Surface material cutting tool

Abstract

To allow for easy modification of the cutting dimensions of the surface material. [Solution] The surface material cutting tool 1 has a front side portion 21 that is positioned on the front side of the surface material and a back side portion 22 that is positioned on the back side of the surface material. The main body portion 20 has a contact portion 61 that contacts a contact portion formed in the part of the surface material that is inside the cutting location, and is provided with a cutting position adjustment member 60 that moves forward and backward in a predetermined direction intersecting the cutting direction relative to the cutting blade 11.

Description

Technical Field

[0001] The present disclosure relates to a skin material cutting tool capable of cutting a skin material used, for example, as an interior material of an automobile.

Background Art

[0002] For interior materials of automobiles, for example, skin materials provided to cover cushion materials, base materials, etc. are used. Such a skin material can be obtained by preparing a large material exceeding the dimensions to be used in advance and cutting this material to a predetermined dimension.

[0003] For example, Patent Document 1 discloses a skin material cutting tool including a cutting blade for cutting a skin material used for an interior material of an automobile to a predetermined width and a main body portion to which the cutting blade is fixed. The main body portion has a backside plate arranged on the backside of the skin material and a frontside plate arranged on the frontside of the skin material, and the cutting blade is fixed to the backside plate and the frontside plate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when cutting a large skin material exceeding the dimensions to be used, there may be cases where, for example, it is desired to cut the peripheral portion of the skin material by 5 mm and cases where it is desired to cut by 10 mm. When it is desired to change the cutting dimension in this way, the tool of Patent Document 1 cannot cope, so it is necessary to prepare tools corresponding to short dimensions and tools corresponding to long dimensions by remaking the main body portion, which is complicated.

[0006] This disclosure is made in view of the above, and its purpose is to enable easy modification of the cutting dimensions of the surface material. [Means for solving the problem]

[0007] To achieve the above objective, one aspect of this disclosure may provide a surface material cutting device comprising a cutting blade for cutting surface material and a main body to which the cutting blade is fixed. The main body has a front side portion positioned on the front side of the surface material and a back side portion positioned on the back side of the surface material, and is configured to be movable in the cutting direction of the surface material inserted between the front side portion and the back side portion. The main body has a contact portion that contacts a contact portion formed in the portion of the surface material that is inside the cutting location, and is provided with a cutting position adjustment member that moves forward and backward in a predetermined direction intersecting the cutting direction relative to the cutting blade.

[0008] In other words, when cutting the peripheral portion (unnecessary part) of the surface material that is larger than the final product shape using a surface material cutting tool, the position of the cutting blade relative to the surface material can be positioned at a predetermined location by bringing the contact portion of the cutting position adjustment member into contact with the part of the surface material to be contacted. When the main body is moved in the cutting direction of the surface material in this state, the surface material is cut by the cutting blade and the peripheral portion of the surface material is removed. When the cutting position adjustment member is extended, the contact portion is positioned in an advanced position relative to the cutting blade, so when the contact portion comes into contact with the part of the surface material to be contacted, the cutting dimension of the peripheral portion of the surface material becomes shorter. On the other hand, when the cutting position adjustment member is retracted, when the contact portion comes into contact with the part of the surface material to be contacted, the cutting dimension of the peripheral portion of the surface material becomes longer. In short, the cutting dimension of the peripheral portion of the surface material can be changed simply by extending and retracting the cutting position adjustment member.

[0009] The cutting position adjustment member may be configured to be switchable between a first position, which is advanced relative to the cutting blade in a direction intersecting the cutting direction, and a second position, which is retracted from the first position. With this configuration, the cutting dimensions of the peripheral portion of the surface material can be easily changed by switching the cutting position adjustment member from the first position to the second position, and from the second position to the first position.

[0010] The main body may be elongated in the predetermined direction. In this case, the cutting blade can be fixed to one side of the main body in the longitudinal direction, and the other side of the main body in the longitudinal direction can be used as a gripping portion. The cutting position adjustment member can be moved forward and backward along the predetermined direction.

[0011] The cutting position adjustment member can be guided in the predetermined direction by at least one of the front side and the back side. This allows the user of the surface material cutting tool to easily operate the cutting position adjustment member when extending or retracting it.

[0012] The cutting position adjustment member may have a plurality of locking holes formed at intervals from each other in the predetermined direction. In this case, one of the front side and the back side may be provided with a movable locking portion that can be switched between a locked state in which at least a portion of one of the plurality of locking holes is engaged and an unlocked state in which it is disengaged from the locking hole, and a biasing member that constantly biases the movable locking portion in the direction in which it enters the locking hole.

