JPS6232517Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an improvement in the structure of a hand-held cutter that can accommodate a replacement blade.

BACKGROUND ART Conventionally, as shown in FIG. 1, a cutter blade 4 is held between the distal end portion 2a of a two-layered plate-like holder 2, and the cutting edge 4a is made to protrude from the notch 2b of the distal end portion 2a. A cutter 1 is known in which the cutter 1 is fitted into a sleeve 3 and held in place by a stopper 2b at the rear end of the holder.

By the way, this type of cutter does not have its own replacement blade, and if the cutting edge 4a at one end of the cutter blade 4 that protrudes from the notch 2b of the holder 2 is damaged, the blade 4 must be removed from the holder 2. For use, the lever blade 4 is held again in the holder 2 so that the cutting edge 4a at the other end protrudes from the notch 2b. Therefore, if both ends of the cutter become damaged, it is necessary to replace it with a replacement blade, so if you use the cutter frequently, you will need to prepare a large number of replacement blades, which is inconvenient for portable use. It was hot.

Purpose of the invention In order to solve the above-mentioned problems, the purpose of the present invention is to provide a cutter that can be equipped with a large number of replacement blades and is easy to handle.

Structure, Function, and Effect of the Invention In order to achieve the above object, the present invention has a cutter blade having a notch, which is held in a holder consisting of a pair of divided bodies, and when the cutting edge of the blade is damaged, the blade is moved along the notch. It is constructed so that it can be broken and the next cutting edge can be used.

That is, a cutter blade that has engaging holes at regular intervals in the longitudinal axis direction and has a cutting cut that cuts across each adjacent engaging hole except at least between adjacent engaging holes at the base end, and a cutter blade that can be freely combined. Consisting of a pair of divided bodies, each of the divided bodies has an engaging protrusion that engages at least two adjacent engaging holes of the blade on one opposing surface thereof, and a notch that allows the tip of the blade to protrude. have,
The blade is configured to include a holder for positioning and holding the blade, and a sleeve into which the holder, which is a combination of the pair of divided bodies, is slidably fitted.

According to the above structure, the engagement protrusion of the divided body of the holder is engaged with the engagement hole of the cutter blade having the notch, the blade is held in the holder, and the divided body of the holder is brought into the combined state with the sleeve. When the cutting edge is damaged, the holder can be removed from the sleeve, the cutter blade in the divided body can be folded along the cut, and the new cutting edge can be held in the holder by protruding from the notch of the holder. Therefore, it is possible to store and hold at least as many spare blades as there are cuts on the cutter blade, and there is no need to carry the spare blades separately from the cutter, making it convenient to carry, and the blade tip can be easily replaced. I can do it. Also, the storage space for replacement blades is small. Therefore, the intended purpose can be achieved.

Embodiments The present invention will be specifically described below based on embodiments shown in FIG. 2 and below.

As shown in FIG. 2, the cutter 11 according to this embodiment has a cutter blade 14 that is connected to a pair of divided bodies 12a.
-1, 12a-2 held in a holder 12,
The holder 12 is fitted inside the sleeve 13, and the tip of the holder 12 is made to protrude from the sleeve 13 as needed, so that the cutting edge 14a of the cutter blade 14 protruding from the holder 12 is used.

The cutter blade 14 has a substantially rectangular plate shape as shown in FIG. 3, and has a cutting edge 14a on one side along the longitudinal axis. This blade 14 has engagement holes 14d, . Breaking cut 14 that crosses between 14d and 14d
b, so that the blade 14 can be broken and broken at the cut 14b. That is, when the cutting edge 14a is damaged due to use, the damaged part of the cutting edge 14 is broken off along the cut 14b and removed, and a new cutting edge 14a adjacent to the removed part is used. can do.

As shown in FIG. 4, the pair of divided bodies 12a-1 and 12a-2 of the holder 12 that holds the blade 14 are approximately symmetrical, and one side of the holder 12 along its longitudinal axis is connected via a hinge portion 12i. It is connected so that it can be opened and closed.

As shown in FIGS. 5, 7, and 8, this divided body 12
One of the divided bodies 12a- between a-1 and 12a-2
The blade 1 has a total of three engaging protrusions 12f, 12g, and 12h at regular intervals along the longitudinal axis direction of the divided body 12a-2 at the distal end of the opposing surface of the blade 1.
4 so that it can be engaged with each of the engagement holes 14d, 14d, 14d. The engaging protrusions 12f, 12g,
12h, respectively.
12e. The pair of divided bodies 12a-1,
The tip of the holder in which the holder 12a-2 is folded and combined with the hinge 12i as a boundary has a notch 12k diagonally cut out at one corner, and the blade 14
The cutting edge 14a at the tip of the blade protrudes, while the rear end has a stopper portion 12b that is thicker than the rest of the blade except for the rear end. Furthermore, the outer surface of each of the intermediate parts except for the tip and rear ends has protrusions 12j, 12j that protrude outward, as shown in FIGS. 5 and 6.

