GB2466995A

GB2466995A - Detachable tool handle

Info

Publication number: GB2466995A
Application number: GB0900844A
Authority: GB
Inventors: Jin-Tsai Lai
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2010-07-21
Anticipated expiration: 2029-01-19
Also published as: GB2466995B; GB0900844D0

Abstract

A detachable hand tool includes a handle 2, a spindle 3 partially received in the handle, a cap 21 partially received in the other end of the handle, a casing 5 sleeved on the spindle, a head 6 sleeved on the casing, a tool driver 1 partially and detachably mounted in the spindle, and a control catch assembly 4 mounted on the spindle for detaching the tool driver. This assembly includes an elastic clip or clasp 40, a seesaw 41 and a shank 43 abutted by a release button 42. The tool head is detachably plugged into the groove in the spindle and the neck locked by the clip. The action of the button causes the seesaw to deform the clip and releases the tool head. This is a two part action: when the button is initially pressed the head is released, when fully depressed it is advanced from the handle. The clip may be supported on two bars and have an M-shaped structure such that compression of the centre moves the distal ends of out of engagement with the bars, allowing tool removal. There may be a casing 5 sleeved on the end of the spindle, which may have slots or cutouts to receive the button and shank.

Description

DETACHABLE HAND TOOL

1. Field of the Invention

The present invention relates to a hand tool, and more particularly to a detachable hand tool.

2. Description of Related Art

A conventional detachable hand tool in accordance with the prior art includes a hollow casing, a spindle received in the casing, a locking member disposed between the casing and the spindle to be relatively driven by the casing.

The spindle has an end having a connecting portion defined therein. The connecting hole has a spring received therein and a block mounted on the spring.

The block has a protrusion formed thereon. A tool driver is detachably received in the connecting hole. The block and the spring are pressed by the tool driver. A first end of the locking member is protruded from the connecting hole for allowing the tool driver extending in the connecting hole due to block pushed the locking member. When the block is pressed to a terminal of the connecting hole, the protrusion of the block presses a second end of the locking member for seesawly receiving the first end of the locking member for locking the tool driver.

When the second end of the locking member is pressed, the first end of the locking member is seesawly protruded from the connecting hole for releasing the tool driver from the connecting hole.

However, the tool driver detached from the conventional detachable handle tool is easily shot off due to an elastic force of the spring. When the tool driver is released from locking, the compressed spring is released and shoots the tool driver. It is dangerous for a neighboring person to be shot by the tool driver.

Furthermore, a speed of the tool driver shot by the conventional handle is fast such that the tool driver is easily lost.

The main objective of the present invention is to provide an improved detachable hand tool.

To achieve the objective, the detachable hand tool in accordance with the present invention comprises a hollow handle. A spindle is partially received in the handle. The spindle has a groove longitudinally defined therein and a hole longitudinally defined therein adjacent to the groove. The spindle has a first recess laterally defined therein and being adjacent to the first end thereof. The first recess has two pivot holes respectively defined in two inner lateral sides thereof. The spindle has a second recess laterally defined therein adjacent to the second end thereof. Two cylindrical supporters are disposed between the first recess and the second recess. A control assembly is mounted on the spindle. The control assembly includes an elastic clamp simultaneously transversely mounted on the two supporters, a seesaw received in the first recess and extending to the second recess, a spring compressively received in the hole in the spindle, a shank mounted on the spring, and a button mounted on the shank and the seesaw. The clamp has a M-shaped structure crossly covered the two supporters and two distal ends of the clamp positioned under two supporters. The seesaw is mounted on the clamp and has a bottom abutted against a top of the clamp. One end of the seesaw has two pivots disposed on two sides thereof for correspondingly receiving in the two pivot holes in the first recess and the other end of the seesaw has a protruder formed thereon. A bottom of the button is abutted against the protruder of the seesaw. The button has a slant surface formed on the bottom thereof. The shank has a first end having a slope complementally abutted against the slant surface of the button and a second end selectively protruded from the hole. A casing is sleeved on the second end of the spindle. A head has one end longitudinally movably sleeved on the casing and the other end abutted against the tool driver. A tool driver has a neck formed thereon for corresponding to the clamp. The tool driver adapted to be detachably plugged into the groove in the spindle and the neck locked by the clamp.

