JPH0242403Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a saw equipped with a saw blade holder.

[Conventional technology and its problems]

A conventional saw has a saw blade holder made of a U-shaped plate bent and connected to a handle, and the saw blade is held between opposite sides of the holder to prevent the saw blade from bending. be.

Saws equipped with such a holder generally have both the saw blade and the holder fixed to the handle, so if the saw blade is damaged, the entire saw must be replaced, which is uneconomical and It is necessary to have a variety of saws depending on the type of meat, which makes it inconvenient to carry.

Conventionally, to deal with such problems,
Japanese Utility Model Publication No. 53-1674 proposes a saw in which the saw blade can be attached to and detached from a holder. This saw is
An arc-shaped locking part is provided inside the inner groove of the holder,
A recess that engages with the locking portion is formed at the base end of the saw blade, and the saw blade is attached by engaging the recess and the engaging portion.

However, in this proposed saw blade, the locking part provided in the groove of the holder is not visible from the outside, so the proximal end of the saw blade is inserted into the holder and the locking part is hidden from view. There is a disadvantage that it is necessary to engage the recess with the recess, and the operation of engagement is time-consuming.

In addition, since it is necessary to provide an arc-shaped protrusion at the base end of the saw blade to form a recess, the length of the saw blade becomes large, and in order to obtain the required length of the saw blade, The disadvantage is that it becomes long. Such shortcomings are
When the holder and the saw blade are folded and stored inside the handle, there is a problem in that the length of the handle in which the saw blade is housed needs to be increased, which increases the shape of the saw.

Therefore, an object of this invention is to provide a saw with a holder that allows the saw blade to be easily replaced and that allows the saw blade to be formed up to the base of the saw blade.

[Means for solving problems]

In order to solve the above problems, this idea
One of the opposing sides of the saw blade holder protrudes in the width direction from the other opposing side near the base end connected to the grip handle, and a dowel is provided at the tip of the inner surface of the protruding part, and the base of the saw blade is A circular hole into which the dowel fits is formed in the saw, and the distance from the dowel to the other opposing side is larger than the distance from the circular hole to the edge of the root portion of the saw blade.

[Effect]

In the above structure, the root of the saw blade faces the holder, the circular hole is fitted into the dowel, the saw blade is rotated using the dowel as a fulcrum, and the saw blade is housed between the opposite sides of the holder. The body can be irremovably held in the holding device.

Conversely, if the saw blade is rotated in the direction away from the holder using the dowel as a fulcrum from the above state, the dowel and the circular hole can be easily disengaged from each other.

In the above structure, since the circular hole is fitted into the dowel of the outwardly projecting part, the saw blade can be easily attached.

Furthermore, since the circular hole can be provided close to the root of the saw blade, the saw blade can be formed close to the root.

〔Example〕

In FIGS. 1 and 2, 1 is a saw blade, 2 is a saw blade holder, and 3 is a handle for supporting the holder 2.

The holder 2 is formed by bending a plate material into a U shape, and has opposing sides 2a and 2b formed by the bending.
The saw blade 1 is held between them.

One of the opposing sides 2a is the grip handle 3.
The vicinity of the proximal end connected to the protrusion 4 protrudes in the width direction from the other opposing side 2b, and a dowel 7 is provided at the tip of the inner surface of the protrusion 4.

Furthermore, the distance between the opposing sides 2a and 2b is slightly smaller than the wall thickness of the saw blade 1 at the tip of the holder 2, so that the fitted saw blade can be held by the tip of the holder and released freely. Prevents it from slipping out.

The saw blade 1 has a saw blade 5 on one side, and a circular hole 6 into which the dowel 7 fits is formed near the corner of the base.

Here, the distance from the dowel 7 to the other opposing side 2b is larger than the distance from the circular hole 6 to the root edge of the saw blade.

To attach the saw blade 1 to the holder 2, as shown by the chain line in FIG. 1 is rotated around the dowel 7 at the tip of the holder 2 and stored between the opposing sides 2a and 2b. At this time, since the protrusion 4 acts as a guide surface when setting and rotating the saw blade 1, the saw blade 1 can be easily attached.

On the other hand, when removing the saw blade 1, perform the operation opposite to the above.

In the illustrated saw, a vertical groove 8 is formed in the grip handle 3, the holder 2 fits into this vertical groove, the rear end is pivotally supported by a pin 9, and the saw blade 1 has a blade. The holder 2 can be folded together with the teeth 5 on the inside and fitted into the longitudinal groove 8.

Reference numeral 10 denotes a rocking lever supported by a pin 11 on the back side of the grip handle 3. At the tip of the lever, there is a pawl 12 facing toward the longitudinal groove 8. This pawl is attached to the rear end of the back of the holder 2 It locks into the notch recess 13 and makes folding of the holder 2 impossible.

14 is a push part at the rear end of the lock lever 10;
5 is a recess for pushing down the pusher part; 16 is a coil spring loaded into the vertical groove 8 to push up the pusher part 14 side of the lock lever; and 17 is fixed to the vertical groove 8 on both sides of one opposing side 2a of the holder 2. The located reinforcing metal plate 18 is its fixing pin, and this pin contacts the rear edge of the holder when the holder 2 and the grip handle 3 are in a straight state, and prevents the holder from bending upward. .

〔effect〕

As described above, in the saw of this invention, one of the opposite sides of the holder protrudes from the other side, and the circular hole of the saw blade is fitted into the dowel provided on the protruding part, so that the dowel and the circular hole are fitted externally. The holes can be fitted, and the saw blade can be easily attached and detached.

Further, since the protrusions on the opposite sides can be used as guide surfaces when fitting the circular holes and rotating the saw blade, there is an advantage that the saw blade can be attached stably.

Furthermore, the dowels and circular holes can be provided close to the proximal end of the holder and the edge of the root of the saw blade, and the saw blade can be formed close to the root of the saw blade. It is possible to form a compact holding tool.

[Brief explanation of drawings]

Figure 1 is a front view of an example of a saw according to the present invention, Figure 2 is a front view of an example of a saw according to the present invention;
The figure is a partially cutaway plan view of the main part of the same. 1...Saw blade, 2...Saw blade holder, 2a, 2b...
...Opposing side, 3...Grip handle, 4...Protrusion, 5...Saw blade, 6...Circular hole, 7...Dowel.

Claims (1)

[Scope of utility model registration request] In a saw in which a saw blade holder formed by bending a plate material into a U-shape is connected to a handle, and the saw blade is held between opposing sides formed by the bending of the holder, one of the opposing sides of the saw blade holder is , protruding in the width direction from the other opposing side in the vicinity of the proximal end connected to the grip handle, providing a dowel at the tip of the inner surface of the protruding part, and a circle in which the dowel fits into the root of the saw blade. A saw characterized in that a hole is formed, and the distance from the dowel to the other opposing side is larger than the distance from the circular hole to the root edge of the saw blade.