JP5326353B2 - Opening and closing structure of showcase inspection lid - Google Patents

Description

  The present invention relates to an opening / closing structure of an inspection lid attached to a front opening of a machine room of a showcase installed in a store such as a supermarket.

  As shown in FIG. 4, the showcase has an opening 2 for putting in and out the product on the upper surface, and the inside of the showcase main body 1 having a substantially U-shaped cross section formed by a heat insulating wall is separated from the product storage 4 and the cold air by a partition plate 3. An illumination lamp such as a fluorescent lamp 5 that irradiates the inside of the product storage 4 and an illumination light switch 6 are arranged at the end of the opening 2 and the illuminating light switch 6 is arranged in the cold air circulation duct. A blower for blowing air is provided.

  In some cases, a machine room 7 is provided below the showcase body 1, and a refrigeration unit / electric box 8 including a compressor, a condenser, a blower, and the like is provided in the machine room 7.

  The front surface of the machine room 7 is formed in an opening 9 for maintenance, and this opening is covered with an inspection lid 10 so as to be freely opened and closed.

  Conventionally, there are, for example, an upper hanging method and a lower hanging method as an attachment structure of the inspection lid 10 to the opening 9. In the upper hanging method, a magnet is attached to the lower part on the back side of the inspection lid 10 and the upper part on the rear side. On the other hand, a locking protrusion is provided on the upper edge of the opening 9 to engage the hook.

  The upper part of the inspection lid 10 is rotatably engaged with the hooks and the lower part is magnetized on the outer frame of the machine room 7 so that the inspection lid 10 opens and closes at the opening 9. It is installed freely.

  On the other hand, in the lower hooking method, a magnet is attached to the upper part on the back side of the inspection lid 10 in contrast to the upper hooking method, and a locking hole is formed in the lower part on the back side. A locking hook that is inserted into the locking hole is provided.

A magnet is magnetically attached to the outer frame of the machine room at the upper part of the inspection lid 10, and a locking hook is rotatably inserted into the locking hole at the lower part, so that the inspection lid 10 can be opened and closed freely at the opening 9. Installed on. (For example, Japanese Patent Laid-Open No. 10-311657)
Japanese Patent Laid-Open No. 10-311657

  In the above-mentioned top hanging method, even when the showcase is shaken when the showcase is transported and the lower part of the inspection lid is separated from the opening against the magnetic force, the upper part of the inspection lid is locked to the showcase body side. Since it is suspended and supported by the hook, it does not come off the showcase body even if the inspection lid is pounded.

  However, since the opening and closing part is the lower part of the inspection lid and the opening and closing direction is the direction to lift the inspection lid from the bottom to the top, work with the inspection lid raised while maintaining the equipment in the machine room However, it is necessary to remove the entire inspection lid from the opening of the machine room and place it on the floor.

  On the other hand, in the case of the bottom hook method, the upper part of the inspection lid can be removed against the magnetic force, and the lower part can be rotated forward via the locking hook. Maintenance work can be performed while it is hooked on, but as described above, the upper part of the inspection lid is only fixed to the opening edge by magnetic force, so external forces such as vibration when moving the showcase etc. If it is added to the showcase, there is a risk that the top of the inspection lid may come off.

  The present invention eliminates the inconvenience of the conventional example, and even if an external force such as vibration is applied to the showcase when the showcase is moved, the inspection lid is not easily removed, and the showcase can be moved in a stable state. In addition, the inspection lid can be easily opened and closed at the touch of a button during maintenance of the equipment in the machine room, and the open state can be maintained without completely removing the entire inspection lid from the opening, improving workability during maintenance. An open / close structure of a showcase inspection lid is provided.

In the first aspect of the present invention, a machine room is provided below a showcase body having an opening for putting in and out of goods and formed of a heat insulating wall, and the front opening of the machine room is closed with an inspection lid so as to be freely opened and closed. In the opening / closing structure of the inspection lid of the showcase, a hook portion by a leaf spring formed by bending the middle of the strip-shaped plate body into a substantially triangular shape protrudes from the upper portion of the inspection lid to the rear side, and opens to the front of the machine room An engagement protrusion is provided on the upper edge of the hook portion so that the hook portion is detachably attached. A hook portion is provided on the lower portion of the opening / closing lid, and a receiving portion on which the hook portion is pivotally locked is provided on the machine. The gist is that it is provided at the lower edge of the front opening of the chamber .

  As described above, the opening / closing structure of the inspection lid of the showcase according to the present invention is such that the lower part of the inspection lid is pivotally locked to the opening edge of the machine room and the upper part is locked by a spring-structure hook. Even if an external force such as vibration is applied to the showcase during the movement of the case, the inspection lid does not easily come off, and the showcase can be moved in a stable state. The inspection lid can be easily opened and closed with a single touch just by pressing, and the entire inspection lid can be kept open without being completely removed from the opening, thereby improving workability during maintenance.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a hook part, which is an essential part of an embodiment of an inspection lid opening / closing structure of a showcase of the present invention, and FIG. 2 is an inspection lid showing an embodiment of an opening / closing structure of an inspection lid of the present invention. FIG. 3 is a vertical side view in a state of starting to open, and the entire structure of the showcase is as already described with reference to FIG. 4, and detailed description thereof is omitted here.

  The inspection lid 10 of the present invention also has an opening 9 for opening and closing the opening 9 on the front surface of the machine room 7 formed below the showcase body 1 having an opening 2 for putting in and out the product and formed of a heat insulating wall. The upper part of the opening / closing lid 10 is locked to be freely opened and closed, and the lower part is locked to be freely rotatable.

