JP2004124681A - Cylinder insertion hole blocking device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylinder insertion hole blocking device for a door which prevents unauthentic unlocking by inserting a wire into a cylinder insertion hole opened to the outside of the door. <P>SOLUTION: A protector ring 12 is fitted to the cylinder insertion hole from the outside of the door, and the protector ring 12 is prevented from slipping out of the insertion hole. The outer periphery of a cylinder 2 is sheathed with a liner cylinder 13 which is further sheathed with at least one adjusting liner 15 and a ring liner 17. The adjusting liner 15 is formed like a thin annular washer, and has an outer diameter almost the same as the opening rim of a decorating ring. The ring liner 17 has an annular bead portion 16 formed on the periphery thereof to house the adjusting liner 15 in the same. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for closing a cylinder cylinder insertion hole of a door (hereinafter, simply referred to as a closure device). In particular, the cylinder cylinder insertion hole on the outer surface of the door can be easily closed with a simple structure, and the safety of the lock can be improved. A closure device that can be improved.
[0002]
[Prior art]
As shown in FIG. 1, for example, the cylinder lock is attached to the door by inserting a cup-shaped cylinder tube 2 containing the cylinder lock 1 through the side plate of the lock box 3 and the door 4 and projecting out of the door surface. Then, the projecting portion is covered with a decorative ring 5 urged in the direction of the door surface in a trapezoidal shape, for example.
[0003]
Incidentally, in the cylinder cylinder 2 itself, the male screw portion 6 formed on the outer peripheral portion of the opening edge is screwed to the female screw portion (not shown) provided on the side surface of the lock box 3, and the door is also set by a set screw (not shown). From the free edge.
[0004]
In some high-end doors, an escation (decorative seat: not shown) may be attached instead of the decorative ring.
[0005]
This escation is usually a vertically long plate material, the surface of which is decorated with a sculpture or the like, and is attached so that it can be called on the outside of the door with a mounting screw from the indoor side.
[0006]
[Problems to be solved by the invention]
However, the dimensions of the lock box 3 and the positions of the escation mounting screws are practically fixed, and as shown in FIG. 2, the positions of the mounting screws are such that the upper end of the lock box is flared.
[0007]
Therefore, as shown in FIG. 2, a screw groove 7 must be formed in the ceiling plate 3a of the lock box 3 and a screw hole 8 must be formed in the upper end of the side plate 3b of the lock box in order to avoid interference of the escation with the mounting screw. However, these screw grooves 7 and screw holes 8 are not necessary for a lock box for a door using a decorative ring.
[0008]
Although the screw hole 8 is U-shaped in FIG. 2, there are semi-circular screw holes depending on the cross-sectional shape of the mounting screw, and rectangular screw holes.
[0009]
However, separately manufacturing the lock box having the same mechanism and having the screw groove 7 and the screw hole 8 for the mounting screw and not forming the lock box may cause an increase in cost, and also increase management. Therefore, screw grooves and screw holes are also formed in the lock box for the door to which the decorative ring is attached.
[0010]
The screw groove 7 and the screw hole 8 are open near a dead cam 9 for operating a locking member such as a dead bolt, as shown in FIG.
[0011]
On the other hand, as shown in FIG. 1, a cylinder cylinder insertion hole 11 through which the cylinder cylinder 2 passes is opened on the outer surface of the door 4, and the cylinder cylinder is inserted from the door outer surface side when the cylinder lock is mounted, and the opening edge is formed. The male screw portion 6 formed on the outer peripheral portion is screwed into a female screw portion (not shown) provided on the side surface portion of the lock box 3, and is also fixed from the free side edge of the door by a set screw (not shown).
[0012]
Therefore, the movable part of the decorative ring is lifted, and the tip of the wire having a special shape is inserted into the lock box 3 from the screw groove 7 through the cylinder cylinder insertion hole 11 and the outer surface of the door and the lock box 3. Then, since the deadbolt is retracted by pulling the lock, unauthorized unlocking is not impossible, and thus the security of the lock is lost.
