JPH1137636A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easy pushing-in of a cart loading heavy matter and also smooth putting-in-and-out of the cart, to enable prevention of collapse or the like of the matter loaded on the cart and also formation of a base wall in an almost prescribed thickness and to enable maintenance of heat insulating properties of a heat insulating box body. SOLUTION: A slope member 26 is connected to a heat insulating box body 2 by bringing a connecting face 26B thereof into contact with a front face 5A of a base wall 5 and by screwing it to the front face 5A of the base wall 5 by a screw 27 through the connecting face 26B. Besides, the upper end of the front face 5A of the base wall 5 and the rear end of a slope slant 26A are formed to be equal in height practically. The lower edge part of an opening 3 on the upper side of the base wall 5 is formed to be a lower slant 5B of the opening ascending gradually inward from the end edge of the opening 3, while the rear end of the lower slant 5B of the opening is positioned on the side of the opening 3 from a rear wheel 32A of a cart 31, and the base wall 5 inside the rear end of the lower slant 5B of the opening has a prescribed thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called cart-in type refrigerator constructed so that a cart (cart) can be inserted into and removed from an insulated box, and more particularly to maintaining heat insulation of the insulated box and loading heavy objects. The present invention relates to a cart-in type refrigerator capable of easily taking a cart in and out.

[0002]

2. Description of the Related Art Various cart-in type refrigerators have been proposed. For example, in a cooling storage described in Japanese Utility Model Publication No. 61-7499, a slope (cart guide plate) for guiding a cart is continuously attached to a front surface of a bottom wall at a lower portion of an opening of a heat insulating box. This slope is
It is inclined so that it gradually descends as it moves away from the bottom wall. Thus, when the cart is pushed into the storage, the step from the floor surface to the upper surface of the bottom wall can be smoothly overcome. In addition, a lower packing projecting below the lower edge of the opening of the heat insulating box is attached to a lower edge inside the heat insulating door, and a gap between the heat insulating door and the lower edge of the opening when the heat insulating door is closed is closed. This prevents leakage of cool air from inside the refrigerator and intrusion of dust and the like from the outside. .

[0003] The cooling storage described in Japanese Patent Application Laid-Open No. Hei 9-14818 has a heat insulating box having an opening on the front surface,
An insulating door rotatably supported by the heat-insulating box and closing the opening so as to be able to close the opening, a bogie guiding slope continuously provided on a front surface of a bottom wall below the opening of the heat-insulating box; And a lower packing attached to the inside of the lower edge,
The upper surface of the slope at the connection with the bottom wall is lower than the upper surface of the bottom wall, and the lower packing is closely attached to the front surface of the bottom wall. Thereby, by setting the step between the upper surface of the slope and the upper surface of the bottom wall to a height at which the wheels of the truck can get over, the bogie can be pushed into the refrigerator, and between the slope and the upper surface of the bottom wall. The lower packing is tightly attached to the front surface of the bottom wall to seal the lower edge of the opening, thereby preventing cooling leakage.

[0004]

However, in the cooling storage described in Japanese Utility Model Publication No. 61-7499, when the heat insulating wall is made thicker in order to improve the heat insulating property of the heat insulating box, the slope for guiding the bogie is used. However, there is a problem that it becomes difficult to push a heavy load truck into the vehicle. In addition, if the slope for guiding the bogie is made gentler to facilitate the pushing of the heavy load bogie, the bottom wall thickness of the heat-insulating box body will not be sufficient and the heat insulation will be reduced. There is a problem that the required installation area is increased because the front-rear length is long. Furthermore, since the lower packing attached to the inside of the lower edge of the cross-section door moves to the opening side in contact with the upper surface of the slope, dust on the slope is pushed into the refrigerator, which is unsanitary. There's a problem.

Further, in the cooling storage described in Japanese Patent Application Laid-Open No. 9-14818, since a step is formed between the upper surface of the slope and the upper surface of the bottom wall, there is a problem that it becomes difficult to push a heavy load truck. There is a problem that the load carried on the bogie easily collapses due to the vibration when the vehicle climbs over the step. In addition, when the slope for guiding the bogie is made gentle and the step is lowered to facilitate the pushing of the heavy load bogie, the thickness of the bottom wall of the heat insulating box becomes insufficient and the heat insulating property becomes poor. Is reduced.

