CA2254164A1 - Drive for actuation of functional elements - Google Patents
Drive for actuation of functional elements Download PDFInfo
- Publication number
- CA2254164A1 CA2254164A1 CA 2254164 CA2254164A CA2254164A1 CA 2254164 A1 CA2254164 A1 CA 2254164A1 CA 2254164 CA2254164 CA 2254164 CA 2254164 A CA2254164 A CA 2254164A CA 2254164 A1 CA2254164 A1 CA 2254164A1
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- Canada
- Prior art keywords
- gear
- rotating
- drive according
- functional
- drive
- 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.)
- Abandoned
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
- E05C9/021—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening with rack and pinion mechanism
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/0017—Locks with sliding bolt without provision for latching
- E05B63/0021—Locks with sliding bolt without provision for latching the bolt being shot over an increased length by a single turning operation of the key
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
- E05B63/185—Preventing actuation of a bolt when the wing is open
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
- E05C9/026—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening comprising key-operated locks, e.g. a lock cylinder to drive auxiliary deadbolts or latch bolts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/04—Spring arrangements in locks
- E05B2015/0448—Units of springs; Two or more springs working together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
In a drive (10) for actuation of functional elements (40), e.g. a push rod, in closable surface elements such as doors, windows, hatches or the like, a rotating element(75) mounted in a frame, support, lock box or the like, which comprises a lock mortise (80) for non-rotating mounting of an actuator and a driving gear (76), as well as at least one conversion element (62) designed as a separate gear elementmounted in the frame, support, lock box (12) or the like, are parts of a preferably multi-stage gear unit (60) whose overall transmission ratio is smaller than 1. Gear element (62) engages a functional element (40) for converting a rotating and/or tilting movement of the rotating element (75) caused by an actuator into a functional movement of the functional element (40) via circumferentially arranged gear segments (63, 64, 67, 73, 77, 84). Such a gear unit is an open transmissionchain and is preferably structured in two parallel planes, with the rotating element (75) that is associated to a first gear stage (72, 76) and the gear element (62) that is associated to a second gear stage (62, 66) as well as gears (72, 66) that areassociated to the elements (75 and 62) being axially arranged one above the other.
Description
. CA 022~4164 1998-11-20 HOPPE Holding AG, Mustair Drive for Actuation of Functional Elements S p e c i f i c a t i o n The present invention relates to a drive for actuation of functional elements according to the generic portions of claims 1 and 19.
Locking of closable surface elements, such as windows, doors, hatches or the like, is achieved in numerous different ways by means of functional elements provided over the (partial) circumference of the surface element, e.g. Iatches, bolts, driving rods, push rods, pivot and tilt fittings or the like. In the field of building hardware, in particular for windows and/or doors, the functional elements comprise one or several longitudinally displaceable push rod(s) which is/are arranged on the faceplate side under a cover strip that is flush with the door or window and actuate(s) bolting elements, e.g. roller pins, pivoting bolts, hooks or round bolt latches engaging into corresponding recesses in the frame.
For driving the push rods, so-called connecting-rod drives are used which mostlyhave a rotating element pivoted in a lock box, e.g. a lock mortise through which a centered square bolt is axially passed for non-rotating mounting of a handle andwhose circumference is (at least partially) provided with an externally toothed gear rim. The latter engages into a gear lattice mounted in the push rod so that a rotating movement of the handle will be directly converted into a longitudinal movement of the push rod. The angle of traverse and the diameter of the lock mortise and of the driving gear, respectively, will determine the longitudinal stroke of the push rod.
... , . = .. ....
CA 022~4164 1998-11-20 Because of space or on-site conditions, e.g. in narrow frame sections or with sliding-door locks, the angle of traverse of the rotating element and of the lock mortise, respectively, and/or the diameter of the driving gear may be restricted so that the longitudinal stroke of the push rod is often insufficient for complete acutation of the bolting elements or for secure engagement into a strike plate.
An important objective of the invention is to avoid this, and other imperfections, by simple means. In particular, it is intended to convert a predetermined pivoting movement into a considerably increased longitudinal movement of the push rod.
Moreover, the longitudinal movement of the push rod shall be selectable even with small lock mortise dimensions, irrespective of the spindle dimension and of the angle of traverse.
Main features of fhe invention are specified in claims 1 and 19. Embodiments aredealt with in claims 2 to 18.
In a drive for the actuation of functional elements in closable surface elements, comprising a rotating element mounted in a frame, support, lock box or the like for non-rotating mounting of an actuator as well as at least one conversion element engaging a functional element and converting a rotating and/or pivoting movementof the rotating element caused by the actuator into a functional movement of thefunctional element, the invention provides according to claim 1 that the functional element is designed as a separate gear element mounted in the frame, support, lock box or the like and that the gear element and the rotating element form part of a gear unit whose overall transmission ratio is smaller than 1. In a surprisingly simple way it is thus achieved that the functional movement of the functional element is always greater than the movement of the rotating element, i.e., even the smallest rotating or pivoting movement of the rotating element acting as driving gear of the gear unit is converted into a relatively great movement of the functional element which, in turn, functions as driven gear. Because of the transmission ratio, the latter rotates faster than the driving gear actuated by the actuator. The angle through which the driven gear (functional gear) rotates is always greater than the angle through which the driving gear rotates.
The gear unit may be a single-stage unit, the gear element and the rotating element having, according to claim 2, peripheral teeth which positively engage CA 022~4164 1998-11-20 each other. This permits a simple and compact design of the gear unit which alto-gether requires only little space within a surface element. Manufacture and installation is simple, resulting in low total cost.
Advantageous is the embodiment according to claim 3, whereby the gear unit is multi-stage, preferably two-stage. This permits the optimum choice of a suitabletransmission ratio that may be varied at will and be individually adapted to most variegated functions. This is further supported by claim 4, according to which the transmission ratio of each stage is smaller than 1. Claim 5 provides that each transmission stage comprises at least two gears which may, according to claim 6,be structured in at least two parallel planes so that good and reliable power transmission will be achieved despite very small dimensions of the gear unit.
