US3525830A - Lock switch devices - Google Patents

Lock switch devices Download PDF

Info

Publication number
US3525830A
US3525830A US3525830DA US3525830A US 3525830 A US3525830 A US 3525830A US 3525830D A US3525830D A US 3525830DA US 3525830 A US3525830 A US 3525830A
Authority
US
United States
Prior art keywords
bolt
switch
housing
plug
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Other languages
English (en)
Inventor
Paul Maddison Hawkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Alarm Corp
Original Assignee
General Alarm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Alarm Corp filed Critical General Alarm Corp
Application granted granted Critical
Publication of US3525830A publication Critical patent/US3525830A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/083—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate
    • E05B45/086—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate by transverse movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5146—Window
    • Y10T70/515—Sliding sash

Definitions

  • This invention relates to lock-switch arrangements of the type which respond to jimmying or prying forces to signal an attempted unauthorized intrusion.
  • the present invention eliminates the diflculties associated with the construction and installation of lockswitches. Moreover, it permits simple and convenient surface mounted installations and yet maintains a full degree of protection to the closure.
  • a lock switch arrangement comprising a bolt ⁇ housing mounted for limited movement with respect to an anchor plate.
  • the anchor plate is secured, as by screws, to the surface of a door, window or to the surrounding frame.
  • a switch is arranged in conjunction with the anchor plate and bolt housing to be actuated Whenever any forcible attempt is made to lift the housing and expose the anchor screws. 'Ihis switch of course also becomes actuated by any attempt to forcibly open the door or window on which the lock-switch arrangement is mounted.
  • one embodiment of the present invention comprises a self contained unit which utilizes novel switching means to initiate a locally generated acoustical alarm.
  • a novel strike-switch arrangement which responds to prying or jimmying forces applied thereto through the lock bolt.
  • This novel strike switch is rugged and reliable and yet it is of compact and economical construction, and is suitable for mounting in a window or door frame without major structural modification thereof.
  • This novel strike-switch comprises a guide-block, slideblock arrangement with the slide-block arranged to slide in a groove or channel along the guide-block.
  • a special housing arrangement is provided for the guide block as is special spring means to bias the slide-block to one end of the channel.
  • a switch is mounted on the back of the guide block, and this switch is connected as through a slot in the guide block to be operated by movements of the slide block.
  • FIG. 1 is a front elevational view illustrating a window arrangement incorporating one embodiment of the present invention
  • FIG. 2 is an enlarged fragmentary perspective View illustrating the mounting of the embodiment of FIG. 1;
  • FIG. 3 is a perspective View, partially broken away, of the block and switch portions of the arrangement of FIG. l;
  • FIG. 4 is an enlarged fragmentary perspective view, partially broken away, showing the internal configuration of the lock-switch arrangement of FIG. 1;
  • FIG. 5 is an enlarged section view taken along line 5-5 of FIG. 1;
  • FIG. 6 is an exploded view of the lock and switch portions of the arrangement of FIG. 1;
  • FIG. 7 is a section view taken along line 77 of FIG. 2;
  • FIG. 8 is section view similar to FIG. 7 but showing the lock and switch arrangement in protracted or locking condition
  • FIG. 9 is a perspective view illustrating a lock and alarm arrangement forming a second embodiment of the present invention:
  • FIG. 10 is a view taken along line 10-10 of FIG. 9;
  • FIG. 11 is a view taken along line 11-11 of FIG. 9;
  • FIG. 12 is a View similar to FIG. 11 but showing the device in forced or alarm actuating condition
  • FIG. 13 is a section view taken along line 13-13 of FIG. 9;
  • FIG. 14 is a View similar to FIG. 13 showing the device in its triggered condition
  • FIG. 15 is a view taken along line 15--15 of FIG. 13;
  • FIG. 16 is a view taken along line 16-16 of FIG. 14;
  • FIG. 17 is a partially exploded View of the embodiment of FIG. 9;
  • FIG. 18 is a fully exploded view of the embodiment of FIG. 9;
  • FIG. 19 is a perspective view of a window arrangement sho-wing a further embodiment of the present invention.
  • FIG. 20 is a partially exploded view of the embodiment shown in FIG. 19;
  • FIG. 21 is a section view taken along line 21-21 of FIG. 19,
  • FIG. 22 is an exploded view of a portion of the embodiment of FIG. 19;
  • FIG. 23 is a section View taken along line 23-23 of FIG. 2l;
  • FIG. 24 is a perspective view showing a still further embodiment of the present invention.
  • FIG. 25 is an exploded view showing the internal configuration of the embodiment of FIG. 24.
  • FIG. 1 illustrates a window installation arrangement incorporating one embodiment of the present invention.
  • a lock-switch structure depicted generally at 30, is arranged to lock a lower sash 32 of a window arrangement 34.
  • the lock-switch 30 is secured to a window frame 36 in which the lower sash 32 slides.
  • the lock-switch 30 is also positioned at a location where the lower sash 32 and an upper sash 38 overlap when the two sashes are in their fully closed positions as illustrated in FIG. 1.
  • FIG. 2 shows in greater detail the general construction of the lock-switch arrangement 30.
  • the device is made up of an anchor member 40 which is secured to the window frame 36, and a bolt housing 42, which is nested in a corner recess in the anchor member 40.
  • the housing 42 and the anchor member 40 as shown, are dimensioned so that when they are nested together, their outer surfaces are contiguous so as to provide the appearance of ⁇ a single compact block.
  • the housing 42 has a plug bore 44 extending therethrough in a direction transverse to the direction of movement of the lower sash 32.
  • the bore extending through the housing 42 extends in a horizontal direction toward and away from the lower sash 32.
  • a cylindrical plug 46 is closely fitted into the plug bore 44 of the housing 42.
  • a key operated lock cylinder 48 which extends into the plug 46 and which has a key slot 50 exposed at the front surface of the plug 46.
