JP2006144386A - Rim lock mounting structure and rim lock mounting plate for use therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rim lock mounting structure which has a main case of a rim lock prevented from slipping out of a door even if a tool is inserted into the door to disengage screwing of the main case screwed to the door. <P>SOLUTION: The rim lock 11 is formed of a cylindrical thumb turn lug 13, a dead bolt 17 which protrudes from a side surface 15a of the main case upon rotation of the lug 13 in a locking direction, and a slipout preventive plate 19 protruding from a front end 17a of the dead bolt 17 in a direction that intersects a protruding direction of the dead bolt 17 in interlock with protrusion of the dead bolt 17. The rim lock 11 mounting structure is set up by mounting the rim lock 11 on the door 21 in a manner being exposed to the indoor surface 21a of the door 21. According to the rim lock mounting structure, the rim lock 11 is screwed to a rim lock mounting plate 23 which is screwed to the indoor surface 21a of the door 21 beforehand, and the rim lock mounting plate 23 has an engaging plate 35 almost in parallel with the main case side surface 15a so as to protrude therefrom. Further the engaging plate 35 has a through hole 37 formed therein, into which the dead bolt 17 protruding from the main case side surface 15a is inserted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting structure for a surface-mounted lock that is attached with a side surface of a main body case exposed on the indoor surface of a door, and a surface-mounted lock mounting plate used therefor.

  In recent years, using an opening that broke a small window provided on the door, a mail box entrance provided on the door, or a small hole for visitor confirmation provided on the door, an unauthorized tool is used to The crime of so-called thumb turn that illegally unlocks the thumb turn provided on the indoor surface is increasing. In contrast to this type of thumb turn, conventionally, a thumb turn knob is provided with a button that regulates the rotation of the knob, so that the knob cannot be rotated unless the button is pressed, and a rod or wire is inserted. In some cases, measures were taken so that the thumb turn could not be performed easily.

  Furthermore, for such a thumb turn, a cylinder lock is provided on the thumb turn itself, and if the key is not inserted into the cylinder thumb turn knob even from the indoor side, the thumb turn cannot be turned. Has been proposed to ensure higher crime prevention.

  However, in recent years, fraudulent acts such as turning a thumb turn have become more bold and violent. That is, for example, in the case of a surface-mounted lock that is exposed and attached to the interior surface of the door, even if the thumb turn knob is a cylinder type, open a large hole into which the hand can be inserted using a tool such as a hole saw, Hold the screwdriver tool through this hole, remove the mounting screw that secures the main case of the surface lock, remove the surface lock itself from the door, and open the door. It has been reported. In this case, if the screwing of the main body case is released, the dead bolt protruding from the main body case will come out of the door frame, so there is no engagement means between the door and the door frame, and the door can be opened. became.

  The present invention has been made in view of the above situation, and even when a tool or the like is inserted and the screwing of the main body case is released, the main body case cannot be detached from the door. An object of the present invention is to provide a surface-attached lock mounting plate used therefor, and to further improve crime prevention.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The attachment structure of the face-locking according to the first aspect of the present invention is a cylinder-type thumb turn knob 13 that can be turned by inserting a key, and the knob 13 is rotated in the locking direction. A dead bolt 17 projecting from the side surface 15a of the main body case, and a retaining member projecting from the tip 17a of the dead bolt 17 in a direction crossing the projecting direction of the dead bolt 17 in conjunction with the projecting operation of the dead bolt 17 The mounting structure of the surface-attached lock 11 provided with the plate 19 is exposed to the indoor surface 21a of the door 21 and attached.
The surface lock 11 is screwed to a surface lock mounting plate 23 that is screwed in advance to the indoor surface 21a of the door 21;
A locking plate 35 extending substantially parallel to the body case side surface 15a is extended to the surface-attached lock mounting plate 23,
The locking plate 35 is formed with an insertion hole 37 into which the dead bolt 17 protruding from the main body case side surface 15a can be fitted.

  In this surface-attached lock mounting structure, the dead bolt 17 penetrates the insertion hole 37 of the locking plate 35 and enters the dead bolt engaging portion 43 on the door frame 41 side. Even when a hand is inserted through the hole and the screwing of the main body case 15 is released by a tool, the retaining plate 19 protrudes in the crossing direction from the dead bolt 17 penetrating the locking plate 35, and the dead bolt 17 cannot be attached / detached to / from the locking plate 35, and the locking plate 35 is fixed to the door 21, so that the face-attached lock 11 cannot be removed from the door 21, and the dead bolt 17 The engagement state with the door frame 41 side is maintained, and the door 21 cannot be opened.

  The mounting structure of the surface-locking structure according to claim 2 is a position where a base plate mounting screw 25 for screwing the surface-locking mounting plate 23 to the indoor surface 21 a of the door 21 is covered by the body case 15. It is provided.

