WO2004078013A1

WO2004078013A1 - Battery-powered roasting spit

Info

Publication number: WO2004078013A1
Application number: PCT/HR2003/000008
Authority: WO
Inventors: Drazan Krolo
Original assignee: Drazan Krolo
Priority date: 2003-03-03
Filing date: 2003-03-03
Publication date: 2004-09-16
Also published as: AU2003216563A1

Abstract

The battery-powered roasting spit, according to this invention, is a compact looking apparatus on which meat is pulled and fixed. In the spit back section (A), which itself does not rotate, there is housed the low-voltage DC power source (3), electric motor (8) with reduction gears (9), which power the spit middle sections (B) and (C) with the meat that is being roasted, at the best roasting speed (4 to 10°/min). Under the spit front section (D) and front section (A), which do not rotate, there are placed supports (23) or they are hung at the grip-points (24). Thanks to screws, the roasting spit is easily disassembled into several sections of the same length for easier transportation and storing. It is light, provided with own power source and silent. The battery-powered roasting spit is fit for using at all locations, especially at outdoor picnics, since it does not depend on outer electricity source.

Description

BATTERY-POWERED ROASTING SPIT

INVENTION DESCRIPTION

1. FIELD OF APPLICATION

The invention relates to roasting spit powered by iow-voltage DC electricity obtained from dry batteries that are housed, together with the electric motor, in the very roasting spit. The roasting spit is used for roasting of meat, especially whole lambs, pigs, goats, poultry, etc. In the International Patent Classification, it is classified as A 47 J 37/04, Spits.

2. TECHNICAL PROBLEM

Often we wish to prepare some roast outdoors, far from any electricity supply. We also want turning the spit to take as little of our time as possible, so that we may engage in play and fun.

The technical problem that is solved by this invention relates to a roasting spit that consists of several parts, neatly and practically packed for transportation. The spit is powered by DC electricity from dry batteries, housed, together with electric motor, in the very spit. The rotation speed is adjustable to the time required for quality roasting.

3. STATE OF THE ART

Nowadays, there are various sorts of spits available. The best known is the wooden, single-piece spit, turning by its whole length and manually. Its drawbacks are its length, since it is made of one piece, and friction in supporting points while being turned, because it has no bearings, and its uneven speed of rotation. The manual turning is painstaking. It is inflammable and lasts relatively shortly. There are also available metal spits, made of one or more parts, turned by their entire length and manually. Such spits may also be turned by a separate electric motor powered by battery or community-network electricity. In this case, the electric motor powers the spit, which is supported in two points, via reduction gears and a chain or a belt. Its complicated outer power, length and weight make it impractical, especially if it is to be transported and used at places with no electricity supply. The entire spit is bulky, and its using the 220 V power supply makes it dangerous.

4. DISCLOSURE OF THE INVENTION

The essence of the invention is a battery-powered roasting spit that consists of several sections, the front and the back one being static and the middle ones, that carry the meat, rotating during roasting the meat above fire. The spit is made as a straight tube or a combination of tubes and sticks, narrow, separable and easy to transport. In the back section of the stick, there are housed dry batteries and electric motor with reduction that powers the middle section of the spit. The front section is sharp-ended for easy passing through the meat. In the middle section, there are several small holes for passing the wire to fix the meat to the spit. The spit is supported under the front and the back sections, which do not rotate, or is hung by these two sections. By turning the battery-chamber cap, the spit is turned on and off. The spit rotates fully automatically, silently, and at the speed adjusted to the sort of the roast (4 to 10 min).

5. ILLUSTRATION DESCRIPTIONS

Figure 1. shows battery-powered spit assembled, in this case, consisting of four sections. Figure 2. shows a partly disassembled spit presented in oblique perspective. Figure 3. shows the back section A and part of the middle section B of the spit in cross section. Figure 4. shows the front section D and part of the middle section C of the spit in cross section. Figure 5. shows the spit with supports 23 under the front section A and the back section D. Figure 6. shows the spit hung at grip-points 24 at the front section A and the back section D.

6. DETAILED DESCRIPTION OF AN INVENTION EMBODIMENT

The invention embodiment shown in Figs. 1 and 2 consists of four sections: back section A, middle section B, middle section C and front section D. When the spit is being used, the back section A and the front section D remain static, supported or hung. The middle sections B and C, on which the meat is fixed, rotate during roasting. Sections of the battery-powered spit can be easily disassembled and put into proper transport container, to be assembled again where it is to be used. All sections may be of the same length.