[0013] In other words, the movable locking part, which is constantly biased by the biasing member, becomes locked when at least a portion of it enters one of the locking holes, thus making it less likely for the cutting position adjustment member to move unexpectedly during normal use. When moving the cutting position adjustment member forward or backward, applying a force greater than the force acting on the cutting position adjustment member during normal use makes it possible to disengage the movable locking member from the locking hole against the biasing force of the biasing member and leave it in an unlocked state. Then, when the cutting position adjustment member is moved until the movable locking member enters another locking hole, it locks into that other locking hole, making it less likely for the cutting position adjustment member to move unexpectedly during normal use. In short, after moving the cutting position adjustment member forward or backward, the cutting position adjustment member is automatically locked to prevent it from moving unexpectedly at each position.

[0014] The cutting position adjustment member may be elongated in the predetermined direction. In this case, the contact portion can be provided on one side of the cutting position adjustment member in the longitudinal direction, and the cutting position adjustment member can be configured to have a protruding portion that extends from the other side of the main body in the longitudinal direction on the other side of the cutting position adjustment member in the longitudinal direction. With this configuration, the cutting position adjustment member can be easily operated by applying force to the protruding portion when operating it.

[0015] The surface material cutting tool may further include a single holder for holding the first cutting blade and the second cutting blade, and a fastening member for fastening the holder to the main body. With this configuration, when replacing the first cutting blade and the second cutting blade, the holder is removed from the main body, the new first cutting blade and the second cutting blade are set in the holder, and the holder is fastened to the main body, making the replacement work easy.

[0016] The first cutting edge and the second cutting edge can be held by the holder so that one side surface is exposed. In this case, an insertion hole into which the holder is inserted is formed in the main body portion, and a contact surface against which the one side surface of the first cutting edge and the second cutting edge held by the holder abuts can be formed on the side surface of the insertion hole. Thereby, by simply inserting and fixing the holder holding the first cutting edge and the second cutting edge into the insertion hole, the first cutting edge and the second cutting edge can be held at a predetermined position.

[0017] The bottom surface of the insertion hole may be a guide surface for guiding the holder toward the contact surface side. Thereby, by inserting the holder into the insertion hole, one side surface of the first cutting edge and the second cutting edge held by the holder is brought into contact with the contact surface, and the first cutting edge and the second cutting edge can be fixed so as not to move.

Effect of the Invention

[0018] As described above, since the cutting position adjusting member that moves forward and backward in a direction intersecting the cutting direction with respect to the cutting edge is provided in the main body portion, the cutting dimension of the skin material can be easily changed.

Brief Description of the Drawings

[0019] [Figure 1] FIG. 1 is a perspective view of the skin material cutting device according to the embodiment of the present invention as seen from the front. [Figure 2] FIG. 2 is a perspective view of the skin material cutting device as seen from the rear. [Figure 3] FIG. 3 is a right side view of the skin material cutting device. [Figure 4] FIG. 4 is a plan view of the skin material cutting device. [Figure 5] FIG. 5 is a front view of the skin material cutting device. [Figure 6] FIG. 6 is a rear view of the skin material cutting device. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 4. [[ID=......]] [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3. [Figure 9] Figure 9 is a diagram corresponding to FIG. 1 when the cutting position adjusting member is in the intermediate position. [Figure 10] Figure 10 is a diagram corresponding to FIG. 1 when the cutting position adjusting member is in the most advanced position.

Embodiments for Carrying out the Invention

[0020] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Note that the following description of the preferred embodiments is merely illustrative in nature and is not intended to limit the present invention, its applications, or its uses.

[0021] FIGS. 1 and 2 are perspective views of a skin material cutting tool 1 according to an embodiment of the present invention. The skin material cutting tool 1 is a tool for cutting and removing a peripheral portion of a skin material 100 (shown by a virtual line) used for an interior material of an automobile. A part of the peripheral portion of the skin material 100 is an unnecessary part, and the unnecessary part can be removed from the skin material 100 by using the skin material cutting tool 1. Therefore, the skin material cutting tool 1 can also be called a removing tool for removing an unnecessary part.

