JP3132350U - Grooving blade, grooving device and grooving machine for sheet flooring - Google Patents

Abstract

The present invention provides a grooving blade, a grooving device, and a grooving machine for sheet flooring that can smoothly perform grooving operations.
A groove portion 25b of a groove cutting blade 22 is elongated and provided along the length direction from the blade edge 25a so as to be able to pass through a blade edge 25a provided at one end and a cutting piece for forming a groove. And a valley portion 25c. An end surface 26b of the groove cutting blade 22 is provided at the other end of the blade portion 25b so as to shield the valley portion 25c in the length direction. The end surface 26b is inclined so as to be directed toward the open side of the valley 25c and toward the side wall of the valley 25c so that the shaving pieces that have passed through the valley 25c can be discharged from the valley 25c. The apparatus main body 21 is provided so as to be supported at both ends of the bottom 21b. The groove cutting blade 22 is provided at one end of the apparatus main body 21 such that the cutting edge 25 a faces the one end of the apparatus main body 21 and protrudes downward from the bottom 21 b of the apparatus main body 21.
[Selection] Figure 1

Description

  The present invention relates to a grooving blade, a grooving device, and a grooving machine for sheet flooring.

  Conventionally, as a groove cutting blade used to form a groove or the like for filling a welding rod in a seam of a sheet floor material laid on the floor surface, an elongated, U-shaped or V-shaped cross-sectional shape is the same. In general, the blade edge is formed at one end (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 6-57606

  However, in the grooving blade described in Patent Document 1, the shaving piece used to form the groove extends from the blade edge to the hand, or extends in the direction of the path along the arc shape, thereby interfering with the grooving operation. It was. For this reason, the work piece has to be removed during the work, and there is a problem that it takes time and time for the work.

  The present invention has been made paying attention to such conventional problems, and an object thereof is to provide a grooving blade, a grooving device, and a sheet flooring grooving machine that can smoothly perform grooving operations. And

  In order to achieve the above object, a grooving blade according to the present invention has a blade body and a base, the blade body is elongated, and the cross section is V-shaped or U-shaped so that the groove can be cut with the tip of the tip. And the base has an end face inclined toward the one side wall at a position away from the tip of the blade body toward the rear end, and closes the valley by the end face. This is a feature.

  When the groove cutting blade according to the present invention forms a groove, a cutting piece cut by the blade edge passes through the trough and extends along an end face provided to block the trough in the length direction. Since the end face is inclined toward the open side of the valley part, the shaving piece can be guided to the open side of the valley part and discharged from the valley part. Moreover, since the end surface is inclined so as to face one side wall of the valley portion, the shaving piece can be deflected in the lateral direction with respect to the groove cutting direction. For this reason, the shaving piece does not interfere with the grooving operation, and the grooving operation can be performed smoothly.

  In the groove cutting blade according to the present invention, the base has a shape in which a side surface on the tip side of a cylinder is cut out so as to match the shape of the valley portion of the blade body, and the surface that matches the shape of the valley portion is formed. It is preferably joined to the rear end side of the trough, and the base has the end face at the tip. In this case, since the blade body and the base have a relatively simple shape with respect to the entire shape of the groove cutting blade, the groove cutting blade can be easily manufactured by processing the blade body and the base separately. . The blade body may be composed of a blade for a commercially available engraving knife.

  A grooving apparatus according to the present invention is a grooving apparatus for forming a groove for filling a welding rod at a joint of a sheet floor material laid on a floor surface, the apparatus main body, and the groove according to claim 1 or 2. The apparatus body has a rectangular planar shape, is provided so that the inner side is higher than both ends of the bottom portion and can be supported at both ends of the bottom portion, and the groove cutting blade is The base body is provided on the element main body so as to incline in the vertical direction with respect to the length direction of the bottom portion, extend in a direction penetrating the bottom portion, and project the blade edge downwardly from the bottom portion so that the protrusion amount can be adjusted. Is a feature.

  In the grooving device according to the present invention, the device main body is provided so that the inside of both ends of the bottom portion is higher than the both ends of the bottom portion and can be supported at both ends of the bottom portion. Hard to be affected by fine irregularities on the floor surface. Since it is installed with two lines at both ends of the bottom, for example, it is less susceptible to the influence of fine irregularities on the floor than when it is installed on the floor with a flat surface or with four points using wheels or the like. For this reason, even if there are fine irregularities on the floor surface, the irregularities can be absorbed and grooves can be formed so as not to protrude from the seam of the sheet flooring.

