JP6180777B2 - Rack door locking structure - Google Patents

Description

  Embodiments described herein relate generally to a rack door locking structure.

  As shown in FIG. 8, two doors (left door (first door) 2a and right door (second door)) are arranged in the front opening of the rack 1, as shown in FIG. A rack door 2 having a double door structure in which the door 2b) is supported so as to be openable and closable on both sides from the center is known. FIG. 9 is a perspective view showing a state in which the left door 2a and the right door 2b of the rack door 2 are opened. In the rack door 2 having the double door structure, one of the left and right doors, for example, the right door 2b has a handle 4 that rotates about a rotation shaft 3 (see FIG. 11).

  As shown in FIG. 10, one end of the rotation shaft 3 is fixed to the back side of the handle 4. A stopper (stopping member) 5 is fixed to the other end of the rotating shaft 3. Two circular holes 6 a and 6 b are formed in the stopper 5. One circular hole 6a is inserted with a positioning pin 3a protruding from the end of the rotating shaft 3, and the other circular hole 6b is inserted with a fixing screw 3b. It has become. The tip of the screw 3b is screwed into a screw hole (not shown) formed at the end of the rotating shaft 3. The stopper 5 is rotated together with the rotation of the handle 4. The right door 2b accommodates a shaft support portion (not shown) that pivotally supports a rotating shaft 3 that is a rear part of the handle 4 and a stopper 5 and rotates around the rotating shaft 3. A housing space (not shown) that allows the stopper 5 to rotate is formed. Furthermore, a rectangular opening 2b1 is formed on the surface of the right door 2b facing the left door 2a to allow the stopper 5 to be taken in and out of the accommodation space of the right door 2b.

  As shown in FIG. 9, the left door 2a has a rectangular hole (engagement recess) 6 into which the stopper 5 is inserted. By the rotation of the handle 4, the stopper 5 is inserted into the hole 6 of the left door 2 a so as to be put in and out. Then, the stopper 5 is inserted into the hole 6 of the left door 2a, and the stopper 5 is hooked into the hole 6, so that the rack door 2 is held in a closed state, and plays the role of locking. In addition, when the handle 4 is rotated, the stopper 5 is pulled out from the hole 6 of the left door 2a so that the rack door 2 can be opened.

  Furthermore, as an example of a door locking means for preventing the rack door 2 from being opened, there is a method of incorporating a key mechanism portion 8 having a keyhole portion 7 in the main body of the handle 4. Here, by inserting a key (not shown) into the keyhole portion 7 and hooking the key, the rotation of the handle 4 itself is suppressed and the rack door 2 is not opened.

  FIG. 12 shows another example of the door locking means. Here, L-shaped additional metal fittings 9a and 9b are fixed to the surfaces of the left door 2a and the right door 2b, respectively, and the L-shaped additional metal fittings 9a and 9b are abutted when the left and right doors 2a and 2b are closed, There is a structure in which an insertion hole 9d of the padlock 10 is provided in the abutting portion 9c. In this case, when the left and right doors 2a and 2b are closed, the rack door is forcibly inserted by inserting the latch portion 10a of the external padlock 10 into the insertion hole 9d of the abutting portion 9c of the L-shaped additional metal fittings 9a and 9b. 2 is configured not to open.

JP 2012-41735 A

  In a door locking means for inserting a key (not shown) separate from the keyhole 7 into the keyhole 7 attached to the handle 4 and hooking the key, it is necessary to manage a key separate from the keyhole 7. And if the key separate from the keyhole portion 7 is lost, there is a problem that the rack door 2 cannot be opened.

  In addition, as shown in FIG. 12, there are also door locking means using a dial-type padlock 10 in which a plurality of dials arranged with numbers and characters are juxtaposed and unlocked by correctly combining the numbers and characters of the dial. is there. In this case, key management is not required, but it is necessary to have a rack structure in which the padlock 10 can be hooked from the beginning. When the existing rack door 2 is later locked with the padlock 10, an L-shaped additional metal fitting 9a for remodeling the rack door 2 and placing the padlock 10 on the surfaces of the left door 2a and the right door 2b, It is necessary to fix 9b. Therefore, it may take a lot of labor, cost and time.