Accordingly, the present invention has been made to solve the above-described problem, and has an inclined portion which rises inward at an opening edge of the upper surface of the bottom wall at an angle continuous with the bogie guiding slope member. By providing, the slope angle of the slope can be formed gently, and it becomes possible to easily push in the heavy load trolley, and it is possible to smoothly put in and out the trolley, and the load of the trolley load collapses. It is an object of the present invention to provide a refrigerator capable of preventing such problems. It is another object of the present invention to provide a refrigerator capable of forming the bottom wall thickness to a substantially predetermined thickness and maintaining the heat insulating property of the heat insulating box. It is another object of the present invention to provide a refrigerator capable of preventing dust and the like from entering the interior of the refrigerator by providing an inclined portion that rises inward at the opening edge of the upper surface of the wall. In addition, the lower end edge of the opening side end packing piece of the packing member attached to the lower edge inside of the heat insulating door abuts on a position near the bottom wall front surface, so that the inside of the compartment from the connection gap between the slope and the bottom wall front surface is formed. To prevent dust from leaking on the slope member between the lower end edge of the heat-insulating door side packing piece and the lower end edge of the opening side end packing piece of the packing member. It is an object of the present invention to provide a refrigerator capable of preventing dust and the like from being pushed into the refrigerator and maintaining a sanitary condition in the refrigerator.

[0007]

According to a first aspect of the present invention, there is provided a refrigerator having a heat insulating box having an opening on a front surface thereof and a rotatably supported pivotally supported by the heat insulating box. A heat insulating door for opening and closing the opening, a trolley guiding slope member having a first inclined surface connected to a front surface of a bottom wall of the heat insulating box, and a packing attached to a lower edge inside the heat insulating door And a bottom wall of the heat-insulating box, the bottom wall of the heat-insulating box being continuous with the first sloped surface of the slope member, and being upwardly inclined from the front surface of the bottom wall toward the inside of the heat-insulating box. It is characterized in that two inclined surfaces are formed.

[0008] In the refrigerator according to the first aspect having the above-described features, a heat-insulating door that opens and closes the opening is pivotally supported by a heat-insulating box having an opening on the front surface. Further, a packing member is attached inside the lower edge of the heat insulating door, and a gap between the heat insulating door and the lower edge of the opening is closed.
A slope member having a first inclined surface for guiding a bogie is continuously provided on a front surface of a bottom wall of the heat-insulating box, and a height of an upper end of a connection portion of the slope member with the front surface of the bottom wall is lower than the bottom wall. It is formed substantially equal to the height of the upper end of the front surface. In addition, the opening side edge of the upper surface of the bottom wall is inclined upward as it goes inward from the opening at an angle continuous with the slope member.
It is formed on an inclined surface. Accordingly, by providing a second inclined surface which rises inward at an angle continuous to the first inclined surface of the bogie guiding slope member at the opening side edge of the upper surface of the bottom wall, the first inclined surface of the slope member is formed. The inclination angle can be formed gently, and it becomes possible to easily push in the heavy load truck, and also it is possible to smoothly put the load truck in and out, and to prevent the load of the truck load from collapsing. Will be possible. Also, the bottom wall thickness on the opening side gradually decreases to the upper end height of the slope member, but since the bottom wall thickness on the inner side from the end position of the second inclined surface can be formed to a substantially predetermined thickness, the heat insulating box body It is possible to maintain the heat insulating properties of In addition, since the opening edge of the upper surface of the bottom wall is formed on the second inclined surface that is lowered outward, it is possible to prevent dust and the like from entering the interior of the refrigerator.

The refrigerator according to a second aspect of the present invention provides a heat insulating box having an opening on a front surface, an insulating door rotatably supported by the heat insulating box and closing the opening so as to be openable and closable. A refrigerator comprising: a carriage guiding slope member having a first inclined surface continuously provided on a front surface of a bottom wall of a heat insulating box; and a packing member attached to a lower edge inside the heat insulating door. And a wheel guide groove provided on the bottom wall for guiding the wheels of the bogie. The wheel guide groove is continuous with the first inclined surface of the slope member, and is formed of a heat-insulating box from the front of the bottom wall. It is characterized in that a second inclined surface that is inclined upward as it goes inward is formed.