  In the grooving apparatus according to the present invention, when the grooving blade is provided at one end of the apparatus main body and the cutting edge faces the one end side of the apparatus main body, the one end side of the apparatus main body is moved forward. By moving the apparatus main body along the floor surface, the groove can be formed up to the end of the floor surface. In addition, the width and depth of the groove to be formed can be changed by adjusting the protrusion of the cutting edge of the groove cutting blade. Smooth ends for improving slippage on the floor may be provided at both ends of the bottom of the apparatus main body.

  A sheet floor grooving machine according to the present invention includes a grooving apparatus according to the present invention, a reference member, and a pair of mounting members, and the grooving apparatus is attached to both side edges along the length direction. It has a pair of parallel linear slide parts, the cutting edge is provided at an equal distance from each slide part, and the reference member has an elongated plate shape and has side edges along its length direction. Each part has a linear guide part that can slide each slide part, each attachment member is attached to both ends of the reference member, and has a protruding part that protrudes in the width direction of the reference member from the guide part, The projecting portion can be inserted from the bottom surface of the reference member so that it can be inserted into the seam of the sheet flooring at a position separated from the guide portion in the width direction of the reference member by the same distance as the distance from the blade edge to each slide portion. It is characterized by having an insertion piece protruding downward

  The sheet flooring grooving machine according to the present invention can be used as follows. First, the insertion pieces of the attachment members attached to both ends of the reference member are inserted into the seam of the sheet floor material, and the reference member is installed on the floor surface. Since the insertion piece is provided at a position separated from the guide portion of the reference member by the same distance as the distance between the blade edge of the grooving device and each slide portion, each slide portion of the grooving device is provided on the guide portion of the reference member. , The cutting edge of the groove cutting edge can be positioned at the seam of the sheet flooring. A groove can be formed at the seam by moving the grooving device along the reference member in a state where one slide portion of the grooving device is in contact with the guide portion of the reference member. In this way, even if not skilled in grooving work, it is easy to form a groove straight along the seam, and the floor surface can be finished cleanly.

  Since the insertion piece is inserted into the joint, the reference member is difficult to move during the grooving operation, and it is easy to form the groove straight along the joint. Since the cutting edge of the grooving blade is provided at an equal distance from each slide portion, the cutting edge can be applied to the seam regardless of which slide portion of the grooving device is applied to the guide portion of the reference member. Thus, the groove can be formed at the joint regardless of the direction of the grooving device. Since each attachment member is detachable at both ends of the reference member, it can be used by being attached to a different reference member.

  According to the present invention, it is possible to provide a grooving blade, a grooving device, and a sheet floor grooving machine that can smoothly perform the grooving operation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a grooving blade, a grooving apparatus, and a sheet floor grooving machine according to an embodiment of the present invention.
As shown in FIGS. 1 to 5, the sheet flooring grooving machine includes a grooving device 11, a reference member 12, and a pair of mounting members 13.

  As shown in FIGS. 1 and 2, the grooving device 11 has a device main body 21, a grooving blade 22, a blade fixing member 23, and a grip 24. The apparatus main body 21 is made of a stainless steel rectangular plate, and an elongated cut portion 21a having a predetermined width and depth is formed at the center position in the width direction of one end portion. The apparatus main body 21 is slightly bent at a position slightly closer to one end than the center in the length direction so that the bottom side becomes a valley along a line parallel to the width direction. Thereby, the apparatus main body 21 is provided so that the inner side of both ends of the bottom portion 21b is higher than both ends of the bottom portion 21b and can be supported at both ends of the bottom portion 21b. The apparatus main body 21 forms a pair of linear slide portions 21c whose both edges along the length direction are parallel to each other. The apparatus main body 21 is provided with a smooth surface by fluorine processing on the entire surface of the bottom 21b in order to improve the slip on the floor surface.

