JP4165801B2 - Box lock structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a box locking structure that can be automatically locked when a box body is covered with a door.
[0002]
[Prior art]
As shown in FIGS. 16 and 17, the conventional box locking structure is provided with a receiving metal fitting 102 on the box body 101 side, and a hook metal fitting 106 linked to a lever portion 105 pivotally supported by a shaft 104 on a door 103. Usually, a spring not shown in the figure is urged toward the box body 101 and engaged with the receiving metal fitting 102.
[0003]
[Problems to be solved by the invention]
However, in this conventional apparatus, when the door is closed, the door 103 can be automatically locked only by pushing the door 103 without operating the lever portion 105. The unlocking is shown in FIG. In this way, the lever part 105 is lifted outward with the finger 104 as a fulcrum with fingers, and the hook metal fitting 106 is released from the metal fitting 102. For this reason, the shaft 104 for pivotally supporting the lever portion 105 has to be provided outside the door 103, and there is a problem that the protrusion of the door side wall becomes large and the appearance is impaired.
[0004]
[Means for Solving the Problems]
The box locking structure of the present invention, which has been made to solve the above problems, is provided with a receiving metal that is biased toward the outside of the box body outside the opening of the box body, A hook fitting that engages the receiving bracket is provided on the door end surface that covers the opening, and an engagement releasing means that presses the receiving bracket from the outside to release the engagement with the hook fitting is provided on the door end surface. The present invention is characterized in that the invention according to claim 1 is used, and in this invention, the disengaging means is a rotary handle type, and the invention according to claim 2 is provided. The bracket is pivotally attached to the upper end of the mounting plate that attaches to the box body, and is biased outwardly under the restriction of the stopper by a spring and faces diagonally downward, and is provided on the end face of the door. Hook gold 4. The method according to claim 3, further comprising: a pressing piece projecting on the back surface of the handle portion pivotally attached to the pin on the end side of the hook metal fitting as the engagement release means. It shall be the invention.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment of the present invention will be shown.
[First Embodiment]
First, a first embodiment corresponding to the invention described in claims 1, 2, and 3 shown in FIGS. Reference numeral 1 denotes a box body, and 2 denotes a door that covers the opening 1 a of the box body 1. Reference numeral 3 denotes a recess formed on the outside of the opening 1a of the box body 1, that is, a receiving metal urged toward the outside provided on the draining frame 1b formed on the opening 1a. As shown in FIG. 5, the metal fitting 3 has an upper end pivotally attached to the upper end of the mounting plate portion 31 attached to the box body 1 and is biased outward by the spring 33 under the restriction of the stopper portion 34 so as to face obliquely downward. It is supposed to be. That is, the support shaft portion 31b is supported on the shaft tube portions 31a and 31a formed on both sides of the upper end of the mounting plate portion 31, and the shaft tube portion 3a formed on the upper end of the support fitting 3 is supported on the support shaft portion 31b. In addition to pivoting, the stopper 3 is urged by a spring 33 and a stopper 34 formed by contacting the shaft tube portion 31a of the mounting plate 31 and the notch end surface formed in the shaft tube portion 3a of the bracket 3 is provided. It is assumed that the upper end shaft portion is regulated and faces obliquely outward and downward.
[0006]
Reference numeral 4 denotes a hook fitting that engages with the receiving fitting 3 and is provided on an end surface of the door 2. As shown in FIG. 1, the hook metal fitting 4 holds the metal fitting 3 against the spring 33 against the spring 33 when the door 2 is closed, and the tip of the hook metal fitting 4 reaches below the metal fitting 3. Then, the pressure on the metal fitting 3 is released, and the metal fitting 3 is restored to the old shape by the spring 33, and is engaged with the hook metal fitting 4 and locked as shown in FIG. Reference numeral 5 denotes a pulling and rotating handle type handle device as an engagement release means for releasing the engagement with the hook metal fitting 4 by pressing the receiving metal fitting 3 from the outside. The handle device 5 is on the end side of the hook metal fitting 4. Further, a pressing piece 53 is projected from the back surface of the handle 51 that is pivotally attached to the pin 51a, that is, the folded plate 52, and the holding piece 51 is rotated by turning the handle 51 upward with the pin 51a as a fulcrum. 53 is rotated downward to press the receiving metal 3 against the spring 33 inward to release the engagement of the receiving metal 3 with the hook metal 4 and open the door 2. Accordingly, the unlocking is performed by the disengagement means for releasing the engagement with the hook metal fitting 4 by pressing the receiving metal fitting 3 biased toward the outside of the box body 1 from the outside. Since the protrusion of 2 to the outer surface can be suppressed, it is excellent in aesthetics. In the above, the front end of the hook metal fitting 4 is inclined inward, but a hole may be provided so that the receiving metal fitting 3 is engaged with the edge of the hole. You may make it be a shaft part.
