JP3107471U - Tool attachment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an operator to turn a tip tool in a desired direction while the tip tool can be driven to rotate, and to illuminate the tip tool side directed in the desired direction with an illumination unit. To provide a tool attachment that can be used.
An input shaft 14 detachably attached to a rotating portion of a power tool 11, a mounting portion 17 to which a tip tool 12 can be attached and connected to the input shaft 14, and the mounting portion 17 and the input shaft 14 are respectively rotated. The housing 18a is provided so as to be movable, and is rotatable with respect to the power tool 11 about the input shaft 14 when the mounting portion 17 (tip tool 12) is driven to rotate. An illuminating unit 19 for illuminating is provided in the housing 18a. Therefore, even if the orientation of the tip tool 12 is changed, the illumination tool 25 provided in the housing 18a automatically moves in that direction, so that the tip tool 12 side can always be illuminated and work can be performed even in a dark place. easy.
[Selection] Figure 1

Description

  The present invention relates to a tool attachment that is provided for attaching a tip tool to a power tool and includes an illumination unit for illuminating the tip tool side.

  For example, the power tool may interfere with the structure or the work space is narrow, so that the screw tightening work or the hole making work may not be performed. In that case, an angle type electric tool 1 such as an angle driver or an angle drill shown in FIG. 8 is used. This angle-type electric tool 1 has a mounting portion that can mount a tip tool (not shown) such as a driver bit (for example, plus bit or minus bit) or a drill in a direction substantially perpendicular to the axial direction of the electric tool 1. 2. By using this angle type electric power tool 1, a screw tightening operation or the like can be easily performed at a place where the structure becomes obstructive. However, places where the structure gets in the way are sometimes dark and difficult to work.

  Therefore, there is provided an angled electric tool 4 with an illuminating unit provided with a light adapter 3 in the angled electric tool 1 shown in FIG. 8 (see, for example, Patent Document 1). As shown in FIG. 9, the electric power tool 4 with an illuminating unit is provided with a light adapter 3 between a main body housing 5 and a head housing 6, and an LED 7 as a light source is disposed in the light adapter 3. Has been. Since the LED 7 can illuminate a screw tightening portion, a perforated portion, or the like, the operation can be facilitated.

According to the angle type electric tool 4 with the illumination unit shown in FIG. 9, the operator attaches the head housing (mounting unit 2) 6 to the main body housing 5 before working in accordance with a work situation such as a narrow work space. The tip tool attached to the mounting portion 2 can be directed in a desired direction by rotating it by a desired angle around the motor rotation shaft 8 of the electric tool 4. Thus, when changing the orientation of the head housing 6, first, the mounting bolt (see FIG. 8) 9 is removed, and the head housing 6 and the light adapter 3 are rotated by a desired angle with respect to the main body housing 5. . Then, the head housing 6 and the light adapter 3 are fastened with mounting bolts 9 and fixed to the main body housing 5.
JP 2002-154065 A

  However, in the conventional angled electric tool 4 with an illumination part shown in FIG. 9, when the head housing 6 is rotated by a desired angle in order to make the mounting part 2 in a desired direction, the mounting bolt 9 is removed, Since it is necessary to tighten, it takes time and work time is prolonged accordingly.

  Moreover, the tool attachment 10 shown in FIG. 10 conventionally exists. As shown in the figure, the tool attachment 10 is attached to an electric tool 11 and can rotate a tip tool 12 such as a bit attached to the attachment 10. Then, in such a state that the tip tool 12 can be rotationally driven as described above, the operator attaches the tool attachment 10 with the input shaft 14 as the center by operating the handle 13 with the hand 13. Can be rotated. As a result, the tip tool 12 can be easily directed in a desired direction in accordance with the situation where the work space is small, etc., so that the screw can be easily tightened even in a place where the work is difficult.

  However, in the tool attachment 10 shown in FIG. 10, when the light adapter 3 shown in FIG. 9 is attached to the electric tool 11, the light adapter 3 is sandwiched between the tool attachment 10 and the electric tool 11. It is necessary to tighten and fix with the mounting bolt 9. If it does in this way, like the angle type electric tool 4 with an illumination part shown in FIG. 9, when orienting the tool attachment 10 to a desired direction, it is necessary to remove the mounting bolt 9 or to tighten, and an effort is required. It takes.