  In this surface-attached lock mounting structure, even if the screwing of the main body case 15 is released, the base plate mounting screw 25 is covered by the main body case 15 that is locked to the locking plate 35 by the retaining plate 19 so as not to fall off. Is called.

The surface-attached lock mounting plate according to claim 3 includes a cylinder-type thumb turn knob 13 that can be rotated by inserting a key, and a main body case side face 15a by rotating the knob 13 in the locking direction. A dead bolt 17 projecting from the dead bolt 17 and a retaining plate 19 projecting from the tip 17a of the dead bolt 17 in a direction crossing the projecting direction of the dead bolt 17 in conjunction with the projecting operation of the dead bolt 17 A surface-attached lock mounting plate 23 for fixing the provided surface-attached lock 11 to the indoor surface 21a of the door 21,
A base plate portion 33 having a case mounting hole 24 for screwing the main body case 15;
A plurality of base plate mounting holes 25 that are perforated at positions covered by the main body case 15 and screw the base plate portion 33 to the indoor surface 21a of the door 21;
A locking plate 35 extending substantially parallel to the body case side surface 15a from the base plate portion 33;
An insertion hole 37 into which the dead bolt 17 can be inserted, which is formed in the locking plate 35 and protrudes from the side surface 15a of the main body case;
It is characterized by comprising.

  In this surface-attached lock mounting plate, even if the screwing of the surface-attached lock 11 is released, the retaining plate 19 of the dead bolt tip 17a penetrating the engaging plate 35 is engaged with the engaging plate 35. Then, the surface-attached lock 11 is prevented from falling off from the surface-attached lock mounting plate 23.

  According to the mounting structure of the surface lock according to claim 1 of the present invention, the surface lock mounting plate is screwed to the indoor surface of the door, and the surface lock is screwed to the surface lock mounting plate. The Since the locking plate through which the dead bolt that protrudes from the surface locking penetrates is integrally provided on the surface locking mounting plate, in the locked state, the dead bolt penetrates the insertion hole of the locking plate, It will enter the dead bolt engaging part on the door frame side. Therefore, even if a hole is made in the door, and a hand is inserted through this hole and the screwing of the main body case is released by a tool, the retaining plate crosses from the dead bolt that penetrates the locking plate. Therefore, the dead bolt cannot be detached from the locking plate. As a result, the dead bolt remains interposed between the door and the door frame, and the door can be prevented from being opened. As a result, even when the surface-attached lock is unscrewed, the door can be maintained in the locked state, and the security can be improved.

  According to the mounting structure of the surface-locking device according to claim 2, since the base plate mounting screw for screwing the surface-locking mounting plate to the interior surface of the door is provided at a position covered with the main body case, Even if the screwing of the main body case to the surface lock mounting plate is released, the base plate mounting screw is covered by the main body case that is locked to the locking plate so that it cannot be removed by the retaining plate. Removal of the mounting plate can be made impossible. That is, since it becomes impossible to remove the surface-attached lock mounting plate, the dead bolt remains interposed between the door and the door frame, and the door can be prevented from being opened.

  According to the surface-attached lock mounting plate according to claim 3, the surface lock is further screwed to the surface-attached lock attachment plate in a state of being screwed to the door, and the dead bolt protruding from the surface lock is surface-attached. Since the locking plate of the lock mounting plate is penetrated, even if the screwing of the surface lock is released, the retaining plate at the tip of the dead bolt that penetrates the locking plate is locked to the locking plate. In addition, it is possible to prevent the surface-attached lock from falling off the surface-attached lock mounting plate. Therefore, the dead bolt remains in a state of being interposed between the door and the door frame, and the door can be prevented from being opened. As a result, even when the surface-attached lock is unscrewed, the door can be maintained in the locked state, and the security can be improved.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a surface-attached lock mounting structure and a surface-attached lock attaching plate used therefor according to the present invention will be described in detail with reference to the drawings.
1 is an exploded perspective view of a mounting structure for a face-lock according to the present invention, FIG. 2 is an enlarged perspective view of the face-locking mounting plate shown in FIG. 1, and FIG. 3 is a door lock by the face-locking shown in FIG. FIG. 4 is a cross-sectional view of the state, FIG. 4 is a cross-sectional view of FIG. 3, and FIG. 5 is a cross-sectional view of a state of a surface-locked state that keeps engaging with the door frame in a screw release state.
The surface lock 11 is provided with a cylinder type thumb turn knob 13 that can be rotated only by inserting a key (not shown) so as to protrude from the main body case 15 to the indoor side. A locking / unlocking mechanism unit (not shown) is provided inside the main body case 15, and the deadlock 17 protrudes from the side surface 15 a of the main body case when the knob 13 is rotated in the locking direction. Further, the locking / unlocking mechanism part is interlocked with the protrusion of the dead bolt 17 and is protruded from the distal end part 17a of the dead bolt 17 in a direction intersecting the protruding direction of the dead bolt 17 (for example, upward direction in FIG. 1). A stop plate 19 is provided. For example, the retaining plate 19 is made of a plate member formed in a substantially sickle shape, and has a base end pivotally supported with respect to the dead bolt 17 so that the dead bolt 17 can move forward and backward. It is designed to be linked.

