JP2006020743A - Cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter which can prevent a slider from slipping off, and also can prevent a spare blade holder from dropping out in a blade replaceable type cutter which can house spare blades. <P>SOLUTION: The slider 4 of a guider member 2 to which the blade 6 is attached is fitted, and the spare blade holder 5 housing spare blades 7 is inserted in an insertion port under the slider 4. Lock buttons 8 and 9 which are disassembled into two are inserted in a lock button attaching hole 10 and connected. The assembled lock buttons can move in the lock button attaching hole 10, and take two positions of protrusion and retraction. At the retraction position under a locked state, fastening sections which are provided on the lock buttons lock sections 4a and 5a to be locked, and prevent the slider and the lock buttons from slipping off. At the protrusion position of the lock button, locking is released. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a replaceable blade type cutter.

  Among conventional replaceable blade type cutters, as described in Patent Document 1, there is a type in which a plug-in type slider removal prevention tool is mounted. However, such a plug-type slider removal prevention tool has a problem that it is easily lost when replacing the blade. In addition, when the blade is stored in the main body, the direction in which the slider moves and the direction in which the slider drops off from the blade body replacement port are the same direction. There was a risk of the blade popping out and injury to the hand.

  Patent Document 2 describes a cutter that prevents the slider slip-off prevention tool from falling off. This cutter has a structure in which the slider removal prevention tool is rotatably mounted on the main body without being separated from the main body. However, in such a structure, there is a problem that the shape of the slider slip-off preventing device becomes large because it greatly affects the shape of the appearance and requires a mechanism for stopping the rotation. For this reason, there is a problem that the outer shape becomes large and it becomes difficult to use as a hand tool.

In the cutter described in Patent Document 3, a spare blade holder accommodating portion capable of accommodating a spare blade holder is formed below the guide member, and the spare blade holder accommodating the spare blade is disposed so as to overlap the guide member. Accommodate. In addition, the abolition and loss of caps are eliminated. However, the method of attaching the spare blade holder to the body main body prevents the spare blade holder from falling off the body main body by pushing the protrusion provided on the spare blade holder into the hole provided on the main body. Therefore, when used repeatedly, there is a problem that the protrusion provided on the spare blade holder is scraped, and the spare blade holder is easily detached from the body body. In addition, the mechanism for preventing the slider from coming off needs to be provided at a completely different position, and it is difficult to provide a mechanism for preventing sufficient slider from coming off.
Japanese Utility Model Publication No. 56-85666 Japanese Patent Laid-Open No. 10-80580 Japanese Utility Model Publication No. 7-3666

  An object of the present invention is to provide a cutter capable of preventing a slider from falling out and preventing a spare blade holder from falling off in a replaceable blade type cutter capable of storing a spare blade.

  The present invention includes a slider that slides a blade, a guide member that has an inlet / outlet port of the blade in the front and a loading port of the slider in the rear, and slidably loads the slider back and forth, and holds the guide member A holder member, a spare blade holder capable of accommodating a spare blade, a spare blade holder accommodating portion formed on the holder member for accommodating the spare blade holder by sliding, and a lock movably attached to the holder member A cutter having a button, wherein the slider and the spare blade holder are provided with locked portions, and the lock button is positioned at a first position in a direction intersecting a sliding direction of the slider and the spare blade holder. And is attached to the holder member to be movable so as to take the second position. In addition, the lock button locks the locked portion provided on the slider and the spare blade holder at the first position to prevent the slider and the spare blade holder from falling off. A stop portion is provided, and the locking portion is provided so as not to lock the locked portion of the slider and the spare blade holder at the second position.

  According to the present invention, since the slider can be prevented from falling off by operating the lock button, it is possible to eliminate the need for a cap that prevents the slider from dropping off as in the prior art, and at the same time to prevent the spare blade holder from falling off. There is.

  A slider that slides the blade, a guide member that has a blade inlet / outlet in the front and a slider loading port in the rear and slidably loads the slider back and forth, a holder member that holds the guide member, and a spare blade A cutter having a spare blade holder that can be accommodated, a spare blade holder accommodating portion that is formed on a holder member and accommodates the spare blade holder by sliding, and a lock button movably attached to the holder member. By this operation, the locking portion provided on the lock button locks the locked portion provided on the slider and the spare blade holder, respectively, thereby preventing the slider and the spare blade holder from falling off.