The back section of the spit A, Figs. 1 , 2 and 3, comprises cap 1 , tube 2, batteries 3, contact 4, contact console 5, electricity conductors 6 and 7, electric motor 8 with reduction gears 9, coupling 10, bearings 11 and shaft 12. During roasting, the back section of the spit either rests on support 23 or is hung at grip-point 24. In the tube 2, immediately behind the cap 1 , there is the dry-battery chamber (this invention embodiment uses 4 1.5V dry batteries) that power a DC electric motor. The electric motor 8, of high number of revolutions, turns the reduction gears 9 that reduce the number of revolutions of the electric motor, so that the shaft 12 and the spit middle sections B and C rotate at the best roasting speed (4 to 10 min). The shaft 12 rotates in bearings 11, and is connected to the reduction gears 9 by the coupling 10. To the shaft 12, by the coupling 13 and screw 13a, there is connected the rotating section B of the spit.

The middle section B of the spit, Figs. 1 and 3, comprises coupling 13, screw 13a, tube 14 and ring 15. The tube 14 is firmly pulled on the coupling 13, and is made of a heat insulating material. This way, heat from the spit middle section B is only partly conducted to the spit back section A. This makes the bearings, the reduction gears, the electric motor and the batteries to last longer.

The spit middle section C, Figs. 1, 3 and 4, comprises tube 16, crew 16a and coupling 20. The tube 16 is firmly pullet on the coupling 20. The screw 16a connects the middle section C to the shaft 21 in the front section D. The tubes 14 and 16 may also be made as solid rods, however, tubes result in lesser weight. The spit middle sections B and C are mutually connected with the coupling 15, but could also be connected in any other known manner. The couplings 15 are threaded, to make the connection as easy to disconnect as possible. The spit middle sections B and C rotate during roasting and carry the meat that is being roasted. In the middle sections there are wholes 17 for passing the wire by which the meat is fixed to the spit.

The spit front part D, Figs. 1 and 4, comprises tube 18, bearings 19 and shaft 21. The tube 18 is coned at its end 22 for easier pulling the meat on the spit. During roasting, the spit front section D does not rotate but is rested on the support 23 or hung at the grip-point 24.

To prepare the battery-powered spit for use, the spit middle section B is connected to its back section A by fixing the tube 14 to the shaft 12 by the screw 13a through the coupling 13. In the similar way, the spit middle section C is connected to its front section D. After that, the spit middle sections B and C and mutually connected by the coupling 15. The spit is then pushed through the meat by its coned end 22, and the meat is fixed to the spit middle sections B and C by wire through openings 17, so that the meat rotates with the tubes 14 and 16 during roasting. The spit is then placed on supports 23, Fig. 5, under the tubes 2 and 18, or is hung at grip- points 24.

Following this, batteries are placed into the tube 2 and closed by the cap 1. The cap 1 also acts as the power switch, because when turned on it pushes the batteries and thereby establishes connection with the contact 4, this enabling electricity power to run and drive the electric motor 8. The spit is stopped by turning the cap 1 off until the connection of the battery 3 and the contact 4 is interrupted, which stops the electric motor.

When roasting is complete, the spit sections are disassembled and stored in an adequate transport container. The container may be produced in various shapes and of various materials.

7. INVENTION APPLICATION

The battery-powered roasting spit, according to this invention, is very handy for use in various occasions and at various locations. It is light, separable, easy to transport and provided with its own power.

It is made of stainless materials.

Electric motor with reduction gears and batteries are available in the market. Other parts can be produced in any better equipped mechanic shop.

Claims

PATENT CLAIMS

1. Battery-powered roasting spit, tube or rod shaped, powered by electric motor with reduction gears, and supported in two points, wh e re in , the battery- powered roasting spit, in the embodiment shown here, comprises: the spit back part (A) consisting of the tube (2) housing dry batteries (3) as the power source, the contact 4 to conduct the power from the batteries to the electric motor, the electric motor (8) with the reduction gear (9) that decreases the revolutions of the electric motor down to the best rotation speed of the spit middle sections, as required for roasting the meat, the coupling (10) to which there is connected the shaft (12) that transmits rotation of the spit back section (A), which itself does not rotate, to the spit middle section (B); the spit middle section (B), which rotates, consisting of the tube (14) that is by one end pulled on the coupling (13) through which, and by the screw (13a), it is fixed to the shaft (12) in the spit back section, any by other end is screwed to the coupling (15), by which it is connected to the spit middle section; the spit middle section (C), which rotates, and consists of the tube (16) that is by one end pulled on the coupling (20) through which, and by the screw (16a), it is fixed to the shaft (21) in the spit front section, any by other end is screwed to the coupling (15), by which it is connected to the spit middle section; the spit front section (D), which itself does not rotate, and consists of the tube (18) in which there is the shaft (21) with bearings (19), and which is coned at its front end (22).

2. The battery-powered roasting spit, as claimed in the Claim 1., wh e re in at the spit middle sections (B) and (C), which rotate, there are openings (17) for passing the wire by which the meat is fixed to the spit.

3. The battery-powered roasting spit, as claimed in the Claims 1. and 2., wh e re in , during roasting, the spit may be placed on supports (23) or hung at grip-points (24), under the spit front section (A) and back section (D), which two sections do not rotate during roasting.