JP2001050458A - Gas hose for professional portable cookware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas hose for a professional portable cookware having a high reliability in a connecting structure by arranging a connecting part slidably housed in an axial direction while energizing a valve part in a closing position on at least one end part of a hose. SOLUTION: A gas hose for a professional portable cookware is connected between a cookware and a gas valve, and is provided with a connecting part for the gas valve on one end side of a hose main body 4 as well as providing a connecting part 6 for a cookware on the other end side. The hose main body 4 is provided with a copper wire reinforcing layer 4b, and is formed in a triple layer structure wherein a pressure resistance gas rubber is used in an inner layer 4c. In the connecting part for the gas valve, a connecting part is disposed on a universal screw capable of connecting to the gas valve which is usually disposed on a building structure body wall surface, and a metal fitting of a reusable hose capable of being cut at a field is employed in the hose and the connecting part. In the connecting part for the cookware, a lock member 8, a supporting ring 9 for the lock member 8, an operating part 19, and a valve member 11 are disposed on a socket part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas hose for a portable cooking appliance for business use, and more particularly to a gas hose used as a pipe for supplying gas to a portable cooking appliance for business use such as a fryer in a fast food store.

[0002]

2. Description of the Related Art Conventionally, stationary cooking utensils are commonly used as stationary cooking utensils. Therefore, metal piping is usually used as a pipe for supplying gas to such cooking utensils. . However, in recent years, with the problem of food poisoning caused by O-157 or the like being taken up, hygiene management tends to be regarded as important for business use such as the restaurant industry. For this reason, cleaning of kitchens and the like have been promoted, and there has been a demand for an environmental improvement for improving workability of repeated cleaning work.

[0003]

In response to such a flow, it has been proposed to make the cooking utensils for business use portable so as to improve the convenience of the cleaning work and the like. However, even if the cooking utensil is made portable, if the piping is metal, the cooking utensil cannot be easily moved and the like, and therefore the flexible piping must be used for the piping, and various hoses are applied. It is possible. However, when applying a hose, since it is necessary to supply a reliable gas in a normal operation, a high reliability is required for the connection structure.

Accordingly, an object of the present invention is to provide a gas hose for portable cooking utensils for business use, having a highly reliable connection structure in view of the above drawbacks.

[0005]

In order to achieve the above-mentioned object, a feature of the present invention is to provide a locking member protruding in the centrifugal direction in the vicinity of a plug insertion opening of a socket portion so as to be immersed therein. An operation part on the outer peripheral surface of the part, which restricts the movement of the locking member to the radially outward side and enables switching of the release position, is slidable in the axial direction of the socket part and radially outward of the locking member. The locking member is protruded inward in the radial direction of the socket portion as the operating portion is displaced from the unregulated position to the restricted position. The locking member is formed so as to be detachable from a groove formed in the plug, and is pushed into the socket by the plug when the plug is inserted into the plug insertion opening of the socket. A bearing ring is installed in a state of being urged toward the plug insertion port side, and the outermost diameter of the plug insertion port side is the maximum indentation of the locking member into the socket portion inward of the locking member bearing ring. A valve member having a small diameter formed so as not to reach the arrival position is provided therein, and a valve portion that can open and close a flow path formed inside the socket portion can be formed between the socket portion and the locking member support ring. The hose is provided with a connecting part which is slidably accommodated in the axial direction while urging the valve part in the closing posture in a simple posture.

[Effects] That is, when a plug is inserted into the plug insertion opening of the socket portion in connecting the connection portion and the plug, the locking member support ring and the valve member are
The plug is pushed by the plug and retreats into the connection portion while resisting the urging force. Further, when the plug is pushed in, the valve member displaces the valve body to the open state, and the support of the locking member by the locking member support member is released, and the support member moves in the radially inward direction. It is possible. Here, when the operation unit is in the non-operation state, when the locking member moves inward,
After the locking member is moved by the urging force, the locking member is displaced to a position that restricts the outward movement in the radial direction. Therefore, when the socket is inserted and the groove provided in the plug reaches the position where the locking member is provided,
The lock member is regulated in a state where the lock member is displaced into an engagement state with the groove by the operation portion. Therefore, a reliable connection state between the connection portion and the plug is obtained, and at the same time, an open gas flow path from the connection portion side to the plug side is ensured.