Claim 7 further proposes to associate the rotating element to a first transmission stage and the gear element to a second transmission stage whereby all gears are arranged in a narrowly confined space while warranting safe and reliable power transmission from the rotating element via the gear element and the conversion element, respectively, to the functional elements.
Particularly advantageous is the embodiment according to claim 8 whereby the rotating element and the gear element are arranged axially one above the other so that the space requirements of the gear unit are further reduced. Specifically, the driving and driven axles or shafts are arranged one above the other. Even with smallest installation dimensions and consequently restricted sizes of the rotating and conversion elements, a sufficiently great functional movement (e.g. movementof a push rod) for providing a secure locking effect of any bolting elements attached will always be obtained. Claim 9 provides that the rotating element andthe gear element have circumferentially arranged teeth which positively engage respective further gears, whereby an individual design of the transmission ratio is greatly facilitated.
Further saving of space is achieved through claim 10 which provides that associated gears are coupled to each other in a non-rotating way, e.g. by fixingthem on a common axle or by means of a driving lug engaging into a corresponding recess according to claim 11. It is advisable, according to claim 12, to provide this lug on the gear (lug gear) associated to the rotating element whereas a circumferential recess is provided on the gear (mating gear) associated to the gear element, the lug gear being preferably assigned to the first CA 022~4164 1998-11-20 transmission stage and the mating gear to the second transmission stage, whereby these gears will be incorporated into the complete structure without problem and without requiring extra space.
In certain applications it may be necessary that the rotating element and the conversion element move independently, e.g. where the conversion element is to be locked in a certain position together with the functional element, whereas the rotating element and the connected actuator are to be reset to their initial positions. For this purpose, claim 13 provides that the recess of the mating wheel has an idling aperture for the driving lug.
A further embodiment according to claim 14 is characterized in that the rotary movement of the rotating element is spring-loaded whereby the aforementioned resetting of the rotating element into an initial position can be easily effected, in particular if the rotating element has an additional external gear rim that engages a longitudinally displaceable spring-loaded rack. An advantageous space-saving arrangement of the rack is due to claim 15, according to which the additional external gear rim is assciated to an own plane parallel to the transmission planes.
Another important embodiment of the invention is defined in claim 16, according to which all toothings are designed as toothed segments. This will result in a further drastic reduction of the gear unit dimenions since the individual gears can be extremely narrow.
According to claim 17 the gear element is a spur gear that engages a push rod, and the functional element may, by claim 18, be a driving or push rod mounted for displacement along the frame, support, lock box or the like. A rotary and/or pivoting movement of the rotating element caused by the actuator will thus advantageously be converted into a longitudinal push rod movement which, owing to the transmission ratio, will be greater than the driving movement.
In a drive of the type mentioned initially, independent claim 19 provides that the rotating element and the functional element are components of an open drive chain designed so that a movement performed by the functional element will always be greater than the movement of the rotating element driving the drive chain. This structure ensures that actuation is easily and reliably effected even where there is extremely little space.
CA 022~4164 1998-11-20 Further features, details and advantages of the invention will be evident from the wording of the claims and from the following description of specific embodimentsby way of the drawings wherein:
Fig.1 is an explosion view of a connecting-rod drive, Fig. 2 is a side view of the connecting-rod drive of Fig.1, and~igs. 3a to 3e show different functional positions of the connecting-rod drive of Fig.1.
The drive 10 shown in Figs.1 and 2 as an example is located in a lock box 12 anddesigned for a sliding door (not shown). This door has as functional element a driving or push rod 40 with bolting elements (not shown) to bolt the door at another door wing or a door frame (not shown, either). The push rod 40 is located in a longitudinally displaceable way behind a strike plate or cover strip 30 which holds the lock box 12 with the drive 10 approximately in the middle of the door height.
Lock box 12 and strike plate 30 are inserted into the front end of the sliding-door wing, the strike plate 30 being flush with the door wing. Apart from the drive 10 for actuation of the push rod 40 by means of a handle or knob (not shown), the lock box 12 also accommodates a locking device 80 for bolting the push rod 40 and thesliding door, respectively.
The lock box 12 has a bottom 14 with side panels 16 as well as a cover 22 which is fastened to the bottom 14 by means of spacers 26 and screws 28. At its front end it is provided with the strike plate or cover strip 30 which preferably extends over the complete door height and is fastened to supporting elements 31 by means of screws 32. The supporting elements 31 are inserted at the rear end between the bottom 14 and the cover 22 of the lock box 12. Detents 34 on the supporting elements 31 guarantee non-rotating and secure attachment to the lock box 12 of the supporting elements 31 and to the cover strip 30, respectively. Anangular butt 38 on the bottom plate 14 provides additional support for the coverstrip 30.
The shiftable push rod 40 is located between the cover strip 30 and the supporting elements 31. At the height of the supporting elements 31 it is provided with elongated slots 42 and is supported by guiding cams 36. These are arranged at .. . . . . . .
CA 022~4164 1998-11-20 the front ends of the supporting elements 31 and pass through elongated slots 42of the push rod 40 for lateral guiding. The length of the elongated slots 42 and of the guiding cams 36 is dimensioned so that sufficient longitudinal displacement of the push rod 40 will always be achieved. Other guiding elements 43 arranged along the cover strip 30 and corresponding elongated slots 44 in the push rod 40warrant stable and reliable guiding of the push rod assembly over the complete door height.
As will be seen in Fig. 2, the push rod 40 is loaded in the direction of actuation by a compression spring 46 which bears against a lock box projection 48 and againsta shoulder 54 fastened to the push rod 40. The spring 46 ensures that the bolting elements connected with the push rod 40 will automatically engage into strike plates (not shown) on the door frame as the sliding door is closed. The lock-boxprojection 48 is provided on an insert 50 which is positively located between the bottom 14 and the cover 22 of the lock box 12. It is fixed in its position by means of detents 52. Round pins 56 on the push-rod shoulder 54 and on the lock-box projection 48 will hold the spring 46 fast and centered.