  The present embodiment has been made by paying attention to the above circumstances. In a rack door having a rotary handle without a key function, the rack door can be easily locked with a padlock without modifying the rack door. It is to provide a locking structure.

According to the embodiment, one first door of the rack door having a double door structure includes a handle that rotates about a rotation shaft and a stop member that is fixed to the rotation shaft of the handle. The other second door has an engaging recess into which the stopper member is inserted. When the stop member rotates in conjunction with the rotation of the handle, the stop member is inserted into the engaging recess so as to be able to be taken in and out. Here, the rack member is held in a closed state by inserting the stop member into the engagement recess, and the stop member is pulled out from the engagement recess by the rotation of the handle. The door can be opened. The movement of the stop member, which is attached to the rack door and is inserted into the engagement recess when the rack door is closed , is regulated at a position corresponding to the movement locus of the stop member. A drawer operation restricting portion is detachably provided on the second door.

The perspective view which shows the state before the assembly | attachment of the drawer | drawing-out action control part concerning the locking structure of the rack door of 1st Embodiment. The longitudinal cross-sectional view of the principal part which shows the assembly | attachment state of the drawer | drawing-out action control part concerning the locking structure of the rack door of 1st Embodiment. The perspective view which shows the state which opened the 1st door and 2nd door of the rack door of 1st Embodiment. The perspective view from the side surface which shows the state in which the control member of the drawer | drawing-out operation control part concerning the locking structure of the rack door of 1st Embodiment is hold | maintained in the control release position. The perspective view from the side surface which shows the operation state which the control member of the drawer | drawing-out operation control part concerning the locking structure of the rack door of 1st Embodiment rotated to the control position. The perspective view from the front which shows the operation state which the control member of the drawer | drawing-out operation control part rotated to the control position in the state which closed the 1st door and 2nd door of the rack door of 1st Embodiment. The perspective view which shows the state by which the padlock is attached to the overlapping part of the fixing member of the drawer | drawing-out operation control part concerning the locking structure of the rack door of 1st Embodiment, and a control member. The front view which shows the state which closed the 1st door and 2nd door of the rack door. The perspective view which shows the state which opened the 1st door and 2nd door of the rack door. The perspective view which shows the state before the assembly | attachment of the handle and stop member of the 1st door of a rack door. The perspective view which shows the assembly | attachment state of the handle and stop member of the 1st door of a rack door. The perspective view which shows the state by which the padlock was attached in the state which closed the 1st door and 2nd door of the rack door.

[First Embodiment]
(Constitution)
1 to 7 show a first embodiment. In this embodiment, as shown in FIGS. 8 and 9, a novel locking structure that is attached to the rack door 2 having a double door structure is provided. Since the basic structure of the rack door 2 having the double door structure is the same as that shown in FIGS. 8 and 9, the same reference numerals in FIGS. 1 to 7 denote the same parts as in FIGS. The description is omitted.

  In the present embodiment, the left door 2a of the rack door 2 is provided with a pull-out operation restricting portion 21 that suppresses the movement of the stopper 5 that is interlocked with the rotation of the handle 4 as shown in FIG. The pulling operation restricting portion 21 includes a fixing member 22 that is a fixing member that is detachably fixed to the left door 2a, and a restricting member 23 that restricts the stopper 5 from being pulled out from the hole 6 of the left door 2a. .

  The fixing member 22 includes a substantially L-shaped L-shaped flat plate portion 24 and a U-shaped bent portion 25 obtained by bending one end portion of the L-shaped flat plate portion 24 into a substantially U-shape. The U-shaped bent portion 25 has a pair of parallel flat plates (a first flat plate portion 25a and a second flat plate portion 25b) that are opposed to each other. The first flat plate portion 25a and the second flat plate portion 25b are connected by a flat plate-like connecting portion 25c. On the one first flat plate portion 25a side, a joining surface is formed that is joined to the vertical frame portion 2a1 at the edge of the left door 2a so as to be able to contact and separate. On the other side of the second flat plate portion 25b, there is a pressing means 26 that presses the joint surface of the first flat plate portion 25a in a direction in which it is pressed against the vertical frame portion 2a1.