[0013]
This method of unauthorized unlocking has a security problem if it is disclosed, and is described in Japanese Utility Model Registration No. 3080899, and will not be described here.
[0014]
An object of the present invention is to provide a closing device having a simple structure for closing the cylinder cylinder insertion hole 11 opened on the outer surface of the door.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 provides a cup-shaped cylinder cylinder that holds a cylinder lock inside and has a male screw portion formed on an outer peripheral portion of an opening edge, and a door having an opening end inside. Insert the male screw part into the female screw part provided on the side part of the lock box by fixing it to the lock box by inserting the male screw part into the cylinder cylinder insertion hole opened on the outer surface, and the part protruding from the cylinder outer surface of the door. A thin short cylinder with a flange, covered with a trapezoidal decorative ring urged in the direction close to the door surface, with the cylinder cylinder removed from the lock box, and inserted through the open end of the cylinder cylinder A protector ring having an inner diameter capable of being fitted is fitted into the cylinder cylinder insertion hole from the outer surface of the door, and the protector ring is prevented from coming off. On the other hand, a liner cylinder is fitted around the outer periphery of the cylinder cylinder. -At least one thin line annular washer-like adjustment liner whose outer diameter is almost the same as the opening edge of the decorative ring is formed on the outer periphery of the cylinder, and a ring embankment is formed on the outer periphery. When the opening end of the cylinder cylinder is mounted on the lock box through the protector ring, the ring liner and the adjustment liner that come into contact with the outer surface of the door make the door thickness of the decorative ring It is characterized in that the idle travel in the direction is made substantially zero.
[0016]
The invention according to claim 2 is a cylinder cylinder in which a cylinder lock is carried inside, and a cup-shaped cylinder cylinder in which a male screw portion is formed on an outer peripheral portion of an opening edge is opened on an outer surface of a door with an opening end inside. Insert the male screw into the female screw provided on the side surface of the lock box and fix it to the lock box by inserting the male screw into the lock box. In a state covered with a trapezoidal decorative ring urged in the above manner, a protector which is a thin-walled short cylindrical body with a flange in a state where the cylinder cylinder is detached from the lock box, and has an inner diameter capable of inserting an open end of the cylinder cylinder. The ring is fitted into the cylinder cylinder insertion hole from the outer surface of the door, and the protector ring is prevented from falling out.On the other hand, the outer circumference of the cylinder cylinder is a thin annular washer, the outer diameter of which is the opening of the decorative ring. At least one of the adjustment liners having substantially the same diameter as the end edge and a ring liner having an annular ridge formed on the outer periphery thereof and capable of accommodating the adjustment liner in the annular ridge are fitted. When the end is attached to the lock box through the protector ring, the floating stroke of the decorative ring in the thickness direction of the door is substantially zero by the ring liner and the adjustment liner that abut on the outer surface of the door.
[0017]
【Example】
An embodiment of the present invention will be described below with reference to FIGS.
3 and 4, reference numeral 12 denotes a protector ring. The protector ring 12 is a thin-walled cylindrical body having a flange formed at one end, and has an inner diameter through which an open end of a cylinder cylinder to which a liner cylinder described later is fitted can be inserted. have.
[0018]
The protector ring 12 is fitted into the cylinder cylinder insertion hole 11 (see FIG. 1) from the outer surface of the door with the open end on which the flange is not formed being inward.
[0019]
The length of the protector ring 12 in the direction of the central axis (the length in the left-right direction in FIG. 3) is set so that the inner end opening thereof keeps a slight gap between the protector ring 12 and the outer surface of the lock box 3.
[0020]
In addition, for both the protector ring 12 and an adjustment liner and a ring liner to be described later, in the case of a new construction, the operation is performed before the cylinder cylinder 2 is mounted, and in the case of the existing cylinder cylinder, the cylinder cylinder 2 is removed from the lock box.
[0021]
To remove the cylinder tube 2 from the lock box 3, remove the front plate (not shown) of the lock box with the door opened, and the head of the screw (not shown) fixing the angular position of the cylinder tube 2 Since it is exposed, it is loosened by screwing it with, for example, a screwdriver or the like, turning the decorative ring 5 and a cylinder cylinder integrated therewith in a predetermined direction to remove the screw from the lock box, and then pulling it outward, the decorative ring 5 The cylinder tube 2 can be removed integrally.