  As shown in FIG. 3, the groove cutting blade 22 is made of stainless steel and includes a blade body 25 and a base portion 26. The blade body 25 is elongated and has substantially the same V-shaped cross-sectional shape, and a blade edge 25a is formed at the tip. The base portion 26 is elongated and has a shape in which the side surface on the tip side of the cylinder is cut out so as to coincide with the valley portion of the blade body 25. The base portion 26 has, on the side surface on the distal end side, a joint portion 26a having a mountain-shaped cross-sectional shape that can be joined to the valley portion so that the shape coincides with the valley portion inside the blade body 25. The base portion 26 has a tip end face 26b inclined. The base portion 26 is attached by bonding the joint portion 26a to the inside of the rear end side of the blade body 25 with an adhesive so that the blade edge 25a protrudes from the end surface 26b.

  The groove cutting blade 22 can form a V-shaped cross-sectional groove, and a portion protruding from the end surface 26b of the blade body 25 forms a blade portion 25b. The blade portion 25b is elongated and has a valley portion 25c extending along the length direction from the blade edge 25a so as to be able to pass a shaving piece when forming a groove with the blade edge 25a. The end surface 26b is arranged at the other end of the blade portion 25b so as to block and close the valley portion 25c in the length direction, and the scraped piece that has passed through the valley portion 25c can be discharged from the valley portion 25c, on the open side of the valley portion 25c. It inclines so that it may face to the one side wall side of the trough part 25c.

  As shown in FIGS. 1 and 2, the blade fixing member 23 is made of stainless steel, and is attached to the upper part of the apparatus main body 21 so as to be adjacent to the innermost part of the cut portion 21 a. The blade fixing member 23 has an insertion hole 23a, an adjustment hole 23b, and an adjustment screw 23c. When the apparatus main body 21 is installed on the floor, the insertion hole 23a extends in a direction inclined with respect to the floor so as to face down on the side of the notch 21a of the apparatus main body 21, and the notch 21a is positioned in the extending direction. It is formed to do. The adjustment hole 23b is formed in the upper part of the blade fixing member 23 so as to communicate with the insertion hole 23a, and a female screw is formed on the inner surface. The adjustment screw 23c has a male screw that can be screwed into the female screw of the adjustment hole 23b, and is screwed into the adjustment hole 23b so as to be able to advance and retreat.

  In the blade fixing member 23, the groove cutting blade 22 is inserted into the insertion hole 23a. The blade fixing member 23 is directed from the bottom 21b of the apparatus main body 21 through the notch 21a so that the cutting edge 25a of the groove cutting edge 22 faces one end of the apparatus main body 21 where the notch 21a is formed. The groove cutting blade 22 is fixed to the apparatus main body 21 with an adjusting screw 23c so as to protrude downward. The groove cutting edge 22 is inclined in the vertical direction with respect to the length direction of the bottom portion 21b and extends in a direction penetrating the bottom portion 21b. The blade fixing member 23 can adjust the downward protrusion amount of the cutting edge 25a of the groove cutting blade 22 by moving the groove cutting blade 22 by loosening the adjusting screw 23c. Thereby, the grooving device 11 is V-shaped when the cutting edge 25a is located at an equal distance from each slide portion 21c and the device main body 21 moves along the floor surface with one end side of the device main body 21 facing forward. Grooves can be formed.

As shown in FIG. 1, the grip 24 is made of wood, has a circular cross-sectional shape, and is attached to the other end of the upper portion of the apparatus main body 21. The grip 24 is curved and extends toward the one end side of the apparatus main body 21 above the apparatus main body 21.
As shown in FIG. 4, the reference member 12 is formed of an elongated rectangular plate, and has a linear guide portion 12 a that can slide each slide portion 21 c at an edge portion along the length direction.

