JPH05141140A - Show case - Google Patents

Abstract

PURPOSE:To provide a show case having a locking device of a door covered up from the outside in a simple constitution. CONSTITUTION:A door 3 is rotatably pivoted on a show case 1. A panel for closing a machine room in such a manner as to freely open and close is provided below the door 3. An operating shaft 20 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase equipped with a door locking device that opens and closes an opening of a storage chamber.

[0002]

2. Description of the Related Art Conventionally, a door locking structure in this type of showcase is disclosed, for example, in Japanese Utility Model Publication No. 61-8762 (A47).
As shown in F3 / 02), a lock hole is formed on the non-pivotal side of the door, and a hook is engaged with this hole from the door frame side of the showcase, and then the lock is attached to the hook. It was to be locked.

[0003]

However, according to such a structure, the lock is exposed to the outside, which is not preferable in terms of design. Particularly, since the position of the hook is clearly discriminated from the outside, it is liable to be mischievous and engaged. There was a problem that a lock was required to maintain the condition.

Further, in the case of locking the hook by engaging the hook only with the lower end of the door as in the above-mentioned publication, when the upper end of the door is pulled hard, the elasticity of the door causes the door to warp, and a hand is put into the storage chamber from above the door. There was a problem of being caught.

The present invention has been made to solve the above-mentioned conventional technical problems, and an object of the present invention is to provide a showcase in which a door locking device is hidden from the outside with a simple structure.

[0006] Another object of the present invention is to provide a showcase capable of reliably maintaining the closed state of the door when the door is locked.

[0007]

According to a first aspect of the present invention, there is provided a showcase 1 which is rotatably pivoted to one side of an opening 9 of a storage chamber 6 and which opens and closes the opening 9. A panel 10 located below the door 3 to open and close the machine room 7 below the storage chamber 6 and a panel 10 located inside the panel 10 to be movable up and down are maintained in a raised state and a lowered state. It has a lock device (action shaft 20) that is enabled, and this lock device (action shaft 20) is engaged with the lower end of the door 3 in a raised state, and the engagement is released in a lowered state. It is configured to.

The showcase 1 according to the second aspect of the present invention includes a door 3 which is pivotally supported at one side of the opening 9 portion of the storage chamber 6 and is capable of opening and closing the opening 9, and a non-pivot of the door 3. A passage 38 that is formed inside the support side and is open at the upper and lower ends, and a locking shaft 43 that is vertically movably inserted into the passage 38.
And an action shaft 20 provided below the door 3 so as to be movable up and down and capable of maintaining a raised state and a lowered state, and an engagement portion (a hinge collar hole 15) formed above the door 3. When the working shaft 20 is lowered, both shafts 20 and 43 allow the door 3 to rotate, and when the working shaft 20 is raised, the working shaft 20 enters into the passage from the lower end of the passage 38 and is engaged. In addition, the locking shaft 43 is configured to be pushed up by the action shaft 20 and engage with the engaging portion (the hinge collar hole 15).

[0009]

According to the first aspect of the invention, the locking device (operating shaft 20) below the door 3 is a panel 10 for opening and closing the machine room 7.
Since it is hidden inside, it is difficult or mischievous to be invisible or invisible from the outside.

According to the second aspect of the present invention, the working shaft 20 is engaged with the lower end of the passage 38 of the door 3 when the working shaft 20 below the door 3 is raised, and the locking shaft 4 inside the door 3 is engaged.
Since 3 is engaged with the engaging portion (the hinge collar hole 15) above the door 3, the door 3 is prevented from rotating at the upper and lower ends.

