JP2015031615A - Pressing force setting device and pressing force setting method for cutting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressing force setting device and a pressing force setting method, for a cutting tool equipped with adjustment means for adjusting a pressing force of a cutting blade edge against a cutting target object, capable of easily and speedily setting the pressing force of the cutting blade edge against the cutting target object.SOLUTION: A pressing force setting device 1 includes: a body part 10; a penetration member 11 for applying a penetration force to penetrate a cutting target object; a load member 12 for applying the penetration force to the penetration member 11 through an elastic member 13; a gauge member 14 that moves together with the load member correspondingly to the penetration force applied by the penetration member against the cutting target object; and a stop member 15 for making the gauge member 14 stop. A scale M is provided such that numerical values, for setting the pressing force of the blade edge of the cutting tool by using adjustment means, are provided in a readable manner correspondingly to the moving amount by which the gauge member 14 moves until the penetration member 11 penetrates the cutting target object.

Description

The present invention relates to a pressing force setting device for setting a pressing force in a cutting tool provided with an adjusting means for adjusting the pressing force of a cutting edge of a cutting blade against an object to be cut, and a pressing force setting method for a cutting tool.

  2. Description of the Related Art Conventionally, a cutting tool having a cutting blade such as a cutter knife has been used to cut an object to be cut, for example, a building material such as wallpaper, carpet, or thin plate. When cutting these workpieces with a cutting tool, if the workpiece is pressed with an excessive force by the cutting blade, the cutting edge of the cutting blade penetrates the workpiece and reaches walls, floors, etc. that do not need to be cut. There was a risk. Thereby, a wall, a floor, etc. may be damaged with a cutting blade. Moreover, the cutting edge of the cutting blade may be damaged, and the cutting operation may not be performed properly.

In order to solve such a problem, there has been proposed a cutting tool configured to be adjustable so that the pressing force of the cutting edge of the cutting blade against the object to be cut is not loaded on the object by a predetermined size or more. . For example, Patent Document 1 discloses that an attachment member to which the cutting blade is attached so that the cutting edge of the cutting blade protrudes outwardly and a direction in which the cutting edge approaches and separates from the object to be cut can be rotated. A main body member that supports the mounting member and includes a gripping portion that is gripped by an operator, and the mounting member and the main body member are coupled to push the blade edge against the cutting object against the mounting member. The biasing member that exerts a biasing force in the pressing direction to be applied and the main body member that is movably supported are connected to each other to adjust the biasing force in the pressing direction by the biasing member and the mounting member. The cutting tool provided with the cutting | disconnection assistance apparatus which has a link member to perform is disclosed. In this cutting tool, the main body member and the mounting member for the cutting blade are connected via an urging member so that the force of the operator pressing the blade edge toward the cutting object is not directly transmitted to the cutting blade. The pressing force that presses the blade edge against the object to be cut depends on the biasing force of the biasing member. By adjusting this urging force with the link member, the pressing force for pressing the cutting edge against the object to be cut can be set to a desired value, and the cutting edge of the cutting blade needs to penetrate the object to be cut. It is possible to prevent damaging walls, floors, etc. that are not present.

Japanese Patent No. 4457171

  In order to achieve the above-described effects, it is necessary to set an appropriate pressing force in advance according to the object to be cut. However, in order to set an appropriate pressing force, first set the appropriate pressing force, then cut the workpiece, then adjust the pressing force while observing the cutting state, and set it repeatedly. There was a problem that it had to do, and it took time and effort.

Then, this invention aims at providing the pressing force setting apparatus of the cutting tool and the pressing force setting method of a cutting tool which can set the pressing force of the blade edge of the cutting blade with respect to a to-be-cut | disconnected object simply and rapidly. To do.

In the present invention, in order to achieve the above object, according to the first aspect of the present invention, the pressing force is set in the cutting tool provided with the adjusting means for adjusting the pressing force of the cutting edge of the cutting blade against the workpiece. A pressing force setting device, wherein a penetrating portion that penetrates the workpiece is formed, a penetrating member that loads a penetrating force for the penetrating portion to penetrate the workpiece, and the penetrating member via the elastic member A load member that loads a penetrating force; a gauge member that is connected to the load member and moves with the load member in response to a penetrating force that is loaded on the workpiece by the penetrating member; and the penetrating portion is the workpiece A stop member that stops the gauge member when penetrating the gauge member, and a scale capable of reading a value set by the adjusting means moves the gauge member until the penetrating member penetrates the workpiece. Transfer Corresponds is provided to the amount, use of technical means that.