[0022] The skin material 100 is, for example, a resin or cloth member provided to cover a cushion material, a base material, or the like. The skin material 100 may have a single-layer structure or a multi-layer structure including a cushion layer and a skin layer or a cloth layer. Further, the skin material 100 may be a cloth material, a leather material, or the like, or may have a structure in which a resin layer is laminated on these. Such a skin material 100 is cut larger than the shape at the time of the final product, and after molding or after being integrated with a cushion material, a base material, or the like, the peripheral portion is cut and removed so as to have the size of the final product. The skin material cutting tool 1 is used in this cutting process and removing process. Note that the thickness of the skin material 100 is not particularly limited, but can be, for example, in the range of 0.5 mm or more and 3.0 mm or less.

[0023] In this embodiment, the orientation of the skin material cutting tool 1 is defined as shown in Figures 1 to 8. That is, as shown in Figures 1 and 2, the front side of the skin material cutting tool 1 is the side that cuts the skin material 100, and the rear side of the skin material cutting tool 1 is the side that the user (operator) grips. The right side of the skin material cutting tool 1 is the right side when the skin material cutting tool 1 is viewed from the front, and the left side of the skin material cutting tool 1 is the left side when the skin material cutting tool 1 is viewed from the front. Also, the upper side of the skin material cutting tool 1 is referred to as the upper side in Figures 1 and 2, etc., and the lower side of the skin material cutting tool 1 is referred to as the lower side in Figures 1 and 2, etc. The vertical direction of the skin material cutting tool 1 is the height direction or thickness direction of the skin material cutting tool 1. This definition of the angular direction is for the convenience of explanation and does not limit the posture when using the present invention. For example, the skin material cutting tool 1 can also be used in a posture where the front side of the skin material cutting tool 1 is facing upwards or downwards.

[0024] In this embodiment, the cutting blades for cutting the surface material 100 include a first cutting blade 11 and a second cutting blade 12. Specifically, the surface material cutting device 1 comprises a first cutting blade 11 and a second cutting blade 12 for cutting the surface material 100, and a main body 20 to which the first cutting blade 11 and the second cutting blade 12 are fixed. The surface material 100 has a front and a back side, with the side facing upward in Figures 1 and 2 being the front side of the surface material 100, and the side facing downward in Figures 1 and 2 being the back side of the surface material 100. The surface material 100 can also be cut with its back side facing upward, so the orientation of the surface material 100 during cutting is not particularly limited. In the following description, the case where the front side of the surface material 100 is facing upward will be described. If the front side of the surface material 100 is facing downward, the following description should be inverted.

[0025] The main body 20 has a front side portion 21 positioned on the front (upper) side of the surface material 100 and a back side portion 22 positioned on the back (lower) side of the surface material 100. When cutting, the surface material 100 is inserted between the front side portion 21 and the back side portion 22. The main body 20 is configured to be movable in the cutting direction of the surface material 100 inserted between the front side portion 21 and the back side portion 22. The cutting direction is indicated by the white arrow A shown in Figure 1.

[0026] The main body 20 is elongated in the front-to-back direction (a predetermined direction). Therefore, the front-to-back direction of the main body 20 is the longitudinal direction, and the left-to-right direction of the main body 20 is the width direction. The up-to-down direction of the main body 20 is the thickness direction of the main body 20. Cutting blades 11 and 12 are fixed to the front side (one side in the longitudinal direction) of the main body 20. On the other hand, the rear side (the other side in the longitudinal direction) of the main body 20 is a gripping part 23 for the user to hold.

[0027] The front portion 21 is a long, plate-like shape in the front-to-back direction. The first cutting blade 11 and the second cutting blade 12 are fixed to the front side of this front portion 21. The back portion 22 is also a long, plate-like shape in the front-to-back direction, similar to the front portion 21. The front side of the back portion 22 extends further forward than the front side of the front portion 21. Therefore, in a plan view, the back portion 22 protrudes further forward than the front portion 21. The rear side of the front portion 21 and the rear side of the back portion 22 constitute the gripping portion 23.

[0028] The main body 20 comprises a first component (front component) 20A that constitutes the front side 21 and a second component (back component) 20B that constitutes the back side 22. The first component 20A and the second component 20B are made of, for example, a hard resin material or a metal material, and the main body 20 is formed by assembling the first component 20A to the second component 20B. When assembling the first component 20A to the second component 20B, for example, a screw 25 can be used. Although not shown, a hole is formed in the first component 20A through which the shaft of the screw 25 is inserted, and the first component 20A can be fixed to the second component 20B by screwing the shaft of the screw 25 inserted through this hole into a screw hole formed in the second component 20B and tightening it. Note that the structure for fixing the first component 20A to the second component 20B may be a structure other than the structure using a screw 25. Furthermore, the main body 20 may be a single molded product.