  • the anchor member 40 is made up of a relatively thin ange portion 50 and a thicker switch housing portion 52 which extends out from the ange portion.
  • the flange portion 50 iS provided with several mounting holes 54 through which screws or bolts may pass to secure the anchor member 40 against the windo-w frame 36. It will be noted that the holes 54 are completely covered by the bolt housing 42 when the device is fully assembled.
  • the switch housing portion 52 of the anchor member 40 is provided with a recess 56 which opens out onto the surface coinciding with the outer face of the flange portion 50.
  • An electrical switch 58 is set inside the recess 56.
  • the switch 58 includes an actuation button 60 and a flexible leaf-spring switch arm 62 which extends over the button 60.
  • This switch arm 62 is normally in an upward position up off from the button 60; but it is held down against the button 60 by the action of the bolt housing 42 when the bolt housing is in its normal or unactuated position as shown in FIGS. 2 and 3.
  • a smaller diameter opening 64 is provided in the end of the bolt housing 42 which faces the window sash 32, in order to permit projection of a locking bolt as will be explained more fully hereinafter.
  • the anchor member 40 is mounted so that its anged portion 50 lies flat against the window frame 36 in a position adjacent to the front surface of the window sash 32.
  • the switch recess 56 is covered by the window frame 36.
  • the mounting bolt openings 54 are covered by the bolt housing 42.
  • the plug bore 44 in the bolt housing 42 opens out onto the front end of the housing 42.
  • the bore 44 extends through the housing to a location close to, but not all the way to the opposite end of the housing, thereby leaving an end wall 66 at the opposite end of the housing.
  • the bolt opening 64 passes through the end wall 66 thereby communicating with the plug bore 44.
  • the plug 46 which ts closely within the plug bore 44 is considerably shorter in length than the bore 44 and therefore can move reciprocally back and forth within the bore.
  • a cylindrical locking bolt 68 is integrally attached to the inner end of the plug 46 and extends from the plug 46 in alignment with the bolt opening 64. Thus when the plug 46 moves back and forth 4 along the plug bore 46 the locking bolt 68 projects from and retracts into the bore 64.
  • means are provided for securing the plug 46 in its inward position as shown. This hold the bolt 68 in protracted position extending out from the housing 42 and into the lower sash 32.
  • the lower sash 32 is provided with a bolt receiving arrangement comprising a tubular bolt receiving housing 70.
  • This bolt receiving housing is of tubular conguration and has an internal diameter dimensioned to accommodate the bolt 68 in close sliding relationship when the bolt is projected as illustrated in FIG. 4. It will thus be seen that when the bolt 68 is projected, the lower sash 32 cannot be moved upwardly because it is held through the action of the bolt 68, the plug 46, the bolt housing 42 and the anchor member 40 to the window frame 36.
  • the present arrangement is further adapted to provide automatic locking for the upper window sash 38 at the same time that the lower window sash 32 is locked in place.
  • the lower window sash 32 is provided with the bore 72 which extends completely therethrough.
  • the tubular bolt receiving housing 70 extends completely through the bore 72 and opens out onto the opposite face of the window sash 32.
  • an additional spring biased bolt member 74 which is normally maintained completely within its housing 70. However, whenever the bolt 68 is projected into the housing 70, it displaces the bolt 74 causing it to project out toward the upper window sash 38.
  • the upper window sash 38 is likewise provided with its own bolt receiving housing 76 in alignment with the bolt 74 when the upper and lower sashes are in their fully closed positions.
  • this action also causes projection of the bolt 74 from the lower shaft 32 into the bolt receiving housing 76 in the upper sash 38, thereby also locking that sash in closed position.
  • the bolt receiving housing 72 in the lower sash 32 is best illustrated in FIG. 5.
  • the bolt 74 is provided with a larger diameter portion 78 in the region thereof closest to the lock-switch device 30. It is this larger diameter portion 78 which is contacted by the locking bolt 68 of the lock-switch device 30.
  • the housing 70 itself is provided with the longitudinal slot in the region of the enlarged portion 78; and a small guide screw 82 is threaded through the slot 80 and into the larger diameter portion 78 of the bolt 74 so that its head projects into the slot 80.
  • the screw 82 allows the bolt 74 to move back and forth over a distance corresponding to the length of the slot 80.
  • a bias spring 84 surrounds the bolt 74 between its larger diameter portion 78 and a wall 85 at the inner end of the housing 70. The spring 84 normally holds the bolt 74 in a retracted position as shown in FIG. 5.
  • the bolt housing 42 itself is provided with the longitudinal slot which extends from the plug bore 44 out onto the surface which rests against the ange portion 50 of the anchor member 40.
  • a small guide screw 92 passes through the slot 90 and is threaded into the plug 46.
  • the head of the guide screw 92 thus moves back and forth along the slot 90 as the plug 46 moves back and forth within its bore 44. It will be appreciated that the guide screw 92 thus limits the amount of longitudinal movement which the plug 46 may undergo within the housing 42.
  • the position and length of the slot 90 are set so that the plug 46 may more from a first position with its outer surface flush with the outer surface with the housing 42 and the bolt 68 fully retracted, as shown in FIG. 2, and a second position, with the plug 46 lying well within the housing 42 and its locking bolt 68 fully projected into the housing 70 of the lower sash 32 as illustrated in FIG. 4.
  • the bolt housing 42 is provided with a lug 94 which fits into a recess 96 in the switch housing portion S2 of the anchor member 40.
  • a threaded force adjustment bolt 98 passes up through the center of the recess 96 and is threadedly engaged into the lug 94 of the bolt housing 42 to hold it in place on the anchor member 40.
