WO2017090376A1

WO2017090376A1 - Electrical device

Info

Publication number: WO2017090376A1
Application number: PCT/JP2016/082060
Authority: WO
Inventors: 寺西　卓也
Original assignee: 日立工機株式会社
Priority date: 2015-11-27
Filing date: 2016-10-28
Publication date: 2017-06-01

Abstract

In order to provide an electrical device having high usability in comparison with those thus far, an electric tool 1 is provided with a housing 2, a handle part 3 provided rotatably on the housing 2 via a rotational axis 10 and a hook (hanging tool) 5 provided at an end part of the handle part 3. In a retracted position, the hook 5 surrounds an end side of the handle part 3 in a direction around an axis of the handle part 3. A corner section of a battery pack 30 engages with the hook 5 so as to restrict rotation of the hook 5 from the retracted position toward a use position.

Description

Electrical equipment

The present invention relates to various portable electric tools, cleaners, work lights, and other electric devices.

Patent Document 1 below discloses a foldable electric tool capable of rotating a handle portion with respect to a housing. When using a foldable electric tool, the user performs the work with the main body in a straight or gun type depending on the work application. The method of gripping the handle portion varies depending on the form of the main body. Moreover, even if the form of the main body is the same, the gripping method of the handle part may change depending on the work form.

JP 2014-65129 A

The electric tool of Patent Document 1 cannot be suspended when not in use, which is inconvenient. In addition, when the electric tool is provided with a hanging hook, it is desirable that the influence on the grip of the handle portion is small. The same applies to electrical devices other than power tools such as cleaners and work lights.

The present invention has been made in view of such a situation, and an object of the present invention is to provide an electric device that is more convenient than conventional ones.

Another object of the present invention is to provide an electric device that has a small influence on the grip of the handle portion while having a hook.

The first aspect of the present invention is an electrical device. The electric device includes a housing, a handle portion that is rotatably provided on the housing, and a hook that is provided on a terminal portion of the handle portion.

The hook may be rotatably provided on the handle portion.

The hook may surround the distal end side of the handle portion in a direction around the axis of the handle portion in the retracted position.

The second aspect of the present invention is an electrical device. The electrical apparatus includes a handle portion and a hook that is rotatably provided at a distal end portion of the handle portion, and the hook has a distal end side of the handle portion around an axis of the handle portion in a retracted position. Enclose in the direction.

The end corner of the handle or the end of the battery pack provided at the end of the handle engages with the hook so as to restrict the hook from rotating from the retracted position to the use position. May be combined.

The hook has a rotation fulcrum portion connected to the handle portion, and a free end portion on the opposite side of the rotation fulcrum portion across a central axis of the handle portion, and the free end portion is You may engage a terminal corner | angular part or the said corner | angular part.

The battery pack includes a battery pack that is detachably provided at an end portion of the handle portion, and the hook is bent when viewed from a direction perpendicular to the axis of the handle portion so as not to overlap the latch operation portion of the battery pack at the retracted position. May be.

In the retracted position, the hook includes a rotation fulcrum portion connected to the handle portion, and a free end portion on the opposite side of the rotation fulcrum portion across the central axis of the handle portion. It may be displaced in the axial direction.

The handle portion includes a switch operation portion that operates to move and stop the electric device, and a hole portion that rotatably supports the hook, and the switch operation portion and the hole portion include the handle portion. The positions around the axis may be equal to each other.

The hook may be made of metal.

The hook may be formed in a ring shape or a loop shape.

The handle portion has a hole portion that rotatably supports the hook, and the hook connects a pair of rotation fulcrum portions connected to the hole portion and the pair of rotation fulcrum portions. And the hook may be configured to be attachable to and detachable from the hole portion by pushing the pair of pivot fulcrum portions away from each other.

The battery may operate as a power source.

It should be noted that any combination of the above-described constituent elements, and those obtained by converting the expression of the present invention between methods and systems are also effective as aspects of the present invention.

According to the first aspect of the present invention, it is possible to provide an electric device that is more convenient than conventional ones.

According to the second aspect of the present invention, it is possible to provide an electric device having a small influence on the grip of the handle portion while being provided with a hook.

