JP2006241941A - Window locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window locking device compact in size with excellent operability and hardly visible from the outside. <P>SOLUTION: The window locking device comprises a locking device body 2 housed inside an inner meeting stile, and a lock receiver 3 provided at an outer meeting stile. The locking device body 2 has a case 21; a crescent hook 23 journaled to the case 21; a guide pin 24 fixed to the centrifugal side of the crescent hook 23; a sliding member 22 slidably held in the case 21 having an engaging elongate hole 224 engaged with the guide pin 24 and turning the crescent hook 23; and an operating member 25 with one end fixed to the sliding member 22. Since the locking device is enclosed within the inner meeting stile, it is invisible from the outside of a window. A crime preventing effect is thereby high. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a locking device for a window such as a sash window.

  In the conventional sliding window for a house, a crescent hook is provided on the outer peripheral side of the inner summoning jar of the inner shoji, and a lock receptacle is provided on the outer summoning jar of the outer shoji. For this reason, the state and position of the crescent hook being locked and unlocked easily through the window glass, making it susceptible to intruder attacks. Further, since the locking device is located on the outer peripheral side of the ridge, it protrudes from the ridge, obstructs the field of view, and is not preferable in terms of design.

As a solution, a window locking device in which a locking device is housed in a cage has been proposed.
JP, 2003-003716, A In this window locking device, there was a problem that the operation part of locking was greatly projected to the perimeter side of a bag, or operability was bad.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a window locking device that is difficult to visually recognize from the outside, is compact, and has excellent operability.

Means, actions and effects for solving the problems

  The window locking device of the present invention is a window locking device comprising a lock device main body stored inside an inner summoning jar of a shoji, and a lock holder provided on the outer summoning jar of the shoji. The lock device main body includes a case, a crescent hook pivotally supported by the case, a guide pin fixed to the distal side of the crescent hook, and slidably held in the case and engaged with the guide pin. It has a sliding member which has an engagement long hole, and rotates this crescent hook, and an operation member by which one end was fixed to this sliding member, It is characterized by the above-mentioned.

  In the window locking device according to the present invention, all the portions other than the distal end portion of the operation member of the lock device main body are stored in the inner summoning tub of the inner shoji. When the lock receiver and the crescent hook provided on the inner sump of the external shoji are engaged, the lock receiver and the crescent hook are in contact with each other. Hidden in the summon bowl and cannot be seen, and has excellent crime prevention.

  Moreover, since all the parts other than the front-end | tip part of an operation member are accommodated in the inside of a bag, it is compact. Furthermore, since the tip of the operating member can be locked and unlocked by driving in the direction in which the heel extends, the operability is excellent.

  The window locking device of the present invention uses a crescent hook. As is well known in the art, the crescent hook is provided integrally with the axially supported fan-shaped part and the outer peripheral end of the fan-shaped part, and has a predetermined width in the axial direction from one end side to the other end side. It has a crescent-shaped engaging part that shortens the distance from the axis. The lock device main body of the window locking device of the present invention is stored in the inner summoning tub of the shoji using this crescent hook.

  The lock device main body has a crescent hook, a case pivotally supporting the crescent hook, a guide pin fixed to the centrifugal side of the crescent hook, and an engagement elongated hole that is slidably held in the case and engages with the guide pin. A sliding member and an operation member having one end fixed to the sliding member.

  The case may have a substrate portion fixed to the opposing wall portion of the inner summing bowl facing the outer summing bowl and a pair of side plate portions that rise at a predetermined interval from the substrate portion. The substrate portion has a hook window from which the tip of the crescent hook protrudes. The pair of side plate portions can have a crescent hook between the side plate portions so as to support the shaft portion and to have an isolated elongated hole in which each end portion of the guide pin protrudes and is guided.

  The crescent hook that engages with the lock receiver is biased in a direction proximate to the lock receiver. This urging force acts on the axially supported case, and further acts on the inner summon bowl where the case is fixed. As a result, the outer summon bowl and the inner summon bowl to which the lock receiver is fixed are fixed close to each other.

  The end portions of the guide pins are inserted through the isolated elongated holes provided in the pair of side plate portions of the case, and both end portions are guided. As a result, the guide pin is movable only in the direction in which the isolated elongated hole extends. The center of curvature of the arcuate slot is located on the axis of the crescent hook. The distance from the pivot support center of the crescent hook to the position where the guide pin is fixed is related to the torque for rotating the crescent hook.

  It is preferable that each end of the guide pin projecting from the arcuate slot is a head wider than the width of the arcuate slot. By making this large head, the head of the guide pin is not detached from the isolated elongated hole, and the guide pin is more reliably guided to the isolated elongated hole.

