Patent Application
20200308880
The present invention relates to a paddle lock, and more particularly to a paddle lock that has a simplified structure.
A paddle lock is usually mounted on a door panel of a station wagon. A conventional paddle lock substantially comprises a body, a lever, a latch, a locking bolt, a bolt driving device, a latch lock, and a bolt lock. The lever is pivotally mounted on the body. The latch is mounted retractably in the body and is connected with the lever. The locking bolt is mounted slidably in the body. The bolt driving device is mounted in the body and is connected with the locking bolt to retract the locking bolt into the body. The latch lock is mounted on the body and is connected to the lever to lock the lever. The bolt lock is mounted on the body and is connected with the bolt driving device to lock the bolt locking device.
When the lever is pivoted, the latch can be retracted into the body. Thus, the paddle lock can be unlocked. In addition, when the locking bolt is driven to extend out of the body by the bolt driving device, the paddle lock can be locked to keep the door panel from being opened.
When the latch lock is in a locked position, the lever is kept from being pivoted. Thus, the latch can be kept from being retracted into the body and the paddle lock is kept in the locked position. When the bolt lock is locked, the bolt driving device is locked and the locking bolt is kept from being retracted into the body. Accordingly, the paddle lock is kept in the locked position.
However, to lock the latch and the locking bolt of the conventional paddle lock, a latch lock and a bolt lock are necessary and have to be mounted on the body at the same time. Therefore, the structure of the conventional paddle lock is complicated, and the cost for manufacturing the conventional paddle lock is high.
To overcome the shortcomings, the present invention tends to provide a paddle lock to mitigate or obviate the aforementioned problems.
The main objective of the invention is to provide a paddle lock that has a simplified structure and has a single lock to lock a latch and a locking bolt at the same time.
The paddle lock has a body, a lever, a latch, a locking bolt, a bolt driving device, and a lock device. The lever is pivotally mounted on the body and has a pushing arm formed on and protruding from a bottom of the lever. The latch is mounted retractably in the body and has a pushed protrusion formed on and protruding from the latch and selectively abutting against and pushed by the pushing arm of the lever. The locking bolt is mounted slidably in the body and has an abutting arm. The abutting arm is formed on and protrudes from the locking bolt and extends toward the pushing arm of the lever to selectively abut the pushing arm of the lever. The bolt driving device is mounted in the body and is connected with the locking bolt to push the locking bolt to extend out of the body or to retract the locking bolt into the body. The lock device is mounted on the body and is connected with the bolt driving device.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The latch 14 is mounted retractably in the body 10 and has a pushed protrusion 142 formed on and protruding from the latch 14 and selectively abutting against and pushed by the pushing arm 122 of the lever 12.
The locking bolt 20 is mounted slidably in the body 10 and has an abutting arm 22 formed on and protruding from the locking bolt 20 and extending toward the pushing arm 122 of the lever 12 to selectively abut the pushing arm 122 of the lever 12.
The bolt driving device 30 is mounted in the body 10 and is connected to the locking bolt 20 to push the locking bolt 20 to extend out of the body 10 or retract the locking bolt 20 into the body 10. The bolt driving device 30 may be electric and is electrically connected with a circuit board 102 that is mounted in the body 10. The bolt driving device 30 comprises a motor 32, a worm rod 34, a worm wheel 36, and a connection rod 38. The motor 32 is mounted in the body 10. The worm rod 34 is connected with and driven by the motor 32. The worm wheel 36 is mounted rotatably in the body 10 and is engaged with the worm rod 34. The connection rod 38 is connected between the worm wheel 36 and the bolt rod 22 of the locking bolt 20. Accordingly, when the motor 32 is switched on, the worm wheel 36 is driven to rotate by the transmission of the worm rod 34. When the worm wheel 36 is rotating, the locking bolt 20 is driven to slide to move relative to the body 10 by the transmission of the connection rod 38.
The lock device 40, 50 is mounted on the body to lock the bolt driving device 30. In practice, the lock device 40 is a key lock cylinder that is connected with the worm wheel 36. When a correct key is inserted into the key lock cylinder, the worm wheel 36 can be rotated to retract the locking bolt 30 into the body 10 and to unlock the paddle lock. Alternatively, the lock device 50 is an electric lock device, such as an electric code lock or a fingerprint lock, is mounted on the body, and is electrically connected with the circuit board 102. When the electric lock device 50 is unlocked by a correct code or an authorized fingerprint, an electrical signal can be transmitted to the circuit board to drive the motor 32 to rotate. Consequently, the locking bolt 20 can be retracted into the body 10 to unlock the locking bolt 20.
With reference to
To unlock the paddle lock, with further reference to
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
