JPH03212589A - Latch of door knob latched/dislatched by magnetic force and receiving stand thereof - Google Patents

Abstract

PURPOSE:To facilitate operation of latching and dislatching a door by covering a latch with a magnet, and fastening the latch to a retractor formed by an edged core portion and a spring, and mounting a magnetic material also to a receiving seat for the latch. CONSTITUTION:A retractor 12 is formed in a latch case 11 by an edged core portion 13 and a spring 14 and a latch 16 is disposed at the end portion 12a of the retractor 12 via a latch tail portion 17. The latch 16 is made of a magnet and is formed by covering its circumference with a metal so as to fix it. A receiving seat 60 for the latch 16 is formed by an opening 62, two engagement portions 60a, 60b and a magnet 65 and the magnet 65 is engaged in the opening 62. The latch 16 is thereby adsorbed to the receiving seat 60 by magnetic forces so as to facilitate operation of latching and dislatching a door with the latch 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a latch and a seat for a door handle that are locked by attracting the latch and the seat by magnetic force.

[Prior Art] Conventionally, door handle latches have generally been of the type shown in the cross-sectional view in Figure 1 of the drawings, and are roughly wedge-shaped, and are held by the force of a spring into a catch plate attached to a forest or door frame. Types that are inserted and locked are known.

[Three problems to be solved by the invention] In the conventional technology, the door handle requires a soft spring to be attached to the rear of the latch to push out the latch, and the latch must be inserted deeply into the catch. It was necessary to rotate deeply. Further, the conventional catch seat is generally of the type shown in the front view of FIG. 6 of the drawings, and there is a danger that the latch guide portion 51 partially protrudes from the pillar and door frame.

[Means for solving the problem] A square core portion 13 is installed inside the latch case 11, and a spring 14 is installed inside the retractor 12 and the latch case 11.
is installed, and by applying a rotational force to the left or right direction to the square core part 13, the retractor 12 moves to the rear,
Retractor - Front 12a latch tail 17.27.37
The retractor 12 pulls the spring 1 and releases the force that causes the square core 13 to rotate in the left or right direction.
The force of step 4 returns it to its original position. At this time, latch 16.
26.36 is stopped by keeping it retracted. The retractor inspection item 12c and the latch tail 17.27 of the latch 16.26 are made magnetic to prevent the latch 16.26 from popping out due to centrifugal force when the door is opened or closed. When the door is closed, a magnetic force acts between the catch plate 6070.80.90 and the latch 16°26.36LL! ! 60.70.80.90
It absorbs. Also, the thread width of the wrap 16, 26, 36 is adjusted by the screw pitch of the latch tail 17, 27, 37.

The latch and catch of the door handle, which is composed of a combination of two or more mouth-acting parts, allows the door to be opened and closed with easier operation than conventional products, and the sound emitted from the latch when the door is closed disappears, making it easier to Alternatively, the seat attached to the door frame is safe because it has no protruding parts.

Second Embodiment] An example will be described with reference to the drawings. In FIG. 2, a square core part 13 is attached inside the latch case 11, and an inspection part 13a of the square core part 13 is engaged with a tractor rear inspection part 12b. . Retractor 12 and latch case 11
A spring 14 is installed inside the retractor, and the front part 12a of the retractor is provided with a latch tail 17 and a movable inspection item 12c. The latch tail 17 is fastened to the latch 16 by thread pitch.

FIG. 3 shows a metal fixing piece 1 surrounding the magnet 16a.
6b to form a latch 16.

The latch tail portion 17 is centered on the fixed piece 16b, and an adjustment portion 20 is provided at the center of the latch tip portion 16c.

FIG. 4 shows a metal fixing piece 2 surrounding the magnet 26a.
6b to form a latch 26.

The latch tail portion 27 is pivotally attached to the fixed piece 26b, and an adjustment portion 30 is provided at the center of the latch tip portion 26c.

The latch tip 260 has a convex shape with the magnet 26a slightly protruding from the fixed piece 26b.

In FIG. 5, the latch tail portion 37 is pivotally attached to the latch 36, and an adjustment portion 40f is provided at the center of the latch tip @aI 136c.

FIG. 6 shows a conventional seat 50 formed by a latch guide portion 51, an opening portion 52, and upper and lower screw holes 53 and 54.

