JP3189469U - Double-ended screwdriver bit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double-headed driver bit which can easily distinguish left and right. SOLUTION: In a double-headed driver bit having tip portions formed on the left and right sides, right-hand torsion portions 3a and left-side torsion portions 3b, which are smaller than the diameter of the circumscribed circle of the cross section of the central shaft portion, are formed at both left and right ends of the central shaft portion 2, respectively. The right tip side of the right tip side has a right ball groove portion 6a sandwiched between the right center side hexagonal portion 4a and the right tip side hexagonal portion 5a, and the right tip side of the right tip side hexagonal portion is right. It has a tip portion 1a, and has a left ball groove portion 6b sandwiched between a left center side hexagonal portion 4b and a left tip side hexagonal portion 5b on the left tip side of the left tip side torsion portion, and has a left tip portion of the left tip side hexagonal portion. It has a left tip portion 1b on the side, and coloring 7 is applied to either the right torsion portion or the left torsion portion. [Selection diagram] Fig. 1

Description

  The present invention relates to a double-ended driver bit in which both ends of a main body are provided with tip portions corresponding to screw grooves.

  A ratchet driver or an electric or pneumatic rotary tool is used as a tool for screw tightening and loosening. Since these tools have an expensive main body, various screwdriver bits are detachably attached to one main body, and various screws are tightened. In this driver bit, there are a driver bit called a so-called single bit provided with a tip at only one end of the main body and a double-ended driver bit provided with a tip at both ends of the main body (for example, Patent Document 1). Of these, in the case of a double-ended screwdriver bit, first, one tip portion is used, and when this tip portion is worn due to a screw tightening operation, the other tip portion is used by being replaced with a rotary tool. Further, in the case of a double-ended screwdriver bit having a different shape and size at the left and right tip portions, it is necessary to attach it to the rotary tool as appropriate so that the tip portion to be used can be used.

  However, the tip of the double-ended screwdriver bit is thin, and it has been difficult to confirm the wear state of the tip and the difference in size by visually observing the tip at the work site.

JP 2005-59142 A

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a double-ended driver bit that allows easy identification of the left and right of the double-ended driver bit.

  In order to achieve the above-described object, the double-ended screwdriver bit according to the present invention is a double-ended screwdriver bit in which tip portions are formed on the left and right sides. A right torsion part and a left torsion part smaller than the diameter, and a right ball groove part sandwiched between a right center side hexagon part and a right tip side hexagon part on the right tip side of the right torsion part, The right tip side of the right tip side hexagonal portion has a right tip portion, and the left tip side of the left torsion portion has a left ball groove portion sandwiched between the left center side hexagon portion and the left tip side hexagon portion, A left tip portion is provided on the left tip side of the left tip side hexagonal portion, and one of the right torsion portion and the left torsion portion is colored.

  Further, in the double-ended driver bit formed with the tip portion on the left and right, the left and right ends of the central shaft portion respectively have a right torsion portion and a left torsion portion smaller than the diameter of the circumscribed circle of the cross section of the central shaft portion, On the right tip side of the right torsion portion, there is a right ball groove portion sandwiched between a right center side hexagon portion and a right tip side hexagon portion, and a right tip portion on the right tip side of the right tip side hexagon portion. The left torsion part has a left ball groove part sandwiched between a left center side hexagon part and a left tip side hexagon part, and a left tip part on the left tip side of the left tip side hexagon part. The right side torsion part and the left side torsion part are colored differently.

  Also, the left and right tip portions may have different dimensions.

  The left and right tip portions may have different shapes.

  As described above, according to the double-ended driver bit according to the present invention, the left and right of the double-ended driver bit can be easily identified by coloring the torsion portion.

1 is a perspective view showing a double-ended driver bit according to an embodiment of the present invention. It is a front view which shows the double-headed driver bit which concerns on one Embodiment of this invention. It is a front view which shows an example of the double-headed driver bit from which the dimension of a right-and-left front-end | tip part differs. It is a front view which shows an example in which coloring is given only to one torsion part in the double-headed driver bit from which the shape of a right-and-left tip part differs. It is a front view which shows an example in which different coloring is given to the right and left torsion parts in the double-ended driver bit in which the shapes of the left and right tip parts are different.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments.

  The double-ended screwdriver bit according to the present invention is detachably attached to a ratchet driver, an electric or pneumatic rotary tool, etc., and transmits rotational torque of these tools to tighten and loosen various screws.

  FIG. 1 is a perspective view of a double-ended driver bit according to an embodiment of the present invention. FIG. 2 is a front view of a double-ended driver bit according to an embodiment of the present invention.

