JP2022072063A - driver - Google Patents

Abstract

To provide a driver that allows use appropriate for the location of fastening of a screw and a bolt by being separated at a construction site and eliminates the need to carry or store many drivers with long and short handles.SOLUTION: A fitting projection part 2 is formed at a tip part of a grip handle 1 of a short dimension, a fitting recessed part 4 is formed at a rear end part of a grip handle 3 of a long dimension, and the fitting projection part 2 is detachably connected to the fitting recessed part 4. The short grip handle 1 has a short bit Ba projecting frontward. The long grip handle 3 is provided with an insertion hole 3a from a bottom surface 4b of the fitting recessed part 4 over to a front part of the long grip handle 3, and the short bit Ba is held in the insertion hole 3a in an insertable and detachable manner, with a long bit Bb projecting frontward.SELECTED DRAWING: Figure 2

Description

The present invention relates to a driver capable of changing the length of a grip handle according to a tightening place such as a screw or a bolt at a construction site.

There are many types of conventional screwdrivers with long and short grips in order to use them according to the tightening location of screws and bolts at construction sites, etc., and various ideas have been devised for the bit holding mechanism. ing.

For example, in the case of a long grip handle, as shown in FIG. 8, there is a bit holder 12 fixed to the tip of the grip handle 11 in which a nut 14 with a bit B insertion hole 13 is projected. Patent Document 1).

Further, in the case of a long grip handle, as shown in FIG. 9, a bit shaft 22 having peripheral grooves 21 formed at a plurality of places and a holding cylinder 23 for holding the bit shaft 22 non-rotatably are provided, and the inside of the bit is provided. It is composed of a grip handle 25 as an insertion hole 24 of the shaft 22, and locks any peripheral groove 21 of the bit shaft 22 when the bit shaft 22 is inserted into the holding cylinder 23 of the grip handle 25. (Patent Document 2).

The short grip handle is a replaceable driver provided with a bit holder 31, as shown in FIG. 10, and penetrates a storage hole 34 longer than the axial length of the bit 33 in the diameter direction of the grip handle 32. However, there is a case in which a leaf spring 35 having a convex portion 35a for elastically holding the replacement bit 33 stored in the storage hole 34 is provided on the inner peripheral surface of the storage hole 34 (Patent Document 3). ..

Further, in the case of a short grip handle, as shown in FIG. 11, the driver has a shaft portion 42 projecting from the front end of the grip handle 41 having a size that fits in the palm of the user, and the grip handle 41 is abbreviated. There is a cylindrical body shape, the diameter of the grip handle 41 is substantially the same as the diameter of the grip handle of a hand-held screwdriver of normal size, and the thickness of the grip handle 41 is set to a size that fits in the pad of the finger of the user's hand. (Patent Document 4).

Japanese Unexamined Patent Publication No. 11-245174 Utility Model Registration No. 3117527 Gazette Jitsukosho 60-24541 Gazette Japanese Unexamined Patent Publication No. 2006-159364

However, with conventional drivers, there are only long and short grip handles, so use one with a suitable grip handle depending on the tightening location of screws, bolts, etc. at the construction site. Has the problem that it is inconvenient to carry and store long and short grips, as well as medium-sized ones as needed.

Therefore, the present invention solves the problem of the conventional driver, and it is not necessary to carry or store many long or short grips, and the length can be separated by separating them at a construction site or the like. It was made for the purpose of providing a driver that can be changed and used according to the tightening place such as a screw or a bolt.

Therefore, the driver of the present invention forms a fitting convex portion 2 at the tip end portion of the grip handle 1 having a short dimension, and forms a fitting concave portion 4 at the rear end portion of the grip handle 3 having a long dimension. It is assumed that the fitting convex portion 2 is connected to 4 so as to be removable. The short grip handle 1 has a short bit Ba protruding to the front portion, and the long grip handle 3 has an insertion hole 3a extending from the bottom surface 4b of the fitting recess 4 to the front portion of the long grip handle 3. The short bit Ba is provided and held in the insertion hole 3a so as to be removable, and the long bit Bb is projected to the front portion.

In the driver of the present invention, the short grip handle 1 is provided with an insertion hole 1a from the front end of the fitting convex portion 2 to the rear portion of the short grip handle 1, and the short bit Ba is held in the insertion hole 1a so as to be removable. The long grip handle 3 is provided with an insertion hole 3b from the front end to the rear portion, and the long bit Bb is held in the insertion hole 3b so as to be removable.

In the driver of the present invention, the fitting convex portion 2 is a polygonal column, and the fitting concave portion 4 is a polygonal hole matching the fitting convex portion 2.