[0011]

Embodiments Next, embodiments will be described with reference to the drawings. 1 is a perspective view of a showcase 1 as an embodiment, FIG. 2 is a side view of the same, FIG. 3 is a sectional view taken along the line AA of FIG. 2, FIG. 4 is a perspective view of a locking fitting 2 and an operating shaft 20, and FIG. Shows a plan sectional view of the transparent door 3, respectively. Below the top plate 4 of the showcase 1, there is formed a storage chamber 6 having three openings surrounded by transparent plates 5, 5 and 5 made of glass or the like and having an opening 9 at the front, and further below this storage chamber 6. A machine room 7 having a front opening for installing a compressor of a refrigeration cycle (not shown) and the like is configured. A plurality of shelves 8, 8 for displaying products are installed in the storage chamber 6, and cool air is circulated from a cooler (not shown) to be cooled to a predetermined refrigerating temperature, and the front opening 9 is formed as described above. It is closed by the door 3 so as to be openable and closable.
Further, the front opening of the machine chamber 7 is openably and closably closed by a panel 10 which is made of metal or resin and which cannot be seen through and which can be turned around the lower end.

An upper hinge reinforcing plate 12 is provided inside the top plate 4.
Also, the top frame 13 is horizontally attached, and the upper hinge 1 is located on both lower surfaces of the top frame 13 located at the upper edge of the opening 9.
4 and 14 are screwed to the upper hinge reinforcing plate 12.
Hinge collar holes 15 as engaging portions are formed in portions of the upper hinges 14 and 14 located on the outer sides, respectively, and the upper portion of the top frame 13 located above the hinge collar holes 15 is also outside. Notches 16, 16 opened toward
Are formed respectively. Further, on the front sides of the base legs 19 and 19 located on both sides in the machine room 7 below the opening 9, lower hinges 18 and 1 located inside the panel 10 and opened vertically are provided.
8 is attached.

The base leg 1 below the lower hinge 18 on the right side
The locking metal fitting 2 is fixed to the front surface of the screw 9 with screws. As shown in FIG. 4, the locking metal fitting 2 is provided with a locking hook 21 which is bent forward on the inside, and insertion portions 22 and 22 which are bent forward and face each other with a vertical gap on the outside. ,
An insertion hole 22A is formed in each of the insertion portions 22 and 22, and an action shaft 20 as a locking device below the door 3 is inserted into the insertion hole 22A so as to be vertically movable, and an upper portion thereof enters the lower hinge 18. is doing. The action shaft 20 is positioned between the insertion portions 22 of the locking fitting 2 and the engagement hole 23.
Since the locking lever 24 provided with is fixed, the working shaft 20 can move up and down between the insertion portions 22 and 22, and the working shaft 20 is always lowered by its own weight and the locking lever 24 is lowered. 4 is abutted on the side insertion portion 22, and the upper end thereof is located at the upper edge of the lower hinge 18.
When the lock lever 24 is lifted and raised as indicated by the middle arrow, the engaging hole 23 of the lock lever 24 has the lock hook 2
It is possible to engage and disengage in 1. Further, the locking metal fitting 2 and the working shaft 20 are located in the machine room 7 inside the panel 10,
When the panel 10 is closed, it is hidden by the panel 10, but the engaging hole 23 of the locking lever 24 has the locking hook 2.
The upper end of the working shaft 20 projects upward from the panel 10 in the state of being engaged with 1.

The door 3 is composed of synthetic resin upper and lower door frames 26, 27.
A door frame 30 assembled by screwing a hinge-side door frame 28 on the right side and a handle-side door frame 29 on the left side, and a pair glass 31 fitted in the door frame 30. , A gasket 32 on the inner surface of the door frame 30, and a handle 33 is attached to the front surface of the handle side door frame 29. Further, inside the hinge-side door frame 28 and the handle-side door frame 29, an internally hollow shaft insertion portion 34 which is located on a straight line connecting the hinge collar hole 15 of the upper hinge 14 and the lower hinge 18 and extends vertically , 34 are formed, while
Upper and lower door frames 2 corresponding to the shaft insertion portions 34, 34
6 and 27 have through holes 35 and 36 respectively formed therein, and the shaft insertion portion 34 and the through holes 35 and 36 allow passages 38, 3 extending between upper and lower ends inside both sides of the door 3.
8 is formed.

