JP3483605B2 - Angle cutting cutter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used, for example, in the production of decorative window frames (commonly called mats) and building models to be put in a frame, and is used for cardboard, foam styrene plate materials, etc. Relates to an angle cutting cutter used for so-called angle cutting so that an inclined surface of a predetermined angle can be obtained, and more particularly to improvement of a blade raising / lowering type in which a blade is vertically moved from a housing position to a protruding position. .

[0002]

2. Description of the Related Art Conventionally, the following type of angle cutting cutter has been known. (1) Blade fixed type in which the blade is fixed in a protruding state (for example, US Pat. No. 3,973,459, US Pat. No. 4,0).
38,751). (2) Blade body elevation type in which the blade body is rotated up and down from the housing position to the protruding position (for example, US Pat. No. 3,527,131).
U.S. Pat. No. 3,996,827, U.S. Pat. No. 4,
158, 977). (3) A blade raising / lowering type in which the blade is moved up and down in a straight line from the housing position to the protruding position (for example, Japanese Utility Model Laid-Open No. 57-136694). Compared with the fixed blade type, the blade elevation type and the blade elevation type are extremely safe because the blade can be placed in the storage position, and the amount of protrusion of the blade can be adjusted, so that the object to be cut can be adjusted. It is easy to perform the cutting work according to the thickness and cutting situation. The blade lifting type can raise and lower the blade linearly compared to the blade elevation type, so the cutting angle of the blade with respect to the cutting object can always be kept constant regardless of the thickness of the cutting object. In addition to being able to do so, it is possible to accurately cross at the cutting crossing point and keep the cutting resistance constant. However, the conventional blade body lifting type angle cutting cutter basically has a main body slidably mounted on an object to be cut, and a guide body inclined to the main body by a predetermined angle. It is composed of a sliding body that can move up and down along the guide body and a blade body that is detachably provided on the sliding body and cuts an object to be cut, and grips both the sliding body and the main body to perform cutting work. Since I had to do it, my hands got tired and it was difficult to give an appropriate cutting force, so I could not perform efficient cutting work.

[0003]

SUMMARY OF THE INVENTION The present invention was devised in order to solve the above problems in view of the above problems, and the purpose thereof is to enable efficient cutting work. It is to provide the angle cutting cutter.

[0004]

The angle cutting cutter of the present invention is basically provided with a main body slidably mounted on an object to be cut and a main body inclined by a predetermined angle. A guide body, a slide body that can be moved up and down along the guide body and detachable from the upper side of the guide body, a grip body that is provided on the slide body and that can be gripped with one hand above the main body, and can be attached to and detached from the slide body. A blade body that can be installed in such a way that it can be stored in the main body and a protruding position that projects from the lower side of the main body and cuts the object to be cut, and raises the sliding body relative to the main body to raise the blade body. It is characterized in that it is composed of an elastic body which is located in the storage position and allows the sliding body to be detached from the main body.

[0005]

