JP3474512B2 - Storage - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage provided with a door locking device.

[0002]

2. Description of the Related Art Conventionally, as a door locking device for a refrigerator, one described in Japanese Utility Model Publication No. 4-46037 is known. As shown in FIG. 17, the bearing hole 5 of the locking lever 4 is rotatably fitted to the support shaft 3 provided on the bracket 2 on the front surface of the refrigerator main body 1, and the door 6 is closed. In this state, the locking lever 4 is raised horizontally, the lock plate 7 is applied to a part of the front surface of the door 6 while passing the tip of the locking lever 4 through the insertion groove 7A, and the padlock 9 is locked in the lock hole 8 at the tip of the locking lever 4. It is designed to be locked by passing the arm 9A.

Here, if the locking lever 4 can be held in that position when the locking lever 4 is raised horizontally, subsequent mounting work of the lock plate 7 is easy. Therefore, in the conventional one, while the support shaft 3 has a non-circular cross section such as an oval, the bearing hole 5 of the locking lever 4 has a shape in which the inserting portion 5A is extended from a part of the outer circumference of the locking lever 4 to form the locking lever 4. When it is raised from the drooping posture shown by the chain line to the horizontal posture, it can be held in the horizontal posture by pushing it inward and inserting a part of the support shaft 3 into the insertion portion 5A.

[0004]

However, in the conventional device, the padlock 9 is scratched while the locking lever 4 is pushed in, and even after locking, the support shaft 3 comes out of the insertion portion 5A and locks. There is a room for the lever 4 to move to the front, and there is a problem that rattling occurs in the direction of opening the door 6 by that much. The present invention has been completed based on the above circumstances, and its purpose is to:
The door is locked without rattling.

[0005]

As a means for achieving the above object, the invention of claim 1 is a storage provided with a door that can be opened and closed at the front door of the storage main body. It has a support shaft arranged on the front surface of the main body, a lock hole into which a lock arm of a lock is inserted at the tip and a long hole into which the support shaft can be inserted at the base end, and rotates with respect to the support shaft. Locking lever supported so that it can be pulled out,
A lock plate having an insertion groove through which the front end side of the locking lever can be inserted and covering a part of the front surface of the door;
By inserting the lock plate into a part of the front surface of the door while inserting the tip of the locking lever raised in a substantially horizontal posture into the insertion groove, and then inserting the lock arm of the lock into the lock hole. In the locking device, the lock lever is pulled out to the most front locking position, and the lock hole is set to project in front of the lock plate by a diameter that allows the lock arm of the lock to be inserted. And the lock
The base end of the lever is frictionally engaged with the front surface of the storage body.
The lock lever by turning it almost
The feature is that the engaging portion that can be held in a flat posture is formed to project .

According to a second aspect of the present invention, in the first aspect , the engagement portion is set to be separated from the front surface of the storage main body when the locking lever is pulled out to the locking position. It has a feature in that it exists.

[0007]

<Operation and effect of the invention><Invention of claim 1> After the locking lever is raised almost horizontally, the lock plate is applied to a part of the front surface of the door while inserting the tip of the locking lever into the insertion groove, and then the long hole is formed. Use it to pull the locking lever toward you. Then, the lock hole at the tip of the locking lever projects from the lock plate by a diameter that allows the lock arm of the lock to be inserted,
It can be locked by passing the lock arm through the lock hole. Only when the locking lever is completely pulled out, the lock hole at the tip protrudes in front of the lock plate so that the lock arm can be inserted, and the lock is broken there.Therefore, there is no room for the locking lever to move. The door is prevented from rattling. Well
Also, when you rotate the locking lever to raise it to a horizontal position,
The engaging portion provided on the frictional engagement with the front surface of the storage main body
Holds in a horizontal position. Such as turning the locking lever
It can be held in one operation. Also, frictional engagement
Since it is held by the
If you use it, the holding will come off and you can avoid hitting it strongly.

