JP2003251604A - Motor-driven tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with an operation to attach/detach a guide member in a motor-driven tool with the guide member which guides a working tool so that its position to a material to be worked can be fixedly maintained, when the material to be worked is worked by transferring the working tool along the material. <P>SOLUTION: In the motor-driven plane 1, the guide member 10 which guides the movement of the motor-driven plane 1 through coming into contact with the edge face (a side face) of the material to be worked, when the face to be cut (an upper face) of the material to be worked is cut, is installed at the side lower parts of a forward surface plate 2 and a tool main body 4 respectively. Both guide members 10 are able to structurally change their positions between a use position where the members 10 protrude downward from the lower faces 2a and 3a of the surface plates 2 and 3 and a retreating position where the members 10 climb upward from the lower faces 2a and 3a of the surface plates 2 and 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric tool such as a portable electric can, and more specifically, during a working operation, a working tool is moved along a work material to machine the work material. The present invention relates to an electric tool that includes a guide member that guides the work tool so that the position of the work tool with respect to the work material is kept constant when the work is performed.

[0002]

2. Description of the Related Art An electric plane equipped with this type of guide member is described in, for example, Japanese Patent Laid-Open No. 4-193501. The guide member (guidance ruler) for the electric planer described in the publication is composed of a plurality of arch-shaped tightening tools and two guide plates attached so as to face the tightening tools. The tightening tool of the guide member is configured to be attachable / detachable to / from the planer body, and the guide plate can be positionally adjusted to or detachable from the tightening tool. When cutting the upper surface of a work material (for example, square wood) with an electric planer,
The guide plate is brought into contact with the end surface (side surface) orthogonal to the cutting surface of the work piece to move the electric planer, whereby the position of the planer blade is held constant with respect to the work piece, and the work piece of the planer blade is held. The straightness can be maintained. This makes it possible to obtain a cut surface with a good finish.

[0003]

The guide member described above is not necessarily used for all cutting operations, and may not be used for some operations. In such a case, the guide member is conventionally removed from the electric planer. That is, since the conventional guide member is attached to the electric plane when it is used and detached from the electric plane when it is not used, there is a problem in that the attaching and detaching work takes time and is troublesome.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to process a work material by moving a work tool along the work material. Another object of the present invention is to provide a technique capable of eliminating the work of attaching and detaching the guide member in an electric tool including a guide member for guiding the position of the processing tool with respect to the work material so as to be kept constant.

[0005]

In order to achieve the above object, an electric power tool of the present invention is configured as described in claims 1-6. The invention according to claim 1 is a guide for guiding the work tool so that the position of the work tool with respect to the work material is kept constant when the work tool is moved along the work material to process the work material. In a power tool including a member, the guide member is provided so as not to be removable, and is configured to be repositionable between a use position in which the position of the processing tool with respect to the work material is held constant and a retracted position in which it is not held. ing.
Here, non-removable means that it is not usually assumed to be removed, and does not exclude the case of removing for disassembly, for example. That is, the invention according to claim 1 is of a type in which the guide member is repositioned to the use position or the retracted position according to the processing work, and thus the conventional work of attaching and detaching the guide member is unnecessary. Therefore, the work efficiency can be improved.

The invention according to claims 2 to 5 is characterized in that a surface plate having a sliding surface slidable along the workpiece, a tool body that moves integrally with the surface plate, and the surface plate or the tool. Holds the position of the work tool relative to the work material when processing the work material by moving the work tool that is attached to the body and is equipped with the tool body along with the work body along with the tool body This is a technique that eliminates the work of attaching and detaching the guide member in the electric tool provided with the guide member that guides the guide.

According to the second aspect of the invention, the guide member comprises:
It is configured to be repositionable between a use position in which an end surface of a work material is abutted to hold a position of a processing tool relative to the work material constant and a retracted position in which the work tool does not abut the end surface of the work material. . Therefore, according to the invention described in claim 2, the guide member attached to the tool body or the surface plate is moved to the use position or the retreat position according to the machining operation, so that The work of attaching and detaching is unnecessary and the work efficiency can be improved.

According to a third aspect of the present invention, in the electric power tool according to the second aspect, the guide member is attached to the tool body or the surface plate so as to be vertically movable, and protrudes below the sliding surface of the surface plate. The position is the use position, and the position raised above the sliding surface of the surface plate is the retracted position. Therefore, according to the invention as set forth in claim 3, when the electric tool is moved along the workpiece and is processed by the processing tool, the guide member is repositioned to the use position protruding from the sliding surface of the surface plate. In this case, the electric tool is moved in a state where the guide member is in contact with the end surface of the work material, and the work tool is held and guided so that its position is constant with respect to the work material. be able to. On the other hand, when the guide member is raised above the sliding surface of the surface plate and moved to the retracted position,
Since it becomes impossible to contact the end surface of the work piece, at this time, the working operation can be performed without using the guide member.