After the main body is placed on the object to be cut, the grasping body is grasped by one hand and horizontally moved in a predetermined direction while pressing the grasping body against the elastic body. When the grip body is pressed against the elastic body, the slide body is guided by the guide body, so that the grip body, the slide body, and the blade body descend relative to the main body, and the blade body is located from the bottom surface of the main body. It protrudes by a fixed amount and bites into the object to be cut. When the grip body is horizontally moved in a predetermined direction in such a state,
The body is slid with respect to the object to be cut, and the object to be cut is cut by the blade protruding by the predetermined amount. That is, the object to be cut is so-called angle-cut so that an inclined surface having a predetermined angle can be obtained. At this time, the gripping body, the sliding body, and the blade function as a so-called one cutter, and the main body functions as a so-called guide that follows this and keeps a predetermined inclined state.
Therefore, the main body does not need to be grasped and moved together with the grasping body. When the hand holding the grip body is released, the grip body, the sliding body, and the blade body are automatically raised by the elastic body with respect to the main body, and the blade body is returned to the storage position. When the blade is in the storage position, it is impossible to cut the object to be cut,
There is no fear that the operator will inadvertently touch the blade and get injured.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an angle cutting cutter according to an embodiment of the present invention, showing a state in which a blade is stored. Figure 2
1. The side view of FIG. FIG. 3 is a plan view of FIG. 1. FIG. 4 is a vertical side view of FIG. 1. FIG. 5 is an exploded perspective view.
FIG. 6 is a vertical cross-sectional side view showing a state in which the blade body is projected. Figure 7
Is a front view of FIG. 6. FIG. 8 is a bottom view showing a mounting state of the sliding body and the blade body. The angle cutting cutter 1 is mainly composed of a main body 2, a guide body 3, a sliding body 4, a gripping body 5, a blade body 6 and an elastic body 7. The main body 2 is slidably mounted on the object to be cut A, and in this example, it is made of synthetic resin and is provided with upper and lower and front, rear, left and right walls 8 to 13, and the front wall 10 is 45 The upper wall 8 and the front wall 10 are inclined at an angle, and a recess 14 and a housing cavity 15 are formed in a stepped state across the upper wall 8 and the front wall 10, and are connected to the recess 14 on the front side of the lower wall 9. An elongated hole 16 is formed so as to penetrate therethrough. The main body 2 is provided with a floating prevention means 17 and a baseline display means 18. The rising prevention means 17 prevents the blade body 6 in a protruding state from rising and presses the workpiece A. In this example,
It comprises a bridge 19 formed by the elongated hole 16 of the main body 2 and a protrusion 20 protruding in the middle thereof. In this example, the base line display means 18 displays a base line at the time of cutting, and in this example, a base mark 21 formed across the bridge 19 and the protrusion 20 to indicate the center line of the blade body 6,
A base mark 2 which is formed on the left and right of the front side of the lower wall 9 and indicates the cutting line X
It consists of 2 and. The guide body 3 has a predetermined angle θ with respect to the main body 2.
In this example, it is provided separately from the main body 2, is provided at an inclination of 45 degrees to the main body 2, and is manufactured by pressing a stainless steel plate.
3, inclined bottom wall 24, left and right side walls 25, and left and right upper walls 265
The inclined bottom wall 24, the side wall 25, and the upper wall 26 form a guide groove 27 having a substantially C-shaped cross section, and the inclined bottom wall 24 has a concave groove 28 except the lower portion. Inclined bottom wall 2
4 is formed with an insertion hole 29 penetrating therethrough. The guide body 3 is fitted in the recess 14 of the main body 2 and attached to the main body 2 by the tapping screw 30 and the bolts and nuts 31. The sliding body 4 is capable of moving up and down along the guide body 3 and detachable from the upper side thereof. In this example, it is made of synthetic resin, and the left and right sliding pieces 32, the protruding pieces 33, and the mounting pieces 34 are formed. And the insertion piece 35, the left and right sliding pieces 32 and the protruding piece 33 have a convex cross-section that fits in the guide groove 27 of the guide body 3, and the insertion piece 35 has the insertion hole 29 of the guide body 3.
