JP2017159656A - Trimmer implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate shortcomings of trimmers generally used (for example, one disclosed in Japanese Patent Application Laid-Open No. H10-225910) including: dangerous jumping or side-slipping of a bit that may occur when hitting a hard part of wood; and difficulty in making a small arc.SOLUTION: A trimmer implement comprises: a holding base for holding a base plate disposed at the lower end of an external cylinder that vertically moves a trimmer body; a through-hole allowing a bit of the trimmer body to be inserted into the holding base; a first contact piece contacting the base plate on the holding base; a second contact piece disposed opposing the first contact piece, and contacting a side wall of the base plate; and a projecting piece disposed in the through-hole and extending toward a center of the holding base.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safe trimmer jig for processing a wooden board on an arc.

  If a trimmer that is generally used (for example, the one described in Japanese Patent Application Laid-Open No. 10-225910) is used as it is, the bit jumps up or skids when the trimmer bit hits a hard part of a tree. It can be dangerous.

JP-A-10-225910

  Therefore, an object of the present invention is to provide a new trimmer jig that can process a trimmer more safely and can process a wooden board into an arc shape.

The trimmer jig of the present invention has a holding base that holds a base plate provided at the lower end of an outer cylinder that moves up and down the trimmer main body, and a through hole into which the bit of the trimmer main body provided in the holding base can be inserted. And a first abutting piece that applies one end of the side wall of the base plate to a part of the holding base, and a first abutting piece provided opposite to the first abutting piece and applied to the other end of the side wall of the base plate. Two contact pieces and a protruding piece extending toward the center of the holding base in the through hole are provided.
The trimmer jig of the present invention includes a holding base that holds a base plate provided at the lower end of an outer cylinder that moves up and down the trimmer main body, a long guide body having one end fixed to the holding base, and the guide A slide body provided to wrap the body, a projecting piece extending from the bottom surface of the slide body toward the center of the holding base, and a fixing member that can fix the slide body to the guide body. The piece is provided with a central axis that protrudes from the tip of the back surface, and a through hole into which the bit of the trimmer main body can be inserted into the holding base, and the guide body is fixed and the base plate is fixed on the holding base. A first abutting piece to be contacted and a second abutting piece provided to face the first abutting piece and against the side wall of the base plate are provided.

Further, a stopper for preventing the holding base from moving in a direction perpendicular to the opposing direction is provided.
In addition, a third contact piece and a fourth contact piece are provided on the line orthogonal to the line connecting the first contact piece and the second contact piece as the stopper.
Further, a screw hole is provided in the coupling plate provided in the outer cylinder 2 as the stopper and the second contact piece, and a screw is screwed into the screw hole.

In addition, a memory serving as a guide is provided on the surface of the guide body.
In addition, the through hole into which the projecting piece enters and the through hole into which the bit enters are formed as a through hole.
Further, the fixing member is a screw hole provided in the slide body and a screw screwed into the screw hole.
Further, the slide body is a U-shaped body and a bottom plate that covers the U-shaped body, and the protruding piece is integrally molded with the bottom plate.

The protruding piece has a length starting from an end surface of the holding base and extending toward the center of the through hole.
Also, a U-shaped control plate having openings at both ends is attached to the rear end of the holding base, and a raised portion is provided above the end of the holding base in the rear end direction, followed by folding. A protruding box is inserted into the control plate from the opening, a reinforcing box is provided on the control plate, and the folded portion can be fixed to the control plate. .
Further, the folded portion is divided into two forks, and a screw inserted from above the control plate is inserted between the forks, and is connected to a nut on the back surface of the folded portion.

  In addition, a U-shaped control plate having openings at both ends is attached to the rear end of the holding base, a long guide body is provided, a slide body is provided so as to wrap the guide body, and the protrusion is projected on the slide body. A piece is provided, the end of the guide body is inserted from the opening of the control plate, and the protruding piece and the guide body are coupled.

