JPS6337201Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tilting handle for a hand-held bandsaw machine.

Hand-held bandsaw machines are used in the longitudinal direction of the main body (back and forth direction).
The material is cut by holding the handle with both hands. Further, a switch for starting the main body is mainly installed in a handle on the operator's side, and this handle is fixed to the main body. This type of band saw machine cuts materials located above and below the worker, but when cutting material located below the worker, the switch is attached to the top of the handle. Holding the device as if it were hanging will reduce fatigue. Additionally, when cutting a material located above the worker, holding the bottom side of the handle reduces fatigue as the main body is supported.

Conventionally, the switch installed in the handle can only be operated from one direction, and the handle cannot be held in a different position depending on the position of the material to be cut. There has been a desire for a device that has a switch position that is easy to operate even when the handlebar angle is adjustable.

The present invention was devised in view of the above-mentioned situation, and the object is to provide a tilting handle for a bandsaw machine that allows easy switch operation and cutting operations regardless of the position of the material to be cut. It is.

In the present invention, a housing is formed by a motor part, a left saw wheel cover and a right saw wheel cover arranged on the left and right sides of the motor part, and one endless band saw is attached to the saw wheel arranged in both saw wheel covers. A band saw machine that cuts a workpiece with the band saw blade exposed between both saw wheel covers while supporting the grip provided on the left saw wheel cover and the handle provided on the right saw wheel cover. If the handle is provided to be movable up and down, the handle can be set at a position that is easy to operate depending on the cutting position of the material to be cut, and work can be done in a comfortable posture. The relationship between the handle and the handle has been devised.

Examples of the present invention will be described below.

The overall structure of the band saw machine will be explained using FIG. 1. 1 is a housing that becomes the main body of the band saw machine;
The housing 1 includes a motor section 1c, and a left saw wheel cover 1a and a right saw wheel cover 1b disposed on the left and right sides of the motor section 1c. Saw wheel cover 1
Saw wheels (not shown) are arranged in each of a and 1b, and one endless band saw blade 2 is spanned through these saw wheels.

The right saw wheel cover 1b has a handle 4 which will be described later.
is supported rotatably in the vertical direction, and when cutting the material to be cut, the saw wheel covers 1a, 1b are supported while supporting the handle 4 and the grip 3 provided on the left saw wheel cover 1a. Perform this with the exposed band saw blade part between.

Next, the rotation mechanism of the handle 4 will be explained using FIGS. 2 to 6.

5 is a handle support part, and the right saw wheel cover 1
b It is provided on the upper part of the housing and extends in the longitudinal direction of the housing. The handle support part 5 has a fulcrum pin 10 that rotatably supports the handle 4, and is slidable in a direction parallel to the fulcrum pin 10 and always extends outward (in the direction of the arrow in FIG. 4) via a spring 7. The handle support portion 5 includes an operating pin 8 that is biased, and a recess 5a is formed on the inner surface of the handle support portion 5, into which a locking portion 8a provided at the inner end of the operating pin 8 is fitted when the operating pin 8 is biased.

Moreover, the handle 4 supported by the handle support part 5 has a locking part 8a in the rotation range of the handle 4.
A circular arc hole 9a that can be freely engaged with the locking part 8a is provided in the side surface corresponding to the handle 4, and a protrusion 9b is provided at an appropriate interval at one end of the hole. , a plurality of positioning holes 9c and each positioning hole 9c as shown in FIG.
The handle guide hole 9 is formed by a groove 9d that connects the two and has a width narrower than the diameter of the positioning hole 9c.

Therefore, in the above configuration, when the locking portion 8a of the operating pin 8 is fitted into the recess 5a of the handle support member 5 and the positioning hole 9c provided in the handle 4, as shown in FIG. is definitely locked. When rotating the handle 4 from this state, the operating pin 8 is pushed in the direction of the arrow, against the biasing direction of the spring 7, as shown in FIG. Then, the engagement between the locking portion 8a and the recess 5a is released, and the state of engagement between the locking portion 8a and the positioning hole 9c changes to the engagement between the shaft portion 8b of the operating pin and the groove 9d, and the handle 4 is moved from this engagement. It can be rotated based on the alignment state.

When the handle 4 is rotating, the protruding part 9b of the handle guide hole 9 is interposed on the left side of the locking part 8a as shown in FIG.
The handle 4 is not locked because the fitting between the handle 4 and the recess 5a is prevented.

As described above, the tilting handle of the bandsaw machine of the present invention has the effect that the switch operation is easy and the cutting operation is easy no matter where the material to be cut is located, and the operability can be significantly improved.

[Brief explanation of drawings]

Figure 1 is a side view of a bandsaw machine equipped with a tilting handle of the present invention, Figure 2 is an enlarged side view of section A in Figure 1,
Fig. 3 is a side view showing the handle in the rotated state in Fig. 2, Fig. 4 is a sectional view taken along the line in Fig. 3 showing the handle in the locked state, and Fig. 5 is a sectional view showing the handle in the unlocked state. , FIG. 6 is a cross-sectional view showing the state in which the handle is being rotated. In the figure, 1 is a housing, 4 is a handle,
5 is a handle support part, 5a is a recessed part, 7 is a spring, 8
is an operating pin, 8a is a locking portion, 8b is a shaft portion, 9 is a handle guide hole, 9a is an arcuate hole, 9b is a protruding portion, 9
c indicates a positioning hole, 9d indicates a groove, and 10 indicates a fulcrum pin.

Claims (1)

[Scope of Claim for Utility Model Registration] A housing 1 is formed by a motor part 1c, a left saw wheel cover 1a and a right saw wheel cover 1b disposed on the left and right sides of the motor part, and a saw disposed within both saw wheel covers. An endless band saw blade 2 is hung around the wheel, and while supporting the grip 3 provided on the left saw wheel cover and the handle 4 provided on the right saw wheel cover, the band saw exposed between both saw wheel covers is supported. In a band saw machine that cuts a material to be cut with a blade part, a handle support part 5 extending in the longitudinal direction of the housing is provided on the upper part of the left saw wheel cover, and the handle support part has a handle equipped with a switch 6 for controlling the rotation of the motor. 4 is supported so as to be movable up and down, and an operating pin 8 is provided at a suitable location on the handle support portion, and is slidable in a direction parallel to the rotation fulcrum pin 10 of the handle and is biased outwardly via a spring 7. A locking portion 8a is provided at the inner end of the operating pin, and a recess 5a is provided on the inner surface of the handle support portion in correspondence with the position where the locking portion is biased, so that the locking portion 8a is provided at the inner end of the operating pin. On the side of the handle corresponding to 8a,
By providing an arcuate hole 9a through which the locking portion 8a can freely engage, and by providing a protruding portion 9b at an appropriate interval at one end of the hole, the locking portion 8a fits into the side surface of the handle. Multiple positioning holes 9
A handle guide hole 9 is formed with a groove 9d whose width is narrower than the diameter of the positioning hole 9c so that the shaft portion 8b of the operation pin is engaged with the handle guide hole 9 which connects the positioning hole 9c and each positioning hole 9c. A tilting type handle for a bandsaw machine, characterized in that the handle is locked in a state in which a locking part 8a of the handle is fitted into a recess 5a of a handle support member and a positioning hole 9c of the handle.