Further, when disconnecting the connecting portion and the plug, the operating portion is manually operated to a position where the restriction of the radial movement of the locking member against the urging force is released. Can be done. When this state is realized, the valve member,
The plug is pushed out of the connecting portion by an urging force for urging the locking member support ring. At this time, the locking member is recessed radially outward of the connection portion, and is supported by the locking member bearing ring in that position. Therefore, the state automatically returns to a state of waiting for the connection between the connection portion and the plug, and the gas flow path is also reliably closed.

Here, even if the operation is interrupted during the connection operation, even if the locking member support ring is caught by the locking member and does not completely return to the standby state, the valve member does not return to the standby state. Since the outermost diameter of the plug insertion port side is formed to a small diameter that does not reach the maximum immersion reaching position of the locking member toward the inside of the socket portion, at least the valve member returns to the standby position, and is surely The gas flow path can be closed, and safer use of the gas equipment becomes possible.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, a gas hose for a commercial portable cooking appliance of the present invention is provided between a cooking appliance 2 such as a commercial fryer and a gas stopper 3 which is installed on a support base 1 having a caster structure and is portable. The hose body 4 is provided with a connecting portion 5 for a gas tap at one end and a connecting portion 6 for a cooking appliance at the other end.

As shown in FIG. 1, the hose body 4 is
A reinforced gas hose using a weather-resistant, corrosion-resistant oil-based thermoplastic elastomer for the outer surface layer 4a, a steel wire reinforcing layer 4b, and a three-layer structure using a gas-resistant rubber for the inner surface layer 4c. .

[0011] The connecting portion 5 for the gas plug has a universal screw connecting portion that can be reliably connected to the gas plug 3 normally provided on the wall of the building structure.
After cutting to an appropriate length at the site, adopt a reusable hose fitting that can be connected.

The connecting portion 6 for the cooking utensil includes a locking member 8, a locking member support ring 9, and an operating portion 1 in a socket portion 7.
0, a valve member 11 is provided, and each member is configured as follows.

As shown in FIG. 1, a cylindrical socket portion 7 is provided.
A hole 12 is provided in the vicinity of the plug insertion port 7a, and the locking member 8 made of a sphere is mounted so as to protrude in the centrifugal direction and to be immersed. The hole 12 is provided with the locking member 8.
Can be held to the extent that it does not fall off while protruding radially inward of the socket portion 7, and has a tapered shape that can be taken out on the radially outer side of the socket portion 7. The member has a diameter larger than the thickness of the socket portion 7 and is set to a size capable of locking other members (the operation portion 10 and the groove portion 14 a) to a portion protruding from the socket portion 7.

On the outer peripheral surface of the socket portion 7, an operation portion 10 for restricting the outward movement of the locking member 8 in the radial direction and for switching the release posture is provided by fitting. This operating portion is slid in the axial direction of the socket portion 7 by a coil spring 7b interposed between the socket portion 7 and biased toward the plug insertion opening 7a,
The operation portion 10 is fitted and held by the retaining member 7c in a posture in which the locking member 8 is in the restricted state. The contact portion between the operating portion 10 and the locking member 8 is formed in a tapered shape, and the operating member 10 is displaced from the regulation release posture to the regulation posture, so that the locking member 8 is displaced.
Is configured to be able to protrude and move inward in the radial direction of the socket portion 7.

With such a configuration, the locking member 8
The locking member 8 is moved with the sliding operation of the operation unit 10.
Is formed so as to be freely detachable from a groove 14a formed in the plug 14. The socket portion 7 is provided with a locking member support ring 9 which is pushed into the socket portion 7 by the plug 14 when the plug 14 is inserted into the plug insertion opening 7a. It is housed in a state of being urged toward the plug insertion port 7a via a spring 7e. The plug 14 has an annular groove 14a on the plug insertion opening 7a side with respect to the socket 7, in which the locking member 8 can be engaged with the socket 7 while being connected to the socket 7.

