JP5181337B2 - Offset type screwdriver - Google Patents

Description

  The present invention relates to an offset driver suitable for screwing or loosening a screw or the like in a narrow work space.

  Conventionally, as this type of offset type driver, there is one composed of a tool part 11, a gripping plate 12, and a holder member 13 as shown in FIGS.

  The tool part 11 is a short bit or the like, provided with a blade part 11a on one end side, an intermediate part as a holding part 11b, and a base end part 11c on the other end side. Ring-shaped locking grooves 14a and 14b are recessed in the blade portion 11a and the base end portion 11c except for the holding portion 11b. The dimensions of the holding portion 11b are substantially the same as the thickness t of the gripping plate 12 described later.

  The holding plate 12 is an elongated plate having a thickness t, and a hexagonal hole 12a is formed through one end thereof. The hexagonal hole 12a has a shape and size into which the base end portion 11c of the tool portion 11 is fitted.

  The holder member 13 is formed by bending a thin plate into a substantially U shape, the inner width dimension is substantially the same as the thickness t of the gripping plate 12, and the opposed bent pieces 13a that are bent into a substantially U shape. Are formed with semi-circular engaging portions 13b and 13b having an inner diameter to be fitted into the locking grooves 14a and 14b of the tool portion 11.

In order to assemble an offset type driver composed of the tool part 11, the gripping plate 12 and the holder member 13, first, the tool part 11 is inserted into the hexagonal hole 12 a of the gripping plate 12, but the holding part 11 b of the tool part 11 is Since the grip plate 12 has substantially the same dimension as the thickness t of the grip plate 12, the locking grooves 14 a and 14 b are exposed close to the front and back surfaces of the grip plate 12. In this state, the holder member 13 is inserted from the edge side of the gripping plate 12, and the engaging portions 13 b and 13 b are fitted into the locking grooves 14 a and 14 b of the tool portion 11, whereby the tool portion 11 is rotated to the gripping plate 12. It is made to hold | maintain immovable (patent document 1).
Utility Model Registration No. 3120762 (3rd and 4th pages, FIGS. 1 to 4)

  However, in the conventional offset type screwdriver, a part of the holder member 13 that is bent in a substantially U-shape protrudes from the end of the gripping plate 12, so when screwing or loosening a screw or the like, The projecting portion of the holder member 13 may be a hindrance in a narrow work space, which may hinder the work.

  Further, in the conventional offset type screwdriver, when the protruding portion of the holder member 13 hits the work surface or the like, the holder member 13 may be loosened and hinder the holding of the tool portion 11 to the holding plate 12 in some cases. It had the problem that.

  Further, in the above-described conventional offset type screwdriver, since the engaging portions 13 b and 13 b of the holder member 13 are fitted into the locking grooves 14 a and 14 b of the tool portion 11, the tool portion 11 is held on the holding plate 12. If the engagement of the engaging portions 13b and 13b into the locking grooves 14a and 14b is released, the tool portion 11 can be removed from the gripping plate 12, and the tool portion 11 can be replaced with another one. The releasing work is difficult, and it is difficult to replace the tool part 11.

  Therefore, the present invention solves the above-mentioned conventional problems without causing any trouble in the work of screwing or loosening a screw or the like without the holder member protruding from the end of the gripping plate. The purpose of the present invention is to provide an offset type screwdriver in which the holder member is not loosened and does not hinder the holding of the tool part to the holding plate, and the tool part can be replaced very easily.

  The offset type driver according to the present invention comprises a tool part 1, a gripping plate 2 and a holder member 3. The tool part 1 is short, provided with a tip part 1a on one end side and a holding part 1b on the other end side. In addition, the holding portion 1b is made of a material that is attracted to the magnet, and the holding plate 2 is formed by stacking and fixing the metal plate 4 and the synthetic resin plate 5 on one end of the metal plate 4 to the tool. The holding portion 1b of the portion 1 is formed so as to penetrate the fitting hole 4a into which the holding portion 1b cannot be rotated, and the fitting hole 5a is recessed at one end of the synthetic resin plate 5 at a position corresponding to the fitting hole 4a. The holder member 3 is made of a magnet, and the holder member 3 is inserted into the fitting hole 5a of the synthetic resin plate 5 and held.

  And the offset type driver of this invention makes the holding part 1b of the said tool part 1 prismatic shape, and the angle | corner in which the holding part 1b of the said tool part 1 just fits the fitting hole 4a of the metal plate 4 of the said holding | grip board 2 is. It is assumed to be a hole.

