JP4214260B2 - Cylinder insertion hole closing device for door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cylinder tube insertion hole closing device (hereinafter simply referred to as a closing device) for a door, and in particular, can easily close a cylinder tube insertion hole on the outer surface of the door with a simple structure, thereby improving the safety of the lock. The present invention relates to an occluding device that can be improved.
[0002]
[Prior art]
For example, as shown in FIG. 1, the cylinder lock 2 that houses the cylinder lock 1 protrudes out of the door surface through the side plate of the lock box 3 and the door 4. The protruding portion is covered with the decorative ring 5.
[0003]
Incidentally, the cylinder cylinder 2 itself is fixed to the lock box 3 via mounting blocks 10 and 10 (see FIG. 2) formed on the outer peripheral surface of the opening edge and mounting rods 6 and 6 penetrating the lock box 3. The
[0004]
Thus, in some types of high-end doors, an escation (decorative seat plate: not shown) may be mounted instead of the decorative ring.
[0005]
This escation is usually a vertically long plate material, and its surface is decorated with sculpture or the like, and is mounted so that it can be called from the indoor side to the outer surface of the door with a mounting screw.
[0006]
[Problems to be solved by the invention]
However, the dimensions of the lock box 3 and the position of the escation mounting screw are substantially fixed, and as shown in FIG. 3, the position of the mounting screw is such that the upper end of the raw hat box is given up.
[0007]
Therefore, as shown in FIG. 3, in order to avoid interference with escation mounting screws, screw grooves 7 must be formed in the ceiling plate 3a of the lock box 3, and screw holes 8 must be formed in the upper ends of the side plates 3b of the lock box. However, these screw grooves 7 and screw holes 8 are not necessary for a lock box for a door using a decorative ring.
[0008]
In FIG. 3, the screw hole 8 is U-shaped, but depending on the cross-sectional shape of the mounting screw, there may be a semicircular screw hole or a rectangular one.
[0009]
However, separately manufacturing a lock box having the same mechanism but having a screw groove 7 and a screw hole 8 for mounting screws separately causes an increase in cost and is also controlled. Therefore, screw grooves and screw holes are also formed in the lock box for the door to which the decorative ring is attached.
[0010]
These screw grooves 7 and screw holes 8 are opened in the vicinity of 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 for passing the cylinder cylinder 2 and the mounting block 10 is opened on the outer surface of the door 4, and the cylinder cylinder mounting block from the door outer surface side when the cylinder lock is mounted. 10 is inserted into the lock box 3, and the mounting rods 6 and 6 are inserted into the mounting block 10 and fixed from the free edge of the door.
[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 tube insertion hole 11 and between the door outer surface and the lock box 3. Then, since the deadbolt is pulled by pulling this, there is a disadvantage that unauthorized unlocking is not impossible and thus the security property of the lock is lost.
[0013]
It should be noted that this unauthorized unlocking method has a problem in crime prevention when it is made public, and is described in the registered utility model gazette according to utility model registration No. 3080899, and therefore, description thereof is omitted here.
[0014]
The object of the present invention is to provide a closing device having a simple structure that can be applied to an existing cylinder lock and closes the cylinder tube insertion hole 11 opened on the outer surface of the door.
[0015]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that a cup-shaped cylinder cylinder carrying a cylinder lock on the inside and projecting a mounting block on the outer periphery of the opening edge is provided with the opening end on the inside. Insert the mounting block in the lock box through the side wall of the lock box through the cylinder tube insertion hole opened on the outer surface of the door, and pass through the lock box from the free side edge of the door. The cylinder tube is fixed to the lock box with a mounting rod that penetrates the cylinder tube, and the cylinder tube is covered with a trapezoidal decorative ring that is biased in the direction close to the door surface. In the removed state, a protector ring that is a thin short cylindrical body with a flange and has an inner diameter that can be inserted through the open end of the cylinder tube is fitted into the cylinder tube insertion hole from the door outer surface side, and is removed from the protector ring. On the other hand, a liner that is divided into two or more in the circumferential direction is a thick cylindrical body having an outer diameter substantially the same as the cylinder circumscribing the mounting block of the cylinder cylinder on the outer periphery of the cylinder cylinder A block is fitted, and at least one adjustment liner having a thin annular washer-like outer diameter that is substantially the same as the opening edge of the decorative ring, and a ring-shaped portion on the outer peripheral portion. A ring liner and an adjustment liner that are in contact with the outer surface of the door when the cylinder liner is fitted to the lock box through the protector ring and fitted with a ring liner that can be formed and accommodated in the abutment. Thus, the idle stroke in the door thickness direction of the decorative ring is made substantially zero.