  FIG. 1 is an exploded perspective view for explaining an embodiment of the cutter of the present invention. In the figure, 1 is a main body portion, 2 is a guide member, 2a is a blade inlet / outlet, 2b is a slider loading port, 2c is a notch, 3 is a holder member, 4 is a slider, 4a is a locked portion, and 4b is a slider 5 is a spare blade holder, 5a is a locked portion, 6 is a blade, 7 is a spare blade, 8 and 9 are lock buttons, and 10 is a lock button mounting hole.

  The guide member 2 is attached to the holder member 3, and the main body 1 is constituted by the guide member 2 and the holder member 3. The guide member 2 is usually formed of a metal plate, but other materials may be used. The holder member 3 is composed of a composite material in which a resin material or a light alloy is integrally molded, or a non-slip material such as a synthetic rubber is attached to a part thereof.

An opening is formed in the longitudinal direction on the upper surface of the guide member 2, and serrated irregularities are formed on the edge of the opening, so that the slider 4 that moves while being guided by the opening can be locked stepwise. This is the same structure as that of a general cutter, and the slider 4 mounted by inserting the hole formed in the rear portion of the blade 6 into the protrusion provided in the slider is loaded from the loading port 2b, and the operation portion 4b. The blade 6 can be taken in and out of the entrance / exit by sliding the slider 4 back and forth by operating.

  The spare blade holder 5 is inserted from a rear portion of the main body 1 into a spare blade holder housing formed in the main body 1. FIG. 2 is a side view of the main body 1 as viewed from the rear. In this embodiment, the spare blade holder accommodating portion is formed as a space portion formed below the guide member 2 and accommodates the spare blade 7. The spare blade holder 5 (FIG. 1) thus accommodated is accommodated in the main body 1 so as to slide from the spare blade holder insertion port 11.

  Returning to FIG. The slider 4 is formed with a locked portion 4a as a stepped portion, and the spare blade holder 5 is formed with a locked portion 5a as a notch. The locked portions 4a and 5a will be described later. To do. Further, the lock button 8 is attached from above, and the lock button 9 is attached so as to be inserted into the lock button attachment hole 10 formed in the main body 1 from below. The lock buttons 8 and 9 are provided with locking portions that can be engaged and disengaged with the locked portions 4a and 5a, respectively, but are not shown in FIG. Each locked portion will also be described later.

  In this specification, the entrance / exit 2a side of the blade of the guide member 2 is called the front, the opposite side is called the rear, the opening side of the guide member 2 is called the upper side, and the opposite side is called the lower side.

  3 to 5 are diagrams for explaining the lock button, FIG. 3 is an exploded view, FIG. 4 is a side view in an assembled state, FIG. 5A is a cross-sectional view taken along the line P-P in FIG. FIG. 5B is a cross-sectional view taken along line QQ in the drawing. In the figure, 8 is an upper lock button, 8a is a collar, 8b is a locking part, 8c is an outer protrusion, 8d is an inner protrusion, 8e is a rib, 8f is a ridge, 9 is a lower lock button, and 9a is A collar part, 9b is an engaging part, 9c is an outer protrusion, 9d is an inner protrusion, and 9e is a rib.

  The assembly of the lock button will be described. The upper lock button 8 is inserted from the upper side of the lock button mounting hole 10 in FIG. 1, and the lower lock button 9 is inserted from the lower side of the lock button mounting hole 10 in FIG. The semi-cylindrical outer protrusion 8c of the lock button 8 is inserted into the gap between the outer protrusion 9c and the inner protrusion 9d of the lock button 9, and the lock buttons 8, 9 are coupled. Although not shown, the outer protrusion 8c is formed with a protrusion 8f in the circumferential direction, and a claw-like protrusion (see FIG. 10) is formed inside the tip of the outer protrusion 9c. When coupled, the claw-like projections get over the ridges 8f, so that the projections are less likely to come off, and the coupled state is maintained. However, the maintenance of the coupling structure and the coupling state is not limited to the above-described structure, and an appropriate structure can be adopted. Further, in this embodiment, the lock button is configured as two members and is integrally coupled, but may be configured as one member or may be divided into three or more members. Of course. In short, it is important that a locking portion described later is provided on the lock button.