[0022]
The protector ring 12 is provided with a stopper so that once it is mounted on the door, it cannot be pulled out.
[0023]
In the illustrated embodiment, for example, as shown in FIG. 4, a plurality of portions of the cylindrical portion of the protector ring 12 are cut and raised outward to form elastically deformable retaining pieces 12b, and as shown in FIG. When the ring 12 is mounted on the outer surface of the door, the outer surface of the door 4 is sandwiched between the flange 12a (see FIG. 4) and the retaining piece 12b.
[0024]
By simply mounting the protector ring 12 on the outer surface of the door as described above, the present applicant has the same function as the door cylinder opening hole closing device proposed by the present applicant in Japanese Patent Application No. 2002-173392. Unauthorized unlocking by inserting a wire having a special shape into the door from the insertion hole 11 can be effectively prevented.
[0025]
On the other hand, as shown in FIG. 3, a liner cylinder 13 made of, for example, a synthetic resin is fitted to the outer peripheral portion of the cylinder cylinder 2 removed from the lock box 3.
[0026]
As shown in FIG. 3, at least one adjustment liner 15 having a thin annular shape and an outer diameter substantially equal to the opening edge of the decorative ring 5 is provided on the outer peripheral portion of the liner cylinder 13. As shown in FIG. 7, a ring liner 17 having an annular ridge 16 formed on the outer peripheral portion is fitted.
[0027]
The ring liner 17 in the illustrated embodiment is formed by forming an annular embankment portion 16 by pressing a ring-shaped thin plate, and then joining a thick reinforcing plate by spot welding, for example.
[0028]
As shown in FIG. 3, the ring liner 17 configured as described above is fitted to the liner cylinder 13 such that the adjustment liner 15 is sandwiched between the ring liner 17 and the decorative ring 5 with the ring embankment portion 16 facing outward.
[0029]
The number of the adjustment liners 15 is adjusted according to the door thickness, that is, the amount of protrusion of the cylinder tube 2 from the outer surface of the door, and when the open end of the cylinder tube 2 is mounted on the lock box 3 through the protector ring, the outer surface of the door is adjusted. The urging spring of the decorative link 5 is fully compressed and contracted by the ring liner and the adjusting liner that comes into contact with the ring, so that the floating stroke of the decorative ring in the door thickness direction is set to substantially zero.
[0030]
In the closing device according to the embodiment of the present invention configured as described above, since the makeup ring 5 cannot be lifted as already shown in FIG. Unauthorized unlocking by inserting a wire into the insertion hole is not possible.
[0031]
Even if the decorative ring 5 is lifted by any method, the protector ring 12 closes the gap between the cylinder cylinder insertion hole 11 and the side of the lock box, so that the wire reaches the upper part of the lock box from the cylinder cylinder insertion hole 11. I can't.
[0032]
As is apparent from FIG. 3, when the thickness of the liner cylinder 13 is gradually reduced to zero, in other words, when the liner cylinder 13 is omitted, the inner diameter of the adjustment liner 15 is set outside the cylinder cylinder 2. If the diameter is made as small as the diameter, the invention described in claim 2 of the present application is established with a degree that the slippage is slightly deteriorated.
[0033]
【The invention's effect】
As is apparent from the above description, in the present invention, the protector ring is fitted into the cylinder cylinder insertion hole from the outer surface of the door, and the protector ring is prevented from falling off, while the liner cylinder is provided on the outer peripheral portion of the cylinder cylinder. At least one adjustment liner having a thin-walled annular washer-like outer diameter substantially the same as the opening edge of the decorative ring is formed on the outer peripheral portion of the liner cylinder, and a ring embankment is formed on the outer peripheral portion. A ring liner adapted to accommodate the adjustment liner is fitted into the ring embankment, and when the opening end of the cylinder cylinder is mounted on the lock box through the protector ring, the ring liner and the adjustment liner abut on the outer surface of the door. Since the floating stroke of the decorative ring in the thickness direction is almost zero, the decorative ring cannot be lifted first, so that the cylinder cylinder insertion hole can be exposed. Does not come, the wire from here it is possible to prevent an incorrect answer tablets by passing it through the door.
