rotational position. In this technology, the door lock device main body is provided with a locking portion, and the guide plate through the connecting shaft is fixed to the locking portion of the door lock device main body in a non-rotatable manner. It is fixed non-rotatably by a retaining ring, and the connecting shaft is stopped and held at a desired rotational position by locking a click hole provided in the guide plate and a click projection provided in the leaf spring. However, this technique has a problem that the number of necessary parts is large and the assembling work is complicated.
JP-A-10-121798

  An object of the present invention is to provide a door lock device that can stop and hold a rotary shaft portion at a desired rotational position by combining simple parts.

  The door lock device according to the present invention, which has been made to solve the above-mentioned problems, rotates on the back surface of the lock device body, the lock device body that is attached to the door, the rotating shaft that passes through the lock device body. An elastic member fixed to the elastic body holding portion provided on the rotating shaft supporting portion for holding the shaft portion and non-rotatably fixed to the rotating shaft portion so that the elastic member can be sandwiched between the back surface of the locking device body. A door locking device provided with a locking piece that rotates and locks and unlocks in conjunction with rotation of the rotating shaft portion, and is locked to a contact surface with the locking piece on the elastic member And a locked portion that is locked by the locking portion is provided on the locking piece.

  The door lock device according to claim 2 is connected to the lock shaft main body attached to the door, the rotary shaft portion passing through the lock device main body, and the rotary shaft portion, and interlocked with the rotation of the rotary shaft portion. A locking device that rotates and locks and unlocks, and an elastic member that is fixed to the elastic body holding portion provided on the locking piece so as not to rotate. The member is provided with a locking portion on the contact surface with the rotating shaft support portion that holds the rotating shaft portion on the back surface of the locking device body, and is locked to the rotating shaft support portion by the locking portion. A locked portion is provided.

  The door locking device according to claim 3 has a locked portion when the locking piece is engaged with the opening edge of the box in the door locking device according to claim 1 or 2 and is locked. The engaging part of the elastic member is located relative to the position.

  In addition, as described in Claim 4, it is preferable that the shape of the to-be-latched part provided in the locking piece is a hole, a recessed part, or a cutout shape.

  According to the door lock device according to claim 1, the locking portion of the elastic member that is non-rotatably held by the elastic body holding portion provided in the door lock device main body and the locked portion of the locking piece Engagement makes it possible to hold the locking piece in the engagement position.

  According to the door lock device according to claim 2, the locking portion of the elastic member that is non-rotatably held by the elastic body holding portion provided in the locking piece, and the rotation shaft portion support portion of the lock device main body are provided. Due to the engagement with the locked portion, the locking piece can be held in the engagement position.

  According to the door lock device of the third aspect, the locking plate is held at the locking position, and the locking plate is moved from the locking position by the vibration of the internal device or the peripheral device stored in the electric device storage box. The problem of unlocking and opening the door can be avoided.

  Moreover, according to the door lock apparatus which concerns on Claim 3, engagement or non-engagement operation of a latching | locking part and a to-be-latched part becomes easy, and the operativity is improved.

  Hereinafter, the door lock apparatus which concerns on the door lock apparatus which concerns on Claim 1 is demonstrated in detail based on FIGS. 1 is an exploded perspective view of a door locking device according to claim 1, FIG. 2 is a rear view in which an elastic member is held by an elastic member holding portion on the back surface of the locking device body according to claim 1, and FIG. FIG. 4 is an external view of a door locking device according to the present invention attached to an electric device storage box having an open door, and FIG. 4 is a door lock according to the present invention attached to an electric device storage box having a so-called upper opening door. FIG. 5 is a cross-sectional view of the ABCD plane of FIG. 3 or FIG. 4 in which the lock plate of the door lock device according to claim 1 is rotated and engaged with the electric equipment storage box to be locked. 6 is an enlarged perspective view of the rear part of the door locking device of FIG. 3 or FIG. 4, FIG. 7a is a top view of the elastic member of FIG. 1, FIG. 7 (b) is a cross-sectional view of the elastic member of FIG. c) is an FF plane cross-sectional view of the elastic member of FIG. 1, FIG. 8 is a rear view of the lock piece of FIG. 1, and a first form of the lock piece, and FIG. 9 is a second form of the lock piece. .

  As shown in FIG. 1, the door lock device of the present invention includes a lock device main body 1, a rotary shaft portion 2 that penetrates the lock device main body 1, and a rotary shaft support portion 3 on the back of the lock device main body 1. An elastic member 5 fixed to the elastic member holding portion 4 provided in the non-rotatable state, and a locking piece 7 connected to the rotary shaft portion 2 so as to be able to hold the elastic member 5 on the back surface of the locking device body 1. Composed.

  As shown in FIG. 1, the locking device body 1 has a rotation shaft portion 2 that penetrates the locking device body 1, and a rotation shaft portion support portion 3 around the rotation shaft portion 2 on the back surface of the locking device body 1. Is formed. An elastic member holding portion 4 is formed on the rotating shaft member support portion 3. The locking device main body 1 is attached to the door surface of the electronic device storage box 12 as shown in FIG. 3 or FIG. 4, and then the locking device main body fixing screw hole 11 and the locking device main body fixing shown in FIG. The locking device main body fixing plate 9 is applied so that the screw through holes 10 of the plate 9 are overlapped, and fixed with the locking device main body fixing screws 14. FIG. 5 or FIG. 6 shows the door locking device fixed to the electronic device storage box.