[0016]
【Example】
An embodiment of the present invention will be described below with reference to FIGS.
4 and 5, reference numeral 12 denotes a protector ring. The protector ring 12 is a thin cylindrical body having a flange formed at one end, and has an inner diameter that allows the opening end of the cylinder tube 2 on the mounting block 10 side to be inserted. is doing.
[0017]
The protector ring 12 is fitted in the cylinder tube insertion hole 11 (see FIG. 1) from the door outer surface side with the open end portion where the flange is not formed inward.
[0018]
The length of the protector ring 12 in the central axis direction (the length in the left-right direction in FIG. 4) is set so that a slight gap is maintained between the inner end opening and the outer surface of the lock box 3.
[0019]
Further, this protector ring 12, or an adjustment liner and a ring liner, which will be described later, are carried out in the state where the cylinder cylinder 2 is removed from the lock box before installation of the cylinder cylinder 2 in the case of new construction and in the case of an existing cylinder cylinder.
[0020]
To remove the cylinder cylinder 2 from the lock box 3, if the front plate (not shown) of the lock box is removed with the door open, the head of the mounting rod 6 (see FIG. 1) is exposed. The cylinder cylinder 2 can be removed integrally with the decorative ring 5 by, for example, screwing it with a screwdriver and then pulling it out and removing it, holding the decorative ring 5 by hand and pulling it outward.
[0021]
The protector ring 12 is secured so that it cannot be pulled out once it is mounted on the door.
[0022]
In the illustrated embodiment, for example, as shown in FIG. 5, a plurality of cylindrical portions of the protector ring 12 are cut and raised outward to form elastically deformable retaining pieces 12b. 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. 5) and the retaining piece 12b.
[0023]
By simply attaching the protector ring 12 to the outer surface of the door as described above, the same function as the door cylinder cylinder insertion hole closing device previously proposed by the present applicant with Japanese Patent Application No. 2002-173392 is exhibited. Unauthorized unlocking by inserting a wire having a special shape from the insertion hole 11 into the door can be effectively prevented.
[0024]
On the other hand, as shown in FIGS. 2 and 4, for example, two liner blocks 13 and 13 that form a cylinder are fitted to the outer peripheral portion of the cylinder cylinder 2 removed from the lock box 3.
[0025]
As shown in FIG. 2, the liner block 13 is a thick cylindrical body having an outer diameter substantially the same as the cylinder circumscribing the mounting block 10 of the cylinder cylinder 2, by cutting surfaces 14 and 4 along the generatrix. The member is divided into two pieces in the circumferential direction.
[0026]
The function of the liner block 13 is to facilitate the mounting and guiding of an adjustment liner and a ring liner, which will be described later.
[0027]
Further, as shown in FIG. 4, at the outer periphery of the liner block 13, at least one adjustment liner 15 having a thin annular washer-like outer diameter that is substantially the same as the opening edge of the decorative ring 5, As shown in FIG. 6, a ring liner 17 having a ring portion 16 formed on the outer peripheral portion is fitted.
[0028]
The ring liner 17 in the illustrated embodiment is formed by forming a ring-shaped bank portion 16 by pressing a ring-shaped thin plate and then joining a reinforcing thick plate by spot welding, for example.
[0029]
As shown in FIG. 4, the ring liner 17 configured as described above is fitted to the liner block 13 so that the adjustment bank 15 is sandwiched between the ring ring portion 16 and the decorative ring 5.
[0030]
The number of the adjustment liners 15 is adjusted according to the door thickness, that is, the amount of protrusion of the cylinder cylinder 2 from the door outer surface, and when the opening end of the cylinder cylinder 2 is attached to the lock box 3 through the protector ring, The biasing spring of the decorative link 5 is fully compressed by the ring liner and the adjustment liner that are in contact with each other, and the loose travel in the door thickness direction of the decorative ring is set to be almost zero.