[0034]
In addition, for the same reason, the gap between the cylinder cylinder insertion hole and the lock box side is closed by the protector ring, so the wire cannot reach the upper part of the lock box from the cylinder cylinder insertion hole, and the wire is inserted into the door from here. Unauthorized unlocking due to passing through can be prevented twice.
[0035]
Furthermore, since the ring embankment of the ring liner covers the adjustment liner, various effects such as an improved appearance can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagrammatic sectional view showing an example of mounting a cylinder cylinder.
FIG. 2 is a partial sectional side view showing an example of the structure of the lock box.
FIG. 3 is a diagrammatic cross-sectional view of a cylinder cylinder mounting portion to which a closing device according to the present invention is mounted.
FIG. 4 is an enlarged partial sectional view of a protector ring.
FIG. 5 is a sectional view of a ring liner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylinder lock 2 Cylinder cylinder 3 Lock box 4 Door 5 Decorative ring 6 Male screw part 7 Screw groove 8 Screw hole 9 Dead cam 11 Cylinder cylinder insertion hole 12 Protector ring 13 Liner cylinder 15 Adjustment liner 16 Ring ridge 17 Ring liner

Claims (2)

The cylinder lock is carried inside, and a cup-shaped cylinder tube having a male screw portion formed on the outer periphery of the opening edge is inserted into the cylinder tube insertion hole opened on the outer surface of the door with the opening end inside and the male screw portion is locked. It is fixed to the lock box by screwing it into a female thread provided on the side surface of the box, and the portion of the cylinder cylinder protruding from the outer surface of the door is covered with a trapezoidal decorative ring urged in the direction approaching the door surface. With the cylinder cylinder removed from the lock box, a protector ring that is a thin short cylinder with a flange and has an inside diameter that allows the opening end of the cylinder cylinder to be inserted into the cylinder cylinder insertion hole from the door outer surface side. At the same time, the protector ring is prevented from falling out, while a liner cylinder is fitted around the outer periphery of the cylinder cylinder. At least one of the adjustment liners having substantially the same diameter as the opening edge of the cosmetic ring and a ring liner formed on the outer peripheral portion and fitted with the adjustment liner in the ring ridge portion are fitted. A door cylinder characterized in that, when the open end of the cylinder cylinder is mounted on a lock box through a protector ring, a floating travel of the decorative ring in the thickness direction of the door is substantially zero by a ring liner and an adjustment liner that abut on the outer surface of the door. Cylinder insertion hole closing device. The cylinder lock is carried inside, and a cup-shaped cylinder tube having a male screw portion formed on the outer periphery of the opening edge is inserted into the cylinder tube insertion hole opened on the outer surface of the door with the opening end inside and the male screw portion is locked. It is fixed to the lock box by screwing it into a female thread provided on the side surface of the box, and the portion of the cylinder cylinder protruding from the outer surface of the door is covered with a trapezoidal decorative ring urged in the direction approaching the door surface. With the cylinder cylinder removed from the lock box, a protector ring that is a thin short cylinder with a flange and has an inside diameter that allows the opening end of the cylinder cylinder to be inserted into the cylinder cylinder insertion hole from the door outer surface side. The protector ring is fitted together with the protector ring, and a thin annular washer is provided on the outer periphery of the cylinder cylinder, and the outer diameter of the adjuster liner is almost the same as the opening edge of the decorative ring. At least one sheet and a ring liner formed in an outer peripheral portion and a ring liner capable of accommodating an adjustment liner were fitted in the ring portion, and the open end of the cylinder was attached to a lock box through a protector ring. A door cylinder cylinder hole closing device characterized in that the floating stroke of the decorative ring in the thickness direction of the door is made substantially zero by a ring liner and an adjustment liner that abut on the outer surface of the door.

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