JPH03121016A - Door lock device for display casing - Google Patents

Abstract

PURPOSE:To lock a door with the use of a key fixture having less parts projected from the side surfaces of the body thereof by providing a horizontal lock holding part such that an arm member is projected from upper and lower doors through a space therebetween by rotating manipulation, and is led through a hole in a lock plate, and a lock is vertically attached. CONSTITUTION:In a key fixture 20 in a normal condition, a part of a lock holding section 33 is projected from a stationary member 21, having less parts projected from a display casing body 1. Further, an arm member 22 is slidable relative to the stationary member 21, and accordingly, even though the user erroneously touches the arm member 22 upon manipulation of opening and closing of doors, the arm member 22 is moved within the slidable range so as to absorb a shock upon touching, thereby it is possible to prevent the user from being harmed. Further, since the arm member is rotatably supported to the stationary member 21 without using a fixing member or a shaft member such as a screw or the like, it is possible to reduce the number of necessary components, thereby it is possible to obtain a cheap locking device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Use The present invention relates to a door locking device for a showcase, which is equipped with a pair of upper and lower rotatable doors supported on one side of a main body so as to be openable and closable.

BACKGROUND ART Japanese Utility Model Publication No. 1173/1986 discloses a showcase having a pair of upper and lower rotating transparent doors for opening and closing an opening of a showcase body, and locking the upper and lower transparent doors to each other.

This publication states that the front of the main body is divided into a horizontal partition column and a vertical partition column, and a key holder is attached near the intersection of the two partition columns. On the other hand, a lock plate that can wrap and engage with each door body when the double door is closed can be inserted into the mounting piece, and with the lock plate inserted, the lock plate can be inserted into the lock mounting hole. A device is disclosed in which each door body is locked by attaching a lock, and the key holder is attached to an L-shaped angular holder body and cantilevered to the holder body, and the key holder is attached to the holder body in a cantilevered manner. It has a mounting piece that is rotatable between the position and the upright position.

Problems to be Solved by the Invention In the above-mentioned conventional technology, since the fixture body of the key fixture is L-shaped, the fixture body protrudes from the front surface of the showcase body. This is undeniable, and there is a risk that a user may come into contact with this protruding portion and be injured when storing or taking out items in the showcase. Furthermore, since this key holder is located near a corner of the upper door, the user may mistakenly hold a corner of the upper door while opening/closing the door, especially when closing the door. If you operated it, your hand would get caught between the door and the main unit, and there was a risk of serious injury.

On the other hand, the horizontal surface part of the holder main body of the key holder and the mounting piece are
Since it is stored and held between the ends of the upper and lower doors in an overlapping manner, when rotating the mounting piece itself,
The problem was that the mounting piece was difficult to grip and difficult to rotate. Furthermore, since the mounting piece is simply rotatably attached to the fixture body, it always requires a shaft that is both a rotating member and a fixed member, and it is desirable to reduce the number of shafts. Ta. Furthermore, since the mounting piece is rotatable relative to the main body of the fixture, there is a risk that it will rotate due to the shock or vibration that occurs when the door is closed, and it is impossible to prevent this rotation. There was a problem.

Accordingly, the present invention provides a showcase door locking device that locks the door using a key fixture with a reduced protrusion from the side surface of the main body.

[Structure of the invention]

Means for Solving the Problems The present invention provides a showcase equipped with a pair of upper and lower rotating doors supported on one side of the main body so as to be openable and closable. A key holder is attached to one side of the main body between the main body and includes a fixed body and an arm that is slidably and rotatably supported by the fixed body, and an arm that wraps with each layer when both the upper and lower doors are closed. A locking plate having a hole into which the arm body is inserted; It has a long hole that penetrates the rest of the body and allows the remaining part to slide when a part of the arm is slid, and the arm can be rotated to open between the upper and lower doors. It has a horizontal lock holding part that protrudes forward from each layer and passes through the hole in the lock plate to vertically attach the lock.

