Detachable hand tool

• US 7,653,970 B1
• Filed: 01/16/2009
• Issued: 02/02/2010
• Est. Priority Date: 01/16/2009
• Status: Expired due to Fees

• Current Assignee: Jin-Tsai Lai
• Original Assignee: Jin-Tsai Lai
• Inventors: Lai, Jin-Tsai
• Primary Examiner(s): Miller; William L.
• Application Number:
  US12/355,735
• Time in Patent Office: 382 Days
• Field of Search: 164/22, 161/101, 164/27, 16D/IG.41, 814/89, 745/43, 403/327, 403/329
• US Class Current: 16/422
• CPC Class Codes: B25G 3/12 Locking and securing devices
• CPC Class Codes: B25G 3/18 comprising catches or pawls
• CPC Class Codes: Y10S 16/41 Coupling, e.g. handle, rod, shaft
• CPC Class Codes: Y10T 403/602 by separate spring

Abstract

A detachable hand tool includes a handle, a spindle partially received in one end of the handle, a cap partially received in the other end of the handle, a casing sleeved on the spindle, a head sleeved on the casing, a tool driver partially and detachably mounted in the spindle, and a control assembly mounted on the spindle for detaching the tool driver.

Claims

1. A detachable hand tool comprising:

a hollow handle;

a spindle having a first end partially received in the handle and a second end opposite to the first end, the spindle having a groove longitudinally defined therein, the spindle having a first recess laterally defined therein and a second recess defined therein, the second recess being adjacent to the first recess;

a control assembly including;

an elastic clamp mounted on the spindle and positioned between the first recess and the second recess;

a seesaw pivotally received in the first recess and extending to the second recess, the seesaw mounted on the clamp and abutted against a top of the clamp;

a button partially received in the second recess and having a bottom abutted against the seesaw; and

a shank partially received in the second recess and abutted by the button, the shank selectively protruded from the spindle;

a tool driver having a neck formed thereon for corresponding to the clamp, the tool driver detachably plugged into the groove in the spindle and the neck locked by the clamp for fixing the tool driver in the spindle;

wherein when the button is slightly pressed in a first position, the button is relatively abutted against the seesaw which is pivoted to abut against the top of the clamp such that the clamp is elastically deformed for releasing the tool driver;

when the button is deeply pressed in a second position, the button is relatively abutted against the shank to push the tool driver such that the tool driver is slightly protruded from the groove for detaching the neck from the clamp.

2. The detachable hand tool as claimed in claim 1, wherein the spindle has a hole longitudinally defined therein and being adjacent to the groove, the control assembly having a spring compressively received in the hole, the shank mounted on the spring for selectively protruding from the hole to push the tool driver.

3. The detachable hand tool as claimed in claim 1, wherein the first recess has two pivot holes respectively defined in two inner lateral sides thereof, one end of the seesaw having two pivots disposed on two sides thereof which are correspondingly received in the two pivot holes in the first recess, the other end of the seesaw having a protruder formed thereon for abutting against the bottom of the button.

4. The detachable hand tool as claimed in claim 1, wherein the shank has a slope formed thereon and the button has a slant surface for correspondingly abutting against the slope of the shank.

5. The detachable hand tool as claimed in claim 1 further comprising a casing partially sleeved on the second end of the spindle, a cutout laterally defined in one end of the casing for receiving the button, the other end of the casing having a slot longitudinally defined therein for receiving the shank protruding from the spindle.

6. The detachable hand tool as claimed in claim 5, wherein the other end of the casing has a shoulder annularly formed on an outer periphery thereof, a head having one end longitudinally movably sleeved on the shoulder of the casing and the other end abutted against the tool driver, the shank selectively abutted against the head via the slot in the casing to relatively push the tool driver.

7. The detachable hand tool as claimed in claim 1 further comprising two supporters disposed between the first recess and the second recess, the clamp having a M-shaped structure transversely covering the two supporters, the clamp having two distal ends positioned under two supporters.