TH45928A - Locking structure for manual transmission - Google Patents

Abstract

DC60 (26/12/43) The key aspect of this invention is a gear locking system for manual transmission cars. Specifically, it focuses on the locking structure, where the gear lever can move up and down in relation to the adjacent gear lever's up and down movement. The gear lever can be locked in a desired position. Furthermore, there is a device to control the gear lever's movement, providing a deterrent against car theft. This invention presents its design and structural details, with explanations and illustrative images for better understanding. The main focus of this invention is a gear locking system for manual transmission cars, specifically emphasizing the locking structure. The gear lever can move up and down in relation to the adjacent gear lever's up and down movement. The gear lever can be locked in a desired position. Additionally, there is a device to control the gear lever's movement, providing a deterrent against car theft. The invention presents its design and structural details, with explanations and illustrative images for better understanding. The best invention method involves a locking system structure for manual transmissions where the gear lever can move up and down along the gear lever axis. A lock is attached to the gear shift knob to secure it to the gear shift shaft. Additionally, a device to control the movement of the gear shift knob and shaft can be added for an extra layer of protection against car theft. The details of this optimal invention are described in the full invention disclosure section.

Claims (7)

1. The locking system structure for a manual transmission has the following characteristics: The gear lever head consists of an outer sleeve mounted at the upper end of the gear lever shaft, which can slide up and down along the shaft. At the base of the gear lever shaft is a movement restrictor. When the gear lever head is pressed down, it slides into this restrictor, preventing gear changes. A locking key is installed on the gear lever head to lock the gear lever head and shaft into the movement restrictor. 2. The locking system structure for manual transmissions, as described in point 1, has the following characteristics: The structure consists of the gear lever shaft, control sleeve, inner sleeve, lock key, first spring, second spring, positioning bearing, and outer sleeve. Its operation is as follows: The gear lever shaft is concave, forming a bottleneck, and has a single hole for a pin. The control sleeve slides along the gear lever shaft and is grooved in an L-shape to control the direction of movement in conjunction with the pin. A hole is drilled in the inner sleeve, and a protruding pin is attached to the top end. Beneath the lock key is the locking shaft, which acts in conjunction with the pin on the inner sleeve. The first spring is fitted between the gear lever shaft and the control sleeve to withstand both compressive and torsional forces. The second spring, with less spring tension than the first, is fitted between the inner sleeve and the lock key to withstand the torsional forces between the inner sleeve and the lock key. The positioning bearing is installed in a hole on the inner sleeve, and its size is slightly larger than the thickness of the inner sleeve. When the ball bearing engages the hole, it must always protrude beyond the inner or outer surface of the inner sleeve. The outer sleeve can slide up and down along the gear shift shaft. The outer sleeve, retaining sleeve, inner sleeve, and key body, which are enclosed by the gear head, work in conjunction with the key body. The outer sleeve has grooves to receive the ball bearing. When the outer sleeve is twisted and pressed down until the ball bearing enters the groove, the inner sleeve is twisted by the force of the second spring, causing the ball bearing to move into the bottleneck groove and rest against the inner wall of the outer sleeve. This locks the outer sleeve, retaining sleeve, inner sleeve, and key body to the gear shift shaft. When the key is turned, the ball bearing rotates along the bottleneck groove until it stops at the ball bearing receiving groove. Due to the torque and thrust of the first spring, the ball bearing moves out of the bottleneck groove and stops at the ball bearing receiving groove. Therefore, the outer sleeve, along with the retaining sleeve, inner sleeve, and key body, are pushed up and rotated back to the unlocked position. 3. The locking system structure for manual transmissions, claimed under clauses 1 or 2, has the following characteristics: A movement restrictor is attached to the base of the gear lever. The gear restriction hole has guide grooves at its base. When the outer sleeve is pressed down into the gear restriction hole, it is locked in place, preventing gear engagement. 4. The locking system structure for manual transmissions, as claimed in points 1 or 2, has the following characteristics: The outer sleeve movement restrictor can also be enhanced with a pair of sliding rails and a sliding plate for movement along the rails. The sliding plate will have a slot wide enough for the gear shift knob to move. A movement restriction groove will also be drilled in this slot to limit the movement of the outer sleeve. When the gear shift knob (along with the outer sleeve) is pressed into the restriction groove, the gear shift knob cannot move. 5. The locking system structure for manual transmissions, as claimed in points 1 or 2, has the following characteristics: The movement restrictor can also be fitted with a lever plate that can move along with the movement restrictor. This lever plate will have a slot wide enough for the gear lever head to move. A movement restriction groove is drilled in the slot to limit the movement of the outer sleeve. When the gear lever head (along with the outer sleeve) is pressed down into the movement restriction groove, the gear lever head cannot move. 6. The locking system structure for manual transmissions, as claimed in point 1, has the following characteristics: The underside of the gear shift lever head may be grooved for clamping, and a pin attached to the movement restrictor of the gear shift lever head will be inserted into the groove. When the lever head is pressed down, the gear shift lever will be unable to move because the pin is clamped into the groove. 7. The locking system structure for manual transmissions, as claimed in point 1, has the following characteristics: The gear shift knob may be designed with a hook to lock into the movement restriction hole on the movement restrictor. When the gear shift knob is pressed down, the hook is inserted into the movement restriction hole, thus preventing the gear shift knob from moving.