  The present invention has been made to solve the above-described problems, and in a state where the tip tool can be rotationally driven, the operator can point the tip tool in a desired direction, An object of the present invention is to provide a tool attachment capable of illuminating a tip tool side directed in a desired direction with an illumination unit.

  A tool attachment according to the present invention includes an input unit that is detachably attached to a rotating part of a power tool, a mounting part to which a tip tool can be attached and the rotation of the input part is transmitted, the mounting part, and the input And a housing that is rotatable with respect to the power tool about the input unit when the mounting unit is rotationally driven, and the input unit and the mounting unit In the attachment for a tool in which the respective rotation axes form a predetermined angle with each other, an illuminating unit that illuminates the tip tool side is provided in the housing.

  According to this device, the tool attachment can be attached to the rotating portion of the power tool, and the mounting portion can be driven to rotate by driving the power tool in this attached state. When the mounting portion rotates, a tip tool (driver bit, drill, etc.) mounted on the mounting portion can be rotated. As a result, a screw tightening operation and a hole drilling operation can be performed, and a screw can be loosened. In addition, the operator can easily swing the tool attachment around the input shaft with respect to the power tool in a state where the tip tool can be rotated according to the situation where the work space is small. (Rotate) to point the tip tool in the desired direction. And since the illumination part was provided in the housing of this tool attachment, the direction of an illumination part is also changed with the change of the direction of a front-end tool. Therefore, the side of the tip tool whose direction has been changed can be illuminated by the illumination unit.

  And in the tool attachment which concerns on this invention, you may provide the power transmission part which transmits rotation of the said input part to the said mounting part. By adopting a configuration in which the power transmission unit is provided in this way, the angle formed by the rotation axis of the input shaft attached to the power tool and the rotation axis of the mounting unit on which the tip tool is mounted becomes a desired angle. Can be manufactured.

  In the tool attachment according to the present invention, the rotation axis of the mounting portion may be substantially orthogonal to the rotation axis of the input portion. If it does in this way, even if a structure exists in the screw direction of a screw fastening part and a power tool cannot be arranged, for example, it can avoid effectively and a screw fastening operation etc. can be performed so that a structure may not become obstructive.

  Furthermore, in the tool attachment according to the present invention, the illumination unit may be provided integrally with the housing. If it does in this way, compared with the case where the housing of a tool attachment and the illumination part are manufactured separately, manufacturing cost can be reduced.

  And in the attachment for tools which concerns on this invention, you may form the said illumination part so that attachment with respect to the said housing is possible. If it does in this way, an illumination part can be retrofitted as needed, for example with respect to the attachment for tools in which the illumination part is not provided.

  And in the attachment for tools which concerns on this invention, it is good to provide a power supply part in the said illumination part. If it does in this way, it is not necessary to connect an illumination part and a power tool with an electric power line, and to take in electric power of an illumination part from the power tool side. Therefore, the tool attachment can be freely rotated about the input shaft to change the direction of the tip tool, and the work such as screw tightening can be facilitated.

  According to the tool attachment according to the present invention, the operator can turn the tip tool in a desired direction in a state where the tip tool can be rotationally driven. Can work. And even if an operator changes the direction of a tip tool, since the direction of the illumination part provided in the housing is also changed according to it, the tip tool side can always be illuminated with an illumination part. Therefore, even in a dark place, operations such as screw tightening can be performed easily and safely.

  In addition, since the illumination unit is provided in the tool attachment, there is a low possibility that an obstacle that blocks light is interposed between the illumination unit and the tip tool, and thus the tip tool side can be reliably illuminated by the illumination unit. .

  Hereinafter, an embodiment of a tool attachment according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the tool attachment 15 can be used by attaching the input shaft 14 provided on the attachment 15 to a rotating portion (not shown) of the power tool 11. By driving in the forward and reverse directions, the mounting portion 17 provided on the attachment 15 can be driven to rotate in each desired direction. When the mounting portion 17 rotates, the tip tool (driver bit, drill, etc.) 12 mounted on the mounting portion 17 can be driven to rotate in the same direction. As a result, a screw tightening operation and a hole drilling operation can be performed, and a screw can be loosened.

