JPH0326203Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field to Which the Invention Pertains] The present invention relates to the structure of a lock that opens and closes inside a room, and is constructed by combining a magnet and a yoke so as to be stably held in two set positions.

[Prior art]

Conventionally, ordinary locks have been opened and closed by mechanical operation, and the knob has been manually pressed and rotated to lock the lock. Therefore, there are two hand movements when locking the door. The same applies when unlocking.

[Purpose of invention]

The purpose of this invention is to "push" the lock and unlock it.
Alternatively, it is possible to provide a lock that is easy to operate so that it can be done simply by "pulling" it.

[Structure of the idea]

The present invention includes a lock rod that is movable in the axial direction between a first position and a second position, a magnet (magnetic material) attached to the lock rod, and a lock rod that is movable in the axial direction between a first position and a second position.
This lock is made up of two magnetic bodies (magnets) provided at positions adjacent to the magnet when the lock is in the position.

The use of such a lock can be applied, for example, as an opening/closing lock mechanism for a sash window, but is not limited to this, and can also be applied to doors of various devices.

〔Example〕

The operating principle of the present invention will be explained below with reference to the drawings.

Figures 1a, b, and c are plan views and cross-sectional views of the main parts of the present invention, where 1 is a shaft movable in the axial direction, and 2 is a magnet attached to the shaft 1, which is magnetized in the radial direction as shown in the figure. has been done. 3 is a first yoke, and 4 is a second yoke, both of which are fixed. At the time shown in FIG. 1b, the magnet 2 and the second yoke 4 are attracted to each other and held in a stable state. Next, when the shaft 1 is pushed by hand in the direction of the arrow, it moves to the position shown in FIG. When the shaft 1 is pulled in the direction opposite to the arrow from the position shown in FIG. 1c, the magnet 2 attracts the second yoke 4 and is held in a stable state.

FIG. 2 shows the flow of magnetic flux during attraction in the state shown in FIG. 1c. The magnetic flux emitted from the north pole of the magnet 2 passes through the yoke 3 and returns to the south pole as shown in the figure, and the yoke 3 and the magnet 2 attract each other.

FIG. 3 shows a cross-sectional view of an embodiment of the present invention applied to a sliding door.

A lock 10 is housed in a receiving frame 6 of a sliding door 5.
The lock 10 includes a case 11 and a lock bar 12 provided inside the case 11 so as to be able to come out and go out from the case 11.
A ring-shaped magnet 13 is attached to the lock rod 12, and a ring-shaped first yoke 14 and a second yoke 15 are provided inside the case 11 at regular intervals.
It consists of The outer diameter of the magnet 13 is the first yoke 14,
It is made to be slightly smaller than the inner diameter of the second yoke 15. A stopper 121 is provided on the locking rod 12. This stopper 121 engages with the second yoke 15 and the inner wall of the case 11, so that the magnet 13 is positioned at a first position adjacent to the first yoke 14 (FIG. 3b) and at a second position adjacent to the second yoke 15. (Fig. 3a). The sliding door 5 has a hole 51 into which the tip of the locking rod 12 can fit, at a position corresponding to the tip of the locking rod 12 when the sliding door 5 is in the closed position.
is provided. Note that the lock bar 12 may be magnetic or non-magnetic as long as it is a rigid body.

Figure 3a shows the unlocked state, and the lock bar 12 is attached to the magnet 1.
3 and the second yoke 15 attract each other and are held in a stable state. When the lock bar 12 is pushed in the direction of the arrow in FIG. 3a, the locked state shown in FIG. 3b is achieved, and the lock bar 12 is held in a stable state by the attraction between the magnet 13 and the first yoke 14. Of course,
When the lock bar 12 is pulled in the direction of the arrow in the state shown in FIG. 3b, the lock becomes unlocked as shown in FIG. 3a.

As another embodiment of the present invention, as shown in FIG.
A stopper 121 is formed integrally with the lock rod 12 by arranging two ring-shaped magnets 13a and 13b in the case 11 so as to be positioned at a constant interval on the outer periphery of the lock rod 12 made of a magnetic material.
By changing the position of , the same function as in FIG. 3 can be provided.

[Effect of idea]

As described above, according to the present invention, the lock can be opened and closed simply by "pushing" or "pulling" with the hand, which simplifies the opening and closing operations. Additionally, the attraction force between the magnet and yoke holds it in the set position, so it can be used safely as a lock.

[Brief explanation of the drawing]

Figures 1a, b, and c are respectively a plan view and a cross-sectional view for explaining the operating principle of the present invention, and Figure 2 is a diagram showing the flow of magnetic flux for explaining the operating principle of the present invention. 3a and 3b are cross-sectional views of one embodiment of the present invention, and FIG. 4 is a cross-sectional view of another embodiment of the present invention. In the diagram, 5 is a sliding door, 6 is a receiving frame, 10 is a lock, and 11
is the case, 12 is the lock bar, 13, 13a, 13
b is a magnet, 14 is a first yoke, and 15 is a second yoke.

Claims (1)

[Scope of utility model registration request] In a lock that locks by inserting a locking rod into a case forming an insertion hole, the locking rod is
The lock bar is movable in the axial direction between a first position and a second position set in the case, and a magnetic material is fixed to the outer periphery of the lock bar, and when the lock bar is unlocked, the lock bar is movable in the axial direction between a first position and a second position set in the case. a stopper that engages with a portion of the lock bar to prevent the lock bar from coming off; first and second magnetic bodies are provided at the first and second positions in the case, respectively; . A lock, characterized in that at least one of the magnetic material of the lock bar and the first and second magnetic materials is a magnet.