The driving mechanism 10 integrated into the lock box 12 has a spur-gear system 60 with a rotating element 75 in the form of a lock mortise 80 with attached driving gear 76, which receives the movement of the handle, as well as a conversion element 62 that converts the pivoting movement of the handle or knob into a linear movement of the push rod 40.
The conversion element 62 is driven gear of the gear system 60. It has a first, relatively coarse circumferential toothed segment 63 and another second, finer toothed segment 64 arranged at an offset angle relative to the first segment. The coarse toothed segment of the the driven gear 62 engages a gear lattice 58 provided in the push rod 40 whereas the second finer toothed segment 64 of the driven gear 62 meshes with a mating gear 66 positioned in the same plane. The toothed segment 67 of the latter gear has a larger radius than the second, finertoothed segment 64 of the driven gear 62.
Arranged on the same axle above this gear assembly 62, 66, there is a second pair of gears 72, 76 whose first gear 72 is placed above the mating gear 66. It has a circumferentially arranged toothed segment 73 which meshes with the second driving gear 76 placed above the driven gear 62 and with the toothed segment 77, CA 022~4164 1998-11-20 respectively. The latter gear has a larger radius than the gear 72 arranged above the mating gear 66. Additionally the gear 72 has at its bottom side a driving lug 74 which engages the circumferential recess 68 of the mating gear 66.
The lock mortise 80 of the rotating element 75 is axially pivoted below the driving gear 76 of the second pair of gears 72, 76 and the driven gear 62 of the first pair of gears 62, 66. The lock mortise has a central chimney or tube 82 with a square hole 83 for receiving a handle or knob bar and with a circumferential toothed segment 84 placed in a plane below the driven gear 62. The chimney or tube 82 passes through the driven gear 62 in a pivoted arrangement and the driving gear 76 in a non-rotating arrangement so that a rotating movement of the handle will be transmitted via the lock mortise 80 directly to the driving gear 76 but not to the driven gear 62. The toothed segment 84 of the lock mortise 80 positioned above the bottom 14 of the lock box 12 engages a spring-loaded rack 85 which also is flat on the bottom 14 of the lock box 12 and is shiftable within the lock box insert 50. Turning of the handle and thus of the lock mortise 80 will cause the rack 85 to be pulled out from the insert 50 while a spring 87 located in an elongated slot 86 of the rack 85 is tensioned. When the handle is released, the spring 87 will pull the rack 85 and thus the lock mortise 80 back into their initial positions.
The pivot bearings of the gear assembly 60 are integrated into the lock box structure. The driving gear 76 is provided on the cover side with a projection 78 which engages into a round recess 24 in the cover 22. The same applies to the lock mortise 80 which has on the bottom side a projection (not shown) engaging around recess 18 in the bottom 14. A circumferentially arranged rotation stop 20 by way of a circumferential recess and a projection (not shown) of the lock mortise 80 rotating therein limits its angle of traverse to e.g. 45~. The mating gear 66 and the lug gear 72 are provided with central round holes 70 and are attached to one of the spacers 26 designed as round bolts, which are arranged between the bottom 14 and the cover 22 of the lock box 12.
The driving gear 76, the lug gear 72 coupled with the mating gear 66 via the driving lug 74 and the driven gear 62 form an open drive chain driven by the lock mortise 80 and the driving gear 76 (and the rotating element 75, respectively) for transmitting the actuation of a handle to open the sliding door to the push rod 40.
In an extremely space-saving way, the drive chain is structured in two planes, the superposed transmission stages 62, 66 and 72, 76 being coupled with each other , CA 022~4164 1998-11-20 via the driving lug 74 of the lug gear 72 which engages the circumferential recess 68 of the mating gear 66. Because of the different radii of the toothed segments, each of the transmission stages 62, 66 and 72, 76 has a transmission ratio smaller than 1. Consequently the overall transmission ratio of the spur-gear system 60 is likewise smaller than 1 so that the driven gear will always rotate at a higher speed than the rotating element (lock mortise 80) mounted on the same axle and than the driving gear 76 non-rotatingly connected thereto. Compared to conventional gear arrangements, a distinctly increased push-rod stroke will be achieved with the same angle of traverse of the handle. At the same time the space requirements of the gear unit 60 and thus of the complete drive 10 are reduced to a minimum. The lock box 12 has extremely small dimensions and can be easily accommodated even in very narrow frame sections.
Figs. 3a to 3e elucidate the function of the connecting-rod drive 10. Fig. 3a shows its condition as the sliding door is closed. The bolting elements connected to the push rods 40 engage the corresponding engaging elements (strike plates) on the door frame; the push-rod spring 46 is relieved. The handle in the lock mortise 80 points vertically downward in the direction of the driving rod 40. By actuating of a lock cylinder 92 inserted in the lock box 12, the sliding door can be locked additionally. For this purpose, a corresponding dead bolt 93 will engage a bolt opening 94 provided in the push rod 40 thus locked; the door cannot be opened. Aspring-mounted rocker arm 95 prevents unauthorized pushing back of the bolt 93 from outside in a manner known per se.
If the dead bolt 93 is returned by actuation of the lock cylinder 92, the push rod 40 is released. As will be seen from Figs. 3b and 3c, the handle can be rotated in the lock mortise 80. Its rotation is transmitted via the chimney or square tube 82 directly to the driving gear 76 and from this gear via the lug gear 72 to the mating gear 66 positioned below. The latter actuates the driven gear 62 that rotates around the chimney or square tube 82 of the lock mortise 80, and the first toothed segment 63 of the driven gear 62 moves the push rod 40 downward in the direction of the arrow. The push-rod spring 46 is tensioned. While the lock mortise 80 is rotated, the return rack 85 is moved upward and the return spring 87 is pretensioned. Upon reaching the rotation stop 20 of the lock mortise 80, the push rod 40 attains its final position where the bolting elements of the door are disengaged. The door can be pushed open by continuation of the movement of the hand. When the handle is released, spring 87 and rack 85 will return the lock CA 022~4164 1998-11-20 _ 9 _ mortise 80 to its initial vertical position (Fig. 3d). In order that the push rod 40 and the coupled bolting elements may remain in their disengaged positions as the door is opened, the circumferential recess 68 of the mating gear is larger than the driving lug 74 of the lug gear 72. Consequently the driving lug will idle within the circumferential recess 68 while the handle is reset. Since the lock mortise 80, the driving gear 76 and the lug gear 72 are positively coupled, the return device 84, 95 would otherwise actuate the push rod 40 again; that, however, is not desired here.