According to a fourth aspect of the present invention, in the electric tool according to the third aspect, the guide member has a shaft portion fitted in a guide hole formed in the tool body or the surface plate so as to be vertically movable. Between the shaft portion and the guide hole, there are formed a spring-biased ball in the radial direction and two upper and lower recesses into which the ball can be engaged and disengaged, and the guide member is repositioned. It is equipped with a position holding mechanism that holds it in the open position. Therefore, according to the invention described in claim 4, the guide member can be easily repositioned by moving the guide member in the vertical direction with an operating force exceeding the spring force for urging the ball. Further, the guide member after the position change can be held at the position.

According to the invention described in claim 5, claims 2 to 4 are provided.
In the electric tool according to any one of 1 to 3, the guide member is provided at least at two front and rear positions in the moving direction for processing the work material, and at least one of the guide members is rollable on the end surface of the work material. Have. Therefore, when the guide member is in use, the guide is provided at two front and rear positions, so that a stable guide action can be obtained, and smoothness can be obtained when the roller is moved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
~ It demonstrates based on FIG. The present embodiment is applied to a portable electric plane as an electric tool. 1 is a side view showing an electric plane equipped with a guide member.
3 and 4 are cross-sectional views showing the mounting structure of the guide member, respectively. FIG. 2 shows a state where the guide member is moved to the use position, and FIG. 3 shows a state where the guide member is moved to the retracted position. FIG. 4 is a view taken in the direction of arrow A in FIG. 3, and FIG. 5 is a schematic plan view showing how the guide member is used.

As shown in FIG. 1, the electric planer 1 is arranged so as to straddle between the front and rear surface plates 2 and 3 and the upper parts of both surface plates 2 and 3 which are arranged in the front and rear of the moving direction during the grinding operation. The tool main body 4 is provided. The tool body 4 includes a motor case that houses an electric motor (not shown) as a rotation drive source for the canna blade 5, a canna blade 5 and a power transmission mechanism (not shown) that transmits the rotation of the electric motor to the canna blade 5. It is composed of a housing for accommodating, a cover 4a detachably attached to open and close a side opening portion of the housing, and the like. A handle 6 is provided on the rear portion of the outer surface of the tool body 4, a grip 7 is provided on the front portion of the outer surface, and a trigger 8 for operating a motor start / stop switch is attached to the handle 6. .
The operator grips the handle 6 and the grip 7, and the cutting surface W1 of the workpiece W (see FIGS. 2 to 5) to cut the surface plates 2 and 3
Then, the tool body 4 is slid forward along the cutting surface W1 together with the surface plates 2 and 3 to perform the cutting work by the planer blade 5. The planer blade 5 corresponds to the processing tool in the present invention.

In order to adjust the cutting depth of the planer blade 5, the front surface plate 2 is attached to the tool body 4 so that the position in the height direction can be adjusted. In this embodiment, the front surface plate 2 is slid in an oblique direction to adjust the height. In FIG. 1, the operation grip 9 that is a part of the height adjustment mechanism is used.
It is shown. Since the height adjusting mechanism itself has the same configuration as the conventional one, a specific illustration and description thereof will be omitted.
Further, the rear surface plate 3 and the tool body 4 are connected to each other and integrated.

The electric planer 1 comes into contact with an end surface W2 (a side surface when the cutting surface W1 is an upper surface) that is perpendicular to the cutting surface W1 of the workpiece W during the cutting operation of the workpiece W. The guide member 10 for guiding the electric planer 1 to move straight in the cutting direction (that is, holding the position of the planer blade 5 with respect to the workpiece W at a constant position) by moving the electric planer 1 by moving the electric plane. have. That is, the guide member 10
When the electric planer 1 is moved along the work material W and the work material W is cut by the planer blade 5, the work material W is
And the relative positional relationship between the cutter blade 5 and the planer blade 5 are kept constant and guided. In the present embodiment, the guide member 10 is provided at two front and rear positions in the cutting direction, and the guide member 10 on the front side is attached to the lower part of the left side surface in the cutting movement direction of the front surface plate 2 and is provided on the rear side. The guide member 10 is the tool body 4
It is attached to the lower part of the left side surface of the cover 4a, which is a constituent member of The front and rear guide members 10 are arranged on the same center line P which is straight in the cutting movement direction (FIG. 5).
reference).