1 is a side sectional view of a power tool 1 according to an embodiment of the present invention. The side view in the case of using the electric tool 1 with a gun type form. FIG. 3 is an A arrow view of FIG. 2. The side view in the case of using the electric tool 1 in a straight form and applying thrust in the horizontal direction. B arrow view of FIG. The side view in the case of using the electric tool 1 in a straight form and applying thrust in the vertical direction. The enlarged side view of the terminal part vicinity of the handle | steering-wheel part 3 of the electric tool 1. FIG. CC sectional drawing of FIG. Sectional drawing of the state which pushed and expanded the hook 5 in FIG. Explanatory drawing of rotation control of the hook 5 by the battery pack 30. FIG. The expanded sectional side view of the terminal part vicinity of the handle | steering-wheel part 3 of the electric tool which concerns on embodiment which made the hook 5 non-rotating type (fixed type).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or equivalent component, member, etc. which are shown by each drawing, and the overlapping description is abbreviate | omitted suitably. In addition, the embodiments do not limit the invention but are exemplifications, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view of a power tool 1 according to an embodiment of the present invention. The electric tool 1 is an example of an electric device, and here is a cordless type impact driver. The electric tool 1 includes a housing 2, a handle portion 3 provided on the housing 2 so as to be rotatable by a rotation shaft 10, and a hook (hanging tool) 5 provided at a terminal portion of the handle portion 3. .

The housing 2 is made of, for example, resin, and includes the motor 4, a planetary gear mechanism 18 as a speed reduction mechanism, and an impact mechanism 20. The impact mechanism 20 is a known rotary striking mechanism and includes a spindle 21, a hammer 22, a spring 24, a steel ball 23, and an anvil 25. In brief, the rotation of the motor 4 is decelerated by the planetary gear mechanism 18 and transmitted to the spindle 21. The spindle 21 and the hammer 22 are connected to each other by a cam mechanism including a steel ball 23. The anvil 25 has a mounting hole (tip tool holding portion) 25a covered with a sleeve 27 at the tip. The hammer 22 is always biased forward by the spring 24. The hammer 22 applies a rotational impact force to the anvil 25, and applies a rotational impact force to the screw via a tip tool such as a driver bit (for example, the bit 8 in FIG. 2) mounted in the mounting hole 25a of the anvil 25.

The handle portion 3 is made of, for example, resin, and the outer surface is covered with an elastic body such as an elastomer. The handle part 3 is detachably attached to a terminal part of a rechargeable battery pack 30 serving as a power source for the electric tool 1. Specifically, the handle portion 3 has an opening at a terminal portion (an end portion on the side opposite to the rotation shaft 10 in the axial direction of the handle portion 3), and the battery cell 30a of the battery pack 30 is inserted into the handle portion 3 from the opening. The battery pack 30 can be attached to the handle portion 3 by inserting the battery pack 30 into the handle portion 3 and locking the battery pack 30 to the end portion of the handle portion 3 by a known latch mechanism. Further, the battery pack 30 can be removed from the handle portion 3 by releasing the latch by the latch mechanism by the latch operation portion 31. In the handle portion 3, a switch mechanism 6 that controls energization and stoppage from the battery pack 30 to the motor 4 is provided. The user can operate energization and stop (drive and stop of the motor 4) of the motor 4 by operating (pulling) the switch operation unit (trigger) 7 provided in the handle unit 3.

The hook 5 is preferably a metal member for hooking (suspending) the electric power tool 1 when not in use, and is provided at the end of the handle portion 3. The pivot fulcrum part 5 a of the hook 5 is inserted into a through hole 3 a provided in the handle part 3. The position of the through hole 3 a in the direction around the axis of the handle portion 3 is the same as that of the trigger 7. That is, the through-hole 3a is provided on the same side as the trigger 7 in the handle portion 3 and on the mounting hole 25a side (front side) as shown in FIGS. The hook 5 is rotatable with respect to the handle portion 3 within the range of the angle θ shown in FIGS. 2, 4 and 6. That is, the hook 5 is rotatable between the use position and the retracted position shown in FIG. The hook 5 surrounds the end side of the handle portion 3 (the end portion of the handle portion 3 and the battery pack 30) in the direction around the axis of the handle portion 3 in the retracted position.

As shown in FIG. 10, the free end 5d of hook 5 (the end opposite to the rotation fulcrum 5a across the central axis of the handle 3) engages with the corner of the battery pack 30 and retracts. The rotation from the position toward the use position is restricted. That is, the distance between the through hole 3a of the handle portion 3 and the corner portion of the battery pack 30 is slightly larger than the distance between the rotation fulcrum portion 5a of the hook 5 and the free end portion 5d. The free end 5d of the battery pack is caught at the corner of the battery pack 30. The user applies a light force to the free end portion 5d of the hook 5 so as to move away from the rotation fulcrum portion 5a, thereby widening the distance between the rotation fulcrum portion 5a and the free end portion 5d. It can be rotated across 30 corners.