According to the first aspect of the present invention, when the load member is operated to apply a penetrating force to the workpiece by the penetrating member via the elastic member, and when the penetrating member penetrates the workpiece, the stop member By reading the scale value with the gauge member that stops by operation and setting the adjustment means of the cutting tool, the pressing force of the cutting tool's cutting edge against the workpiece is the pressing force required to cut only the workpiece Can be set to Thus, an appropriate pressing force can be set easily and quickly with a single operation. Further, since the gauge member is stopped by the operation of the stop member when the penetrating member penetrates the workpiece, the scale value for setting the adjusting means of the cutting tool can be read reliably and accurately. The pressure can be set accurately.

According to a second aspect of the present invention, in the pressing force setting device for a cutting tool according to the first aspect, the stop member has a hole through which the gauge member is inserted, and the through member is the stop. A locking portion that can be locked to a member is provided, and when the penetrating portion penetrates an object to be cut, the locking portion is locked to the stop member, and the stop member contacts the gauge member. The technical means is used to stop the gauge member.

According to invention of Claim 2, a gauge member can be stopped with the stop member of a simple structure.

According to a third aspect of the present invention, in the pressing force setting device for a cutting tool according to the first or second aspect, an urging member for urging the load member in a direction opposite to a load direction of the penetrating force is provided. The technical means is used.

According to the invention described in claim 3, since the load member is urged by the urging member in the direction opposite to the load direction of the penetrating force, the load member is released by releasing the load by the load member after reading the scale. Can be easily returned to the position before measurement.

According to a fourth aspect of the present invention, there is provided a cutting tool pressing force setting method, comprising: a cutting tool provided with an adjusting means for adjusting the pressing force of the cutting edge of the cutting blade against an object to be cut; and the first to third aspects. And a pressing force setting device for a cutting tool according to any one of the above, an object to be cut is arranged to face the penetrating portion of the penetrating member, and the load member is operated to penetrate through the penetrating member Pressing the workpiece while increasing the force, reading the value of the scale when the penetrating member penetrates the workpiece, and setting the pressing force by the adjusting means of the cutting member based on the value of the scale Use technical means.

According to the fourth aspect of the present invention, when the load member is operated to apply a penetrating force to the workpiece by the penetrating member via the elastic member, and when the penetrating member penetrates the workpiece, the stop member By reading the scale value with the gauge member that stops by operation and setting the adjustment means of the cutting tool, the pressing force of the cutting tool's cutting edge against the workpiece is the pressing force required to cut only the workpiece Can be set to Thus, an appropriate pressing force can be set easily and quickly with a single operation. In addition, when the penetrating member penetrates the workpiece, the gauge member is stopped by operating the stop member, so that the scale value for setting the cutting tool adjusting means can be read reliably and accurately. The pressure can be set accurately.

It is explanatory drawing which shows an example of a cutting tool. It is a perspective view which shows the structure of a pressing force setting apparatus. It is a perspective view which shows the structure of a pressing force setting apparatus. It is a perspective view which shows the setting method of pressing force. It is a perspective view which shows the setting method of pressing force. It is a perspective view which shows the structure of the example of a change of a pressing force setting apparatus.

The cutting tool pressing force setting device and the cutting tool pressing force setting method of the present invention will be described with reference to the drawings.

As a cutting tool 2 capable of adjusting the pressing force for cutting a workpiece S such as wallpaper, carpet, and thin building material, it is disclosed in Patent Document 1 as shown in FIG. 1, for example. The cutting tool 2 to which a cutter knife is attached can be used for the cutting assisting device 20.

