JPH0375481A - Electric refrigerator - Google Patents

Abstract

PURPOSE:To take in and out an article to be refrigerated without fail even in a relatively narrow room by inserting a flexible and heat insulating door plate with restoring resiliency through slot frames provided in the upper and lower side edges of an opening part. CONSTITUTION:A flexible restoring resiliency door plate 17 is smoothly moved and contained into a container space 6 formed in the wall surface of a right refrigerator body 1. The door plate 17 is smoothly flexed upon passing through a front right corner of the refrigerator, and allowed to pass through that corner. It is thereafter restored to an original shape by its restoring resiliency and allowed to pass through the inside of the container space 6 to open the front surface of the refrigerator body 1. The upper and lower edges of the door plate 17 are inserted into slot frames 4, 5 provided in the upper edge of a front opening part 3 of the body 1, whereby they are movably contained in the right and left container spaces 6, 7 provided parallely through the slot frames 4, 5. Hereby, a product to be refrigerated can be taken in and out without fail even into a relatively narrow room.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to improvements in electric refrigerators, and more specifically,
This invention relates to an electric refrigerator with an improved door plate opening/closing structure.

(Prior art) Conventional electric refrigerators, whether for commercial or home use, are of the type in which the door is opened and closed back and forth to take in and take out refrigerated items. ,
A well-known type is a type in which refrigerated items are taken in and out by moving drawers arranged in several rows back and forth.

(Problem to be Solved by the Invention) However, all of the above-mentioned conventional electric refrigerators require space for opening and closing the door or drawer, and the need for this space is limited by the size of the room. The current situation is that it is a significant hindrance in narrow spaces and brings various inconveniences to daily life.

The present invention was researched and developed with the aim of solving the above problem, and it eliminates the need to provide a space in front of the refrigerator for opening and closing the refrigerator door, so even in a relatively small room. The main object is to provide an electric refrigerator equipped with a special door opening/closing structure that allows for taking in and out of refrigerated items without any trouble.

(Means for Solving the Problems) In the present invention, as means for solving the above problems,
A bendable and heat-insulating door plate with restoring elasticity is inserted into the front opening of the electric refrigerator body through groove frames provided at the upper and lower edges of the opening, and at least one side of the body is fitted. A storage space for the door plate is formed on the wall surface, the storage space and the groove frame are communicated with each other, and the door plate is configured to be freely inserted into and removed from the storage space, so that the front opening of the main body can be opened and closed. We developed and adopted an electric refrigerator with these characteristics.

(Function) Since the electric refrigerator according to the present invention is configured as described above, its door plate can be electrically or manually adjusted as shown in FIGS. When moving to the right in Figures 1 and 5, the flexible door plate with restoring elasticity
It is smoothly moved and stored in the storage space formed on the wall of the refrigerator main body on the right side as viewed in the figure. That is, when the door plate passes through the front right corner of the refrigerator, it is bent easily due to its flexibility and passes through the corner, and after passing the corner, it returns to its original flat shape due to its elasticity. To smoothly move within a storage space and open the front of the refrigerator body.

Furthermore, when the door plate is moved electrically or manually in the opposite direction to that described above, the door plate moves smoothly due to the same material characteristics as described above to cover and close the front opening of the main body.

Therefore, according to the electric refrigerator of the present invention, the door plate opens and closes the front opening of the refrigerator main body through a path provided along the circumference of the main body. Sometimes without requiring special space,
Even in a relatively small room, items that need to be refrigerated can be taken in and out without any problems.