  Further, the offset type screwdriver of the present invention has a fitting hole 4b formed through the other end portion of the metal plate 4 of the grip plate 2 so as to be screwed or loosened, and the grip plate A fitting hole 5b is formed through the other end of the synthetic resin plate 5 at a position corresponding to the fitting hole 4b, and a small protrusion 6 for holding the bolt or nut is formed on the hole wall surface of the fitting hole 5b. As formed.

  In the offset type driver of the present invention, the holder member 3 is formed in a disk shape, the fitting hole 4a of the metal plate 4 is a hexagonal hole, and the circumference of the holder member 3 is a circumscribed circle of the hexagonal hole. I have to.

  Further, in the offset type driver of the present invention, the gripping plate 2 has a bending angle of 10 to 20 degrees at an intermediate position in the longitudinal direction.

  In the offset type driver of the present invention, the groove 8 is formed at the bending position of the synthetic resin plate 5 of the gripping plate 2, and the bending position is thinned.

  Since the offset type screwdriver of the present invention is configured as described above, the holder member does not protrude from the end of the gripping plate, which hinders the work of screwing or loosening a screw or the like. The holder member is not loosened and does not hinder the holding of the tool part to the gripping plate, and the tool part can be replaced very easily. Can be performed more efficiently.

  Hereinafter, the best mode for carrying out the offset type driver of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 5, the offset type driver of the present invention is composed of a tool portion 1, a gripping plate 2 and a holder member 3.

  The tool portion 1 is a short bit of about 1 to 3 cm, and is provided with a tip portion 1a on one end side and a holding portion 1b on the other end side. The holding portion 1b is made of a material that is attracted to the magnet. In addition, although the said front-end | tip part 1a is made into the plus head in what was shown in figure, it can make it suitable for the operation | work by a driver, such as a minus head, a hexagon head, and a hexagon hole. In addition, the holding portion 1b has a hexagonal column shape in the illustrated example, but may have a prismatic shape such as a quadrangular column or an octagonal column.

  The holding plate 2 is formed by stacking and fixing two elongated plates, and the lower plate is a metal plate 4 and the upper plate is a synthetic resin plate 5.

  A fitting hole 4 a is formed through one end of the metal plate 4. The fitting hole 4a is, for example, a hexagonal hole, and has a shape and a dimension that the holding portion 1b is just fitted so that the holding portion 1b of the tool portion 1 is non-rotatably fitted. The metal plate 4 may have a fitting hole 4b formed through the other end. The fitting hole 4b is provided for screwing or loosening a hexagonal bolt, a hexagonal nut or the like, and has a shape and a dimension in which the hexagonal bolt, the hexagonal nut or the like is just fitted. In addition, the fitting hole 4a of the metal plate 4 is not a hexagonal hole but a square corresponding to the prism when the holding part 1b of the tool part 1 is formed in a prismatic shape other than a hexagonal prism such as a quadrangular prism or an octagonal prism. Needless to say, the holes are formed through. Furthermore, although the plate | board thickness of the said metal plate 4 can be about 1-3 mm, if it is plate | board thickness which has the intensity | strength which can be used as a driver, it will not specifically limit.

  One end of the synthetic resin plate 5 is recessed with a fitting hole 5a at a position corresponding to the fitting hole 4a. The fitting hole 5a is, for example, a round hole so that the holder member 3 is fitted and held as described later. The synthetic resin plate 5 may have a fitting hole 5b formed through the other end at a position corresponding to the fitting hole 4b. The fitting hole 5b is formed by forming a plurality of small protrusions 6 on the wall surface of the hole to hold the upper ends of the hexagon bolts and nuts fitted into the fitting hole 4b so that they do not fall. It is said. The fitting hole 5a of the synthetic resin plate 5 preferably has a shape and size into which the holder member 3 is fitted, and is formed in accordance with the shape and size of the holder member 3.

  Further, in order to overlap and fix the metal plate 4 and the synthetic resin plate 5, the metal plate 4 is provided with a plurality of small holes 4 c, and the small holes 5 c respectively corresponding to the small holes 4 c are formed in the synthetic resin plate 5. This can be done by passing the rivet 7 through these small holes 4c and 5c and fastening them, but they should be bonded with a strong adhesive so that the metal plate 4 and the synthetic resin plate 5 are not peeled off. You can also.

