JPH0370508A - Heat insulating device for meal serving vehicle - Google Patents

Abstract

PURPOSE:To provide an efficient heating and heat insulation and to improve the efficiency of serving meals by mounting an arm extending over to the covering on the body of the meal serving vehicle and by making the weight of the vehicle light and compactizing the heat insulating device through mounting a detachable engaging member respectively on the side on which these arms and the covering face with each other. CONSTITUTION:When preparing meals within a meal serving vehicle 1, after allocating food prepared in the plate placed on the tray 10, a cover 20 is put on the food to be heated and to be cooked. On the other hand, food that should not be heated is to be allocated on the outside part of the cover 20 of the tray 10. When food is prepared in other places, a lid 22 is firstly placed on the cover 20 and then the cover 20 is held so that the cover is attracted to the arm 27. Then each tray 10 on which food is served in a predetermined position is carried to the meal serving vehicle to be housed in a tray receiving rack 12. After closing the opening door, this meal serving vehicle is moved to a predetermined place. An external power source is plugged into the outlet 13. A housing chamber 10a is heated and heat insulated by each line with a timer switch 14.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heat retention device, and more specifically, to a heating device for a hospital serving truck (
The present invention relates to a heat-retaining device suitable for use in delivery carts, hotel room service carts, and the like.

[Conventional technology]

Conventional heating devices for serving cars either arrange a plurality of panel-shaped heat storage elements inside a heating container and use natural convection to heat the entire inside of the container, or install a heating element and a fan to heat the inside of the container using forced convection. I tried to keep everything warm.

(Problem to be Solved by the Invention) In the conventional heating device for a serving truck having the above configuration, the entire interior of the container, that is, the air and all the metal members that make up the container, are heated, so it has good heat insulation and airtightness. In order to ensure a suitable structure, an increase in weight and cost is unavoidable, and there is a problem in that it takes a long time to raise the temperature with a constant amount of electric power.

Additionally, food that must not be heated must be stored in separate containers or in isolated rooms, increasing the number of serving trucks and
There were problems such as not only an increase in size and weight, but also an increase in the amount of labor required by the workers.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and provides a heat-retaining device for a serving car that can not only efficiently heat and retain food by making the heat-retaining device lightweight and compact, but also improve the efficiency of serving work. It is something to do.

[Means for Solving the Problems] A heat retention device for a serving vehicle according to the present invention includes placing a covering body on a tray that covers food and thermally insulating it from the outside, and connecting the inside of the covering body from an external power source. A heating means that is energized and controlled via the built-in wiring of the serving vehicle is provided, and a removable lid is provided on the outer opening of the covering to seal the food on the tray to keep it warm. Arms extending above the cover are attached to the cover, and removable engagement members are respectively attached to opposing surfaces of these arms and the cover.

[Effect]

According to the heat retention device for a serving car according to the present invention, a covering body that covers food and is thermally isolated from the outside is placed on a tray,
A heating means that is controlled to be energized from an external power source through the built-in wiring of the serving vehicle is provided inside this covering, and a removable lid is provided on the outer opening of the covering to seal the food on the tray to keep it warm. At the same time, an arm extending above the cover is attached to the body side of the serving vehicle, and removable attachment members are attached to the opposing surfaces of these arms and the cover, so that only the specified food on the tray can be fixed. In addition to efficiently heating and keeping food warm, serving food can be done easily.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained using FIGS. 1 to 6. (1) shows a bottom plate (2), left and right wall plates (3), (3) and Pillar (4) (4
) and a top wall plate (5) with a rack installed between them, and the left and right wall plates (3).

(3) It is configured as a movable handcart with handles (6) provided on the outside and wheels (7) such as casters provided on the bottom plate (2). In addition, inside the framed serving cart (1), openings m (9), (9 ) forms a storage space (11) into which a tray (lO) can be freely taken out.

Each left and right wall plate (3), (3) and each pillar (4),
<4) and the storage tray (lO
) are spaced more widely apart, each tray (10)
A shelf (12) is attached to the cross-sectional tray holder on which each tray (10) is placed so that the trays (10) are arranged in parallel vertically and horizontally. ).

At the bottom of the top wall plate (5) of the serving car (1), left and right wall plates (
A control unit (5a) is provided on both opening sides of 3) and (3), and an outlet (13) connected to an external power source is attached to this control unit (5a). Each storage chamber (1
0a) and each timer switch (14), (14
) are connected to each predetermined storage row by wiring (14b).