  • the resilient leaf spring switch arm 62 passes up through the upper surface of the portion 52 and engages the housing 42 in a guide recess 100 provided therefor. When the housing 42 is flat against the upper surface of the switch housing portion 52, the surface of the recess 100 presses downwardly against the switch arm 62. However, if the housing 42 is lifted upwardly off from the surface of the switch housing portion 52, such movement will allow the switch arm 62 to move upwardly, thus actuating the switch 58.
  • the switch housing portion 52 of the anchor member 40- is provided with a counterbore 102 in alignment with and extending to a location close to the lower end of the recess 96.
  • the counterbore 102 and the recess 96 communicate with each other via a bolt accommodating opening 104 through which the bolt force adjustment 98 passes.
  • a force responsive spring 106 surrounds the force adjustment bolt 98 between the head thereof and the opening 104 in the switch housing portion 52 of the anchor member 40.
  • the spring 106 serves to pull the head of the force adjustment bolt 98 downwardly, as shown in FIG. 7, thereby pulling the bolt housing 42 down against the surface of the switch housing portion 52.
  • the plug 44 is biased toward its outer position (with the bolt 68' fully retracted) by means of one or more plug bias springs 110 which extend between the housing end wall 66 and the plug 46 itself.
  • the springs 110 are guided by means of support rods 112 which extend inwardly from the wall 66 of the housing 42 toward the plug 46.
  • the rods 112 project into inner bores 114 provided within the plug 46 itself.
  • the housing 42 is additionally provided with a latch bore 116 which extends into the interior wall surface of the plug bore 44.
  • the latch bore 116 is positioned to accommodate a latch lug 118 within the plug 46.
  • This latch lug 118 is biased outwardly by spring means (not shown), and is retracted by turning a proper key within the key cylinder 48.
  • the plug 44 is retracted as shown in FIG. 7
  • the latching lug 118 is held in its upper or retracted position by the inner surfaces of the plug bore 44.
  • the lug 46 is pushed forwardly to project its bolt 68 as illustrated in FIG. 8, the latching lug 118 comes into alignment with the latching bore 116 and projects into the bore to hold the plug 46 in its inner position against the action of the plug bias springs 110. 'Ihus the device will remain in its locked condition and cannot be taken out of its locked condition except by turning a key to retract the latching lug 118 out of the latching bore 116.
  • the device is automatically secured in its locked condition by virtue of the latching lug 118 which comes into alignment with the latching bore 116 of the bolt housing 42.
  • FIGS. 9 through 18 illustrate a self contained window lock-alarm unit according to the present invention for mounting on windows and the like and for producing a locally generated acoustical alarm Without need for external electrical power.
  • a lock-alarm unit depicted generally at 200 and mounted the top surface of a lower 'window sash 202 in close positional relationship to a slide or edging member 204 of an upper window sash 206.
  • the lock alarm unit 200 includes an anchor plate 208, which is fastened to the lower sash 202, and an outer casing 210, which fits over the anchor plate 208.
  • A11 acoustic alarm speaker 216 is mounted on top of the outer casing 210 for transmitting the locally generated alarm sounds.
  • tension adjusting bolts 218 which may be turned down to adjust the amount of prying force necessary to actuate the alarm.
  • the plug 214 is provided with a locking bolt 220y which extends from one end thereof, and which projects, when the plug 214 is pressed inwardly, into a bolt receiving recess 222 in the slide member 204 of the upper window sash 206 thereby effectively locking the upper and lower sashes 206 and 202 together.
  • the tension bolts 218 extend down through the outer casing 210, and are threaded into the anchor plate 208.
  • Force sensing springs 224 surround the bolts 218 between their heads and lower surfaces 226 of the outer casing 210.
  • the amount of force necessary to achieve this lifting action will depend upon the degree to which the tension bolts 218 are turned down, for this establishes the amount of stress with which the springs 224 resists the upward movement of the outer casing 210.
  • the outer casing 210 is basically of hollow construction and has mounted therein, just under the speaker 216, an electrically powered alarm generator 234.
  • This alarm generator may be an electrical siren such as that described in co-pending application entitled Acoustical Alarm, Ser. No. 530,883 led Mar. l, 1966; or it may comprise a conventional electrically operated buzzer.
  • the alarm generator 234 receives positive potential via a wire 236 which is connected to a grommet 238 in a battery clip 240.
  • the battery clip 240 is made of ber, plastic or other insulative material, and is constructed to contain therein one or more batteries 242, or corresponding electrical power sources.
  • the positive terminal of the battery 242 is maintained in contact with a spring like contact element 244, and this in turn is connected to the grommet 238 to complete the positive connection to the electrical alarm generator 234.
  • the negative or ground connection from the electrical alarm generator 234 is effected through the outer casing 210 which itself is of metal or other conductive material. As shown in FIG. 13, however, the negative end of the battery 242 is held, by means of an insulative button 246 at the rear of the battery clip 240, away from the outer casing 210.
  • the entire battery clip 240 is held in a forward position by the action of the lug 232, associated with the anchor member 208, upon the rear latching surface 230 of the battery clip 240.
  • spring bias means (described more fully hereinafter) act to urge the battery clip 240 in a rearward direction.
  • the outer casing 210 When the outer casing 210 is forced upwardly by a prying or jimmying action on the window sashes 204 or 206, the outer casing 210 is lifted upwardly to a slight degree from the anchor plate 208 against the action of the force responsive springs 224. This causes the rear surface 230 of the battery clip ⁇ 240 to be raised up oliC from the lug 232 on the anchor plate 208. As a result, the biasing arrangement (to be described) causes the entire battery clip 240 to move rearwardly as illustrated in FIG. 14 thereby bringing the negative end of the battery into contact with an internal shoulder 248 near the rear of the outer casing 210. This completes an electrical circuit between the battery 242 and the alarm generator 234 so as to cause the production of an acoustical alarm via the speaker 216.