In the passage 38 of the door frame 28 on the hinge side of the door 3,
The hinge shafts 40, 40 are inserted from above and below, and the hinge shafts 40, 40 are covered with hinge collars 41, 41, respectively. In that state, the lower hinge shaft 40
Is rotatably engaged with the lower hinge 18. The upper hinge shaft 40 is rotatably inserted into the hinge collar hole 15 of the upper hinge 14, and in this state, the upper hinge 14 is fixed to the top frame 1.
3 is inserted into the lower surface (at this time, the hinge shaft 40 passes through the notch 16 of the top frame 13) and is screwed to the upper hinge reinforcing plate 12. In this way, the door 3 has the upper and lower hinges 14, 1
It is rotatably supported between eight parts. Further, as will be described later, when the door 3 is removed, the reverse operation is performed.

On the other hand, a lock shaft 43 is vertically movably inserted in the passage 38 of the handle side door frame 29 of the door 3.
Shaft insertion portion 3 that constitutes the passage 38 of the handle side door frame 29
Reference numeral 4 denotes a cutout portion 45 formed by cutting out a proper position to form a cutout portion 45, and a ring 46 is fixed to the locking shaft 43 in the cutout portion 45. Locking shaft 4
3, the ring 46 is always in contact with the lower end of the cutout portion 45 by its own weight as shown in FIG. 3, and in this state, the upper and lower ends of the locking shaft 43 are the opening edges of the through holes 35, 36 at the upper and lower ends of the passage 38. Is located in.

Next, the lock operation of the showcase 1 will be described. As shown in FIG. 3, the upper end of the working shaft 20 is located at the upper edge of the lower hinge 18, and the upper and lower ends of the locking shaft 43 are the passage 3.
8, the door 3 is rotatable about the hinge shafts 40, 40 in a state of being positioned at the opening edges of the through holes 35, 36 at the upper and lower ends, and allows the opening 9 to be opened and closed. From this state, the panel 10 is opened, the lock lever 24 is held and the working shaft 20 is lifted, and the engagement hole 23 of the lock lever 24 is engaged with the lock hook 21. When the action shaft 20 rises, its upper end projects upward from the panel 10 and enters the through hole 36 of the door 3, abuts against the lower end of the locking shaft 43 and pushes it upward, and the engaging shaft itself engages with the through hole 36. To do. When the locking shaft 43 is pushed up, its upper end projects upward from the through hole 35 of the door 3 and enters into the hinge collar hole 15 of the upper hinge 14 to be engaged (state of FIG. 6).

In this way, by raising the action shaft 20, the action shaft 20 engages with the through hole 36, and at the same time, the locking shaft 43 engages with the hinge collar hole 15 of the upper hinge 14, so that the door 3 is closed. The rotation is blocked at the top and bottom of the non-pivot side. As a result, the elasticity of the door 3 makes it difficult to form a gap between the door 3 and the opening 9, and it is possible to prevent mischief at the time of locking by inserting a hand through the opening 9. After the engagement hole 23 of the locking lever 24 is engaged with the locking hook 21, the action shaft 20 is maintained in that state, but the lock 50 is inserted into the hole 49 formed in the locking hook 21 as shown in FIG. Locking prevents the locking lever 24 from coming off the locking hook 21. After that, the panel 10
When the lock is closed, the locking metal fitting 2, the working shaft 20 and the like are hidden from the outside, which is good in terms of design, but the hiding makes the working shaft 20 and the like invisible or hard to see from the outside. Therefore, mischief is less likely to occur, and the door 3 can be prevented from opening without using the lock 50.

Next, FIGS. 7 and 8 show another embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 3 and 6 indicate the same elements. As described above, the upper and lower hinges 14 and 18 are paired on the left and right sides, which makes them symmetrical.
When the door 3 is opened from the left side as shown in FIG. on the other hand,
In the case of the present embodiment, a ring 46 is fixed to the locking shaft 43 at approximately the middle of the cutout portion 45, and coil springs 51, 51 are provided between the upper end and the lower end of the ring 46 and the cutout portion 45, respectively. It has been inserted. The locking shaft 43 is stably held in the passage 38 by the repulsive force of the coil springs 51, 51 regardless of gravity, and the upper and lower ends of the locking shaft 43 are always upper and lower through holes 35, 36 as shown in FIG. It is located at the opening edge of and allows opening and closing of the door 3.

