JPH02140505A - Magnetism-holding yoke for gas bomb - Google Patents

Abstract

PURPOSE:To enable connecting a gas bomb properly, even if a loss of perpendicularity occurs to some extent between the axis of a bomb-connecting cylinder and the plane formed by a flange encircling a valve nozzle of the gas bomb, by fitting over the bomb-connecting cylinder a yoke made of a magnetic material to a size allowing it to come in contact all along the periphery with the valve nozzle-encircling flange by attaching the yoke to the bomb-connecting cylinder with a play therebetween and with perpendicularity between the yoke and the axis of the bomb-connecting cylinder. CONSTITUTION:A yoke 9 can be fitted around a governor 1 with a play by being fitted over a connecting cylinder 2 with holding pieces 11 in respective guide openings 4 and then by being turned around its axis to put the holding pieces in respective holding slits 3. In thus fitting the yoke 9, a stopper 12 is pressed into the connecting cylinder 2 with bending and then fitted in and along a groove 13 by lifting to secure the yoke 9 from coming off. To the yoke 9 are fixed a magnet 16 and a magnet cover 17. Merely by putting the flange 8 in contact with the rim 14 of the yoke 9 a gas bomb 6 is magnetically held by the yoke 9 and made ready to deliver gas with a valve nozzle 7 pushed in. Since the yoke 9, fitted over the connecting cylinder 2 with a play, can be tilted a little up and down and right and left, even magnetic holding power is secured even when the axis of the valve nozzle 7 is out of alignment with the axis of the connecting cylinder 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic holding yoke for gas cylinders used in gas appliances using gas cylinders, such as so-called cassette stoves.

(Prior Art) This type of gas appliance is provided with a complicated lever-operated attachment/detachment mechanism that presses the rear end of the cylinder toward the connection port in order to press and set the gas cylinder against the connection port.

Therefore, in order to be able to attach and detach the device more easily and to simplify the structure, the present inventor has developed a device that attracts and holds the area around the gas cylinder connection port using a magnet, and a portion of the device has already been filed.

(Technical Issue) In order to magnetically hold the gas cylinder, in the above-mentioned device, a certain magnetic circuit was formed from a ring-shaped magnet and a yoke that were evenly in contact with the connection part of the gas cylinder, and a sufficient magnetic holding force was obtained. However, even if the gas cylinder meets the required accuracy, there may be variations, or if there is a misalignment between the axis of the governor and the gas cylinder on a pressed steel gas appliance, this will appear as a difference in holding force. caused a problem.

In other words, it is fine if the yoke side and the cylinder side can be in perfect contact with each other around the entire circumference, but if this is not the case, there will be a partial difference in magnetic holding force.

The purpose of the present invention is to solve the above-mentioned problems, and even if there is some error or deformation between the yoke side and the cylinder side, it can be absorbed, and the yoke side and the cylinder side can always be in contact with each other on almost the entire circumference, so that an even magnetic holding force can be obtained. An object of the present invention is to provide a magnetic holding yoke for a gas cylinder.

(Technical Means) The above object is to provide an engaging portion in the cylinder connecting cylinder on the gas appliance side having a socket for receiving the valve nozzle of the gas cylinder, and to provide an engaging portion large enough to contact the flange surrounding the valve nozzle of the gas cylinder on the entire circumference. A mating engaging portion for the engaging portion is formed in a yoke made of a magnetic material having a yoke, and the yoke is loosely fitted into the connecting tube under the engagement while maintaining orthogonality with the axis of the connecting tube. This is achieved by a magnetically holding yoke for a gas cylinder configured to allow the gas cylinder to be connected correctly even when the orthogonality between the axis and the flange surface is lost to some extent.

(Example) To explain with reference to the drawings, 1 is a governor having a cylinder connecting tube 2 on the gas appliance side; 3 is an engaging portion provided on the outer periphery of a portion of a certain length from the end of the connecting tube 2; In the introduction part 4 along the axial direction of the connecting tube 2.

in the process of. The engaging portion 3 is located at a symmetrical position of the connecting tube 2.
There are several locations (Figure 3).

Reference numeral 5 denotes a socket provided in the connecting tube 2, which receives the valve nozzle 7 of the gas cylinder 6. The gas cylinder 6 has a cylindrical shape, and a ring-shaped flange 8 is provided on the end face of the gas cylinder 6. The valve nozzle 7 is protruded from the center of the flange 8 so as to be retractable.