In addition, if an electromagnet with restoring elasticity and flexibility is provided on the inner periphery of the door plate, and if the electromagnet is configured to be energized and excited when the opening is covered or closed with the door plate, the door plate Since it comes into close contact with magnetic metal such as iron around the open part of the main body and seals the open part, its heat insulating properties have the effect of blocking heat exchange inside and outside the refrigerator and improving the refrigeration effect.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

In the figure, 1 is an iron electric refrigerator body whose internal structure is not shown, and 2 is an exterior member covered at a required distance from the outside of the body 1. The front surfaces of the body 1 and the exterior member 2 are A wide open front opening 3 is provided.
Reference numeral 4.5 denotes a groove frame provided on the upper and lower edges of the front opening, and in this embodiment, the groove frame 4.5 communicates with the groove frame 4.5, and the right and left sides between the main body 1 and the exterior member 2 and the rear side are connected to the groove frame 4.5. A narrow storage space 6.7 for a door plate, etc., which will be described later, and a slightly wide installation space 8, for a motor, etc., which will be described later, are connected to the side surface.
9...9 is the lower groove frame 5 and the storage space 6.7
Door plate moving trochanters (1), which will be described later, are arranged on the bottom side of the groove frame 5 and parallel to the narrow width direction of the storage space 6.7, respectively.
0.10 indicates the guide trochanters of the door plate, which will be described later, which are located in a corner close to both sides of the front opening part 3 and arranged vertically on the side of the refrigerator body 1 of the storage space 6.7. ing. Further, 11 is a forward/reverse rotation motor arranged in a part of the right corner of the wide installation space 8, 12 is a speed change gear mechanism (including a clutch type speed change gear mechanism) provided on the motor shaft, and 13 is a motor shaft. and a drive rotation shaft coaxial with the drive rotation shaft 13. Drive gears 14 having the same diameter and length are provided at the upper and lower positions of the drive rotation shaft 13 at a required interval, and a wide installation space 8 is provided. A driven gear 16 having the same diameter and length as the drive gear 14 is also provided on the driven rotating shaft 15 which is vertically supported on the left corner of the drive gear 14.

Next, 17 is a door plate, which is the front opening part 3 of the main body 1.
For example, as schematically shown in FIGS. 6 and 7, aluminum evaporation @b of the required thickness is applied to the inner surface of the foamed polyethylene plate a of the required thickness. A flexible plastic decorative board d also having restoring elasticity is further integrally layered on the outer surface of the layered flexible heat insulating material C having restoring elasticity, and the above-mentioned heat insulating material C It is constructed by integrally layering flexible electromagnets e, which also have restoring elasticity, on the four peripheries of the back surface.

Therefore, as described above, the door plate 17, which is provided with restoring elasticity, bendability (flexibility), and good heat insulation properties, has a structure as shown in FIGS. 3 and 4. , the door plate 17 is installed in the groove frame 4.5 provided on the upper and lower edges of the front opening 3 of the main body 1.
By fitting the upper and lower edges of the groove frame 4.5, the storage space 6.7 can be moved and accommodated in the right and left storage spaces 6.7 which are connected to the groove frame 4.5. Further, as described above, the door plate 17 is movably installed between the main body 1 and the exterior member 2.
Both side edges of the chain 18.
The electric refrigerator according to the present invention is constructed by meshing 18 with the drive gear 14 and the driven gear 16, respectively. In the figure, 19 is a switch mechanism provided in the switch box 20, which has a plurality of switch buttons. When one of the switch buttons SL and 32 is turned 0NSOFF, a well-known energization and energization cutoff circuit (not shown) starts and stops the forward/reverse rotation motor 11 and energizes and cuts off the energization to the electromagnet e in a timely manner. Further, in the figure, LSI and LS2 are configured to move the door plate 17.
21 indicates a limit switch that performs operations such as stopping the forward/reverse rotation motor 11 when either end of the door collides with the door plate 17, and reference numeral 21 indicates a handhold portion recessed in the surface of the door plate 17 for manual opening/closing. It shows.

Next, based on the embodiment configured as described above, the door plate 1
The electrical switching operation of No. 7 will be explained.