  Further, as shown in FIGS. 6 to 10, the holding plate 2 may have a bending angle of 10 to 20 degrees at a position of approximately １ ／ length in the longitudinal direction. In this case, if the groove 8 is formed at the bending position of the synthetic resin plate 5 and the bending position is made thin, cracks due to bending deformation of the synthetic resin plate 5 can be alleviated. By doing so, the gripping plate 2 can be lifted from the work surface in a narrow work space, and the gripping plate 2 can be easily gripped.

  The holder member 3 is made of a magnet and is fitted into a fitting hole 5a formed in a disk shape or the like and recessed in the synthetic resin plate 5. When the holder member 3 has a disk shape and is just fitted into the fitting hole 5a of the synthetic resin plate 5, when the fitting hole 4a formed through the metal plate 4 is a hexagonal hole, the holder member 3 If the circumference of this is the circumscribed circle of this hexagonal hole, the lower part of the holder member 3 will hit the periphery of the fitting hole 4a and will not fall out of the fitting hole 5a.

  And in order to use the offset type driver of this invention which consists of these tool parts 1, the grip board 2, and the holder member 3, the front-end | tip part 1a of the tool part 1 is pinched and the holding | maintenance part 1b is fitted to the metal plate 4 The fitting hole 4a may be fitted. If it does in this way, the holding | maintenance part 1b of the tool part 1 will be adsorb | sucked by the holder member 3 which consists of magnets, and the tool part 1 will not remove | deviate from the fitting hole 4a of the metal plate 4, and will fall.

  Further, in order to replace the tip 1a of the tool part 1 with a plus head, a minus head, a hexagon head, etc., the plus head which is the tip 1a of the tool part 1 is picked and the holding part 1b is held. The tip 1a of the tool part 1 to be pulled out and replaced from the fitting hole 4a of the metal plate 4 is picked, and the holding part 1b is fitted into the fitting hole 4a of the metal plate 4 again.

  In the offset type driver of the present invention configured as described above, the short tool portion 1 is held on the holding plate 2 by the holder member 3 so that the holder member 3 does not protrude from the holding plate 2 and cannot rotate. Therefore, in the narrow work space, the other end of the grip plate 2 is gripped by hand, and the work of screwing or loosening a screw or the like is not hindered. Furthermore, since the offset type screwdriver of the present invention makes it very easy to replace the tool portion 1, the work of screwing or loosening a screw or the like in a narrow work space can be performed more efficiently.

It is a perspective view which shows one Embodiment of the offset type driver of this invention. It is a disassembled perspective view of the offset type driver of this invention shown in FIG. It is the perspective view seen from the diagonal top of the state which removed the tool part of the offset type driver of this invention shown in FIG. It is the perspective view seen from diagonally below of the state which removed the tool part of the offset type driver of this invention shown in FIG. It is sectional drawing of the offset type driver of this invention shown in FIG. It is a perspective view which shows other embodiment of the offset type driver of this invention. It is a disassembled perspective view of the offset type driver of this invention shown in FIG. It is the perspective view seen from the diagonal top of the state which removed the tool part of the offset type driver of this invention shown in FIG. FIG. 7 is a perspective view of the offset type driver of the present invention shown in FIG. It is sectional drawing of the offset type driver of this invention shown in FIG. It is a perspective view which shows an example of the conventional offset type driver. It is a disassembled perspective view of the conventional offset type driver shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tool part 1a Tip part 1b Holding part 2 Holding plate 3 Holder member 4 Metal plate 4a Fitting hole 4b Fitting hole 5 Synthetic resin board 5a Fitting hole 5b Fitting hole 6 Small protrusion 8 Groove

Claims (1)

It consists of a tool part (1), a gripping plate (2) and a holder member (3). The tool part (1) has a short length, a tip part (1a) is provided on one end side, and a holding part ( 1b) and the holding portion (1b) is made of a material that is attracted to the magnet, and the grip plate (2) is formed by superimposing a metal plate (4) and a synthetic resin plate (5). And a fitting hole (4a) into which the holding portion (1b) of the tool portion (1) is non-rotatably fitted in one end portion of the metal plate (4), and one end of the synthetic resin plate (5). It is assumed that a fitting hole (5a) is recessed in a position corresponding to the fitting hole (4a), the holder member (3) is made of a magnet, and the holder member (3) there offset type driver that to be held fitted into the fitting hole of the resin plate (5) (5a) The holding plate (2) has a bending angle of 10 to 20 degrees at an intermediate position in the longitudinal direction, and a groove (8) is formed at the bending position of the synthetic resin plate (5) of the holding plate (2). An offset type screwdriver characterized by thinning the bending position .

Images