The front and rear guide members 10 project below the lower surfaces (corresponding to the sliding surfaces in the present invention) 2a, 3a of the surface plates 2, 3 and come into contact with the end surface W2 of the workpiece W ( 2 is a position shown in FIG. 2 and hereinafter, this position is referred to as a use position) and a position where the end surface W2 of the work W does not come into contact with the end surface W2 of the workpiece W (shown in FIG. 3). This position is hereinafter referred to as a retracted position), and the position is attached so that the position can be changed. That is, the guide member 10
Can be switched between a use position in which the position of the planer blade 5 with respect to the workpiece W is held constant and a retracted position in which it is not held. The mounting structure of the guide member 10 is
It is a front-rear joint structure.

Next, the mounting structure of the guide member 10 to the front surface plate 2 and the tool body 4 will be described with reference to FIGS. 2 and 3. As shown in the figure, a mounting portion 20 is formed on the lower side surface of the front surface plate 2 and the tool body 4, and a guide hole 21 whose axial direction is the vertical direction is formed through the mounting portion 20. The mounting portion 20 of the front surface plate 2 is formed so as to project to the side of the front surface plate 2, and the mounting portion 20 of the tool body 4 is attached.
Is configured using a flat plate portion formed below the side surface recessed portion 4b formed in the cover 4a as shown in FIG. The guide member 10 is mainly composed of a shaft portion 11 and a roller 12 that is horizontally rotatably attached to a lower end portion of the shaft portion 11. After inserting the shaft portion 11 into the guide hole 21 from below, One retaining ring at the top of the part 11
3 is attached to the attachment portion 20 so as to be vertically movable while being prevented from coming off. In addition, in the present embodiment, both the guide hole 21 and the shaft portion 11 are formed in a circular shape. Therefore, the directionality in the circumferential direction is not specified at the time of mounting, and the assembling property is good.

Guide member 10 mounted as described above
Is the use position where the roller 12 projects below the lower surfaces 2a and 3a of the surface plates 2 and 3, and the roller 12 is the lower surface 2a and 3a.
It is possible to change the position between the retracted position that is lifted above 3a. The roller 12 displaced to the retracted position is
It is adapted to be stored in a storage recess 22 formed in the mounting portion 20. In the present embodiment, the storage recess 22
Is formed to have an L-shaped cross-section with the lower surface and side surfaces open, but it may be a bell-shaped recess in which only the lower surface is open.
The repositioned guide member 10 is held by a position holding mechanism 30 provided between the shaft portion 11 and the mounting portion 20.

The position holding mechanism 30 has two annular upper and lower engaging grooves 31 having a V-shaped cross section formed on the outer peripheral surface of the shaft portion 11 of the guide member 10, and an engaging groove provided in the mounting portion 20. Three
A ball 32 that can be engaged and disengaged with respect to 1 is mainly configured. The ball 32 has a lateral hole 33 formed in the mounting portion 20.
It is housed inside and is biased in the engagement direction by the compression spring 34. The compression spring 34 is supported by a screw 35 screwed into the lateral hole 33.

The electric plane 1 according to the present embodiment is constructed as described above. Therefore, the guide member 1
When performing a cutting operation using 0, first, the front and rear guide members 10 are manually pushed down. As a result, the roller 12 comes to the use position (see the phantom line in FIG. 1 and FIG. 2) in which the rollers 12 protrude below the lower surfaces 2a and 3a of the surface plates 2 and 3, and the guide member 10 displaced to the use position has the shaft portion. The engaging groove 31 on the upper side of 11 engages with the ball 32 to be held in the use position. When the workpiece W is cut by the electric planer 1, as shown in FIGS.
The roller 12 is brought into contact with the end surface W2 of the workpiece W that is orthogonal to the cutting surface W1 and is used as a guide for the electric planer 1.
Can be moved straight to the workpiece W. That is, the guide member 10 guides the workpiece W so as to keep the position of the planer blade 5 constant, and thereby,
A cutting surface with a good finish can be obtained.

On the other hand, when performing a cutting operation without using the guide member 10, the front and rear guide members 10 are manually pushed upward. As a result, the roller 12 is fixed to the surface plate 2,
3 is displaced to the retracted position above the lower surfaces 2a, 3a (see the solid line state in FIG. 1 and FIG. 3). The roller 12 displaced to the retracted position is stored in the storage recess 22, and the engagement groove 31 on the lower side of the shaft portion 11 engages with the ball 32 at that position, whereby the storage state is maintained. Therefore, the guide member 10 does not interfere with the cutting work by the electric planer 1 when it is not used.