[0029] A rear projection 26 that protrudes upward is formed on the rear side of the second component 20B. The first component 20A and the second component 20B are integrated in such a state that the lower rear surface of the first component 20A abuts against the upper surface of this rear projection 26. As a result, the portion of the second component 20B in front of the rear projection 26 and the front portion of the first component 20A are positioned opposite each other with a vertical gap between them.

[0030] On the front side of the second component 20B, that is, the portion of the second component 20B that is located forward from the rear projection 26, a front projection 27 is formed that protrudes upward. The upper surface of the front projection 27 is formed such that the center in the width direction is the highest point. Of the upper surface of the front projection 27, the right-side inclined surface 27a, which is located to the right of the center in the width direction, is inclined so that it is lower towards the right end, and the left-side inclined surface 27b, which is located to the left of the center in the width direction, is inclined so that it is lower towards the left end.

[0031] The surface material cutting tool 1 further comprises a single holder 30 for holding a first cutting blade 11 and a second cutting blade 12, and a fastening member 40 for fastening the holder 30 to the main body 20. The holder 30 is made of, for example, a resin material. The front portion 31 of the holder 30 extends in the vertical and horizontal directions. As shown in Figure 7, the front portion 31 has recesses 31a into which the first cutting blade 11 and the second cutting blade 12 fit. When replacing the first cutting blade 11 and the second cutting blade 12, the old first cutting blade 11 and the second cutting blade 12 are removed from the recesses 31a, and then the new first cutting blade 11 and the second cutting blade 12 are fitted into the recesses 31a.

[0032] As shown in Figure 8, the shapes of the first cutting blade 11 and the second cutting blade 12 are rectangular, specifically parallelograms. The first cutting blade 11 and the second cutting blade 12 are fitted into the recess 31a with their long sides extending vertically. Of the two short sides (upper and lower sides) of the first cutting blade 11 and the second cutting blade 12, the lower short side (lower side) is the sharp cutting edge portion 11a, 12a for cutting the surface material 100, while the other three sides do not have cutting edges. The long side on the left of the first cutting blade 11 and the long side on the right of the second cutting blade 12 are fitted into the recess 31a with their ends aligned. In this state, the long side on the right of the first cutting blade 11 abuts against the right inner surface of the recess 31a, and the long side on the left of the second cutting blade 12 abuts against the left inner surface of the recess 31a. This allows the first cutting blade 11 and the second cutting blade 12 to be positioned in the left-right direction within the recess 31a.

[0033] The blade portion 11a of the first cutting blade 11 is oriented in the cutting direction (to the right) indicated by arrow A, and therefore the first cutting blade 11 is positioned to face the cutting direction. The blade portion 12a of the second cutting blade 12 is oriented in the opposite direction to the cutting direction (to the left), and therefore the second cutting blade 12 is positioned to face the opposite direction to cutting direction A. In this way, since the blade portion 11a of the first cutting blade 11 and the blade portion 12a of the second cutting blade 12 are oriented in opposite directions, the surface material 100 can be cut whether the surface material cutting tool 1 is moved to the right or to the left. The second cutting blade 12 may be omitted, in which case only the direction indicated by arrow A will be a cutting direction.

[0034] Furthermore, the short side located above the first cutting blade 11 and the short side located above the second cutting blade 12 abut against the upper inner surface of the recess 31a from below. This suppresses upward displacement of the first cutting blade 11 and the second cutting blade 12. The first cutting blade 11 and the second cutting blade 12 may be replacement blades used in general-purpose cutters, or they may be blades specifically designed for the surface material cutting device 1.

[0035] Since the first cutting blade 11 and the second cutting blade 12 are simply fitted into recesses 31a formed in the front surface 31 of the holder 30, their front sides are exposed forward from the recesses 31a of the holder 30. In other words, the first cutting blade 11 and the second cutting blade 12 are held in the holder 30 in such a way that one side is exposed.

[0036] As shown in Figure 7, the lower surface 32 of the holder 30 is composed of an inclined surface that slopes downwards towards the front. Because the lower surface 32 slopes downwards toward the front, the vertical dimension of the holder 30 is such that the front end is the longest and the rear end is the shortest. The lower ends of the blade portion 11a of the first cutting blade 11 and the blade portion 12a of the second cutting blade 12 are positioned to protrude downward from the front end of the holder 30.

[0037] A shaft insertion hole 30a is formed in the middle of the holder 30 in the front-rear direction, through which the shaft portion 41 of the fastening member 40 is inserted. The shaft insertion hole 30a extends in the vertical direction, is formed to penetrate the holder 30 in the vertical direction, and opens to the lower surface 32.