On top of each tray (10) that is removably stored in the serving car (1), there is a transparent abutment part (21 ) is mounted, and a heat insulating member (24) such as urethane resin is attached to the inside of this cover (20). A transparent M (22) made of synthetic resin or the like is removably attached to the side opening of the swing door (9) via a magnet (23). Therefore, this M (22)
When the cover (20) is attached to the opening (20a), the inside of the cover (20) is sealed. Also, this cover (20)
A nichrome wire heater (25) is attached to a ceramic plate with a high far-infrared generation rate on the inside upper part of the cover (20). Heats and keeps the attached food warm.

Connection cord (25a) of this nichrome wire heater (25)
can be connected to the wiring (14b) in each of the storage chambers (10a).

Furthermore, there is an iron piece (26) on the outside upper part of this cover (20).
is fixed.

On the other hand, the tray holder has an arm (27) on the shelf (12) that extends from the shelf (12) onto the iron piece (26) of the cover (20) and has a magnet attached to the end. a cover (20) which is fixed and placed on the tray (10);
When M (22) is lifted, the iron piece (26) is attracted to this arm (27), and when M (22) is removed, the tray (10) can be taken out of the serving car (1) as is. In addition, in the storage room (LOA) on the top floor, there is a tray holder on the top (1 shelf).
2), so the supports (4) and (4
1 or left and right wall plates (3), arm (27) on (3)
is fixed as described above.

Next, the operation will be explained. When serving food in the serving car (1), after placing the food on the tray (10), the cover (20) is placed over the food to be heated and kept warm; Foods to avoid are:
The outside of the cover (20) is placed on the tray (10).

In addition, if the food is served on a tray (lO) at another location and the position on which the food is served on this tray (10) is determined in advance, first place the lid (22) on the cover (20). Then, the cover (20) is held in a state where it is attracted to the arm (27). Then, each tray (10) arranged in a predetermined position is carried to the serving car (1), and the tray holder is placed on the shelf (10).
2). Then, the tray (10) with the cover (20) placed thereon is stored in the row of storage chambers (10a) controlled by the timer switch (14), and the heater (25)
) and the wiring (14b) of the storage room (10a) are respectively connected, the opening screen (9) is closed, and the serving cart is moved to a predetermined location. Next, connect the external power source to the outlet (13), and connect the timer switch (
14), the time for heating and keeping warm the storage chamber (10a) for each row is set, and the food is heated and kept warm. and,
When serving food, open the folding screen (9) and press this M (22)
, and place this M (22) on the cover (20). Next, by simply attaching the cover (20) to the arm (27) and taking out the tray (10), the serving work is completed while the food remains warm.

In addition, in the above embodiment, M (22> and the opening (23) or the arm (27) and the cover (20) are each detachably attached to each other by a magnet, but the present invention is not limited to this. It goes without saying that other fastening means, such as metal hooks, may be used.

Furthermore, in the above embodiment, the tray storage room (
10a) are configured in two rows for each opening, but in the case of a single row, M (22
) may be provided on both sides of the cover (20).

〔Effect of the invention〕

As described above, according to the present invention, a covering body that covers food and is thermally isolated from the outside is placed on a tray, and electricity is controlled to be supplied from an external power source to the inside of the covering body via the built-in wiring of the serving vehicle. A removable lid is provided on the outer opening of the covering to seal the food on the tray to keep it warm, and an arm extending above the covering is attached to the body side of the serving vehicle. By attaching removable attachment members to the facing surfaces of these arms and the covering, the heating device of the serving car can be made lighter and more compact, allowing for efficient heating and heat retention, and cost reduction through standardization. This has the effect of increasing the efficiency of meal serving work.

[Brief explanation of drawings]

Figures 1 to 3 are a side view, a front view, and a perspective view showing an enlarged main part of a serving vehicle according to an embodiment of the present invention, respectively, and Figure 4 is a heat retention vehicle according to an embodiment of the present invention. 5(a) to (C) are respectively a plan view, a side sectional view, and a front view of the heating device shown in FIG. 4, and FIG. 6 is a perspective view showing the heating device when it is attached to the arm. It is a state diagram showing a state. (10)...tray, (12)...tray holder is shelf,
(13)...Timer switch, (20)...Cover (22)...Lid, (23)...Magnet, (25)
... Heater, (26) ... Iron piece, (27) ... Arm. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] In a serving vehicle that stores multiple trays in a removable manner, a covering that covers the food and is thermally isolated from the outside is placed on top of the tray, and the built-in wiring of the serving vehicle is connected from an external power source to the inside of this covering. A heating means is provided that is energized and controlled through the
A removable lid is provided on the outer opening of the covering to seal the food on the tray to keep it warm, and an arm extending above the covering is attached to the body side of the serving vehicle, and these arms and the covering are connected to each other. A heating device for a serving car, characterized in that detachable attachment members are attached to opposing surfaces of the plates.