The holder 12 is fitted into a substantially rectangular cylindrical sleeve 13 having side surfaces shown in FIG. 9 so as to be slidable along the longitudinal axis. The protrusions 12j on the outer surface of each of the divided bodies are in sliding contact with the inner surface of the sleeve 13 with slight pressure, so that the holder 12 can be held at any position along the longitudinal axis with respect to the sleeve 13, and the stopper portion 12b to prevent it from slipping out.

Therefore, the engagement hole 1 of the cutter blade 14
Engagement protrusions 12f, 12g, 12h of one divided body 12a-2 of holder 12 on 4d, 14d, 14d.
are engaged to cause the cutting edge 14a at the tip of the blade 14 to protrude from the notch 12k as shown by the dashed line in FIG. , 12h as the other divided body 1
It engages with the engagement recesses 12c, 12d, and 12e of 2a-1, respectively, to clamp and hold the blade 14 within the holder 12. Then, insert the holder 12 into the sleeve 1 from the tip.
3 so that the divided bodies 12a-1 and 12a-2 constituting the holder 12 are held in a closed state, and the blade 14 is safely and reliably housed within the holder 12. If the holder notch 12k, that is, the cutting edge 14a of the blade 14, protrudes from the tip of the sleeve 13, cutting operations can be performed safely, while if the tip of the holder notch 12k is located within the sleeve, it can be stored safely. When the cutting edge 14a is damaged due to use, the holder 12 is pulled out from the sleeve 13, the divided bodies 12a-1 and 12a-2 are opened, and the blade 14 is cut only in the portion having the damaged cutting edge 14a among the blades partitioned by the cuts 14b.
The blade 14 is broken along line b. Then, return the new cutting edge 14a to the holder notch 12k.
With the blade 14 protruding from the divided body 12a-1,
12a-2 and fitted into the sleeve 13, cutting work etc. can be performed with the new cutting edge 14a. Further, when the last cut 14b of the blade 14 is broken and broken, leaving only the rear end 14e and the cutting edge 14a is damaged, the blade 14 is rearranged upside down as shown in FIG. If the cutting edge 14a is maintained at the same position, cutting operations can still be performed with the new cutting edge 14a.

According to the above embodiment, if the cutting edge 14a is damaged, the cutting edge 14 can be broken and broken along the cut 14b in each section including the damaged cutting edge, and a new cutting edge 14a can be created.
4a can be used immediately. Therefore, approximately the same number of replacement blades as the number of cuts 14b are held in the holder, and the storage space for them is small, and the replacement work is easy to handle, achieving the intended purpose. I can do it.

Note that the present invention is not limited to this embodiment, and can be implemented in various other ways. For example, the divided bodies may be constructed of separate and independent members without being connected by a hinge part, and a locking part may be provided as appropriate so that they can be held together or separated. Further, the two divided bodies are not limited to a symmetrical shape.

[Brief explanation of drawings]

Fig. 1 is a front view of a conventional cutter, Fig. 2 is a front view of a cutter according to an embodiment of the present invention, and Fig. 3 is a front view of a cutter according to an embodiment of the present invention.
The figure is a front view of the cutter blade stored in the holder of the cutter shown in Figure 2, Figure 4 is an inner exploded view showing the open state of the pair of divided bodies of the holder, and Figure 5 is the unfolded state of Figure 4. FIG. 6 is an enlarged plan view of the divided body in the open state shown in FIG. 4;
7 and 8 are an enlarged sectional view taken along the - line and - line enlarged sectional view of FIG. 4, respectively, and FIG. 9 is an enlarged side view of the sleeve. 11...Cutter, 12...Holder, 12a-
1, 12a-2...divided body, 12f, 12g, 1
2h...Engaging protrusion, 12k...Notch, 13...
Sleeve, 14... cutter blade, 14a... cutting edge, 14b... cut, 14d... engagement hole.

Claims (1)

[Claims for Utility Model Registration] For a cutter having engaging holes at regular intervals in the longitudinal axis direction and having a breaking cut that cuts across each adjacent engaging hole except at least between adjacent engaging holes at the base end. It consists of a blade and a pair of split bodies that can be freely combined, and has engaging protrusions on opposing surfaces of the two split bodies that engage with at least two adjacent engagement holes of the blade, and a tip of the blade. It has a notch that protrudes,
A cutter comprising: a holder for positioning and holding the blade; and a sleeve into which the holder, which is a combination of the pair of divided bodies, is slidably fitted.