  This double-ended screwdriver bit is a double-ended screwdriver bit having tip portions 1 (1a, 1b) formed on the left and right sides, and circumscribed circles of the cross section of the central shaft portion 2 at the left and right ends of the central shaft portion 2 having a hexagonal cross section. A right torsion portion 3a and a left torsion portion 3b smaller than the diameter of the right torsion portion 3a. The right torsion portion 3a has a right ball groove portion sandwiched between a right center side hexagon portion 4a and a right tip side hexagon portion 5a. 6a, a right tip 1a on the right tip of the right tip hexagon 5a, and a left center hexagon 4b and a left tip hexagon 5b on the left tip of the left torsion 3b. The left end portion 1b is provided on the left end side of the left end side hexagonal portion 5b. And coloring 7 is given to either the right torsion part 3a or the left torsion part 3b. The double-ended driver bits shown in FIGS. 1 and 2 have the same shape at the left and right tip portions 1 (1a, 1b) (in this specification, the tip portion 1 (1a, 1b) has the same shape and the same shape with different dimensions) The tip 1 (1a, 1b) and the tip 1 (1a, 1b) having the same dimensions, and a substantially symmetrical shape with respect to the virtual plane that bisects the left and right. doing.

  The tip portion 1 (1a, 1b) has a shape that fits into a screw hole provided in a screw head to be tightened or loosened. The left and right tip portions 1 (1a, 1b) shown in FIG. 1 and FIG. 2 are formed with a plus bit of a cruciform blade that fits into a cruciform groove provided on the screw head. The tip portion 1 (1a, 1b) of the double-ended driver bit according to the present embodiment is a plus bit with a cross-shaped blade, but is not limited to this, and the groove of the screw head is a slot (minus screw). , H-shaped holes, H-shaped (Phillips type), hexagonal holes, square holes, and other shapes corresponding to various screws.

  The torsion part 3 (3a, 3b) absorbs the impact generated when the screw is tightened and prevents the double-ended driver bit from being broken by the impact during tightening. The torsion portions 3 (3a, 3b) of the double-ended driver bit according to the present embodiment are respectively provided on the left and right ends of the central shaft portion 2, and the diameter (diagonal length) of the circumscribed circle of the central shaft portion 2 having a hexagonal cross section. Has a smaller cross-sectional diameter.

  The right ball groove 6a sandwiched between the right center hexagon 4a and the right tip hexagon 5a, and the left ball groove 6b sandwiched between the left center hexagon 4b and left tip hexagon 5b are formed in the circumferential direction. This is an annular groove, which is a portion that is fitted into a steel ball that is disposed in the anvil (bit insertion port) of the rotary tool so as to face the radial direction, and the double-ended screwdriver bit is connected to the rotary tool.

  The torsion part 3 (3a, 3b) is colored 7 by applying a paint that can be applied to metal or by performing plating or the like. The coloring 7 does not need to be applied to the entire torsion part 3 (3a, 3b), and the coloring 7 may be applied to a part of the torsion part 3 (3a, 3b).

  As described above, since the coloring 7 is applied to either one of the left and right torsion portions 3 (3a, 3b), the left and right identification of the double-ended driver bit is facilitated. Therefore, for example, if the user decides to use the tip portion 1 (1a, 1b) whose color is applied to the torsion portion 3 (3a, 3b) first, the tip portion 1 (1a, 1b) When 1b) is worn, the next time the double-ended screwdriver bit is attached to the rotary tool, the left and right tip parts 1 (1a, 1b) are not visually confirmed and the torsion parts 3 (3a, 3b) are not confirmed. What is necessary is just to attach so that the front-end | tip part 1 (1a, 1b) to which the coloring 7 is not given can be used.

  Also, the left and right torsion parts 3 (3a, 3b) can be colored differently to facilitate the recognition of the left and right tip parts 1 (1a, 1b) (not shown). Specifically, for example, when the right torsion part 3a is colored 7 in red and the left torsion part 3b is colored 7 in blue, the torsion part 3 (3a, 3a, 3b) If the tip 1 (1a, 1b) on the side is determined to be used, when the tip 1 (1a, 1b) is worn away, the next time the double-ended screwdriver bit is attached to the rotary tool, The tip portion 1 (1a, 1b) whose torsion portion 3 (3a, 3b) is colored 7 can be used without visually confirming the wear state by visually recognizing 1 (1a, 1b). It only has to be attached.

  Further, since the torsion part 3 (3a, 3b) colored 7 is smaller than the diameter of the circumscribed circle of the cross section of the central shaft part 2, when the double-ended driver bit is stored in the storage case, other driver bits It can be stored without contact with tools, etc. Also, even if the driver bit is placed somewhere during the work, it does not contact the placement surface, so the colored part 7 is painted It can prevent peeling.

  The double-ended driver bit shown in FIG. 3 has the same basic configuration as the double-ended driver bit shown in FIGS.

  In the double-ended driver bit shown in FIG. 3, the left and right tip portions 1 (1a, 1b) have the same shape, but have different dimensions. The right torsion part 3a and the left torsion part 3b of this double-ended driver bit are colored 7 differently. Specifically, the size of the Phillips screwdriver is JIS standard B4633 No. 1 plus driver in blue and JIS Standard B4633 No. 2 red in advance. When the part 1 (1a, 1b) is a No. 1 Phillips screwdriver, the right torsion part 3a is colored 7 in blue, and the left end 1 (1a, 1b) is a No. 2 plus driver If the left torsion portion 3b is colored 7 in red, the dimensions of the left and right tip portions 1 (1a, 1b) can be easily recognized without checking the tip portions 1 (1a, 1b) of the double-ended driver bits. .