In the driver of the present invention, the fitting convex portion 2 is a polygonal pillar, and each corner portion of the polygonal pillar is provided with a protruding protrusion 2a, and the fitting concave portion 4 matches the fitting convex portion 2. It is assumed that each corner of the polygonal hole is provided with a groove portion 4a corresponding to the protrusion 2a.

Since the driver of the present invention is configured as described above, it is possible to separate the screwdriver at a construction site or the like, change the length, and use a screwdriver, a bolt, or the like according to the tightening place. It will also be convenient to carry and store.

It is a top view which shows one Embodiment of the driver of this invention. FIG. 1 is a partially broken plan view of the driver of the present invention shown in FIG. 1 in a separated state. It is sectional drawing of the driver of this invention by line AA in FIG. It is sectional drawing of the driver of this invention by line BB in FIG. FIG. 2 is a cross-sectional view of the driver of the present invention taken along the line CC in FIG. It is sectional drawing of the driver of this invention by the DD line in FIG. It is sectional drawing of the driver of this invention by line EE in FIG. It is sectional drawing which shows the 1st example of the conventional driver. It is sectional drawing which shows the 2nd example of the conventional driver. It is a main part breaking plan view which shows the 3rd example of the conventional driver. It is a perspective view which shows the 4th example of the conventional driver.

Hereinafter, embodiments for implementing the driver of the present invention will be described in detail with reference to the drawings.

The driver of the present invention forms a fitting convex portion 2 at the tip end portion of the grip handle 1 having a short dimension, and forms a fitting recess 4 at the rear end portion of the grip handle 3 having a long dimension. It is assumed that the fitting convex portion 2 is connected so as to be removable.

As long as the grip handle 1 is shorter than the grip handle 3 and the grip handle 3 is longer than the grip handle 1, the dimensions thereof are not particularly limited, but the total length La of the grip handle 1 is preferably about 4 to 6 cm. The total length Lb of the grip handle 3 is preferably about 6 to 10 cm.

The grip handle 1 is provided with an insertion hole 1a from the front end of the fitting convex portion 2 to the rear portion of the grip handle 1, and the short bit Ba is held in the insertion hole 1a so as to be removable, and the short bit Ba is held. It protrudes to the front. The grip handle 1 is preferably made of synthetic resin in terms of workability and the like, and a plurality of ribs 1b are provided around the body portion so that the grip handle 1 does not slip when held by hand and is easy to tighten. are doing.

The insertion hole 1a is a cylinder hole of the holding cylinder 5 built in the grip handle 1. The holding cylinder 5 is preferably made of metal in terms of strength and the like, and a vertical hole 5a communicating with the insertion hole 1a is provided in the intermediate portion, and the holding cylinder 5 is provided in a support 6 such as a C ring surrounding the vertical hole 5a. The protrusion 6a is projected from the vertical hole 5a into the insertion hole 1a. Then, by pressing the protrusion 6a against the side surface of the short bit Ba inserted into the insertion hole 1a, the short bit Ba is held in the insertion hole 1a so as to be removable. Although the short bit Ba is held in the grip handle 1 so as to be freely insertable and detachable in this way, it may be fixed to the grip handle 1.

Further, the insertion hole 1a is a hexagonal hole and the short bit Ba is a hexagonal bit, but the insertion hole 1a may be a square hole other than the hexagonal hole and the short bit Ba may be a square bit corresponding to the insertion hole 1a. can.

The fitting convex portion 2 can be a polygonal column such as a hexagonal column, but as shown in FIG. 6, each corner portion of the polygonal column is provided with a protrusion 2a protruding in the radial direction. It is supposed to be. Further, the fitting recess 4 can be a polygonal hole such as a hexagonal hole that matches the fitting convex portion 2, but as shown in FIG. 7, the protrusion 2a is formed at each corner of the polygonal hole. It is assumed that the groove portion 4a corresponding to the above is provided. By doing so, the contact area when the fitting convex portion 2 is fitted to the fitting concave portion 4 is increased, and the fitting strength between the two is increased.

The grip handle 3 is provided with an insertion hole 3a from the bottom surface 4b of the fitting recess 4 to the front portion of the grip handle 3, and the short bit Ba is held in the insertion hole 3a so as to be removable. Further, the grip handle 3 is provided with an insertion hole 3b from the front end to the rear portion, and the long bit Bb is held in the insertion hole 3b so as to be removable, and the long bit Bb is projected to the front portion. The grip handle 1 is preferably made of synthetic resin in terms of workability and the like, and a plurality of ribs 3c are provided around the body portion so that the grip handle 1 does not slip when held by hand and is easy to tighten. are doing.

