ELECTRONIC LOCK WITH ADJUSTABLE DEAD LATCH CHANNEL LOCATION

Abstract

An electronic lock with adjustable dead latch channel location, comprising: an electronic lock body, having a housing cavity and a latch bolt; a plate, further having a gap for exposing the housing cavity and the latch bolt; a fixed adjust element, the middle section of the fixed adjust element is arranged below the gap, and set a fixed channel; and an active adjust element, having a ramp element relative to the latch bolt, the ramp element having an active channel relative to the positioning channel, and the width of the active channel is narrower than the distance between the pair of the fixing blocks, so the present invention can directly adjust the position of the dead latch channel without disassembling the entire electronic lock from the door frame.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to an electronic lock with adjustable dead latch channel location, especially the one that can adjust dead latch channel location directly at the plate of the electronic lock.

2. Description of the Related Art

The electronic lock is used as the access control system. The difference from the genera lock is that the electronic lock cannot be used alone and must be operated with a mechanical lock box (such as a deadbolt lock, etc.). Install the electronic lock on the door frame and electronically control the lock, so that the mechanical lock box can be directly pushed or pulled open without being used; therefore, the access control system uses the electronic lock, which can be accessed electronically or directly with the key to open the mechanical lock box to achieve the convenience of electric control and manual use.

U.S. Pat. No. 8,157,302B1 discloses an electronic lock. The longitudinal length of the housing cavity is usually much larger than that of the latch bolt for making the housing cavity easy to align the latch bolt of the mechanical lock box while installing the electronic lock on the door frame, and the latch bolt of the mechanical lock box is also equipped with a dead latch, so the design of the electronic lock must also consider whether the dead latch can be ejected smoothly when the door is opened. This patent let the ramp element that guide the latch bolt exits the electronic lock has a channel, and the channel on the ramp element is adjusted to align with the dead latch, and then the screw is used to position the ramp element; however, this patent must disassemble the entire electronic lock from the door frame and the locking screw of the electric lock body must be loosened in order to adjust the position of the dead latch channel, which is very inconvenient. Loosening the locking screw of the electric lock body is risky, the electronic lock may malfunction due to human error during the process.

U.S. Pat. No. 8,146,966B1 discloses an electronic lock. The ramp element (20E) has a recess (80) with a projection or lug (82). A series of lugs or teeth (85) on the sidewall (18) of housing (10) define spaces (88) therebetween which are selectively engageable with lug (82). Once the desired position is achieved, the ramp element (20E) is fixed in place by fasteners (86). The ramp element (20E) can be readjusted if necessary by removing the faceplate (19) to access the fasteners. Once the adjustment is made, the faceplate is reattached to the strike housing (10). The adjustment feature, such as set screws (86), are concealed by the faceplate plate and not readily accessible.

Since the ramp element (20) of U.S. Pat. No. 8,157,302B1 and the ramp element (20E) of the U.S. Pat. No. 8,146,966B1 are both arranged in the strike housing (10), and hid by the faceplate (19), therefore after the electronic lock is installed on the door frame, while doing the position adjustment of the ramp element (20/20E), the entire electronic lock has to be removed from the door frame and then remove the faceplate (19) so as to do the adjustment of the ramp element (20/20E), it is inconvenient in the whole process, and the other unit in the strike housing (10) may be touch by mistake and damaged during the process.

SUMMARY OF THE INVENTION

It is a primary objective of the present invention to solve the problem that the electric lock must be uninstalled from the door frame and the screw must be loosen in order to adjust the position of the dead latch channel, and having the effect that doesn't need to uninstall the electric lock and the screw, and can adjust the dead latch channel location directly at the plate of the electronic lock.

In order to achieve the above objectives, in the first embodiment, the present invention comprise: an electronic lock body, having a housing cavity and a latch bolt; a plate, using a plate screw combined to the electronic lock body, and beside covering the electronic lock body, the plate extended upward and downward to the opening side of the plate, further having a gap for exposing the housing cavity and the latch bolt; a fixed adjust element, two ends of the fixed adjust element are combined to the bottom surface of the plate by an adjusting screw, the middle section of the fixed adjust element is arranged below the gap, and set a fixed channel; and an active adjust element, sleeved on the middle section of the fixed adjust element and corresponding to the latch bolt set a ramp element, arranged between the bottom surface of the plate and the middle section of the fixed adjust element, the ramp element having an active channel relative to the positioning channel, and the width of the active channel is narrower than the width of the fixed channel.

A second embodiment of the present invention, including: an electronic lock body, having a housing cavity and a latch bolt; a plate, using a plate screw combined to the electronic lock body, and beside covering the electronic lock body, the plate extended upward and downward to the opening side of the plate, further having a gap for exposing the housing cavity and the latch bolt; a fixed adjust element, using an adjusting screw to combine a pair of fixing blocks to the bottom of the plate, the fixing blocks has a sliding slot; and an active adjust element, having a sliding element on two ends which set to the sliding slot, making the top surface of two ends of the active adjust element higher than the top surface of the fixing blocks, and let the active adjust element arranged between a bottom surface of the plate and the fixing blocks, the middle section of the active adjust element set a ramp element relative to the latch bolt, the ramp element having an active channel, and the width of the active channel is narrower than the distance between the pair of the fixing blocks.