The cutting assisting device 20 brings the cutting edge 21a close to and away from the workpiece S and the mounting member 22 to which the cutting edge 21 is attached so that the cutting edge 21a of the cutting blade 21 of the cutter knife protrudes outward. The attachment member 22 is supported so as to be pivotable in the direction, and the main body member 23 having a grip portion 23a to be grasped by an operator, the attachment member 22 and the main body member 23 are connected to each other with respect to the attachment member 22. The pressing force urging member 24 that exerts a pressing force in the pressing direction that presses the blade edge 21a against the workpiece S, and the body member 23 are movably supported, and the pressing force urging member 24 and the mounting member 22 are connected to each other. By connecting, a link member 25 that adjusts the pressing force in the pressing direction by the pressing force urging member 24 and an adjusting unit 26 that adjusts and sets the pressing force are provided. Here, the pressing force urging member 24 is composed of a tension coil spring 24a connected by a link member 25 and a wire 24b, and the adjusting means 26 is configured to be movable back and forth (left and right in the figure), and the tension coil spring 24a. By changing the length, the pressing force of the workpiece S by the blade edge 21a can be adjusted. In the moving direction of the adjusting means 26, a setting scale 26a on which a scale such as a numerical value for setting the pressing force is displayed is provided. The length of the tension coil spring 24a can be changed by moving the adjusting means 26 to match the predetermined value of the setting scale 26a. That is, by adjusting the adjusting means 26 to a predetermined numerical value of the setting scale 26a, the pressing force of the workpiece S by the blade edge 21a can be adjusted.

When the cutting tool 2 increases the pressing force of the cutting object S by the cutting edge 21a in order to bring the cutting edge 21a into contact with the cutting object S and cut it, these mechanisms operate in conjunction with each other, and the cutting edge 21a is covered. The force of the operator pressing against the cut object S is not directly transmitted to the cutting blade 21, and the pressing force of the blade edge 21 a is due to the urging force of the pressing force urging member 24 and is set in advance by the adjusting means 26. A pressing force equal to or higher than the pressing force is configured not to be applied to the workpiece.

As shown in FIGS. 2 and 3, the pressing force setting device 1 for setting the pressing force of the cutting tool 2 passes through the main body 10 and an object to be cut S prepared by cutting out from wallpaper or carpet. The penetrating member 11 for loading the penetrating force, the elastic member 13, in this embodiment, the load member 12 for loading the penetrating member 11 with the penetrating force via the spring member, and the workpiece to be cut by the penetrating member. A gauge member 14 that moves together with the load member in response to the penetrating force, and a stop member 15 that stops the gauge member 14 are provided.

The main body 10 includes an insertion portion 10a formed so that the load member 12 can be inserted, an insertion portion 10b formed so that the penetration member 11 can be inserted, an insertion portion 10c formed so that the gauge member 14 can be inserted, and the main body portion 10. A reading part 10d, which is a window part through which the gauge member 14 provided for reading the numerical value of the scale M provided on the surface, and the object S to be cut are placed, and are fixed by being sandwiched by a penetrating member 11 at a penetrable position. Stage 10e. The scale M is configured to be able to read a numerical value for setting the pressing force by the cutting edge 21a of the cutting tool 2 with the adjusting means 26 in accordance with the moving amount of the gauge member 14 exposed from the reading unit 10d. Is provided corresponding to the amount of movement of the gauge member 14 before it penetrates the workpiece S.

The penetrating member 11 protrudes outward in the vicinity of the opening at the other end to a hollow member 11b having a sharp tip (for example, a needle shape) and having a penetrating portion 11a penetrating the workpiece S at one end. This is a member provided with a locking portion 11c. The penetrating member 11 is supported so as to be movable in the longitudinal direction of the main body 10. The hollow member 11 b includes an elastic member 13, and when the load member 12 presses the elastic member 13, a penetrating force for penetrating the workpiece S can be applied to the penetrating member 11. FIG. 3 shows a configuration in which a core material that prevents displacement is provided at the center of the elastic member 13.

The load member 12 is formed in a rod shape, one end of which is connected to the connection member 16 and is arranged so as to be parallel to the gauge member 14. The load member 12 is inserted into the main body portion 10 from the insertion portion 10a of the main body portion 10, and the other end is disposed so as to be able to press the elastic member 13.