Further, a gap is provided between the guide body and the top plate of the control plate, and a recess opening toward the gap is formed in a part of the inside of the control plate, and a side portion of the control plate is formed in the recess. The projecting piece protruding from is inserted, and the guide body is lifted so as to eliminate the gap.
Furthermore, a fixing member for fixing the slide body to the memory and the guide body is provided on the slide body, a rotating plate capable of contacting the slide body is provided, and the rotating plate is fixed to the guide body. The mounting base can be freely rotated, and the diameter of the end of the rotating body that contacts the slide body is gradually changed.

  As described above, the trimmer jig of the present invention can fix the trimmer safely. In addition, since the central axis can be located close to the bit, an extremely small arc can be created. It can be processed even if there are obstacles such as walls near the bit. Of course, a large arc can be created. When the diameter of the arc is determined using the memory, it can be finely adjusted using a fine adjustment mechanism. Also, the trimmer can be fixed at the correct position at any time.

  It is a perspective view of a trimmer jig and a trimmer concerning an embodiment of the invention.   It is a top view of the same trimmer jig.   FIG.   It is principal part sectional drawing of the other Example.   It is a top view of the other Example.   It is one side view which shows a part of same Example in a cross section.   It is a cutaway side view of the other Example.   It is a side view of the guide body used for the same Example further.   It is a schematic side view which shows a part of the Example in a cross section.   It is a top view of the Example.   It is a side view of the same Example.   It is a perspective view of the components used for the Example.   It is a perspective view of the part which can be used for the Example.   It is one side view of the guide body used for the Example.   It is a perspective view of the components shown in FIG.   It is a top view of the principal part used for the Example.   It is a side view of the principal part shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1, 2, and 3, a holding base 4 that holds a base plate 3 that is provided at the lower end of an outer cylinder 2 that slides up and down the trimmer body 1 is provided. The outer cylinder 2 is fixed to the trimmer body by inserting the screw 5 into the screw hole 7 of the support piece 6. The outer cylinder 2 and the base plate 3 are often made of a transparent resin. The holding base is made of iron, aluminum, synthetic resin or the like.

  A guide body 8 is provided, a slide body 9 provided so as to wrap around the guide body 8, a protruding piece 10 extending from the bottom surface of the slide body 9 toward the center of the holding base 4, and the slide body 9 as the guide body 8 And a fixing member that can be freely fixed. The fixing member includes a screw 11 and a screw hole 12. Other means may be used. As will be described later, the holding base 4 is provided with a first contact piece 15. The guide body 8 is attached to the abutment piece 15 in a cantilever shape with screws.

The protruding piece 10 is provided with a central shaft 13 that protrudes from the tip of the back surface. The center shaft 13 is provided with a hole in, for example, an iron protruding piece 10, and the iron center shaft 13 is inserted therein and fixed by welding or caulking. Other means may be used.
A through hole 14 into which the protruding piece 10 can be inserted is provided in the holding base 4. The through hole 14 extends until the bit of the trimmer body 1 can be inserted. Alternatively, the through hole 14 may be shortened and a through hole into which the bit 18 of the trimmer 1 can be inserted independently may be provided. The diameter to be processed may be smaller if the common through hole is used.

  A first abutting piece 15 for fixing the guide body 8 and abutting the base plate 3 on the holding base 4, and a second abutting against the first abutting piece 15 and against the side wall of the base plate 3. A contact piece 16 is provided. For example, two pieces may be formed in a square shape with respect to the first abutting piece 15 as long as the countermeasures are opposed. Reference numeral 17 denotes a memory provided in the guide body 8.

First, the approximate curve diameter is set using the memory 17, and the screw 11 is screwed into the screw hole 12 to fix the slide body 9 to the guide body 8. Next, the center shaft 13 is inserted into the center hole of the piece of wood that is the workpiece. The trimmer base plate 3 is then placed on the holding base 4. At this time, the first contact piece 15 and the second contact piece 16 come into contact with the side wall of the base plate 3 of the trimmer and are fixed. At the same time, the third contact piece 24 and the fourth contact piece 25 are also abutted against and fixed to the side wall of the base plate 3.
A workpiece is processed into a circular arc shape with a trimmer.