  The sliding member may have a back plate portion to which one end of the operation member is fixed, and a pair of driving side plate portions having rising engagement slots at a predetermined interval from the back plate portion. The pair of drive side plate portions have a sliding direction long hole through which the shaft portion of the crescent hook is inserted and extends in the sliding direction, and an engagement long hole extending in a direction crossing the sliding direction long hole. can do. In this sliding member, the pair of driving side plates are held inside the pair of side plates of the case, and the shaft portion of the crescent hook is inserted into the long slot in the sliding direction. On the other hand, relative movement is possible only in one direction, and relative directions other than the sliding direction are blocked.

  In addition, both ends of the guide pin are always located at a position where the isolated elongated hole in the side plate portion of the case intersects with the engagement elongated hole in the drive side plate portion of the sliding member. Displacement such as torsion with respect to the crescent hook to which the positioning pin is fixed is fixed. Thus, the guide pin can reliably transmit the movement of the sliding member to the crescent hook.

  It is desirable to interpose a pair of spacers through which the shaft portion is inserted and slidably contact the inner surface of each drive side plate portion. The movement of the crescent hook in the axial direction is restricted by the pair of spacers, and even if the urging force in the axial direction is applied to the crescent hook from the lock receiving member, the crescent hook does not move in the axial direction and resists the urging force. Can do.

  The pair of side plate portions of the case may have a guide for slidingly guiding the back plate portion of the sliding member. By this guide, the sliding member is more securely held in the sliding position in the case.

  Further, the lock device main body may have an operation cover having a guide long hole through which the operation member is inserted, fixed to the opposite wall portion and the back wall portion facing away from the stored summoning bowl. . As a result, the operating member is guided into the guide slot, and the movement of the operating member due to the operation is stabilized. Between the operation cover and the operation member, there can be provided a locking means for locking the operation cover and the operation member in a state where the crescent hook and the lock receiver are engaged. Since the operating member does not move unless the locking means is released, the locking device is more effective against illegal unlocking.

  Hereinafter, the Example of the locking device of the window of this invention is described. This window locking device 1 is used to lock the inner and outer children 12 and 13 of the sliding window 11 shown in FIG. As shown in FIG. 2, which is an enlarged cross-sectional view seen from the direction AA in FIG. 1, the locking device 1 includes a locking device main body 2 provided on an inner summoning ridge 121 extending in the vertical direction of the inner shoji 12. It consists of the lock receptacle 3 provided in the outer summoning hook 131 extending in the vertical direction of the external shoji 13.

  As shown in FIG. 3 which is a cross-sectional view of the lock device main body 2 viewed from the BB direction in FIG. 2 and FIG. The inner case 22, the crescent hook 23, the guide pin 24, and the operation member 25 are included.

  The outer case 21 has a box shape formed of a hexahedron having a substrate portion 211 and a pair of side plate portions 212 and 212 fixed to the back surface of the substrate portion 211. The substrate portion 211 has a rectangular hook window 215 at the center thereof. Further, the pair of side plate portions 212 and 212 have a shaft hole 216 and an arcuate slot 217 extending concentrically with the shaft hole 216. In the outer case 21, a resin guide 218 that is long in the vertical direction and has a long hole in the central portion is fixed to a portion close to the board portion 211 and the plate portion facing away from the substrate portion 211.

  The inner case 22 is formed by bending a single metal plate into a U-shaped cross section, and includes a pair of drive side plate portions 221 and 221 and a back plate portion 222 connecting them. The pair of drive side plate portions 221 and 221 has a first elongated hole 223 extending in the vertical direction overlapping the shaft hole 216 of the outer case 21 and a first elongated hole extending in the horizontal direction perpendicular to the extending direction of the first elongated hole 223. It has two long holes 224. The inner case 22 has a back plate portion 222 accommodated between the substrate plate 211 of the outer case 21 and the guide 218 so as to be relatively movable in the vertical direction.

  As shown in FIG. 4, the crescent hook 23 has a fan-shaped central portion 233 having a swing shaft hole 231 and a drive shaft hole 232, and a crescent-shaped engaging portion parallel to the axis from the isolated peripheral edge of the central portion 233. 234. The tip portion 235 at one end of the engaging portion 234 protrudes from the central portion 233. The distance between the engagement portion 234 and the swing shaft hole 231 is the longest distance from the tip portion 235 to the swing shaft hole 231, and the portion of the engagement portion 234 away from the tip portion 235 is the swing shaft hole. The distance to is shortened. The central portion 234 protrudes on the side facing away from the tip portion 235, and a drive shaft hole 232 is formed there.