Is inserted into the accommodation cavity 15 of the main body 2. An indwelling means 36 and a protrusion amount display means 37 are provided between the guide body 3 and the sliding body 4. The detention means 36 is
The sliding body 4 is temporarily placed in the storage position, and in this example, the notch 38 formed in the upper left wall 26 of the guide body 3 and the protruding piece 33 of the sliding body 4 are opened at the left side and the lower side. The spring accommodating cavity 39 includes a mountain-shaped leaf spring 40 in which the protruding mountain portion accommodated therein is elastically fitted in the notch 38. The protrusion amount display means 37 displays the protrusion amount S of the blade body 6. In this example, the scale 41 is formed on the upper left wall 26 of the guide body 3 and indicates the protrusion amount S of the blade body 6 for each 1 mm.
And a base mark 42 formed on the upper surface of the protruding piece 33 of the sliding body 4.
And consists of. The gripping body 5 is provided on the sliding body 4 and is located above the main body 2 and can be gripped by one hand. In this example, the gripping body 5 is provided separately from the sliding body 4 and is made of an aluminum alloy. It has a relatively large bowl-like shape that fits in the hand, and a large number of non-slip irregularities 43 are formed on the outer periphery, and are attached to the attachment pieces 34 of the sliding body 4 by screws 44. Between the main body 2 and the grip body 5, adjustment means 45 for adjusting the protrusion amount S of the blade body 6 is provided. The adjusting means 45 includes a shoulder portion 46 provided on the left wall 12 of the main body 2, a seat hole 47 formed in a lower left portion of the grip body 5, and a screw hole 48 following the seat hole 47.
It is composed of a knob bolt 49 screwed to this, and a tapered compression coil spring 50 interposed between the knob bolt 49 and the seat hole 47. The blade body 6 is detachably provided on the sliding body 4 and acquires a storage position in which it is stored in the main body 2 and a projecting position for projecting from the lower side of the main body 2 and cutting the object A to be cut. In the example, it is made of cutlery steel, has a square plate shape, and has a single blade 51 formed on each side and four V-shaped cutting edges 52 forming a right angle at each corner. The blade body 6 is detachably provided on the lower side of the sliding body 4 by the attaching / detaching means 53. The attachment / detachment means 53 includes a rotation-stopping hole 54 having a rotation-stopping portion formed on the front side of the sliding body 4, and four rotation-stopping pins 5 projecting downwardly around this and having a short front side and a long rear side.
5, a through hole 56 formed in the center of the blade body 6, and four rotation stopping holes 5 formed around the through hole 56 and fitted into the rotation stopping pins 55.
7, a bolt 58 which is inserted into the through hole 56 of the blade body 6 and the rotation stop hole 54 of the sliding body 4 and has a rotation stop portion, and a knob nut 59 which is screwed into the bolt 58. The attaching / detaching means 53 is
The blade body 6 is fixed so that one V-shaped blade edge 52 projects from the front side of the sliding body 4, and at this time, both sides of the V-shaped blade edge 52 make a predetermined angle α (45 degrees) with respect to the cutting line X. The same conditions are satisfied even if the other V-shaped cutting edge 52 is projected from the front side of the sliding body 4. Elastic body 7
Is for allowing the sliding body 4 to move up relative to the main body 2 to position the blade body 6 at the storage position and allowing the sliding body 4 to be detached from the main body 2. In this example, a compression type coil spring is used. Before the guide body 3 is attached to the main body 2, the accommodation cavity 1
5 and is held irremovably by attaching the guide body 3 to the body 2 by attaching the guide body 3 to the main body 2, and the insertion piece 35 of the slide body 4 inserted from the insertion hole 29 of the guide body 3 is fitted to the upper end of the guide piece 3. Is designed to be compressed. Next, the operation will be described based on such a configuration. 1 to 4 show a state in which the blade body 6 is stored. At this time, the guide 3
Since the sliding body 4 is detained against it, it does not come out accidentally upward, and at the same time, the knob bolt 4 of the adjusting means 45.
9 is abutted against the shoulder portion 46 of the main body 2, the grip body 5