When the button is slightly pressed in a first position, the seesaw is relatively pressed by the button and the seesaw is relatively abutted against the clamp. The clamp is elastic deformed such that the two distal ends of the clamp are outwardly moved relative to each other for releasing the neck of the tool driver. The tool driver in the first position is detachable for preventing the tool driver from shooting due to an elastic force of the spring.

When the button is deeply pressed in a second position, the slant surface of the button is relatively abutted against the slope of the shank such that shank is protruded from the hole for abutting against the head. The head is longitudinally moved relative to the casing and relatively abutted against the tool driver for detaching the neck form the clamp in auxiliary. The tool driver is slightly protruded from the handle. Therefore, the user can easily detach the tool driver and replace a new one.

In the drawings: Fig. 1 is an exploded perspective view of a detachable hand tool in accordance with the present invention; Fig. 2 is a partial exploded perspective view of the detachable hand tool in accordance with the present invention; Fig. 3 is an assembled perspective view of the detachable hand tool in accordance with the present invention; Fig. 4 is a side plane cross-sectional view of the detachable hand tool in an original position in accordance with the present invention; Fig. 5 is a cross-sectional view of the detachable hand tool of the present invention along line 5-5 in Fig. 4; Fig. 6 is a side plane cross-sectional view of the detachable hand tool in a first position in accordance with the present invention; Fig. 7 is a cross-sectional view of the detachable hand tool of the present invention along line 7-7 in Fig. 6; Fig. 8 is a side plane cross-sectional view of the detachable hand tool in a second position in accordance with the present invention; Fig. 9 is a cross-sectional view of the detachable hand tool of the present invention along line 9-9 in Fig. 8; Fig. 10 is a side plane cross-sectional view of the detachable hand tool in a detached position in accordance with the present invention; and Fig. 11 is a cross-sectional view of the detachable hand tool of the present invention along line 11-11 in Fig. 10; Referring to the drawings and initially to Figs. 1-3, a detachable hand tool in accordance with the present invention comprises a handle 2, a spindle 3 partially received in one end of the handle 2, a cap 21 partially received in the other end of the handle 2, a casing 5 sleeved on the spindle 3, a head 6 sleeved on the casing 5, a tool driver 1 partially and detachably mounted in the spindle 3, and a control assembly 4 mounted on the spindle 3 for detaching the tool driver 1.

The spindle 3 has a first end partially received in the handle 2 and a second end partially received in the casing 5. The first end of the spindle 3 is opposite to the second end of the spindle 3. The spindle 3 has a groove 32 longitudinally defined therein. The spindle 3 has a hole 333 longitudinally defined therein and being adjacent to the groove 32. The spindle 3 has a first recess 331 laterally defined therein and being adjacent to the first end thereof.

The first recess 331 has two pivot holes 334 respectively defined in two inner lateral sides thereof. The spindle 3 has a second recess 332 laterally defined therein and being adjacent to the second end thereof. The first recess 331 is communicated with the second recess 332. The hole 333 is communicated with the second recess 332. Two cylindrical supporters 335 are disposed between the first recess 331 and the second recess 332.

