JP2017147028A - Battery pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery pack capable of suppressing lowering in work efficiency due to length measurement.SOLUTION: In a battery pack 1 mounted on an electric tool, scale displays 20, 30 for length measurement are provided along a longitudinal direction of an external surface of the battery pack in a mounted state on the electric tool. The scale displays 20, 30 are provided in a groove 40 formed to the external surface.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a battery pack attached to an electric tool.

  2. Description of the Related Art Conventionally, a battery pack that is mounted on an electric tool and supplies driving power is known. Such a battery pack includes a mounting portion for mounting on the electric tool, and is detachably mounted on the electric tool by the mounting portion. As a battery pack mounting form, for example, as in Patent Document 1 below, there is a form in which the battery pack is slid and a form in which it is inserted. Moreover, as an electric tool in which such a battery pack is mounted, for example, there is one called an impact driver. The impact driver is mainly used for screw tightening work (see Patent Document 2 below).

  In an operation of screwing a wood screw into wood using an impact driver, if the wood screw is too long, the tip protrudes from the back surface of the wood and may need to be corrected. If a short wood screw is used, it will not protrude, but the fixing force by the wood screw becomes weak, and the strength may be insufficient. For this reason, the operator needs to select a wood screw having an appropriate length. When measuring the length of wood screws, a ruler (scale) is generally used.

JP2015-191735A JP2015-160302A

  However, when a ruler (scale) is used to measure the length of a wood screw in screw tightening work, the operator takes out the ruler (scale) and performs measurement, so the operation interruption time is long. As a result, work efficiency is reduced.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a battery pack that can suppress a reduction in work efficiency due to length measurement.

  The battery pack according to the present invention is a battery pack attached to an electric power tool, and is characterized in that a scale display for length measurement is provided on an outer surface of the electric power tool attached to the electric power tool.

  In the battery pack according to the present invention, the scale display can be provided along the longitudinal direction of the battery pack.

  In the battery pack according to the present invention, the scale display can be provided in a groove formed on the outer surface.

  Furthermore, in the battery pack according to the present invention, the groove can be provided with a contact surface that serves as a measurement reference for the scale display.

  ADVANTAGE OF THE INVENTION According to this invention, the battery pack which can suppress the fall of the working efficiency by length measurement can be provided.

It is an appearance left side view of an electric tool equipped with a battery pack according to an embodiment of the present invention. It is a left view of the battery pack which concerns on embodiment of this invention. It is a top view of the battery pack which concerns on embodiment of this invention. It is a front view of the battery pack which concerns on embodiment of this invention. It is a bottom view of the battery pack which concerns on embodiment of this invention. It is the perspective view which looked at the battery pack which concerns on embodiment of this invention from the bottom face side. It is a principal part enlarged view of FIG. It is a bottom view of the battery pack which concerns on embodiment of this invention, Comprising: It is a figure explaining the length measurement of a wood screw.

  Hereinafter, a preferred embodiment for carrying out the present invention will be described with reference to FIGS. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. . In this specification, “front, back, left, right, top, bottom” are defined and described as shown in the figure.

  The battery pack 1 according to the present embodiment can be used by being mounted on an electric tool. For example, the battery pack 1 is used by being mounted on an impact driver 2 that is an electric tool as shown in FIG. The battery pack 1 according to the present embodiment is mounted in a slide manner, and is mounted by sliding movement in the front-rear direction.

  As shown in FIGS. 2 to 6, the battery pack 1 has a substantially rectangular parallelepiped appearance, and a mounting portion 10 for mounting on the impact driver 2 is provided on the upper portion thereof. The mounting portion 10 includes a pair of left and right rails 11 extending in the front-rear direction, a locking claw 12 that is biased upward and protrudes from the upper surface, and a pair of left and right operating portions 13 for immersing the locking claw 12. ing. When the battery pack 1 is mounted on the impact driver 2, the pair of left and right rails 11 are engaged with the lower portion of the impact driver 2 and slid back from the front position. When the latching claw 12 is pressed and retracted as the slide moves, and reaches the slide movement completion position, the latching claw 12 protrudes from the upper surface by urging and is latched to the latched portion of the impact driver 2, thereby the battery pack. 1 is slide mounted. When removing the attached battery pack 1, the pair of left and right operation units 13 are grasped from both sides with one hand and pushed inward to immerse the locking claws 12. And it can remove by moving the battery pack 1 ahead. Note that a convex portion 14 is formed on the front edge of the operation portion 13 so as to prevent the hand holding the operation portion 13 from being removed when the battery pack 1 is moved forward.

  As shown in FIG. 5, the bottom surface 15 of the battery pack 1 has a substantially rectangular shape whose longitudinal direction is the front-rear direction, and the bottom surface 15 is provided with scale displays 20 and 30 for measuring the length. . The scale display 20 and the scale display 30 are provided in parallel with a predetermined amount apart from each other along the longitudinal direction (front-rear direction) of the bottom surface 15. The scale display 20 positioned on the left is a display in mm (millimeter) units, and a numerical display 21 provided at intervals of 10 mm from 0 mm positioned on the front end side of the bottom surface 15 to 100 positioned on the rear end side, A scale line 22 having a predetermined length in the left-right direction provided at the position of the numerical display 21 is provided. The scale display 30 located on the right side is a display in inches (inch), and is a numerical display provided at intervals of 0.5 inch from 0 inch located on the front end side of the bottom surface 15 to 4.5 located on the rear end side. 31 and a scale line 32 having a predetermined length in the left-right direction provided at the position of each numerical value display 31.