The working fixed body has a storage part and a long hole, and the arm body is slidably and rotatably supported on this fixed body, so the key holder itself is in its normal state, that is, the state in which it is not locked. In this case, the portion protruding from one side of the main body is reduced. Moreover, since the lock holding part is held so as to stand up against the fixed body in the area between the upper and lower doors, it is very easy to grasp and slide and rotate.

Example Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a cooling showcase body, and the opening for storing products stored therein (formed on one side of the body) is divided into at least a pair of upper and lower doors (transparent doors in this example, hereinafter referred to as an upper door and a lower door, respectively). One side (the left side in the figure) is pivotally supported on the main body 1 so that it can be opened and closed at 3 and 4. The pair of upper and lower transparent doors 3 and 4 each have the following configuration. That is, a synthetic resin frame (not shown) with a U-shaped cross section into which the peripheries of two front and rear transparent plates, which are spaced apart by a spacer, are inserted, and the entire transparent doors 3 and 4 surround the frame. It consists of a decorative frame 6 made of metal such as aluminum attached around the circumference. Further, an airtight retaining member 7 such as a gasket for maintaining airtightness between the door 3.degree. 4 and the main body 1 is arranged in an annular manner on the inside surface of the decorative frame 6.

Reference numeral 10 denotes a horizontal rod that divides the opening 2 into two parts (2A, 2B), upper and lower.The horizontal rod 10 and the frame 11 forming the opening intersect (the intersection on the right in this example). A key holder 20 is attached so as to straddle the rod 10 and frame 11.

This key holder 20 consists of a fixed body 21 and an arm 22 rotatably supported by the fixed body 21, and the fixed body 21 has a part of the arm 22 slidable in the left and right direction. A storage space 24 is formed between the main body 1 (more specifically, the horizontal rod 10), and the remaining part of the arm body 22 is penetrated and a part of the arm body 22 is slid. Similarly, the section is formed with a long hole 26 that allows sliding movement and a notch 27 that allows the arm itself to rotate when the arm 22 is slid to the right. It is something that takes shape. One end (in this example, the right end) of the storage portion 25 has a sliding regulating piece 25B that determines the slidable range of the arm 22, and the arm 22 is moved up to this regulating piece 25B. When sliding, the arm body 22
A notch 27 and a long hole 26 are formed so that it can rotate.

The arm body 22 is formed with elasticity by bending a metal wire material such as a wire, and a part thereof, for example, one end side serves as a shaft part and when placed in the storage part 25 of the fixed body 21. A rotating part 3 having a rotation regulating piece 31 that regulates rotation.
2, and the remaining part is made rotatable by sliding the arm body 22 to the right and positioning the regulating piece 31 in the notch 27, so that when the arm body 22 is rotated, its tip will move up and down. Both doors 3, 4
It is formed in such a length that it protrudes forward from each layer 3, 4 from between them, and at its tip, that is, the other end, is formed an annular lock holding part 33 to which a lock 40, which will be described later, is attached. Furthermore, when the arm body 22 is slid to the left (this is the so-called normal state), a part of the lock holding part 33 is made to protrude slightly to the side from the extension line of the right ends of the doors 3 and 4. It is desirable to leave it there. At this time, the arm body 22 is prevented from rotating due to the relationship between the rotation restriction piece 31 and the storage portion 25, and the arm body 22 is prevented from rotating due to shock or vibration when the doors 3 and 4 are closed. It has become. In addition, by positioning the rotating part 32 in the storage part 25 and passing the other part through the elongated hole 26, the arm body 2
2 itself will be held somewhat similar to the main body 1.

Reference numeral 35 denotes a lock plate having a hole 36 that wraps around a portion of the front corner of each layer 3, 4 and into which the arm body 22 is inserted when both the upper and lower doors 3, 4 are closed.

That is, the key fixture 20, the lock plate 35, and the lock 40 represented by a padlock constitute the door locking device K of the present invention.

Next, how to use the door locking device will be explained.

