JPS6347924B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device for removably locking and fixing one member to another member, and the present invention relates to a locking device for removably locking and fixing one member to the other member.
It also aims to improve operational reliability.

In conventional locking devices, a spring is interposed between a pair of locking pins that protrude and retract in the axial direction, and the springs bias the locking pins in opposite directions, and an operation button is linked to the locking pin through an intermediate mechanism such as a cam mechanism. I was letting it happen. However, the above-mentioned device has a complicated structure and has a correspondingly poor operational reliability.

The present invention eliminates these conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

The figure shows an example implemented on an iron, namely:
Base 1 at the bottom, temperature control knob 2 at the front top
An inverted L-shaped guide groove 4 consisting of a vertical groove part 4a and a horizontal groove part 4b is formed on both sides of the iron main body 3 provided with the iron main body 3, respectively. Reference numeral 5 denotes a case-like handle that is open at the bottom and rear and has a boat shape similar to that of the iron main body 3, and a projection 6 that projects inward from the lower rear part of the handle is fitted into the guide groove 4. and is movably attached to the iron main body 3. 7 is a locking recess formed opposite to the projection 6, and 8 is an inclined surface similarly provided at the rear of the projection 6. Reference numeral 9 denotes a locking device disposed at the rear of the iron main body 3. The locking device 9
These include a push button 10 molded from synthetic resin, a lock pin 11 attached to the push button 10 and having a peripheral wall portion that protrudes and retracts from the horizontal groove portion 4b of the guide groove 4, and a lock pin 11 that urges the push button 10 and the lock pin 11 upward. It consists of a leaf spring 12. More specifically, from the push button 10, there is a hole 1 formed on the rear upper surface of the iron main body 3.
A pair of leg pieces 14 penetrating through 3 are vertically installed,
Further, a keyhole-shaped fixing groove 15 with a narrow entrance width is formed at the tip of each leg piece 14. On the other hand, the lock pin 11 has a small diameter portion 16 facing the leg piece 14. The lock pin 11 is attached by press-fitting the small diameter portion 16 into the fixing groove 15 while widening the entrance width of the fixing groove 15 by utilizing the elasticity of the leg piece 14. Of course, the lock pin 11 is attached after the leg piece 14 of the push button 10 is penetrated into the hole 13. One end of the leaf spring 12 is screwed to the lower surface of the iron main body 3, and the free end is in elastic contact with the lower part of the lock pin 11 located between the legs 14. 17 is formed in the longitudinal direction on both sides of the iron main body 3, and a part is formed in the horizontal groove portion 4b of the guide groove 4.
The end of the lock pin 11 is fitted into this groove 17.

Now, to describe the movable operation of the handle 5, when the handle 5 is moved downward to position the protrusion 6 below the vertical groove 4a of the guide groove 4, the iron main body 3 and the temperature control knob 2 are moved by the handle 5. This makes it possible to make a small and compact iron that is convenient for carrying around (Fig. 1, Fig. 7 A).
When using the iron next time, move the handle 5 upward as shown by the arrow a in FIG. 7A (FIG. 7B), and then move it backwards as shown by the arrow b. At this time, the protrusion 6 also moves up the vertical groove part 4a of the guide groove 4, and then slides backward in the horizontal groove part 4b. and,
As the lateral groove 4b of the protrusion 6 slides, the inclined surface 8 once moves the lock pin 11 downward, and the protrusion 6
allow progress. When the protrusion 6 reaches a predetermined position, the locking pin 11 engages with the locking recess 7 under the urging force of the leaf spring 12, thereby locking the handle 5. This state is the position of the handle 5 when using the iron (second
By sliding the handle 5 backward, the temperature control knob 2 can be operated, and the tip of the base 1 can also be seen, making ironing easier. When using this iron, the rear of the handle 5 substantially surrounds the upper part of the push button 10, so that the push button 10 will not be accidentally pressed and the lock of the handle 5 will not be released inadvertently. This allows for reliable ironing work.

To return the handle 5 to its initial state, press the push button 10.
Move the lock pin 11 down through the (Fig. 6 B),
This can be done by disengaging the engagement with the locking recess 7.

In the above embodiments, the application to an iron has been described, but it goes without saying that the present invention can be used for other applications besides irons.

As described above, in the present invention, a lock pin is attached to a leg piece, and an operation button is movably provided on one member and is biased in one direction by a leaf spring whose one end is in contact with the lock pin. By displacing the button integrally with the lock pin parallel to its axis, the lock pin is engaged and disengaged from the locking part of the other member, so it is much easier to use than conventional ones. It is possible to greatly simplify the configuration and greatly improve the effectiveness in terms of assembly and cost. Furthermore, since the lock pin is directly attached to the operation button, operational reliability is significantly increased and there is no risk of failure. Furthermore, since the lock operation button is surrounded by the other member, there is no possibility of erroneous operation of the operation button during use, and inadvertent release of the lock can be reliably prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an iron showing an embodiment of the present invention, FIG. 2 is a perspective view of the iron in use, FIG. 3 is an exploded perspective view, and FIG. 4 is an exploded perspective view of the locking device.
5 is a sectional view of the same, FIGS. 6A and 6B are illustrations for explaining the same operation, and FIGS. 7A, 7B and 7A are illustrations for explaining the movable operation of the handle. 3... One member (iron main body), 5... Other member (handle), 7... Locking part (locking recess), 1
0...Operation button (push button), 11...Lock pin, 1
2... leaf spring, 14... leg piece.

Claims (1)

[Claims] 1. A lock pin is attached to the leg piece, and an operation button is movably provided on one member and is biased in one direction by a leaf spring whose one end is in contact with the lock pin, and is formed on the side wall of the one member. The lock pin is fitted into the guide groove by exposing the end of the lock pin to the approximately L-shaped guide groove and displacing the operation button integrally with the lock pin parallel to its axis. When the locking pin is engaged with the locking part of the other member, which is attached to one member so as to be movable in the vertical and longitudinal directions, the operation button is A locking device surrounded by a member.