    However, the tool attachment 15 of this embodiment can be mounted with, for example, a driver bit (hereinafter also simply referred to as “bit”) as the tip tool 12. Driver bits include a plus bit and a minus bit. The power tool 11 is, for example, an electric tool, and is a so-called impact driver. The power source of the power tool 11 is, for example, a rechargeable battery. This battery is accommodated in the power tool 11.

  As shown in FIG. 2, the tool attachment 15 includes an attachment body 18 and an illumination unit 19. A handle 13 is detachably attached to the tool attachment 15.

  As shown in FIGS. 1 to 5, the attachment main body 18 includes an input shaft 14, a power transmission portion (not shown), a mounting portion 17, and a housing 18 a. The housing 18a is an L-shaped tubular body, and includes an input-side opening 18b that opens in the horizontal direction and an output-side opening 18c that opens vertically downward in FIG. As for the input side opening part 18b, the input shaft 14 protrudes in the horizontal direction from the inner side.

  As shown in FIG. 1, the input shaft 14 has a hexagonal cross-sectional shape, is detachably attached to the rotating portion of the power tool 11, and is driven to rotate as the rotating portion rotates. The input side opening 18b is closed by a sleeve 20 shown in FIG. The sleeve 20 is fastened to the housing 18a with a snap ring (see FIG. 5B).

  As shown in FIG. 1, the mounting portion 17 projects vertically downward from the inside of the output side opening 18c, and is formed so that the tip tool 12 can be detachably mounted. When the mounting portion 17 is rotationally driven, the tip tool 12 mounted on the mounting portion 17 rotates in the same direction.

  The power transmission part (not shown) is for transmitting the rotational power of the input shaft 14 to the mounting part 17, and is housed in the housing 18a. For example, the first bevel gear and the second bevel gear And a bevel gear. The first and second bevel gears are rotatably provided in the housing 18a and mesh with each other. The input shaft 14 is connected to the first bevel gear, and the mounting portion 17 is connected to the second bevel gear.

  5A and 5B, handle mounting female screws (not shown) are provided on the left and right side surfaces and the upper surface of the housing 18a shown in FIGS. , 22 are mounted. Each of the three handle mounting female screws can be mounted by screwing the handle 13. The handle 13 can be attached to a desired handle mounting female screw so that the work can be easily performed, for example, at the time of screw tightening work or the like.

  The illumination unit 19 can be detachably attached to the attachment main body 18 shown in FIG. 1 and illuminates the tip tool (for example, bit) 12 side attached to the attachment unit 17 in a state of being attached to the attachment main body 18. It is something that can be done. As shown in FIGS. 1, 6, and 7, the illumination unit 19 includes an upper exterior part 23, a lower exterior part 24, and a lighting device 25. The upper exterior part 23 and the lower exterior part 24 are Are bound to each other.

  The lower exterior part 24 is provided with the outer wall part 24a and the inner cylinder part 24b, as shown in FIG.6 and FIG.7. The outer wall portion 24a has a substantially U-shaped cross section, and is formed so that the outer surface thereof is substantially aligned with the outer surface of the housing 18a of the attachment body 18 and is continuous. The inner cylinder part 24b is formed in a taper cylinder shape as shown in the drawings, and is provided inside the outer wall part 24a. And the inner peripheral surface of this inner cylinder part 24b is formed in the taper shape corresponding to the outer peripheral surface of the sleeve 20. FIG.

  As shown in FIGS. 6 and 7A and 7B, the illuminator 25 is provided on the inner lower portion of the lower exterior portion 24. The illumination tool 25 is, for example, an LED (light emitting diode), and batteries (power supply units) 26 and 26 are electrically connected via a circuit board (not shown). The batteries 26 and 26 and the circuit board are disposed in the illumination unit 19.