■Pinch the lock holding part 33 of the arm body 22 in the normal state,
By sliding it in the right direction, the rotating portion 32 moves to a position where it comes into contact with or approaches the sliding restriction piece 25B, and the entire restriction piece 31 is positioned within the notch 27. (2) Next, the arm body 22 is rotated forward about the rotation part 32 of the arm body 22, and the lock holding part 33 at the tip thereof is positioned so as to protrude further forward than each layer 3.4.

(2) The arm body 22 in this state is inserted into the hole 36 of the lock plate 35, and the lock plate 35 is attached so that the lock plate 35 overlaps each layer 3, 4. (2) Then, the lock arm of the lock 40 is passed through the lock holding portion 33 to create a locked state in which forward rotation of each layer 3.4 is impossible.

To unlock the door, the procedure described above (■-■-■-■) may be reversed (■-■-■=■).

According to the above configuration, in the normal state of the key fixture 20, only the lock holding portion 33 protrudes from the fixed body 21, and the portion protruding from the showcase body 1 is small. Moreover, since the arm body 22 is movable to slide relative to the fixed body 21, even if the user accidentally touches the arm body 22 when opening/closing the door, the arm body 22 can be slid within this slidable range. It works to absorb shock when the body moves or is touched, making it less likely that injuries will occur to the user.

Further, since the arm body 22 is rotatably held relative to the fixed body 21 without using a fixing member such as a screw that can serve as a shaft, the number of parts can be reduced and an inexpensive locking device can be provided. Since the arm body 22 cannot be rotated unless it is slid inside the storage section 25, the arm body 22 will not be inadvertently rotated due to shocks, vibrations, etc. that occur when opening and closing the door. .

Furthermore, since the lock plate 35 is provided with a hole 36, it can be easily hooked onto a storage room or the side of a showcase in a normal state, thereby preventing the lock plate from being lost.

〔Effect of the invention〕

As described in detail above, according to the present invention, in the key fixture, only the lock holding portion protrudes from the fixed body in its normal state, thereby reducing the height of protrusion from one side of the showcase body. In addition, since the arm body is held in a slidable state with respect to the fixed body by the storage part and the long hole, even if the user accidentally touches the arm body when opening/closing the door, this sliding The arm body moves within the possible range and acts to absorb the impact force when touched, preventing injury to the user.
<I'm here. Furthermore, the arm body can be held rotatably by slidingly moving it relative to the fixed body,
A shaft body separate from the arm body is not required, the number of parts can be reduced, and the locking device can be made inexpensive. Since the arm cannot be rotated unless it is slid relative to the fixed body, the arm may inadvertently rotate due to shocks or vibrations caused by opening and closing the door. You can prevent this from happening.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention. FIG. 1 is an enlarged view of part A in FIG. 3, FIG. 2 is a view corresponding to FIG. 1 in a locked state, FIG. 3 is a perspective view of a showcase, and FIG. 5 and 5 are front views of the key holder, and FIGS. 6 to 8 are explanatory views of the key holder as viewed from the bottom. 1...Showcase, 3,4...Door, 20
...Key holder, 21...Fixed body, 22...Arm body, 24...Space, 25...Storage part, 26.
... Long hole, 27 ... Notch, 32 ... Rotating part,
33...Lock holding part, 35...Lock plate, 36
...hole, 40...lock, K...door locking device.

Claims (1)

[Claims] 1. In a showcase equipped with a pair of upper and lower rotating doors supported on one side of the main body so as to be openable and closable, a fixed body is attached to one side of the main body between the lower end of the upper door and the upper end of the lower door. and an arm slidably and rotatably supported by the fixed body; and a lock plate having a hole that wraps around each door and into which the arm is inserted when both the upper and lower doors are closed. The fixed body includes a storage part that forms a space between the main body and the main body in which a part of the arm body is slidably stored in the left and right direction, and a housing part that penetrates the remaining part of the arm body. and an elongated hole that allows the remaining part to slide when a part of the arm is slid, and the arm can be rotated from between the upper and lower doors to from each door. A door locking device for a showcase, characterized in that the door locking device has a lock holding portion that protrudes forward and is penetrated through the hole of the lock plate to attach the lock.