[0038] A nut 42 is fixed to the front side of the front surface 21 of the main body 20, into which the shaft portion 41 of the fastening member 40 is screwed. The holder 30 can be fixed to the main body 20 by screwing the shaft portion 41 of the fastening member 40 into the nut 42 and tightening it. To remove the holder 30 from the main body 20, the fastening member 40 is simply loosened.

[0039] As shown in Figure 7, an insertion hole 50 is formed on the front side of the front surface 21 of the main body 20 into which the lower part of the holder 30 is inserted. The insertion hole 50 is formed so that the lower part of the holder 30 fits into it, and by inserting the lower part of the holder 30 into the insertion hole 50, the holder 30 is positioned in the left-right direction relative to the front surface 21.

[0040] Of the four sides of the insertion hole 50, the front side 51 is the contact surface against which the front side (one side) of the first cutting blade 11 and the second cutting blade 12 held in the holder 30 abuts. The front side 51 extends in the vertical and horizontal directions. When the holder 30 is housed in the insertion hole 50, the first cutting blade 11 and the second cutting blade 12 are held by being sandwiched in the thickness direction between the inner surface of the recess 31a of the holder 30 and the front side 51 of the insertion hole 50.

[0041] A blade insertion hole 52a is formed at the front end of the bottom surface 52 of the insertion hole 50, through which the lower ends of the blade portion 11a of the first cutting blade 11 and the blade portion 12a of the second cutting blade 12 are inserted. The lower ends of the blade portion 11a of the first cutting blade 11 and the blade portion 12a of the second cutting blade 12 protrude downward from the blade insertion hole 52a and are held in contact with the upper surface of the front projection 27.

[0042] The bottom surface 52 of the insertion hole 50 serves as a guide surface that guides the holder 30 toward the front side surface 51. Specifically, the bottom surface 52 of the insertion hole 50 is inclined so that it is positioned lower as it approaches the front end. The inclination angle of the bottom surface 52 of the insertion hole 50 and the inclination angle of the bottom surface 32 of the holder 30 are set to be approximately the same, so that when the holder 30 is placed in the insertion hole 50, the bottom surface 32 of the holder 30 comes into contact with the bottom surface 52 of the insertion hole 50. When the fastening member 40 is tightened in this state, the bottom surface 32 of the holder 30 slides along the bottom surface 52 of the insertion hole 50 and is displaced forward. As a result, the holder 30 is guided toward the front side surface 51, so that the front surfaces of the first cutting blade 11 and the second cutting blade 12 held by the holder 30 are firmly pressed against the front surface surface 51 of the insertion hole 50, thereby eliminating any looseness between the first cutting blade 11 and the second cutting blade 12.

[0043] The main body 20 is provided with a cutting position adjustment member 60. The cutting position adjustment member 60 has a shape that is long in the front-to-back direction, similar to the main body 20, and is specifically composed of a plate-shaped member that extends in the front-to-back direction and the left-to-right direction. The front-to-back dimension of the cutting position adjustment member 60 is set to be longer than the front-to-back dimension of the main body 20. A contact portion 61 is provided on the front side (one side in the longitudinal direction) of the cutting position adjustment member 60. In addition, the rear side (the other side in the longitudinal direction) of the cutting position adjustment member 60 has a protruding portion 62 that protrudes rearward from the rear side of the main body 20.

[0044] The contact portion 61 is the part that contacts the abutted portion 101 (shown in Figure 3) formed on the surface material 100 in the area inside the cutting location (planned cutting location). That is, if the cutting location on the surface material 100 is at the position indicated by the dashed line labeled B in Figure 3, a stepped portion is formed on the surface material 100 in the area inside the cutting location. This stepped portion, or the vertical surface of the stepped portion, can be designated as the abutted portion 101. When the surface material 100 shown in Figure 3 is inserted between the front side 21 and the back side 22, the abutted portion 101 contacts the contact portion 61, which is the front side of the cutting position adjustment member 60. This ensures that the amount of insertion of the surface material 100 between the front side 21 and the back side 22 is set to a predetermined amount. At this time, the position of the contact portion 61 of the cutting position adjustment member 60 is set so that the cutting location on the surface material 100 coincides with the blade portions 11a and 12a.