The control assembly 4 includes an elastic clamp 40 simultaneously transversely mounted on the two supporters 335, a seesaw 41 received in the first recess 331 and extending to the second recess 332, a spring 432 compressively received in the hole 333 in the spindle 3, a shank 43 mounted on the spring 432, and a button 42 mounted on the shank 43 and the seesaw 41. The clamp 40 has a M-shaped structure crossly covered the two supporters 335 and two distal ends of the clamp 40 are positioned under two supporters 335. The seesaw 41 is mounted on the clamp 40 and positioned between the two supporters 335. The seesaw 41 has a bottom abutted against a top of the clamp 40. One end of the seesaw 41 has two pivots 411 disposed on two sides thereof and the other end of the seesaw 41 has a protruder 412 formed thereon. The two pivots 411 are correspondingly received in the two pivot holes 334 in the first recess 331. The button 42 is partially received in the second recess 332 and mounted on a top of the other end of the seesaw 41. A bottom of the button 42 is abutted against the protruder 412 of the seesaw 41. The button 42 has a slant surface 421 formed on the bottom thereof The shank 43 mounted on the spring 432 and partially received in the hole 333 from the second recess 332. The shank 43 has a first end having a slope 431 complementally abutted against the slant surface 421 of the button 42 and a second end selectively protruded from the hole 333.

The casing 5 is sleeved on the second end of the spindle 3. The casing 5 has a cutout 53 defined in a lateral of one end thereof for receiving the button 42.

The other end of the casing 5 has a shoulder 52 annularly formed on an outer periphery thereof for movably connecting to the head 6. The other end of the casing 5 has a slot 51 longitudinally defined therein for receiving the second end of shank 43 protruded from the hole 333 in the spindle 3.

The head 6 has one end longitudinally movably sleeved on the shoulder 52 of the casing 5 and the other end abutted against the tool driver 1. The second end of the shank 43 is selectively abutted against an inner periphery of the head 6 for relatively push the tool driver 1.

The tool driver 1 has a driving head 11 and a shaft 10 extending from the driving head 11. In the preferred embodiment of the present invention, the driving head 11 is a shovel. The shaft 10 of the tool driver 1 has a neck 101 formed thereon. The tool driver 1 has a shoulder 12 formed between the driving head 11 and the shaft 10.

When assembling, the first end of the spindle 3 is received in the handle 2 and the second end of the spindle 3 is sleeved by the casing 5. The head 6 is sleeved on the shoulder 52 of the casing 5. The tool driver 1 is plugged into the groove 32 in the spindle 3 via the head 6 and the casing 5. The shoulder 12 of the tool driver 1 is abutted against head 6. The neck 101 of the tool driver 1 is locked by the clamp 40 for fixing the tool driver 1 assembled in the spindle 3.

Referring to Figs. 4-5 shows an original position of the detachable hand tool in accordance with present invention. When the button 42 is slightly pressed in a first position, as shown on Figs. 6-7, the protruder 412 of the seesaw 41 is relatively pressed by the button 42 such that the seesaw 41 is pivoted relative to the two pivot holes 334 in the first recess 331 in the spindle 3. The bottom of the seesaw 41 is relatively abutted against the top of the clamp 40. The clamp 40 is elastic deformed due to the two supporters 335 and the seesaw 41 cooperatively compressed the clamp 40 such that the two distal ends of the clamp 40 are outwardly moved relative to each other for releasing the neck 101 of the tool driver 1. The tool driver 1 in the first position is detachable such that a user can pull out the tool driver 1 by hands.

Referring to Figs. 8-9, when the button 42 is further deeply pressed in a second position, the slant surface 421 of the button 42 is relatively abutted against the slope 431 of the shank 43. The spring 432 received in the hole 333 is compressed such that the shank 43 is moved relative to the button 42 and protruded from the hole 333 for abutting against the head 6 via the slot 51 in the casing 5. The head 6 is longitudinally moved relative to the casing 5 and relatively abutted against the shoulder 12 of the tool driver 1. The tool driver 1 in the second position is slightly protruded from the groove 32 for detaching the neck 101 form the clamp 40 in auxiliary such that the user can easily detach the tool driver 1 and replace a new one.

