JPH0627608B2 - Storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a storage having a door provided with an electric heater.

(B) Prior Art In U.S. Pat. No. 3,697,723, drawings and drawings are provided with a rotatable transparent door which is openable and closable on the front surface of a storage body, and a lead wire extending from the electric heater provided in the door to the storage body. Is drawn out to an opening on the front surface to form a drawn-out portion, and the entire drawn-out portion is bent to reduce the twist of the lead wire when the door is opened and closed.

(C) Problems to be Solved by the Invention According to the above-mentioned conventional technique, the root of the lead-out portion of the lead wire, that is, the portion that penetrates the door is always in contact with the door, so that the door is opened and closed each time. The drawer part is deformed between the door and the storage main body, and the stress due to this deformation is added to the penetration part of the drawer part, the penetration part is rubbed by the friction with the door, and the number of times of opening and closing the door is increased. Thousands to tens of thousands of times have problems such as cracks in the penetration part and disconnection from the penetration part, and the penetration part is exposed to the cold air in the low temperature area when the door is closed, and warmed up when the door is opened (outside air ), There is also a problem that when the door is opened, dew adheres to the penetrating part to cause electric leakage.

(D) Means for Solving the Problems In order to solve the above problems, the present invention provides a door (7) equipped with an electric heater (19) for dew prevention, and the door to the storage body (1). A pair of upper and lower hinges (10) and (11) that pivotally rotate with respect to each other,
A drawer part (22A) connected to the electric heater (19), drawn out from the door (7) to the outside, and extending to the storage body (1).
A lead wire (22) having a lead wire (22) and a through hole (31) which is attached to the door (7) and accommodates a penetrating portion (22B) of the lead wire (22) which penetrates through the door and is drawn out to the outside, A guide path (32) for guiding the through portion (22B) of the lead wire (22) from the outside to the through hole
And a stopper (30) having an elastic pressing piece (33) for pressing one part of the withdrawal portion (22A) against the door (7) so that a flexure (22C) is formed in the withdrawal portion (22A). ) And a storage is provided.

(E) Action According to the embodiment, the retainer (30) for retaining the lead wire (22) on the door (7) is a through hole (31) through which the penetrating portion (22B) of the lead wire (22) passes.
And a guideway (3
2) and an elastic pressing piece (33) that elastically presses one part of the withdrawal part (22A) to the door (7), the penetrating part (2
2B) and the metal frame cover (17) are prevented from coming into contact with each other at the same time as a bush and a stopper to stop the withdrawal part (22A), and after the door (7) is assembled, the door (7) Since it can be attached to the drawer part (22A), the degree of sag (22C) of the drawer part (22A) is adjusted to reduce the sagging of the drawer part (2C).
2A) does not interfere with the opening and closing of the door (7), and the elastic pressing piece does not deform the withdrawal part (22A) accompanying the opening and closing of the door (7).
It is possible to prevent the influence of the deformation from reaching the penetrating portion (22B) by fastening with the (33) and the flexure (22C).

(F) Example An example of the present invention will be described below with reference to the drawings.
(1) shown in the figure is a storage body such as a refrigerated showcase, an illumination room (2) equipped with a fluorescent lamp (not shown), a storage room (3), and a cooling device (not shown) for cooling the storage room. And a machine room (4). The storage chamber (3) has four hollow metal struts (5), each of which has its peripheral side surface erected at four corners, a transparent wall (6) arranged on three side surfaces, and a remaining one side surface. It is composed of three transparent doors (7), (8), and (9). Each transparent door (7) (8) (9) is a storage main body with a pair of upper and lower metal hinges (10) (11) fixed to the pillar (5).
By being connected to (1), it is pivotable in the left-right direction, and the opening for opening and closing the product in the storage chamber (3) is closed so that it can be opened and closed.

Each of the transparent doors (7), (8) and (9) has two transparent plates (12) and (13) made of transparent glass as shown in FIG. A multi-layer transparent plate (15) consisting of an annular spacer (14) that forms a heat insulating space therebetween, and a rectangular annular resin frame (16) fitted to the peripheral edge of this multi-layer transparent plate.
And a rectangular stainless steel rectangular frame cover (17) covering the surface of the frame, which is connected and connected to the hinges (10) and (11) by a fastener (18) such as a tapping screw. (19) is an electric heater for dew prevention provided on the surface of the transparent plate (12) located on the outside of the storage room, that is, on the side of the warm zone of the transparent plate (12) (13), that is, on the back surface, Electrodes (20) (21) formed by coating the back surface of the transparent plate (12) with a conductive material such as tin oxide by a method such as vacuum deposition and provided along both left and right edges as shown in FIG. A lead wire (22) is connected to. The frame (16) is obtained by extruding a resin such as vinyl chloride, and includes a front wall (23), a back wall (24) and a partition wall (25) for connecting and connecting the front and back walls. ) And the above-mentioned multi-layer transparent plate (1
5) An inward fitting groove (26) for receiving the peripheral edge of (5) and an outward direction for accommodating a part of the lead wire (22) extending from the electrodes (20) (21) to the outside through the spacer (14). And a storage groove (27) is formed in the partition wall (25).
Two ridges (28) and (29), which are divided into A), (27B) and (27C), are formed. Both of these ridges (28) and (29) are inclined from the partition wall (25) in a direction in which the distance between them extends, and the tips of each of the ridges (28) and (29) are front walls (23).
Or because of the close proximity to the back wall (24), the front and rear compartments (27A) (27C) that house the lead wires (22) have narrow frontages,
The central compartment (27B) for accommodating the screw part (18A) of (18) has a wide frontage. Therefore, the movement of the lead wire (22) in the storage groove (27) in the front-rear direction is restricted by the corresponding protrusions (28) (29) and the hinges (10) (11) and the frame with the stopper (18). When connecting and connecting the cover (17), the lead wire (22) does not enter between the screw part (18A) and the partition wall (25) and the lead wire (22) is damaged by the stopper (18). Can be avoided.

