JPS6325096Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a screwdriver, and particularly to a screwdriver incorporating a writing instrument.

[Conventional technology and its problems]

At various work sites where screwdrivers are used,
There may be times when it is necessary to mark materials, make notes, or perform calculations, but when the need arises, workers do not always have a writing instrument with them, which often causes inconvenience. be.

Therefore, the purpose of this invention is to provide a screwdriver that can also be used as a writing instrument.

[Means for solving problems]

This idea integrates a screwdriver body by inserting it into the grip part, provides a through hole that reaches from the top of the grip part to the tip of the main body, and incorporates a mechanical writing instrument with a lead retraction mechanism into the through hole. When the writing instrument is not in use, the lead is retracted into the tip of the main body, and when the writing instrument is in use, the lead is exposed at the tip of the screwdriver body using the lead retraction mechanism.

[Effect]

In the screwdriver configured as described above, the core is in a retracted state in a normal state, so that the tip of the main body can be engaged with the screw head to apply torque to the screw. When used as a writing instrument, the lead protrusion/retraction mechanism is operated to make the lead protrude from the tip of the main body for writing.

〔Example〕

In FIG. 1, 1 is a screwdriver main body, and 2 is a mechanical writing instrument having a lead ejection/retraction mechanism built into the screwdriver main body.

The screwdriver main body 1 is integrated with a grip part 3 by firmly inserting a screwdriver shaft 4 with an appropriate rotation stopper, and a fitting part 5 for fitting a Phillips screw is formed at the tip of the screwdriver shaft 4. A through hole 6 is provided in the axial center of the screwdriver shaft 4.

The writing instrument 2 is loaded into the axial through hole 6 of the screwdriver shaft.

The writing instrument 2 is a sharp pencil as an example; 7 is an inner cylinder fixed to a screwdriver shaft 4 with a set screw 8; 9 is an axial linear notch groove formed at one location on the circumferential surface of the inner cylinder 7; 10 is an axially linear notch groove; loaded into the inner cylinder 7,
a reciprocating tube that holds the rear end of the pencil lead 11;
Reference numeral 12 designates a claw protruding from the outer peripheral surface of the reciprocating cylinder 10, which fits into the notch groove 9 of the inner cylinder and further projects. Reference numeral 13 designates a rotatable outer cylinder provided with a spiral groove 14 into which the tip of the claw fits. The rear end of the cylinder 13 protrudes from the rear end opening of the grip part 3 and becomes a rotating knob part. Inside this knob part, a spare core is stored in a compartment 15 with a bottom, and a cap 16 is mounted in a non-rotatable manner. 17,
Reference numeral 18 indicates a locking rib of the cap. Again 1
9 is a nut that prevents the outer cylinder 13 from coming out on the rear side, 20
is a rear end flange of the outer cylinder 13 that is held down by a nut 19.

In this sharp pencil, the rear end of the outer cylinder 13 is pinched and rotated to move the reciprocating cylinder 10 forward and backward, and when the pencil moves forward, the lead 11 protrudes from the tip of the screwdriver shaft 4, allowing writing.

Note that the writing instrument 2, which is a sharp pencil, may be a push-pull type with a lead that comes out, or it may be a ballpoint pen-type writing instrument.

〔effect〕

As described above, this invention incorporates a mechanical writing instrument with a lead retraction mechanism into the through hole that extends from the top of the grip to the tip of the screwdriver shaft in the screwdriver body, and the lead is retracted into the tip of the screwdriver body when not in use. Since the lead is exposed at the tip of the screwdriver body by the lead retracting mechanism when the writing instrument is used, the screwdriver can be conveniently used as a writing instrument if necessary.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an example of the screwdriver of the present invention, Figure 2
The figure is a perspective view of the distal end portion of the same as above. 1...Screwdriver body, 2...Writing instrument, 3...Grip part, 4...Screwdriver shaft, 5...Tip fitting part,
6...Through hole, 7...Inner cylinder, 9...Notch groove, 10
... Advancement/retraction tube, 11... Core, 12... Claw, 13...
Outer cylinder, 14... spiral groove.

Claims (1)

[Scope of utility model registration request] In a screwdriver formed by inserting and integrating a screwdriver body into a grip part, a through hole is provided that reaches from the top of the grip part to the tip of the screwdriver body, and a mechanical writing instrument having a lead retraction mechanism is incorporated into the through hole. ,
A screwdriver characterized in that when the writing instrument is not in use, the lead is retracted into the tip of the main body, and when the writing instrument is in use, the lead is exposed at the tip of the screwdriver main body by the above-mentioned lead ejection/retraction mechanism.