[0010] In the refrigerator according to the second aspect of the present invention, an insulating door having an opening on the front surface is rotatably supported by an insulating door for closing the opening so that the opening can be opened and closed. Further, a packing member is attached inside the lower edge of the heat insulating door, and a gap between the heat insulating door and the lower edge of the opening is closed.
In addition, a slope member for guiding the bogie is connected to the front surface of the bottom wall of the heat-insulating box, and the height of the upper end of the slope member connected to the front surface of the bottom wall is lower than the upper end of the front surface of the bottom wall. Is formed. In addition, a wheel guide groove for guiding wheels of the bogie is formed at an opening edge of the bottom wall of the heat insulating box,
The opening-side lower end of the wheel guiding groove is formed at a height substantially equal to the upper end of the first inclined surface of the slope member, and the bottom surface of the wheel guiding groove is continuous with the first inclined surface of the slope member. A second inclined surface facing upward from the opening at an angle is formed. Accordingly, a wheel guide groove having a second inclined surface is provided at the opening side edge of the bottom wall, and the second inclined surface of the wheel guide groove is formed so as to be continuous with the first inclined surface of the slope member. By doing so, it becomes possible to easily push in the heavy-loading cart, and it is possible to prevent collapse of the load of the cart-loading article. Also,
By providing the groove for the wheel guide, a step between the upper end of the slope member and the upper surface of the bottom wall can be formed to be high, and dust and the like on the slope member can be reliably prevented from being pushed into the refrigerator. Can be kept more clean.
Furthermore, since the bottom wall thickness can be formed to a substantially predetermined thickness, it is possible to maintain the heat insulating property of the heat insulating box.

The refrigerator according to claim 3 is a refrigerator according to claim 1.
Alternatively, in the refrigerator according to claim 2, the end position of the second inclined surface present on the opposite side of the front surface of the bottom wall exists on the opening side of the heat insulating box when the carriage is stored in the heat insulating box. The wheels of the truck are arranged closer to the opening than the stop position where the wheels stop on the bottom wall.

In the refrigerator according to the third aspect having such a feature, the end position of the second inclined surface is located closer to the opening side than the stop position of the opening-side wheel after the bogie is pushed into the heat-insulating box. doing. Thereby, it is possible to prevent the carriage from sliding down to the opening side after the carriage is pushed in, and it is possible to safely stop the carriage in the warehouse.

Further, in the refrigerator according to a fourth aspect, in the refrigerator according to any one of the first to third aspects, the packing member includes a first packing piece abutting at least near a front surface of the bottom wall; It is characterized in that it comprises a second packing piece that contacts the first inclined surface of the slope member.

In the refrigerator according to the fourth aspect having such characteristics, the packing member has a plurality of packing pieces, and the first packing member is provided at an opening end of the packing member.
The packing piece is attached so as to be in contact with the vicinity of the bottom wall front surface, and the second packing piece provided on the heat insulating door side is:
The slope member is attached so as to contact the first inclined surface. Accordingly, the lower end edge of the first packing piece of the packing member attached to the inside of the lower edge of the heat-insulating door abuts on the vicinity of the connecting portion between the slope member and the bottom wall front surface, so that the slope member and the bottom wall front surface are connected to each other. , Or the gap between the slope member and the opening end of the wheel guide groove on the front surface of the bottom wall can be prevented from leaking cold air in the refrigerator. Further, in order to hold dust and the like on the slope member between the lower edge of the first packing piece and the lower edge of the second packing piece of the packing member, it is necessary to prevent the dust and the like from being pushed into the refrigerator. It is possible to maintain the sanitary condition in the refrigerator by preventing the condition.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a refrigerator according to the present invention will be described in detail with reference to FIGS. 1 to 5 based on first and second embodiments embodying the present invention. First, a refrigerator according to a first embodiment will be described with reference to FIGS. FIG. 1 is a cross-sectional view of the refrigerator according to the first embodiment. FIG. 2 is a partially enlarged cross-sectional view of the heat-insulating box at the lower part of the opening of the refrigerator according to the first embodiment.