[0045] The cutting position adjustment member 60 moves forward and backward in a forward / backward direction (a predetermined direction) intersecting the cutting direction relative to the cutting blades 11 and 12. To advance the cutting position adjustment member 60 (move forward), the protruding portion 62 should be pushed forward. Conversely, to retract the cutting position adjustment member 60, the contact portion 61 should be pulled backward.

[0046] The position shown in Figure 1 is the furthest retracted position of the cutting position adjustment member 60. Figure 9 shows the case where the cutting position adjustment member 60 is in an intermediate position, and Figure 10 shows the case where the cutting position adjustment member 60 is in its furthest forward position. Even when the cutting position adjustment member 60 is in an intermediate position or in its furthest forward position, it is possible to bring the contact portion 101 of the surface material 100 into contact with the contact portion 61. By moving the cutting position adjustment member 60 forward, the distance between the contact portion 101 and the blade portions 11a and 12a increases, while by moving the cutting position adjustment member 60 backward, the distance between the contact portion 101 and the blade portions 11a and 12a decreases. In this way, by changing the front-to-back position of the cutting position adjustment member 60, the cutting location of the surface material 100 can be changed.

[0047] The position of the cutting position adjustment member 60 shown in Figure 10 (advancing position) may be defined as the first position, and the position of the cutting position adjustment member 60 shown in Figure 9 (intermediate position) may be defined as the second position which is further back than the first position. Alternatively, the position of the cutting position adjustment member 60 shown in Figure 9 (intermediate position) may be defined as the first position, and the position of the cutting position adjustment member 60 shown in Figure 1 (retracted position) may be defined as the second position which is further back than the first position. In any case, the cutting position adjustment member 60 can be switched between a first position which is advanced in a direction intersecting the cutting direction relative to the cutting blades 11 and 12, and a second position which is further back than the first position.

[0048] In this embodiment, the cutting position adjustment member 60 can be moved in the front-rear direction to switch between three positions: a forward position, an intermediate position, and a backward position. When the forward position is designated as the first position and the intermediate position as the second position, the backward position can be called the third position, which is further back than the second position. The cutting position adjustment member 60 may be able to be switched between any three positions as in this embodiment, or, although not shown, it may be able to be switched between any two positions or four or more positions.

[0049] The cutting position adjustment member 60 is guided in the front-rear direction by the front side portion 21 and the back side portion 22. Specifically, the cutting position adjustment member 60 is positioned below the first component 20A which constitutes the front side portion 21, and the upper surface of the second component 20B which constitutes the back side portion 22 slides against the lower surface of the cutting position adjustment member 60. As a result, the upper surface of the cutting position adjustment member 60 is guided in the front-rear direction by the lower surface of the first component 20A, and the lower surface of the cutting position adjustment member 60 is guided in the front-rear direction by the upper surface of the second component 20B. Note that the cutting position adjustment member 60 may be guided only by the lower surface of the first component 20A, or only by the upper surface of the second component 20B.

[0050] Furthermore, as shown in Figure 7, elongated holes 63 are formed in the front-to-back and left-to-right intermediate portions of the cutting position adjustment member 60. The elongated holes 63 penetrate the cutting position adjustment member 60 in the thickness direction. On the other hand, a screw 64 is fixed to the front portion 21, which is positioned inside the elongated hole 63. The screw 64 is movable relative to the front-to-back portion within the elongated hole 63. Therefore, the cutting position adjustment member 60 is also guided in the front-to-back direction by the screw 64.

[0051] A front locking hole 65, an intermediate locking hole 66, and a rear locking hole 67 are formed on the cutting position adjustment member 60, rearward of the elongated hole 63 and in front of the protruding portion 62, spaced apart from each other in the front-to-back direction. The front locking hole 65, intermediate locking hole 66, and rear locking hole 67 are formed to penetrate the cutting position adjustment member 60 in the thickness direction. The front locking hole 65, intermediate locking hole 66, and rear locking hole 67 are the same size and shape, and in this embodiment, they are circular locking holes.

[0052] The rear portion 22 is provided with a movable locking portion 70 that can be switched between a locked state in which at least a part of one of the front locking hole 65, intermediate locking hole 66, and rear locking hole 67 is engaged, and an unlocked state in which it is disengaged from the said locking hole, and a biasing member 71 that constantly biases the movable locking portion 70 in the direction of engaging with the said locking hole. Specifically, on the rear side of the rear portion 22, a housing hole 22a for housing the biasing member 71 is formed so as to extend in the vertical direction. The upper end of the housing hole 22a opens to the upper surface of the second component member 20B. The biasing member 71 is made of, for example, a coil spring, and is housed in the housing hole 22a in a position where its extension and contraction direction is vertical. The lower end of the biasing member 71 is fixed to the second component member 20B so as not to protrude downward from the housing hole 22a. The movable locking portion 70 and the biasing member 71 may also be provided on the front portion 21. The biasing member 71 may be made of, for example, rubber or elastomer.