  • the lug 232 is mounted on a leaf spring 250 so that when the forcing or jimmying action which causes the alarm to be sounded is removed, the battery clip 240 will simply press down upon the lug 232 but will not be moved by the lug out of contact with the shoulder 248. Thus the alarm will continue to function until the battery clip ⁇ 240 is moved forwardly again so as to break the connection at the shoulder 248 and permit the lug 232 to move upwardly behind the rear surface 230 of the battery clip 240.
  • FIGS. 15 and 16 The spring biasing arrangement which tends to move the battery clip 240 in a rearward direction is illustrated in FIGS. 15 and 16.
  • the battery clip 242 is provided with laterally extending lugs 250 which project outwardly from each side thereof. These lugs move back and forth with the battery clip 240 within longitudinal extending recesses 252 within the outer casing 210.
  • a pair of guide rods 254 extend along the recesses 252 and are secured to the outer casing 210 at the forward end of these recesses and pass through openings (not shown) in the lugs 250 to assist in guiding these lugs in their longitudinal movement.
  • Coil bias springs 256 surround the guide rods 254 between the front end of the recesses 252 and the lugs 250, and these springs urge the lugs and the battery clip 240 in a rearward direction.
  • the plug 214 additionally provides a reset function. This is achieved by the provision of a recess 260 along one side of the plug 214 (FIGS. 13-16). This recess has a tapered cam surface 262 toward the bolt end thereof. Additionally, the rear end wall 230 of the battery clip 240 tits into the recess 260 when the battery clip 240 is moved by the bias springs 256 to a rearward position as shown in FIGS. 14 and 16. When the locking plug 214 is retracted, however, to an unlocked position as shown in FIG.
  • the cam surface 262 of the recess 260 acts upon the rear wall 230 of the battery clip 240 urging the battery clip 240 to a forwardmost position.
  • the lug 232 under the inuence of its leaf spring 249 will move upwardly to latch the battery clip 240 into its forwardmost position.
  • the window sashes 202 and 206 are locked together by pushing inwardly on the plug 214 to cause the bolt 220 to project into the bolt recess 222.
  • the plug 214 moves to a position such that its recess 260 becomes aligned with the latch wall 230 of the battery clip 240.
  • the battery clip 240 upon release from the lug 232 will be enabled to move rearwardly under the influence of the bias springs 256 so that the rear of the battery 242 may contact the shoulder 248 of the outer casing 21-0 to complete the circuit between the battery 242 and the alarm generator 234 to sound an alarm.
  • FIG. 17 illustrates in 'greater detail the actual constructional details of the outer casing 210 and the anchor plate 208.
  • an elongated leaf type spring member 264 which is secured at one end to the top of the anchor plate 208 and which normally extends upwardly toward the bottom of the battery clip 240 so as to hold the battery clip 240 up into the outer casing 210.
  • FIG. 17 there are provided a pair of upwardly protruding bosses 266 on the anchor plate 208; and these bosses are threaded to receive the tension bolts 218 which proceed through the casing 210.
  • the tension bolts 218 thus permit up and down movement of the outer casing 210 and at the same time provide a certain amount of -guidance to prevent lateral movement thereof.
  • At the opposite end of the anchor plate 208 there are provided a pair of upstanding lugs 268 which protrude up into guide openings 270 in the outer casing 210 to assist in this guiding action.
  • the anchor plate 208 is secured by means of screws 272 into the upper surface of the window sash 202. It will be noted that when the outer casing 210 is in place on top of the anchor plate 208 the mounting screws 272 are completely hidden from view and access may not be had to these screws unless and until the outer casing 210 is removed. However, the outer casing 210 cannot be lifted up off the anchor plate 208 without the battery case clip 240 clearing the retaining lug 232 and being urged rearwardly to make contact with the casing shoulder 248 to set 01T the alarm. Thus the device is intrinsically tamperproof.
  • the outer casing 210 is provided with a slot 274 which extends along across its lower surface at the bolt end thereof.
  • a guide screw 276 extends into the slot 274 and is threadedly engaged with the plug 214.
  • the guide screw 276 thus prevents the plug 214 from rotating within the bore 212, and at the same time it limits the longitudinal movements of the plug between its protracted or locked, and retracted or unlocked positions.
  • FIG. 18 the various elements making up the self-contained acoustical alarm embodiment of the present invention can be seen in relation to each other. It will be appreciated that the entire assembly utilizes a relatively small number of parts and yet is compact and rugged and is essentially tamperproof. Moreover, the arrangement is inherently rugged and at the same time provides a pleasing appearance.
  • FIGS. 19-23 show an arrangement of the present in- Vention suitable for use on casement or swing out type windows.
  • a casement type window 300 is arranged to swing out in the direction of an arrow A, away from a window frame 302.
  • the window frame 302 includes a lower sill 304 which runs along the bottom of the window 300.
  • a lock-switch arrangement shown generally at 306 is mounted in conjunction with the window 300 and the frame and sill 302 and 304.
  • the lock-switch arrangement 306 comprises a bolt casing 308 which is secured to the edging of the window 300, and a strike plate arrangement 310 which is recessed into the sill 304. As shown in FIG. 19, when the Window 300 is closed, the bolt casing 308 is positioned directly above strike plate arrangement 310.
  • the 4bolt casing 308 is formed with a vertically extending bore 310 into which a lock plug 312 closely fits.
  • the lock plug 312 may be depressed downwardly into the bore 310 to project a bolt (not shown) into a bolt opening 314 in the strike plate assembly 310.
  • the strike plate assembly 310 itself is provided with a cylindrical lower housing 316 which sets into an opening provided therefor in the window sill 304.
  • the flange portion 318 is provided with a plurality of mounting holes 320 through which screws or other fastening devices may be provided to secure the assembly 310 to the window sill 304.
