JP3333157B2 - Strike for door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strike for a door lock device. The door lock device includes both an empty lock (with a latch bolt) and a final lock (with a dead bolt).

[0002]

2. Description of the Related Art In a door lock device, if a door bolt sometimes protrudes from a door end face when the door is opened (especially when the door bolt is used as an empty lock), the door bolt is inserted into the door frame. In order to eliminate these inconveniences, clothes or belongings of passing people may interfere with each other, or when the door is closed, the door bolt may strike the strike and generate an unpleasant impact sound.
There has been proposed a configuration in which the door bolt is always immersed in the door by a spring force, and the door bolt is protruded toward the strike side by magnetic force only when the door is completely closed (see Japanese Patent No. 2609828).

The door lock device includes a casing provided at an end of the door, a door bolt which is inserted into the casing so as to be able to protrude and retract from the end face of the door, and a door bolt which is axially movable. An operating member provided rotatably with respect to the casing about an orthogonal rotation axis, a drive mechanism for interlocking the rotation of the operating member and the axial movement of the door bolt, and biasing the door bolt in the immersion direction; A coil spring and a lock mechanism for projecting the tip of the door bolt toward the strike on the door frame side with a magnetic force greater than that of the coil spring when the door is closed.

Here, the lock mechanism is a magnetic material such as a permanent magnet provided in a tip portion of a door bolt and a strike hole of a strike (inside a main body case to be attached to a door frame). (Including the case where one of them is an iron piece or the like).

[0005]

As a strike provided in this type of door lock device, there has not yet been proposed a strike in which a magnetic material can be adjusted in the main body case along a direction in which a door bolt enters. . Therefore, when the door is attached to the door frame, when the distance between the two magnetic materials as the lock mechanism (the action strength of the magnetic force) is appropriately adjusted, the size of the dust (the door bolt is provided on the door) is required. Adjustment of the gap between the end face and the vertical face of the door frame facing the end face) was a large-scale adjustment, and the work was sometimes difficult.

The present invention has been made in view of the above circumstances, and in a strike used for a door lock device, it is possible to adjust a position of a magnetic material in and out of a magnetic material (a direction in which a door bolt enters). For a door lock device that allows the distance between magnetic materials as a lock mechanism (the strength of the magnetic force) to be properly adjusted independently of the adjustment of the dust size and the like when the door is attached to the frame. The aim is to provide a strike.

[0007]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, in the strike for the door lock device according to the present invention, a magnetic material for projecting a door bolt provided to be able to protrude and retract on the end face side of the door into a main body case attached to the door frame by a magnetic attraction action and holding the door bolt in an engaged state. The position of the magnetic material can be adjusted along the direction of entry of the door bolt by the position adjusting means.

With this configuration, when the door is attached to the door frame, the position of the magnetic material along the direction of entry of the door bolt in the main body case has no relation to the adjustment of the size of the dust and the like. The adjustment, that is, the distance between the magnetic materials (the strength of the magnetic force) as the lock mechanism can be appropriately adjusted. As a result, the work of attaching the door to the door frame as a whole can be facilitated. As a specific structure of the position adjusting means, a resilient member sandwiched between the back surface of the magnetic material and the inner bottom of the main body case, and the magnetic material can be pressed toward the inner bottom of the main body case, and the front surface of the main body case can be pressed. It is only necessary to have a pressing screw whose degree of screwing can be adjusted from the side.

In this structure, the position of the magnetic material can be adjusted only by rotating the pressing screw from the front side of the main body case, and the operability is excellent. Further, as another specific structure of the position adjusting means, a spacer to be sandwiched between the back surface of the magnetic material and the inner bottom of the main body case as needed, and the magnetic material can be pressed toward the inner bottom of the main body case. What is necessary is just to have the mounting screw set. This structure is advantageous in that the position of the magnetic material can be accurately adjusted, and the position of the magnetic material can be fixed after the adjustment (there is no displacement during use).

[0010] Still another specific structure of the position adjusting means is an adjusting screw which is screwed to one of the back surface of the magnetic material and the inner bottom of the main body case and one end of which is in contact with the other, What is necessary is just to have the fixing screw made possible to press a magnetic material toward the inner bottom of a main body case.
This structure also has the advantage that the position of the magnetic material can be adjusted accurately and the position can be fixed after the adjustment.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of a strike 1 according to the present invention. Among them, FIG. 1 shows an entire door lock device 2 provided with the strike 1, that is, a door 3. Is shown as a closed state. As shown in FIGS. 2 and 3, this strike 1
In the door frame 4, a main body case 7 buried in a vertical surface facing the end face of the door 3, and a magnetic material 8 provided in the case main body 7.
And a position adjusting means 9 for adjusting the position of the magnetic material 8.