First, as shown in FIG. 4, when the entire front opening 3 of the main body 1 is covered and closed by the door plate 17, the left edge of the door plate 17 is in contact with the limit switch LS2, and the Although the reverse rotation motor 11 is stopped, the circuit is configured (not shown) so that the electromagnet e of the door plate 17 is energized.
The door plate 17 is brought into close contact with the periphery of the front opening 3 of the main body 1 by the electromagnet e, thereby sealing the opening 3.

Next, in this state, when the switch button S1 is pressed to start the operation, the power supply to the electromagnet e of the door plate 17 is cut off, and the circuit configuration (not shown) is configured such that power is supplied to the motor 11 to rotate the motor to the left. Since motor 11
rotates to the left, and the transmission gear mechanism 12, drive rotation shaft 13, drive gear 14, driven rotation shaft 15, driven gear 16, and chain 1
As shown in FIGS. 1 and 2, the door plate 17 is moved into the storage space 6 on the right side as viewed in the drawings, and the front opening 3 of the main body 1 is opened. Initially, when the right edge of the door plate 17 further moves until it collides with the limit switch LSI and the front opening portion 3 is fully opened, the motor 11 is stopped by the limit switch LSI.

In addition, the movement of the door plate 17 into the accommodation space 6 is as follows:
The characteristics of the door plate itself described above, the cooperation of the guide trochanter 10 and groove frame 5 provided in a part of the corner at the entrance of the accommodation space 6, and the guide trochanter 9 provided on the bottom side of the accommodation space 6. The action is extremely smooth.

Furthermore, if the front opening 3 of the main body 1 is to be covered or closed with the door plate 17, it is sufficient to press the switch button S2, and when the switch button S2 is pressed, the motor 11 is energized and the motor is rotated clockwise. Due to the circuit configuration (not shown), the motor 11 rotates clockwise, and the door plate] 7 is connected to the groove frame provided at the upper and lower edges of the front opening 3 of the main body 1 from inside the storage space 6 through the above-mentioned transmission member. 4. Move the entire front opening part 3 to the door plate 1 side.
At the same time, the left edge of the door plate 17 collides with the upper limit switch S2, thereby stopping the motor 11 and energizing the electromagnet e of the door plate 17. is brought into close contact with the periphery of the front opening 3 of the main body 1 to seal the opening 3 (fourth
See diagram. 〉In order to move the door plate 17 into the accommodation space 7 on the left side as seen in the figure and open/close the front opening part 3 with the door plate 17, the limit switches LSI and LS2 should be placed in the opposite positions as described above. By making appropriate design changes to the position and number of limit switches, it is possible to configure the door plate 17 to be moved to the right or left housing space 6.7 at any time. It is something.

Further, S3 is a switch button for opening/closing an electric circuit (not shown) for stopping and rotating the forward/reverse rotation motor 11 at any time. The degree of opening of the refrigerator can be appropriately adjusted within a necessary range, and wasteful release of cold air inside the refrigerator can be prevented.

Further, the opening/closing operation of the front opening part 3 by moving the door plate 17 is performed via a handle part 21 recessed in the surface of the door plate 17.
This can also be achieved by manually moving the door plate to the right or left side. In order to perform this manual opening and closing more easily, it is necessary to remove the chain 18 from the door plate 17, or
Alternatively, the rotary shaft of the motor 11 and the drive rotary shaft 13 may be separably connected by a clutch member, and the clutch connecting portion may be separated when the clutch is opened or closed manually.

The main embodiments of the present invention have been described in detail above, but the present invention is a so-called two-panel door in which a plurality of door plates are arranged vertically and horizontally.
This can naturally be applied to electric refrigerators equipped with

Further, the structure of the door plate 17 is not limited to that of the above embodiment. For example, the plastic decorative plate d may be made of a material with excellent heat resistance and cold resistance, and the heat insulating material C may be made of a material with excellent heat resistance and cold resistance. Various materials can also be used, and in short, various materials and laminated structures can be used as long as they can provide the door plate 17 with flexibility and heat insulation with the required resilience. .

In addition, if appropriate reinforcement processing is applied to the bottom surface of the door plate 17 and other rubbing parts within a range that does not impede its flexibility,
Its durability can be improved.

