JPH0743395Y2 - Drop tablet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a drop lock used for an opening of a building or the like, for example, an opening / closing door such as a doorway or a window, or an opening / closing door.

(Prior Art) This type of drop lock is commonly known as "French drop" and the like, and generally, it is a fixed mounting frame body mounted on an opening / closing member such as a door. A retaining rod that is held in the frame so as to be able to move up and down in the vertical direction and has a lower end that engages with a retaining hole that is provided on the fixed side such as the floor surface, and that is attached to the retaining rod. The operation piece is slidably inserted into a long hole (window hole) for a guide opened in the mounting frame, and the operation lever is moved up and down, rotated, and moved in and out to raise and lower the locking rod. , Such that the lower end of the locking rod is inserted into the locking hole on the fixed side in the lowered position (locked state), and disengaged from the locking hole in the raised position (locked state) Is. In this case, when the lock is installed on the outer surface side of the building, in order to effectively ensure the fitting of the locking rod and the locking hole at the time of locking, the locking rod of the locking side is adjusted to the depth of the locking hole on the fixed side. It is preferable to adjust the stroke amount.

Therefore, conventionally, a mounting screw is screwed from a radially outer side onto a ring that is fitted in a middle portion of the locking rod, and the ring is fixed to the locking rod so that the vertical position of the ring can be adjusted. The stroke amount of the
-130982 (see especially Figures 19, 23 and 24).

(Problems to be solved by the invention) However, in the above-mentioned conventional technique, the ring fixed to the locking rod so as to be vertically adjustable is housed in the mounting frame or the frame of the opening / closing member. If you notice an error in the stroke adjustment amount after attaching the drop lock to the open / close member, remove the lock from the open / close member once, and then change the fixing position of the ring again to change the stroke of the locking rod. It had to be adjusted again, and the stroke adjustment work after mounting the lock was very troublesome.

On the other hand, as a means to solve this, an operation window for ring adjustment is formed in the front portion of the attachment frame or the opening / closing member in addition to the guide elongated hole of the operation knob, and the vertical fixing position of the ring is adjusted from this operation window. It is possible.

However, this causes rainwater to invade the inside of the mounting frame and the opening / closing member from the operation window and corrode these members, and it is very difficult to operate the ring mounting screw from the operation window itself. It becomes work.

In view of the above situation, the present invention aims to make it possible to easily adjust the stroke of the locking rod after the lock is mounted while effectively preventing rainwater from entering the mounting frame and the opening / closing member. And

(Means for Solving the Problems) In order to achieve the above object, the present invention has taken the following technical means.

That is, according to the first aspect of the present invention, a vertically elongated guide slot 6 is provided on the front surface of the mounting frame body 2 mounted on the lower portion of the opening / closing member 1, and the lower end is provided inside the mounting frame body 2. A locking rod 5 whose portion projects from the lower surface of the mounting frame 2 is vertically inserted, and the lower end of the locking rod 5 is fitted into a locking hole 4 provided on the fixed side 3. In the drop lock in which the operation knob 7 projecting in the middle of the locking rod 5 is projected from the elongated guide hole 6 to the outside of the mounting frame body 2 in order to perform the lifting operation as described above, On the inner surface of the front part of the above, an adjusting member 16 having a vertically long mounting elongated hole 23 in the lower part is attached so as to close the lower part of the guide elongated hole 6 at the upper part thereof, and at the front part of the mounting frame body 2. And for fixing the adjusting member 16 to the front portion of the mounting frame 2 below the elongated guide hole 6, The mounting screw 30 is provided so as to penetrate the mounting frame 2 from the outside to the inside so that the shaft portion thereof is inserted into the mounting long hole 23.

Further, in addition to the above configuration, the invention according to claim 2 is such that a recessed portion that is recessed toward the inside of the frame 2 is formed in the front portion of the mounting frame 2.
19 is formed, the guide elongated hole 6 is formed in the bottom of the recessed portion 19, and the slide hole is formed in the lower portion of the recessed portion 19.
25 is formed, and the upper part of the adjusting member 16 is vertically inserted into the slide hole 25.

