JP2004346595A - Locking device of cooling storehouse - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To strengthen a coupling member for coupling a revolving lock with a locking member. <P>SOLUTION: The revolving lock 30 is provided on the front side of a door 12B, and the locking member 37, which is equipped with a pin 38 to be engaged with/disengaged from a catch 65, is turnably supported on the backside thereof by a supporting plate 45. The revolving lock 30 and the locking member 37 are coupled together via the synthetic resin coupling member 50 in such a manner as to be integrally turnable around an axis line. A first coupling plate 51 made of metal is provided on one surface of the coupling member 50 in an axially protrusive manner by insert molding; the pin 38 is fixedly attached by passing through a mounting hole 54 on the leading-end side of the plate 51; a second coupling plate 56 made of metal is elastically fitted into the other surface; a shaft part 33 of the revolving lock 30 is inserted into an insertion hole 57 thereof; and they are coupled together, respectively. The locking member 37 including a body 39 of revolution can be preassembled to the supporting plate 45 with the coupling member 50, and carried in as an assembly 63. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door locking device in a cooling storage.
[0002]
[Prior art]
For example, a large-sized refrigerator such as a prefabricated refrigerator may have a locking device that keeps a door provided at an entrance in a closed state. Conventionally, an example described in Patent Document 1 is known.
As shown in FIG. 13, a lock member is provided with a rotary lock 2 provided on a front surface of a peripheral portion of a door 1 and a pin 3B provided on a protruding end of a rotary shaft 3A on a rear surface side in an orthogonal posture. The rotation shaft 3A of the lock member 3 and the shaft portion 2A of the rotary lock 2 are linearly connected via a connection member 5 made of synthetic resin. Have been. When the rotary lock 2 is rotated to the closed position, the pin 3B of the lock member 3 takes a horizontal position and is locked by the locking portion 7 provided on the peripheral surface of the entrance 7 to close the door. When locked in the state and rotated to the open position, the pin 3B takes a vertical position (dashed line) to release the lock with the locking portion 7 so that the door can be opened. .
Here, the connection member 5 made of synthetic resin is interposed between the rotary lock 2 and the lock member 3 in order to shut off heat transfer between the inside and outside of the refrigerator. It is due to.
[0003]
[Patent Document 1]
JP 2001-324259 A
[0004]
[Problems to be solved by the invention]
By the way, the structure of the portion connecting the rotating shaft 3A of the lock member 3 and the shaft portion 2A of the rotary lock 2 to the connecting member 5 has a structure in which a projection having an irregular cross section such as an oval shape is fitted into a recess having the same shape. However, for example, when the rotary lock 2 is forcibly operated in a state where the door 1 is not closed properly and the axes of the two shafts 2A and 3A do not coincide with each other, the connecting member 5 is made of synthetic resin. However, there is a problem that the hole is cut off and the function as the connecting member 5 cannot be performed, that is, locking and unlocking cannot be performed.
[0005]
In the conventional device, the rotary lock 2, the connecting member 5, the lock member 3 and the like attached to the door 1 are all prepared separately. Will be complicated, so it will be assembled at a momentum factory. Then, the door 1 has a form in which the lock member 3 protrudes greatly from the rear surface. For example, when the door 1 is packed and transported while being stacked on another panel of the main body, the door 1 interferes with the other panel. There is also a problem that extra cost is required, such as a need to prepare a large cushioning material to escape.
The present invention has been completed based on the above circumstances.
[0006]
[Means for Solving the Problems]
The locking device for a cooling storage according to the invention of claim 1, wherein a door is provided at an entrance and exit of the storage main body so as to be openable and closable, and a rotary lock is provided on a surface side of a peripheral portion of the door, and on a back side, A lock member having a locked portion oriented in a direction orthogonal to the shaft of the rotary lock is provided, and the lock member is connected to the shaft of the rotary lock via a connecting member made of synthetic resin, and When the lock is turned to the closed position, the lock member takes one turning posture and is locked in the door-closed state by being locked by a locking portion provided on the peripheral surface of the entrance, and is opened. When the lock member is rotated to the position, the lock member takes another rotation posture, and the lock with the lock portion is released, so that the door can be opened. The connecting portion of the lock with the shaft portion and the connecting portion of the lock member are made of a metal material. Characterized in place where the structure is formed in a form separated from one another.