Furthermore, although the materials of the moving trochanter 9 and the guide trochanter 10 can be freely selected, it is preferable to use reinforced hard plastic for the core material of the trochanter, and to make the surface layer of rubber or plastic with appropriate elasticity. It is preferable to do so in terms of durability and sound deadening.

(Effects of the Invention) The present invention provides for fitting a door plate having flexibility and heat insulation properties with restoring elasticity to the front opening of an electric refrigerator body through groove frames provided at the upper and lower edges of the opening. At the same time, a storage space for the door plate is formed on at least one side wall surface of the main body, and the storage space and the groove frame are communicated with each other, and the door plate is configured to be freely inserted into and removed from the storage space to open the front side of the main body. This relates to an electric refrigerator that is characterized by being configured so that its parts can be opened and closed, and the door plate is opened and closed in the above-mentioned state. There is no need to provide the necessary space on the front of the refrigerator to open and close the door plate or to put in and take out the drawers, so even if the refrigerator is installed in a relatively small room,
It is convenient to put in and take out items that need to be refrigerated without any trouble, and there is no risk of injury from hitting your body with the door plate or drawer that protrudes from the front of the refrigerator, unlike in conventional refrigerators. This is a truly useful invention that has various effects such as being able to move the door plate and opening and closing the refrigerator smoothly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially omitted front view with the door plate half open, and FIG.
Fig. 3 is a partially omitted sectional view taken along line A-A in Fig. 1, Fig. 4 is a sectional view taken with the opening section covered and closed with a door plate. Fig. 5 is an enlarged sectional view taken along line C-C in Fig. 1 with the door plate fully open, Fig. 6 is an inside view of the door plate, and Fig. 7 is an enlarged sectional view of the refrigerator. FIG. 6 is an explanatory diagram showing a state in which the door plate is attracted to the periphery of the open portion of the main body. (Explanation of symbols) 1...Electric refrigerator body, 2...Exterior member, 3...Front opening, 4, 5...Groove frame 6...Storage space 17...Door plate. (Explanation of symbols) 1...Electric refrigerator body, 2...Exterior member, 3...Front opening, 4, 5...Groove frame 6...Storage space 17...Door plate. Figure 5 Figure Figure 7 Contents of the amendment November 9, 1990 1, Description of the case 1990 & 1990 Patent Application No. 211890 2, Name of the invention Electric refrigerator 3, Person making the amendment Relationship to the case Special Patent applicant address: 405 City Inn Sekiguchi, 2-2-17 Kokubunji, Kita-ku, Osaka City Inn Sekiguchi, 2-2-17, Kita-ku, Osaka Although not described in the above, it is also applicable to electric refrigerators in which groove frames are provided on the left and right edges of the front opening of the electric refrigerator body so that the door plate can be opened and closed in the vertical direction.'' Masu. 4゜Address Address: Nijimoto Building, 1-7-21 Nishihonmachi, Nishi-ku, Osaka 550 Telephone: (06) 531-5575 Column 6 of "Detailed Description of the Invention" in the Specification, Contents of Amendment

Claims (3)

[Claims] (1) A flexible and heat-insulating door plate with restoring elasticity is inserted into the open front part of the electric refrigerator body through groove frames provided on the upper and lower edges of the open part, and A storage space for the door plate is formed on at least one side wall surface, the storage space and the groove frame are communicated, and the door plate is configured to be freely inserted into and removed from the storage space, so that the front opening of the main body can be opened and closed. An electric refrigerator characterized by: (2) The door plate is configured to be electrically movable forward and backward by a switch mechanism via a transmission member such as a chain, a drive gear, a motor, etc., and the front opening portion of the main body is configured to be electrically openable and closable. The electric refrigerator according to claim (1). (3) The electric refrigerator according to claim (1), wherein the door plate is configured to be manually movable and the front opening portion of the main body is configured to be manually openable and closable.