  FIG. 4 shows another embodiment. In the example of FIG. 1, the trimmer moves upward. In this example, the trimmer is not moved upward. The outer cylinder 2 is provided with a coupling plate 19 for coupling other objects. The coupling plate 19 is integrally provided with a protruding piece 21. A recess 20 for inserting the protruding piece 21 is provided in the second contact piece 16. Further, a screw hole 22 is provided in communication with the second contact piece 16 and the coupling plate 19, and a screw 23 is screwed into the screw hole.

  Then, the outer cylinder 2 is firmly fixed to the second contact piece 16 with the screw 23, and does not move in the horizontal direction as well as the upward direction. At this time, it is not necessary to provide the third contact piece 24 and the fourth contact piece 25. Although the protruding piece 21 is provided on the protruding plate 19 for other object connection, there is a problem on the side of the connecting plate 19, and if the connecting plate 19 does not have the protruding piece 21, it is not necessary to provide the recess 20.

Next, another embodiment will be described. The description is from FIG. 5 to FIG. 17, and the figure numbers shown in FIG. 5 to FIG. 17 have the same numbers as those in FIG. 1 to FIG.
1 to 4 show a case where a hole is made in a plate having a large radius or a case where a hole is made in a plate having a small radius, and there is no obstacle around the hole to be opened. If there is an obstacle such as a wall around the hole to be opened, the guide body 8 becomes an obstacle and the hole cannot be formed. Therefore, what is provided to eliminate this drawback is shown in FIGS.

  As shown in FIGS. 5 to 7, the protruding piece 10 is provided so as to face the through hole 14 of the holding base 4. The protruding piece 10 is made of a thin iron plate (may be an aluminum plate) and has a U-shape as a whole. A control plate 29 is attached to the rear end of the holding base 4 and has a protruding piece 10 and a basic U-shape having an opening 26 in the exiting direction, and has projecting portions 27 and 28 on both sides of the lower end.

  Since the protruding piece 10 is made of a thin iron plate, it is weak. Therefore, the box 30 is attached in the U-shape to increase the strength. It is attached by screws 31 and 32 on the bottom side and screws 33 and 34 on the side surface. A large screw 35 is inserted into the upper end of the control plate 29 and a nut 36 is screwed. The lower end of the screw 35 does not hit the head of the box 30. The upper side of the protruding piece 10 is divided into two for avoiding the screw 35, and is tightened by the screw 35 and the nut 36, and the protruding piece 10 cannot move. When the screw 35 is loosened, the protruding piece 10 can be moved left and right. The projecting portions 37 and 38 are welded to the compatible upper side wall of the control plate 29, and the small-diameter projecting piece provided at the tip of the projecting portions 37 and 38 penetrates the upright portion of the control plate 29. The tip does not hit the box 30.

A central shaft 13 shown in FIG. 12 is attached to the tip of the lower side of the protruding piece 10 by welding. Although it has a complicated shape for welding, it is simplified in FIG.
Next, how to use this apparatus will be described. The screw 35 is loosened, the protruding piece 10 is moved left and right, and the central shaft 13 is inserted into the hole in the wood board to be processed. The machining radius becomes shorter as the central axis 13 is on the right side. Since there is no long guide body 8 in this device, it does not get in the way, and even if there is a wall around the wood board to be processed, it can be used if the protruding piece 10 is at the leftmost end and the diameter is shorter than that. .

  Next, the case where the elongate guide body 8 is used is demonstrated mainly using FIG. 10, FIG. First, the protruding piece 10 in FIGS. 5, 6, and 7 is pulled out from the holding base 4. Next, the slide body 9 is slidably inserted into the guide body 8. The end face of the guide body 8 has a complicated shape as shown in FIG. 14, and various companies have various shapes, which are also used. 10 and 11 show a state in which the slide body 9 is positioned at the rightmost end.

