Pounding tool

by: Lin, Chung-Chiang;

A pounding tool comprises a head, and a handle which is connected at one end thereof with the head and is provided with a protective jacket fitted thereover to facilitate the gripping of the handle with hand. The protective jacket is provided with a plurality of shock-absorbing through holes which are arranged in rows along the longitudinal direction of the protective jacket. The handle has a top side and a bottom side, and a direction formed from the top side to the bottom side. The head has a pounding direction which is the same as the direction which is formed from the top side to the bottom side of the handle. The through holes are located over the top side and under the bottom side of the handle.

FIELD OF THE INVENTION

The present invention relates generally to a pounding tool, and more particularly to a hammer.

BACKGROUND OF THE INVENTION

As shown in FIG. 1, a prior art hammer 5 comprises a main body 60 and a protective jacket 70.

The main body 60 has a head 61 and a handle 62 which is provided with a top side 621 and a bottom side 622. The direction extending from the top side 621 to the bottom side 622 is the same as the pounding direction of the head 61.

The protective jacket 70 is made of a plastic material by injection molding and is fitted over the handle 62 to facilitate the gripping of the handle 62.

Such a prior art hammer 5 as described above is defective in design in that the reaction force, which is brought to pass by the pounding action of the head 61, is transmitted via the handle 62 and the protective jacket 70 to the hand holding the hammer 5, thereby resulting in the numbness of the hand.

With a view to overcoming the drawback of the prior art hammer 5, another prior art hammer 6 is provided on the protective jacket 80 thereof with two straight troughs 81 extending along the direction of the longitudinal axis of the protective jacket 80 such that the two troughs 81 are corresponding in location to the top side 91 and the bottom side 92 of the handle 90 for absorbing the shock wave. The protective jacket 80 is effective in mitigating the reaction force that is brought about by the pounding action of the hammer 6; nevertheless the protective jacket 80 is not cost-effective. The troughs 81 of the protective jacket 80 are formed by drilling or injection molding. The drilling method is technically difficult and time-consuming, whereas the method of injection molding is technically infeasible because of the design problem of the molding tool and the problem of releasing the protective jacket from the molding tool in which the protective jacket is formed. For example, the molding tool must be provided with two long molding columns for forming the troughs 81. The molding columns are vulnerable to deformation or severance.

SUMMARY OF THE INVENTION

The primary objective of the present invention is therefore to provide a pounding tool which is free from the drawbacks of the prior art pounding tools described above.

In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by a pounding tool with a protective jacket which is fitted over the handle of the pounding tool and is provided with a plurality of shock-absorbing holes which are arranged in two rows and are respectively located over the top side of the handle and under the bottom side of the handle.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a longitudinal sectional view of a prior art pounding tool.

FIG. 2 shows a longitudinal sectional view of another prior art pounding tool.

FIG. 3 shows a perspective view of a first preferred embodiment of the present invention.

FIG. 4 shows a side view of the first preferred embodiment of the present invention.

FIG. 5 shows a sectional view of a portion taken along the direction indicated by a line 5--5 as shown in FIG. 4.

FIG. 6 shows a side view of a second preferred embodiment of the present invention.









FIG. 7 shows a sectional view of a portion taken along the direction indicated by a line 7--7 as shown in FIG. 6.

FIG. 8 shows a side view of a third preferred embodiment of the present invention.

FIG. 9 shows a sectional view of a portion taken along the direction indicated by a line 9--9 as shown in FIG. 8.

FIG. 10 shows a side view of a fourth preferred embodiment of the present invention.

FIG. 11 shows a sectional view of a portion taken along the direction indicated by a line 11--11 as shown in FIG. 10.

DETAILED DESCRIPTION OF THE INVENTION

As shown in FIGS. 3-5, a hammer 1 embodied in the present invention comprises a main body 10 and a protective jacket 20.

The main body 10 has a head 11, and a handle 12 connected at one end thereof with the head 11 and provided with a top side 121 and a bottom side 122. The direction formed from the top side 121 to the bottom side 122 is the same as the pounding direction of the head 11.

The protective jacket 20 is made of a plastic material by injection molding and is fitted over the handle 12 to facilitate the gripping of the handle 12. The protective jacket 20 is provided with a plurality of through holes 21 extending from one side thereof through other side thereof. The through holes 21 are of two forms, namely, oblong through holes 21A and round through holes 21B. The oblong through holes 21A and the round through holes 21B are arranged alternately and linearly in two rows along the longitudinal direction of the protective jacket 20 and are located respectively over the top side 121 and under the bottom side 122 of the handle 12.