In Fig. 3c (and additionally in Fig. 2) it will be seen that the toothed segments 62, 64, 67, 73, 77 of the gears 62, 66, 72, 76 are also designed and arranged in an extremely space-saving way. For example, the flank 65 of the first toothed segment 63 of the driven gear 62 will contact the flank 69 of the toothed segment 67 of the mating gear when the final position of the push rod 40 has been reached, and even in this position the toothed segment 67 still engages the second toothed segment 64 of the driven gear 62. The number of teeth of the upper toothed segments 73, 77 is limited to the absolut minimum necessary so that this gear plane, too, is extremely narrow. In spite of the relatively great diameter of the driven gear 62, the gear unit 60 requires very little space altogether. The lock box 12 may be of extremely narrow design. In order that the movement of the shoulder54 caused by the increased movement of the push rod 40 will not be impeded inside the lock box 12, the latter has a back curvature 55 adapted to the radii of gears 66, 72. Thus the already limited space of movement inside the lock box 12 is optimally utilized.
As the door is closed, the push rod 40 locked in its final position is automatically released by actuation of a release device (not shown) at the door frame. The push-rod spring 46 willl push the push rod 40 upward (Fig. 3e) while the drivinglug 74 of the lug gear 72 in the circumferential recess 68 of the mating gear 66changes its position and the connecting-rod drive 10 reaches the final or initial position as shown in Fig. 3a.
The invention is not limited to any of the embodiments described hereinbefore but can be modified in many ways. The mating gear 66 and the lug gear 72, for example, may be integral or be arranged non-rotatingly on a common axle. The drive for another, possibly oppositely directed push rod may be provided in a further gear plane. Because of its compact size, the connecting-rod drive 10 maybe installed in any kind of doors, windows, covers, hatches or the like; even with CA 022~4164 1998-11-20 smaller movements of the handle the gear unit will always warrant a sufficient actuation of the functional and closing elements, respectively.
It will be realized that in a drive 10 for actuation of functional elements 40, e.g. a push rod, in closable surface elements such as doors, windows, hatches or the like, a rotating element 75 mounted in a frame, support, lock box or the like, which comprises a lock mortise 80 for non-rotating mounting of an actuator and a driving gear 76, as well as at least one conversion element 62 designed as a separate gear element mounted in the frame, support, lock box 12 or the like, are parts of a preferably multi-stage gear unit 60 whose overall transmission ratio is smaller than 1. Gear element 62 engages a functional element 40 for converting a rotating and/or tilting movement of the rotating element 75 caused by an actuator into a functional movement of the functional element 40 via circumferentially arranged gear segments 63, 64, 67, 73, 77, 84. Such a gear unit is an open transmission chain and is preferably structured in two parallel planes, with the rotating element 75 that is associated to a first gear stage 72, 76 and the gear element 62 that is associated to a second gear stage 62, 66 as well as gears 72, 66 that are associated to the elements 75 and 62 being axially arranged one above the other.
All and any of the features and advantages of the invention, inclusive of designdetails and of spatial arrangements, as evident from the claims, from the specification and from the drawings may be inventionally substantial both per seand in most variegated combinations.
Locking of closable surface elements, such as windows, doors, hatches or the like, is achieved in numerous different ways by means of functional elements provided over the (partial) circumference of the surface element, e.g. Iatches, bolts, driving rods, push rods, pivot and tilt fittings or the like. In the field of building hardware, in particular for windows and/or doors, the functional elements comprise one or several longitudinally displaceable push rod(s) which is/are arranged on the faceplate side under a cover strip that is flush with the door or window and actuate(s) bolting elements, e.g. roller pins, pivoting bolts, hooks or round bolt latches engaging into corresponding recesses in the frame.
For driving the push rods, so-called connecting-rod drives are used which mostlyhave a rotating element pivoted in a lock box, e.g. a lock mortise through which a centered square bolt is axially passed for non-rotating mounting of a handle andwhose circumference is (at least partially) provided with an externally toothed gear rim. The latter engages into a gear lattice mounted in the push rod so that a rotating movement of the handle will be directly converted into a longitudinal movement of the push rod. The angle of traverse and the diameter of the lock mortise and of the driving gear, respectively, will determine the longitudinal stroke of the push rod.
... , . = .. ....
CA 022~4164 1998-11-20 Because of space or on-site conditions, e.g. in narrow frame sections or with sliding-door locks, the angle of traverse of the rotating element and of the lock mortise, respectively, and/or the diameter of the driving gear may be restricted so that the longitudinal stroke of the push rod is often insufficient for complete acutation of the bolting elements or for secure engagement into a strike plate.
An important objective of the invention is to avoid this, and other imperfections, by simple means. In particular, it is intended to convert a predetermined pivoting movement into a considerably increased longitudinal movement of the push rod.
Moreover, the longitudinal movement of the push rod shall be selectable even with small lock mortise dimensions, irrespective of the spindle dimension and of the angle of traverse.
Main features of fhe invention are specified in claims 1 and 19. Embodiments aredealt with in claims 2 to 18.