  The rotating shaft 2 is rotatably supported in a rotating shaft support 3 provided on the back surface of the locking device main body 1. The rotating shaft portion 2 is rotatably mounted in a through hole of the locking device main body 1 attached to the door. The rotating shaft 2 is rotated by rotating shaft operating means provided on the door side of the locking device body 1. The rotating shaft operating means includes means for rotating by inserting a coin or a minus driver as shown in FIG. 3 or FIG. 4, means for rotating by inserting a plus driver, and a dedicated handle at the time of operation. There are means for performing a rotation operation.

  The elastic member holding part 4 has a shape in which a cutout shape 5a formed from the central part toward the peripheral part of the elastic member 5 shown in FIG. 7A can be fitted. Moreover, it has the thickness equivalent to the thickness 5b of the elastic member 5 shown by FIG.7 (c). FIG. 2 shows a state diagram in which the elastic member 5 is fitted in the elastic member holding portion 4.

  The elastic member 5 is fixed to the elastic body holding portion 4 provided on the upper surface of the rotating shaft support portion 3 that holds the rotating shaft portion 2 so as not to rotate. As shown in FIGS. 7A to 7C, the elastic member 5 is provided with locking portions 6a and 6b. In addition, what is necessary is just to provide at least one latching | locking part, and it is not limited to two places of 6a, 6b.

  As shown in FIG. 5 or FIG. 6, the positions of the locking portions 6 a and 6 b are set so that the locking piece 7 is engaged when the locking piece 6 is engaged with the opening edge 13 of the box 12 and is locked. The locking plate is held at the locking position by providing the locking portions 8a, 8b, 8c, and 8d, and the locking plate is moved away from the locking position by vibrations of internal devices and peripheral devices stored in the electrical device storage box. The problem of moving and unlocking and opening the door can be avoided. In addition, the operator can reliably determine the locking position and the unlocking position by changing the operational feeling of the rotation operation.

  As shown in FIG. 6, the locking piece 6 is connected to the rotary shaft portion 2 by a locking piece fixing screw 15 so that the elastic member 5 can be clamped on the back surface of the locking device body 1. As shown in FIG. 8 or FIG. 9, the locking piece 6 has locked portions 8a, 8b, 8c, 8d that are locked by locking portions 6a, 6b provided on the elastic member 5, as shown in FIG. As shown, the locking piece 6 is engaged or disengaged with the opening edge 13 of the box 12 in conjunction with the rotation of the rotating shaft 2 to lock or unlock. The locked portions 8a, 8b, 8c, and 8d may have a hole shape as shown in FIG. 8, a notch shape as shown in FIG. 9, or a recess shape not shown.

  The locked portions 8a, 8b, 8c, and 8d locked by the locking portions 6a and 6b are not removed from the locking portions 6a and 6b when the electronic device vibrates in the electronic device storage box. In the case where unlocking is necessary, the rotating shaft portion can be rotated to apply pressure to the elastic member to release the restraint. Yes.

  In the above embodiment, the embodiment of the door locking device corresponding to the invention according to claim 1 in which the locked portion is provided in the locking piece has been described, but the rotating shaft portion is held on the back surface of the locking device body. It is also possible to provide a door locking device according to claim 2 in which a locked portion is provided on the rotating shaft portion supporting portion.

It is a disassembled perspective view of the door lock apparatus which concerns on this invention. It is the rear view which made the elastic member holding part of the back of a locking device main body hold | maintain an elastic member. It is the external view attached to the electric equipment storage box of a left opening door. It is an external view of the door lock apparatus attached to the electric equipment storage box of an upper door. FIG. 5 is a cross-sectional view of the ABCD surface of FIG. 3 or FIG. 4 in which the door lock device is locked. FIG. 5 is an enlarged perspective view of a rear part of the door lock device of FIG. 3 or FIG. 4. It is a top view of the elastic member of FIG. It is EE surface sectional drawing of the elastic member of FIG. It is FF surface sectional drawing of the elastic member of FIG. It is a 1st form of a locking piece. It is a 2nd form of a locking piece.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Locking device main body 2 Rotating shaft part 3 Rotating shaft part support part 4 Elastic member holding part 5 Elastic member 6a, 6b Locking part 7 Locking piece 8a, 8b, 8c, 8d Locked part 9 Locking apparatus main body fixation Plate 10 Screw through hole 11 Locking device body fixing screw hole 12 Electronic device storage box 13 Opening edge 14 of box body Locking device body fixing screw 15 Locking piece fixing screw 16 Door locking device

Claims (4)

A locking device body attached to the door;
A rotating shaft that penetrates the locking device body;
An elastic member fixed to the elastic body holding portion provided in the rotating shaft support portion that holds the rotating shaft portion on the back surface of the locking device body;
A door lock provided with a locking piece that is coupled to the rotary shaft portion so that an elastic member can be held on the back surface of the main body of the locking device, and is rotated and locked in conjunction with the rotation of the rotary shaft portion. A device,
The elastic member is provided with a locking portion on a contact surface with the locking piece, and the locking piece is provided with a locked portion to be locked by the locking portion. apparatus. A locking device body attached to the door;
A rotating shaft that penetrates the locking device body;
A locking piece that is connected to the rotating shaft portion and rotates in conjunction with the rotation of the rotating shaft portion to be locked and unlocked,
A door locking device comprising an elastic member fixed to the elastic body holding portion provided in the locking piece in a non-rotatable manner,
The elastic member is provided with a locking portion on a contact surface with a rotation shaft portion support portion that holds the rotation shaft portion on the back surface of the locking device body, and the rotation shaft portion support portion is locked by the locking portion. The door locking device characterized by providing the to-be-latched part.   The locking part of the elastic member is positioned relative to the position where the locked part is present when the locking piece engages with the opening edge of the box and becomes locked. The door lock apparatus of Claim 1 or 2.   The door locking device according to claim 1 or 2, wherein the locked portion provided in the locking piece is a hole, a concave portion or a cutout shape.

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