[0007]
Further, in the first embodiment, as shown in FIGS. 6 to 10, a lock piece 61 for locking the handle portion and a padlock mounting hole 62 are provided on the side opposite to the pin 5 a of the hook metal fitting 4. The key metal 6 can be pivotally supported and provided on the back surface of the handle portion 51. Accordingly, as shown in FIG. 7, the key piece 6 is in a free state, that is, the lock piece portion 61 formed on the key piece 6 is provided on the handle portion 51 and is not engaged with the lock receiving portion 54. The door 2 can be opened by operating the handle portion 51 to release the engagement of the receiving fitting 3 to the hook fitting 4 in a state where the 62 is not projected from the slit formed on the upper end surface provided on the handle portion 51. is there.
[0008]
If the key 65 is inserted into the key hole 64 of the key metal 6 via the key insertion hole 51b of the handle 51 and the key metal 6 is rotated counterclockwise, the lock piece portion of the key metal 6 is obtained. 61 is engaged with the lock receiving part 54 of the handle part 51 so that the handle part 51 is locked and the door can be opened to prevent mischief. Further, if the lock 6 is rotated clockwise, the padlock mounting hole 62 protrudes from the slit formed in the upper end surface of the handle portion 51, so that the padlock can be attached and locked. In this case, if the padlock is removed, the handle portion 51 can be operated so that the padlock mounting hole 62 can be always exposed. If the door 2 is open, the padlock mounting hole 62 protrudes when the mounting plate 66 is manually rotated. 10, screws 43 and 43 are attached toward the front side, and the hook device 4 is attached to the side surface of the door 2 with the screws 43 and 43 to attach the handle device 5. Yes. In such an embodiment, the frame, lock, and padlock attachment state can be selected in the above-described direction.
[0009]
[Second Embodiment]
Next, a second embodiment corresponding to the invention described in claims 1, 4 and 5 shown in FIGS. Reference numeral 1 denotes a box body, and 2 denotes a door that covers the opening 1 a of the box body 1. Reference numeral 3 denotes a recess formed on the outside of the opening 1a of the box body 1, that is, a receiving metal urged toward the outside provided on the draining frame 1b formed on the opening 1a. The receiving bracket 3 is pivotally attached to the lower end of the mounting plate 31 attached to the box body 1 and is biased outward by a spring 33 and is regulated by a stopper portion 34 formed at the lower end of the receiving bracket 3 so as to be obliquely upward. A hook metal fitting 4 described later can be engaged with an outward hook 32 formed on the upper end as a lower end shaft portion facing the front end.
[0010]
Reference numeral 4 denotes a press-type hook fitting that engages with the receiving fitting 3 provided on the end face of the door 2, and the hook fitting 4 includes mounting fixing frame portions 71 and 71 that fit on both sides of the notch portion of the end face of the door 2. A shaft portion 7a provided at the upper end of a gate-shaped mounting frame 7 consisting of an inner flange portion 72 connecting the upper ends thereof is pivotally supported on both sides of the shaft portion 7a and engaged with the hook portion 32 of the receiving bracket 3 at the intermediate upper end. A joint portion 4a is formed. A pressing surface portion 4b for pressing the front end surface of the hooking portion 32 of the receiving metal fitting in the inner direction of the box 1 is formed below the hook metal fitting 4. The stopper pieces 41, 41 provided on both sides are always urged outward by a spring 42 while being regulated by contacting the back surface of the mounting fixing frame portion 71. As a result, when the pressing surface portion 4b of the hook metal fitting 4 closes the door 2, the hook metal fitting 4 is pressed inwardly against the spring 33, and the engaging portion 4a of the hook metal fitting 4 reaches the hooking portion 32. The pressure applied to the metal fitting 3 is released, and the metal fitting 3 is engaged and locked by the hook metal 4 that has been restored to its old shape by a spring 33.