In FIG. 1, a refrigerator 1 is provided with a heat-insulating box 2 having a rectangular opening 3 on the front surface, and is rotatably supported by one side of the opening 3 so as to close the opening 3. It comprises a heat-insulating door 6 freely attached and a storage room 4 formed in the heat-insulating box 2. At the center of the ceiling wall 11 of the heat-insulating box 2, a suction port 12 and a discharge port 1
3 are formed, and the suction port 12 and the discharge port 13
The auxiliary heat insulating material 14 is provided so as to close the space. In the auxiliary heat insulating material 14, a cooling chamber 16 is formed. The cooling chamber 16 communicates with the storage chamber 4 formed in the heat-insulating box 2 at the suction port 12 and the discharge port 13, and the cooling chamber 16 has a cooler 19 forming a refrigerant circuit of a refrigeration apparatus.
Is provided, and a blower 21 is attached to the suction port 12. On the upper surface of the ceiling wall 11, a compressor, a condenser, and the like, which also constitute a refrigerant circuit of a refrigerating device (not shown), are arranged. The ceiling wall 11 is surrounded by a panel 22. Further, a cart 31 on which goods and the like are loaded is pushed into the storage room 4.

Next, the configuration of the slope member and the lower portion of the opening 3 will be described in detail with reference to FIG. As shown in FIG. 2, a slope member 26 serving as a bogie guide plate is screwed on a front surface 5 </ b> A of the bottom wall 5 of the heat insulating box body 2 at the opening 3 portion with a screw 27. The slope member 26 continuously extends forward from the opening 3 and has a slope inclined surface 26A gradually rising from the front end to the rear, and a connecting surface 26B hanging down from the rear end of the slope inclined surface 26A. Having. The slope member 26 has the connecting surface 26B abutted against the front surface 5A of the bottom wall 5, and the connecting surface 26B has a screw 27.
And is screwed to the front surface 5A of the bottom wall 5 so that the heat insulating box 2
It is connected to.

Further, as shown in FIG.
The height of the upper end of A and the rear end of the sloped inclined surface 26A are substantially equal. Then, the opening 3 on the upper surface of the bottom wall 5
The lower edge portion is formed with a lower opening inclined surface 5B that gradually rises inward from the edge of the opening 3, and the rear end of the lower opening inclined surface 5B is closer to the opening 3 than the rear wheel 32A of the cart 31. The bottom wall 5 located on the side and inside from the rear end of the lower opening inclined surface 5B is formed to a predetermined thickness. Therefore, the slope slope 26A and the lower opening slope 5B form a continuous slope. Further, the rear end of the lower opening inclined surface 5B is located closer to the opening 3 than the rear wheel 32A of the cart 31, so that the cart 31 is pushed into the back (the state of FIG. 2). Are arranged on the horizontal surface of the upper surface of the bottom wall 5 and do not slide down to the opening 3 side.

The upper part and the left and right sides of the heat insulating door 6 extend outside the upper edge and the left and right side edges of the opening 3.
A packing 7 is provided inside the upper edge and the left and right side edges of the heat insulating door 6.
Is attached, and the opening 3 is opened with the heat insulating door 6 closed.
To tightly contact the upper and left and right side edges of the storage chamber 4 to prevent cold air from leaking from the storage room 4.

A lower packing member 36 is screwed inside the lower edge of the heat insulating door 6 across the left and right sides of the heat insulating door 6.
A square groove is formed on the lower surface of the lower packing member 36, and a rubber front packing 36A and a rear packing 36B are fixed with an elastic material 37 such as rubber or a spring therebetween, and fitted into the square groove from below. It is inserted and fixed with an adhesive or the like. When the heat insulating door 6 is closed, the lower end of the front packing 36A is
It contacts the upper end of the front surface 5A of the bottom wall 5 and the rear end of the sloped inclined surface 26A. The rear packing 36B is provided so as to protrude downward from the upper end of the front surface 5A of the bottom wall 5, and when the heat insulating door 6 is closed, the lower end of the rear packing 36B is attached to the slope inclined surface 26A. And bends in the direction away from it. This prevents cold air from leaking between the lower edge of the heat insulating door 6 and the lower edge of the opening 3.