  As shown in FIG. 5, each attachment member 13 includes an attachment portion 27 and a positioning portion 28. The attachment portion 27 includes a rectangular upper plate 27a, a rectangular lower plate 27b arranged in parallel to the upper plate 27a with a predetermined interval between the upper plate 27a, and the upper plate 27a and the lower plate 27b. The side plate 27c is provided perpendicularly to the upper plate 27a and the lower plate 27b so as to connect the corresponding side edges. The mounting portion 27 has two mounting holes 27d penetrating in the thickness direction on the upper plate 27a. The positioning portion 28 has a long and narrow plate shape, and is fixed to the outer surface of the side plate 27c of the mounting portion 27 so as not to protrude from both side edges of the side plate 27c. The positioning portion 28 has a protruding portion 28a protruding in the length direction from one end of the side plate 27c, and an insertion portion 28b provided at the tip of the protruding portion 28a. The insertion portion 28b is provided perpendicular to the protruding direction of the protruding portion 28a, and has an insertion piece 28c that is thin and protrudes downward from the lower plate 27b of the mounting portion 27. The insertion piece 28c is provided at the position of the protruding portion 28a that is separated from one end of the side plate 27c by the same distance as the distance between the cutting edge 25a of the grooving device 11 and each slide portion 21c. Each attachment member 13 is formed in a symmetrical shape.

  As shown in FIG. 4, each mounting member 13 has both ends of the reference member 12 sandwiched between the upper plate 27a and the lower plate 27b of the mounting portion 27, and is standardized by mounting screws inserted into the mounting holes 27d. The member 12 is detachably attached to both ends. Each attachment member 13 is attached so that the guide portion 12a of the reference member 12 is aligned with one end of the side plate 27c, and the protruding portion 28a and the insertion piece 28c protrude in the width direction on the same side of the reference member 12, respectively. As a result, the protruding portion 28a protrudes along the bottom surface of the reference member 12 in the width direction of the reference member 12 in the direction perpendicular to the guide portion 12a, and the insertion piece 28c protrudes downward from the bottom surface of the reference member 12 to the seat floor. It can be inserted into the seam of the material.

Next, the operation will be described.
A sheet flooring grooving machine according to an embodiment of the present invention is used as follows in order to form a groove for filling a welding rod at a joint of a sheet flooring laid on the floor surface. First, the insertion pieces 28c of the attachment member 13 attached to both ends of the reference member 12 are inserted into the seam of the sheet floor material, and the reference member 12 is installed on the floor surface. Since the insertion piece 28c is provided at a position separated from the guide portion 12a of the reference member 12 by the same distance as the distance between the cutting edge 25a of the grooving device 11 and each slide portion 21c, the guide portion 12a of the reference member 12 is provided. When the slide portions 21c of the grooving device 11 are applied to the grooving device 11, the cutting edge 25a of the grooving blade 22 can be positioned at the seam of the sheet flooring. In the state where one slide portion 21c of the grooving device 11 is applied to the guide portion 12a of the reference member 12, the grip 24 is gripped, and the grooving device 11 is placed on the floor surface with one end side of the device main body 21 facing forward. By moving along the groove, a groove can be formed at the seam. In this way, even if not skilled in grooving work, it is easy to form a groove straight along the seam, and the floor surface can be finished cleanly.

  When forming a groove, the sheet floor material grooving machine has an end face provided so that a shaving piece cut by the cutting edge 25a of the groove cutting blade 22 passes through the valley portion 25c and blocks the valley portion 25c in the length direction. It extends along 26b. Since the end surface 26b is inclined toward the open side of the valley portion 25c, the shaving piece can be guided to the open side of the valley portion 25c and discharged from the valley portion 25c. Moreover, since the end surface 26b is inclined so as to be directed to any one of the side walls of the valley portion 25c, the shaving piece can be deflected in the lateral direction with respect to the grooving direction. For this reason, the shaving piece does not interfere with the grooving operation, and the grooving operation can be performed smoothly. Further, by adjusting the protrusion of the cutting edge 25a of the groove cutting edge 22, the width and depth of the groove to be formed can be changed.

  Since the insertion piece 28c is inserted into the joint, the reference member 12 is difficult to move during the groove cutting operation, and it is easy to form a groove straight along the joint. Since the cutting edge 25a of the grooving blade 22 is provided so as to be located at an equal distance from each slide portion 21c, the cutting edge 25a can be applied regardless of which slide portion 21c of the grooving device 11 is applied to the guide portion 12a of the reference member 12. Can be applied to the seam. Thus, a groove can be formed at the joint regardless of the direction of the grooving device 11. For this reason, even at the edge of the floor in contact with the wall or the like, the groove can be formed to the front of the wall by directing one end of the apparatus main body 21 toward the wall.