As shown in FIG. 7, the hook 5 in the retracted position extends from the rotation fulcrum portion 5 a and circulates around the end portion of the handle portion 3 and the battery pack 30 in a plane perpendicular to the axis of the handle portion 3. It includes a circumferential portion 5b and an inclined portion 5c that is inclined from the planar circumferential portion 5b to the distal end side of the handle portion 3 and extends toward the free end portion 5d. That is, the hook 5 is formed in a ring shape (loop shape) by the rotation fulcrum part 5a, the plane circumference part 5b, the inclined part 5c, the free end part 5d, the inclination part 5c, the plane circumference part 5b, and the rotation fulcrum part 5a. . Since the pair of rotation fulcrum portions 5a are separated from each other, they are formed in a C-shaped ring shape (loop shape) as shown in FIG. Moreover, the plane periphery part 5b, the inclination part 5c, and the free end part 5d comprise the connection part which connects a pair of rotation fulcrum part 5a. Since the hook 5 has the inclined portion 5 c, the position of the rotation fulcrum portion 5 a and the position of the free end portion 5 d are shifted in the axial direction of the handle portion 3. The planar rotating portion 5b and the inclined portion 5c are connected to each other at a position that does not overlap the latch operation portion 31 of the battery pack 30. That is, the hook 5 is bent when viewed from the direction perpendicular to the axis of the handle portion 3 so as not to overlap the latch operation portion 31 of the battery pack 30 at the retracted position.

As shown in FIG. 2, when the electric tool 1 is used in a gun type configuration, the hook 5 does not contact the user's hand 9 regardless of the position of the hook 5 within the range of the angle θ. As shown in FIG. 4, when the electric tool 1 is used in a straight form and the thrust is applied in the horizontal direction, the hook 5 remains in the user's hand 9 regardless of the position of the hook 5 in the range of the angle θ. Never touch. As shown in FIG. 6, even when the electric tool 1 is used in a straight configuration and thrust is applied in the vertical direction (downward in the figure), the hook 5 can be placed at any position within the range of the angle θ. Does not touch the user's hand 9. In any case, when the hook 5 is in the use position, if the operability is impaired due to contact with a structure or the like by working in a narrow place, the hook 5 is rotated to the retracted position shown in FIG. You can do it.

When the hook 5 is removed from the handle portion 3, the pair of rotating fulcrum portions 5a are pushed away from the state shown in FIG. 8 using the metal spring property (force is applied in the F direction in FIG. 9). 9), the pair of rotation fulcrum parts 5a may be removed from the through holes 3a of the handle part 3 as shown in FIG. When the hook 5 is attached to the handle portion 3, the pair of rotating fulcrum portions 5a are spread and set on both sides of the through hole 3a as shown in FIG. 9, and the pair of rotating fulcrum portions as shown in FIG. What is necessary is just to insert 5a in the through-hole 3a.

According to the present embodiment, the following effects can be achieved.

(1) Since the hook 5 is provided in the electric tool 1 of the type in which the handle portion 3 rotates with respect to the saddle housing 2, the electric tool 1 can be suspended when not in use, which is convenient.

(2) The hook hook 5 is provided at the distal end of the handle portion 3 and extends to the axially extending side of the handle portion 3 in the use position. Therefore, the handle portion 3 is used in various usage modes shown in FIGS. The influence on the grip of can be suppressed.

(3) Since the hook 5 can be rotated between the use position and the retracted position, if the operability is impaired when the hook 5 remains in the use position in a narrow work or the like, the hook 5 is returned to the retracted position. Therefore, deterioration of operability can be suppressed.

(4) The heel hook 5 surrounds the distal end side of the handle portion 3 in the direction around the axis of the handle portion 3 in the retracted position, so that the user grips the hook 5 between the hand 9 and the handle portion 3. The relationship can be avoided, and the influence on the grip of the handle portion 3 can be suppressed.

(5) Since the corner portion of the battery pack 30 engages with the hook 5 so as to restrict the hook 5 from rotating from the retracted position toward the use position, the hook 5 set at the retracted position is used unexpectedly. It can prevent turning to a position.

(6) Since the hook 5 is bent when viewed from the direction perpendicular to the axis of the handle portion 3 so as to avoid the latch operation portion 31 of the battery pack 30 in the retracted position, the battery pack 30 can be removed by providing the hook 5. Workability deterioration can be suppressed.

(7) The hook 5 is composed of only one part and does not require other parts such as screws and nuts to be attached to the handle part 3, so that it has an inexpensive and simple structure.

(8) Since the hook hook 5 is made of metal, the strength against dropping is high. Moreover, it can be easily attached to and detached from the through hole 3a of the handle portion 3 by utilizing a metal spring property.

(9) Since the hook 5 can be attached to the through hole 3a of the handle portion 3 afterwards, it can contribute to the improvement of the convenience of existing products.