As described above in detail, in the refrigerator 1 according to the first embodiment, the slope inclined surface 26A extends from the upper end of the front surface 5A of the bottom wall 5 of the heat insulating box 2 to a position just before the rear wheel 32A of the cart 31. Is formed on the lower inner edge of the heat-insulating door 6 and the front packing 36A that contacts the upper end of the front surface 5A of the bottom wall 5 and the sloped slope 26A after being bent. A lower packing member 36 having a side packing 36B is screwed. Accordingly, by providing the lower opening inclined surface 5B which rises inward at an angle continuous to the slope inclined surface 26A of the bogie guiding slope member 26 at the edge of the upper surface of the bottom wall 5 on the opening 3 side, the slope member 26 The inclination angle can be formed gently, and the cart 31 can be easily pushed in when a heavy object is loaded. In addition, the cart 31 can be smoothly taken in and out, and the load of the cart 31 collapses. Etc. can be prevented. In addition, cart 31
The bottom wall thickness on the opening 3 side from the rear wheel 32A after the pushing is gradually reduced to the rear end of the slope member 26,
Since the thickness of the bottom wall inside from the rear wheel 32A can be formed to a substantially predetermined thickness, it is possible to maintain the heat insulating property of the heat insulating box 2. In addition, since the edge of the opening 3 on the upper surface of the bottom wall 5 is formed on the lower inclined surface 5B of the lower opening, it is possible to prevent dust and the like from entering the storage room 4 at the back. Also,
The lower end of the front packing 36A of the lower packing member 36 attached to the inside of the lower edge of the heat insulating door 6 is located on the front surface 5 of the bottom wall 5.
By contacting the upper end of the bottom wall 5A, the storage room 4 is moved from the gap between the connecting surface 26B of the slope member 26 and the front surface 5A of the bottom wall 5.
It is possible to prevent cold air from leaking inside, and retain dust on the slope inclined surface 26A between the lower end edge of the front packing 36A of the lower packing member 36 and the lower end edge of the rear packing 36B. Therefore, it is possible to prevent dust from being pushed into the storage room 4 and to maintain a sanitary state in the storage room 4.

Next, a refrigerator according to a second embodiment will be described in detail with reference to FIGS. FIG. 3 is a cross-sectional view including a wheel guide groove of the refrigerator according to the second embodiment. FIG. 4 is a partially enlarged cross-sectional view including a groove for guiding a wheel of a heat-insulating box at a lower portion of an opening of a refrigerator according to a second embodiment. FIG. 5 shows the second
It is a partially expanded perspective view of the heat insulation box of the opening lower part of the refrigerator which concerns on embodiment. The configuration of the refrigerator 50 according to the second embodiment is substantially the same as the configuration of the refrigerator 1 according to the first embodiment, but the upper surface 52B of the bottom wall 52 of the heat-insulating box 51 is formed in a substantially horizontal flat plate shape. The upper end of the front surface 52A of the bottom wall 52 is formed higher than the rear end of the slope 26A of the slope member 26. A wheel guide groove 56 is formed at a position corresponding to the front wheel 32B and the rear wheel 32A when the cart 31 is put in and out of the opening 55 of the bottom wall 52 (see FIG. 5). The edge of the bottom surface 56A of the wheel guide groove 56 on the opening 55 side is formed at the height of the rear end of the sloped inclined surface 26A, and the bottom surface 56A is directed inward at an angle that is continuous with the sloped inclined surface 26A. A gradually rising inclined surface is formed, and the rear end of the bottom surface 56A is located closer to the opening 55 than the rear wheel 32A of the cart 31. Accordingly, the slope inclined surface 26A and the wheel guide groove 5 are formed.
6 form a continuous inclined surface with the bottom surface 56A. The rear end of the bottom surface 56A is connected to the rear wheel 32 of the cart 31.
A is located closer to the opening 55 than A.
Is placed on the horizontal surface of the upper surface 52B of the bottom wall 52 when it is pushed all the way down (the state of FIG. 4), and therefore does not slide down to the opening 55 side.