<Invention of Claim 2 > Since the holding by the frictional engagement is released in the state where the locking lever is pulled out to the locking position, if the lock and the lock plate are removed, the locking lever hangs down by its own weight. It is stored by turning to a posture. It is possible to avoid forgetting to store the locking lever after unlocking.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG.
Or, it demonstrates based on FIG. In this embodiment, a horizontal refrigerator is exemplified, and as shown in FIG. 1, a machine room 11 accommodating a refrigerating device or the like is provided on the side of a refrigerator body 10 formed of a horizontally elongated heat insulating box having a front opening. Legs 12 provided at the four corners of the bottom of the refrigerator body 10
Supported by. In the opening on the front of the refrigerator body 10,
As shown in FIG. 11, by arranging the vertical middle frame 14, two right and left doorways 15 are provided.
A heat insulating door 16 is attached to each of the two doors so that the door 16 can be opened and closed. Each door 16 is provided with a handle 17 at an upper position on the open end side.

A locking device 20 is provided at a position between the doors 16 described above. As shown in FIG. 2, the locking device 20 includes a bracket 21 to which the support shaft 28 is attached, a locking lever 33, a lock plate 40, and a padlock 45. The bracket 21 is formed by bending a supporting plate 23 at a right angle at a central height position of one side edge of a vertically long substrate 22, and a mounting hole 24 of a supporting shaft 28 is opened in the supporting plate 23. Through holes 26 for screws 25 are formed at both upper and lower ends of the substrate 22. The support shaft 28 is a circular shaft, and a small diameter portion 29 that fits into the mounting hole 24 almost tightly, a large diameter portion 30 that is slightly thicker than that, and a head portion 31 that has a larger diameter are formed sequentially from the tip end side. It has a curved shape.

As shown in FIG. 3, the locking lever 33 is formed in an elongated shape as a whole, and a lock hole 34 into which a lock arm 46 of a padlock 45 is inserted is formed on the tip end side thereof. On the other hand, on the base end side of the locking lever 33, one edge side (lower edge side in a horizontal posture) bulges in an arc shape, and the opposite side is cut off obliquely. The portion 35 and the diagonal portion 36 are rounded and connected to each other, and the connected portion serves as the engaging portion 37 according to the present invention. Further, at the base end of the locking lever 33, a long hole 38 is slidably inserted into which the large diameter portion 30 of the support shaft 28 is slidably inserted. The elongated hole 38 is formed in an oblique posture which has an upward slope toward the front (right side in FIG. 3) when the locking lever 33 takes a horizontal posture.

As shown in FIGS. 4 to 6, the base end of the locking lever 33 is placed inside the support plate 23 of the bracket 21 so that the support shaft 28 extends from the elongated hole 38 to the mounting hole 24.
The small diameter portion 29 protruding from the mounting hole 24 is fixed by caulking the tip of the small diameter portion 29. As a result, the large diameter portion 30 of the support shaft 28 is fitted into the long hole 38 of the locking lever 33, and the locking lever 33 is rotatable about the support shaft 28 and slidable along the length direction. Will be supported by. As shown in FIG. 5, the locking lever 33 is in a position where it substantially overlaps the insertion hole 26 of the screw 25. On the other hand, the bracket 21 is applied to a surface slightly above the center height position in the middle frame 14 on the front surface of the refrigerator main body 10, and as shown in FIG.
The screw 25 passed through is screwed into the screw hole 27 of the middle frame 14 and tightened to be fixed.

As a result, as shown in FIGS. 4 and 7 (A), the locking lever 33 always has its tip directed substantially right below the support shaft 28 against the rear end 38B of the elongated hole 38 by its own weight. It takes a drooping posture. This position is the storage position, and is stored in the space between the left and right closed doors 16. Further, as will be described later in detail, the locking lever 33 can be raised in a horizontal posture while being rotated around the support shaft 28 and the support shaft 2
It is possible to pull out 8 toward the front while sliding 8 along the long hole 38.

The lock plate 40 is formed in a square shape in front, and has a size such that it can be applied between the adjacent side edges of the left and right doors 16 as shown in FIG. An insertion groove 41 into which the tip of the locking lever 33 can be inserted is opened at the center of the lock plate 40. When the locking lever 33 is raised from the storage position to the horizontal posture, the door 1 with the front end of the locking lever 33 closed.
6 (see FIG. 9 (A)), it is possible to hit the lock plate 40 over both doors 16 while inserting the insertion groove 41 into the tip of the locking lever 33, and from this state, the locking lever 33 is closest to the front. When you pull it up to
The lock hole 34 of the locking lever 33 is set to project in front of the lock plate 40 by a diameter that allows the lock arm 46 of the padlock 45 to be inserted (see FIG. 10). The position where the locking lever 33 is pulled out most is the locking position. In addition, on the surface of the lock plate 40, in order not to scratch the door 16,
The resin coating is applied, and the holes 42 are provided on both sides of the insertion groove 41, and the resin coating is provided so as to prevent the resin coating from floating by allowing the resin to wrap around the holes 42.