The present invention has been described above by taking the embodiment as an example. However, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, modifications will be described.

The electric power tool is not limited to a rotating type in which the handle portion rotates with respect to the housing. The electric tool is not limited to the one that performs the work related to the screw tightening, and may be another type of portable electric tool such as a saver saw, a grinder, a reciprocating tool, a grinding tool, or a circular saw. The electric device is not limited to various electric tools, and may be other types of portable electric devices such as a cleaner and a work light. Further, the power source is not limited to a battery pack that can be attached to and detached from the handle unit, and may be an AC power source such as a battery built in the handle unit or a commercial power source. In this case, if the free end portion 5d of the hook 5 is engaged with the corner portion of the handle portion, the rotation of the hook 5 can be restricted. Moreover, the support part of the hook 5 is not limited to the through hole 3a, and may be a non-through hole.

The hook 5 is not limited to the case where it can be rotated with respect to the handle portion 3. FIG. 11 is an enlarged cross-sectional side view of the vicinity of the distal end portion of the handle portion 3 of the electric power tool according to the embodiment in which the hook 5 is non-rotating (fixed). The through hole 3a and the hook 5 of the handle portion 3 have a square cross section, and the hook 5 does not rotate from the position shown in FIG. 11 (corresponding to the use position in FIG. 2). In this case, the hook 5 cannot be rotated to the retracted position, but the effect of improving the convenience by providing the hook 5 is obtained, and the influence on the grip of the handle portion 3 is suppressed.

DESCRIPTION OF SYMBOLS 1 ... Electric tool, 2 ... Housing, 3 ... Handle part, 3a ... Through-hole, 4 ... Motor, 5 ... Hook, 5a ... Rotation fulcrum part, 5b ... Planar circumference part, 5c ... Inclination part, 5d ... Free end part , 6 ... switch mechanism, 7 ... switch operation part (trigger), 8 ... bit (tip tool), 9 ... hand, 10 ... rotating shaft, 20 ... impact mechanism, 21 ... spindle, 22 ... hammer, 23 ... steel ball , 24 ... Spring, 25 ... Anvil, 25a ... Mounting hole (tip tool holding part), 27 ... Sleeve, 30 ... Battery pack, 30a ... Battery cell, 31 ... Latch operation part

Claims

An electrical apparatus comprising: a housing; a handle portion that is rotatably provided on the housing; and a hook that is provided at a terminal portion of the handle portion.
The electric device according to claim 1, wherein the hook is rotatably provided on the handle portion.
The electric device according to claim 2, wherein the hook surrounds a distal end side of the handle portion in a direction around an axis of the handle portion in the retracted position.
A handle portion, and a hook rotatably provided at the end portion of the handle portion,
The electric device, wherein the hook surrounds the distal end side of the handle portion in a direction around the axis of the handle portion in the retracted position.
The end corner of the handle or the end of the battery pack provided at the end of the handle engages with the hook so as to restrict the hook from rotating from the retracted position to the use position. The electric device according to claim 3 or 4,
The hook has a rotation fulcrum portion connected to the handle portion, and a free end portion on the opposite side of the rotation fulcrum portion across the central axis of the handle portion,
The electric device according to claim 5, wherein the free end engages with the terminal corner or the corner.
The battery pack includes a battery pack that is detachably provided at an end portion of the handle portion, and the hook is bent when viewed from a direction perpendicular to the axis of the handle portion so as not to overlap the latch operation portion of the battery pack at the retracted position. The electrical device according to any one of claims 3 to 6.
In the retracted position, the hook includes a rotation fulcrum portion connected to the handle portion, and a free end portion on the opposite side of the rotation fulcrum portion across the central axis of the handle portion. The electric device according to any one of claims 3 to 7, which is displaced in an axial direction.
The handle portion has a switch operation portion for operating movement and stop of the electric device, and a hole portion for rotatably supporting the hook.
The electrical device according to any one of claims 1 to 8, wherein the switch operation portion and the hole portion have the same position in the direction around the axis of the handle portion.
The electrical device according to any one of claims 1 to 9, wherein the hook is made of metal.
The electrical device according to any one of claims 1 to 10, wherein the hook is formed in a ring shape.
The handle portion has a hole portion that rotatably supports the hook,
The hook is formed in a ring shape having a pair of rotation fulcrum portions connected to the hole portion and a connection portion connecting the pair of rotation fulcrum portions,
The electrical device according to any one of claims 1 to 11, wherein the hook is configured to be detachable from the hole portion by pushing the pair of rotation fulcrum portions away from each other.
The electric device according to any one of claims 1 to 12, which operates using a battery as a power source.