  • the bolt casing 308 is provided with a pair of counter-bored mounting holes 322 through which mounting screws or bolts 324 pass for securing the housing 308 to the edging of the window 300.
  • a pair of access holes 326 are arranged in alignment with the mounting holes 322 directly across the bore 310.
  • the access holes 322 permit the application of a screwdriver or other tool to secure the bolts 324 or other fastening devices in place.
  • the plug 312 when the plug 312 is positioned within the bore 310, it covers the region between at least one of the access holes 326 and its associated mounting hole 322. Thus, one may not remove the bolt housing 308 from the window 300 when the plug 312 is in place.
  • the plug 312 is provided with a bolt 328 which extendsfrom the lower end thereof out through a bolt opening 330 in the bottom of the bolt housing 308 when the plu-g 312 is in its depressed position as shown in FIG. 2l.
  • the bolt 328 is retracted entirely within the housing 308.
  • a lock cylinder 332 ' which extends through the plug 312 and which is provided with the usual key slot opening 334 (shown in FIG. 20) for turning same within the plu-g 312. Rotation of the lock cylinder 332 causes a latch lug 336 to be retracted into the side of the plug 312.
  • the latch lug 336 is resiliently biased to a projecting condition as shown in FIG. 12.
  • the latching lug 336 projects down into a recess 338 provided in the bore 310. 'Ihis serves to hold the plug 312 in its lowermost or locking condition as shown in FIG. 21.
  • the bolt 328 projects down into the opening 314 in the strike plate assembly 310. This serves to secure the bolt housing 308 and, correspondingly the window 300, to the strike plate assembly 310, thereby locking the window 300 to the still 304.
  • the strike plate assembly 310 in addition to providing an anchorage for the bolt 328, also serves to monitor any forces produced upon the window 300 which tend to move the bolt in a direction toward opening of the window.
  • a slide block 340 within the cylindrical housing 316 of the strike plate assembly 310.
  • the slide block 340 is movable in a horizontal direction back and forth within a channel 342 cut diametrically through a guide block 344 which fits closely within the cylindrical housing 316.
  • the slide block 340 is provided with a bore 346 which is dimensioned to provide close tting access to the bolt 328 when it is projected from the housing 308.
  • the slide block 340 is guided for back and forth movement within the channel 342 in the guide block 344. It will thus be seen that the slide block bore 345 moves back and forth immediately vunder the opening 314 in the strike plate assembly '310.
  • the opening 314 itself is elongated to permit the bolt 328 to move back and ⁇ forth a slight amount as the window 300 is forced in the direction of the arrow A (FIG. 19). This movement will urge the slide block 340y over a distance sufficient to traverse the clearance B (FIG. 20) between the edge of the bore 346 and the slide block 340 and one end of the elongated slot 314 in the strike plate assembly 310.
  • This lmovement of the slide block 340 is resisted by means of a compression spring 350 positioned between the slide block and the inner surface of the cylindrical housing 316.
  • the window 300 is capable of being forced toward an open position only by forces sufficient to overcome the resistance of the spring 350 when the lock assembly 306 is put in locking condition; and even when the force of the spring 350 is overcome, the window may be moved only through the distance B whereupon the bolt 328 will come in contact with the end of the elongated slot 314 and will be thereby prevented from further movement.
  • the slide block 340 is provided with an upstanding lug 351.
  • This lug engages an arm 352 on an electrical switch 354 which is mounted on the lower surface of the guide block 344.
  • the lug 351 moves back and forth within a slot 356 formed in the bottom of the guide block 344.
  • the spring 350 urges the slide block 340 in a direction such that the lug 351 thereon urges the switch arm 352 in a direction such that the switch arm presses against a switch button 358 on the switch 354 itself.
  • the switch arm 352 is of resilient material such as spring steel and normally assumes a position out and away from the button 358. The force of the spring 350 far exceeds the resilient biasing force on the switch arm 352 and therefore holds it against the switch button 358.
  • FIGS. 19-23 is quite compact and simple in construction and yet provides substantial protection and automatic signalling of any attempts to disable or remove the locking arrangement.
  • FIGS. 19-23 are designed especially for convenient and rapid mounting on window arrangements which have already been built, the principles of the present invention are also suitable for use in conjunction with arrangements designed for use on custom installation whereby window locks are specially built into the edging of the window themselves. Such an arrangement is shown in FIGS. 24 and 25.
  • FIGS. 24 and 25 there is provided a easement or swinging type window 370 made up of glass pane portions 372 and edging portions 374.
  • the edging portions 374 are of hollow construction; and they are provided with a latching handle 376 and key lock arrangement '378.
  • the window 370 swings outwardly in the direction of an arrow C to open out from a window frame 380.
  • latching elements382 In order to latch the window 370 in its closed position, there are provided latching elements382 at the bottom and the top of the window in the region of the edging 374.
  • latching elements are retracted and projected by operation of the latch handle 376; and when they are projected, the latching elements 382 project into strike assemblies 384 and 386 at the bottom and top of the window frame 380 respectively to latch the window 370 in its closed position as shown in FIG. 24.
  • the latch elements 382 become secured in their projected position so that the window is effectively locked.
  • the window edging 374 includes front and rear channel members 388 and 390 which, when assembled form a hollow passageway extending from the bottom to the top of the window.
  • Guide blocks 392 are provided at the top and bottom of the edging 374. These guide blocks have bores formed therethrough to permit the latching elements 382 to project and retract from the window 370.