[0011]
In the second embodiment, the engagement releasing means for pressing the receiving metal 32 from the outside to release the engagement with the hook metal 4 has the pressing surface portions 4b which are the back portions on both sides of the hook metal 4 and the receiving metal 32. By pressing the receiving plate pieces 32d that are stretched forward on both sides or one side, the receiving bracket 32 is pressed from the outside, and the engagement with the hook fitting 4 is released. Accordingly, the unlocking is performed by the disengagement means for releasing the engagement with the hook metal fitting 4 by pressing the receiving metal fitting 3 biased toward the outside of the box body 1 from the outside. Since protrusion to the outer surface can be suppressed, it is excellent in aesthetics. In this embodiment, the lower end of the metal fitting 3 is used as the shaft portion. However, the upper end may be used as the shaft portion as in the first embodiment.
[0012]
【The invention's effect】
As described above, the box locking structure of the present invention can be automatically locked simply by pushing the door, and the unlocking is performed by pressing the receiving metal that is biased toward the outside of the box body from the outside. Therefore, the engagement releasing means that releases the engagement with the hook metal fitting can suppress the protrusion of the engagement releasing means to the outer surface of the door. Thus, the present invention solves the problems of the conventional box lock structure, and is a great benefit for the industry.
[Brief description of the drawings]
FIG. 1 is a side view showing a first embodiment of the present invention.
FIG. 2 is a perspective view showing a first embodiment of the present invention.
FIG. 3 is a perspective view showing the first embodiment of the present invention in different aspects.
FIG. 4 is a perspective view showing the first embodiment of the present invention from the back side.
FIG. 5 is an exploded perspective view showing the first embodiment of the present invention.
FIG. 6 is a perspective view showing another example of the first embodiment of the present invention.
FIG. 7 is a cross-sectional view showing another example of the first embodiment of the present invention.
FIG. 8 is a cross-sectional view showing another example of the first embodiment of the present invention in different aspects.
FIG. 9 is a cross-sectional view showing another example of the first embodiment of the present invention in different aspects.
FIG. 10 is a perspective view showing another example of the first embodiment of the present invention from the back side.
FIG. 11 is a side view showing a second embodiment of the present invention.
FIG. 12 is a side view showing the second embodiment of the present invention in different aspects.
FIG. 13 is a perspective view showing a second embodiment of the present invention from the back side.
FIG. 14 is an exploded perspective view showing a second embodiment of the present invention.
FIG. 15 is an exploded perspective view showing a relationship between a receiving metal fitting and a hook metal fitting according to a second embodiment of the present invention.
FIG. 16 is a side view showing a conventional example.
FIG. 17 is a side view showing a conventional example with different modes.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Box main body, 1a opening part, 2 doors, 3 receiving metal fittings, 31 mounting plate part, 32 hanging part, 32d receiving plate piece, 33 spring 34 stopper part 4 hook metal fitting, 4a engaging part, 51 handle part, 51a pin, 53 Presser piece, 7 Mounting frame, 7a Shaft, 71 Mounting frame, 72 Inner collar

Claims (3)

  A receiving metal fitting biased toward the outside of the box main body is provided outside the opening of the box main body, and a hook metal fitting engaged with the receiving metal fitting is provided on the end surface of the door that covers the opening of the box main body. A box locking structure characterized by comprising a disengagement means for releasing the engagement with the hook metal fitting by pressing the receiving metal fitting from the outside on the end face of the door.   The box locking structure according to claim 1, wherein the disengaging means is a rotary handle type.   The bracket is pivotally attached to the upper end of the mounting plate that attaches to the box body, and is biased outwardly under the restriction of the stopper by a spring and faces diagonally downward, and is provided on the end face of the door. 3. A hook piece having an end facing diagonally inward, and further comprising a pressing piece projecting on the back surface of a handle portion pivotally attached to a pin on an end side of the hook fitting as an engagement release means. Lock structure of the box described in 1.

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