[0007]
The locking device for a cooling storage according to the invention according to claim 2, wherein a door is provided at an entrance and exit of the storage main body so as to be openable and closable, and a rotary lock is provided on a front surface side of a peripheral portion of the door, and on a back surface side, A lock member having a locked portion oriented in a direction orthogonal to the shaft of the rotary lock is provided, and the lock member is connected to the shaft of the rotary lock via a connecting member made of synthetic resin, and When the lock is turned to the closed position, the lock member takes one turning posture and is locked in the door-closed state by being locked by a locking portion provided on the peripheral surface of the entrance, and is opened. When the lock member is rotated to the position, the lock member takes another rotation posture and the lock with the lock portion is released, so that the door can be opened. The lock member is rotatably supported on the inner surface of the support plate to be attached. The connecting member is disposed on the opposite side, and the connecting member is provided with a connecting portion made of a metal material, and is configured to be integrally rotatable with the lock member via the connecting portion. It has features.
According to a third aspect of the present invention, in the first or second aspect, the connecting portion is detachable from the connecting member.
[0008]
Function and effect of the present invention
<Invention of claim 1>
Since the connecting portion between the rotary lock and the lock member in the connecting member is made of metal, there is no possibility that the connecting member is reinforced and deformed, and the locking / unlocking operation can be performed accurately for a long time. Of course, since the other part of the connecting member is made of synthetic resin and both connecting parts are separated, it is ensured that heat transfer between the inside and outside of the refrigerator is blocked.
<Invention of Claim 2>
Since the lock member and the connecting member can be assembled to the support plate in advance and can be assembled, the alignment and the like can be minimized, and the assembly can be easily performed at the installation site. Therefore, the cushioning material used when assembling them to the door at the factory and transporting them can be eliminated, and the cost can be reduced. In addition, since the lock member and the connecting member are connected via the metal connecting portion, reinforcement is also achieved.
<Invention of Claim 3>
When the shape or size of the connection partner is changed, it can be dealt with simply by replacing the connecting portion. Also, it is convenient when decomposing into a synthetic resin material and a metal material for recycling or the like.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, a prefabricated refrigerator is illustrated.
In FIG. 1, reference numeral 10 denotes a main body of the prefabricated refrigerator, which is formed in a box shape with a front opening by assembling a plurality of heat insulating panels, and the front opening serves as an entrance 11.
[0010]
A pair of left and right heat-insulating doors 12A and 12B are attached to the entrance 11 in a so-called double door type. Specifically, the left door 12A is swingably supported on the left edge of the entrance 11 and the right door 12B is swingably supported on the right edge of the entrance 11 via hinges. The pillar 14 is attached to the open end of the left door 12A in a state of being retracted inward, and when the left and right doors 12A and 12B are closed, the open end of the right door 12B hits the pillar 14 and is closed. .
A handle 16 is provided on the open end side of the front surface of both doors 12A and 12B, and a packing 17 having a magnet 18 embedded therein is attached to the periphery of the back surface as shown in FIG. In addition, it is configured to be in close contact with the front edge of the entrance 11 and the pillar 14.
[0011]
Subsequently, a locking device for the doors 12A and 12B will be described.
In general, a position close to the open end of the upper edge of the right door 12B is provided with a rotary lock 30 and a lock member 37 which is rotated by the rotary lock 30, and a corresponding position of the entrance 11 of the refrigerator body 10. , A catch 65 which is engaged with and disengaged from the lock member 37 is attached.
As shown in FIG. 3, a through hole 20 that penetrates the front and back of the door 12 </ b> B is formed in the right door 12 </ b> B at a position where the rotary lock 30 and the like are attached. At the end on the back side of the through hole 20, a reinforcing plate 22 is stretched inside the inner box 21, and a hole 23 matching the through hole 20 is formed in the reinforcing plate 22. At the end on the side, a reinforcing plate 26 is similarly stretched inside the outer box 25, but a horizontally long oblong mounting hole 27 is formed in each of them.