  In the case of a double-ended driver bit having different dimensions of the left and right tip portions 1 (1a, 1b), either one of the torsion portions 3 (3a, 3b) may be colored 7 (not shown). . In this case, for example, if it is determined in advance that the torsion portion 3 (3a, 3b) on the side of the large-sized tip portion 1 (1a, 1b) is colored 7, the tip portion 1 ( The dimensions of the left and right tip portions 1 (1a, 1b) can be easily recognized without checking 1a, 1b).

  The double-ended screwdriver bits shown in FIGS. 4 and 5 have the same basic configuration as the double-ended screwdriver bits shown in FIGS.

  This double-ended screwdriver bit is different in the shape of the left and right tip portions 1 (1a, 1b). The right tip 1a of the double-ended driver bit shown in FIGS. 4 and 5 is a plus driver and the left tip 1b is a minus driver, but the combination of the tips 1 (1a, 1b) is not limited to these, Shaped tip portions 1 (1a, 1b) can be combined.

  The double-ended driver bit shown in FIG. 4 is colored 7 only on one torsion part 3 (3a, 3b). Specifically, coloring 7 is given only to the right torsion part 3a. Therefore, if it is determined in advance that the tip portion 1 (1a, 1b) is colored 7 on the torsion portion 3 (3a, 3b) on the plus driver side, the tip portion 1 (1a, 1b) of the double-ended driver bit. ), The shape of the left and right tip portions 1 (1a, 1b) can be easily recognized.

  The double-ended driver bit shown in FIG. 5 is provided with different coloring 7 on the left and right torsion portions 3 (3a, 3b). In this case, for example, the shape of the tip 1 (1a, 1b) is red when the tip 1 (1a, 1b) is a plus driver and blue when the tip 1 (1a, 1b) is a minus driver. Different colors are determined in advance, and the torsion part 3 (3a, 3b) on the tip part 1 (1a, 1b) side is colored 7 according to the shape of the tip part 1 (1a, 1b). The shape of the tip 1 (1a, 1b) can be easily recognized without confirming the tip 1 (1a, 1b) of the double-ended driver bit.

  The double-ended screwdriver bit of the present invention has a right torsion part 3a and a left torsion part 3b that are smaller than the diameter of the circumscribed circle of the cross section of the central shaft part 2 on the left and right, respectively. By applying coloring 7 to the part 3 (3a, 3b) or different colorings 7 on the left and right sides, the worn tip 1 (1a) can be obtained without checking the tip 1 (1a, 1b) of the double-ended driver bit. , 1b) and the shape or size of the tip 1 (1a, 1b) can be easily recognized, and the torsion 3 (3a, 3b) is prevented from being peeled off by the colored portion 7 applied. it can.

  As described above, the preferred embodiments of the present invention have been described with reference to the drawings. However, various additions, modifications, or deletions can be made without departing from the spirit of the present invention. Therefore, such a thing is also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Tip part 1a Right tip part 1b Left tip part 2 Center shaft part 3 Torsion part 3a Right torsion part 3b Left torsion part 4a Right center side hexagon part 4b Left center side hexagon part 5a Right tip side hexagon part 5b Left tip side hexagon part 6a Right side ball groove part 6b Left side ball groove part 7 Colored part

Claims (4)

In the double-headed driver bit with the tip formed on the left and right,
At the left and right ends of the central shaft portion, each has a right torsion portion and a left torsion portion smaller than the diameter of the circumscribed circle of the cross section of the central shaft portion,
On the right tip side of the right torsion part, it has a right ball groove part sandwiched between a right center side hexagon part and a right tip side hexagon part,
While having a right tip portion on the right tip side of the right tip side hexagonal portion,
The left tip side of the left torsion part has a left ball groove part sandwiched between a left center side hexagon part and a left tip side hexagon part,
It has a left tip on the left tip side of the left tip side hexagon,
A double-ended driver bit in which either one of the right torsion part and the left torsion part is colored. In the double-headed driver bit with the tip formed on the left and right,
At the left and right ends of the central shaft portion, each has a right torsion portion and a left torsion portion smaller than the diameter of the circumscribed circle of the cross section of the central shaft portion,
On the right tip side of the right torsion part, it has a right ball groove part sandwiched between a right center side hexagon part and a right tip side hexagon part,
While having a right tip portion on the right tip side of the right tip side hexagonal portion,
The left tip side of the left torsion part has a left ball groove part sandwiched between a left center side hexagon part and a left tip side hexagon part,
It has a left tip on the left tip side of the left tip side hexagon,
A double-ended driver bit in which the right torsion part and the left torsion part are colored differently.   The double-ended screwdriver bit according to claim 1 or 2, wherein the left and right tip portions have different dimensions.   The double-ended screwdriver bit according to claim 1 or 2, wherein the shapes of the left and right tip portions are different.

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