As described above, according to the present embodiment, the guide members 10 are attached to the front surface plate 2 and the tool body 4, respectively, and the guide member 10 is pushed downward from the lower surface of the surface plate and pushed upward from the lower surface of the surface plate. Since the position of the guide member 10 is changed between the retracted position and the raised retracted position, the guide member 10 is different from the conventional detachable type.
It is possible to easily switch from the usage mode to the non-use mode or from the non-use mode to the usage mode, and it is possible to improve workability. In addition, in the present embodiment, the roller 12 rolls on the end surface W2 of the workpiece W, and the guide is provided before and after the cutting movement direction, so that a smooth and stable guiding action can be obtained. You can In addition, the guide member 1
Since 0 is moved linearly in the vertical direction to change the position, the guide member 10 can be held in the use position without being applied with an upward external force during use. Further, since the position holding mechanism 30 is configured by the spring-biased ball 32 and the engagement groove 31, an operation force exceeding the spring force of the compression spring 34 that biases the ball 32 in the engagement direction is applied in the axial direction. The position of the guide member 10 can be easily changed only by doing so.

The present invention is not limited to the above-described embodiments, but can be modified as appropriate without departing from the spirit of the invention. For example, in the embodiment, the guide member 10 is configured such that the roller 12 rolls with respect to the workpiece W, but a plate that abuts the workpiece W in a plane may be used instead of the roller 12. Good.
In that case, the guide member 10 may be single. Also,
In the embodiment, the position change of the guide member 10 is linearly moved in the vertical direction to switch the position. However, for example, a type in which the guide member 10 is moved in the vertical direction by a rotating operation around the horizontal axis (jump-up type). You may change to. In that case, the turning direction may be the front-back direction or the left-right direction. In addition, in the embodiment, the shaft portion 11 of the guide member 10 is slidably fitted in the guide hole 21, and the ball 32 and the engagement groove 31.
Although the position holding mechanism 30 is configured to hold the switching position, the position holding mechanism is not limited to this. For example, the mounting portion 20 can be replaced with the ball 32 in the radial direction (lateral direction). A spring-loaded pin or screw pin may be provided. Further, by changing the shaft portion 11 of the guide member 10 to a screw shaft and the guide hole 21 to a screw hole, the guide member 10 can be rotated to change the position between the use position and the retracted position. Good.

[0023]

As described in detail above, according to the present invention,
A guide is provided for a power tool including a guide member that guides the work tool so that the position of the work tool relative to the work material is held constant when the work tool is moved along the work material and the work material is processed. It is possible to provide a technique capable of eliminating the work of attaching and detaching members.

[Brief description of drawings]

FIG. 1 is a side view showing an entire electric plane according to the present embodiment.

FIG. 2 is a cross-sectional view showing a mounting structure of a guide member, showing a state in which the guide member is relocated to a use position.

FIG. 3 is a cross-sectional view showing a mounting structure of a guide member, showing a state in which the guide member is relocated to a retracted position.

FIG. 4 is a view on arrow A in FIG.

FIG. 5 is a schematic plan view showing a cutting mode using a guide member.

[Explanation of symbols]

1 ... Electric planer (power tool) 2, 3 ... Surface plate before and after 2a, 3a ... Lower surface (sliding surface) 4 ... Tool body 5 ... Canna blade (processing tool) 10 ... Guiding member 11 ... Shaft 12 ... roller 21 ... Guide hole 30 ... Position holding mechanism 31 ... Engagement groove 32 ... Ball W ... Workpiece material W1 ... Cutting surface W2 ... End face

Claims (5)

[Claims] 1. A guide member for guiding the work tool so that the position of the work tool with respect to the work material is kept constant when the work tool is moved along the work material to process the work material. An electric power tool provided, wherein the guide member is provided in a non-removable manner,
An electric tool characterized in that the position of the processing tool with respect to the workpiece is held at a fixed position and a retracted position where the position is not held. 2. A surface plate having a sliding surface slidable along a workpiece, a tool body that moves integrally with the surface plate, and a surface plate or a tool body that is attached to the tool body. When the provided processing tool is moved along with the tool body along the work material to process the work material, the work tool is guided so as to hold the position of the work tool relative to the work material constant. An electric tool comprising a guide member, wherein the guide member is in contact with an end surface of a work material to hold a position of the processing tool with respect to the work material at a constant position, and An electric tool characterized in that it can be repositioned between a retracted position that does not abut against an end face. 3. The electric tool according to claim 2, wherein the guide member is attached to the tool main body or the surface plate so as to be movable up and down, and a position projecting below a sliding surface of the surface plate is used. The electric tool is characterized in that the retracted position is a position that is raised above the sliding surface of the surface plate. 4. The electric power tool according to claim 3, wherein the guide member has a shaft portion that is vertically movably fitted in a guide hole formed in the tool body or the surface plate, Between the shaft portion and the guide hole, there are formed a spring-biased ball in the radial direction and two upper and lower recesses into which the ball can be engaged and disengaged. An electric tool comprising a position holding mechanism for holding. 5. The electric power tool according to any one of claims 2 to 4, wherein the guide member is provided at least at two front and rear positions in a moving direction for processing a workpiece, and at least one of them is provided. One of the electric tools is equipped with a rollable roller on the end surface of the workpiece.