Referring to Figs. 10-11, when the tool driver 1 is totally detached from the handle 2 and the button 42 is released, the spring 432 is relatively released to push the shank 43. The shank 43 is relative moved toward the button 42 such that the slope 431 of the shank 43 is abutted against the slant surface 421 of the * button 42 for relatively moving the button 42 retained to the original position.

The clamp 40 is released and elastically pushed the seesaw 41 pivotally retained to the original position.

Claims

Claim(s) 1. A detachable hand tool comprising: a hollow handle 2; a spindle 3 having a first end partially received in the handle 2 and a second opposite to the first end, the spindle 3 having a groove 32 longitudinally defined therein, the spindle 3 having a first recess 331 laterally defined therein and a second recess 332 defined therein, the second recess 332 being adjacent to the first recess 331; a control assembly 4 including: a elastic clamp 40 mounted on the spindle 3 and positioned between the first recess 331 and the second recess 332; a seesaw 41 pivotally received in the first recess 331 and extending to the second recess 332, the seesaw 41 mounted on the clamp 40 and abutted against a top of the clamp 40; a button 42 partially received in the second recess 332 and having a bottom abutted against the seesaw 41; and a shank 43 partially received in the second recess 332 and abutted by the button 42, the shank 43 selectively protruded from the spindle 3; a tool driver 1 having a neck 101 formed thereon for corresponding to the clamp 40, the tool driver 1 adapted to be detachably plugged into the groove 32 in the spindle 3 and the neck 101 locked by the clamp 40, the tool driver 1 pushed by the shank 43; wherein when the button 42 is slightly pressed in a first position, the button 42 relatively abutted against the seesaw 41 pivoted to abut against the top of the clamp 40 such that the clamp 40 elastic deformed for releasing the tool driver 1; when the button 42 is deeply pressed in a second position, the button 42 relatively abutted against the shank 43 to push the tool driver 1 such that the tool driver 1 slightly protruded from the groove 32 for detaching the neck 101 from the clamp 40 in auxiliary.
2. The detachable hand tool as claimed in claim 1, wherein the spindle 3 has a hole 333 longitudinally defined therein and being adjacent to groove 32, the control assembly 4 having a spring 432 compressively received in the hole 333, the shank 43 mounted on the spring 432 for selectively protruding from the hole 333 to push the tool driver 1.
3. The detachable hand tool as claimed in claim 1, wherein the first recess 331 has two pivot holes 334 respectively defined in two inner lateral sides thereof, one end of the seesaw 41 having two pivots 411 disposed on two sides thereof and the other for corresponding receiving in the two pivot holes 334 in the first recess 331, the other end of the seesaw 41 having a protruder 412 formed thereon for abutting against the bottom of the button 42.
4. The detachable hand tool as claimed in claim 1, wherein the shank 43 has a slope 431 formed thereon and the button 42 has a slant surface 421 for correspondingly abutting against the slope 431 of the shank 43.
5. The detachable hand tool as claimed in claim 1 further comprising a casing 5 partially sleeved on the second end of the spindle 3, the casing 5 having a cutout 53 defined in a lateral of one end thereof for receiving the button 42, the other end of the casing 5 having a slot 51 longitudinally defined therein for receiving the shank 43 protruding from the spindle 3.
6. The detachable hand tool as claimed in claim 5, wherein the other end of the casing 5 has a shoulder 52 annularly formed on an outer periphery thereof, a head 6 having one end longitudinally movably sleeved on the shoulder 52 of the casing and the other end abutted against the tool driver 1, the shank 43 selectively abutted against the head 6 via the slot 51 in the casing 5 to relatively push the tool driver 1.
7. The detachable hand tool as claimed in claim 1 further comprising two supporters 335 disposed between the first recess 331 and the second recess 332, the clamp 40 having a M-shaped structure crossly covered the two supporters 335, the clamp 40 having two distal ends positioned under two supporters 335.
8. A detachable hand tool substantially as hereinbefore described with reference to and as shown in the accompanying drawings.