JPH0542494Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a push-turn knob suitable for heating appliances such as electric stoves and gas stoves.

[Conventional technology and its issues]

The ignition knobs used in conventional heating appliances such as electric stoves and gas stoves are not just a matter of turning the knob, but are designed to ensure safety.
For example, in the case of a knob for a gas stove, first push the knob toward the heating appliance body to release the locking shaft, and then rotate the knob to ignite. Push-turn type knobs made up of the following are generally popular.

However, with such conventional push-turn type knobs, if your body inadvertently comes into contact with the knob from diagonally in front of the knob and applies force to the knob, the knob will be pushed toward the body of the heating device. There is a problem in that the force and the component force for rotating the knob act simultaneously, and there is a risk that the heating appliance will ignite without your knowledge, resulting in an accident such as burns.

This invention was devised in view of the current situation, and its purpose is to separate the rotational lock release operation of the ignition shaft by the knob from the rotational ignition operation of the ignition shaft, so that the user's body can The purpose of the present invention is to provide a safe push-turn type knob that is completely free from fear of inadvertently operating the ignition even if the knob comes into contact with the knob.

[Means to solve the problem]

In order to achieve the above object, in this invention, a push-turn knob of a heating appliance having an ignition shaft that releases the rotation lock when pressed inward is engaged with the ignition shaft. A lock release member biased outwardly by a spring member, a pedestal member that fits and holds the lock release member movably forward and backward via the spring member, and engages with the pedestal member and the lock release member. and a rotating knob member, the knob member being rotated in one direction together with the lock releasing member and the base member while pressing the lock releasing member inward to release the lock. The device is characterized in that it is configured to perform an ignition operation for a heating appliance.

[Effect]

Therefore, when igniting with the push-and-turn knob according to this invention, first, without grasping the knob member, move the lock release member in the direction of the heating appliance against the biasing force of the spring member. The device is characterized in that the ignition lock state of the ignition shaft is released by pressing the ignition shaft, and then the ignition operation is performed by rotating the knob member in one direction while maintaining this state. It is.

〔Example〕

Hereinafter, this invention will be explained in detail based on an embodiment shown in the accompanying drawings.

As shown in FIG. 1, the push-and-turn knob 1 according to this embodiment includes a base member 2, a lock release member 3, a knob member 4, a coil spring 5,
It consists of

As shown in FIGS. 2 and 3, the pedestal member 2 is
A bottom part 21 formed in a ring shape, and this bottom part 21
The bottom part 21 has a screw hole 24. , 24 are formed therethrough, and a through hole 25 is formed in the inner cylinder portion 23. In addition, the symbols 26 and 26 in FIG.
This is a concave groove formed in 2.

As shown in FIGS. 4 to 7, the lock release member 3 includes a main body 31 formed in a substantially disk shape, and a shaft portion 32 projecting upward from the upper surface of the main body 31.
A cylindrical protrusion 33 protrudes downward from the lower surface of the main body 31, and a shaft hole 34 having a substantially D-shaped cross section is formed in the cylindrical protrusion 33.

As is particularly clear from FIGS. 4 and 5, the main body 31 has a concave notch 35 on the opposite edge of its outer periphery.
35 is formed, and as shown in FIGS. 6 and 7, an outer peripheral edge 36 of the main body 31 extends downward.

In the lock release member 3 configured in this way, the outer diameter dimension D of the main body 31 is equal to the outer cylindrical portion 2 of the pedestal member 2.
The outer diameter L of the cylindrical protrusion 33 is slightly smaller than the inner diameter L of the inner cylinder 23 of the base member 2. There is.

Further, the tip half portion of an ignition shaft 7 disposed in a heating appliance 6 such as an electric stove or a gas stove is inserted into the shaft hole 34 . At this time, the tip of the ignition shaft 7 is not inserted deep into the shaft hole 34, but is inserted to the extent that a slight gap s is formed, as shown in FIG. .

As shown in FIGS. 8 to 10, the knob member 4 includes a main body 40 formed in a flat plate shape, and screw holes 41 opened at both ends of the main body 40 in the longitudinal direction.
41, a shaft hole 42 which is opened between these screw holes 41, 41 and into which the shaft portion 32 of the lock release member 3 is attached, and a shaft hole 42 having the same shape as the notches 35, 35 of the main body 31 of the lock release member 3. Notch 43 consisting of
It is composed of and.

The longitudinal dimension N of the knob member 4 configured in this way is formed to be approximately the same length as the dimension n between the grooves 26 and 26 of the pedestal member 2.

The coil spring 5 is connected to the lock release member 3.
The lock is wrapped around the outer periphery of the cylindrical protrusion 33, and its upper end is disposed between the bottom of the main body 31 of the lock release member 3 and the upper end of the inner cylinder 23 of the pedestal member 2. The release member 3 is mounted so as to be biased toward the knob member 4 in a normal state.

The push-and-turn knob 1 configured in this way is
It is assembled as shown in FIGS. 11 and 12.