[0012]
A rotary lock 30 is attached to the surface of the through hole 20. This rotary tablet 30 is provided with a head portion 32 serving as a key insertion portion on the outer end side of a main body portion 31 having a horizontally long oval cross section, and a small oval cross section which is rotated to the other end side. The shaft 33 is vertically oriented by inserting a key (not shown) into the keyhole of the head 32 and rotating it clockwise 90 degrees as viewed from the front. By rotating the key 90 degrees counterclockwise in this state, the shaft 33 returns to the original lateral orientation.
A male screw 34 is cut on the outer periphery of the main body 31 of the rotary lock 30. The rotating tablet 30 is inserted into the mounting hole 27 from the front surface side of the rotating tablet 30 and screwed into the main body portion 31 with the nut 35 inserted into the through hole 20 from the rear surface side, so that the rotating tablet 30 is fixed. It is fixed in a detented state in a posture.
[0013]
A lock member 37 is disposed on the back surface side of the through hole 20. The lock member 37 includes a metal pin 38 and a synthetic resin rotating body 39 to which the pin 38 is attached. The rotating body 39 is formed in a flat rectangular rod shape, and a mounting hole 40 for a pin 38 is formed at the distal end thereof through the upper and lower surfaces, and a rotating shaft portion 42 is provided at the base end via a flange 41. Is formed.
The lock member 37 is rotatably supported by a metal support plate 45 attached to the inner box 21, and the rotation shaft 42 of the rotating body 39 is fitted to the support plate 45. A bearing hole 46 is formed, and an insertion hole 47 for an elongated screw 48 is formed on both sides thereof.
[0014]
The lock member 37 is connected to the rotary lock 30 via a connecting member 50 so as to be integrally rotatable.
The connecting member 50 is made of a synthetic resin, and is formed as a column having a diameter larger than that of the bearing hole 46 of the support plate 45 as a whole. The outer peripheral surface is appropriately lightened. A first connecting plate 51 made of metal, which functions to connect to the lock member 37 side, protrudes from one end surface of the connecting member 50.
[0015]
As shown in FIG. 7, the first connecting plate 51 has an elongated shape having a widened portion 52 on the base end side. The widened portion 52 is buried by insert molding, and the distal end side is provided so as to protrude in the axial direction. Have been. The width of the widened portion 52 is larger than the diameter of the bearing hole 46, and the widened portion 52 is provided with a through hole 53 for allowing a synthetic resin material to enter.
A mounting hole 54 for the pin 38 is opened on the distal end side of the first connecting plate 51. On the other hand, the first connecting plate 51 protruding from the connecting member 50 is provided on the rotating body 39 of the lock member 37 from the end face on the base end side to a position slightly before the front end face beyond the formation position of the mounting hole 54. An insertion groove 43 that can be inserted tightly is formed. When the first connecting plate 51 is properly inserted into the insertion groove 43, the mounting holes 40 and 54 of the pin 38 are aligned with each other.
[0016]
On the other end surface of the connecting member 50, a second connecting plate 56 made of metal, which functions to connect to the rotary lock 30 side, is mounted. The second connecting plate 56 has a rectangular shape, and at the center thereof, an insertion hole 57 having an oval cross section through which the shaft portion 33 of the rotary lock 30 can be tightly inserted is opened.
On the other hand, as shown in FIG. 4, a generally rectangular mounting recess 59 is formed on the other end surface of the connecting member 50 so that the second connecting plate 56 can be prevented from rotating and fitted. The portions along the two opposing sides of the mounting recess 59 are surfaces that are one step lower, and the locking claw pieces 60 that elastically lock and press the opposing two side edges of the second connecting plate 56 from each surface. Is formed. At the center of the mounting recess 59, a center hole 61 having an oval cross section that is aligned with the insertion hole 57 of the second connecting plate 56 is formed.
[0017]
The lock member 37, the support plate 45, and the connecting member 50 are assembled in advance and assembled.
