JPH0720217U - Cutting tool - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a cutting tool having good workability even when used by being inclined with respect to the object to be cut. [Structure] Main body housing 1 with handle part 1a formed on the outside
A base 9 which is arranged at a predetermined position on the main body housing 1 and which sets the cutting amount of the circular saw blade 2, and an end of the base 9 which is rotatably mounted and attached in the contact direction of the object to be cut. It is configured to include a black follow-up member 10 that is biased and has a display portion 9a that indicates the cutting position of the object to be cut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutting tool for cutting an object to be cut such as wood or metal, and more particularly to a structure for indicating a cutting position of the object to be cut.

[0002]

[Prior art]

 Conventionally, this type of cutting tool cuts an object to be cut such as wood or metal by rotating or reciprocating a saw blade. For example, when a circular saw blade is used as a saw blade, as shown in FIGS. 8 to 10, a main body housing A having a handle portion formed outside and a drive unit housed inside, and one end surface thereof are shown. Is arranged at a predetermined position of the main body housing A so as to come into contact with the object to be cut, and a base B for setting the cutting amount of the circular saw blade, and a substantially L-shaped piece is formed at the end of the base B. In some cases, a black ink follower member C fixed by rivets or welding is provided. Here, the black tracing member C has a display portion D which is cut out in a substantially V shape from one end of the other piece toward the inside and indicates the cutting position of the object to be cut.

As an example of integrally forming the base B and the black ink follower member C, as shown in FIG. 11, an end portion of the base B is provided with a predetermined angle, and the display portion D is substantially U in this portion. Some have notches formed in a letter shape.

[0004]

[Problems to be solved by the device]

 Of the above-mentioned conventional cutting tools, the former usually cuts while making one end surface of the base B abut against the surface to be cut, as shown in FIG. 9, but the user is low, such as bending forward. When working in a posture, as shown in FIG. 10, the entire cutting tool may be slanted and pressed against an object to be cut to perform cutting. At this time, since the one end of the other piece of the black tracing member C comes into contact with the object to be cut before the end of the base B, the stability is lost when the object is cut with the circular saw blade. , It is no longer a guide for the cutting position.

Further, in the latter case, when the whole cutting tool is slanted and pressed against the object to be cut, there is a problem that only a certain angle can be dealt with.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cutting tool having good workability even when used by inclining the whole with respect to an object to be cut. There is something to do.

[0007]

[Means for Solving the Problems]

 To achieve the above object, a cutting tool according to the present invention comprises a saw blade driven by a driving device, a main body housing having a handle part formed on the outside and housing the driving device inside, and an abutting member to be cut. Has a base that is placed at a predetermined location on the main body housing and that sets the cutting amount of the saw blade, and an indicator that is provided at the end of the base and that indicates the cutting position of the object to be cut. The black ink purging member is provided at the end of the base so as to be rotatable with respect to the base, and is biased in the contact direction of the cut object.

[0008]

[Action]

 According to the structure of the present invention, when the black tracking member is pressed against the object to be cut, the black tracking member rotates with respect to the base and contacts the object to be cut in an appropriate state.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. The cutting tool of this embodiment will be described using an electric circular saw as an example.

Reference numeral 1 denotes a main body housing, which has a handle portion 1a and a reinforcing portion 1b for increasing rigidity formed on the outside. Inside the main body housing 1, a motor (not shown), a transmission gear (not shown) attached to the rotary shaft of the motor, and one end attached to the transmission gear and the other end to the outside of the main body housing 1 And a drive shaft (not shown) that is projected to the inside. Further, a circular saw blade 2 is attached to the drive shaft by a fixing member 3 so as to be detachable.

A power supply device 5 for supplying power to the motor by operating a switch 4 is detachably arranged at one end of the main body housing 1. When the power supply device 5 is detached from the main body housing 1 and connected to a charging device (not shown), electricity is charged inside. Reference numeral 6 denotes a lock lever, which prevents the switch 4 from being operated when the lock lever is in the upper position, and allows the switch 4 to be operated when the switch is pressed downward.

A fixed cover 7 formed in a generally semicircular shape in plan view is provided on the side portion of the main body housing 1 on the side where the drive shaft protrudes so as to cover substantially the upper half of the circular saw blade 2. ing. The fixed cover 7 is attached with a movable cover 8 which is formed so as to cover the cutting edge of the circular saw blade 2 and has an abutting portion 8a at one end for abutting the object to be cut. This movable cover 8 can be rotated concentrically with the rotation center of the circular saw blade 2 when the state shown in FIG. 2 is the normal state, and when it is rotated in the direction of arrow A, it is opposite to the direction of arrow A. It is attached inside the fixed cover 7 so that the biasing force increases in the direction.

At the lower part of the main body housing 1 in the figure, a base 9 having a substantially rectangular shape in plan view and an edge bent upward is disposed so that the cutting amount of the circular saw blade 2 can be set. ing. The base 9 has a rectangular hole (not shown) formed at an appropriate position for inserting the circular saw blade 2 and projecting the cutting edge of the circular saw blade 2 downward, and the circular saw blade 2 in the cutting direction. An attachment portion 9a for attaching a black ink follow-up member 10 described later is provided at one end which is orthogonal to the above. This attachment part 9a is formed by notching inward from one end of the base 9, and has holes 9b and 9b at predetermined opposite positions and spring support at predetermined positions adjacent to the holes 9b and 9b. And a section (not shown).