In a drive for the actuation of functional elements in closable surface elements, comprising a rotating element mounted in a frame, support, lock box or the like for non-rotating mounting of an actuator as well as at least one conversion element engaging a functional element and converting a rotating and/or pivoting movementof the rotating element caused by the actuator into a functional movement of thefunctional element, the invention provides according to claim 1 that the functional element is designed as a separate gear element mounted in the frame, support, lock box or the like and that the gear element and the rotating element form part of a gear unit whose overall transmission ratio is smaller than 1. In a surprisingly simple way it is thus achieved that the functional movement of the functional element is always greater than the movement of the rotating element, i.e., even the smallest rotating or pivoting movement of the rotating element acting as driving gear of the gear unit is converted into a relatively great movement of the functional element which, in turn, functions as driven gear. Because of the transmission ratio, the latter rotates faster than the driving gear actuated by the actuator. The angle through which the driven gear (functional gear) rotates is always greater than the angle through which the driving gear rotates.
The gear unit may be a single-stage unit, the gear element and the rotating element having, according to claim 2, peripheral teeth which positively engage CA 022~4164 1998-11-20 each other. This permits a simple and compact design of the gear unit which alto-gether requires only little space within a surface element. Manufacture and installation is simple, resulting in low total cost.
Advantageous is the embodiment according to claim 3, whereby the gear unit is multi-stage, preferably two-stage. This permits the optimum choice of a suitabletransmission ratio that may be varied at will and be individually adapted to most variegated functions. This is further supported by claim 4, according to which the transmission ratio of each stage is smaller than 1. Claim 5 provides that each transmission stage comprises at least two gears which may, according to claim 6,be structured in at least two parallel planes so that good and reliable power transmission will be achieved despite very small dimensions of the gear unit.
Claim 7 further proposes to associate the rotating element to a first transmission stage and the gear element to a second transmission stage whereby all gears are arranged in a narrowly confined space while warranting safe and reliable power transmission from the rotating element via the gear element and the conversion element, respectively, to the functional elements.
Particularly advantageous is the embodiment according to claim 8 whereby the rotating element and the gear element are arranged axially one above the other so that the space requirements of the gear unit are further reduced. Specifically, the driving and driven axles or shafts are arranged one above the other. Even with smallest installation dimensions and consequently restricted sizes of the rotating and conversion elements, a sufficiently great functional movement (e.g. movementof a push rod) for providing a secure locking effect of any bolting elements attached will always be obtained. Claim 9 provides that the rotating element andthe gear element have circumferentially arranged teeth which positively engage respective further gears, whereby an individual design of the transmission ratio is greatly facilitated.
Further saving of space is achieved through claim 10 which provides that associated gears are coupled to each other in a non-rotating way, e.g. by fixingthem on a common axle or by means of a driving lug engaging into a corresponding recess according to claim 11. It is advisable, according to claim 12, to provide this lug on the gear (lug gear) associated to the rotating element whereas a circumferential recess is provided on the gear (mating gear) associated to the gear element, the lug gear being preferably assigned to the first CA 022~4164 1998-11-20 transmission stage and the mating gear to the second transmission stage, whereby these gears will be incorporated into the complete structure without problem and without requiring extra space.
In certain applications it may be necessary that the rotating element and the conversion element move independently, e.g. where the conversion element is to be locked in a certain position together with the functional element, whereas the rotating element and the connected actuator are to be reset to their initial positions. For this purpose, claim 13 provides that the recess of the mating wheel has an idling aperture for the driving lug.
A further embodiment according to claim 14 is characterized in that the rotary movement of the rotating element is spring-loaded whereby the aforementioned resetting of the rotating element into an initial position can be easily effected, in particular if the rotating element has an additional external gear rim that engages a longitudinally displaceable spring-loaded rack. An advantageous space-saving arrangement of the rack is due to claim 15, according to which the additional external gear rim is assciated to an own plane parallel to the transmission planes.
Another important embodiment of the invention is defined in claim 16, according to which all toothings are designed as toothed segments. This will result in a further drastic reduction of the gear unit dimenions since the individual gears can be extremely narrow.
According to claim 17 the gear element is a spur gear that engages a push rod, and the functional element may, by claim 18, be a driving or push rod mounted for displacement along the frame, support, lock box or the like. A rotary and/or pivoting movement of the rotating element caused by the actuator will thus advantageously be converted into a longitudinal push rod movement which, owing to the transmission ratio, will be greater than the driving movement.
In a drive of the type mentioned initially, independent claim 19 provides that the rotating element and the functional element are components of an open drive chain designed so that a movement performed by the functional element will always be greater than the movement of the rotating element driving the drive chain. This structure ensures that actuation is easily and reliably effected even where there is extremely little space.
CA 022~4164 1998-11-20 Further features, details and advantages of the invention will be evident from the wording of the claims and from the following description of specific embodimentsby way of the drawings wherein:
Fig.1 is an explosion view of a connecting-rod drive, Fig. 2 is a side view of the connecting-rod drive of Fig.1, and~igs. 3a to 3e show different functional positions of the connecting-rod drive of Fig.1.
The drive 10 shown in Figs.1 and 2 as an example is located in a lock box 12 anddesigned for a sliding door (not shown). This door has as functional element a driving or push rod 40 with bolting elements (not shown) to bolt the door at another door wing or a door frame (not shown, either). The push rod 40 is located in a longitudinally displaceable way behind a strike plate or cover strip 30 which holds the lock box 12 with the drive 10 approximately in the middle of the door height.
Lock box 12 and strike plate 30 are inserted into the front end of the sliding-door wing, the strike plate 30 being flush with the door wing. Apart from the drive 10 for actuation of the push rod 40 by means of a handle or knob (not shown), the lock box 12 also accommodates a locking device 80 for bolting the push rod 40 and thesliding door, respectively.
The lock box 12 has a bottom 14 with side panels 16 as well as a cover 22 which is fastened to the bottom 14 by means of spacers 26 and screws 28. At its front end it is provided with the strike plate or cover strip 30 which preferably extends over the complete door height and is fastened to supporting elements 31 by means of screws 32. The supporting elements 31 are inserted at the rear end between the bottom 14 and the cover 22 of the lock box 12. Detents 34 on the supporting elements 31 guarantee non-rotating and secure attachment to the lock box 12 of the supporting elements 31 and to the cover strip 30, respectively. Anangular butt 38 on the bottom plate 14 provides additional support for the coverstrip 30.