(30) is attached to the frame cover (17), the lead-out portion (22A) of the lead wire (22) that is pulled out from the storage groove (27) of the frame (16) through the door (7) to the outside. With a resin stopper to hold,
As shown in FIGS. 1 to 3, a through hole (31) through which the penetrating portion (22B) of the lead wire (22) extending from the storage groove (27) to the outside is inserted,
A guide path (3) that guides the penetration part (22B) from the outside to this through hole
2) and an elastic pressing piece that presses this drawn-out portion on the frame cover (17) so as to form a bend (22C) in a part of the drawn-out portion (22B).
(33), the through hole (31) and the guide path (32) are defined, and are inserted into the drawing hole (35) formed in the frame cover (17) and communicating the storage groove (27) with the outside. And a protrusion (34). This stopper (30) includes a multi-layer transparent plate (15), a frame (16) and a frame cover (1).
It is a so-called retrofit component that is attached to the frame cover (17) with screws (36) such as screws after assembling 7) and the transparent door (7), and the lead wire (22) penetrating portion (22B). The guide way
After passing through the through hole (31) from (32), it is attached to the frame cover (17), and the lead wire (22) is slightly bent at the lead-out portion (22A).
(22C) is held and one part of the drawn-out part (22A) is elastically pressed to the frame cover (17) by the pressing piece (33), so that the penetrating part (22B) of the lead wire (22). The wiring from the end to the connection end to the electric heater (19) is wired in the door (7). still,
The lead wire (22) is covered with an electrically insulating tube (37) from a part in the middle of the storage groove (27) to a part extending into the storage body (1).

According to this structure, the lead-out portion (22A) of the lead wire (22) is always located outside, that is, in a warm zone regardless of whether the door (7) is opened or closed. The temperature of the part (22A) does not change, so the part that is pulled out when the door is opened
(22A) Condensation can be avoided.

In addition, the stopper (30) that holds the lead wire (22) to the door (7) is provided with a through hole (31) through which the penetrating portion (22B) of the lead wire (22) passes, and a through hole from the outside. A guideway (32) that guides the part (22B) and an elastic stopper piece that elastically presses one part of the drawer part (22A) to the door (7).
Due to the formation of (33), it simultaneously acts as a bush that prevents contact between the penetrating part (22B) and the metal frame cover (17) and as a stopper that holds the drawer part (22A) in place. , Door again
Since it can be attached to the door (7) after assembling (7), the degree of sag (22C) of the drawer part (22A) is adjusted to reduce the sagging of the drawer part and the drawer part (22A) is the door. It is possible to prevent the opening and closing of (7) from being hindered, and the deformation of the withdrawal part (22A) due to the opening and closing of the door (7) is prevented by elastic pressing pieces (33) and flexure.
(22C) can be used to prevent the deformation from affecting the penetrating portion (22B).

(G) Effect of the Invention According to the above-described present invention, the pressing tool for pressing the lead wire to the door has a through hole for passing the through portion of the lead wire and a guide path for guiding the through portion from the outside to the through hole. , Because of the formation of an elastic pressing piece that elastically presses one part of the drawn-out portion to the door,
Simultaneously performs the function of a bush that prevents the contact between the penetration part and the door and the function of a stopper that presses the drawer part.
Since the stopper can be used effectively and can be attached to the door after assembling the door, the degree of bending of the drawer part can be adjusted to reduce the drooping of the drawer part so that the drawer part does not interfere with the opening and closing of the door. It is possible to smoothly open and close the door, and it is possible to prevent the deformation of the withdrawal part accompanying the opening and closing of the door with the elastic pressing piece and the flexure so that the influence of the deformation can be prevented from reaching the penetration part. It is possible to eliminate the damage to the lead wire due to the deformation of the drawn portion.

[Brief description of drawings]

Each of the drawings shows an embodiment of the storage of the present invention, FIG. 1 is a sectional view taken along the line AA in FIG. 2, FIG. 2 is a perspective view of a main part, and FIG. 3 is an overall perspective view of a stopper, and FIG. 5 is a sectional view taken along the line BB in FIG. 5, FIG. 5 is a front view of a main part of the door, and FIG. 6 is an overall perspective view. (7) …… door, (10) (11) …… hinge, (19) …… electric heater, (22) …… lead wire, (22A) …… drawing part, (22B) ……
Penetration part, (22C) ... deflection, (30) ... stopper, (31) ...
Through hole, (32) …… Guideway, (33) …… Elastic stopper.

Continuation of the front page (56) References Actual public 45-12064 (JP, Y1) Actual public 46-16347 (JP, Y1) Actual public 50-2128 (JP, Y2)

Claims (1)

[Claims] 1. A door provided with a dew-proof electric heater, a pair of upper and lower hinges for pivotably supporting the door with respect to a storage main body, and the door connected to the electric heater to the outside. A lead wire that has a lead-out portion that is pulled out and extends to the storage body; and a through hole that is attached to the door and that accommodates a penetrating portion of the lead wire that extends through the door and is pulled out to the outside.
A guide path for guiding the penetrating portion of the lead wire from the outside into the through hole; and a stopper having an elastic pressing piece for pressing one portion of the drawn-out portion against the door so that a bend is formed in the drawn-out portion. A storage equipped with.