Reference numeral 9 denotes a magnetic holding yoke that magnetically attracts the flange 8 of the gas cylinder 6, and has a shallow dish-like shape that opens toward the gas cylinder side, and is loosely fitted to the outside of the connecting tube 2 through an opening 10 formed in the center. be done.

Reference numeral 11 denotes a radial engagement piece protruding from the edge of the opening 10 at the center of the yoke. The engagement pieces 11 are provided in two axially symmetrical positions. It has a width that allows it to pass through the portion 4, and is engaged with the engaging portion 3 by turning in the circumferential direction. 12
A stopper 13 is a groove that engages with the stopper 12 and is formed between the engaging portions 3.3 of the connecting tube 2.

The aperture of the opening IO, the outer diameter of the connecting tube 2, and the dimensions of each engagement piece 11 and engagement part 3 are set so that each part 1O111 on the yoke side is set slightly larger so that each part can be fitted with some margin. As a result, the yoke 9 is attached to the connecting tube 2 in a loosely fitted state, and the yoke 9 is formed to be inclined to a certain extent with respect to the axis.

14 is the end edge of the yoke, which abuts the flange 8 and is connected to the yoke 9.
This is a part that forms a magnetic circuit with a ring-shaped magnet 16 housed in the accommodating part 15. 17 is a ring-shaped magnet cover. 18 and 19 are notches formed on the periphery of the yoke 9 and the magnet cover 17, respectively, and are formed to allow a member 20 for preventing erroneous attachment of the safety mechanism provided on the governor 1 to pass through. It is a part.

(Function) The yoke of the present invention having the above configuration has the engaging pieces 11, 1
1 to the position of the introduction part 4.4, and then turn it in the circumferential direction to position it in the engaging part 3, so that it is attached to the governor 1 in a loosely fitted state, and at this time, the stopper 1
2 is pushed into the connecting tube 2 while being bent as shown by the chain line in FIG. 2, and then raised to engage the groove 13 to prevent the yoke 9 from coming off. A magnet 16 and a magnet cover 17 are each fixed to the yoke 9.

To magnetically hold the gas cylinder 6 against such a yoke 9, all that is required is to bring the flange 8 into contact with the edge 14 of the yoke 9 and allow it to be attracted by the magnetic circuit. gas is discharged.

When holding the gas cylinder 6 on the yoke 9, if the axis of the connecting tube 2 and the axis of the valve nozzle 7 do not match, the flange 8 cannot fully contact the edge 14 if the yoke 9 is fixed. However, according to the present invention, the yoke 9 is connected to the connecting tube 2.
Since it is loosely fitted into the connecting tube 2 and can be tilted slightly vertically and horizontally from its original position perpendicular to the axis of the connecting tube 2, an even magnetic holding force can be obtained.

(Effect) Therefore, according to the present invention, even if there is deformation in the contact portion between the yoke side and the cylinder side that prevents their parallelism, this can be absorbed and the two can always be brought into contact over almost the entire circumference. The gas cylinder is magnetically held on the gas appliance side in an optimal state, and the gas cylinder can be set with the best holding force at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the magnetic holding yoke for a gas cylinder according to the present invention. FIG. 1 is an exploded perspective view showing the relationship with other components, FIG. 2 is an explanatory cross-sectional view, and FIGS. 3 and 4 are cross-sectional views. It is a front view. 1... Governor 2... Connection tube, 3... Engagement part,
5...Socket, 6...Gas cylinder, 7...Valve nozzle, 8...Flange, 9...Yoke, 10...
・Opening, 16...Magnet. Patent applicant Sun Frontier Technology Co., Ltd. Agent
Patent Attorney Tadashi IzawaFigure 1Figure 3Figure 4Figure 2

Claims (1)

[Claims] An engaging portion is provided in the cylinder connecting tube on the gas appliance side having a socket for receiving the valve nozzle of the gas cylinder, and the above-mentioned yoke is attached to a yoke made of a magnetic material having a size capable of contacting the flange surrounding the valve nozzle of the gas cylinder on its entire circumference. A mating engaging portion is formed for the engaging portion, and the yoke is loosely fitted into the connecting tube under the engagement while maintaining orthogonality with the axis of the connecting tube, so that the axis is perpendicular to the surface of the flange. A magnetic holding yoke for a gas cylinder configured to allow the gas cylinder to be connected correctly even when the magnetic properties are lost to some extent.