The shiftable push rod 40 is located between the cover strip 30 and the supporting elements 31. At the height of the supporting elements 31 it is provided with elongated slots 42 and is supported by guiding cams 36. These are arranged at .. . . . . . .
CA 022~4164 1998-11-20 the front ends of the supporting elements 31 and pass through elongated slots 42of the push rod 40 for lateral guiding. The length of the elongated slots 42 and of the guiding cams 36 is dimensioned so that sufficient longitudinal displacement of the push rod 40 will always be achieved. Other guiding elements 43 arranged along the cover strip 30 and corresponding elongated slots 44 in the push rod 40warrant stable and reliable guiding of the push rod assembly over the complete door height.
As will be seen in Fig. 2, the push rod 40 is loaded in the direction of actuation by a compression spring 46 which bears against a lock box projection 48 and againsta shoulder 54 fastened to the push rod 40. The spring 46 ensures that the bolting elements connected with the push rod 40 will automatically engage into strike plates (not shown) on the door frame as the sliding door is closed. The lock-boxprojection 48 is provided on an insert 50 which is positively located between the bottom 14 and the cover 22 of the lock box 12. It is fixed in its position by means of detents 52. Round pins 56 on the push-rod shoulder 54 and on the lock-box projection 48 will hold the spring 46 fast and centered.
The driving mechanism 10 integrated into the lock box 12 has a spur-gear system 60 with a rotating element 75 in the form of a lock mortise 80 with attached driving gear 76, which receives the movement of the handle, as well as a conversion element 62 that converts the pivoting movement of the handle or knob into a linear movement of the push rod 40.
The conversion element 62 is driven gear of the gear system 60. It has a first, relatively coarse circumferential toothed segment 63 and another second, finer toothed segment 64 arranged at an offset angle relative to the first segment. The coarse toothed segment of the the driven gear 62 engages a gear lattice 58 provided in the push rod 40 whereas the second finer toothed segment 64 of the driven gear 62 meshes with a mating gear 66 positioned in the same plane. The toothed segment 67 of the latter gear has a larger radius than the second, finertoothed segment 64 of the driven gear 62.
Arranged on the same axle above this gear assembly 62, 66, there is a second pair of gears 72, 76 whose first gear 72 is placed above the mating gear 66. It has a circumferentially arranged toothed segment 73 which meshes with the second driving gear 76 placed above the driven gear 62 and with the toothed segment 77, CA 022~4164 1998-11-20 respectively. The latter gear has a larger radius than the gear 72 arranged above the mating gear 66. Additionally the gear 72 has at its bottom side a driving lug 74 which engages the circumferential recess 68 of the mating gear 66.
The lock mortise 80 of the rotating element 75 is axially pivoted below the driving gear 76 of the second pair of gears 72, 76 and the driven gear 62 of the first pair of gears 62, 66. The lock mortise has a central chimney or tube 82 with a square hole 83 for receiving a handle or knob bar and with a circumferential toothed segment 84 placed in a plane below the driven gear 62. The chimney or tube 82 passes through the driven gear 62 in a pivoted arrangement and the driving gear 76 in a non-rotating arrangement so that a rotating movement of the handle will be transmitted via the lock mortise 80 directly to the driving gear 76 but not to the driven gear 62. The toothed segment 84 of the lock mortise 80 positioned above the bottom 14 of the lock box 12 engages a spring-loaded rack 85 which also is flat on the bottom 14 of the lock box 12 and is shiftable within the lock box insert 50. Turning of the handle and thus of the lock mortise 80 will cause the rack 85 to be pulled out from the insert 50 while a spring 87 located in an elongated slot 86 of the rack 85 is tensioned. When the handle is released, the spring 87 will pull the rack 85 and thus the lock mortise 80 back into their initial positions.
The pivot bearings of the gear assembly 60 are integrated into the lock box structure. The driving gear 76 is provided on the cover side with a projection 78 which engages into a round recess 24 in the cover 22. The same applies to the lock mortise 80 which has on the bottom side a projection (not shown) engaging around recess 18 in the bottom 14. A circumferentially arranged rotation stop 20 by way of a circumferential recess and a projection (not shown) of the lock mortise 80 rotating therein limits its angle of traverse to e.g. 45~. The mating gear 66 and the lug gear 72 are provided with central round holes 70 and are attached to one of the spacers 26 designed as round bolts, which are arranged between the bottom 14 and the cover 22 of the lock box 12.
The driving gear 76, the lug gear 72 coupled with the mating gear 66 via the driving lug 74 and the driven gear 62 form an open drive chain driven by the lock mortise 80 and the driving gear 76 (and the rotating element 75, respectively) for transmitting the actuation of a handle to open the sliding door to the push rod 40.
In an extremely space-saving way, the drive chain is structured in two planes, the superposed transmission stages 62, 66 and 72, 76 being coupled with each other , CA 022~4164 1998-11-20 via the driving lug 74 of the lug gear 72 which engages the circumferential recess 68 of the mating gear 66. Because of the different radii of the toothed segments, each of the transmission stages 62, 66 and 72, 76 has a transmission ratio smaller than 1. Consequently the overall transmission ratio of the spur-gear system 60 is likewise smaller than 1 so that the driven gear will always rotate at a higher speed than the rotating element (lock mortise 80) mounted on the same axle and than the driving gear 76 non-rotatingly connected thereto. Compared to conventional gear arrangements, a distinctly increased push-rod stroke will be achieved with the same angle of traverse of the handle. At the same time the space requirements of the gear unit 60 and thus of the complete drive 10 are reduced to a minimum. The lock box 12 has extremely small dimensions and can be easily accommodated even in very narrow frame sections.