From this state, the panel 10 is opened, the lock lever 24 is held, the working shaft 20 is lifted, and the engaging hole 23 of the lock lever 24 is engaged with the lock hook 21. When the action shaft 20 rises, its upper end protrudes upward from the panel 10 and enters the through hole 36 of the door 3, abuts against the lower end of the locking shaft 43, and this acts upward against the elastic force of the coil spring 51. When pushed up, it engages with the through hole 36. When the locking shaft 43 is pushed up, its upper end projects upward from the through hole 35 of the door 3 and enters into the hinge collar hole 15 of the upper hinge 14 to be engaged (state of FIG. 8).
Thereafter, similarly, the lock 50 is used for locking.

Next, when reversing the opening direction of the door 3,
From the state shown in FIG. 7, the screw fixing the upper hinge 14 to the upper hinge reinforcing plate 12 is removed, and the upper hinge shaft 40 is laterally removed from the top frame 13 together with the upper hinge 14, and the lower hinge shaft 40 is also lowered. Pull out from the hinge 18 and remove the door 3. Next, the door 3 is turned over and the hinge shaft 40,
With 40 on the left side, hinge shafts 40, 40 are rotatably attached to the upper and lower hinges 14, 18 on the left side as described above. The hinge fitting 2 and the working shaft 20 are also moved to the front surface of the base leg 19 on the right side, and the reverse installation of the door 3 is completed.

Even if the door 3 is turned over, in the case of this embodiment, the lock shaft 43 has the coil spring 51 regardless of gravity.
It is held in the passage 38 by 51 and can be moved in either the vertical direction within the vertical dimension range of the excision portion 45, so that the locking operation can be performed in the same manner.

[0023]

According to the invention of claim 1, since the locking device under the door is hidden inside the panel for opening and closing the machine room,
It becomes invisible or hard to see from the outside, and it becomes possible to prevent unlocking of the locking device due to mischief.

According to the second aspect of the present invention, the working shaft engages with the lower end of the door and the locking shaft inside the door engages with the engaging portion above the door when the working shaft below the door is raised. Therefore, the door is prevented from rotating at the upper and lower ends, so that the door can be prevented from being stolen due to mischief utilizing the elasticity of the door, and the action shaft and the locking shaft can be engaged at the same time only by raising the action shaft. Is achieved,
Locking operation is also extremely easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a showcase.

FIG. 2 is a side view of the showcase.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of a locking member and a working shaft.

FIG. 5 is a plan sectional view of a door.

FIG. 6 is a sectional view of the showcase corresponding to FIG. 3 in a locked state.

FIG. 7 is a sectional view of a showcase showing another embodiment corresponding to FIG.

FIG. 8 is a cross-sectional view corresponding to FIG. 3 in a locked state of the showcase of another embodiment.

[Explanation of symbols]

 1 Showcase 2 Locking metal fitting 3 Door 6 Storage room 7 Machine room 9 Opening 10 Panel 15 Hole for hinge collar 20 Working shaft 38 Passage 43 Locking shaft

Claims (2)

[Claims] 1. A door rotatably pivoted to one side of an opening of a storage chamber to openably and closably close the opening, and a machine room located below the door to open and close a machine room below the storage chamber. It comprises a closing panel and a locking device which is located inside the panel and is movable up and down, and is capable of maintaining a raised state and a lowered state. A showcase characterized by being engaged with a lower end of a door and being disengaged in a lowered state. 2. A door rotatably pivoted to one side of the opening of the storage chamber to openably and closably close the opening, and a passage formed inside the non-pivot side of the door and opened at upper and lower ends. A locking shaft vertically movably inserted into the passage, an operation shaft vertically movably provided below the door and capable of maintaining a raised state and a lowered state, and a working shaft formed above the door. An engaging portion, the both shafts allow the door to rotate when the working shaft is lowered, and the working shaft is located inside the passage from the lower end of the passage when the working shaft is raised. The showcase, wherein the lock shaft is pushed up by the action shaft to be engaged with the engaging portion while entering and engaging.