U.S. patent number 3,901,355 [Application Number 05/433,056] was granted by the patent office on 1975-08-26 for circulative catering table.
Invention is credited to Yoshiaki Shiraishi.
United States Patent |
3,901,355 |
Shiraishi |
August 26, 1975 |
Circulative catering table
Abstract
A circulative table particularly suitable for use in
self-service catering business. The circulative catering table
includes a base frame structure having inner and outer side walls
defining therebetween an endless circular path of travel. A
circular fixed fringe table is mounted horizontally around the
circumference of the outer side wall of the base frame structure.
An endless conveyer is mounted in the circular path of travel of
the base structure for transferring circulatively therealong meals
or dishes for selection by customers who are standing or sitting on
chairs in front of the fixed fringe table. The meals or dishes are
transferred individually in open-sided box-like compartments which
are fixed in a series on the endless conveyer. The circulative
catering table further includes a cover plate and a number of
sterilizing lamps mounted overhead the endless conveyer for
maintaining the served meals or dishes suitably in a sanitary state
free from dusts, putrefaction and the like.
Inventors: |
Shiraishi; Yoshiaki
(Higashi-Osaka, Osaka, JA) |
Family
ID: |
15261275 |
Appl.
No.: |
05/433,056 |
Filed: |
January 14, 1974 |
Foreign Application Priority Data
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Dec 10, 1973 [JA] |
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48-140116 |
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Current U.S.
Class: |
186/44;
186/49 |
Current CPC
Class: |
A47F
10/06 (20130101); B65G 17/12 (20130101); B65G
2201/02 (20130101) |
Current International
Class: |
A47F
10/00 (20060101); A47F 10/06 (20060101); B65G
17/12 (20060101); E04h 003/04 () |
Field of
Search: |
;99/451 ;186/1R,1D
;198/131,154 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Werner; Frank E.
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATION
This application is related to my copending application, Ser. No.
433,043.
Claims
What is claimed is:
1. A circulative catering table comprising:
a base frame structure having inner and outer side walls defining
therebetween an endless circulating path of travel; a fixed fringe
table mounted substantially horizontally around the circumference
of said outer side wall of said base frame structure; an endless
conveyer mounted in said endless circulating path of travel for
circulatively transferring meals therealong, said endless conveyer
comprising a strand of chain movable in and along said endless
circulating path of travel and meshed with and driven from a
horizontally disposed sprocket wheel which is supported on a
vertical shaft, and a series of crescent plates swivable on said
chain and having side wings thereof slidingly rested on horizontal
racks at the upper ends of said inner and outer side walls of said
base frame structure in horizontal alignment with each other to
provide a planar meal-transferring surface on said endless
circulating path of travel; a series of U-shaped meal receiving and
dispensing compartments successively secured to the upper surface
of said plates of said endless conveyer for individually
accommodating dishes or meals to be circulated; driving meals
mounted on said base frame structure and associated with said
endless conveyer for imparting translational movement thereto; a
cover plate mounted overhead said circulating path of travel and
supported on said inner side wall of said base frame structure by
means of a number of posts in parallel spaced relationship to said
meal compartments on said endless conveyer; and a number of
sterilizing lamps mounted on the underside of said cover plate end
to end in the longitudinal direction and wherein said meal
compartments further comprise an opening in the upper plate thereof
for receiving irradiation from said sterilizing lamps for
maintaining in a sanitary state the meals which are under
circulation in said compartments.
2. A circulative catering table as defined in claim 1, wherein said
covering plate is formed from a transparent glass sheet and is
retained in a rigid framework.
3. A circulative catering table as defined in claim 1, wherein said
driving means further comprises a driving motor; a reducer having
the input shaft thereof connected to the output shaft of said
driving motor and an output shaft connected to a worm gear which is
meshed with a worm wheel fixedly supported on said vertical shaft
of said chain driving sprocket wheel.
4. A circulative catering table as defined in claim 1, wherein said
driving means further comprises a geared motor and a transmission
chain interconnecting said geared motor and said vertical shaft of
said chain driving sprocket wheel.
Description
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to a catering equipment, and more
particularly to a circulative table particularly useful in
self-service catering.