  The crescent hook 23 has a swing shaft 236 that is inserted into the swing shaft hole 231. Both ends of the swing shaft 236 are inserted through the first elongated hole 223 of the inner case 22, and further the shaft hole 216 of the outer case 21 is inserted therethrough. Both end portions of the swing shaft 236 inserted through the shaft hole 216 become heads 237 larger than the shaft hole 216 so that they cannot come out of the shaft hole 216.

  Resin spacers 238 and 238 are provided on the swing shaft 236 between the crescent hook 23 and the drive side plate portions 221 and 221 of the inner case 22, respectively. Further, resin is provided between the drive side plate portions 221 and 221 of the inner case 22 and the side plate portions 212 and 212 of the outer case 21, and between the side plate portions 212 and 212 and the head portions 237 and 237 of the swing shaft 236, respectively. A sliding sheet (not shown) is provided. These spacers 238 and 238 and the sliding sheet prevent the metal from contacting each other and keep smooth sliding. The spacers 238 and 238 further serve to position the crescent hook at the center of the swing shaft 236.

  The lock receiver 3 that engages with the engaging portion 234 of the crescent hook 23 has an H-shaped base 31 and a base of the base as shown in FIG. The engaging portion 33 has a tip portion 32 that rises from one end side of the central portion and extends in parallel with the base portion 31 and an abutting wall portion 34 that rises from the other end side of the central portion. At the four corners of the base portion 31, there are screw holes 311 for fixing to the outside summit bar 131 with screws.

  The guide pin 24 has a rod-shaped main body and heads fixed to both ends thereof. The guide pin 24 is inserted and held in the drive shaft 236 of the crescent hook 23, and both end portions thereof are inserted through the second elongated hole 224 of the inner case 21 and the isolated elongated hole 217 of the outer case 21. The heads at both ends are located outside the pair of side plate portions that are inserted through the isolated elongated holes 217. The guide pins 24 between the crescent hook 23 and the drive side plate portions 221 and 221 of the inner case 22 are provided with resin spacers (not shown), respectively, and the drive side plate portion of the inner case 22 is further provided. Resin sliding sheets (not shown) are provided between 221 and 221 and the side plate portions 212 and 212 of the outer case 21 and between the side plate portions 212 and 212 and the head of the guide pin 24, respectively. ing.

  The operation member 25 includes a knob cover 251, a knob 252, a back plate 253, a coupling rod 254, and a compression spring 255. The knob cover 251 is made of a resin having a protruding portion that is inserted into and fixed to an opening provided in the inner summoning bowl 121, and has a long slot 511 that is long in the vertical direction at the center in the width direction and a guide groove 512 that extends in the vertical direction on the back surface. And a locking wall 513.

  The back of the knob 252 is housed in the elongated hole 511 of the knob cover 251 and is slidably guided and held by the knob cover 251. The back plate 253 is a member that is fixed integrally with the knob 252 and covers the elongated hole 511 of the knob cover 251. The back plate 253 has a locking projection 531 guided by the guide groove 512 and locked to the locking wall 513 on the surface side. A central portion of the knob 252 and the back plate 253 that are integrated with each other has an engagement deep hole that opens to the back side.

  One end of the connecting rod 254 is fixed to the inner case 22, and a rod-like portion at the other end is attached to the engaging deep hole of the knob 252 and the back plate 253 so as to be relatively movable in the axial direction. The compression spring 255 is attached to the connecting rod 254 and biases the inner case 22 and the back plate 253 away from each other.

  The window locking device of this embodiment has the above-described configuration.

  When the knob 252 of the locking device is pushed upward with a finger in FIG. 3, the knob 252 and the back plate 253 are pushed upward integrally with the knob cover 251. This upward movement is transmitted to the inner case 22 by the connecting rod 254, and the inner case 22 also moves upward in the outer case 21. The guide pins 24 whose both ends are inserted into and engaged with a pair of two second elongated holes 224 of the inner case 22 are pushed by the inner case 22 along the isolated elongated holes 217 of the outer case 21. Move upward. Since the guide pin 24 is inserted through and engaged with the drive shaft hole 232 of the crescent hook 23, the movement of the guide pin 24 rotates the crescent hook 23 in the counterclockwise direction. By this rotation, the tip end portion 235 of the engaging portion 234 of the crescent hook 23 enters between the locking portion 33 of the lock receiving member 3 and the abutting wall portion 34. When the knob 252 is pushed further upward and the crescent hook 23 further rotates, the engaging portion 234 of the crescent hook 23 advances from the distal end portion 235 to the back, and the engaging portion 235 of the crescent hook 23 engages with the lock receiver 3. It abuts against the stopper 33 and pulls the locking part 33 toward the outer case. Since the locking portion 33 is fixed integrally with the lock receiver 3 and the outer summoning hook 131, the outer summoning hook 131 is drawn to the inner summoning hook 121 by the crescent hook 23. As a result, the outside summoning bowl 131 and the inside summoning bowl 121 are fixed.

