JP7152162B2 - food cart - Google Patents

Description

The present invention relates to catering carts.

As a conventional catering cart, for example, one described in Patent Document 1 is known. The catering cart described in Patent Document 1 has a storage chamber main body made of a rectangular heat-insulating box body whose front and back sides are open. A pair of left and right fixed wheels are provided at the intermediate position.

JP 2015-199395 A

In general, the fixed wheel is set slightly higher than the front and rear swivel wheels from the bottom of the main body to the contact surface. As a result, the installation area of the catering cart can be reduced, the load on the catering cart can be reduced when it starts running, and the operability during turning can be improved. However, since the food cart is in a balance state with a fixed wheel as a fulcrum, the main body swings back and forth, causing problems such as spilling the stored soup and the sound of tableware. rice field.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and one of the objects of the present invention is to provide a catering cart that can be prevented from swinging back and forth with a fixed wheel as a fulcrum.

In order to solve the above-mentioned problems, the catering cart of the present invention is a catering cart having a storage compartment, and a chassis for loading the storage compartment, and a front freely adjustable wheel mounted on the front side of the chassis and capable of changing the direction of the wheels. a wheel, a rear swivel wheel that is arranged on the rear side of the chassis and whose direction can be changed, and a wheel that is arranged between the front swivel wheel and the rear swivel wheel of the chassis and whose direction is fixed. and a fixed wheel mounted on a flat surface, wherein the front free wheel, the rear free wheel, and the fixed wheel are each grounded on the flat surface. The ground contact pressure of the front swivel wheel and the rear swivel wheel with respect to the flat surface is lower than the ground pressure of the fixed wheel.

When the chassis of the catering cart is placed on a flat surface, the front free wheel, the rear free wheel, and the fixed wheel are all grounded, so the fixed wheel swings like a conventional balance with the fixed wheel as a fulcrum. The vehicle can be stabilized without As a result, it is possible to prevent stored meals and the like from spilling out due to shaking. Further, since the ground contact pressure of the front and rear free wheels is lower than that of the fixed wheel, the center of gravity of the vehicle body can easily move forward and backward. As a result, compared to the case where all the wheels have the same ground contact pressure, it is possible to reduce the load applied to the vehicle body when the food service cart turns or starts traveling, and it is possible to improve the operability of the food service car.

Further, the tire of the fixed wheel may be harder than the tires of the front free wheel and the rear free wheel.

By making the tire of the fixed wheel harder than the tire of the front free wheel and the rear free wheel, the ground pressure of the front free wheel and the rear free wheel can be made lower than the ground pressure of the fixed wheel. .

Refrigeration equipment having a compressor for compressing a refrigerant is provided, and the compressor is arranged on the chassis at a position closer to the fixed wheel than the front free wheel and the rear free wheel. It is good as

Among refrigeration equipment, by arranging a heavy compressor near the fixed wheel that is the center of rotation during turning, it is possible to arrange the compressor near the front swivel wheel or the rear swivel wheel. In comparison, the user's load on the food cart can be reduced when the food cart turns.

Advantageous Effects of Invention According to the present invention, it is possible to provide a catering cart that is prevented from rocking back and forth like a balance around a fixed ring arranged between a front free wheel and a rear free wheel as a fulcrum.

Front perspective view of catering cart Perspective view from the bottom side of the catering cart Rear perspective view of catering cart Side view of catering cart Bottom view of catering cart Side view of food cart with machine room visible Front perspective view of food cart with machine room visible

A catering cart 10 of the present embodiment will be described with reference to FIGS. 1 to 7. FIG. In the following description, the X direction in FIG. 1 is the front, the Z direction is the top, and the Y direction is the left.
As shown in FIG. 7, the catering cart 10 includes a heat-insulating box-shaped storage room 12 capable of storing meals, a box-shaped machine room 18, and a chassis 32 on which the storage room 12 and the machine room 18 are loaded. ing.

As shown in FIG. 7, the storage compartment 12 is composed of a refrigerating compartment 14 arranged on the front side and opening on the left side, and a greenhouse compartment 16 arranged on the rear side and opening on the left side. Doors 24 that can be opened and closed are provided at the openings of the refrigerator compartment 14 and the warmer compartment 16, respectively.

Inside the machine room 18, refrigerating equipment 20 for cooling the inside air of the refrigerating room 14 is provided. The refrigerating equipment 20 includes a compressor 22 for compressing the refrigerant, a condenser for condensing the refrigerant, a decompressor for decompressing the refrigerant, and a cooler for evaporating the refrigerant and taking heat from the surroundings.

As shown in FIG. 1 , a plate-like top plate 26 is provided on the top surface of the storage chamber 12 , and a handle 28 is provided on the rear end side of the top plate 26 . While gripping the handle 28 with a hand, the user pushes or pulls to make the catering cart 10 travel. A foldable side table 30 is provided in front of the refrigerator compartment 14 .

As shown in FIG. 2, the chassis 32 has a square plate shape, and six wheels 34 and a pedal lock 42 for braking the catering cart 10 are attached to the underside of the chassis 32 .

As shown in FIG. 2, the wheels 34 are a pair of left and right front swivel wheels 36 that are arranged on the front side and whose direction can be changed, and a pair of left and right rear swivel wheels 38 that are arranged on the rear side and can change the direction. and a pair of left and right fixed wheels 40 which are disposed between the front swivel wheel 36 and the rear swivel wheel 38 and whose orientation is fixed. When the catering cart 10 turns in the left-right direction, it turns around the pair of fixed wheels 40 as fulcrums.