The body case 7 has a locking hole 13 on the front side (right side in FIG. 2) for allowing a door bolt 12 provided on the end face side of the door 3 so as to be able to move in and out.
The magnetic material 8 is positioned so as to face the door bolt 12 deep inside the locking hole 13. The portion of the main body case 7 that holds the magnetic material 8 is formed as a rear case portion 14 that can move the magnetic material 8 in the front-rear direction (the direction in which the door bolt 12 enters) while containing the magnetic material 8. . An inner bottom 15 is provided at the back end of the rear case portion 14, and a female screw portion 16 is provided at the inner bottom 15.

In the main body case 7, a mounting piece 18 extending upward and downward around the opening of the locking hole 13 is provided.
These mounting pieces 18 are provided with screw holes 19 for inserting wood screws (not shown) or the like at the time of fixing to the door frame 4. The screw hole 19 is formed as a long hole extending in the left-right direction. The magnetic material 8 includes
A magnet or iron piece formed in a plate shape is used. A holding plate 22 is stacked on the front surface of the magnetic material 8, and a cushioning material 23 is attached to the front surface of the holding plate 22.

The holding plate 22 is made of stainless steel or the like, and the cushioning material 23 is made of soft rubber, resin, sponge or the like. These magnetic material 8, holding plate 22,
And the cushioning material 23 penetrates the central part thereof, and
A screw hole 24 is provided so as to coincide with the female screw portion 16 of the inner bottom 15 of the inner case portion 14. The diameter of the screw through hole 24 increases toward the buffer material 23 side. The position adjusting means 9 makes it possible to press the resilient member 26 sandwiched between the back surface of the magnetic material 8 and the inner bottom 15 of the main body case 7 toward the inner bottom 15 of the main body case 7. Press screw 27.

The resilient member 26 is preferably a coil spring wound around an axis passing through the female screw portion 16 and the screw hole 24. However, the present invention is not limited to this, and a plurality of coil springs may be used side by side, a leaf spring may be used, or another spring material may be used.
The pressing screw 27 is provided in the screw through hole 2 provided in the magnetic material 8 or the like.
4, and then screwed into a female screw portion 16 provided on the inner bottom 15 of the main body case 7. Accordingly, the screw head 27a of the pressing screw 27 is directed toward the cushioning material 23 (to the right in FIG. 2).

Therefore, as shown in FIG. 4, a tool 30 such as a screwdriver is inserted from the front of the main body case 7, and the pressing screw 27 is rotated by this to adjust the degree of screwing. 8 can be moved in and out of the main body case 7, that is, in the direction in which the door bolt 12 enters. That is, the position of the magnetic material 8 can be adjusted. With such a structure, the following secondary effects can be obtained. That is, when the door bolt 12 protrudes toward the magnetic material 8, even if the door bolt 12 hits the magnetic material 8 strongly, the impact action at this time is due to the cushioning property of the cushioning material 23 itself. Is not only absorbed by the elastic member 2
6 will be absorbed by the urging force. Therefore, there is an advantage that generation of a collision sound and vibration are prevented, and also an advantage that breakage of the magnetic material 8 and the like is prevented.

A front cover 31 is superposed on the main body case 7 so as to entirely cover the front part thereof. The front cover 31 is made of stainless steel or the like, and is formed wider than the width of the main body case 7 (external method in the left-right direction). The front cover 31 is provided with an opening 32 corresponding to a portion corresponding to the locking hole 13 of the main body case 7, and a screw through hole 33 is formed corresponding to a portion corresponding to the screw through hole 19. Have been.
The screw hole 19 of the main body case 7 is a long hole long in the left-right direction as described above, but the screw hole 33 provided in the front cover 31 is a round hole.

The opening 32 is further provided with protection pieces 34 which are folded into the locking holes 13 from upper and lower opening edges.
Is provided. These upper and lower protection pieces 34 are formed to be narrower than the opening width of the locking hole 13 (the inner method in the left-right direction). For this reason, when attaching the strike 1 to the door frame 4, the position of the main body case 7 can be adjusted in the left-right direction based on the position where the front cover 31 is to be attached. Next, a configuration other than the strike 1 will be outlined as the door lock device 2.

As shown in FIG. 5 to FIG. 7, the door 3 is opened (that is, the door 3 is detached from the strike 1). A door bolt 12 movably housed in a casing 37 in a direction in which a tip portion protrudes and retracts from an end surface of the casing 37, and an operation handle 3 rotatably provided via a pivot shaft 38 projecting to both left and right sides of the casing 37.
9, a drive mechanism 40 for interlocking the opening operation rotation of the operation handle 39 and the movement of the door bolt 12 in the immersion direction,
An immersion urging tool 41 for urging the door bolt 12 in the immersion direction is provided.