Figs. 3a to 3e elucidate the function of the connecting-rod drive 10. Fig. 3a shows its condition as the sliding door is closed. The bolting elements connected to the push rods 40 engage the corresponding engaging elements (strike plates) on the door frame; the push-rod spring 46 is relieved. The handle in the lock mortise 80 points vertically downward in the direction of the driving rod 40. By actuating of a lock cylinder 92 inserted in the lock box 12, the sliding door can be locked additionally. For this purpose, a corresponding dead bolt 93 will engage a bolt opening 94 provided in the push rod 40 thus locked; the door cannot be opened. Aspring-mounted rocker arm 95 prevents unauthorized pushing back of the bolt 93 from outside in a manner known per se.
If the dead bolt 93 is returned by actuation of the lock cylinder 92, the push rod 40 is released. As will be seen from Figs. 3b and 3c, the handle can be rotated in the lock mortise 80. Its rotation is transmitted via the chimney or square tube 82 directly to the driving gear 76 and from this gear via the lug gear 72 to the mating gear 66 positioned below. The latter actuates the driven gear 62 that rotates around the chimney or square tube 82 of the lock mortise 80, and the first toothed segment 63 of the driven gear 62 moves the push rod 40 downward in the direction of the arrow. The push-rod spring 46 is tensioned. While the lock mortise 80 is rotated, the return rack 85 is moved upward and the return spring 87 is pretensioned. Upon reaching the rotation stop 20 of the lock mortise 80, the push rod 40 attains its final position where the bolting elements of the door are disengaged. The door can be pushed open by continuation of the movement of the hand. When the handle is released, spring 87 and rack 85 will return the lock CA 022~4164 1998-11-20 _ 9 _ mortise 80 to its initial vertical position (Fig. 3d). In order that the push rod 40 and the coupled bolting elements may remain in their disengaged positions as the door is opened, the circumferential recess 68 of the mating gear is larger than the driving lug 74 of the lug gear 72. Consequently the driving lug will idle within the circumferential recess 68 while the handle is reset. Since the lock mortise 80, the driving gear 76 and the lug gear 72 are positively coupled, the return device 84, 95 would otherwise actuate the push rod 40 again; that, however, is not desired here.
In Fig. 3c (and additionally in Fig. 2) it will be seen that the toothed segments 62, 64, 67, 73, 77 of the gears 62, 66, 72, 76 are also designed and arranged in an extremely space-saving way. For example, the flank 65 of the first toothed segment 63 of the driven gear 62 will contact the flank 69 of the toothed segment 67 of the mating gear when the final position of the push rod 40 has been reached, and even in this position the toothed segment 67 still engages the second toothed segment 64 of the driven gear 62. The number of teeth of the upper toothed segments 73, 77 is limited to the absolut minimum necessary so that this gear plane, too, is extremely narrow. In spite of the relatively great diameter of the driven gear 62, the gear unit 60 requires very little space altogether. The lock box 12 may be of extremely narrow design. In order that the movement of the shoulder54 caused by the increased movement of the push rod 40 will not be impeded inside the lock box 12, the latter has a back curvature 55 adapted to the radii of gears 66, 72. Thus the already limited space of movement inside the lock box 12 is optimally utilized.
As the door is closed, the push rod 40 locked in its final position is automatically released by actuation of a release device (not shown) at the door frame. The push-rod spring 46 willl push the push rod 40 upward (Fig. 3e) while the drivinglug 74 of the lug gear 72 in the circumferential recess 68 of the mating gear 66changes its position and the connecting-rod drive 10 reaches the final or initial position as shown in Fig. 3a.
The invention is not limited to any of the embodiments described hereinbefore but can be modified in many ways. The mating gear 66 and the lug gear 72, for example, may be integral or be arranged non-rotatingly on a common axle. The drive for another, possibly oppositely directed push rod may be provided in a further gear plane. Because of its compact size, the connecting-rod drive 10 maybe installed in any kind of doors, windows, covers, hatches or the like; even with CA 022~4164 1998-11-20 smaller movements of the handle the gear unit will always warrant a sufficient actuation of the functional and closing elements, respectively.
It will be realized that in a drive 10 for actuation of functional elements 40, e.g. a push rod, in closable surface elements such as doors, windows, hatches or the like, a rotating element 75 mounted in a frame, support, lock box or the like, which comprises a lock mortise 80 for non-rotating mounting of an actuator and a driving gear 76, as well as at least one conversion element 62 designed as a separate gear element mounted in the frame, support, lock box 12 or the like, are parts of a preferably multi-stage gear unit 60 whose overall transmission ratio is smaller than 1. Gear element 62 engages a functional element 40 for converting a rotating and/or tilting movement of the rotating element 75 caused by an actuator into a functional movement of the functional element 40 via circumferentially arranged gear segments 63, 64, 67, 73, 77, 84. Such a gear unit is an open transmission chain and is preferably structured in two parallel planes, with the rotating element 75 that is associated to a first gear stage 72, 76 and the gear element 62 that is associated to a second gear stage 62, 66 as well as gears 72, 66 that are associated to the elements 75 and 62 being axially arranged one above the other.
All and any of the features and advantages of the invention, inclusive of designdetails and of spatial arrangements, as evident from the claims, from the specification and from the drawings may be inventionally substantial both per seand in most variegated combinations.
Claims (19)
1. Drive (10) for actuation of functional elements (40) in closable surface elements, comprising a rotating element (75) pivoted in a frame, support, lock box or the like for non-rotating mounting on an actuator as well as at least one conversion element (62) engaging into a functional element (40) and converting a rotating and/or pivoting movement of the rotating element (75) caused by the actuator into a functional movement of the functional element (40), w h e r e i n the conversion element (62) is designed as a separate gear element mounted in the frame, support lock box or the like and the gear element (62) and the rotating element (75) form part of a gear unit (60) whose ovrall transmission ratio is smaller than 1.
2. Drive according to claim 1, wherein the gear element (62) and the rotating element (75) have circumferentially arranged gear toothings (63, 64, 77) that positively engage into each other.
