JP2006316479A - Door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking device wherein a rod does not make a noise even when the door is in an opened state and also a tip of the rod can be engaged to an upper/lower frame of a cabinet body without a hooking. <P>SOLUTION: The door locking device is vertically moved with a handle operation for locking the rod 3, which is supported by a rod supporting metal fitting 2 firmly fixed to an upper/lower part of the inner side of the door. Herein, of the tip portion of the rod 3, a perpendicular part 7 is a portion engaging to the rod supporting metal fitting 2 in a locking state is a perpendicular part 7 while a part 8 inclined toward the door is a portion engaging to the rod supporting metal fitting 2 in an unlocking state, so as to prevent a noise in the unlocking state. A resin member 10 is provided to a door-side portion of an opening hole 4 of the rod supporting metal fitting 2, which does not get into contact with the rod 3 in the locking state, so that a noise preventing effect is furthermore increased. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a door locking device that locks a cabinet door using a rod bar that slides up and down by a handle operation.

  In the conventional door locking device, the rod rod supported by the rod rod support bracket fixed to the upper and lower parts of the inner side surface of the door is moved up and down by the operation of the handle attached to the door surface, and the tip of the rod rod is moved to the cabinet body. A structure in which the door is held in a closed state by engaging with the upper and lower frames is generally used. The rod rod support bracket of such a locking device is composed of a metal plate having an opening hole with a margin with respect to the outer diameter of the rod rod, and is provided between the door and the cabinet body. The rod rod can be slid while compressing the packing.

  However, at the initial stage of the locking operation, the tip of the rod bar is on the near side of the upper and lower frames of the cabinet body by the thickness of the packing. There is a problem that it is difficult to engage smoothly.

  Therefore, as in Patent Document 1, if the tip of the rod rod is inclined and the handle is operated in the locking operation, the tip of the rod rod moves closer to the door from the inside of the cabinet than the frame of the cabinet body. Smooth engagement is possible. When the door is open, the vertical part of the rod bar is located in the opening hole of the rod bar support bracket, and during the locking operation, the inclined part of the rod bar is located in the opening hole and the door is closed. In this state, the vertical portion closer to the handle than the inclined portion of the rod rod is located in the opening hole. The opening hole portion of the rod rod support fitting of such a door lock device needs to have a size that allows the inclined portion of the lock rod to pass through, and the size is relative to the diameter of the lock rod. It's quite big.

  For this reason, when the cabinet door is closed, the rod rod does not move in the horizontal direction because the tip of the rod rod is engaged with the upper and lower frames and the door of the cabinet body. However, when the door is opened, the tip of the rod rod is supported only by the opening hole portion having a margin with respect to the outer diameter of the rod rod of the rod rod support bracket, and can move in the horizontal direction. For this reason, there was a problem that the inner surface of the opening hole portion and the rod rod hit each other to generate rattling and noise.

So, there is also a method to eliminate the noise by attaching a resin member to the entire circumference of the opening hole portion of the rod support bracket, but when locking, the rod stick is pressed away from the door by the reaction force of packing compression, There was a possibility that the portion of the resin member opposite to the door would break.
JP 2002-159107 A

  The present invention solves the above-mentioned conventional problems, and the rod rod does not emit noise even when the door is opened, and the tip of the rod rod is connected to the upper and lower parts of the cabinet body without being caught by the thickness of the packing. It is made in order to provide the door locking device which can be engaged with a frame.

  The door locking device of the present invention, which has been made to solve the above problems, is a handle in which a rod bar supported by an opening hole portion of a rod bar support fitting fixed to the upper and lower portions of the inner surface of the door is attached to the door surface. In the door locking device that is moved up and down by the operation of the above, the portion of the rod rod tip that engages the rod rod support bracket in the locked state is the vertical portion, and the rod rod support bracket engages in the non-locked state. The portion is an inclined portion in the door direction. In addition, the noise prevention effect can be further enhanced by providing a resin member on the door side portion of the opening hole portion of the rod rod support fitting that does not contact the rod rod in the locked state.

  According to the first aspect of the present invention, the portion of the rod rod tip that engages with the rod rod support fitting in the locked state is a vertical portion, and the portion that engages with the rod rod support fitting in the unlocked state is in the door direction. Because the rod rod does not make noise when it is unlocked with the door open, the rod rod does not make noise when the door is opened, and the tip of the rod rod slides close to the door. It can move without being caught by the thickness of the packing and can obtain the effect of fastening the door to the cabinet.

  Moreover, since the invention described in Claim 2 provides the resin member in the door side part of the opening hole part of a rod support bracket which does not contact a rod bar in the locked state, noise is further prevented. Is something that can be done.