At the distal end of the door bolt 12, a magnetic material 42 that constitutes a lock mechanism in combination with the magnetic material 8 provided on the strike 1 is provided. In this lock mechanism, when the door 3 is closed, the magnetic material 8,
The action of magnetic attraction of the two by the immersion urging tool 41
Is set to beat the bias of Therefore, door 3
When the door bolt 12 is closed, the door bolt 12 automatically protrudes against the urging force of the immersion urging tool 41, and is fitted into the locking hole 13 of the strike 1 so that the door 3 is locked to the door frame 4 side. Will be done.

The casing 37 is provided with flanges 43 extending in the up-down direction, and the fixing holes 44 formed in these flanges 43 are used to screw the end surface of the door 3 with screws. The driving mechanism 40 includes a turning member 46 that turns integrally with the turning shaft 38 of the operation handle 39,
A return winding spring 47 provided around the periphery, a slider 48 engaged with the outer peripheral portion of the rotating member 46 and held movably back and forth in the casing 37, and provided at the rear of the door bolt 12. A rear extension rod 49, and a reversing claw 50 for interlocking the rear extension rod 49 and the slider 48 in opposite directions.
And

That is, as shown in FIG.
When the operation handle 39 is turned in the direction of the arrow X when the handle 2 is in the forward protruding state, the turning member 46 also turns in the same direction as shown in FIG. It moves in the direction of the arrow Y, and the rear extension rod 49 moves in the direction opposite to the direction of the arrow Y via the reversing claw 50. As a result, the door bolt 12 is retracted. Therefore, the door 3 can be opened. Thereafter, when the operation handle 39 is released, the rotating member 46 and the operation handle 39 are returned to the original positions shown in FIG. 1 by the return winding spring 47, and the slider 48 is also returned to the original position. Moving. But,
For the reversing claw 50 and the door bolt 12, the immersion urging tool 4
1 keeps the immersion state. Therefore,
In such an open state of the door 3, the door bolt 12
There is no interference between clothes and belongings.

In this state, even if the operation handle 39 is rotated in either direction, only the slider 48 reciprocates and the reversing claw 50 remains stopped.
Immersion state is maintained. When the door 3 is closed, the door bolt 12 automatically projects by the action of the lock mechanism (magnetic materials 8, 42) as described above, and the door 3 shown in FIG.
Returns to the locked state. As shown in FIG. 6, a locking device 53 with a detachable key 52 may be provided at the outdoor end of the rotating shaft 38.

FIG. 8 shows a second example of strike 1 according to the present invention.
1 shows an embodiment. In the second embodiment, the most different point from the first embodiment lies in the position adjusting means 9. That is, the position adjusting means 9 according to the second embodiment is configured such that the back surface of the magnetic material 8 and the inner bottom 15
Spacer 56 to be inserted between as necessary
And a mounting screw 57 capable of pressing the magnetic material 8 toward the inner bottom 15 of the main body case 7.

As long as the spacer 56 has a plate shape and is provided with a screw through hole 58 for a mounting screw 57 on its plate surface, the material, plate thickness, number of sheets used, etc. are not limited at all. Absent. For example, metals, resins, ceramics and the like can be adopted as the material. Of course, as for the plate thickness, several types having the same thickness or different thicknesses may be prepared, and a predetermined thickness may be obtained by combining them. The mounting screw 57 has this name from an operational point of view, but is substantially the same as the pressing screw 27 described in the first embodiment. Therefore, after being inserted into the screw through hole 24 provided in the magnetic material 8 or the like, the main body case 7
The screw head 57 a of the mounting screw 57 is screwed into the female screw portion 16 provided on the inner bottom 15 of the cushioning material 2.
3 (to the right in FIG. 8).

FIG. 9 shows a third example of strike 1 according to the present invention.
1 shows an embodiment. In the third embodiment, the most different point from the first embodiment is the position adjusting means 9. That is, the position adjusting means 9 according to the third embodiment is configured such that the back surface of the magnetic material 8 and the inner bottom 15
And one of these (the magnetic material 8 in the illustrated example).
Side), and an adjustment screw 60 having one end abutting on the other end, and a fixing screw 61 capable of pressing the magnetic material 8 toward the inner bottom 15 of the main body case 7. ing.

A set screw is used as the adjusting screw 60. The fixing screw 61 has this name from an operational point of view, but is substantially the same as the pressing screw 27 described in the first embodiment. Therefore, after being inserted into the screw hole 24 provided in the magnetic material 8 or the like, it is screwed into the female screw portion 16 provided in the inner bottom 15 of the main body case 7. It is directed to the material 23 side (right side in FIG. 9). Although not shown, when the adjusting screw 60 is screwed to the inner bottom 15 of the main body case 7, a screw having a large diameter screw head is used as the adjusting screw 60, and A through hole smaller in diameter than the screw head may be provided on the magnetic material 8 side so as to match the adjusting screw 60. This through hole is a hole for inserting a tool such as a screwdriver.