  In the present embodiment, the pressing means 26 has a screw-type fixing screw 27 as shown in FIG. As shown in FIG. 2, a screw hole portion 25b1 that is screwed with the fixing screw 27 is formed on the second flat plate portion 25b side. Then, the fixing screw 27 is screwed into the screw hole portion 25b1 of the second flat plate portion 25b, whereby the tip of the fixing screw 27 is brought into pressure contact with the vertical frame portion 2a1 at the edge of the left door 2a. As a result, the pulling operation restricting portion 21 is detachably locked to the left door 2a by the screwing operation of the fixing screw 27. At this time, with the vertical frame portion 2a1 at the edge of the left door 2a being sandwiched between the tip of the fixing screw 27 and the joining surface of the first flat plate portion 25a, the fixing member 22 is the edge of the left door 2a. Are fixed to the vertical frame portion 2a1.

  Further, the L-shaped flat plate portion 24 of the fixing member 22 is formed with a downward bent portion 24 a that is bent downward on the opposite side to the U-shaped bent portion 25. The downward bent portion 24a is provided with a rotation fulcrum 28 of the restricting member 23 on the upper end side, and a padlock attachment hole 30 to which a later-described padlock 29 (see FIG. 7) is attached.

  The restriction member 23 has an L-shaped plate 31 that is a substantially L-shaped metal fitting as a whole. The L-shaped plate 31 is formed in a state in which two straight portions (a first straight portion 31a and a second straight portion 31b) are arranged substantially at right angles. The front end portion of the first straight portion 31a (the end opposite to the joint portion with the second straight portion 31b) is an L-shape of the fixing member 22 via a rotation fulcrum 28 made of, for example, a caulking material or a pin. A rotating end portion 32 is formed that is rotatably connected to the flat plate portion 24 and is rotatably connected to the fixing member 22. In addition, a regulation end 33 that regulates the operation of pulling out the stopper 5 from the hole 6 of the left door 2a is formed at the tip of the second straight part 31b. That is, the restricting member 23 is structured to be attached to the fixed member 22 via the rotation fulcrum 28, and the restricting member 23 rotates around the rotation fulcrum 28.

  As shown by a solid line in FIG. 5, the restriction member 23 moves to a position where the restriction end portion 33 at the tip of the second straight portion 31b corresponds to the movement track of the stopper 5 on the opening surface of the hole 6 of the left door 2a. As a result, the restriction end 33 restricts the movement of the stopper 5 inserted in the hole 6 of the left door 2a. When the handle 4 of the right door 2b is rotated in this state, the stopper 5 is brought into contact with the restriction end 33 of the restriction member 23, so that the movement of the stopper 5 is stopped and the handle 4 is turned. Are now regulated. Thereby, the operation | movement by which the fastener 5 is pulled out from the hole 6 of the left door 2a is controlled.

  Further, the restricting member 23 has an overlapping portion 34 where the fixing member 22 and the restricting member 23 overlap with each other when the restricting member 23 is moved to the restricting position indicated by a solid line in FIG. The overlapping portion 34 is formed in a connecting portion 31c between the first straight portion 31a and the second straight portion 31b. A padlock mounting hole 35 is provided in the overlapping portion 34 between the fixing member 22 and the regulating member 23. The padlock mounting hole 35 of the restricting member 23 is disposed at a position corresponding to the padlock mounting hole 30 of the fixing member 22.

  In addition, the first straight portion 31 a of the restricting member 23 is formed with a handle portion 36 formed of a tongue piece on the outer edge portion on the base end side side so as to be bent at a substantially right angle with respect to the plate surface of the restricting member 23. Then, by placing a finger or the like on the handle portion 36, the restriction member 23 is placed between the restriction position (see FIG. 5) and the restriction release position (see the phantom line position in FIGS. 4 and 5) deviated from the restriction position. It is possible to rotate around the rotation end 32.