Next, the operation of this embodiment will be described. As shown in FIG. 7A, the locking lever 33 is always in the hanging position and in the storage position. When locking, both doors 1
A finger is put in the gap 6 and the finger is hooked on the tip of the locking lever 33 to raise it toward you as shown in FIG. In the locking lever 33, as shown in FIGS. 8A and 8B, the arcuate portion 35 at the base end portion has the base plate 22 of the bracket 21.
The support shaft 28 is slid up and smoothly raised, and the support shaft 28 gradually moves in the elongated hole 38 toward the front end 38A.

As shown in FIG. 9A, the locking lever 33
Is raised in a horizontal position, the engaging portion 37 at the base end contacts the base plate 22 of the bracket 21, and the support shaft 28 reaches the front end 38A of the elongated hole 38. Here, when the finger is released, the locking lever 33 tries to return to the hanging posture by its own weight,
The locking portion 33 is frictionally engaged with the base plate 22 of the bracket 21 and the front end of the elongated hole 38 is received by the support shaft 28, so that the locking lever 33 is held in the horizontal posture as it is. . Here, when a force in the direction of further lifting the locking lever 33 acts, the frictional force or the like does not act, and the locking lever 33 moves freely. On the other hand, when a force larger than a predetermined value acts in the direction of lowering the locking lever 33, the locking lever 33 returns to the hanging posture against the frictional force or the like. Therefore, unlike the case where the locking lever 33 is fixed, it is possible to avoid that another object is strongly hit. Further, the holding force of the locking lever 33 can be adjusted by the formation position and angle of the elongated hole 38. Here, the angle of the long hole 38 is related to the easiness of pulling out the locking lever 33, which will be described later, and therefore may be set in balance with them.

When the locking lever 33 is held in the horizontal posture as described above, as shown in FIG. 9B, the tip of the locking lever 33 is passed through the insertion groove 41 and the lock plate 4 is inserted.
Apply 0 over the front of both doors 16. Next, the tip of the locking lever 33 is picked up and pulled toward you. Then, as shown in FIG. 10, the support shaft 28 moves the rear end 38B of the elongated hole 38.
The locking lever 33 is pulled out to the front locking position while moving to. In this locked position, the engaging portion 37 is engaged with the bracket 2
Although the holding force is released by being separated from the base plate 22 of No. 1 and the frictional engagement is removed or the like, the locking lever 33 is received by the lower edge of the insertion groove 41 and the horizontal posture of the locking lever 33 is maintained.

In the locked position, the lock hole 34 is located in the lock arm 4.
Since it protrudes in front of the lock plate 40 by a diameter required for inserting 6, the padlock 45 can be covered by passing the lock arm 46 through the lock hole 34 as shown in FIGS. 11 and 12. Thus, when the padlock 45 is broken, the forward movement of the locking lever 33 is locked by the support shaft 28, and the backward movement is locked by the padlock 45.
Since there is no room for the locking lever 33 to move back and forth, the door 16 can be locked without rattling.

To release the lock, when the padlock 45 is removed from the state of FIG. 10 and then the lock plate 40 is removed, as shown in FIG. 13, the lock lever 33 pivots to the storage position by its own weight. At this time, the locking lever 33 pivots toward the middle frame 14 with excessive force, but the bracket 21
It is possible to avoid hitting the inner frame 14 by hitting the screw 25 that has stopped.