As an example of the assembling, the second connecting plate 56 is fitted into the mounting recess 59 of the connecting member 50 and attached. On the other hand, after the rotating shaft 42 of the rotating body 39 is fitted into the bearing hole 46 of the support plate 45 from one side, the first connecting plate 51 of the connecting member 50 is inserted into the insertion groove 43 of the rotating body 39 from the opposite side. At this time, since the two mounting holes 40 and 54 are aligned, the pin 38 is inserted into the two mounting holes 40 and 54, and the E-rings 44 are fitted into the locking grooves 38A formed in the pins 38, respectively. Both ends are mounted in a state where they project substantially the same size from the rotating body 39.
[0018]
Thereby, as shown in FIG. 5, an assembly 63 is formed in which the lock member 37 is rotatably supported by the support plate 45 and is assembled in a state where the lock member 37 is connected to the connection member 50.
As will be described later, when the connecting member 50 is connected to the rotary lock 30, the rotating body 39 of the lock member 37 rotates around the axis integrally with the shaft 33 of the rotary lock 30, and the key is attached to the rotary lock 30. Is inserted and turned to the closed position, the pin 38 assumes a lying posture (FIG. 7), and returns to the original open position, the pin 38 assumes a vertical posture (FIG. 6). ing.
[0019]
On the other hand, the catch 65 is attached to a position corresponding to the entrance 11 of the refrigerator body 10 as described above.
As shown in FIG. 2, the catch 65 is formed in an angle shape as a whole, and has a horizontal surface serving as a mounting plate 66. 67. The escape groove 68 has a width and a height that allow the distal end portion of the rotating body 39 and the vertical pin 38 to be inserted.
[0020]
The mounting plate 66 of the catch 65 is formed with an insertion hole 69 for a pair of left and right screws 70. On the other hand, at the mounting position on the upper peripheral surface of the entrance 11, as shown in FIG. 6, a reinforcing plate 71 is disposed inside the inner box 21, and an insertion hole 72 for a screw 70 is provided in the inner box 21. 71 is provided with a screw hole 73.
As shown in FIG. 2, the catch 65 is applied to the mounting surface of the entrance 11 with the locking plate 67 facing forward, and the mounting plate 66 and the insertion holes 69 and 72 of the inner box 21 are aligned with each other. A screw 70 with a knob 70A is inserted into both the insertion holes 69 and 72, and the catch 65 is fixed by screwing and screwing into the screw hole 73.
When the catch 65 is fixed, when the right door 12B is closed, the tip of the rotating body 39 of the lock member 37 and the vertical pin 38 enter the back side through the escape groove 68 (see FIG. 6). When the pin 38 lies sideways with the rotation of the rotating body 39, both protruding portions are locked by the left and right locking plates 67.
When the screw 70 with the knob 70A is loosened and removed, the catch 65 can be removed from the mounting surface of the entrance 11.
[0021]
Subsequently, the operation of the present embodiment will be described.
The locking device is assembled together with the main body 10 at the installation site of the refrigerator, and the rotary lock 30, the assembly 63 such as the lock member 37, the catch 65, and the like are carried in together with the heat insulating panels and the doors 12A and 12B as components.
As a procedure for assembling, first, the main body 31 of the rotary lock 30 is inserted into the mounting hole 27 on the front surface of the door 12B, and the nut 35 inserted into the through hole 20 from the rear surface side is tightened and fixed. Next, the assembly 63 is prepared, and the connecting member 50 is inserted into the through hole 20 from the back surface side with the pin 38 in the vertical position. When the support plate 45 is inserted until it hits the inner box 21, as shown in FIG. 6, the shaft 33 of the rotary lock 30 is moved from the insertion hole 57 of the second connection plate 56 attached to the connection member 50 to the center hole 61. The shaft portion 33 of the rotary lock 30 and the connecting member 50 are connected so as to be integrally rotatable around the axis. The support plate 45 is fixed to the inner box 21 by screwing a screw 48 passed through the insertion hole 47 into a screw hole 75 formed on the back surface of the door 12B.
The catch 65 is attached to a predetermined attachment surface of the entrance 11 in the manner described above.