Whereby after installing the plate on the door frame so that the housing cavity is aligned with the latch bolt of the mechanical lock box, if the active channel is not aligned with the dead latch of the mechanical lock box, then loosen the adjusting screw to let the active adjust element and the relative fixed adjust element shifted, then let the active channel of the active adjust element be aligned with the dead latch of the mechanical lock box, and then tighten the adjust screw to make the active adjust element and the fixed adjustment element return to occlusion state.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view of the first embodiment of the present invention;

FIG. 2 is a perspective view of the first embodiment of the present invention;

FIG. 3 is a perspective bottom view of the first embodiment of the present invention;

FIG. 4 is a top view of the first embodiment of the present invention;

FIG. 5 is a right view of the first embodiment of the present invention;

FIG. 6 is a front view of the first embodiment of the present invention;

FIG. 7 is a perspective view showing the fixed adjust element and the active adjust element combined to the plate of the first embodiment of the present invention;

FIG. 8A is a schematic diagram showing the adjustment of the active channel of the first embodiment of the present invention;

FIG. 8B is a schematic diagram showing the adjustment of the active channel of the first embodiment of the present invention;

FIG. 9 is a schematic diagram the adjustment of the active channel which is installed on the door frame of the first embodiment of the present invention;

FIG. 10A is an exploded perspective view showing the fixed adjust element and the active adjust element of the second embodiment of the present invention;

FIG. 10B is an assembly perspective view showing the fixed adjust element and the active adjust element of the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1-6, a first embodiment of the present invention, including: an electronic lock body 10, having a housing cavity 11 and a latch bolt 12; a plate 20, using plate screws 13 to combine to the electronic lock body 10, and beside covering the electronic lock body 10, the plate extended upward and downward to the opening side of the plate 20, further having a gap 21 for exposing the housing cavity 11 and the latch bolt 12; a fixed adjust element 30A, two ends of the fixed adjust element 30 are using adjust screw 22 to combined to the bottom surface of the plate 20, the middle section of the fixed adjust element 30 is arranged at a rod 31 which arranged below the gap 21, and set a fixed channel 32; and an active adjust element 40A, having a sleeve slot 41 relative to the rod 31, and having a ramp element 42 corresponds to the latch bolt 12, the active adjust element 40A sleeved to between the bottom surface of the plate 20 and the rod 31; the ramp element 42A having an active channel 43 relative to the positioning channel 32, the width of the active channel 43 is narrower than the width of the fixed channel 32.

With the feature disclosed above, referring to the FIGS. 7-9, after installing the plate 20 on a door frame 50 so that the housing cavity 11 is aligned with the latch bolt of the mechanical lock box, if the active channel 43 is not aligned with the dead latch of the mechanical lock box, then loosen the adjusting screw 22 (the adjusting screw 22 is not removed) to let the active adjust element 40A and the relative fixed adjust element 30A shifted, let the active channel 43 of the active adjust element 40A be aligned with the dead latch of the mechanical lock box, and then tighten the adjust screw 22 to make the active adjust element 40A and the fixed adjustment element 30A return to occlusion state, so the procedure for adjusting the position of the active channel 43 is completed; Therefore, since the occlusal state of the active adjust element 40A and the fixed adjustment element 30A formed by tighten the adjust screw 22, the active channel 43 located in the active adjust element 40A will not have the problem of offset, and the active adjust element 40A and the fixed adjustment element 30A are arranged at the outer side of the electronic lock body 10, so the position of the active channel 43 can be directly adjusted by loosening the adjust screw 22 from the plate 20, therefore, the present invention does not need to disassemble the entire electronic lock from the door frame, and can directly adjust the position of the dead latch channel from the electronic lock plate under the condition that the main structure of the electronic lock is not removed at all to avoid the malfunction of the electronic lock.

Moreover, referring to FIGS. 10A and 10B, a second embodiment of the present invention has a fixed adjust element 30B and an active adjust element 40B in second type, the fixed adjust element 30B are combined to a pair of the fixing blocks 33 the bottom surface of the plate 20 by an adjusting screw 22, the fixing blocks 33 has a sliding slot 331; the sliding element 40B has a sliding member 44 at the two ends set to the sliding slot 331, making the top surface of two ends of the active adjust element 40B higher than the top surface of the fixing blocks 33, let the active adjust element 40B be arranged between a bottom surface of the plate 20 and the fixing blocks 33, the middle section of the active adjust element 40B set a ramp element 42B relative to the latch bolt 12, the ramp element 42B having an active channel 43, and the width of the active channel 43 is narrower than the distance between the pair of the fixing blocks 33.

Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims

1. An electronic lock with adjustable dead latch channel location, comprising: an electronic lock body, having a housing cavity and a latch bolt;a plate, using a plate screw combined to the electronic lock body, and beside covering the electronic lock body, the plate extended upward and downward to the opening side of the plate, further having a gap for exposing the housing cavity and the latch bolt;a fixed adjust element, two ends of the fixed adjust element are combined to the bottom surface of the plate by an adjusting screw, the middle section of the fixed adjust element is arranged below the gap, and set a fixed channel; andan active adjust element, sleeved on the middle section of the fixed adjust element and corresponding to the latch bolt set a ramp element, arranged between the bottom surface of the plate and the middle section of the fixed adjust element, the ramp element having an active channel relative to the positioning channel, and the width of the active channel is narrower than the width of the fixed channel.

2. An electronic lock with adjustable dead latch channel location, comprising: an electronic lock body, having a housing cavity and a latch bolt;a plate, using a plate screw combined to the electronic lock body, and beside covering the electronic lock body, the plate extended upward and downward to the opening side of the plate, further having a gap for exposing the housing cavity and the latch bolt;a fixed adjust element, using an adjusting screw to combine a pair of fixing blocks to the bottom of the plate, the fixing blocks has a sliding slot; andan active adjust element, having a sliding element on two ends which set to the sliding slot, making the top surface of two ends of the active adjust element higher than the top surface of the fixing blocks, and let the active adjust element be arranged between a bottom surface of the plate and the fixing blocks, the middle section of the active adjust element set a ramp element relative to the latch bolt, the ramp element having an active channel, and the width of the active channel is narrower than the distance between the pair of the fixing blocks.