The gauge member 14 is formed in a rod shape and is disposed adjacent to the penetrating member 11. One end is connected to the connection member 16, and the other end is inserted from the insertion part 10 c of the main body part 10 into the main body part 10 and supported so as to be movable in the longitudinal direction of the main body part 10. A line L for reading the scale M is drawn on the tip surface of the gauge member 14.

The gauge member 14 is inserted through an urging member 17 made of a spring, and the urging member 17 urges the load member 12 in the direction opposite to the load direction of the penetrating force by urging the gauge member 14.

The stop member 15 includes a plate-like member 15a having a hole through which the gauge member 14 is inserted, a holding member 15b made of rubber, for example, for holding the plate-like member 15a so as not to contact the gauge member 14, It has. The hole of the plate-like member 15 a is formed slightly larger than the outer dimension of the gauge member 14. One end of the stop member 15 is fixed to the main body portion 10 via the holding member 15 b, and the locking portion 11 c is locked to the stop member 15 when the penetrating member 11 penetrates the workpiece S. Are arranged as follows.

Next, a method for setting the pressing force of the cutting edge 21a of the cutting tool 2 by the pressing force setting device 1 will be described with reference to FIGS.

As shown in FIG. 4A, first, the object to be cut S is placed on the stage 10e and sandwiched and fixed. The stage 10e incorporates the same structure as the stop member 15, and is fixed in a state where the workpiece S is sandwiched.

  When the load member 12 is operated toward the workpiece S, the tip of the penetrating portion 11a of the penetrating member 11 contacts the workpiece S via the elastic member 13 as shown in FIG. Subsequently, when the force that presses the load member 12 is increased, the elastic member 13 is compressed and contracted, whereby the penetration force applied to the workpiece S as a reaction force increases.

Here, the penetrating member 11 does not move, but the load member 12 and the gauge member 14 move downward as the loaded penetrating force increases. The gauge member 14 is exposed from the reading unit 10d of the main body unit 10 and is in a state in which the scale M can be read in accordance with the amount of movement until it passes through the workpiece S.

At this time, even if the engaging portion 11c of the penetrating member 11 is separated from or in contact with the plate-like member 15a of the stop member 15, a large force is not applied. Therefore, since the plate-like member 15 a is not in contact with the gauge member 14, the gauge member 14 can move without being restricted by the stop member 15.

When the penetrating force is further increased, as shown in FIG. 4C, the penetrating portion 11a of the penetrating member 11 penetrates the workpiece S, and the penetrating member 11 is displaced downward. When the penetrating member 11 is displaced downward, the locking portion 11c is locked to one end of the plate-like member 15a of the stop member 15, and the plate-like member 15a is inclined with respect to the load direction of the penetrating force. Since the hole formed in the plate-like member 15a is only slightly larger than the outer shape of the gauge member 14, the plate-like member 15a contacts the gauge member 14, and the movement of the gauge member 14 is restrained and stopped. .

In the state where the gauge member 14 is stopped, as shown in FIG. 5, the value of the scale M indicated by the scale reading line L provided at the distal end of the gauge member 14 exposed from the reading portion 10d is read and adjusted by that value. The means 26 is set. Since the value of the scale M when penetrating the workpiece S is provided corresponding to the pressing force necessary for cutting only the workpiece S with the cutting tool 2, the penetrating member is provided on the workpiece S. 11 and the gauge member 14 reads the scale M, a simple pressing force of the cutting tool 2 can be set.

When the load by the load member 12 is released after reading the value of the scale M, the urging member 17 urges the gauge member 14, so that the load member 12 is urged in the direction opposite to the load direction of the penetrating force. Thereby, the load member 12 can be easily returned to the position before the measurement.

(Example of change)
The workpiece S can be prepared by overlapping the number of pieces to be cut at a time in actual work, and the pressing force of the cutting tool 2 can be set. For example, when it is desired to cut two cut objects prepared in piles in actual work, the pressing force can be set by preparing two cut sheets and performing the same operation. .

In the present embodiment, the scale M is provided on the main body portion 10, but a configuration in which the scale M is formed on the surface of the gauge member 14 and the gauge member 14 reads based on the amount exposed from the reading portion 10 d is also adopted. Can do.