(Operation) In the invention according to claim 1, the adjusting member 16 fixed to the front surface of the mounting frame body 2 by the mounting screw 30 inserted into the mounting elongated hole 23 closes the lower portion of the guide elongated hole 6 at its upper portion. Therefore, when the mounting screw 30 is loosened and the adjusting member 16 is moved up and down, the effective length of the elongated guide hole 6 changes and the stroke of the locking rod 5 can be adjusted.

In this case, the mounting screw 30 is inserted through the front surface of the mounting frame 2 and below the elongated guide hole 6, but the insertion portion (mounting hole 26) into the mounting frame 2 is the head of the mounting screw 30. Since it is blocked by, there is almost no risk of rainwater entering the mounting frame body 2 through the insertion portion of the mounting screw 30.

Further, in the device according to the second aspect, since the upper portion of the adjusting member 16 is vertically movable through the slide hole 25 formed in the lower portion of the recessed portion 19, the adjusting member 16 exposed to the outside of the mounting frame body 2 is provided. The elongated guide hole 6 can be closed at the upper part of the.

(Example) An example will be described with reference to the drawings.

1 to 3, the opening / closing member 1 such as a door or a door corresponds to the position of the locking hole 4 provided on the fixed side 3 such as the floor surface or the receiving frame.
The mounting frame body 2 is embedded and fixed in a mounting recess 17 provided at a predetermined position such as the open end face of the mounting frame 2 via a fastener 18 such as a screw or a screw. At the center of the front portion of the frame body 2 facing the outside, a recessed portion 19 is formed that is recessed toward the inside of the frame body 2,
The guide elongated hole 6 is formed at the bottom of the recess 19.
A strip plate-shaped locking rod 5 is slidably attached along the back surface of the recessed portion 19, and the locking rod 5 is projected on the surface side of the locking rod 5 and can be moved in the front-back direction, but in the vertical direction. The operation knob 7 attached so that the
Since it is slidably inserted in the up-down (up-down) direction and the front-back direction, the locking rod 5 is suspended along the operation knob 7 so that it can be moved up and down and moved back and forth. is there. Further, the lower end of the locking rod 5 is a locking portion 5a having a shape that can be suitably fitted in a locking hole 4 provided on the fixed side 3 of the floor surface.
It is said that The locking rod 5 is also provided on the rear surface of the mounting frame body 2.
Corresponding to the above, a locking rod 9 whose upper end is pivotally supported on the frame 2 by a fastening tool 20 is attached in a substantially parallel manner to the locking rod 5, and the upper portion of the locking rod 9 is curved in an arc shape. A spring portion 8 provided with elasticity is provided, and the lock rod 9 is constantly urged toward the locking rod 5 by the spring of the spring portion 8 and is pushed by the operation knob 7 of the locking rod 5. Oppose as much as possible. As illustrated in FIG. 4 to FIG. 8, in the engaging rod 5 and the locking rod 9 which face each other, the inner surfaces 10 and 11 corresponding to each other in the ascending and descending direction are engaged with and disengageable from each other. A strip-shaped lock part 1 in which a large number of locking structure parts are overlapped in the vertical direction due to the arrangement of a large number of continuous claw teeth 12 and 13
There are 4,15. In addition to the above structure, the shape of the mounting frame 2 is not limited to the above, but in the embodiment, as shown in FIGS.
It has a gutter-shaped section or the like provided with a and 2a, the upper end and the lower end are closed, and the locking rod 5 and the locking rod 9 are installed between both side walls 2a and 2a without any deviation. The locking rod 5 and the locking rod 9 are both substantially plate-shaped, and the operation knob 7 of the locking rod 5 has its shaft portion 7a moved up and down along the guide elongated hole 6 of the mounting frame body 2 and back and forth. Is slidably inserted in any direction,
One end of the knob 7 cannot pass through the long guide hole 6, and the shaft portion 7a
Is movable in the axial direction into a hole 5b provided in the locking rod 5, but is fitted so as not to move in the vertical (up and down) direction, and a stop seat plate 7b is fixed to the other end of the shaft portion 7a. It is fixed by the garment 7c to prevent it from coming out. The stop plate 7b is also made impermeable to the elongated guide hole 6.