  As shown in FIGS. 6 and 7, the upper exterior portion 23 has a substantially U-shaped cross section, and a recess 23 a is formed on the surface of the tip portion. A small hole 23b is formed at the bottom of the recess 23a. As shown in FIG. 2, the recess 23 a is sized to allow insertion of a reduced diameter portion 13 a formed at one end of the handle 13, and the small hole 23 b projects from one end of the handle 13. It is the magnitude | size which can penetrate the male screw part 13b which is.

  When the illumination unit 19 is attached to the attachment body 18, as shown in FIG. 2, the input shaft 14 is inserted into the inner cylinder part 24b and the sleeve 20 is fitted into the inner cylinder part 24b. Then, the male screw portion 13b of the handle 13 may be screwed and tightened to a handle mounting female screw formed on the upper surface of the housing 18a, for example. When the handle 13 is attached to the handle mounting female screw formed on the side surface of the housing 18a, the cap screw 22 screwed to the handle mounting female screw to which the handle 13 is to be attached is removed, and the handle 13 can be attached to the female screw. That's fine. Then, the cap screw 22 may be attached to the recess 23a provided in the upper exterior portion 23, and the cap screw 22 may be screwed into the corresponding handle mounting female screw. With this cap screw 22, the illumination unit 19 can be fixedly attached to the attachment body 18.

  Further, as shown in FIG. 2, a switch 27 for switching on / off the illumination tool 25 is provided at the right end of the illumination unit 19. By operating the switch 27, the lighting device 25 can be turned on and off.

  According to the tool attachment 15 configured as described above, as shown in FIG. 1, by attaching the input shaft 14 of the attachment 15 to a rotating portion (not shown) of the power tool 11, the attachment 15 is attached. It can be attached to the power tool 11. And in this attached state, the mounting part 17 can be rotationally driven by driving the power tool 11. When the mounting portion 17 rotates, the tip tool 12 such as a driver bit mounted on the mounting portion 17 can be rotated. Thereby, for example, a screw tightening operation or a screw can be loosened. However, when the rotating part of the power tool 11, the input shaft 14, and the tip tool 12 are rotationally driven, the operator holds the handle 13 so that the housing 18 a of the attachment 15 does not rotate around the input shaft 14. It is necessary to hold and stop. The attachment 15 rotates because a frictional resistance is generated between the input shaft 14, the first and second bevel gears, the mounting portion 17, and the housing 18a.

  In addition, as shown in FIG. 1, the operator can hold the handle 13 with his / her hand and operate the tool attachment 15 with the input shaft in a state where the tip tool 12 can be rotationally driven. 14 can be easily swung (rotated) with respect to the power tool 11. As a result, the tool attachment 15 can be freely swung by a desired angle and the tip tool 12 can be directed in a desired direction in accordance with a situation such as a small work space. Therefore, operations such as screw tightening can be easily performed even in places where it is difficult to perform operations.

    And since the illumination part 19 was provided in the housing 18a of this tool attachment 15, even if an operator rocks the tip tool 12 centering on the input shaft 14, and changes the direction freely, according to it Since the direction of the illumination part 19 provided in the housing 18a is also changed, the tip tool 12 side can always be illuminated with the illumination tool 25. Therefore, it is possible to easily and safely perform screw tightening and the like even in a dark place.

  Further, as shown in FIG. 1, since the illumination unit 19 is provided in the tool attachment 15, there is a low possibility that an obstacle that blocks light is interposed between the illumination unit 19 and the tip tool 12. The portion 19 can reliably illuminate the end tool 12 side.

  And since this tool attachment 15 is provided with the power transmission part formed by the 1st and 2nd bevel gears, the angle which each axis of rotation of this 1st and 2nd bevel gears intersects, The desired angle can be set. Thereby, this attachment 15 can be manufactured so that the angle formed by the rotation axis of the input shaft 14 and the rotation axis of the mounting portion 17 to which the tip tool 12 is mounted becomes a desired angle. That is, the tool attachment 15 can be manufactured so as to be easily operated according to the application.

  If the mounting portion 17 of the tool attachment 15 and the input shaft 14 are set so as to be substantially orthogonal to each other, for example, even if the structure exists in the screw direction of the screw tightening portion and the power tool 11 cannot be disposed, the structure It can be effectively avoided so that things do not get in the way, and operations such as screw tightening can be performed.