The pressing force setting device and the pressing force setting method of the present invention are not limited to the cutting tool 2 described above, and can also be used for setting the pressing force of a cutting tool provided with other adjusting means. Further, the cutting tool is not limited to a straight-edged cutter knife, and a cutting tool having blades of various shapes can be used.

[Effect of the embodiment]
According to the pressing force setting device for cutting tool and the pressing force setting method for cutting tool according to the present invention, an appropriate pressing force for cutting only the workpiece S can be set easily, quickly and accurately in one operation. can do.

(Other embodiments)
As shown in FIG. 6, the load member 31 and the gauge member 14 in the pressing force setting device 1 are integrally formed, and a scale M is formed on the surface of the load member 31 (gauge member 14). Also, the pressing force setting device 3 can be employed. In the pressing force setting device 3, the stop member 15 is inserted through the load member 31. Moreover, the latching | locking part 11c of the penetration member 11 is formed in the vicinity of the penetration part 11a. Between the locking part 11c and the stop member 15, there is provided a penetration detection member 32 that operates when the penetration part 11a penetrates the workpiece S. As shown in FIG. 6A, the penetration detection member 32 is not locked to the locking portion 11c before the penetration portion 11a penetrates the workpiece S, but the penetration portion 11a penetrates the workpiece S. 6B, the locking portion 11c is locked to the penetration detection member 32 to move the penetration detection member 32 downward, and the plate-like member of the stop member 15 is interposed via the penetration detection member 32. The movement of the load member 31 is restrained and stopped by inclining 15a with respect to the load direction of the penetrating force. In this configuration, for example, the numerical value of the scale M can be read at the boundary with the main body 10.

DESCRIPTION OF SYMBOLS 1 ... Pressing force setting apparatus 2 ... Cutting tool 10 ... Main-body part 11 ... Penetration member 11a ... Penetration part 11b ... Hollow member 11c ... Locking part 12 ... Load member 13 ... Elastic member 14 ... Gauge member 15 ... Stopping member 15a ... Plate-like member 15b ... holding member 16 ... connecting member 17 ... biasing member 20 ... cutting auxiliary device 21 ... cutting blade 21a ... blade tip 22 ... mounting member 23 ... main body member 24 ... pressing force biasing member 25 ... link member 26 ... adjustment Means 26a ... Setting scale M ... Scale S ... Object to be cut

Claims (4)

A pressing force setting device for setting a pressing force in a cutting tool provided with an adjusting means for adjusting a pressing force of a cutting edge of a cutting blade against a workpiece,
A penetrating member is formed that penetrates the workpiece, and the penetrating portion loads a penetrating force for penetrating the workpiece.
A load member for applying a penetrating force to the penetrating member via an elastic member;
A gauge member that is connected to the load member and moves together with the load member in response to a penetrating force applied to the workpiece by the penetrating member;
A stop member that stops the gauge member when the penetrating portion penetrates the workpiece;
With
A scale capable of reading a value set in the adjusting means is provided corresponding to the amount of movement of the gauge member before the penetrating member penetrates the workpiece. Pressure setting device. The stop member has a hole through which the gauge member is inserted;
The penetrating member includes a locking portion that can be locked to the stop member,
The locking portion is locked to the stop member when the penetrating portion penetrates the workpiece, and the gauge member is stopped by contacting the gauge member with the stop member. The pressing force setting device for the cutting tool according to 1. The pressing force setting device for a cutting tool according to claim 1 or 2, further comprising a biasing member that biases the penetrating member in a direction opposite to a direction in which a penetrating force is loaded. A cutting tool provided with an adjusting means for adjusting the pressing force of the cutting edge of the cutting blade against the workpiece, and a pressing force setting device for the cutting tool according to any one of claims 1 to 3 are prepared. ,
The object to be cut is arranged to face the penetrating portion of the penetrating member,
Operating the load member and pressing the workpiece while increasing the penetration force by the penetration member,
A pressing force setting method for a cutting tool, characterized in that a value of a scale when the penetrating member penetrates an object to be cut is read, and a pressing force is set by adjusting means of the cutting member based on the value of the scale.

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