Pawl teeth 12, 13 releasably engaged with multiple lock portions 14, 15 provided on the inner surfaces 10, 11 of the locking rod 5 and the locking rod 9 facing each other.
Of course, this is only an example, and its shape and structure are not limited to this, and an engagement structure that can be engaged by joining the two rods 5 and 9 and can be separated by opening and closing,
In the embodiment, a check claw type is used as an example.
That is, as shown in FIG. 6 to FIG. 8, the check teeth 12 and 13 of the long triangular triangular check claw shape are arranged such that one of the claw teeth 12 faces downward and the other claw tooth 13 faces upward. , With the teeth facing in the opposite direction so that they can be engaged and disengaged. With such a check claw type, the lock is fixed in the upward (unlocking) direction, but the downward ( In the (locking) direction, the multiple lock portion 14 (locking rod 5 side) can be forcibly moved with respect to the multiple lock portion 15 without pushing and retracting the lock rod 9 with the operation knob 7. Although possible and convenient, these can be used, for example, trapezoidal claw teeth, except for the check claw function, and any claw tooth engaging structure can be used.
In the illustrated embodiment structure, a plurality of multiple lock portions 14 and 15 are provided in two rows in the width direction of the locking rod 5 and the locking rod 9, but the number of installations can be freely determined. . The spring portion 8 may be a leaf spring or a coil spring.

According to the illustrated embodiment, FIGS. 1 and 2 show a locked state and FIG. 3 shows an unlocked state. From the locked state of FIG. 2, the operation knob 7 is grasped and pushed. If the locking rod 9 is retracted against the spring portion 8 by pushing the locking rod 9, the multiple lock portion 15 is disengaged from the multiple lock portion 14 of the locking rod 5 and the play is lost. When the operation knob 7 is pushed in and is raised along the long guide hole 6, the unlocked state is obtained as shown in FIG. When released, the locking rod 9 is the spring portion 8
It is repulsed via the lever and comes back and presses against the locking rod 5,
15 again engages with the multiple lock portion 14 to obtain the locking action in the unlocked state, and prevents the locking rod 5 from freely falling. From unlocking to unlocking, the operating knob 7 is pushed down to descend, or in the case of the check claw type claw teeth 12 and 13, the operating knob 7 is not pushed and the locking rod 5 side is forced. It can also be lowered.

Further, in the embodiment, as illustrated in FIGS. 1 to 3 and 9, adjustment on the inner surface of the lower portion of the mounting frame body 2 for changing the lifting stroke of the operating knob 7 of the locking rod 5 is large or small. A member 16 is provided.

The member 16 has a mild support portion 22 at the upper part through a step portion 21, a fixed portion 24 having a mounting long hole 23 at the lower portion, and a slide support portion 22 provided at a recess 19 of the mounting frame body 2. The slide hole 25 is slidably inserted along the guide elongated hole 6, and the fixed portion 24 is slidably overlapped with the inner surface of the lower end of the mounting frame body 2.
From the mounting hole 26 of the mounting frame 2 to the mounting long hole 23, the fixing portion 24
It is composed of a mounting screw 30 which is screwed and fixed to a screw hole 29 of a rotation stopper seat 28 which is fixedly fitted in the back surface of the mounting elongated hole 23 through the blocking walls 27, 27. According to this embodiment, before the fixing portion 24 of the member 16 is fixed, its slide bearing portion is fixed.
22 can be arbitrarily moved up and down from the slide hole 25, and the guide long hole 6
The height of the slide support portion 22 at is adjusted, and the fixing portion 24 moves along with the mounting long hole 23. Then, the mounting screw 30 is screwed into and fixed to the screw hole 28 of the detent seat 28 so that the member 16 can be easily adjusted to the optimum height.