As described above, according to this embodiment,
When the locking lever 33 is completely pulled out, the lock hole 34 at the tip is set to project in front of the lock plate 40 by a diameter necessary for inserting the lock arm 46, and the padlock 45 is inserted there. Since there is no room for the locking lever 33 to move, the door 16 is prevented from rattling. Further, when the locking lever 33 is raised from the storage position to the horizontal posture, the engaging portion 37 on the base end side is attached to the bracket 2.
1 is frictionally engaged with the base plate 22, and the long hole 38 has the support shaft 28.
It is held in a horizontal position by being received by. That is, the lock lever 33 can be held by one operation such as rotating the lock lever 33. Further, since the supporting shaft 28 does not have a structure for obtaining a holding force depending on the shape of the supporting shaft 28, a circular shaft can be used as the supporting shaft 28 and the manufacturing is simple. Further, since a holding force is released when a force of a predetermined value or more is applied, it is possible to avoid hitting the locking lever 33 with a hand or another object strongly. Locking lever 3
Since the holding by frictional engagement or the like is released in the state where 3 is pulled out to the locking position, if the padlock 45 and the lock plate 40 are disengaged, the locking lever 33 rotates to the drooping posture by its own weight and is stored. To be done. Locking lever 33 after unlocking
It is avoided to forget to store.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention. (1) The locking device of the present invention can also be applied to a single-opening type in which two doors 16 are opened and closed in the same direction, as shown in FIG. In this case, the adjacent doors 16 are locked between the base end side and the swing end side. (2) Further, as shown in FIG. 15, a drawer type door 16
It can also be applied to the type with A. (3) Further, as shown in FIG. 16, it can also be applied to the one-door door 16. In this case, the lock plate 40A may be formed in an angled shape so that one end of the lock plate 40A abuts on the edge of the doorway 15. (4) The present invention can be widely applied to all storages including a door that opens and closes the entrance of the storage main body.

[Brief description of drawings]

FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a locking device.

FIG. 3 is a front view of the locking lever.

FIG. 4 is a side view showing a state in which the lock lever is supported by the bracket.

[Figure 5] Front view

6 is a sectional view taken along line AA of FIG.

FIG. 7A is a side sectional view showing a state where the locking lever is in a retracted position, and FIG. 7B is a side sectional view showing a state where the locking lever is in a state of being raised.

FIG. 8 (A) is a side cross-sectional view in the middle of raising the locking lever,
(B) Side sectional view a little before being raised in a horizontal position

9A is a side sectional view showing a state where a locking lever is raised in a horizontal posture, and FIG. 9B is a side sectional view showing a state where a lock plate is applied.

FIG. 10 is a side sectional view in a locked state.

FIG. 11 is a partially cutaway plan view thereof.

FIG. 12 is a partially enlarged front view of FIG.

FIG. 13 is a side sectional view showing an operation when the lock is released.

FIG. 14 is a partially cutaway plan view of a locked state according to another embodiment.

FIG. 15 is a partially cutaway plan view of a locked state according to another embodiment.

FIG. 16 is a partially cutaway plan view of a locked state according to another embodiment.

FIG. 17 is a side sectional view of a conventional example.

[Explanation of symbols]

10 ... Refrigerator body 14 ... Middle frame 15 ... Doorway 16, 16A ... Door 20 ... Locking device 21 ... Bracket 22 ... Substrate 28 ... Support shaft 33 ... Locking lever 34 ... Lock hole 37 ... Engagement part 38 ... long hole 40, 40A ... Lock plate 41 ... Insertion groove 45 ... Padlock 46 ... Lock arm

─────────────────────────────────────────────────── ─── Continuation of front page (56) References 62-138191 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 65/00 E05C 19/00 E05C 21 / 02 F25D 23/02

Claims (2)

(57) [Claims] 1. A storage having an opening / closing door provided at a front door of the storage main body, wherein the storage shaft is provided at a front surface of the storage main body, and a lock arm is inserted at a tip thereof. A locking lever that has a hole and a base end through which the support shaft can be inserted, and is supported so as to be rotatable and retractable with respect to the support shaft, and the front end side of the locking lever can be inserted. A lock plate capable of covering a part of the front surface of the door having a different insertion groove, and inserting the lock plate into the insertion groove while inserting the tip of the locking lever raised in a substantially horizontal position into the insertion groove. After being applied to a part of the front surface, the lock arm of the lock is inserted into the lock hole to lock the lock hole, and the lock lever is pulled out to the lock position closest to the lock lever. The lock hole has a diameter that allows the lock arm to be inserted. Serial has a configuration projecting in front of the lock plate, and the base end side of the locking lever, prior to said storage body
The locking lever is moved forward by frictionally engaging the surface.
Engagement part that can be held in a substantially horizontal posture facing overhangs
Reservoir, characterized in that it is. The wherein the state where the locking lever is pulled out to the locked position, according to claim wherein the engaging portion is characterized in that it is a set away from the front surface of the storage body 1
The listed storage.