The upper and left and right side portions of the heat insulating door 54 extend outside the upper edge and the left and right side edges of the opening 55, and are located inside the upper edge and the left and right side edges of the heat insulating door 54. The packing 7 is attached, and is tightly attached to the upper side and the left and right side edges of the opening 55 in a state where the heat insulating door 54 is closed, thereby preventing cold air from leaking from the storage room 4.

A lower packing member 53 is screwed to the inside of the lower edge of the heat insulating door 54 across the left and right sides of the heat insulating door 54. Square grooves are formed on the lower surface of the lower packing member 53, and rubber front packing 53A and rear packing 53B are formed.
And an elastic member 57 such as rubber or a spring is fixed therebetween, is fitted into the square groove from below, and is fixed by an adhesive or the like. When the heat insulating door 54 is closed, the front packing 53A
The front surface of the front surface 5 is higher than the rear end of the sloped inclined surface 26A.
2A, and the lower end of the front packing 53A is in contact with the rear end of the sloped slope 26A. The rear packing 53B is provided on the bottom surface 56 of the wheel guide groove 56.
A is provided so as to protrude downward from the edge of the opening 55 on the side of the opening 55. When the heat insulating door 54 is closed, the lower end of the rear packing 53B is bent in the direction away from the heat insulating box body 2 on the slope inclined surface 26A. Touch This prevents cold air from leaking between the lower edge of the heat insulating door 54 and the lower edge of the opening 55.

As described above in detail, in the refrigerator 50 according to the second embodiment, the front surface 52 of the bottom wall 52 of the heat insulating box 51 is provided.
The rear end of the sloped inclined surface 26A is formed lower than the upper end of the bottom wall 52A.
Wheel guide grooves 56 are formed at positions corresponding to the front wheels 32B and the rear wheels 32A at the time of loading and unloading (see FIG. 5). Opening 5 of bottom surface 56A of groove portion 56 for wheel guide
The fifth side edge is formed at the height of the rear end of the slope inclined surface 26A, and the bottom surface 56A is formed with an inclined surface that gradually rises inward at an angle that is continuous with the slope inclined surface 26A. The rear end of the bottom surface 56A is located closer to the opening 55 than the rear wheel 32A of the cart 31. Further, the inner lower edge of the heat-insulating door 54 is in close contact with the front surface 52A above the rear end of the sloped inclined surface 26A, and is bent to the front packing 53A and the sloped inclined surface 26A that abut the rear end of the sloped inclined surface 26A. A lower packing member 53 having a rear packing 53B that comes into contact with the lower packing 53 is screwed.

By forming the wheel guide grooves 56 corresponding to the wheels 32A and 32B of the cart 31 at the edge of the bottom wall 52 on the opening 55 side so as to be continuous with the slope inclined surface 26A, the heavy load It is possible to easily push the cart 31 in when loading, and the cart 3
It is possible to prevent the collapse of the load of the first load. In addition, by providing the wheel guide groove 56, a step between the rear end of the sloped inclined surface 26A and the upper end of the front surface 52A of the bottom wall 52 can be formed to be high, and at the inside of the lower edge of the heat insulating door 54. Since the front packing 53A of the attached lower packing member 53 is substantially in close contact with the front surface 52A of the bottom wall 52, it is possible to more efficiently prevent the cold air from leaking in the refrigerator, and the lower packing member 53 has a slope inclination. Dust on the surface 26A can be reliably prevented from being pushed into the storage room 4, and the inside of the storage room 4 can be kept more clean. Further, since the bottom wall 52 can be formed to have a substantially predetermined thickness, the heat insulation of the heat insulating box 51 can be maintained. Further, the front packing 5 of the lower packing member 53 attached to the inside of the lower edge of the heat insulating door 54.
The lower edge of 3A is the front surface 5 of the bottom wall 52 of the slope member 26.
By contacting the upper end of the connecting portion with 2A, it is possible to prevent the leakage of cool air in the storage room 4 from the gap between the slope member 26 and the end of the opening 55 of the wheel guide groove 56 on the front surface 52A of the bottom wall 52. And a slope 26A between the lower end of the rear packing 53B of the lower packing member 53 and the lower end of the front packing 53A.
In order to hold the dust above, it is possible to prevent dust and the like from being pushed into the storage room 4 and to maintain a sanitary condition in the storage room 4.

