JPH0338379Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a continuously adjustable movable bracket that can lock a latch bolt in a stable state.

(Prior art and its problems) Conventional receiving metal fittings of this type include one with the structure shown in Fig. 1 and one with the structure of a "lock catch seat" described in Japanese Utility Model Application Publication No. 58-35559. However, in the case of the former, a stopper plate a that locks the latch bolt is sandwiched between a fixing plate b and a base c in a sandwich-like manner, and is configured so that it can slide back and forth using mounting screws d and d as guides. , this stopper plate a consists of these three members a,
When attaching b and c to the door frame, they are clamped and fixed between fixing plate b and base c by tightening mounting screws d and d, so the latch bolt of the door lock attached to the door will not play. The adjustment for locking without any problem must be done before tightening the mounting screw, that is, when it is temporarily fixed, which is troublesome, and because the guide hole is a long hole in the front and back horizontal direction,
If the mounting screws become even slightly loose, the stopper plate a will be pushed by the latch bolt that engages with it and slide, resulting in misalignment, so it may be necessary to readjust it before tightening the mounting screws again. However, even in the latter case, the catch sub-body with which the latch bolt engages is configured to be able to slide back and forth with respect to the catch base via a clamping means (screw) guided by a horizontal elongated hole. Therefore, like the former, when the clamping means (screws) loosen, the catch sub-body is pushed by the latch bolt and slides, resulting in positional displacement.

Therefore, the front-rear sliding means, which is a combination of a vertical long hole and an inclined long hole, used in the "latching and tightening device for sliding doors" described in Publication of Utility Model Publication No. 42-5358 was applied to the lock catch. A vertical elongated hole is drilled in the catch base and an inclined elongated hole is drilled in the catch sub-body, and the parts are assembled via screws inserted into these elongated holes.
Even if the screw loosens to some extent, the seat subbody no longer shifts its position in the front-back direction, but the screw moves vertically due to the action of the slanted long hole, and this movement prevents the screw from loosening. This caused the problem of loosening considerably and eventually causing rattling.

(Purpose of the invention) In order to solve the problems of the above-mentioned prior art, the present invention replaces the vertical long hole of the above-mentioned prior art with a long hole that is inclined in the opposite direction to the inclined long hole.
A movable receiving bracket for the latch bolt that can securely hold the locking member of the latch bolt without wobbling, and also allows the locking member to move a large distance with a small distance of movement of the screw inserted into both elongated holes. The purpose is to provide the following.

(Disclosure of the invention) The movable receiving bracket for the latch bolt according to the invention is attached to the bottom plate 2 ₁ from the front on the back side of the fixing plate 1 which has one side part 1 _{1 and the latch bolt fitting opening 1 2 formed} in the center part. A casing 2 having a long hole 2 ₂ inclined toward the rear is installed, and an engaging portion 3 ₁ in which the back surface of the latch bolt A engages is installed in the casing 2.
A movable plate 3 having a long hole ₃₂ inclined in the opposite direction to the long hole 22 of the casing is fitted in the movable plate ₃ so as to be slidable back and forth, and the bottom plate ₂₁ is prevented from rotating. It is characterized by a structure in which a screw 5 inserted through an elongated hole 3 ₂ of a movable plate 3 is screwed and fixed into a screw hole 4 ₁ of a nut 4 facing on the back side of the movable plate 3 .

The casing 2 is provided with upper and lower ears 2 ₃ , 2 ₃ that face the back surface of the fixing plate 1 , and these ears have mounting holes 2 ₄ that match the mounting holes 1 ₃ , 1 ₃ of the fixing plate 1 . ，
2 ₄ are provided. Further, guide pieces 3 ₃ , 3 ₃ are formed on the upper and lower sides of the movable plate 3 so that it can slide only horizontally within the casing 2, and a stepped portion formed on the fixed plate 1 at the end of the engaging portion 3 ₁ A tongue piece 3 ₄ is formed to face the 1 ₄ surface. Natsu 4 has forked legs 4
₂ and 4 ₂ are formed, and the groove 4 ₃ between the legs 4 ₂ and 4 ₂ is engaged with the pin 6 fixed to the back surface of the bottom plate 2 ₁ of the casing 2, and the screw 5 is inserted into the screw hole 4 ₁ of the nut 4. _A rotation stopper is applied to prevent rotation even when screwed _{, and the legs 4 2 ,}
4 ₂ is sandwiched to prevent nut 4 from falling out.

(Function of the invention) Next, in accordance with the above-mentioned structure of the invention, the mounting method and operation of the metal fitting of the invention will be explained with respect to the illustrated embodiment.