  When the knob 13 is rotated in the unlocking direction from the locked state in which the dead bolt 17 is protruded, the dead bolt 17 is drawn into the main body case 15 and the retaining plate 19 is also retracted downward. The dead bolt 17 can be retracted.

  The body case 15 of the surface lock 11 is screwed to a surface lock mounting plate 23 that is fixed in advance to the indoor surface 21 a of the door 21. That is, a total of four main body case mounting screws 22, for example, one pair each are passed through the upper and lower portions of the main body case 15, and the main body case mounting screws 22 pass through the case mounting holes 24 of the surface-attached lock mounting plate 23. It is screwed with a nut in the door 21 or an external cylinder lock (not shown) provided outside the door 21. In FIG. 1, reference numeral 27 denotes a cover that is engaged with the main body case 15 in order to cover the main body case mounting screw 22.

  As shown in FIG. 2, a shaft through hole 29 through which an input / output shaft (not shown) protruding from the surface lock 11 passes is formed in the center portion of the surface lock mounting plate 23. Further, base plate mounting holes 31, 31 for mounting the surface-attached lock mounting plate 23 to the indoor surface 21 a of the door 21 are drilled up and down across the shaft through hole 29. The base plate mounting holes 31, 31 are disposed at positions where the main body case 15 is covered with the main body case 15 when the main body case 15 is mounted on the surface-attached lock mounting plate 23. That is, the base plate mounting screw 25 that is inserted into the base plate mounting holes 31 and 31 and fixes the surface-attached lock mounting plate 23 to the indoor surface 21 a of the door 21 is also covered by the main body case 15.

  A locking plate 35 extending in parallel along the main body case side surface 15a of the main body case 15 and obtained, for example, by bending is integrally provided on the base plate portion 33 that is the base of the surface-attached lock mounting plate 23. ing. The locking plate 35 is formed with an insertion hole 37 into which the dead bolt 17 protruding from the side surface 15a of the main body case can be fitted.

  The surface-attached lock mounting plate 23 is screwed to the indoor surface 21a of the door 21. The surface-attached lock 11 screwed to the surface-attached lock attaching plate 23 has the knob 13 rotated in the locking direction as shown in FIG. When the dead bolt 17 is moved by being moved, the dead bolt 17 passes through the insertion hole 37 of the locking plate 35.

  In the mounting structure of the surface lock 11, the surface lock 11 is further fixed to the surface lock mounting plate 23 fixed to the indoor surface 21 a of the door 21, and in the locked state, the dead protruding from the surface lock 11. The bolt 17 penetrates the locking plate 35 and enters the dead bolt engaging portion 43 on the door frame 41 side. At this time, a retaining plate 19 further protrudes upward from the tip end portion 17a of the protruding dead bolt 17.

  Therefore, as shown in FIG. 4, even if the door 21 is about to be opened, the dead bolt 17 of the face lock 11 fixed to the door 21 enters the dead bolt engaging portion 43 on the door frame 41 side. Therefore, the dead bolt 17 comes into contact with the door frame 41 and the door 21 is prevented from being opened.

  In such a normal locking state, for example, a large hole for entering a hand is opened in the door 21 and a hand with a tool such as a screwdriver is inserted through the hole, and the main body case mounting screw 22 of the main body case 15 is unscrewed. Then, as shown in FIG. 5, the main body case 15 is unscrewed from the surface-attached lock mounting plate 23. Even when such fixation with the surface-attached lock mounting plate 23 is released, the surface-attached lock 11 has the dead bolt 17 protruding through the locking plate 35, and the tip 17a has Since the retaining plate 19 is further protruded, the retaining plate 19 is caught by the locking plate 35 (see FIG. 3). As a result, the surface-attached lock 11 is prevented from falling off with the dead bolt 17 protruding from the locking plate 35.

  And since the base plate attachment screw 25 for screwing the surface-attached lock attachment plate 23 to the indoor surface 21a of the door 21 is provided at a position covered by the main body case 15, the main body with respect to the surface-attachment lock attachment plate 23 is temporarily provided. Even if the screwing of the case 15 is released, the base plate mounting screw 25 is covered by the body case 15 that is locked to the locking plate 35 so as not to fall off by the retaining plate 19, and the surface-attached locking mounting plate 23 is removed. Can be disabled. That is, since the surface-attached lock mounting plate 23 cannot be removed, the dead bolt 17 remains interposed between the door 21 and the door frame 41, that is, the locking plate 35 and the door on the door 21 side. The dead bolt 17 that cannot be removed from both ends over the engaging portion 43 on the side of the frame 41 is interposed, so that the door 21 can be prevented from being opened.