[0022]
At the time of using the refrigerator, when the work in the refrigerator is finished and the door is closed, first, when the left door 12A is closed, the packing 17 with the magnet 18 on the back surface is magnetically attracted to the left half edge of the entrance 11 by the magnetic force. Closely closed. Subsequently, the right door 12B is closed. At this time, as shown in FIG. 2, since the pin 38 of the lock member 37 is in the vertical position, the pin 38 is moved from the tip of the rotating body 39 as shown in FIG. Then, the gasket enters the back side of the locking plate 67 through the escape groove 68 of the catch 65, and at the same time, the packing 17 with the magnet 18 on the back surface comes into close contact with the right edge of the entrance 11 and the pillar 14 by magnetic attraction. Closed. With only this, both doors 12A and 12B are held in the closed state by the magnetic attraction described above.
[0023]
In order to further lock, when the key is inserted into the rotary lock 30 from the state of FIG. 6 and turned 90 degrees clockwise as viewed from the front toward the closed position, the rotary body 39 is connected via the connecting member 50. The pin 38 is rotated in the same direction by the same angle, and the pin 38 is in the horizontal position, as shown by the solid line in FIG. Thereby, the right door 12B is locked in the closed state, and the left door 12A is also locked in the closed state by the pillar 14 provided integrally being pressed by the right door 12B.
In the case of unlocking, when the key is inserted again and rotated 90 degrees in the opposite direction toward the original open position, the rotating body 39 rotates by the same angle in the same direction, and the pin 38 is rotated as shown in FIG. Wake up vertically. Therefore, when the right door 12B is pulled toward the user, the pin 38 is opened while passing through the escape groove 68 toward the front, and there is no pressing on the pillar 14, whereby the left door 12A can be opened.
[0024]
It is to be noted that there is a possibility that another person accidentally closes and locks the door while entering the inside of the refrigerator and performing work or the like, that is, being locked in the refrigerator. In that case, the screw 70 with the knob 70A to which the catch 65 is attached is loosened and removed, and the catch 65 is removed toward the inside of the refrigerator while passing the rotating body 39 through the escape groove 68. Then, although locked, the lock on the pin 38 is released, and the door can be opened by subsequently pushing the right door 12B toward the outside of the refrigerator.
[0025]
As described above, in the locking device of the present embodiment, the connecting members 50 are provided with the metal connecting plates 54 and 56, and these are connected to the lock member 37 (pin 38) and the rotary lock 30. Therefore, there is no possibility that the connecting portion is reinforced and deformed, and the locking / unlocking operation can be accurately performed over a long period of time. Of course, the other portion of the connecting member 50 is made of synthetic resin and the two connecting plates 54 and 56 are separately disposed, so that the function of blocking heat transfer between the inside and outside of the refrigerator can be achieved.
The lock member 37 can be assembled together with the connecting member 50 to the support plate 45 in advance and can be assembled, so that the alignment and the like can be minimized, and the lock member 37 can be easily assembled even at the installation site. Therefore, the cushioning material used when assembling them to the door 12B at the factory and transporting them can be eliminated, and the cost can be reduced.
[0026]
Since the second connecting plate 56 used to connect the rotary lock 30 is detachable as a separate component, for example, when the size or shape of the shaft portion 33 of the rotary lock 30 is changed, it is particularly small. In the case of a change, it can be easily handled simply by replacing the second connection plate 56 with the insertion hole 57 having a shape corresponding to the shaft portion 33 after the change. In the case of a large change, it is necessary to change the shape of the center hole 61 of the mounting recess 59.
In a portion where the lock member 37 is rotatably supported by the support plate 45, the rotating shaft portion 42 of the synthetic resin rotating body 39 is fitted into the bearing hole 46 of the support plate 45, so that frictional resistance is reduced. As a result, smooth rotation can be expected.
In addition, when the first connecting plate 51 is provided to the connecting member 50 by insert molding, the widened portion 52 is provided at the base end and buried therein, so that, for example, a tensile force is applied to the first connecting plate 51 from the pin 38 side. Also acts, the widened portion 52 is caught and is prevented from easily falling off.