  The ribs 8e, 9e provided on the lock buttons 8, 9 are formed along the groove formed on the inner surface side of the lock button mounting hole, so that the lock button can be moved stably. Further, the inner protrusion 8d of the lock button 8 is frictionally engaged with the straight portion of the semicircular lock button mounting hole, in this embodiment, on the side surface of the guide member using its own elasticity, so that the lock button is locked. It is provided to make it easy to take two positions, the position and the release position, and by taking a claw part in the part facing the side surface of the guide member at the tip, it can take two positions more reliably And the position can be maintained. The ribs and the inner protrusions 8d may be omitted.

  The locking portion of the lock button will be described. FIG. 4 which is a side view of the assembled lock button as viewed from the rear, shows two locking portions. That is, the locking button 8 is formed with a locking portion 8b and protrudes to the inside of the guide member through a notch 2c (FIG. 1) formed on the side surface of the guide member. A locking portion 9b is formed on the lock button 9 and protrudes inside the spare blade holder accommodating portion below the guide member. The locking portion 8b engages / disengages with the locked portion 4a (FIG. 1) of the slider, and the locking portion 9b engages / disengages with the locked portion 5a of the spare blade holder.

  The lock button is operated to take two positions, a lock position and an unlock position. In the locked position, the locking portion 8b of the lock button is at a position where the locked portion 4a of the slider can be locked, and the slider can be prevented from coming off when the slider is retracted. Further, the locking portion 9b of the lock button locks the locked portion 5a of the spare blade holder so that the spare blade holder is locked and cannot be pulled out. This position is a position of the cutter in use. In the unlocked position, the locking button locking portion 8b is in a position where the locked portion 4a of the slider is not locked, and the slider can be retracted to remove the slider. Further, since the locking portion 9b of the lock button does not lock the locked portion 5a of the spare blade holder, the spare blade holder can be pulled out. Use this position when replacing the blade.

  The lock position of the lock button will be described with reference to FIGS. 6 is a perspective view, FIG. 7 is a plan view seen from above, FIG. 8 is a side view seen from the side, FIG. 9 is a side view seen from the rear, and FIG. 10 is a sectional view taken along line AA in FIG. 11 is a cross-sectional view taken along line BB in FIG. 7, FIG. 12 is a cross-sectional view taken along line CC in FIG. 9, and FIG. 13 is a cross-sectional view taken along line DD in FIG. In the figure, the same parts as those in FIGS.

  The assembled lock buttons 8 and 9 take the lowered position in the lock position. That is, when the lock button 8 is pushed from above, the lock position is reached. At this position, as in the embodiment, the surfaces of the collar portions of the lock buttons 8 and 9 do not protrude from the upper surface and the lower surface of the holder member. In an example of the aspect which does not protrude, the surface of each collar part of the lock buttons 8 and 9 is flush with the upper and lower surfaces of the holder member. In the state of use of the cutter, the lock position is preferably set. Therefore, in this state, the lock buttons 8 and 9 should not protrude from the upper surface and the lower surface of the holder member.

  10 and 12 show how the slider 4 is prevented from coming out in the locked state. In the lowered position of the lock buttons 8 and 9, the protruding locking portion 8 b engages the locked portion 4 a formed as a step at the rear of the slider 4 through the notch 2 c (FIG. 1) formed in the guide member. It protrudes to a position where it can be stopped, and the locking portion 8b is in a state where it can collide with the locked portion 4a. Therefore, when the slider 4 is moved backward, the slider 4 is prevented from moving backward at the position where the locked portion 4a is brought into contact with the locking portion 8b. Therefore, even if the slider 4 is retracted, the slider 4 does not come out of the slider loading port.

  FIGS. 11 and 13 show how the spare blade holder 5 is prevented from coming out in the locked state. At the lowered position of the lock buttons 8, 9, the protruding locking portion 9 b enters the recessed locked portion 5 a formed in the spare blade holder 5. Therefore, the spare blade holder 5 is locked and the spare blade holder 5 cannot be pulled out.

  The release position of the lock button will be described with reference to FIGS. 14 is a perspective view, FIG. 15 is a plan view seen from above, FIG. 16 is a side view seen from the side, FIG. 17 is a side view seen from the rear, and FIG. 18 is a sectional view taken along line EE in FIG. 19 is a cross-sectional view taken along line FF in FIG. In the figure, the same parts as those in FIGS.