  • the latching elements 382 are secured to plates 394 near the center of the edging 374 within the channel members 386 and 390. Each of these plates are provided with a gear rack 396 which meshes with an operating gear 398.
  • the gear 398 is connected by means of a coupler -400 to the latch knob 376 so as to be turned in place thereby.
  • latch knob 376 thus rotates the gear 398 causing one of the racks 396 to move upwardly and the other to move downwardly thus retracting or projecting the latch elements 382 together.
  • an opening 402 in one of the plates 394 comes into alignment with locking bolt element 404 operated by the lock 37 8.
  • the bolt element 440 passes into the opening 402 thus t secure the latching elements 3-82 in their projected or locking condition.
  • the lower strike plate assembly is of the same construction as the strike plate assembly 310 of the embodiment shown in FIGS. l9-23.
  • the upper strike plate assembly 384 may likewise be constructed in the manner of the lower strike plate assembly 38'6 so as to insure that any prying action either at the top or the bottom of the window 370 will result in actuation of the switching arrangement to sound an alarm.
  • a lock-switch assembly comprising a bolt housing having a bolt moveable therein between a iirst position lying wholly within said housing and a second position projecting out from said housing, an anchor member, means for securing said anchor member to the surface of a closure member, said means being exposed on a given surface of said anchor member, means mounting said bolt housing to said anchor member to cover its said given surface and said securing means, said mounting means including spring means arranged to permit limited relative movement between said bolt housing and said anchor member in response to prying forces in excess of a given amount and a switch mounted and connected between said anchor member and said housing to be operated by movements of said bolt housing with respect to said anchor member.
  • a lock-alarm device comprising an anchor plate constructed to be secured to a closure member, securing means exposed on a given surface of said anchor plate for securing same to said closure member, an outer casing, means mounting said outer casing to said anchor plate to cover said given surface and said securing means in a manner allowing limited movement of said casing up from said plate, said mounting means including spring means arranged to resist such movement of said casing, a lock bolt mounted in said casing to move between retracted and projected positions, electrical switching means positioned inside said casing and spring biased to an operation condition, and latching means within said casing for holding said switching means in inoperative condition against said spring bias, said latching means being releasable upon upward movement of said casing with respect to said anchor plate.
  • a lock-alarm device comprising an anchor plate constructed to be secured to a closure member, securing means exposed on a given surface of said anchor plate for securing same to said closure member, and outer casing, means mounting said outer casing to said anchor plate to cover said given surface and said securing means in a manner allowing limited movement of said casing with respect to said plate, said mounting means including spring means arranged to resist movement of said casing away from said plate, a locking bolt mounted in said casing to move between retracted and projected positions, electrical switching means carried lby said casing, resilient biasing means carried by said casing ⁇ and urging said switch means to an operative condition and latching means operating between said switch means and said anchor plate to hold said switch means against the action of said resilient biasing means while said outer casing is down against said anchor plate and to release said switch means when said casing undergoes said limited movement.
  • a lock-alarm device comprising an anchor plate constructed to be secured to a closure member, an outer ca'sing, means mounting said outer casing to said anchor plate in a manner allowing limited movement of said casing with respect to said plate, said mounting means including spring means arranged to resist movement of said casing away from said plate, a locking bolt mounted in said casing to move between retracted and projected positions, electrical switching means carried by said casing, resilient biasing means carried by said casing and urging said switch means to an operative condition and latching means operating between said switch means and said anchor plate to hold said switch means against the action of said resilient biasing means while said outer casing is down against said anchor plate and to release said switch means when said casing undergoes said limited movement, said Ibolt being provided with cam means en ⁇ gageable with said switch means to retract said switch means against said resilient biasing means to an inoperative condition and to effect reengagernent ot' said latching means up retraction of said bolt.
  • a lock-alarm device comprising an anchor plate constructed to be secured to a closure member, an outer casing, means mounting said outer casing to said anchor plate in a manner allowing limited movement of said casing with respect to said plate, said mounting means including spring means arranged to resist movement of said casing away from said plate, a locking bolt mounted in said casing to move between retracted and projected positions, electrical switching means carried by said casing, resilient biasing means carried by said casing and urging said switch means to an operative condition and latching means operating between said switch means and said anchor plate to hold said switch means against the action of said resilient biasing means while said outer casing is down against said anchor plate and to release said switch means when said casing undergoes said limited movement, said switching means comprising a switch member mounted for limited reciprocal movement within said outer casing, said switching means further including a iirst switch contact carried by said member and a second switch contact carrier by said casing, said switch contacts being arranged to touch upon movement of said member ⁇ by its resilient bias.
  • a lock-alarm device as in claim 9 wherein said bolt is mounted on a plug which ts closely in a bore through said outer casing and wherein said plug is formed with a cam surface which engages said battery clip to urge it against and resilient bias upon retractive movement of said bolt.