[0027]
<Second embodiment>
8 and 9 show a second embodiment of the present invention. In the second embodiment, the structure of the connecting member 50A is changed, and a first connecting plate 51A used for connecting to the lock member 37 and a second connecting plate 56 used for connecting to the rotary lock 30 are provided. , Are both provided as separate components and are detachable from the connecting member 50A.
The first connecting plate 51A has the same shape as the first connecting plate 51 of the first embodiment except that the through-hole 53 is not formed, and the second connecting plate 56 has the same shape as that of the first embodiment. They have the same shape. Other portions having the same functions as those of the first embodiment will be described with the same reference numerals as appropriate.
[0028]
At one end surface of the connecting member 50A, a mounting recess 80 is formed in the shape of a groove in which two opposing side edges of the rectangular second connecting plate 56 fit tightly. A locking claw piece 60 is formed on another pair of opposite side edges of the second connecting plate 56 for elastically locking and pressing. A circular center hole 81 is formed in the center of the mounting recess 80 so as to fit the distal end side of the shaft portion 33 of the rotary lock 30 and escape therefrom.
In the mounting recess 80, an insertion groove 82 for inserting the first connecting plate 51A is formed so as to penetrate the opposite end surface. Specifically, the insertion groove 82 has the same width as the widened portion 52 of the first connecting plate 51A, and is formed so as to overlap with the center hole 81 between the both locking claw pieces 60. Shortly before reaching the end face, it is narrowed to the same width dimension as the tip side of the first connecting plate 51A and is opened to the end face.
As shown in FIG. 9, a pair of left and right rattle projections 84 are formed on one surface (for example, the lower surface) of the insertion groove 82 at a position before the stepped portion 83. This rattling ridge 84 has an upward slope from the near side.
[0029]
In assembling, first, the first connecting plate 51A is inserted into the insertion groove 82 from the distal end side, and is pushed in while crushing the stuffing ridge 84 at the end stage, and is pushed in when the widened portion 52 hits the stepped portion 83. It is stopped and fixed without rattling with the tip protruding a predetermined length from the opposite end face. Next, the second connecting plate 56 is fitted into the mounting concave portion 80, and the opposing two side edges are pressed by the locking claw pieces 60, so that the second connecting plate 56 is prevented from rotating and attached.
As a result, the connecting member 50A has a first connecting plate 51A made of metal that functions to connect to the lock member 37 side from one end surface thereof, and a metal that functions to connect to the rotary lock 30 side at the other end surface. A second connecting plate 56 made of a metal is attached, and can be used in the same manner as the connecting member 50 of the first embodiment, and the same effect can be obtained.
[0030]
On the other hand, in the connecting member 50A of the second embodiment, the second connecting plate 56 is removed from the mounting concave portion 80 by, for example, squeezing with a jig while spreading the locking claw pieces 60, and thereafter, strongly hitting from the protruding end side or the like. Thereby, the first connecting plate 51A can be removed from the insertion groove 82.
That is, since the two connecting plates 51 and 56 can be relatively easily detached from the connecting member 50A as needed, it is convenient when recycling and the like to separate and collect the synthetic resin material and the metal material.
[0031]
Moreover, compared with the connecting member 50 of the first embodiment, the die cost can be reduced by not performing the insert molding. Further, the first connecting plate 51A which is attached by press-fitting can be firmly attached by a simple structure in which the insertion groove 82 is provided with a backlash ridge 84, and the backlash ridge 84 is provided in the insertion region. Since it is arranged only at the end of the step, the resistance at the time of insertion can be minimized and the insertion operation can be performed efficiently.
[0032]
<Third embodiment>
Next, a third embodiment of the present invention will be described with reference to FIGS.
In the third embodiment, the catch 85 and its mounting structure are modified. In particular, the catch 85 is released to release the lock with the lock member 37 when the lock is erroneously locked and locked in the storage. It is intended that the operation of removing the 85 can be performed more easily.