Briefly, the present invention is directed to a circulating
catering table which is provided with an endless conveyer inside
and along a circular fixed table for transferring dishes or meals
thereon to allow customers who are standing or sitting outside the
fixed circular table to select a desired dish or dishes among those
which are circulated by the conveyer.
OBJECT OF THE INVENTION
It is an object of the present invention to provide a circulative
catering table of the type mentioned above, which can serve dishes
or meals with high efficiency and in a neat and clean manner.
It is another object of the present invention to provide a
circulative catering table of the type mentioned above, which
employs a series of open-sides open-sided compartments on an
endless conveyor for circulatively transferring the individual
meals or dishes in a neat and clean state.
It is still another object of the present invention to provide a
circulative catering table of the type mentioned above, which has
provision for maintaining the served dishes or meals in sterilized
condition.
It is a further object of the present invention to provide a
circulative catering table which is simple in construction and easy
to maintain in a sanitary state.
SUMMARY OF THE INVENTION
In one preferred form of the invention, the circulative catering
table comprises; a base frame structure having inner and outer side
walls defining therebetween an endless circulating path of travel;
a fixed fringe table mounted substantially horizontally around the
circumference of said outer wall of said base frame structure; an
endless conveyer mounted in said endless circulating path of
travel; a series of open-sided compartments fixedly mounted on said
endless conveyor for receiving and circulatively transferring meals
along said circulating path of travel; a driving means mounted on
said basic frame structure and associated with said endless
conveyer for imparting translational movement thereto.
The endless circulating path may be formed in a generally
rectangular or circular shape, in a plan view, whichever may be
desired. Preferably, the circulative catering table of the
invention further comprises a cover plate mounted overhead said
circulating path and supported on the outer side wall of the base
frame structure by means of a suitable number of posts in parallel
spaced relation with the meal-carrying open-sided compartments. It
is preferred to form the cover plate from a transparent material
such as transparent glass sheet and retain the same in a framework
using suitable straight and angular structural material.
In another aspects of the invention, the circulative catering table
further includes a cooking table located at a suitable position
within a boundary defined by the circulating path of travel and a
number of sterilizing lamps mounted longitudinally on the underside
of the cover plate for maintaining the served meals in the
individual compartments in a sanitary state.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and advantages of the present
invention will become apparent from the following description and
appended claims, taken in conjunction with the accompanying
drawings which show by way of example only preferred embodiments of
the invention and in which:
FIG. 1 is a plan view showing the circulative catering table
construction according to the invention;
FIG. 2 is a side view, partly in section, of the circulative
catering table shown in FIG. 1;
FIG. 3 is a fragmentary plan view showing crescent plate members of
the circulating endless conveyer and an open-sided box-like
compartment fixedly mounted on a crescent plate for carrying a dish
or meal;
FIG. 4 is an exploded perspective view explanatory of the
connection between a chain strand and a crescent plate of the
conveyer and an open-sided meal-carrying compartment;
FIGS. 5 and 6 are diagramatic perspective views showing examples of
driving means for the endless conveyer.
DESCRIPTION OF PREFERRED EMBODIMENT:
Referring to the accompanying drawings and first to FIGS. 1 through
4, the circulative catering table of the invention comprises a base
frame structure or construction 1 of a rectangular or circular
shape in plan view. The base frame structure 1 includes an inner
and outer side walls 3 and 4 which define therebetween a circular
endless path of travel. In this circular endless path of travel,
there is mounted an endless conveyer 2 for transferring dishes or
meals in one direction therealong. A relatively narrow peripherical
fixed fringe table 5 is mounted substantially horizontally on the
outer side wall 4 close to the upper end thereof. The fixed fringe
table 5 is projected outwardly from the circumference of the outer
side wall 4 to surround the circulating path of travel in which the
afore-mentioned endless conveyor is running. A cooking table 6 is
provided a suitable position within the boundary defined by the
inner side wall 3 of the base frame structure 1. The inner and
outer wall 3 and 4 of the base frame structure 1 have a passage 7
of a suitable size to provide an access to the inner side of the
table.