  When the knob 252 is pushed upward, the back plate 253 also moves upward, and the locking projection 531 of the back plate 253 moves upward in the guide groove 512 of the knob cover 251 and gets over the locking wall 513. Since the back plate 253 is pressed by the compression spring 255 toward the knob cover 251, the locking projection 531 cannot get over the locking wall 531 in the reverse direction and is locked. In this release, the knob 252 is pressed in the reverse direction, the compression spring 255 is pressed in the reverse direction, and the locking protrusion 531 is pushed up from the locking wall 531 to get over the locking wall 531. As a result, the lock is released.

  Since the lock body of the window locking device of this embodiment is housed in the inner summon bowl 121, the locking device cannot be seen from the outside of the window. For this reason, the crime prevention effect is high. Moreover, since the part which has come out of the inner summon bowl is only the tip part of the knob 252, there is no problem in design.

  The locking device is compact enough to be housed inside the bag. Furthermore, since the tip of the operating member can be locked and unlocked by driving in the direction in which the heel extends, the operability is excellent.

  Further, both end portions of the guide pin 24 are always located at a position where the isolated elongated hole 217 of the side plate portion 212 of the outer case 21 and the engagement elongated hole 222 of the driving side plate portion 221 of the inner case 22 intersect each other. The guide pin 24 is positioned at both ends thereof, and displacement such as twisting with respect to the crescent hook 23 to which the guide pin 24 is fixed is prevented. As a result, the guide pin 24 can reliably transmit the movement of the inner case 22 to the crescent hook 23.

It is an elevational view of a window having a window locking device of an embodiment. It is the expanded sectional view seen from the AA direction of FIG. It is sectional drawing seen from the BB direction of FIG. It is a side view of a crescent hook. It is a top view, a longitudinal cross-sectional view, and a transverse cross-sectional view of the lock receiver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Locking device of window 2: Locking device main body 3: Lock receiving device 11: Sliding window 12: Inner shoji 13: Outer shoji 21: Outer case 22: Inner case 23: Crescent hook 24: Guide pin 25: Operation member

Claims (8)

A locking device for a window comprising a locking device main body housed inside an inner summoning jar of the inner shoji, and a lock holder provided on the outer summoning jar of the outer shoji,
The lock device main body includes a case, a crescent hook pivotally supported by the case, a guide pin fixed to the distal side of the crescent hook, and a slidably held in the case and engaged with the guide pin. A window locking device comprising: a sliding member having an elongated hole and rotating the crescent hook; and an operation member having one end fixed to the sliding member.   The case has a substrate portion fixed to an opposing wall portion of the inner summing bowl facing the outer summing bowl and a pair of side plate portions rising at a predetermined interval from the substrate section. And a pair of side plate portions that support the shaft portion of the crescent hook, and each end portion of the guide pin protrudes and is guided. The window locking device according to claim 1, which has a hole.   3. The window locking device according to claim 2, wherein the end portion of the guide pin that protrudes from the arcuate slot is a head that is wider than the width of the arcuate slot.   The sliding member rises at a predetermined interval from the back plate portion to which one end of the operation member is fixed, and slides on the inner surface of the pair of side plate portions of the case and has the engagement elongated hole. A pair of drive side plate portions, the drive side plate portion has a sliding direction elongated hole through which the shaft portion of the crescent hook extends and extends in the sliding direction, and the engagement elongated hole is in the sliding direction 4. The window locking device according to claim 2, wherein the window locking device extends in a direction intersecting with the long hole.   The window locking device according to claim 4, wherein the shaft portion of the crescent hook has a pair of spacers that are inserted through and slidably contact the inner surfaces of the drive side plate portions.   5. The window locking device according to claim 4, wherein the pair of side plate portions has a guide for slidingly guiding the back plate portion of the sliding member.   7. The window according to claim 1, wherein the lock device main body has an operation cover that is fixed to a back wall portion facing the opposite wall portion of the inner summoning bowl and has a guide elongated hole through which the operation member is inserted. Locking device.   8. The window lock according to claim 1, wherein the operation cover and the operation member have locking means for locking the operation cover and the operation member in a state where the crescent hook is engaged with the lock receiver. apparatus.

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