Hereinafter, preferred embodiments of the present invention will be described.
In FIG. 1, reference numeral 1 denotes a cabinet door, and rod rod support fittings 2 are fixed to the upper and lower portions of the inner side surface of the door. Reference numeral 3 denotes a rod rod, and the tip portion of the rod rod is supported through the opening hole 4 of the rod rod support fitting 2 as shown in FIGS. The base is pivotally attached to the end of the link 5 that is rotated by the operation of a handle attached to the door surface. Therefore, when the link 5 is rotated by the handle operation, the rod bar 3 slides in the vertical direction, and its tip engages with the inner surface of the frame 6 of the cabinet body as shown in FIG. 2, and is locked so as not to open the door 1. can do. A roller 9 is preferably provided at the tip of the rod rod 3. The above configuration is the same as the conventional one.

  However, in the present invention, the tip of the rod rod 3 is bent, and the portion engaged with the rod rod support bracket 2 in the locked state as shown in FIG. 2 is the vertical portion 7, and the rod rod in the non-locked state as shown in FIG. A portion engaging with the support metal fitting 2 is an inclined portion 8 in the door direction. For this reason, in the non-locking state of FIG. 3, the clearance between the rod bar 3 and the opening hole 4 of the rod bar support fitting 2 is reduced, and rattling can be suppressed and noise can be reduced.

  Further, when the rod rod 3 is advanced by operating the handle from the state of FIG. 3, since the inclined portion 8 is guided by the rod rod support fitting 2, the tip of the rod rod 3 slides while approaching the direction of the door 1. . For this reason, in the case of the conventional rod rod that has been slid vertically, even if the hook is caused by the thickness of the packing, in the present invention, the rod rod 3 can move without being caught and the effect of tightening the door 1 to the cabinet can be obtained.

  FIG. 4 and subsequent figures show an embodiment of the invention of claim 2. In this embodiment, a resin member 10 is attached to the opening hole 4 of the rod rod support fitting 2. The resin member 10 is made of, for example, polyethylene and preferably has a normal hardness to a soft hardness. In this embodiment, as shown in FIGS. 6 and 7, a resin member 10 having a U-shaped cross section with a horizontal slit in the center is attached so as to sandwich the rod rod support fitting 2.

  The resin member 10 is disposed in a portion on the door side that does not come into contact with the rod 3 in the locked state. As shown in the plan view of FIG. 5, in this embodiment, a rectangular resin member 10 having a right-angled slit is fitted into the corner 11 of the rod rod support bracket 2, and the door side of the opening hole 4 is inclined. Blocked. However, the shape and attachment method of the resin member 10 are not limited to the embodiment, and it goes without saying that various modifications are possible.

  Such a resin member 10 does not come into contact with the rod rod 3 in the locked state shown in FIG. 6, and the rod rod 3 comes into direct contact with the rod rod support bracket 2 and can be firmly locked by metal touch. The resin member 10 is not broken by the force received from the rod 3. In addition, in the unlocked state shown in FIG. 7, the resin member 10 comes into contact with the rod bar 3, so that noise generation can be prevented more reliably.

  In the locked state, if the portion of the rod rod 3 that engages with the rod rod support fitting 2 is an inclined portion, when the rod rod 3 and the rod rod support fitting 2 are pressed against each other, the handle is returned to the rod rod 3. There is a risk of unlocking with force. Therefore, in the locked state, the portion of the rod rod 3 that engages with the rod rod support bracket 2 is a vertical portion, and even if the rod rod 3 and the rod rod support bracket 2 are pressed against each other, force is required to return the handle to the rod rod 3. Is not to be added.

  As described above, according to the present invention, the rod rod 3 does not hit the rod rod support fitting 2 and generate noise even in the unlocked state where the door is opened. Moreover, since the tip of the rod 3 slides while approaching the door 1, it can move without being caught by the thickness of the packing, and the effect of fastening the door 1 to the cabinet can be obtained. If the resin member 10 is used, noise can be further prevented.

It is the perspective view which looked at the door from the inside. It is principal part sectional drawing which shows the locking state of 1st Embodiment. It is principal part sectional drawing which shows the non-locking state of 1st Embodiment. It is a principal part perspective view of 2nd Embodiment. It is a principal part top view of 2nd Embodiment. It is principal part sectional drawing which shows the locking state of 2nd Embodiment. It is principal part sectional drawing which shows the non-locking state of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 2 Rod rod support bracket 3 Rod rod 4 Opening hole 5 Link 6 Cabinet body frame 7 Vertical portion 8 Inclined portion 9 Roller 10 Resin member 11 Corner of rod rod support bracket 2

Claims (2)

  In the door locking device that locks the rod bar supported by the opening hole of the rod bar support bracket fixed to the upper and lower sides of the door inner surface by operating the handle attached to the door surface, the rod rod tip Of these, the door locking device is characterized in that the portion engaging with the rod rod support fitting in the locked state is a vertical portion, and the portion engaging with the rod rod support fitting in the non-locked state is an inclined portion toward the door. .   2. The door locking device according to claim 1, wherein a resin member is provided on a door side portion of the opening hole portion of the rod support bracket that does not contact the rod in the locked state.

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