Landscapes

  • Burglar Alarm Systems (AREA)
  • Barrages (AREA)
US3525830D 1967-03-14 1967-03-14 Lock switch devices Expired - Lifetime US3525830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62302367A 1967-03-14 1967-03-14

Publications (1)

Publication Number Publication Date
US3525830A true US3525830A (en) 1970-08-25

Family

ID=24496462

Family Applications (1)

Application Number Title Priority Date Filing Date
US3525830D Expired - Lifetime US3525830A (en) 1967-03-14 1967-03-14 Lock switch devices

Country Status (7)

Country Link
US (1) US3525830A (enrdf_load_stackoverflow)
JP (1) JPS4813394B1 (enrdf_load_stackoverflow)
BE (1) BE712103A (enrdf_load_stackoverflow)
CH (1) CH483541A (enrdf_load_stackoverflow)
DE (1) DE1653997A1 (enrdf_load_stackoverflow)
FR (1) FR1568207A (enrdf_load_stackoverflow)
GB (2) GB1229931A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755802A (en) * 1971-09-30 1973-08-28 Stanley Works Alarm bolt
US3798627A (en) * 1972-09-15 1974-03-19 A Kaufman Door guard and alarm
EP0001621A1 (de) * 1977-10-14 1979-05-02 Ljubisa Lukjanovic Alarmschalter
US4465997A (en) * 1981-01-26 1984-08-14 Security Network International, Inc. Exterior mounted door and window alarm switch
USD340199S (en) 1989-11-13 1993-10-12 Safety Technology International, Inc. Alarm for signaling unauthorized door exit and entry
US5311168A (en) * 1992-09-10 1994-05-10 Pease Industries, Inc. Lock set with self-contained door alarm and annunciator system
US20090140858A1 (en) * 2007-11-30 2009-06-04 Andersen Corporation Status Monitoring System For A Fenestration Unit
CN105834692A (zh) * 2013-11-19 2016-08-10 苏州汇诚智造工业设计有限公司 一种物联网窗口报警板的制造方法
US20170234033A1 (en) * 2016-02-12 2017-08-17 Nathan H. DeBoer Integrated fenestration status monitoring system and methods for the same
US10228266B1 (en) 2015-01-05 2019-03-12 Andersen Corporation Fenestration unit monitoring devices and methods
US10234307B1 (en) 2015-01-05 2019-03-19 Andersen Corporation Slot-based fenestration unit monitoring apparatus and methods
US10317247B1 (en) 2015-01-05 2019-06-11 Andersen Corporation Fenestration unit monitoring apparatus with tethers and methods
US10930124B2 (en) 2017-07-13 2021-02-23 Marvin Lumber And Cedar Company, Llc Integrated fenestration status monitoring systems and methods for the same
US11365561B2 (en) 2017-01-17 2022-06-21 Marvin Lumber And Cedar Company, Llc Fenestration assembly operation hardware and methods for same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2462872C2 (de) * 1974-12-11 1984-01-26 Fa. Aug. Winkhaus, 4404 Telgte Alarmauslösende Verriegelungseinrichtung
GB2207697A (en) * 1987-05-14 1989-02-08 Enoch Pinson Ltd Security shutter-lock safety and alarm system
DE4242549C1 (de) * 1992-12-16 1994-03-17 Hirschmann Richard Gmbh Co Einbruchmelderanordnung
WO2011057308A1 (de) * 2009-09-17 2011-05-19 Helmut Katherl Verriegelungssystem mit alarmfunktion für ein bauelement, wie fenster oder tür
WO2023097346A1 (en) * 2021-11-24 2023-06-01 De Villiers Marius De Wet Armed strike plate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756300A (en) * 1953-11-30 1956-07-24 Arthur J Thiberville Lock controlled switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756300A (en) * 1953-11-30 1956-07-24 Arthur J Thiberville Lock controlled switch