The front swivel wheel 36, the rear swivel wheel 38, and the fixed wheel 40 are tires having the same diameter. As a result, when the food service cart 10 is placed on the plane F, as shown in FIG. Swinging back and forth like a balance around the fixed ring 40 as a fulcrum is suppressed.

A soft rubber tire is used for the front free wheel 36 and the rear free wheel 38, and a hard urethane tire is used for the fixed wheel 40 tire. As a result, the ground pressure of the front swivel wheel 36 and the rear swivel wheel 38 becomes lower than the ground pressure of the fixed wheel 40, and the center of gravity of the vehicle body is easily moved forward and backward. It is possible to reduce the load applied to the food truck 10 and improve the operability of the food service truck 10.

Since the compressor 22 is generally heavy among the refrigeration equipment 20, as shown in FIG. This reduces the load that the user places on the catering cart 10 when turning.

According to this embodiment, the following functions and effects are obtained.
The food delivery cart 10 of the present embodiment has a storage room 12, and includes a chassis 32 for loading the storage room 12, and a front free wheel 36 arranged in front of the chassis 32 and capable of changing the direction of the wheels. , a rear swivel wheel 38 which is arranged on the rear side of the chassis 32 and whose direction can be changed; and a fixed wheel 40, and the front free wheel 36, the rear free wheel 38, and the fixed wheel 40 are grounded on the plane F when the catering cart 10 is placed on the flat plane F. The ground contact pressure of the front swivel wheel 36 and the rear swivel wheel 38 with respect to the plane F is lower than the ground pressure of the fixed wheel 40 .

According to this embodiment, when the chassis 12 of the catering cart 10 is placed on a flat plane F, the front swivel wheel 36, the rear swivel wheel 38, and the fixed wheel 40 are all grounded. The vehicle body can be stabilized without rocking like a balance with the fixed wheel as a fulcrum, unlike the conventional system. As a result, it is possible to prevent stored meals and the like from spilling out due to shaking. Further, since the ground pressure of the front swivel wheel 36 and the rear swivel wheel 38 is lower than the ground pressure of the fixed wheel 40, the center of gravity of the vehicle body can easily move forward and backward. As a result, compared to the case where all the wheels 34 have the same ground pressure, it is possible to reduce the load applied to the vehicle body when the food delivery vehicle 10 turns or starts traveling, and the operability of the food delivery vehicle 10 can be improved. .

Further, the tire of the fixed wheel 40 may be configured to be harder than the tire of the front free wheel 36 and the rear free wheel 38 .

By making the tire of the fixed wheel 40 harder than the tire of the front free wheel 36 and the rear free wheel 38, the ground pressure of the front free wheel 36 and the rear free wheel 38 is made lower than the ground pressure of the fixed wheel 40. can also be lowered.

Refrigeration equipment 20 having a compressor 22 for compressing refrigerant is provided, and the compressor 22 is arranged on the chassis 32 at a position closer to the fixed wheel 40 than the front swivel wheel 36 and the rear swivel wheel 38. It is also possible to adopt a configuration in which

By arranging the heavy compressor 22 in the vicinity of the fixed wheel 40, which is the center of rotation during turning, in the refrigeration equipment 20, the compressor can be placed near the front swivel wheel 36 or the rear swivel wheel 38. 22, it is possible to reduce the load that the user places on the food service cart 10 when the food service car 10 turns.

<Other embodiments>
The present invention is not limited to the embodiments explained by the above description and drawings, and the following embodiments are also included in the technical scope of the present invention.
(1) In this embodiment, the tires of the front swivel wheel 36 and the rear swivel wheel 38 are made of soft rubber tires, and the tires of the fixed wheel 40 are made of hard urethane tires. 38 is configured to be lower than the ground pressure of the fixed ring 40. For example, the buffer spring used in the free wheel may be made weaker than the buffer spring used in the fixed ring. Alternatively, the contact pressure of the free wheel may be lower than the contact pressure of the fixed wheel.
(2) In the present embodiment, the six-wheel configuration is made up of the pair of front swivel wheels 36, the pair of rear swivel wheels 38, and the pair of fixed wheels 40. A five-wheel configuration may be employed in which one fixed wheel is arranged between a pair of rear free wheels, or one front free wheel and one rear free wheel are arranged in front of and behind a pair of left and right fixed wheels. A configuration with four wheels may also be used.

DESCRIPTION OF SYMBOLS 10... Food delivery truck 12... Storage room 20... Refrigerating equipment 22... Compressor 32... Chassis 36... Front side swivel wheel 38... Rear side swivel wheel 40... Fixed wheel F... Plane

Claims (2)

A food cart having a storage room,
a chassis on which the storage compartment is loaded;
a front swivel wheel arranged on the front side of the chassis and capable of changing the direction of the wheel;
a rear swivel wheel arranged on the rear side of the chassis and capable of changing the direction of the wheel;
a fixed wheel disposed between the front swivel wheel and the rear swivel wheel of the chassis and having a fixed wheel orientation;
and refrigeration equipment having a compressor that compresses the refrigerant,
In a state in which the catering cart is placed on a flat plane, the front swivel wheel, the rear swivel wheel, and the fixed wheel are each grounded on the plane. The contact pressure of the side free wheel with respect to the plane is lower than the contact pressure of the fixed wheel,
The compressor is located on the chassis at a position closer to the fixed wheel than the front swivel wheel and the rear swivel wheel, and the center side of the chassis in the left-right direction and the center of rotation during turning. A catering cart arranged near the fixed wheel. 2. The catering truck according to claim 1, wherein the tires of the fixed wheels are harder than the tires of the front and rear swivel wheels.

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