Even if is pressed, there is no fear that it will descend and the blade body 6 will project. Therefore, such a state is set at the time of non-cutting and at the time of factory shipment. As shown in FIG. 6, the object to be cut A is placed on the underlayment B such as a cutting mat. A ruler C and a main body 2 of the angle cutting cutter 1 are placed on the object to be cut A. The ruler C is arranged so as to be parallel to the straight line of the object A to be cut at a predetermined interval. The main body 2 has a lower wall 9 so that the base mark 22 of the base line display means 18 is located on the cutting line X.
The front side of is applied to ruler C. Then, for example, the ruler C is held by the left hand and the grip body 5 is held by the right hand. After that, the grip body 5 is horizontally moved along the ruler C while being pressed against the elastic body 7. At this time, the center line of the blade body 6 is confirmed by the base mark 21 of the base line display means 18. When the grip body 5 is pressed against the elastic body 7, the guide body 3
As the slide body 4 is guided with respect to the main body 2, the grip body 5, the slide body 4, and the blade body 6 descend, and the long hole 1 of the main body 2
The blade 6 projects from the lower side through a predetermined amount by 6 and bites into the object A to be cut. At this time, the leaf spring 40 of the retaining means 36 is disengaged from the notch 38, and the knob bolt 49 of the adjusting means 45 engages with the shoulder portion 46 of the main body 2 to prevent further lowering of the blade body 6. The protrusion amount S is maintained at a predetermined amount. When the grip body 5 is horizontally moved along the ruler C in such a state, the body 2 is guided by the ruler C, the body 2 is slid with respect to the object A to be cut, and the predetermined amount is projected. The object A to be cut is cut by the blade body 6 thus cut. That is, the cut object A
Is so-called angle cut so as to obtain an inclined surface of 45 degrees. At this time, the grasping body 5, the sliding body 4, and the blade body 6 function as a so-called one cutter, and the main body 2 follows the cutter and keeps the cutter in a predetermined state with respect to the object A to be cut. It functions as a so-called guide. Therefore, the main body 2 is
It is not necessary to grip and move together with the grip body 5. As shown in FIG. 6, when the blade body 6 is projected, the upper surface of the blade body 6 slides on the protrusion 20 of the lift-up preventing means 17 to prevent the blade body 6 from floating up, and Can be suppressed. Therefore, accurate cutting can be expected. Since the protrusion 20 faces only a part of the elongated hole 16, it does not hinder the confirmation of the cutting state of the blade body 6, and yet the blade body 6 can be effectively supported. When the hand holding the grasping body 5 is released, the elastic body 7 relies on the grasping body 5 and the sliding body 4 with respect to the main body 2.
Then, the blade body 6 is automatically raised, and the blade body 6 is returned to the storage position. When the blade body 6 is located at the storage position, the object to be cut A
In addition to being unable to cut the blade, there is no fear that an operator may inadvertently touch the blade 6 and get injured. When the object A to be cut cannot be cut by one operation, the same operation is repeated until it is cut. At this time, the protrusion amount S of the blade body 6 is adjusted by the adjusting means 45, and the protrusion amount S is confirmed by the protrusion amount display means 37. When the sharpness of the blade body 6 deteriorates, the blade body 6 is lifted up against the guide means 3 against the indwelling means 36 to separate the blade body 6 from the guide body 3. At this time, the insertion piece 35 of the sliding body 4 which is in contact with the upper end of the elastic body 7 separates from the insertion hole 29 of the guide body 3 and the accommodation cavity 15 of the main body 2, and therefore the sliding body 4 and The body composed of the grip body 5 and the blade body 6 can be easily separated from the main body 2. After that, the bolt 58 and the knob nut 59 of the attaching / detaching means 53 are unscrewed to remove the blade body 6 from the sliding body 4, and the V-shaped cutting edge 52 which has not been used yet is moved to the sliding body 4.
The blade body 6 is set on the sliding body 4 so as to project from the front side, and is attached by the bolt 58 and the knob nut 59. Since there are four V-shaped blade edges 52 of the blade body 6, the blade body 6 can be used four times, and the material can be effectively used. When replacing the entire blade body 6 with a new blade body, the same procedure as described above is performed.