In FIG. 7, an opening 62 in which the latch fits is provided inside the catch 60, and the opening 62 of the catch has a permanent magnet or a piece of iron recessed inside the opening, and upper and lower screw holes 63, 64. It is formed by

FIG. 8 shows a substantially rectangular opening 62 formed in the catch seat 60,
The locking parts 60a and 60b connect the magnet 65 with the opening facing the surface 6.
2a (this is fixed, and screw holes 6364 are formed at the top and bottom of the catch seat 60.

FIG. 9 shows a substantially rectangular opening 72 formed in the catch seat 70,
Lock the iron piece 75 to the opening rear surface 72a with the locking parts 7Qa and 70b, and then press it! The top and bottom of 70 are formed with screw holes 73 and 74.

In FIG. 10, a magnet 85 is seen firmly on the back side of the concave portion 80a of the seat 80, and screw holes 83 and 84 are formed at the top and bottom of the seat 80.

In FIG. 11, an iron piece 95 is clearly seen on the back side of the concave portion 90a of the seat 90, and screw holes 93 and 94 are formed at the top and bottom of the seat 90.

[Effects of the Invention: Since the present invention is configured as described above, it produces the following effects.

In the door handle latch of the first aspect, the door handle can be unlocked with a simpler operation than the conventional one, and the sound of the latch popping out is hardly heard.

In the door handle latch according to the second aspect of the present invention, the latch is prevented from popping out due to the centrifugal force of m during opening and closing.

In the door handle latch according to claim 3, the latch is prevented from popping out by centrifugal force generated when the door is opened, and when an iron magnetic fixing piece is used, a magnetic moment is generated when the door is unlocked.Claim 4 In the door handle latch according to claim 1i5, the latch case is used when the latch case is made of iron and is characterized by the action of magnetic force from the magnet in the catch. It is safe and does not stick out.

The seat for a door handle according to claim 6 is characterized by a latch made of iron.The seat for a door handle according to claim 7 is characterized by a latch made of a magnet.The seat for a door handle according to claim 8 is characterized by a latch made of iron. Adsorbs the latch and prevents damage to the magnet.

In the door handle catch seat according to claim 9, a magnetic latch is attracted.

[Brief explanation of drawings]

Figure 1 is a sectional view showing an example of a conventional product. Figure 2 is a sectional view. Figure 3 is a perspective view of a latch. Figure 4 is a perspective view of a latch. Figure 5 is a perspective view of a latch. 7 is a front view of the catch. FIG. 8 is a perspective view of the catch. FIG. 9 is a side view of the catch. FIG. 10 is a side view of the catch. A perspective view of FIG. 11 is a side view of the catch plate 1, 116, 16. 26°7, 17. 27°16a, 26a 50, 60. 70 65, 85 75, 95 Latch case 36 Latch 37 Latch tail magnet 80.90 Strike magnet iron piece 7); 5 Figure 37 Wrap R section

Claims (1)

[Claims] 1. A retractor (12) inside the latch case (11).
), a spring (14) is installed on the retractor (12) and the latch case (11), and a latch tail (17, 27, 37) is placed on the retractor tip (12a).
) A door handle latch characterized in that the latch (16, 26, 36) is installed through the latch (60, 70, 80, 90) and is locked by adhering to the catch seat (60, 70, 80, 90) by magnetic force. 2. Make the tip (16c) of the latch (16) flat,
Attach the magnet (16a) using the magnet fixing piece (16b).
2. The door handle latch according to claim 1, wherein the latch tail portion (17) with an adjustment mechanism is pivotally mounted inside the latch portion (17). 3. Make the tip (26c) of the latch (26) convex,
Attach the magnet (26a) using the magnet fixing piece (26b).
2. The door handle latch according to claim 1, wherein the latch tail portion (27) with an adjustment mechanism is pivotally mounted inside the latch portion (27). 4. Make the tip (36c) of the latch (36) flat,
2. A door handle latch according to claim 1, further comprising a latch tail portion (27) with an adjustment mechanism pivotally mounted therein. 5. Attach the magnet (6) to the catch (60, 70, 80, 90).
5, 85) and a door handle catch seat characterized in that a piece of iron (75, 95) is firmly fixed to the latch (16, 26, 36) and locked by magnetic force. 6. Attach the magnet (65) to the opening (62) of the catch (60).
6. The door handle catch seat according to claim 5, wherein: 7. The door handle catch according to claim 5, wherein an iron piece (75) is fixed to the opening (72) of the catch (70). 8. Place the magnet (85) in the recess (80a) of the catch (80).
6. The door handle catch seat according to claim 5, wherein: 9. The door handle catch according to claim 5, wherein an iron piece (95) is fixed to the recess (90a) of the catch (90).