  The lock buttons 8, 9 take the raised position in the release position. That is, when the lock button 9 is pushed up from below, the release position is reached. In this position, as in the embodiment, the surface of the collar portion of the lock button 8 protrudes from the upper surface of the holder member.

  18 and 19 show how the slider 4 and the spare blade holder can be pulled out in the released state. At the raised position of the lock buttons 8 and 9, the locking portion 8 b rises and the locked portion 4 a of the slider 4 is not locked. Therefore, when the slider 4 is retracted, the slider 4 can be retracted and pulled out without the locked portion 4a being locked by the locking portion 8b, and the blade can be replaced. The locking portion 9b also rises and comes out of the locked portion 5a of the spare blade holder 5 and becomes a position where the locked portion 5a is not locked. Therefore, the spare blade holder 5 can be pulled out.

  In the present invention, the structure for moving the slider may be any structure. In this embodiment, the slider is moved forward when the slider operation button is pushed forward, moved backward when pulled backward, and the slider is locked in the neutral position. A slider having an appropriate structure such as a simple structure in which the slider is locked with a rotating screw can be used.

  By operating the lock button, the slider and the spare blade holder can be locked at the same time and can be released, so that it can be applied to a cutter using the spare blade holder.

It is a disassembled perspective view for demonstrating one Example of the cutter of this invention. It is the side view which looked at the main-body part 1 from back. It is an exploded view of a lock button. It is a side view in the assembled state. 5A is a cross-sectional view taken along the line P-P in FIG. 4, and FIG. 5B is a cross-sectional view taken along the line Q-Q in the figure. It is a perspective view of the cutter in a locked state. It is the top view which looked at the cutter in a locked state from the top. It is the side view which looked at the cutter in a locked state from the side. It is the side view which looked at the cutter in a locked state from back. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. FIG. 10 is a sectional view taken along line D-D in FIG. 9. It is a perspective view of the cutter in a release state. It is the top view which looked at the cutter in a cancellation | release state from the top. It is the side view which looked at the cutter in the cancellation | release state from the side. It is the side view which looked at the cutter in a release state from back. It is the EE sectional view taken on the line of FIG. It is the FF sectional view taken on the line of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Main-body part, 2 ... Guide member, 2a ... Blade entrance, 2b ... Slider loading port, 2c ... Notch, 3 ... Holder member, 4 ... Slider, 4a ... Locked part, 4b ... Operation part of slider 5 ... Spare blade holder, 5a ... locked portion, 6 ... blade, 7 ... spare blade, 8 ... upper lock button, 8a ... collar, 8b ... locking portion, 8c ... outer projection, 8d ... inner projection 8e ... ribs, 8f ... ridges, 9 ... lower lock button, 9a ... collar, 9b ... locking part, 9c ... outer projection, 9d ... inner projection, 9e ... rib, 10 ... lock button mounting hole, 11 ... Spare blade holder insertion slot.

Claims (5)

A slider that slides the blade, a guide member that has the inlet / outlet of the blade in the front and a loading port of the slider in the rear and guides the slider so as to slide back and forth, and a holder member that holds the guide member; A cutter having a spare blade holder capable of accommodating a spare blade, a spare blade holder accommodating portion which is formed on the holder member and accommodates the spare blade holder by sliding, and a lock button movably attached to the holder member The slider and the spare blade holder are provided with locked portions, and the lock button has a first position and a second position in a direction intersecting a sliding direction of the slider and the spare blade holder. It is attached to the holder member so as to be movable so as to take a position. In the first position, the lock button locks the locked portion provided in the slider and the spare blade holder to prevent the slider and the spare blade holder from falling off. And the locking portion is provided so as not to lock the locked portion of the slider and the spare blade holder at the second position. The cutter according to claim 1, wherein the lock button is movable in a direction orthogonal to a plane on which the blade slides. The lock button is configured to slide and move through a through hole formed in the holder member, and is configured by combining two members formed with a flange portion larger than the through hole. The cutter according to claim 1 or 2, characterized by the above. In the first position, the surface of the collar part of the two members does not protrude from the holder member, and in the second position, the surface of one collar part of the two members is from the holder member. The cutter according to claim 3, which protrudes. The cutter according to any one of claims 1 to 4, wherein an upper surface of the blade loaded in the guide member and an upper surface of the blade accommodated in the spare blade holder are parallel to each other.

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