The insertion hole 3a is a cylinder hole of the holding cylinder 7 built in the grip handle 3. The holding cylinder 7 is preferably made of metal in terms of strength and the like, and a vertical hole 7a communicating with the insertion hole 3a is provided at the rear portion, and the holding cylinder 7 is provided in a support 8 such as a C ring surrounding the vertical hole 7a. The protrusion 8a is projected from the vertical hole 7a into the insertion hole 3a. Then, by pressing the protrusion 8a against the side surface of the short bit Ba inserted into the insertion hole 3a, the short bit Ba is held in the insertion hole 3a so as to be removable.

The insertion hole 3b is a cylinder hole of the holding cylinder 7 built in the grip handle 3. A vertical hole 7b communicating with the insertion hole 3b is provided in the front portion of the holding cylinder 7, and a protrusion 9a provided on a support 9 such as a C ring surrounding the vertical hole 7b is inserted from the vertical hole 7b. It is projected into the hole 3b. Then, by pressing the protrusion 9a against the side surface of the long bit Bb inserted into the insertion hole 3b, the long bit Bb is held in the insertion hole 3b so as to be removable. Although the long bit Bb is held in the grip handle 3 so as to be freely insertable and detachable in this way, it may be fixed to the grip handle 3.

Further, the insertion holes 3a and 3b are hexagonal holes, and the short bit Ba and the long bit Bb are hexagonal bits, but the insertion holes 3a and 3b are square holes other than the hexagonal holes, and the short bit Ba and the long bit Bb are. It can also be a square bit corresponding to the insertion holes 3a and 3b. Further, as long as the short bit Ba is shorter than the long bit Bb and the long bit Bb is longer than the short bit Ba, the dimensions thereof are not particularly limited, but the total length Lc of the short bit Ba is about 6 to 8 cm. The total length Ld of the long bit Bb is preferably about 10 to 15 cm.

The driver of the present invention configured in this way can perform tightening work such as screws and bolts at a construction site or the like as follows.

First, as shown in FIG. 1, the driver of the present invention holds the body portion around the rib 1b of the short grip handle 1 in the state where the long grip handle 3 is connected to the short grip handle 1. The long bit Bb of the long grip handle 3 can be used to tighten screws, bolts, and the like.

Further, as shown in FIG. 2, the driver of the present invention holds the body portion around the rib 1b of the short grip handle 1 in the state where the long grip handle 3 is separated from the short grip handle 1. , The short bit Ba of the short grip handle 1 is used to tighten screws and bolts, and the long grip handle 3 is a long bit of the long grip handle 3 by holding the body part around the rib 3c of 2 in the hand. With Bb, tightening work such as screws and bolts can be performed.

Therefore, as described above, the driver of the present invention can be used for tightening screws, bolts, etc. by changing the lengths to three different lengths. be able to.

Further, the driver of the present invention can be changed to three different lengths by one without preparing three drivers, which makes it convenient to carry and store.

Further, in the case where the driver of the present invention holds the short bit Ba on the short grip handle 1 as removable and the long bit Bb on the long grip handle 3 as removable, the head of a screw or bolt to be tightened is used. It can be replaced with a short bit Ba and a long bit Bb having various bit heads according to the unit.

Moreover, since the driver of the present invention can be replaced with a short bit Ba and a long bit Bb having various bit heads, it is not necessary to prepare a large number of drivers having bits having various bit heads. It will be even more convenient to carry and store.

1 Grip handle 1a Insertion hole 2 Fitting convex part 2a Protrusion part 3 Grip handle 3a Insertion hole 3b Insertion hole 4 Fitting concave part 4a Groove part 4b Bottom surface Ba Short bit Bb Long bit

Claims (4)

A fitting convex portion is formed at the tip of a short-sized grip handle, a fitting concave portion is formed at the rear end portion of a long-sized grip handle, and the fitting convex portion is connected to the fitting concave portion so as to be removable. It is supposed to have been done
The short grip handle has a short bit protruding to the front portion, and the long grip handle has an insertion hole from the bottom surface of the fitting recess to the front portion of the long grip handle, and the short bit is provided in the insertion hole. A driver characterized by holding the screwdriver as removable and having a long bit protruding to the front. The short grip handle is provided with an insertion hole from the front end of the fitting convex portion to the rear portion of the short grip handle, and the short bit is held in the insertion hole so as to be removable, and the long grip handle is from the front end to the rear portion. The driver according to claim 1, wherein an insertion hole is provided in the insertion hole, and a long bit is held in the insertion hole so as to be removable. The driver according to claim 1 or 2, wherein the fitting convex portion is a polygonal column, and the fitting concave portion is a polygonal hole matching the fitting convex portion. The fitting convex portion is a polygonal pillar, and each corner portion of the polygonal pillar is provided with a protruding portion, and the fitting concave portion is a polygonal hole matching the fitting convex portion, and each of the polygonal holes. The driver according to claim 1 or 2, wherein the corner portion is provided with a groove portion matching the protrusion.

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