That is, first, the coil spring 5 is wound around the outer periphery of the cylindrical projection 33 of the lock release member 3, and then the cylindrical projection 33 of the lock release member 3 is inserted into the inner cylinder 23 of the base member 2. Insert. After assembling the pedestal member 2 and the lock release member 3 in this way, the shaft portion 32 of the lock release member 3 is held by the grip member 4.
The knob member 4 is inserted into the shaft hole 42 of the base member 2, and is mounted so that both ends of the knob member 4 fit into the grooves 26, 26 of the base member 2. At this time, both ends of the knob member 4 are fitted and locked into the notches 35, 35 of the lock release member 3.

After the knob member 4 is assembled to the base member 2 and the lock release member 3 in this way, the screw holes 24, 24 of the base member 2 and the screw hole 4 of the knob member 4 are assembled.
Screws 8 and 8 are screwed into the screws 1 and 41 to integrally connect the pedestal member 2 and the knob member 4. Of course, at this time, it is desirable to tighten the screws so that the heads of the screws 8, 8 do not protrude outward from the bottom surface of the base member 2.
In this case, preferably, the lock release member 3 is normally housed within the base member 2,
It is desirable to assemble the base member 2 in such a manner that it does not protrude too much from the upper end of the outer cylindrical portion 22 in the direction of the knob member 4 .

After the push-and-turn knob 1 is assembled in this manner, the tip half portion of the ignition shaft 7 disposed on the heating appliance 6 is inserted into the shaft hole 34 of the lock release member 3.

Incidentally, the ignition shaft 7 of the heating appliance 6 to which this invention is applied
The structure is similar to that of an ignition shaft to which a known push-turn knob is attached, so a detailed explanation thereof will be omitted here.

Next, when igniting the heating appliance 6 using the push-and-turn knob 1 assembled as described above,
First, without gripping the knob member 4, the lock release member 3 is pressed in the direction of the heating appliance 6 against the biasing force of the coil spring 5, thereby releasing the ignition shaft 7.
Release the rotation lock state. At this time, since a gap s is formed between the inner part of the shaft hole 34 of the lock release member 3 and the tip of the ignition shaft 7, the lock release member 3 is smoothly moved in the direction of the heating appliance 6. be able to.

Next, the ignition operation is performed by rotating the knob member 4 in one direction while maintaining this state. At this time, since both ends of the knob member 4 are fitted and locked into the grooves 26, 26 of the base member 2 and the notches 35, 35 of the lock release member 3, the rotation of the knob member 4 is accompanied by the rotational operation of the knob member 4. As a result, the pedestal member 2 and the lock release member 3 also rotate, and as a result, the ignition shaft 7
is rotated, for example, a gas flow path is opened and ignition is performed.

Further, when the knob member 4 is rotated and returned to its original position, the lock release member 3 returns toward the knob member 4 due to the biasing force of the coil spring 5, and the ignition shaft 7 is automatically opened. is set to the locked state.

[Effect of idea]

As explained above, in the push-and-turn knob according to this invention, when igniting, the lock release member is first pressed against the biasing force of the spring member without rotating the knob member. to release the rotating locked state, and then rotate the knob member together with the lock releasing member and the base member while maintaining the pressed state of the lock releasing member in order to ignite. The structure is such that the member alone cannot rotate in the ignition direction, and as a result, even if a body accidentally comes into contact with the knob member from an oblique direction and force is applied to the knob member,
The force that pushes the knob member toward the heating appliance body and the force that rotates the knob member do not work together at the same time.
The effect is that there is no risk that the heating appliance will ignite without your knowledge and cause an accident such as a burn injury, resulting in safety.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the configuration of a push-and-turn knob according to an embodiment of this invention, Fig. 2 is a plan view of the pedestal member, Fig. 3 is a sectional view taken along the line of Fig. 2, and Fig. 4 is 5 is a bottom view of the lock releasing member, FIG. 6 is a sectional view taken along the line of FIG. 4, FIG. 7 is a sectional view taken along the line of FIG. A plan view, FIG. 9 is a sectional view taken along line 8--FIG. 10 is a sectional view taken along line XX-X of FIG. 8, and FIG.
The figure is a cross-sectional view of the assembled state of the push-and-turn knob, viewed from one direction, and FIG. 12 is a cross-sectional view of the assembled state of the push-and-turn knob, seen from the other direction. Explanation of symbols, 1...Push-and-turn knob, 2...
Pedestal member, 3... Lock release member, 4... Knob member, 5... Coil spring, 6... Heater,
7... Ignition shaft, 23... Inner cylinder part, 33... Cylindrical projection part.

Claims (1)

[Scope of utility model registration request] A push-turn knob of a heating appliance having an ignition shaft that releases the rotation lock when pressed inward is provided with a lock release member that is urged outward by a spring member when engaged with the ignition shaft. , a pedestal member that fits and holds the lock release member movably forward and backward via the spring member, and a knob member that engages with and rotates the pedestal member and the lock release member, and the knob member is configured to ignite the heating appliance by pressing the lock releasing member inward to release the lock and rotating the lock releasing member and the pedestal member in one direction. A push-turn knob featuring