  Since the apparatus main body 21 is provided so that the inside of both ends of the bottom portion 21b is higher than both ends of the bottom portion 21b and can be supported at both ends of the bottom portion 21b, the floor surface to be installed is fine when forming the groove. Less susceptible to unevenness. Since it is installed with two lines at both ends of the bottom portion 21b, it is less affected by fine irregularities on the floor than when it is installed on the floor with a flat surface or with four points using wheels or the like. For this reason, even if there are fine irregularities on the floor surface, the irregularities can be absorbed and grooves can be formed so as not to protrude from the seam of the sheet flooring.

  Since the blade body 25 and the base portion 26 have a relatively simple shape with respect to the entire shape of the groove cutting blade 22, the groove cutting blade 22 can be easily processed by processing the blade body 25 and the base portion 26 separately. Can be manufactured. Since each attachment member 13 can be attached to and detached from both ends of the reference member 12, it can be used by being attached to a reference member having a different length or the like.

  Since the apparatus main body 21, the grooving blade 22 and the blade fixing member 23 of the grooving device 11 are made of stainless steel and have a predetermined weight, it is possible to reduce the force pressed against the floor during the grooving operation, Grooving work is easy.

It is a side view which shows the grooving apparatus of embodiment of this invention. It is a top view when the grip of the grooving apparatus shown in FIG. 1 is removed. (A) a front view showing a groove cutting edge, (b) a right side view showing the groove cutting edge, (c) a plan view showing the groove cutting edge, and (d) a base part of the groove cutting edge according to the embodiment of the present invention. It is a bottom view shown. It is a top view which shows the use condition of the reference | standard member and attachment member of the sheet flooring grooving machine of embodiment of this invention. It is the (a) top view, (b) front view, (c) right side view of the attachment member of the sheet floor material grooving machine shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Groove cutting device 12 Reference | standard member 12a Guide part 13 Mounting member 21 Apparatus main body 21a Cutting part 21b Bottom part 21c Slide part 22 Groove cutting blade 23 Blade fixing | fixed part 23a Insertion hole 23b Adjustment hole 23c Adjustment screw 24 Grip 25 Blade main body 25a Cutting edge 25b Blade portion 25c Valley portion 26 Base portion 26a Joint portion 26b End surface 27 Mounting portion 27a Upper plate 27b Lower plate 27c Side plate 28 Positioning portion 28a Projection portion 28b Insertion portion 28c Insertion piece

Claims (4)

Having a blade body and a base,
The blade body is elongated and has a trough with a V-shaped or U-shaped cross section so that a groove can be cut at the tip of the blade.
The base has an end surface inclined to face one side wall at a position away from the front end of the blade body toward the rear end, and closes the trough by the end surface.
A featured groove cutting blade. The base has a shape in which the side surface on the tip side of the cylinder is cut out so as to match the shape of the trough of the blade body, and the surface that matches the shape of the trough is joined to the rear end of the trough The base has the end face at the tip,
The groove cutting blade according to claim 1, wherein: A grooving device for forming a groove for filling a welding rod in a seam of a sheet floor material laid on the floor surface,
An apparatus main body, and the groove cutting blade according to claim 1 or 2,
The apparatus body has a rectangular planar shape, and is provided so as to be supported at both ends of the bottom with the inside being higher than both ends compared to both ends of the bottom,
The groove cutting blade is inclined in the vertical direction with respect to the length direction of the bottom portion and extends in a direction penetrating the bottom portion, and the blade tip is protruded downward from the bottom portion so that the protrusion amount can be adjusted. That it is provided,
A grooving device. A grooving device according to claim 3, a reference member, and a pair of mounting members,
The grooving device has a pair of linear slide parts parallel to each other on both side edges along the length direction, and the cutting edge is provided at an equal distance from each slide part,
The reference member has an elongated plate shape, and has a linear guide portion capable of sliding each slide portion on a side edge portion along the length direction thereof,
Each attachment member is attached to both ends of the reference member, and has a protrusion that protrudes from the guide portion in the width direction of the reference member, and the protrusion is the same distance as the distance from the blade edge to each slide portion. Only having an insertion piece projecting downward from the bottom surface of the reference member so that it can be inserted into a seam of the sheet flooring at a position away from the guide member in the width direction of the reference member.
Characterized sheet floor grooving machine.

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