It should be noted that the present invention is not limited to the first and second embodiments, and it is needless to say that various improvements and modifications can be made without departing from the gist of the present invention. The following may be performed. (A) Although the screw 27 is screwed through the connection surface 26B of the slope member 26 so as to penetrate, the connection may be performed by engaging the connection surface 26B with the screw 27. (B) The slope angle of the slope 5B of the lower opening portion of the bottom wall 5 and the slope 56A of the bottom surface 56A of the groove portion for wheel guide 56
The slope angle is almost the same as the slope angle, but may be a gentler slope than the slope slope 26A. (C) Each rear packing 36B, 53B is one,
Two or more packings may be used. In this case, since the lower end of the rear packing is configured in the same manner as each of the rear packings 36B and 53B, it is bent and abuts on the slope inclined surface 26A.

[0028]

As described above, according to the refrigerator of the first aspect, the heat-insulating door having the opening on the front surface is rotatably supported by the heat-insulating door that closes the opening so that it can be opened and closed. I have. Further, a packing member is attached inside the lower edge of the heat insulating door, and a gap between the heat insulating door and the lower edge of the opening is closed. A slope member having a first inclined surface for guiding a bogie is continuously provided on a front surface of a bottom wall of the heat-insulating box, and a height of an upper end of a connection portion of the slope member with the front surface of the bottom wall is lower than the bottom wall. It is formed substantially equal to the height of the upper end of the front surface. The opening-side edge of the upper surface of the bottom wall is formed as a second inclined surface that is inclined upward as going inward from the opening at an angle that is continuous with the slope member. Accordingly, by providing a second inclined surface which rises inward at an angle continuous to the first inclined surface of the bogie guiding slope member at the opening side edge of the upper surface of the bottom wall, the first inclined surface of the slope member is formed. The inclination angle can be formed gently, and it becomes possible to easily push in the heavy load truck, and also it is possible to smoothly put the load truck in and out, and to prevent the load of the truck load from collapsing. A possible refrigerator can be provided. Also, the bottom wall thickness on the opening side gradually decreases to the upper end height of the slope member, but since the bottom wall thickness on the inner side from the end position of the second inclined surface can be formed to a substantially predetermined thickness, the heat insulating box body And a refrigerator capable of maintaining the heat insulation of the refrigerator.
Further, since the opening edge of the upper surface of the bottom wall is formed on the second inclined surface which is lowered outward, it is possible to provide a refrigerator which can prevent dust and the like from entering the interior of the refrigerator.

Further, according to the refrigerator of the present invention, the heat-insulating door having the opening on the front face is rotatably supported by the heat-insulating door for opening and closing the opening. Further, a packing member is attached inside the lower edge of the heat insulating door, and a gap between the heat insulating door and the lower edge of the opening is closed. In addition, a slope member for guiding the bogie is connected to the front surface of the bottom wall of the heat-insulating box, and the height of the upper end of the slope member connected to the front surface of the bottom wall is lower than the upper end of the front surface of the bottom wall. Is formed.
A wheel guide groove for guiding wheels of the bogie is formed at the opening edge of the bottom wall of the heat insulating box, and the lower end on the opening side of the wheel guide groove is substantially equal to the upper end of the first inclined surface of the slope member. At the same time, a second inclined surface is formed on the bottom surface of the wheel guide groove, which is upwardly inward from the opening at an angle that is continuous with the first inclined surface of the slope member.
Accordingly, a wheel guide groove having a second inclined surface is provided at the opening side edge of the bottom wall, and the second inclined surface of the wheel guide groove is formed so as to be continuous with the first inclined surface of the slope member. By doing so, it is possible to provide a refrigerator capable of easily pushing in a heavy-loading cart and preventing the load of the cart from collapsing.
Also, by providing the wheel guide groove, a step between the upper end of the slope member and the upper surface of the bottom wall can be formed high, and it is possible to reliably prevent dust or the like on the slope member from being pushed into the refrigerator. It is possible to provide a refrigerator that can keep the inside of the refrigerator more clean. Further, since the bottom wall can be formed to have a substantially predetermined thickness, it is possible to provide a refrigerator capable of maintaining the heat insulating property of the heat insulating box.