  Therefore, according to the surface-attached lock mounting structure, the surface-attached lock mounting plate 23 is screwed to the indoor surface 21 a of the door 21, and the surface-attached lock 11 is screwed to the surface-attached lock mounting plate 23. . Since the locking plate 35 is integrally provided with the locking plate 35 through which the dead bolt 17 protruding from the locking plate 11 passes, the dead bolt 17 is inserted into the locking plate 35 in the locked state. It penetrates the hole 37 and enters the dead bolt engaging portion 43 on the door frame 41 side. Even when a hole is made in the door 21 and a hand is inserted through the hole and the screwing of the main body case 15 is released by a tool, the door 21 is prevented from coming off from the dead bolt 17 penetrating the locking plate 35. Since the plate 19 protrudes in the crossing direction, the dead bolt 17 cannot be detached from the locking plate 35, and as a result, the dead bolt 17 remains interposed between the door 21 and the door frame 41, Opening of the door 21 can be prevented. As a result, even if the surface-attached lock 11 is unscrewed, the door 21 can be maintained in a locked state, and crime prevention can be improved.

  Further, according to the above-described surface-attached lock mounting plate 23, the surface-attached lock 11 is further attached to the door 21 while being screwed to the door 21, and the dead bolt 17 protruding from the surface-attached lock 11 is provided with the locking plate. 35, the retaining plate 19 of the dead bolt tip 17a penetrating the locking plate 35 is locked to the locking plate 35 even if the screwing of the surface lock 11 is released. , It is possible to prevent the faced lock 11 from falling off. And it will be in the state where the dead volt | bolt 17 has remained between the door 21 and the door frame 41, and can open | release the door 21. FIG. As a result, even if the surface-attached lock 11 is unscrewed, the door 21 can be maintained in a locked state, and crime prevention can be improved.

It is a disassembled perspective view of the attachment structure of the surface-mounted lock which concerns on this invention. FIG. 2 is an enlarged perspective view of the surface-attached lock mounting plate shown in FIG. 1. It is a front view of the door locking state by the surface locking shown in FIG. It is a cross-sectional view of FIG. It is a cross-sectional view showing the state of a lock with a surface that keeps engaging with the door frame in the screw release state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Lock with surface 13 ... Cylinder type thumb turn knob 15 ... Main body case 15a ... Side surface of main body case 17 ... Dead bolt 17a ... Tip part 19 ... Retaining plate 21 ... Door 21a ... Indoor surface 23 ... Surface-attached lock mounting plate 24 ... Case mounting hole 25 ... Base plate mounting screw 31 ... Base plate mounting hole 33 ... Base plate part 35 ... Locking plate 37 ... Insertion hole

Claims (3)

A cylinder-type thumb turn knob that can be rotated by inserting a key, a dead bolt that protrudes from the side of the main body case when the knob is rotated in the locking direction, and a protruding operation of the dead bolt. Attaching a face lock that is attached to a door lock that is exposed to the interior surface of the door, and is provided with a retaining plate that protrudes from the tip of the dead bolt in a direction that intersects the protrusion direction of the dead bolt. Structure,
The surface lock is screwed to a surface lock mounting plate screwed in advance to the indoor surface of the door,
The surface-attached lock mounting plate is extended with a locking plate substantially parallel to the side surface of the main body case.
An attachment structure for a surface-attached lock, wherein an insertion hole into which a dead bolt projecting from the side surface of the main body case can be fitted is formed in the locking plate.   2. The surface-mounted lock according to claim 1, wherein a base plate mounting screw for screwing the surface-mounted lock mounting plate to the interior surface of the door is provided at a position covered by the main body case. Mounting structure. A cylinder-type thumb turn knob that can be rotated by inserting a key, a dead bolt that protrudes from the side of the main body case when the knob is rotated in the locking direction, and a protruding operation of the dead bolt. A surface-attached lock mounting plate for fixing a surface-attached lock, which is interlocked with a retaining plate protruding from the tip of the deadbolt in a direction crossing the protruding direction of the deadbolt, to the interior surface of the door Because
A base plate portion in which a case mounting hole for screwing the main body case is formed;
A plurality of base plate mounting holes that are perforated at positions covered by the main body case and screw the base plate portion onto the interior surface of the door;
A locking plate extending substantially parallel to the side surface of the main body case from the base plate portion,
An insertion hole formed in the locking plate and projecting from the side surface of the main body case into which a dead bolt can be fitted;
A surface-attached lock mounting plate comprising:

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