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755802A (en) * 1971-09-30 1973-08-28 Stanley Works Alarm bolt
US3798627A (en) * 1972-09-15 1974-03-19 A Kaufman Door guard and alarm
EP0001621A1 (de) * 1977-10-14 1979-05-02 Ljubisa Lukjanovic Alarmschalter
US4465997A (en) * 1981-01-26 1984-08-14 Security Network International, Inc. Exterior mounted door and window alarm switch
USD340199S (en) 1989-11-13 1993-10-12 Safety Technology International, Inc. Alarm for signaling unauthorized door exit and entry
US5311168A (en) * 1992-09-10 1994-05-10 Pease Industries, Inc. Lock set with self-contained door alarm and annunciator system
US20090140858A1 (en) * 2007-11-30 2009-06-04 Andersen Corporation Status Monitoring System For A Fenestration Unit
US8269627B2 (en) 2007-11-30 2012-09-18 Andersen Corporation Status monitoring system for a fenestration unit
US8624736B2 (en) 2007-11-30 2014-01-07 Andersen Corporation Status monitoring system for a fenestration unit
US9157902B2 (en) 2007-11-30 2015-10-13 Andersen Corporation Status monitoring system for a fenestration unit
CN105834692A (zh) * 2013-11-19 2016-08-10 苏州汇诚智造工业设计有限公司 一种物联网窗口报警板的制造方法
CN105834694A (zh) * 2013-11-19 2016-08-10 宿迁峰驰安防有限公司 一种窗口报警板的制造方法
CN105834693A (zh) * 2013-11-19 2016-08-10 宿迁峰驰安防有限公司 一种窗口金属报警板的制造方法
CN105834695A (zh) * 2013-11-19 2016-08-10 宿迁峰驰安防有限公司 带有水平开关的窗口报警板的制造方法
US10228266B1 (en) 2015-01-05 2019-03-12 Andersen Corporation Fenestration unit monitoring devices and methods
US10234307B1 (en) 2015-01-05 2019-03-19 Andersen Corporation Slot-based fenestration unit monitoring apparatus and methods
US10317247B1 (en) 2015-01-05 2019-06-11 Andersen Corporation Fenestration unit monitoring apparatus with tethers and methods
US20170234033A1 (en) * 2016-02-12 2017-08-17 Nathan H. DeBoer Integrated fenestration status monitoring system and methods for the same
US11015368B2 (en) * 2016-02-12 2021-05-25 Marvin Lumber And Cedar Company, Llc Integrated fenestration status monitoring system and methods for the same
US11365561B2 (en) 2017-01-17 2022-06-21 Marvin Lumber And Cedar Company, Llc Fenestration assembly operation hardware and methods for same
US10930124B2 (en) 2017-07-13 2021-02-23 Marvin Lumber And Cedar Company, Llc Integrated fenestration status monitoring systems and methods for the same
US11798383B2 (en) 2017-07-13 2023-10-24 Marvin Lomber and Cedar Company Integrated fenestration status monitoring systems and methods for the same

Also Published As

Publication number Publication date
BE712103A (enrdf_load_stackoverflow) 1968-07-15
JPS4813394B1 (enrdf_load_stackoverflow) 1973-04-26
CH483541A (fr) 1969-12-31
DE1653997A1 (de) 1971-04-15
GB1231558A (enrdf_load_stackoverflow) 1971-05-12
FR1568207A (enrdf_load_stackoverflow) 1969-05-23
GB1229931A (enrdf_load_stackoverflow) 1971-04-28

Similar Documents

Publication Publication Date Title
US3525830A (en) Lock switch devices
US4465997A (en) Exterior mounted door and window alarm switch
US6612141B2 (en) Interconnected lock with remote locking mechanism
US6584818B2 (en) Interconnected lock with lock status sensor
US7296831B2 (en) Window lock keeper
MY104120A (en) Panic device
US4346372A (en) Window operator with switch to operate a burglar alarm
US4027907A (en) Security chain lock for doors
US3851325A (en) Lock and alarm
GB1198453A (en) Closure Fastening Devices
US5039147A (en) Doorstays
US3869886A (en) Safety lock
US2818475A (en) Automatic alarm lock
US3623062A (en) Lock alarm structure
US3406386A (en) Chain lock alarm
US3714643A (en) Combined lock and alarm
US2660632A (en) Burglar alarm safety lock
US3530262A (en) Lock switch devices
US3800572A (en) Safety device for a lock and a lock including said device
US6020816A (en) Door and window lock with burglar alarm
US5111674A (en) Safe locking mechanism
US3727210A (en) Lock and alarm device
US3471188A (en) Security system
US3570285A (en) Auxiliary door lock
US2295482A (en) Burglar alarm lock