That is, the ascending / descending stroke of the operation knob 7, particularly the descending stroke for locking, is set to a large or small size depending on the height of the front surface of the guide elongated hole 6 of the slide bearing portion 22. The amount of insertion of the engaging portion 5a into the engaging hole 4 can be appropriately maintained depending on the height of the stroke, and the operation of adjusting the stroke adjusting member 16 at the site is extremely easy, and it is possible to easily adjust the stroke adjusting member 16 at the time of installation. Great convenience. The upper end of the slide bearing 22 is a bearing 31 corresponding to the shape of the shaft 7a of the operation knob 7. Reference numeral 32 is a vertical operation hole in the slide support portion 22.

(Effect of the Invention) According to the above-mentioned invention, only the vertical position of the adjusting member 16 is changed by operating the mounting screw 30 penetrating the front part of the mounting frame 2 from the outside to the inside. The effective length of the guide long hole 6 is changed so that the stroke of the locking rod 5 can be adjusted, and the insertion portion (mounting hole 26) into the mounting frame body 2 is closed by the head of the mounting screw 30. Since it is possible to prevent rainwater from entering the mounting frame 2 through the insertion portion of 30, the rainwater can be effectively prevented from entering the mounting frame 2 while adjusting the stroke of the locking rod 5 after mounting the lock. It can be performed more easily than before.

Further, according to the invention as set forth in claim 2, the guide elongated hole 6 can be closed by the upper portion of the adjusting member 16 exposed to the outside of the mounting frame body 2 through the slide hole 25 formed in the lower portion of the recessed portion 19. When the mounting screw 30 is loosened, the upper portion of the adjusting member 16 can be held by hand or the like, and the stroke adjustment work of the locking rod 5 after mounting the lock can be further simplified.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the droplock device of the present invention in an installed state, and FIG.
The figure is a vertical side view of the same locked state, Fig. 3 is a vertical side view of the same unlocked state, Fig. 4 is a cross-sectional plan view of the main part before the operation knob is pushed, and Fig. 5 is the operation knob push. Fig. 6 (a) and (b) are side and cross sectional views of the locking rod, Fig.
Figures (a) and (b) are partially exploded side and lateral cross-sectional views of the locking rod, FIG. 8 is an enlarged side view of the engaging portion of the pawl tooth embodiment, and FIG. 9 is an exploded perspective view of the main part of the stroke adjusting member. is there. 1 ... Opening / closing member, 2 ... Mounting frame, 3 ... Fixed side, 4 ...
… Locking hole, 5… Locking rod, 6… Guide long hole, 7… Operating knob, 16… Adjusting member, 19… Recessed part, 23… Mounting long hole, 25… Slide hole, 30 ... Mounting screw.

Claims (2)

[Scope of utility model registration request] 1. A vertically elongated guide slot (6) is provided in a front portion of a mounting frame body (2) attached to a lower portion of an opening / closing member (1).
Is provided, and a locking rod (5) having a lower end protruding from the lower surface of the mounting frame (2) is inserted into the mounting frame (2) so as to be movable up and down, and the locking rod is also provided. In order to move up and down so that the lower end of (5) fits into the locking hole (4) provided on the fixed side (3), an operating knob (projected in the middle of the locking rod (5) In the drop lock in which 7) is projected from the guide slot (6) to the outside of the mounting frame (2), the mounting slot (23) that is long in the up-down direction is formed on the inner surface of the front surface of the mounting frame (2). ) Is attached to the upper part of the adjusting member (16) so as to close the lower part of the elongated guide hole (6), and the adjusting member (16) is attached to the front part of the attachment frame (2) and the elongated guide hole (6). ) Under the mounting bracket (30) for screwing the adjusting member (16) to the front surface of the mounting frame (2).
However, a drop tablet characterized in that the shaft portion is provided so as to be inserted into the attachment elongated hole (23) from the outside of the attachment frame body (2) to the inside thereof. 2. The frame (2) at the front of the mounting frame (2).
A concave recess (19) is formed on the inner side of the recess, a guide slot (6) is formed at the bottom of the recess (19), and a slide hole (25) is formed at the bottom of the recess (19). ) Is formed, and the upper part of the adjustment member (16) is inserted into the slide hole (25) so as to be able to move up and down.