  As shown in FIG. 7, the padlock 29 includes a substantially U-shaped latch member 37 a that is locked in a locked state on an object to be locked, and a main body 37 in which a lock mechanism (not shown) is built. The lock mechanism has a dial-type locking portion 38, for example. The dial-type locking portion 38 is provided with a plurality of dials 39 in which numbers and characters are arranged side by side, and unlocks by properly combining the numbers and characters of the dial 39. Here, at least a part of the latch member 37a is separated from the main body 37 and inserted into and removed from the padlock mounting holes 30 and 35 by operation of the dial type locking portion. Then, in a state where the latch member 37a of the padlock 29 is inserted into the padlock mounting holes 30 and 35, both ends of the latch member 37a are locked to the main body 37 so that the padlock 29 is attached to the drawer operation restricting portion 21. It has become.

(Function)
Next, the operation of the above configuration will be described. The locking structure of the rack door 2 according to the present embodiment is used by attaching a drawer operation restricting portion 21 to the left door 2a of the rack door 2 as shown in FIG. At this time, the pull-out operation restricting portion 21 can be attached by sliding the U-shaped bent portion 25 of the fixing member 22 to the vertical frame portion 2a1 of the left door 2a as shown by an arrow in FIG. It has a structure (see FIG. 2). Here, in the U-shaped bent portion 25 of the fixing member 22, the distance between the first flat plate portion 25a and the second flat plate portion 25b is larger than the thickness of the vertical frame portion 2a1 of the left door 2a. Is set. Thereby, the width | variety is given to the thickness of the vertical frame part 2a1 of the left door 2a to which the U-shaped bending part 25 of the fixing member 22 is attached. Note that when the drawer operation restricting portion 21 is attached, for example, the restricting member 23 is preferably held in advance at the restriction releasing position (see the phantom line position in FIGS. 4 and 5). Here, the restricting member 23 does not necessarily have to be held in advance at the restricting release position (see the phantom line position in FIGS. 4 and 5), and at least the handle 4 is rotated to attach the stopper 5 to the left door 2a. The restriction member 23 may be moved to the restriction release position before being inserted into the hole 6.

  After the drawer operation restricting portion 21 is attached, the front door opening of the rack 1 is closed by closing the left door 2a and the right door 2b of the rack door 2. At this time, with the left door 2a and the right door 2b closed, the handle 4 is rotated, and the stopper 5 is rotated around the rotation shaft 3 together with the rotation shaft 3 which is the back part of the handle 4. Let As a result, the stopper 5 is inserted into the hole 6 of the left door 2a and the stopper 5 is hooked into the hole 6 so that the rack door 2 is held closed and locked.

  Subsequently, the drawer operation restricting portion 21 is operated. When the pulling operation restricting portion 21 is operated, the restricting member 23 is moved with respect to the fixed member 22 to the restricting position indicated by the solid line in FIG. By this operation, the regulating member 23 is rotated and the regulating end 33 of the regulating member 23 is slid into the lower side of the stopper 5. Thereby, as shown by a solid line in FIG. 5, the restriction end portion 33 of the restriction member 23 is moved to a position corresponding to the movement track of the stopper 5 on the opening surface of the hole 6 of the left door 2a. Therefore, the restricting end portion 33 restricts the movement of the stopper 5 inserted in the hole 6 of the left door 2a.

  Thereafter, the latch member 37 a of the padlock 29 is inserted into the padlock attachment hole 35 of the restriction member 23 and the padlock attachment hole 30 of the fixation member 22 at the position of the overlapping portion 34 where the fixation member 22 and the restriction member 23 overlap. In this state, after both ends of the latch member 37a are locked to the main body 37, the padlock 29 is attached to the drawer operation restricting portion 21 as shown in FIG. Is done. Thereby, when the regulating member 23 is fixed to the fixing member 22 with the padlock 29, the movement of the stopper 5 of the handle 4 is suppressed, and the rack door 2 can be locked.

(effect)
In the rack door locking structure according to the present embodiment having the above-described configuration, the bracket 5 inserted in the hole 6 with the rack door 2 being closed is pulled out from the hole 6 when the rack door 2 is closed. The drawer operation restricting portion 21 for restricting the movement is provided on the left door 2a in a detachable manner. Thereby, in the rack door 2 having the rotary handle 4 having no key function, the padlock 29 can be easily locked without modifying the rack door 2.