As shown particularly in FIGS. 3 and 4, the endless conveyer 2
which runs in and along the circulating passage on top of the frame
1 is constituted by a series of crescent plates 8 each having a
swivel arm 9 extending downwardly from the underside thereof. These
crescent plates 8 are pivotally supported on a strand of an endless
chain which is formed from a plurality of chain units 11 each
connected with adjacent ones by means of pin links 12. The pin
links 12 are each provided with a vertical bore for receiving and
supporting the swivel arm 9 of the crescent plate 8. The crescent
plates 8 which are aligned end to end as shown in FIG. 3 can swivel
on the chain 10. The side wings of the crescent plates 8 are
slidingly supported on horizontal racks 13 which are formed by
folding the upper ends of the inner and outer side walls 3 and 4
inwardly angularly, the crescent plates 8 being thus in horizontal
alignment with each other to provide a substantially continuous
plane surface on the circulating path of travel.
The afore-mentioned endless chain 10 is applied around and meshed
with teeth of a horizontally disposed sprocket wheel 15 at each
corner of the table. The sprocket wheels 15 are each supported on a
vertical shaft 14 and one sprocket wheel 15 is connected to and
rotatingly driven from a driving mechanism 16 which is mounted at a
suitable position on the base frame structure 1. The driving
mechanism 16 is arranged, for example, such that rotation of a
driving motor is transmitted through a transmission or a reducer 18
to a worm gear 19, as shown in FIG. 5, which is in meshing
engagement with a worm wheel 20 fixedly mounted on the
afore-mentioned vertical shaft 14 of the sprocket wheel 15.
Alternatively, the vertical shaft 14 may be imparted with rotation
by means of a geared motor 21 which is connected thereto by a
transmission chain 22.
Overhead the endless circulating conveyer 2 which carries a series
of open-sided box-like compartments as will be discussed in greater
detail hereinlater, there is provided a roof-shaped cover plate 23
which is formed, preferably, from a transparent material such as a
transparent glass sheet retained in a framework including angular
corner frames 25. The transparent cover plate 23 is mounted on the
inner side wall 3 of the base frame structure 1 by means of a
number of posts 24 of an inverted L-shape in parallel spaced
relationship to the endless conveyer 2. The cover plate 23 which is
coextensive with the endless conveyer 2 has mounted on the
underside thereof a number of sterilizing lamps 26 end to end in
the longitudinal direction, for sterilizing the meals or dishes
which are circulatively transferred on the endless conveyer 2.
Preferably, a glass refrigerating box 27 is placed on the cover
plate 23 in a position in front of the cooking table 6 for storing
and displaying food stuff or material to be cooked or served.
The crescent plates 8 are formed with screw holes 28 for detachably
mounting thereon open-sided box-like compartments 29 by means of
screws 31. The compartments 29 are opened on the lateral and rear
sides to present a substantially U-shaped cross-section as shown in
FIG. 4. When mounting the compartment 28, the bottom plate 30 is
superposed on the crescent plate 8 and secured thereto by threading
a screw 31 into the screw hole 28. The compartments 29 are
preferably formed from a hard synthetic resin material. When a meal
is placed in the compartment and transferred on the endless
conveyer along the circular path of travel, the customers can see
it through the open sides of the compartment 29. The top wall 32 of
the compartment 29 has an aperture or opening 33 for receiving
irradiation from the sterilizing lamps 26.
When the circulative catering table construction of the invention
as described hereinabove, a cook stations inside the circulating
endless conveyer 2 for cooking food on the cooking table 6 and
placing cooked dishes or meals one by one in the consecutively
aligned compartments 29 on the moving conveyer 2 so that customers
can stand or sit on chairs in front of the fixed circular fringe
table 5 and take or choose a desired dish among those which are
circulatively transferred by the endless conveyer 2. The
circulative catering table of the invention can thus contribute to
laborsaving to a considerable degree and makes it possible to serve
a variety of dishes with a high efficiency. It will be understood
that, coupled with the cover plate 23 and the sterilizing lamps 26
overhead the dish transferring circular endless conveyer 2, the
provision of the compartments 29 serves to maintain the dishes or
meals in sanitary conditions against dusts and putrefaction.
The foregoing is considered as illustrative only of the principles
of the invention. Further, since numerous modifications and changes
will readily occur to those skilled in the art, it is not desired
to limit the invention to the exact construction and operation
shown and described, and accordingly, all suitable modifications
and equivalents which may be resorted to are understood to be
falling within the scope of the invention as claimed.
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