A reaction force is brought about by the pounding action of the head 11 such that the reaction force is transmitted to the protective jacket 20 in which the reaction force is partially absorbed by the through holes 21 of the protective jacket 20. As a result, the shock wave is so minimized that it does not cause a painful or numb feeling in the hand holding the hammer 1.

The through holes 21 of the protective jacket 20 of the present invention are relatively shallow and can be therefore drilled with ease. In addition, the through holes 21 can be made integrally with the protective jacket 20 by injection molding. The design of the molding tool is also less complicated as compared with that of the prior art molding tool. As a result, the protective jacket 20 of the present invention is relatively cost-effective.

The through holes of the protective jacket 20 of the present invention may be various in pattern. As shown in FIGS. 6 and 7, a hammer 2 of the second preferred embodiment of the present invention comprises a protective jacket 30 which is provided with a plurality of through holes 31 and partitions 32 of a semispherical construction. Now referring to FIGS. 8 and 9, a hammer 3 of the third preferred embodiment of the present invention is shown comprising a protective jacket 40 which is provided with a plurality of through holes 41 in communication with one another. As shown in FIGS. 10 and 11, a hammer 4 of the fourth preferred embodiment of the present invention comprises a protective jacket 50 which is provided with a plurality of through holes 51 which are basically similar to the through holes 41 of the third preferred embodiment described above, with the exception being that the partitions 52 of the protective jacket 50 are tapered in shape.

Workpiece feeding-ejection mechanism

Railcar straddle for material handling

Isothiazole and isoxazole sulphoxides

Optical fiber strain relief device

Dispenser

Extrusion machine

Thin layer ablation apparatus

Screw

Insulating insert for magnetic valves

Soybean cultivar 40064423

Flash jet coolant circulation system

Dual-wavelength x-ray monochromator

Wheelchair motorizing apparatus

Froth flotation

Direct conversion receiver per-selection

Brake pressure control valve

Drum construction

Drain-extended MOS ESD protection structure

Intraocular lens

Oxide-superconduction grain boundary tunneling device

Probing with backside emission microscopy

Solar thermal propulsion unit

Signal amplifier

Reversible code compander

Mower deck bumper

Metering apparatus

Polysaccharides and preparation thereof

Motor control system

Cervical traction device

Facsimile compression for transmission

Start-up circuit for voltage regulators

Liquid container

Plain bearing

Modular station platform construction kit

Weapon stabilization system

Structurally efficient inflatable protective device

Automatic trimming machine

Motor vehicle gearbox

DNA sequence encoding N-acetyl-galactosamine-transferase

Snap fastening device

Perfusive chromatography

Compartmentalized basket truck

Hard surface detergent composition

Ice body delivery apparatus

Decoupled integrated circuit package

Window sash

Method for preparing microemulsions

Imidazodiazepine derivative

Cotton gin control

Variable delay memory system

Floating inlet tube

Sliding exhaust brake system

Elongated flexible detonating device

Method for purifying acetone

Passive lavatory cleanser dispensing system

Fuel dispensing nozzle

Process for coating glass

Antimicrobial cationic peptides

Low-noise frequency synthesizer

Flash memory device

Polishing apparatus

Neck towel and adjustable clasp

Powder dividing device for camera

X-ray lens

Phosphorus-containing copolyamides and fibers thereof

Endoscope signal level control

Manual floor sweeper

Ribbed clothlike nonwoven fabric

Pest bait station

Non-aqueous electrochemical cell

Fermentation process

Simultaneous telecommunication between radio stations

Baby blanket

Pulse width modulation operation circuit

Power-generating control apparatus for vehicle

Stabilized throttle control system

Method of treating melanoma

Focused image tremble correcting device

Master cylinder apparatus

Fuel system for multicylinder engines

Selective hydrogenation of olefins

Developing unit for electro-photographic apparatus

Control means for ground hydrants

Optical device, system and method

Plastic orientation measurement instrument

Multiple pouch bagging apparatus

Pharmaceutically active morpholinol

Production of dihydroxydiphenyl alkanes

Light distribution device

Lithography process

Surface modifier composition

Method of fabricating electronic circuits

Nitrogen detection

Glass compositions

Catalyzed fluorination of chlorocarbons

Clothes hanger

Internal combustion engine

Display hook system