[0053] The movable locking portion 70 is made of a hard, spherical member, such as metal. The diameter of the movable locking portion 70 is set to be larger than the inner diameters of the front locking hole 65, the intermediate locking hole 66, and the rear locking hole 67. This prevents the movable locking portion 70 from fitting completely into the front locking hole 65, the intermediate locking hole 66, and the rear locking hole 67, so that only a portion of the upper part of the movable locking portion 70 fits into one of the front locking hole 65, the intermediate locking hole 66, and the rear locking hole 67, resulting in a locked state.

[0054] When the cutting position adjustment member 60 is in the retracted position, the front locking hole 65 is positioned directly above the movable locking portion 70, with the front-to-back position of the front locking hole 65 set accordingly. As a result, the movable locking portion 70 enters the front locking hole 65 and locks due to the biasing force of the biasing member 71, thus positioning the cutting position adjustment member 60 in the retracted position. When the cutting position adjustment member 60 in this retracted position is pushed forward by hand, the movable locking portion 70 is switched to an unlocked state, disengaging from the front locking hole 65 while resisting the biasing force of the biasing member 71. When the cutting position adjustment member 60 is moved further forward to the intermediate position, the intermediate locking hole 66 is positioned directly above the movable locking portion 70. With the front-to-back position of the intermediate locking hole 66 set in this way, the movable locking portion 70 enters the intermediate locking hole 66 and locks due to the biasing force of the biasing member 71, thus positioning the cutting position adjustment member 60 in the intermediate position. When the cutting position adjustment member 60, located in this intermediate position, is pushed further forward by hand, the movable locking portion 70 is switched to an unlocked state, disengaging from the intermediate locking hole 66 while resisting the biasing force of the biasing member 71. When the cutting position adjustment member 60 reaches the forward position, the rear locking hole 67 is positioned directly above the movable locking portion 70. Since the front-rear position of the rear locking hole 67 is set in this way, the movable locking portion 70 enters the rear locking hole 67 and becomes locked due to the biasing force of the biasing member 71, and the cutting position adjustment member 60 is positioned in the forward position.

[0055] Furthermore, when the cutting position adjustment member 60, which is in the intermediate position, is pulled backward by hand, the movable locking part 70 is switched to an unlocked state, disengaging from the intermediate locking hole 66 while resisting the biasing force of the biasing member 71. When the cutting position adjustment member 60 reaches the retracted position, the front locking hole 65 is positioned directly above the movable locking part 70. As a result, the movable locking part 70 enters the front locking hole 65 and locks due to the biasing force of the biasing member 71, and the cutting position adjustment member 60 is positioned in the retracted position. In this way, the cutting position adjustment member 60 can be easily switched between the forward position, intermediate position, and retracted position by pushing it forward or pulling it backward, and after switching, it is held in the switched position.

[0056] In this way, after the cutting position adjustment member 60 is extended or retracted, it is automatically locked in place to prevent it from moving unexpectedly at each position. When extending or retracting the locked cutting position adjustment member 60, a force greater than that acting during normal use is applied to the cutting position adjustment member 60, which makes it possible to disengage the movable locking part 70 from the locking holes 65, 66, and 67 against the biasing force of the biasing member 71, resulting in an unlocked state. Then, when the cutting position adjustment member 60 is operated until the movable locking part 70 enters another locking hole 65, 66, or 67, it locks into that other locking hole 65, 66, or 67, making unexpected movement of the cutting position adjustment member 60 during normal use less likely.

[0057] (Effects of the embodiment) As described above, according to the surface material cutting tool 1 of this embodiment, when cutting the peripheral portion (unnecessary portion) of the surface material 100 which is larger than the shape of the final product using the surface material cutting tool 1, the position of the first cutting blade 11 relative to the surface material 100 can be positioned at a predetermined position by bringing the contact portion 61 of the cutting position adjustment member 60 into contact with the contact portion 101 of the surface material 100. In this state, when the main body 20 is moved in the cutting direction of the surface material 100, the surface material 100 is cut by the first cutting blade 11 and the peripheral portion of the surface material 100 is removed. When the main body 20 is moved in the opposite direction, the surface material 100 can be cut by the second cutting blade 12.