[0031]
The occlusion device according to one embodiment of the present invention configured as described above cannot lift the decorative ring 5 after mounting, as is apparent from FIG. Unauthorized unlocking by inserting a wire into the insertion hole is not possible.
[0032]
Even if the decorative ring 5 is lifted by any method, the protector ring 12 closes the gap between the cylinder tube insertion hole 11 and the side of the lock box, so that the wire can reach the upper part of the lock box from the cylinder tube insertion hole 11. I can't.
[0033]
【The invention's effect】
As is apparent from the above description, the present invention allows the protector ring to be fitted into the cylinder tube insertion hole from the door outer surface side and prevents the protector ring from coming off, while a liner block is provided on the outer periphery of the cylinder tube. The outer periphery of the liner block is fitted with at least one adjustment liner having a thin annular washer-like outer diameter that is substantially the same as the opening edge of the decorative ring, and an annular portion is formed on the outer periphery. The ring liner that allows the adjustment liner to be accommodated in the abutment portion, and when the opening end of the cylinder cylinder is attached to the lock box through the protector ring, the ring liner that contacts the outer surface of the door and the adjustment liner Since the idle stroke in the door thickness direction of the decorative ring is almost zero, the decorative ring cannot be lifted first, and therefore the cylinder tube insertion hole is exposed. Can not be, a wire from which it is possible to prevent incorrect unlocking by passing it through the door.
[0034]
For the same reason, the gap between the cylinder tube insertion hole and the side of the lock box is closed by the protector ring, so that the wire cannot reach the upper part of the lock box from the cylinder tube insertion hole. Unauthorized unlocking by passing through can be prevented double.
[0035]
Furthermore, since the ring ridge portion of the ring liner covers the adjustment liner, there are various effects such as improved appearance.
[Brief description of the drawings]
FIG. 1 is a diagrammatic sectional view showing an example of mounting of a cylinder cylinder.
FIG. 2 is a front view of a cylinder cylinder.
FIG. 3 is a partial sectional side view showing an example of the structure of a lock box.
FIG. 4 is a schematic cross-sectional view of a cylinder tube mounting portion on which the obturator according to the present invention is mounted.
FIG. 5 is an enlarged partial cross-sectional view of a protector ring.
FIG. 6 is a cross-sectional view of a ring liner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylinder lock 2 Cylinder cylinder 3 Lock box 4 Door 5 Makeup ring 6 Mounting rod 7 Screw groove 8 Screw hole 9 Dead cam 10 Mounting block 11 Cylinder cylinder insertion hole 12 Protector ring 13 Liner block 15 Adjustment liner 16 Ring bank 17 Ring liner

Claims (1)

Insert a cup-shaped cylinder cylinder carrying a cylinder lock on the inside and projecting a mounting block on the outer periphery of the opening edge into the cylinder cylinder insertion hole opened on the outer surface of the door with the opening end on the inside. The mounting block in the lock box penetrating through the door is inserted into the lock box from the free side edge of the door, and fixed to the lock box with a mounting rod penetrating the mounting block and lock box, and the cylinder cylinder door Covering the part protruding from the outer surface with a trapezoidal decorative ring biased in the direction close to the door surface, with the cylinder tube removed from the lock box, it is a thin short cylinder with a flange, A protector ring having an inner diameter that can be inserted through the opening end of the cylinder tube is fitted into the cylinder tube insertion hole from the door outer surface side, and the protector ring is prevented from being detached. A thick cylindrical body having the same outer diameter as the cylinder circumscribing the mounting block. A liner block divided into two or more in the circumferential direction is fitted, and a thin annular ring is fitted to the outer periphery of the liner block. A washer-like, at least one adjustment liner whose outer diameter is almost the same diameter as the opening edge of the decorative ring, and a pier part formed on the outer periphery so that the adjustment liner can be accommodated in this dam part When the ring liner is fitted and the open end of the cylinder cylinder is attached to the lock box through the protector ring, the looseness of the door in the door thickness direction of the decorative ring is made almost zero by the ring liner that contacts the outer surface of the door. A cylinder cylinder insertion hole closing device for a door, characterized in that.

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