  As a locking structure that can be opened and closed freely, an angle-shaped locking protrusion 11 is vertically suspended on the side of the showcase body 1 at the upper edge of the opening 9, and rearward from the upper rear side of the inspection lid 10. A hook portion 12 projecting toward and away from the locking projection 11 is provided.

  As shown in FIG. 1, the hook portion 12 is formed by a leaf spring in which a middle portion of a strip-like plate body is bent into a substantially triangular shape and a locking portion 12 a is formed by a folded portion having flexibility. A hook is formed on the knob 12b, and a locking step 12d is formed in a crank shape between the knob 12b and the locking part 12a to be locked to the locking protrusion 11, and the other end is inspected. An attachment portion 12c to the lid 10 was formed, and this attachment portion 12c was fixed to the back surface of the inspection lid 10 with a bolt or the like.

  The knob 12b is protruded toward the front of the inspection lid 10 from an operation hole 13 formed in the inspection lid 10 so as to be operable.

  As the lower locking structure of the lower part, the lower part of the inspection lid 10 is folded inwardly in a U-shape, and a locking hole 14 is formed here to serve as a hooking part, at the lower edge of the opening 9 of the machine room 7. A channel-shaped receiving portion 15 that is rotatably inserted into the locking hole 14 is attached.

  In a state where the inspection lid 10 is closed and the opening 9 is closed, the upper portion of the inspection lid 10 is formed by the locking portion 12a and the locking step portion 12d of the hook portion 12 as shown in FIG. The front surface of the locking step portion 12d that protrudes to the rear surface side of the upper surface abuts against the rear surface of the locking protrusion 11 and prevents the inspection lid 10 from falling forward.

  In this state, the knob 12 b protrudes forward from the operation hole 13.

  On the other hand, a lower portion of the inspection lid 10 is rotatably inserted into a locking hole 14 attached to the inspection lid 10 side with a receiving portion 15 attached to the showcase body 1 side.

  Therefore, when the showcase is transported in this state, the hook portion 12 is locked to the locking protrusion 11 at the upper portion of the inspection lid 10 and the forward tilt is prevented, and the receiving portion 15 is positioned below the inspection lid 10. Since it is inserted into the locking hole 14, there is no possibility that the inspection lid 10 is detached from the opening 9 even if vibration accompanying the movement is applied to the inspection lid 10.

  When the machine in the machine room 7 is inspected, the opening 9 can be released by pressing the knob 12b downward against the elasticity of the locking part 12a as shown in FIG. 12d moves downward along the locking projection 11 and comes off the locking projection 11. As a result, the upper part of the inspection lid 10 falls forward.

  At this time, since the lower portion of the inspection lid 10 is in a state in which the receiving portion 15 is inserted into the locking hole 14, the locked state is not released, and the locking portion between the receiving portion 15 and the locking hole 14 is released. With the fulcrum as a fulcrum, the upper part of the inspection lid 10 pivots forward and downward, and the opening 9 is released.

  Therefore, it is possible to open the inspection lid 10 with the lower part attached to the lower edge of the opening 9 without removing the entire inspection lid 10.

  To close the inspection lid 10 after the inspection work is completed, if the inspection lid 10 is pushed backward, the locking portion 12a is pushed backward along the lower edge of the locking protrusion 11 against the elasticity of the spring, The locking step 12d is returned to the back side of the locking projection 11 by the elasticity of the spring. At this time, the operation by the knob portion 12b is unnecessary, and the hook portion 12 is automatically locked only by the operation of pushing the inspection lid 10 backward and closing it.

It is a perspective view of the hook part which is the principal part which shows embodiment of the opening / closing structure of the inspection lid of the showcase of this invention. It is a vertical side view of the state which closed the inspection cover which shows embodiment of the opening / closing structure of the inspection cover of the showcase of this invention. It is a vertical side view of the state of the opening start which shows embodiment of the opening / closing structure of the inspection lid of the showcase of this invention. It is a whole perspective view of a showcase.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Showcase main body 2 Opening 3 Partition plate 4 Goods storage 5 Fluorescent lamp 6 Illumination light switch 7 Machine room 8 Refrigeration unit, electrical box 9 Opening part 10 Inspection lid 11 Locking protrusion 12 Hook part 12a Locking part 12b Knob part 12c Mounting portion 12d Locking step portion 13 Operation hole 14 Locking hole 15 Receiving portion

Claims (2)

Opening / closing structure of the inspection lid of the showcase in which a machine room is provided below a showcase body having an opening for putting in and out of the product and formed of a heat insulating wall, and the front opening of the machine room is opened and closed with an inspection lid. , A hook portion made of a leaf spring formed by bending the middle of a strip-shaped plate body into a substantially triangular shape protrudes from the upper part of the inspection lid to the back side, and the hook portion is attached to and detached from the upper edge of the front opening of the machine room. A locking protrusion that can be freely locked is provided , a hook is provided at the bottom of the inspection lid, and a receiving portion that is rotatably locked by the hook is provided at the lower edge of the front opening of the machine room. The opening / closing structure of the inspection lid of the showcase. The hook portion includes a mountain-shaped folded portion that is bent when the knob portion at the end protruding forward of the inspection lid is pressed downward, and a hook formed in a crank shape between the folded portion and the knob portion. The opening / closing structure of the showcase inspection lid according to claim 1, wherein the opening / closing structure is formed by a stop portion.

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