JP4277167B2 - Lock box shielding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock box shielding device (hereinafter simply referred to as a shielding device), and in particular, can easily close a relief groove opened in the lock box with a simple structure, thereby improving the safety of the lock. The present invention relates to a shielding device.
[0002]
[Prior art]
For example, as shown in FIG. 1, a cylinder-shaped cylinder 1 containing a cylinder lock is made to pass through the door 2 and protrude out of the door surface, and the protruding portion is decorated. The structure is covered with the ring 3.
[0003]
Incidentally, the cylinder cylinder 1 itself in the illustrated embodiment is screwed into the opening edge of the cylinder cylinder 1 at the front end of the mounting bolts 6 and 6 penetrating the thumb turn seat 4 and the lock box 5 from the indoor side. It is fixed so as to be called on the outer side plate.
[0004]
Therefore, as shown in FIG. 2, the lock box 5 in the illustrated embodiment has mounting holes 7 and 7 penetrating the lock box 5 in the horizontal direction.
[0005]
By the way, as shown in FIG. 2, in the lock box 5, a relief groove 11 is opened on the upper surface of the lock box 5 in order to avoid interference with the dead bolt 8 and the dead cam 9 for taking in and out the dead bolt 8.
[0006]
In order to avoid interference with the click spring 12, a similar relief groove 11 is also opened on the lower surface of the lock box 5.
[0007]
[Problems to be solved by the invention]
On the other hand, as shown in FIG. 1, a cylinder cylinder insertion hole 13 for passing the cylinder cylinder 1 is opened on the outer surface of the door 2, and the cylinder cylinder 1 is surely inserted even if there is a manufacturing error. The gap between the insertion hole 13 and the cylinder cylinder 1 is set to be quite large.
[0008]
Therefore, the movable part of the decorative ring is lifted, and the tip of the specially shaped wire is inserted into the lock box 3 from the escape groove 11 through the cylinder tube insertion hole 13 and the outer surface of the door and the lock box 5. Then, since the deadbolt 8 is retracted by pulling this, there is an inconvenience that the unauthorized unlocking is not impossible and the security property before the lock is lost.
[0009]
If the design is changed and the vertical dimension of the lock box 5 is increased, the clearance groove can be eliminated, but this method cannot be applied to the existing lock box, and the dead bolt whose dimensions are determined by the standard Since design changes must also be made, this is not a problem of simply increasing the size of the lock box.
[0010]
The object of the present invention is to provide a shielding device having a simple structure that shields the escape groove 11 opened on the upper and lower surfaces of the lock box, thereby eliminating the above-described disadvantages.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention has a horizontally-long elongated lock box, a dead cam rotatably supported in the lock box, and a cylinder lock that controls the locking and unlocking of the dead cam. The cup-shaped cylinder carrying the cylinder lock is inserted into a cylinder cylinder insertion hole opened on the outer surface of the door with the opening end on the inside, penetrating the door and lock box from the indoor side, and the tip is set to the opening edge. interference in which threadably attaching bolt so as to summon the side plate of the lock box is fixed to the lock box to form a tailpiece opening through which the tailpiece to the bottom surface of the thin cup body, the two places of the outer peripheral portion and the lock box Open the cylinder cylinder so that the opening is directed to the lock box so that the notch is cut off , the lock box is fitted in the notch, and the upper and lower relief grooves of the dead cam of the lock box are covered by the shield. Fixed to the edge It is characterized in.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 3, reference numeral 14 denotes a shield, and this shield 14 is mounted so as to be sandwiched between the cylinder cylinder 1 and the lock box 5 by the mounting bolt 6.
[0013]
As shown in FIGS. 4 and 5, the shield 14 has a tail piece opening 15 through which a tail piece (not shown) attached to the cylinder lock inner cylinder passes through the bottom surface of the thin cup body, and the lock box 5. In order to avoid interference , the outer peripheral portion is a member formed by notching the notch 16 and 16 by subjecting the tailpiece opening 15 to a notch.
[0014]
Then, the lock box 5 is passed through the notches 16 and 16, the outer surface of the bottom surface is joined to the opening edge of the cylinder tube 1, and the bolt holes 17 and 17 opened on the bottom surface are opened to the opening edge of the cylinder tube (not shown). After aligning with the female screw hole, the cylinder cylinder 1 is called to the lock box 5 by the mounting bolts 6 and 6.
[0015]
Then, the shield 14 is fixed so as to be securely sandwiched between the cylinder cylinder 1 and the lock box 5 by the mounting bolts 6 and 6.
[0016]
In FIG. 4, reference numeral 18 denotes a relief hole formed so as not to interfere with the protrusion at the opening edge of the cylinder tube, and in FIG. 5, reference numeral 19 denotes a click spring 12 to prevent interference with the click spring 12 (see FIG. 2). The formed click spring groove is shown, and the reason why the escape hole 18 and the click spring groove 19 are formed vertically in the drawing is to prevent the structure of the shield from having directionality.
[0017]
2, reference numeral 21 denotes a cylinder lock tail piece or clutch hole that engages with the thumb turn shaft, and FIG. 3 reference numeral 22 denotes a thumb turn. These structures and functions are well known in the art. Detailed explanation is omitted.
[0018]
As is clear from FIG. 3, the shielding device according to the embodiment of the present invention configured as described above has the relief grooves 11, 11 formed on the upper and lower surfaces of the lock box 5 as the cylindrical portion of the shielding body 14. Shield with the part left uncut.
[0019]
【The invention's effect】
As is apparent from the above description, the present invention forms a tail piece opening through which the tail piece is passed on the bottom surface of the thin cup body, and the shielding body cut out so that the outer periphery does not interfere with the lock box. The cylinder body is fixed to the opening edge of the cylinder cylinder, and the shield shields the relief grooves formed on the upper and lower surfaces of the lock box, so the cylinder ring is lifted from the cylinder cylinder insertion hole opened to the outer surface of the door. There is an expected effect that illegal unlocking by inserting a wire can be completely prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of attachment of a cylinder lock.
FIG. 2 is a partial cross-sectional side view of a lock box.
FIG. 3 is a sectional view of a cylinder lock equipped with a shielding device according to one embodiment of the present invention.
FIG. 4 is a front view of the shield viewed from the indoor side.
FIG. 5 is a side view of a shield.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylinder cylinder 2 Door 3 Cosmetic ring 4 Thumb turn seat 5 Lock box 6 Mounting bolt 7 Mounting hole 8 Dead bolt 9 Dead cam 11 Relief groove 12 Click spring 13 Cylinder cylinder insertion hole 14 Shield 15 Tail piece opening 16 Notch 17 Bolt hole

Claims (1)

An elongated lock box extending in the horizontal direction, a dead cam that is rotatably supported in the lock box, and a cylinder lock that controls the locking and unlocking of the dead cam, and a cup-shaped cylinder carrying the cylinder lock Is inserted into the cylinder tube insertion hole opened on the outer surface of the door with the opening end inward, and is called to the side plate of the lock box with a mounting bolt that penetrates the door and lock box from the indoor side and screws the tip to the opening edge. In this way, the tail piece opening that allows the tail piece to pass through is formed on the bottom of the thin cup body, and the shield that is notched so that it does not interfere with the lock box at two locations on the outer periphery is locked. A lock box that is fixed to the opening edge of the cylinder cylinder so that the lock box is fitted in the notch, and the upper and lower relief grooves of the dead cam of the lock box are covered with a shield . Shielding device.

Images