Further, a valve member 11 is provided inside the locking member support ring 9, and the outermost diameter of the valve member 11 on the plug insertion port 7 a side is the socket portion 7 of the locking member 8. It is formed with a small diameter that does not reach the maximum immersion reaching position on the inward side. The valve member 11 has a plurality of openings 11a provided in a side wall portion, and slides in the socket portion 7 in the axial direction between the valve member 11 and the socket portion 7 via a conical coil spring 11b. The valve member 11 is supported so as to be urged toward the plug insertion port 7a, and a flange portion 11c provided on an outer peripheral surface of the valve member 11 comes into contact with a valve seat 7d provided on the socket portion 7 to prevent the valve member 11 from coming off. It is configured so as to act as a valve body V that blocks the flow path in the socket part 7 while being regulated. Accordingly, in a normal posture in which the valve member 11 contacts the valve seat 7d by the urging force of the conical coil spring 11b, the flow path inside the socket portion 7 is shut off, and the valve member 11 The socket inner surface shape is formed so that a flow path can be formed inside the socket portion 7 through the opening 11a when the coil spring 11b retreats against the urging force of the coil spring 11b.

The socket portion is formed so as to be freely assembled from a plurality of members, and is constructed so as to be reliably held in a state where the above-described members are installed.

With such a configuration, the gas hose for the portable cooking utensils for business use can be easily transported due to the flexibility of the hose body, and the position can be easily changed a little. Since it can be performed easily and easily and reliably, it can be used for elaborate cleaning work, etc., and is suitable for supplying gas to portable cooking utensils for business use. In addition, by employing a weather-resistant and corrosion-resistant oil-resistant rubber material, it is easy to sufficiently ensure the durability that should be given the highest priority as a commercial gas appliance.

[Brief description of the drawings]

FIG. 1 is a detailed view of a main part of a gas hose for a commercial portable cooking appliance of the present invention.

FIG. 2 is an overall view showing the usage state of the gas hose for portable cooking utensils for business of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support stand 2 Cooking utensil 3 Gas plug 4 Hose main body 5 Connection part for gas plugs 6 Connection part for cooking utensils 4a Outer surface layer 4b Fiber reinforcement layer 4c Inner surface layer 7 Socket part 8 Locking member 9 Locking member support ring 10 Operating part DESCRIPTION OF SYMBOLS 11 Valve member 12 Hole 13 Locking member 14 Plug

Continuing on the front page (72) Nobuo Tanaka, Inventor Osaka Gas Co., Ltd. 1-3-1, Kitako Shiratsu, Konohana-ku, Osaka-shi, Osaka (72) Inventor Hiroshi Nagata 1030, Sanzai-cho, Gojo-shi Togawa Rubber Nara Factory F term (reference) 3J106 AA01 AA02 AB01 BA02 BB01 BC04 BD01 BE24 BE29 CA16 EA03 EB07 EC02 EC07 ED32 EE13 EF05 EF07 EF14 GA01 GA04 GA22 GB01

Claims (1)

[Claims] 1. A locking member protrudes in the centrifugal direction in a vicinity of a plug insertion opening of a socket portion and is provided so as to be immersible, and restricts and releases the outward movement of the locking member on the outer peripheral surface of the socket portion. An operation unit that enables posture switching is provided in a state where the operation unit is slidably slidable in the axial direction of the socket portion and is urged in a posture direction that restricts the outward movement of the locking member in the radial direction. With the displacement from the regulation release posture to the regulation posture, the locking member is configured to be able to protrude and move inward in the radial direction of the socket portion, and the locking member is detachably engageable with a groove formed in the plug. Forming a locking member support ring which is pushed into the socket by the plug when the plug is inserted into the plug insertion port of the socket portion, in a state where the locking member support ring is urged toward the plug insertion port side; A valve member having a small outer diameter formed so that the outermost diameter of the plug insertion port side does not reach the maximum immersion position of the locking member toward the inner side of the socket portion, and the socket portion and the locking member are provided. Between the bearing ring and the bearing, a valve that allows opening and closing the flow path formed inside the socket can be formed, and the valve can be slid in the axial direction while urging the valve in the closing posture. A gas hose for portable cooking utensils for business use, comprising a connection part provided at least at one end of the hose.