In the refrigerator according to the third aspect, the end position of the second inclined surface is located closer to the opening side than the stop position of the opening-side wheels after the carriage is pushed into the heat insulating box. . Thereby, it is possible to prevent the trolley from sliding down to the opening side after the trolley is pushed in, and to provide a refrigerator capable of safely stopping the trolley in the refrigerator.

Furthermore, according to the refrigerator of the fourth aspect,
The packing member has a plurality of packing pieces, and a first packing piece provided at an opening-side end of the packing member is attached so as to be in contact with a vicinity of the front surface of the bottom wall, and a first packing piece is provided on a heat insulating door side. The two packing pieces are attached so as to contact the first inclined surface of the slope member. Accordingly, the lower end edge of the first packing piece of the packing member attached to the inside of the lower edge of the heat-insulating door abuts on the vicinity of the connecting portion between the slope member and the bottom wall front surface, so that the slope member and the bottom wall front surface are connected to each other. , Or a gap between the slope member and the opening end of the wheel guide groove on the front surface of the bottom wall can provide a refrigerator capable of preventing leakage of cool air in the refrigerator. Further, in order to hold dust and the like on the slope member between the lower edge of the first packing piece and the lower edge of the second packing piece of the packing member, it is necessary to prevent the dust and the like from being pushed into the refrigerator. It is possible to provide a refrigerator that can prevent the refrigerator and maintain the sanitary condition in the refrigerator.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refrigerator according to a first embodiment.

FIG. 2 is a partially enlarged cross-sectional view of the heat-insulating box at the lower part of the opening of the refrigerator according to the first embodiment.

FIG. 3 is a cross-sectional view including a groove portion for guiding wheels of a refrigerator according to a second embodiment.

FIG. 4 is a partially enlarged cross-sectional view including a groove for guiding a wheel of a heat-insulating box at a lower part of an opening of a refrigerator according to a second embodiment.

FIG. 5 is a partially enlarged perspective view of a heat insulating box at a lower portion of an opening of a refrigerator according to a second embodiment.

[Explanation of symbols]

1, 50 ... refrigerator, 2, 51 ... heat insulating box, 3,
55 ... opening 5, 52 ... bottom wall, 6, 54 ... heat-insulating door, 26 ...
・ Slope members 36, 53: Lower packing member, 56: Wheel guide groove

Claims (4)

[Claims] A heat insulating box having an opening at a front surface thereof; an insulating door rotatably supported by the heat insulating box to close the opening so as to be openable and closable; and a front surface of a bottom wall of the heat insulating box. In a refrigerator provided with a trolley guiding slope member having a first inclined surface and a packing member attached inside a lower edge of the heat insulating door, the bottom wall of the heat insulating box has the slope. A refrigerator having a second inclined surface that is continuous with the first inclined surface of the member and that is inclined upward from the front surface of the bottom wall toward the inside of the heat insulating box. 2. An insulating box having an opening on the front surface, an insulating door rotatably supported by the insulating box to close the opening so as to be openable and closable, and a front surface of a bottom wall of the insulating box. A refrigerator provided with a trolley guiding slope member having a first inclined surface and a packing member attached to a lower edge inside the heat insulating door, wherein the refrigerator is provided on a bottom wall of the heat insulating box; A wheel guide groove for guiding wheels of the bogie, wherein the wheel guide groove is continuous with the first inclined surface of the slope member, and is directed upward from the bottom wall front surface toward the inside of the heat insulating box. A refrigerator having a second inclined surface that is inclined. 3. The end position of the second inclined surface present on the opposite side of the front surface of the bottom wall, the wheel of the truck existing on the opening side of the heat insulating box when the vehicle is stored in the heat insulating box. The refrigerator according to claim 1 or 2, wherein the refrigerator is disposed closer to an opening than a stop position where the refrigerator stops on the bottom wall. 4. The gasket according to claim 1, wherein the packing member includes a first packing piece abutting at least near a front surface of the bottom wall and a second packing piece abutting on a first inclined surface of the slope member. The refrigerator according to any one of claims 1 to 3.