  Two grooves 40 extending in the longitudinal direction (front-rear direction) are formed on the bottom surface 15 of the battery pack 1, and scale indications 20 and 30 are provided on the inner surface 41 of each groove 40. As shown well in FIGS. 4 and 7, the groove 40 has a shape recessed in an arc shape when viewed from the front, and is continuously formed from the front end to the rear end of the bottom surface 15. The scale displays 20 and 30 (numerical displays 21 and 31 and scale lines 22 and 32) are provided on the inner surface 41 of the groove 40 so as not to protrude downward from the bottom surface 15. The groove 40 also has a function as a reinforcement for increasing the rigidity of the battery pack 1.

  Next, as an example, a case in which the length of the wood screw 50 having a round head using the battery pack 1 according to the present embodiment is measured will be described with reference to FIG. FIG. 8 shows a case where the length of the wood screw 50 is measured in mm (millimeter) units, and further the case where the length of the wood screw 50 is measured as a reference. Moreover, in FIG. 8, illustration of the electric tool with which the battery pack 1 was mounted | worn is abbreviate | omitted.

  When measuring the length of the wood screw 50 using the battery pack 1 according to the present embodiment, the length is measured in mm (millimeters) by placing the wood screw 50 to be measured along the scale display 20. Can be measured. Therefore, since it is not necessary to take out the ruler (scale) at hand, the operation interruption time can be kept to a minimum even during operations such as screw tightening. Therefore, it is possible to suppress a decrease in work efficiency due to the length measurement.

  A specific procedure for measuring the length of the wood screw 50 using the battery pack 1 according to the present embodiment is provided at the position of 0 mm on the numerical display 21 serving as a measurement standard with the head of the wood screw 50 being measured. The value indicated by the tip is read from the numerical display 21 in accordance with the scale line 22. In the wood screw 50 illustrated in FIG. 8, the length can be read as 70 mm. When the head of the wood screw 50 is aligned with the scale line 22, the scale line 22 protrudes from the inner surface 41 of the groove 40. The head of the screw 50 can be brought into contact. That is, the end surface where the front and rear ends of the scale line 22 exist also has a function as a contact surface for positioning the measurement object on the measurement reference. Therefore, in the length measurement operation, if the measurement object has a shape that can be brought into contact with any one of the end faces where the scale line 22 exists, the measurement object can be easily positioned at the measurement reference position. It becomes. In the present embodiment, the end surface existing at the end in the front-rear direction of the scale line 22 has a function as a contact surface. However, the contact surface is provided in the groove 40 separately from the scale line 22. You can also.

  Further, in the state where the wood screw 50 is placed along the scale display 20, the position of the wood screw 50 is stabilized by the action of the groove 40. Therefore, measurement work becomes easy.

  Further, since the scale display 20 (numerical display 21 and scale line 22) protrudes downward from the inner surface 41 of the groove 40 in a range that does not protrude downward from the bottom surface 15, the wear of the scale display 20 due to contact is effective. Can be prevented.

  Moreover, since the scale display 20 is provided along the longitudinal direction of the battery pack 1, a longer wood screw 50 can be measured as compared with the case where the scale display 20 is provided along the short direction. Convenient.

  The above description is for measuring the length of the wood screw 50 in mm (millimeter) units. However, when the length of the wood screw 50 is measured in inches (inch), a scale is displayed. 30 will be used. In this case, the same effect as that described in the above description can be obtained.

  Note that the above description is for measuring the length of the wood screw 50 with the head of the wood screw 50 as a reference, but the tip of the wood screw 50 can also be measured with the measurement reference. In this case, the value indicated by the head is read from the numerical display 21 by aligning the tip of the wood screw 50 with the scale line 22 provided at the 0 mm position of the numerical display 21.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment.

  For example, in the above-described embodiment, the scale indications 20 and 30 and the groove 40 are provided on the bottom surface 15 of the battery pack 1, but are not limited thereto. Any outer surface other than the upper surface provided with the mounting portion 10 can be provided. That is, it can be provided on the outer surface in a state of being mounted on the power tool.

  Further, for example, in the above-described embodiment, the scale indications 20 and 30 and the groove 40 are provided along the longitudinal direction of the battery pack 1, but are not limited thereto. For example, it can also be provided along the short direction.

  Further, for example, in the above-described embodiment, the scale indications 20 and 30 are provided so as to protrude from the inner surface 41 of the groove 40, but may be provided as a recess. Further, it can be recessed directly on the bottom surface 15.

  For example, in the above-described embodiment, the scale displays 20 and 30 are in mm (millimeter) units or inch (inch) units, but are not limited thereto. For example, it can also be made into a dimension unit.

  In the above-described embodiment, the wood screw has been described as the measurement object. However, the measurement object is not limited to the wood screw.

DESCRIPTION OF SYMBOLS 1: Battery pack 2: Impact driver 10: Mounting part 11: Rail 12: Locking claw 13: Operation part 14: Convex part 15: Bottom face 20: Scale display 21: Numerical display 22: Scale line 30: Scale display 31: Numerical value Display 32: Scale line 40: Groove 41: Inner surface 50: Wood screw

Claims (4)

In battery packs attached to power tools,
A battery pack, wherein a scale display for length measurement is provided on an outer surface of the power tool when mounted on the power tool.   The battery pack according to claim 1, wherein the scale display is provided along a longitudinal direction of the battery pack.   The battery pack according to claim 1 or 2, wherein the scale display is provided in a groove formed on the outer surface. The battery pack according to claim 3, wherein the groove is provided with a contact surface that is a measurement reference for the scale display.

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