Note that the rotary lock 30, the lock member 37, and the like provided on the door 12B side are the same as those in the first embodiment, and the portions having the same functions are denoted by the same reference numerals, and redundant description will be omitted.
[0033]
The catch 85 of the present embodiment is formed by bending a metal round bar, and includes a rectangular main body frame 86 that is disposed in an oblique posture during mounting, which will be described later. Thus, the locking frame 87 having a gate shape is formed by rising vertically. The outer peripheral surface is coated with a resin such as polyethylene.
On the other hand, two fixtures are prepared. The first mounting member 89 on the back side is made of synthetic resin, and a pair of mounting grooves 91 is formed at both ends of the lower surface of the elongated mounting plate 90. The mounting grooves 91 have an arcuate cross section with the lower surface open. Both ends of the upper side 86A of the main body frame 86 of the catch 85 can be elastically fitted. Both end edges of the mounting groove 91 are extended outward for guiding.
The second attachment 93 on the front side is for attaching the locking frame 87, is made of a metal plate such as a stainless steel plate, has a cross section formed in a crank shape, and the upper plate 94 is an attachment plate. . The tip of the lower plate 95 is bent obliquely downward for guiding.
[0034]
The catch 85 is attached as follows. At the mounting position on the upper peripheral surface of the entrance 11, both mounting tools 89 and 93 are divided into a rear side and a front side, and mounted by screws. In the catch 85, first, the upper side 87A of the locking frame 87 is inserted between the lower plate 95 of the second fixture 93 and the upper surface wall of the entrance / exit 11, and then both ends of the upper side 86A of the main body frame 86 The two fitting grooves 91 of the one fitting 89 are fitted from below. As a result, the catch 85 takes a posture in which the locking frame 87 rises vertically, and is particularly immovably attached to the outside of the storage.
[0035]
At the time of use, when the right door 12B is closed, the upper end mainly of the tip of the rotating body 39 of the lock member 37 and the vertical pin 38 passes between the left and right sides 87B of the locking frame 87 and the back side thereof. To enter.
In the case of locking, when the rotary lock 30 is rotated to the closed position and the pin 38 is turned to the horizontal position, the both protruding portions are locked to the left and right sides 87B of the locking frame 87 and locked in the closed state. . In the case of unlocking, when the rotary lock 30 is rotated to the original open position, the pin 38 is raised in the vertical direction, and the pin 38 is opened while slipping forward between the left and right sides 87B of the locking frame 87. It is door.
[0036]
On the other hand, if the lock is inadvertently locked and locked in the refrigerator, the upper side 86A of the main body frame 86 of the catch 85 is pulled down while elastically expanding the mounting groove 91 of the first mounting member 89, and subsequently, is locked. When the upper side 87A of the frame 87 is pulled out from the second fixture 93 to the inside of the refrigerator and the upper side 87A of the locking frame 87 is tilted so as to fall down inside the refrigerator, the locking frame 87 comes out above the rotating body 39 and the pin 38. Therefore, it can be removed by pulling it toward the inside of the storage as it is. Then, although locked, the lock on the pin 38 is released, so that the door can be opened by subsequently pushing the right door 12B toward the outside of the refrigerator.
[0037]
That is, in the present embodiment, in the structure of the portion where the catch 85 is attached by the attachments 89 and 93, the movement to the outside of the compartment is restricted, while the inside of the compartment is locked with the lock member 37 (pin 38) in the locked position. Since it can be attached and detached while avoiding interference, the locking function during normal operation is securely ensured, and in the event of an emergency trapped in the refrigerator, the catch 85 is removed to release the lock with the lock member 37. By doing so, it is possible to escape easily.
In the case of loosening the screw 70 and removing the catch 65 as in the first embodiment, when the screw 70 is strongly tightened or rusted, it takes time to remove the screw 70 and eventually remove the catch 65. However, in this embodiment, basically, the catch 85 can be removed simply by pulling the catch 85 downward with a predetermined force or more, so that the emergency escape can be easily performed in a short time.
[0038]
Since the catch 85 itself is formed by bending a metal round bar, the weight can be reduced. Further, when the catch 85 is detached, the catch 85 is directly held by hand and pulled, so that there is no possibility that the catch 85 is accidentally dropped.