[0058] Furthermore, the position of the cutting position adjustment member 60, which has a contact portion 61, can be switched by moving it forward or backward. When the cutting position adjustment member 60 is moved forward, the cutting dimension of the peripheral portion of the surface material 100 can be shortened when the contact portion 61 is brought into contact with the contact portion 101 of the surface material 100. On the other hand, when the cutting position adjustment member 60 is moved backward, the cutting dimension of the peripheral portion of the surface material 100 can be lengthened when the contact portion 61 is brought into contact with the contact portion 101 of the surface material 100. In other words, the cutting dimension of the peripheral portion of the surface material 100 can be changed simply by moving the cutting position adjustment member 60 forward and backward.

[0059] The embodiments described above are merely illustrative in all respects and should not be interpreted restrictively. Furthermore, any modifications or changes that fall within the equivalent scope of the claims are all within the scope of the present invention. [Industrial applicability]

[0060] As explained above, the surface material cutting tool relating to this disclosure can be used, for example, to cut the surface material of automotive interior materials. [Explanation of symbols]

[0061] 1 Skin material cutting instrument 11 1st cutting blade 12 Second cutting blade 20 Main body 21 Front side 22 Back side 23 Gripping part 30 holders 50 insertion hole 51 Front side (contact surface) 52 Bottom surface (guide surface) 60 Cutting position adjustment member 61 Contact part 62 Protrusion 65, 66, 67 Locking holes 70 Movable locking part 71. Biasing member 100 Skin material 101 was taken over by the department

Claims

1. A device for cutting surface material, comprising a cutting blade for cutting surface material and a main body to which the cutting blade is fixed, The main body has a front side portion that is positioned on the front side of the surface material and a back side portion that is positioned on the back side of the surface material, and is configured to be movable in the cutting direction of the surface material inserted between the front side portion and the back side portion. The main body portion has a contact portion that contacts a contact portion formed in the portion of the surface material that is inside the cutting location, and is provided with a cutting position adjustment member that moves forward and backward in a predetermined direction intersecting the cutting direction relative to the cutting blade, in a surface material cutting device.

2. In the surface material cutting device according to claim 1, The cutting position adjustment member can be switched between a first position, which is advanced relative to the cutting blade in a direction intersecting the cutting direction, and a second position, which is retracted from the first position, in a cutting device for cutting surface material.

3. In the surface material cutting device according to claim 2, The main body is shaped to be elongated in the predetermined direction. The cutting blade is fixed to one side of the main body in the longitudinal direction. The other longitudinal side of the main body is a gripping portion. The cutting position adjustment member is a surface material cutting tool that moves forward and backward along the predetermined direction.

4. In the surface material cutting device according to claim 3, The cutting position adjustment member is guided in the predetermined direction by at least one of the front side and the back side of the surface material cutting tool.

5. In the surface material cutting device according to claim 3, The cutting position adjustment member has a plurality of locking holes formed in the predetermined direction, spaced apart from each other. A cutting tool for surface material, wherein one of the front side and the back side is provided with a movable locking portion that can be switched between a locked state in which at least a portion is inserted into one of the multiple locking holes and an unlocked state in which it is disengaged from the locking hole, and a biasing member that constantly biases the movable locking portion in the direction of entering the locking hole.

6. In the surface material cutting device according to claim 4, The cutting position adjustment member is shaped to be elongated in the predetermined direction. The contact portion is provided on one side in the longitudinal direction of the cutting position adjustment member. A cutting tool for surface material, wherein the cutting position adjustment member has a projection that protrudes from the other side in the longitudinal direction of the main body.

7. In the surface material cutting device according to claim 1, The cutting blade includes a first cutting blade positioned to face the cutting direction and a second cutting blade positioned to face the opposite direction to the cutting direction and on the same line as the first cutting blade, in a device for cutting surface material.

8. In the surface material cutting device according to claim 7, A single holder for holding the first cutting blade and the second cutting blade, A cutting tool for surface material, further comprising a fastening member for fastening the holder to the main body.

9. In the surface material cutting device according to claim 8, The first cutting blade and the second cutting blade are held in the holder such that one side is exposed. The main body portion has an insertion hole into which the holder is inserted. A surface material cutting tool, wherein a contact surface is formed on the side of the insertion hole, to which one side of the first cutting blade and the second cutting blade held in the holder abuts.

10. In the surface material cutting device according to claim 9, The bottom surface of the insertion hole serves as a guide surface for guiding the holder toward the contact surface, in a surface material cutting tool.

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