  Further, as shown in FIG. 1, the illumination unit 19 is configured to be detachably attached to the attachment main body 18, so that, for example, when the attachment main body 18 and the illumination unit 19 are sold separately, the attachment main body 18. However, the illumination unit 19 can be retrofitted as necessary.

  Further, as shown in FIG. 7 (a), since the lighting unit 19 has batteries (power supply units) 26 and 26 stored therein, the lighting unit 19 and the power tool 11 are connected by a power line to illuminate. It is not necessary to take in the electric power of the part 19 from the battery provided in the power tool 11. Therefore, the tool attachment 15 can be freely rotated about the input shaft 14 to change the direction of the tip tool 12, and the work such as screw tightening can be facilitated. And it is not necessary to connect the illumination part 19 and the power tool 11 with a power line, and it does not take time and effort.

  However, in the above embodiment, as shown in FIG. 1, the attachment main body 18 and the illumination unit 19 are separately formed, but instead of this, both may be integrally formed. If it does in this way, compared with the case where both are manufactured separately, manufacturing cost can be reduced.

  In the above embodiment, as shown in FIG. 1, the driver bit is mounted on the mounting portion 17 as the tip tool 12. Instead, another tip tool such as a drill is mounted on the mounting portion. It may be a thing. Thereby, operations such as drilling can be performed.

  Moreover, in the said embodiment, although LED was used as the lighting fixture 25, it may replace with this and may use a light bulb.

  As described above, the tool attachment according to the present invention allows the operator to orient the tip tool in a desired direction in a state in which the tip tool can be driven to rotate. It has an excellent effect that the illumination tool can illuminate the tip tool side, and is suitable for application to such a tool attachment.

It is a front view which shows the state which attached the attachment for tools which concerns on embodiment of this invention to the power tool. It is a front view showing the state where the handle was attached to the attachment concerning the embodiment. It is a perspective view showing the attachment concerning the embodiment. It is a front view showing the attachment concerning the embodiment. The same attachment of the embodiment is shown, (a) is the left side view, (b) is the right side view. It is a front view which shows the illumination part provided in the attachment which concerns on the same embodiment. The illumination part provided in the attachment which concerns on the embodiment is shown, (a) is the left view, (b) is the right view, (c) is the top view. It is a front view which shows the conventional angle type electric tool. It is a partial expanded sectional view which shows the angle type electric tool with the conventional illumination part. It is a front view which shows the state which attached the conventional tool attachment to the electric tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Electric tool 12 Tip tool 13 Handle 13a Diameter reduction part 13b Handle male thread part 14 Input shaft 15 Tool attachment 17 Mounting part 18 Attachment body 18a Housing 19 Illumination part 20 Sleeve 21 Snap ring 22 Cap screw 23 Upper exterior part 23a Recessed part 23b Small hole 24 Lower exterior part 24a Outer wall part 24b Inner tube part 25 Illuminator 26 Battery 27 Switch

Claims (6)

An input part that is detachably attached to the rotating part of the power tool, a mounting part to which a tip tool can be attached and to which rotation of the input part is transmitted, and the mounting part and the input part are provided rotatably. A housing that is rotatable with respect to the power tool about the input portion when the mounting portion is rotationally driven, and the rotation axes of the input portion and the mounting portion are at a predetermined angle with respect to each other. In the tool attachment that
An attachment for a tool, wherein an illuminating section for illuminating the tip tool side is provided in the housing.   The tool attachment according to claim 1, further comprising a power transmission unit configured to transmit rotation of the input unit to the mounting unit.   The tool attachment according to claim 1 or 2, wherein a rotation axis of the mounting portion is substantially orthogonal to a rotation axis of the input portion.   The tool attachment according to any one of claims 1 to 3, wherein the illumination unit is provided integrally with the housing.   The tool attachment according to any one of claims 1 to 3, wherein the illuminating unit is formed to be attachable to the housing.   The tool attachment according to any one of claims 1 to 5, wherein a power supply unit is provided in the illumination unit.

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