Since the catch 85 is coated with a resin, it is possible to prevent the catch 85 from becoming detached due to rust. Furthermore, since the catch 85 is formed of a round bar, the roundness serves as a guide when the pin 38 of the lock member 37 rotates, so that the locking / unlocking operation can be performed more smoothly. .
When the handle 97 is provided in a hanging manner on the upper side 86A of the main body frame 86 as in a catch 85A shown in FIG. 12, the work of pulling the catch 85 downward and detaching it from the first fixture 89 can be performed more easily. Can be.
[0039]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and furthermore, besides the following, within the scope not departing from the gist. Can be implemented with various modifications.
(1) In the first embodiment, the second connecting plate connected to the rotary tablet side may also be provided integrally with the connecting member by insert molding.
(2) The present invention can be widely applied to all cooling storages provided with other door opening / closing methods such as one-sided opening.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a prefabricated refrigerator according to a first embodiment of the present invention.
FIG. 2 is a partial perspective view thereof.
FIG. 3 is an exploded perspective view of the locking device.
FIG. 4 is a partial perspective view of a connecting member.
FIG. 5 is a perspective view of the assembly.
FIG. 6 is a side sectional view of the door after it is closed and before locking.
FIG. 7 is a side sectional view after locking.
FIG. 8 is an exploded perspective view of a connecting member according to a second embodiment.
FIG. 9 is a partially cutaway perspective view thereof.
FIG. 10 is a side sectional view after locking according to a third embodiment.
FIG. 11 is a perspective view of a catch and a fixture thereof.
FIG. 12 is a perspective view of a catch according to a modification.
FIG. 13 is a side sectional view of a conventional example when locking.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Refrigerator body 11 ... Doorway 12A, 12B ... Door 30 ... Rotating lock 33 ... Shaft part 37 ... Lock member 38 ... Pin (locked part) 39 ... Rotating body 40 ... Mounting hole 45 ... Support plate 50, 50A ... Connection Members 51, 51A: first connection plate (connection portion) 54: mounting hole 56: second connection plate (connection portion) 57: insertion hole 63: assembly 65: catch 67: locking plate (locking portion)

Claims (3)

A door is provided at the entrance of the storage body so that it can be opened and closed,
A rotary lock is provided on the front surface side of the peripheral portion of the door, and a lock member having a locked portion oriented in a direction orthogonal to the shaft portion of the rotary lock is provided on the rear surface side, and this lock is provided. When the member is connected to the shaft portion of the rotary lock via a connecting member made of synthetic resin, and the rotary lock is rotated to the closed position, the lock member takes one rotation posture, and When the lock member is locked in the closed state by being locked to the locking portion provided on the peripheral surface of the lock member and is rotated to the open position, the locking member takes another rotation posture and the lock member takes a position with the locking portion. When the door is opened by releasing the lock,
A locking device for a cooling storage, wherein a connecting portion of the connecting member to the shaft of the rotary lock and a connecting portion to the lock member are formed separately from each other by a metal material. A door is provided at the entrance of the storage body so that it can be opened and closed,
A rotary lock is provided on the front surface side of the peripheral portion of the door, and a lock member having a locked portion oriented in a direction orthogonal to the shaft portion of the rotary lock is provided on the rear surface side, and this lock is provided. When the member is connected to the shaft portion of the rotary lock via a connecting member made of synthetic resin, and the rotary lock is rotated to the closed position, the lock member takes one rotation posture, and When the lock member is locked in the closed state by being locked to the locking portion provided on the peripheral surface of the lock member and is rotated to the open position, the locking member takes another rotation posture and the lock member takes a position with the locking portion. When the door is opened by releasing the lock,
The lock member is rotatably supported on the inner surface of the support plate attached to the back surface of the door, and the connecting member is disposed on the opposite side, and the connecting member is made of a metal material. A locking device for a cooling storage, characterized in that a connecting portion comprising: The locking device for a cooling storage according to claim 1 or 2, wherein the connecting portion is detachable from the connecting member.

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