By the way, the present invention is not limited to the above embodiments, and the detailed structure, member shape, member material and the like of each part can be appropriately changed according to the embodiment.

[0029]

As is apparent from the above description, in the strike for the door lock device according to the present invention, it is possible to adjust the position of the magnetic material in and out of the door (the direction in which the door bolt enters), and thus the door can be moved relative to the door frame. At the time of mounting, the distance between magnetic materials (action strength of magnetic force) as a lock mechanism can be appropriately adjusted in a state independent of adjustment of the size of the dust and the like .
3) . Further, according to the present invention, a buffer is provided on the front side of the magnetic material.
Door bolts hit the magnetic material
It is possible to prevent the generation of collision noise and vibration caused by
In addition, it is possible to prevent the magnetic material from being damaged.
Items 1 and 2).

[Brief description of the drawings]

FIG. 1 is a side sectional view (corresponding to a sectional view taken along line AA of FIG. 6) showing a strike according to a first embodiment of the present invention as a whole door lock device (with a door closed). .

FIG. 2 is a side sectional view showing only a strike extracted from FIG. 1;

FIG. 3 is a front view of a strike.

FIG. 4 is a side sectional view showing a situation where the position of the magnetic material is adjusted with respect to the strike.

FIG. 5 is a side sectional view showing the inside of the door lock device (in a state where the door is released from the strike) when the door is opened from the state of FIG. 1;

FIG. 6 is a plan view showing a door lock device (excluding a strike).

FIG. 7 is a view taken along the line BB of FIG. 6;

FIG. 8 is a side sectional view showing a second embodiment of the strike according to the present invention.

FIG. 9 is a side sectional view showing a third embodiment of the strike according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Strike 2 Door lock device 3 Door 4 Door frame 7 Main body case 8 Magnetic material 9 Position adjusting means 12 Door bolt 15 Inner bottom 26 Resilient member 27 Pressing screw 27a Screw head 56 Spacer 57 Mounting screw 57a Screw head 60 Adjusting screw 61 Fixing screw 61a screw head

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 15/02 E05C 19/16 E05C 1/16

Claims (3)

(57) [Claims] 1. A door bolt (12) provided on the end face side of a door (3) so as to be able to protrude and retract in a main body case (7) attached to a door frame (4) by a magnetic attraction action and held in an engaged state. Door with a magnetic material (8) to be provided
In strike for click device, the magnetic material (8) and the buffer material disposed on the front side
(23) Doaboruto position adjusting means enabling positional adjustment along the entering direction of (12) (9) is provided, said position adjusting means (9), the back surface and the magnetic material (8)
Bullets inserted between the inner bottom (15) of the body case (7)
The main body case (7) is made of the starting member (26) and the magnetic material (8).
Body case that can be pressed toward the inner bottom (15) of the
(7) Pressing screw whose degree of screwing can be adjusted from the front side
(27) A strike for a door lock device, comprising: 2. A body case to be attached to a door frame (4).
(7) is provided so as to be able to protrude and retract at the end face side of the door (3)
Door bolt (12) projected by magnetic attraction and engaged
Door provided with a magnetic material (8) to be held in a state
In a strike for a shock device, the magnetic material (8) and a cushioning material disposed on the front side thereof
(23) is located along the direction of entry of the door bolt (12).
Position adjusting means (9) for enabling adjustment is provided, and the position adjusting means (9) is provided between the back surface of the magnetic material (8) and the book.
Between the inner bottom (15) of the body case (7) if necessary
Spacer (56) and magnetic material (8)
It can be pressed toward the inner bottom (15) of the case (7).
You characterized by having a mounting screw (57) which
Strike for de alloc apparatus. 3. A main body case to be attached to a door frame (4).
(7) is provided so as to be able to protrude and retract at the end face side of the door (3)
Door bolt (12) projected by magnetic attraction and engaged
Door provided with a magnetic material (8) to be held in a state
In a strike for a lock device, the magnetic material (8) is moved in a direction in which a door bolt (12) enters.
Position adjusting means (9) for adjusting the position along
The position adjusting means (9) is provided between the back surface of the magnetic material (8) and the book.
Either with the inner bottom (15 ) of the body case (7)
Adjusting screw that is screwed and has one end in contact with the other
(60) and the magnetic material (8) in the inner bottom of the main body case (7).
A fixing screw (6) that can be pressed toward (15)
1) and by strike for de alloc device characterized in that has a.