Incidentally, the guide body 3 is the main body 2 in the previous embodiment.
However, the present invention is not limited to this and may be formed integrally, for example. The gripping body 5 is the sliding body 4 in the previous embodiment.
However, the present invention is not limited to this and may be formed integrally, for example.

[0008]

As described above, according to the present invention,
The following excellent effects can be achieved. (1) The grip body is composed of a main body, a guide body, a sliding body, a grip body, a blade body, and an elastic body, and in particular, the grip body which is located above the main body and can be gripped by one hand is provided on the slide body. The sliding body and the blade function as a so-called one cutter, and the main body functions as a so-called guide for keeping the same in a predetermined inclined state, so that force can be easily applied and efficient cutting work can be performed. (2) Since the elastic body that raises the sliding body relative to the main body to position the blade body at the storage position is provided, the blade body is automatically stored when the hand is released from the grip body, which may improve safety. it can. (3) Since the sliding body is provided with the gripping body located above the main body and capable of being gripped with one hand, and the elastic body is provided so as to allow the sliding body to be detached from the main body, The blade body can be easily attached to and detached from the main body, and the blade body can be easily replaced with respect to the sliding body. (4) When the blade body is formed in a square shape to form four V-shaped blade portions, one blade body can be used four times, and the material can be effectively used. (5) When the retaining means for temporarily retaining the blade body at the storage position is provided between the guide body and the sliding body, the sliding body does not inadvertently separate from the main body, which may improve safety. it can. (6) When the adjusting means for adjusting the protrusion amount of the blade body is provided between the grip body and the main body, the protrusion amount of the blade body can be easily adjusted and the blade body is prevented from protruding. It is possible to prevent inadvertent protrusion. As a result, the blade body does not inadvertently project and be damaged or the operator is injured when not cutting or shipped from the factory.

[Brief description of drawings]

FIG. 1 shows an angle cutting cutter according to an embodiment of the present invention,
The perspective view which shows the state which accommodated the blade.

FIG. 2 is a side view of FIG. 1 with a part cut away.

FIG. 3 is a plan view of FIG.

FIG. 4 is a vertical side view of FIG.

FIG. 5 is an exploded perspective view.

FIG. 6 is a vertical cross-sectional side view showing a state in which a blade body is projected.

7 is a front view of FIG.

FIG. 8 is a bottom view showing a mounting state of the sliding body and the blade body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Angle cutting cutter, 2 ... Main body, 3 ... Guide body, 4 ... Sliding body, 5 ... Gripping body, 6 ... Blade body, 7 ... Elastic body, 8 ... Upper wall, 9
... lower wall, 10 ... front wall, 11 ... rear wall, 12 ... left wall, 13 ...
Right wall, 14 ... Recess, 15 ... Receiving cavity, 16 ... Long hole, 17 ...
Lifting prevention means, 18 ... Base line display means, 19 ... Bridge, 20 ... Projection 21, 22, 42 ... Base mark, 23 ... Horizontal bottom wall, 24 ... Inclined bottom wall, 25 ... Side wall, 26 ... Top wall, 27
... guide groove, 28 ... concave groove, 29 ... insertion hole, 30 ... tapping screw, 31 ... bolt / nut, 32 ... sliding piece, 33 ...
Projecting piece, 34 ... Mounting piece, 35 ... Inserting piece, 36 ... Retaining means, 37 ... Projection amount displaying means, 38 ... Notch, 39 ... Spring accommodating cavity, 40 ... Leaf spring, 41 ... Scale, 43 ... Non-slip irregularity, Four
4 ... Screw, 45 ... Adjusting means, 46 ... Shoulder part, 47 ... Seat hole,
48 ... Screw hole, 49 ... Grip bolt, 50 ... Coil spring, 51 ... Single blade, 52 ... V-shaped blade tip, 53 ... Attachment / detachment means, 5
4 ... rotation stop through hole, 55 ... rotation stop pin, 56 ... through hole, 57 ... rotation stop hole, 58 ... bolt, 59 ... pick nut, A ... cut object, B ... underlay, C ... ruler, S ... protrusion Quantity, X ... cutting line,
θ, α ... Predetermined angle.

Claims (3)

(57) [Claims] 1. A main body slidably mounted on an object to be cut, a guide body inclined to the main body by a predetermined angle, and a movable up and down along the guide body from above. A sliding body that can be detached, a gripping body that is provided on the sliding body and that can be gripped with one hand above the main body, a storage position that is detachably provided on the sliding body and is stored in the main body, and a lower portion of the main body. A blade body that can project from the side and take a protruding position for cutting an object to be cut, and raises the sliding body with respect to the main body to position the blade body at the storage position and allows the sliding body to be detached from the main body. It is composed of an elastic body and a blade body between the guide body and the sliding body.
An angle cutting cutter characterized by being provided with a detaining means for temporarily detaining at a storage position . 2. The angle cutting cutter according to claim 1, wherein the blade body has a square shape and four V-shaped blade portions are formed. 3. The angle cutting cutter according to claim 1, further comprising adjusting means provided between the gripping body and the main body for adjusting a protruding amount of the blade body.