That is, the lug 2 of the casing 2 is attached to the back surface of the fixed plate 1.
₃ and 2 ₃ face each other so that the mounting holes 1 ₃ and 2 ₄ coincide with each other, and fit the movable plate into the casing 2 so that its tongue piece 3 ₄ faces the stepped portion 1 ₄ of the fixed plate 1. ,
A screw 5 is inserted into the overlapping portion of the long hole 3 ₂ of the movable plate 3 and the long hole 2 ₂ of the casing 2, and the nut 4 has its end facing the back surface of the bottom plate 2 ₁ of the casing 2.
By screwing into the screw hole ₄₁ , the fixed plate 1, casing 2, and movable plate 3 are integrated. The casing 2 is fitted into a recess formed in a predetermined location of the door frame, and the fixing plate 1 and the common mounting holes 1 ₃ , 2 ₄ of the ears 2 ₃ , 2 ₃ of the casing 2 are connected 1
It is installed by passing the mounting screws through ₃ and 2 ₄ and tightening them to the door frame. After installation, close the door and observe that the latch bolt A is fitted into the fitting opening ₁₂ of the fixed plate 1, and check how much space there is between the engaging part ₃₁ of the movable plate 3 and the latch bolt A. After memorizing the location, open the door, move the casing 2 along the long hole 2 ₂ while loosening the screw 5 with a screwdriver, and the movable plate 3 will also be pushed horizontally by the slanted edge of the long hole 3 ₂ . Since it slides, the movable plate 3 will be fixed at an appropriate position by making this sliding distance match the previously memorized dimension and tightening the screw 5 at this position.

In this fixed state, when a force is applied to the movable plate 3 to pull it out due to the engagement of the latch bolt A, the screw 5 is pushed down by the action of the elongated hole ₃₂ which is inclined downward to the right in the state shown in Fig. 3. However, due to the effect of the elongated hole 2 ₂ of the casing bottom plate 2 ₁ which slopes upward to the right in the opposite direction to the elongated hole 3 ₂ , a force that tries to push up the screw 5 acts on the opposite side.
is locked at this position.

In other words, even if force is applied to the movable plate 3 from either the front or rear direction, only a shearing force is applied to the screw 5, and no vertical force is applied, so even if the screw 5 becomes loose, there will be no wobbling at all. There is no problem and it will not come loose.

(Effect of the invention) As described above, according to the movable receiving bracket for the latch bolt according to the present invention, the movable plate that locks the latch bolt and the casing that accommodates the movable plate so as to be slidable back and forth intersect with each other, and in the opposite direction. Since we used a method of drilling oblique long holes in each direction and fixing the intersections of these long holes with screws, once the position of the movable plate was adjusted, there was no need to loosen the screws like with movable brackets using conventional technology. There is no wobbling due to loosening of the screws, so it can be used in a stable state for a long period of time.Also, when adjusting the position of the movable plate, the long holes are slanted in opposite directions, so the screws can be easily adjusted. The movable plate can be moved by a large amount with only a small movement, and adjustment work can be easily performed, which has many practical effects.

In the embodiment shown in FIG. 2, since the tongue piece 3 of the movable plate 3 protrudes from the surface side of the fixed plate 1, the fixed plate 1 is provided with a stepped portion ₁₄ which is flush with the guide function. However, as in the embodiment shown in FIG. 6, when the back surface of the fixed plate 1 is made to face the fixed plate 1, the fixed plate 1 does not require a step, and the tongue piece ₂₅ is formed on the casing 2. If the tongue pieces 3 ₄ of the movable plate 3 are sandwiched between the fixed plate ₁ and the guide plate 3 , a guiding effect can be achieved, and thereby the guide pieces 3 ₃ and 3 ₃ of the movable plate 3 can be omitted. The tongue piece 3 ₄ of the movable plate 3 itself is not necessary if another guide function is provided, and in any case, in the present invention, the tongue piece 3 ₄ of the movable plate 3,
The guide pieces 3 ₃ , 3 ₃ are not an essential requirement.

Furthermore, since the legs 4 ₂ and 4 ₂ of the nut 4 engage the pin 6 to prevent them from rotating together with the bolt 5, the distance traveled by the movable plate 3, that is, the distance traveled by the bolt 5, is reduced. If you want to make it bigger, add feet 4 ₂ ,
It is sufficient that the engagement with the pin 6 is not released even if the length 4 ₂ is lengthened, and this is not limited to this embodiment. Such measures may be taken.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is an exploded perspective view of a conventionally known receiving fitting, FIG. 2 is an exploded perspective view of a receiving fitting according to the present invention, and FIG. 3 is an exploded perspective view of the receiving fitting according to the present invention. 4 is a longitudinal sectional view taken along the line A--I in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line RO-RO in FIG. 3. FIG. 6 is an exploded perspective view of a receiving metal fitting representing another embodiment of the present invention. 1... Fixed plate, 2... Casing, 3... Movable plate, 4... Nut, 5... Screw.

Claims (1)

[Scope of utility model registration request] A contact part ₁₁ , which the inclined surface of the latch bolt A contacts, is formed on one side, and a fitting opening ₁₂ for the latch bolt _A is formed in the center. A casing 2 having an inclined elongated hole 2 ₂ is installed, and an engaging portion 3 ₁ in which the back surface of the latch bolt A engages is provided inside the casing 2.
A movable plate 3 having a long hole ₃₂ inclined in the opposite direction to the long hole 22 of the casing is fitted in the movable plate ₃ so as to be slidable back and forth, and the bottom plate ₂₁ is prevented from rotating. A movable receiving metal fitting for a latch bolt, which is formed by screwing and fixing a screw 5 inserted through a long hole ₃₂ of a movable plate 3 into a screw hole ₄₁ of a nut 4 facing the back side of the latch bolt.