  Further, in the present embodiment, the lock mechanism of the padlock 29 includes a dial-type locking portion 38 in which a plurality of dials 39 each having numbers and characters arranged therein are juxtaposed and unlocked by properly combining the numbers and characters of the dial 39. Have This eliminates the need for key management, and there is no risk that the key will be lost and the rack door 2 cannot be opened.

  In the above embodiment, the drawer operation regulating portion 21 is detachably locked to the left door 2a by a screwing operation of the fixing screw 27 as a fixing means for fixing the drawer operation regulating portion 21 to the left door 2a of the rack door 2. However, the fixing means of the drawer operation restricting portion 21 is not necessarily limited to this. For example, a configuration may be adopted in which the fixing screw is omitted by a locking mechanism in which the drawer operation restricting portion 21 is detachably locked to the left door 2a by combining a leaf spring, a wedge action, and the like. Further, the lock mechanism of the padlock 29 may also have an electronic key structure that includes an electronic chip having a memory, a keyboard with numeric keys, and the like, and unlocks the keyboard by properly combining the numbers and characters of the keyboard.

  According to the above embodiment, in a rack door having a rotary handle that does not have a key function, it is possible to provide a rack door locking structure that can be easily locked with a padlock without modifying the rack door. it can.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

    2 ... Rack door, 2a ... Left door (second door), 2b ... Right door (first door), 3 ... Rotating shaft, 4 ... Handle, 5 ... Fitting (stopping member), 6 ... Hole ( Engagement recess), 21...

Claims (6)

A rack door having a double door structure in which a first door and a second door disposed in a front opening of a rack on which an electronic device is mounted is supported to be openable and closable,
The first door has a handle that rotates about a rotation shaft, and a stop member fixed to the rotation shaft of the handle, and the second door is engaged with the stop member inserted therein. Having a recess, and by rotating the stop member in conjunction with the rotation of the handle, the stop member is inserted into the engagement recess so that it can be taken in and out,
The rack member is held in a closed state by inserting the stop member into the engagement recess, and the rack door is opened by being pulled out of the engagement recess by rotation of the handle. It is attached to the rack door that enables operation,
A pull-out operation restricting portion for restricting an operation of pulling out the stop member inserted into the engagement recess with the rack door closed from the engagement recess at a position corresponding to a movement locus of the stop member; A rack door locking structure, wherein the rack door is detachably provided on the door. The pulling operation restricting portion includes a fixing member that is detachably fixed to the second door, and a restricting member that restricts an operation in which the stop member is pulled out from the engagement recess.
The restricting member is a pivot end connected to the fixed member so as to be pivotable, and a restricting position and a restricting position for restricting an operation of the stop member being pulled out from the engaging recess with the pivot end as a center. 2. The rack door locking structure according to claim 1, further comprising a regulating end portion that is rotatable between a regulation release position that is deviated from the first position. The pulling operation restricting portion has an overlapping portion where the fixing member and the restricting member overlap in a state where the restricting member is moved to the restricting position,
3. The rack door locking structure according to claim 2, wherein a padlock mounting hole to which a padlock is mounted is provided at an overlapping portion between the fixing member and the regulating member. The padlock has a latch member that locks in a hooked object and a body with a built-in lock mechanism,
The lock mechanism is provided with a plurality of dials in which numbers and letters are arranged side by side, and has a dial-type locking part that unlocks by properly combining the numbers and letters of the dial,
4. The rack door locking structure according to claim 3, wherein at least a part of the latch member is separated from the main body and inserted into and removed from the padlock mounting hole by operation of the dial-type locking portion. The fixing member has a U-shaped bent portion obtained by bending a flat plate portion into a substantially U shape,
The U-shaped bent portion is formed with a joining surface that is detachably joined to a vertical frame portion at an edge of the second door on one first plane side of a pair of parallel planes that are spaced apart from each other. ,
A pressing unit that presses the first plane in a direction in pressure contact with the vertical frame portion on the other second plane side of the pair of planes;
The rack door locking structure according to claim 2, wherein the drawer operation restricting portion is detachably locked to the second door by an operation of the pressing means.   The rack door locking structure according to claim 5, wherein the pressing means includes a screw-in type fixing screw.

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