Reference numeral 10 denotes a black ink tracing member, which is in the form of a plate and has a display portion 10a in which one end is bent inward in a substantially U shape and the other end is bent in a substantially U shape, and the other end. A hole 10b formed to have a diameter substantially the same as the diameter of the hole 9b, and a rib 10c, which is formed so as to come into contact with the opposite edges of the attachment portion 9a other than the holes 9b, 9b from above in the figure. Have 10c and. This black trace member 10 is attached so that the hole 10b is located between the holes 9b, 9b and the ribs 10c, 10c are abutted against the opposite edges of the attachment 9a from above in the figure. It is arranged in the portion 9a. A round bar 11 having a diameter slightly smaller than the diameter of the hole 9b is inserted into the holes 9b, 9b, 10b, whereby the black tracking member 10 is rotated with respect to the attaching portion 9a. Be free. Here, FIG. 6 shows a case where the black ink follower member 10 is in the normal position without rotating with respect to the attachment portion 9a, and FIG. 7 shows that the black ink follower member 10 is attached to the attachment portion 9a. The figure shows the case in a rotating state.

Numerals 12 and 12 are urging springs, which have coil spring portions 12a and 12a and urging portions 12b and 12b that extend substantially vertically outward from one end of the coil spring portions 12a and 12a. . The biasing springs 12 and 12 support the coil spring portions 12a and 12a by the spring supporting portions, and the end portions of the biasing portions 12b and 12b are brought into contact with one end surface of the black tracing member 10, whereby the black tracing member is pressed. It will urge 10 in the thickness direction.

The use of this embodiment will be described below. First, the base 9 sets a desired cutting amount of the circular saw blade 2. While pressing down the lock lever 6, operate the switch 4 to rotate the circular saw blade 2. When one end surface of the base 9 is brought into contact with the object to be cut, the object to be cut is cut by the circular saw blade 2 when pushed in the cutting direction. At this time, since the movable cover 8 is in contact with the contact portion 8a by the object to be cut, when the electric circular saw is pushed forward, the movable cover 8 rotates and retreats back into the fixed cover 7. Further, since the display portion 10a of the black tracing member 10 indicates the cutting position of the object to be cut, a line is drawn in advance with a black thread or the like at the position where the object to be cut is to be cut, and the display portion Workability can be further improved by cutting together 10a.

When the other end surface of the black tracking member 10 is pressed against the object to be cut while inclining the whole, the black tracking member 10 is urged by the biasing springs 12 and 12 in the contact direction of the object to be cut. It rotates with respect to the attachment portion 9a and comes into contact with the object to be cut in an appropriate state. Accordingly, the display portion 10a of the black tracing member 10 can more clearly indicate the cutting position of the object to be cut, and the workability can be improved.

In the present embodiment, the electric circular saw has been described as an example, but the present invention is not limited to this, and for example, a reciprocating saw may be used.

Further, in the present embodiment, the round bar is inserted into the holes 9b, 9b, 10b so that the black follower member 10 can be freely rotated with respect to the attachment part 9a. However, the present invention is not limited to this, and for example, a convex portion may be formed on the other end of the black ink follower member 10 and the convex portion may be fitted into the holes 9b, 9b.

[0020]

[Effect of device]

 In the cutting tool of the present invention, when the black follower member is pressed against the object to be cut, the black follower member rotates with respect to the base and abuts the object to be cut in an appropriate state. The cutting position of the object can be clearly indicated, and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a side view seen from the one direction.

FIG. 3 is a side view seen from another direction.

FIG. 4 is an exploded perspective view of part A thereof.

FIG. 5 is a front view of the black additional member.

FIG. 6 is a cross-sectional view of an essential part showing a normal position of the black ink follower member.

FIG. 7 is a simplified diagram showing a rotating state of the black ink follow-up member.

FIG. 8 is an exploded perspective view of a main part of a conventional example.

FIG. 9 is a perspective view showing a usage state in the normal state.

FIG. 10 is a perspective view showing a use state in a state where the whole is inclined.

FIG. 11 is a perspective view of a main part of another conventional example.

[Explanation of symbols]

 1 Main body housing 1a Handle part 2 Circular saw blade 9 Base 10 Black additional member 10a Display part

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[Procedure amendment]

[Submission date] February 1, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (1)

[Scope of utility model registration request] 1. A saw blade driven by a drive device, a main body housing having a handle part formed outside and housing the drive device inside, and a saw blade arranged at a predetermined position of the main body housing so as to contact an object to be cut. In a cutting tool provided with a base for setting a cutting amount of a saw blade, and an ink tracing member provided at an end portion of the base and having a display portion showing a cutting position of an object to be cut. The cutting tool is provided at the end of the base so as to be rotatable with respect to the base and is biased in the contact direction of the object to be cut.