3. Drive according to claim 1, wherein the gear unit (60) comprises at least two transmission stages.
4. Drive according to claim 3, wherein the transmission ratio of each transmission stage is smaller than 1.
5. Drive according to claim 3, wherein each transmission stage comprises at least two gears.
6. Drive according to claim 3, wherein the gear unit (60) is structured in at least two parallel planes.
7. Drive according to claim 1, wherein the rotating element (75) is assigned to a first transmission stage (72, 76) and the gear element (62) to a second transmission stage (62, 66).
8. Drive according to claim 1, wherein the rotating element (75) and the gear element (62) or gears (72, 66) associated to these elements (75, 62) are arranged axially one above the other.
9. Drive according to claim 1, wherein the rotating element (75) and the gear element (62) have circumferentially arranged gear toothings (77, 63, 64) which positively engage further gears (72, 66.)
10. Drive according to claim 1, wherein associated gears (72, 66) are non-rotatingly coupled to each other by attachment to a common axle.
11. Drive according to claim 1, wherein associated gears (72, 66) are non-rotatingly coupled to each other by means of a drive lug (74) engaging into a circumferential recess (68) of a mating gear (66).
12. Drive according to claim 11, wherein the lug gear (72) having a driving lug (74) is associated to the first transmission stage (72, 76) and the mating gear (66) is associated to the second transmission stage (62, 66).
13. Drive according to claim 10, wherein the recess (68) has an idling aperture for the driving lug (74).
14. Drive according to claim 1, wherein the rotary movement of the rotating element (75) is spring-loaded, having an additional external gear rim (84) that engages into a longitudinally displaceable spring-loaded rack (85).
15. Drive according to claim 14, wherein the additional external gear rim (84) is associated to a plane parallel to the transmission planes (76, 72; 62, 66, respectively).
16. Drive according to claim 2, wherein all toothings (63, 64, 67, 73, 77, 84) are designed as toothed segments.
17. Drive according to claim 1, wherein the gear element (62) is a spur gear (63) that engages a push rod.
18. Drive according to claim 1, wherein the functional element (40) is a driving or push rod mounted in a longitudinally displaceable way on the frame, support, lock box (12) or the like.
19. Drive for actuation of functional elements (40) in building elements, such as windows, doors or the like, e.g. latches, bolts, driving rods, push rods, pivot and tilt fittings or the like, comprising a rotating element (75) pivoted in a frame, support, lock box or the like for non-rotating mounting on an actuator as well as at least one conversion element (62) engaging into a functional element (40) and converting a rotating and/or pivoting movement of the rotating element (75) caused by the actuator into a functional movement of the functional element (40), wherein the rotating element (75) and the functional element (40) are components of an open drive chain (75, 80, 76, 72, 66, 62, 58, 40) designed so that a movement performed by the functional element (40) is always greater than the movement of the rotating element (75) driving the drive chain.
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29722665.7 | 1997-12-22 | ||
| DE29722665U DE29722665U1 (en) | 1997-12-22 | 1997-12-22 | Drive for the actuation of functional elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2254164A1 true CA2254164A1 (en) | 1999-06-22 |
Family
ID=8050357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2254164 Abandoned CA2254164A1 (en) | 1997-12-22 | 1998-11-20 | Drive for actuation of functional elements |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11247515A (en) |
| CN (1) | CN1221065A (en) |
| CA (1) | CA2254164A1 (en) |
| DE (1) | DE29722665U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946080B2 (en) | 2007-01-29 | 2011-05-24 | Newell Operating Company | Lock assembly |
| US11572706B2 (en) | 2020-07-01 | 2023-02-07 | Cmech (Guangzhou) Ltd. | Handle-locking mechanism and door lock using such mechanism |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT408013B (en) * | 1999-10-07 | 2001-08-27 | Roto Frank Eisenwaren | PUSH-OPERABLE MULTI-LOCK LOCK |
| DE10316325A1 (en) * | 2003-04-10 | 2004-10-21 | Aug. Winkhaus Gmbh & Co. Kg | Locking device for door of garage, has bar drifting lock with gear for propulsion of drifting bar over tiltable nut, the toothed rod of gear fitted into toothed rack of slide valve such that the drifting bar creates a large shift range |
| CN100356025C (en) * | 2006-01-20 | 2007-12-19 | 萧树庄 | Window lock |
| DE202010004686U1 (en) * | 2010-04-08 | 2011-09-02 | MACO Vermögensverwaltung GmbH | Fitting for windows, doors or the like. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505379C2 (en) * | 1985-02-16 | 1996-03-21 | Fliether Karl Gmbh & Co | Espagnolette lock |
| DE9112547U1 (en) * | 1991-10-09 | 1993-02-04 | Carl Fuhr Gmbh & Co, 5628 Heiligenhaus | Espagnolette lock |
| DE4405816C2 (en) * | 1993-07-06 | 2002-11-21 | Fuhr Carl Gmbh & Co | Rod lock |
| DE29608413U1 (en) * | 1996-05-09 | 1996-08-01 | Siegenia-Frank Kg, 57074 Siegen | Actuating gear for a connecting rod fitting |
-
1997
- 1997-12-22 DE DE29722665U patent/DE29722665U1/en not_active Expired - Lifetime
-
1998
- 1998-11-20 CA CA 2254164 patent/CA2254164A1/en not_active Abandoned
- 1998-12-22 CN CN 98126230 patent/CN1221065A/en active Pending
- 1998-12-22 JP JP36552398A patent/JPH11247515A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946080B2 (en) | 2007-01-29 | 2011-05-24 | Newell Operating Company | Lock assembly |
| US11572706B2 (en) | 2020-07-01 | 2023-02-07 | Cmech (Guangzhou) Ltd. | Handle-locking mechanism and door lock using such mechanism |
| US11661763B2 (en) | 2020-07-01 | 2023-05-30 | Cmech (Guangzhou) Ltd. | Anti-unlatched mechanism and a door lock thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1221065A (en) | 1999-06-30 |
| DE29722665U1 (en) | 1998-03-05 |
| JPH11247515A (en) | 1999-09-14 |
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Legal Events
| Date | Code | Title | Description |
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| FZDE | Dead |