  The bottom surface of the slide body 9 is provided with a protruding piece 10 (which is different from that shown in FIGS. 5, 6, and 7 but is given the same number). Specifically, the bottom surface of the slide body 9 is configured to be a part of the protruding piece 10. Accordingly, the protruding piece 10 moves together with the slide body 9. The slide body 9 is fixed to the guide body 8 by screwing screws 11 provided on the top plate of the slide body 9. Positioning is performed by the memory 17. The guide body 8 that has passed through the slide body 9 enters from the opening 26 of the control plate 29. At this time, a screw or the like protruding inside the control plate 29 enters the space of the guide body 8 and does not get in the way. First, a slight gap 39 is provided between the guide body 8 and the control plate 29 as shown in FIGS. Later, the guide body 8 is lifted and the gap 39 disappears.

  As shown in FIGS. 8, 9, and 11, a recess 40 is provided at the tip of the guide body 8. The opening of the recess 40 is directed to the gap 39. And the protrusions of the protrusions 37 and 38 enter the recess 40. A nut 36 is provided in the gap 39, and a screw 35 is screwed into the nut 36. The protruding piece 10 may be thicker than that shown in FIG. By tightening the screw 35, the gap 39 is eliminated, and the protruding piece 10 is flush with the holding base 4.

  Next, the movement of this apparatus will be described. First, the protruding piece 10 in FIGS. 5, 6, and 7 is pulled out from the holding base 4. Next, the slide body 9 is slidably inserted into the guide body 8. The slide body 9 is positioned at a predetermined location using the memory 17, and the screw 11 is tightened and fixed. The guide body 8 is inserted from the opening portion 26 of the control plate 29, and the tip portions of the projecting portions 37 and 38 are inserted into the recess 40. Next, the gap 39 is eliminated by twisting the screw 35, and the guide body 8, the slide body 9, and the protruding piece 10 are lifted upward. Since the guide body 8 is used, processing with a large radius can be performed.

  Next, a fine adjustment mechanism that can be used for the long guide body 8 will be described. As shown in FIG. 15, a rotating plate 42 is made rotatable by a screw 43 at one end of the mounting base 41. One end of the rotating plate 42 is curved and is configured to gradually increase in diameter. A handle 44 is attached to the other end of the rotating plate 42. A butterfly bolt 45 is attached to the other end of the mounting base 41. As shown in FIG. 13, the mounting base 41 is inserted from the groove on the side surface of the guide body 8 and can be fixed to the guide body 8 with the butterfly bolt 45.

  The memory 17 provided on the upper surface of the guide body 8 performs predetermined positioning, and the screw 11 of the slide body 9 is tightened to substantially fix the slide body 9 to the guide body 8. The tip of the rotating plate 42 is applied to the slide body 9, and the butterfly bolt 45 is tightened to be fixed to the guide body 8. Further, when the rotary plate 42 is slightly rotated by holding the handle 44, the slide body 9 that is in contact with the diameter of the end of the rotary plate 42 can be moved a little. The screw 11 is tightened to complete the fine adjustment. Of course, the present invention can also be applied to the case of FIG.

Next, with reference to FIGS. 16 and 17, a mechanism will be described in which the trimmer body 1 that moves up and down comes to the initially determined position during the next operation and the tip of the bit 18 of the trimmer body 1 has a constant depth. .
As shown in FIGS. 16 and 17, screws 46 are provided on the heads of the protrusions 37 and 38 provided on the control plate 29, a lever 47 is attached therebetween, and a pair of levers 47 are connected by a connecting body 50. . By rotating the lever 47, the connecting body 50 can be applied to the peripheral edge of the lower end of the trimmer body 1, and the trimmer body 1 can be positioned at the previously determined position. Of course, the present invention can also be applied to the case of FIG.

  5 and 10, in order to fix the base plate 3 provided at the lower end of the outer cylinder 2 of the trimmer body 1 to the holding base 4, one end of the base plate 3 is connected to the end of the control plate 29 (first contact piece 15). ) And the other end of the base plate 3 is brought into contact with the second contact piece 16. The second abutting piece 16 is substantially coupled to the outer cylinder 2 with a screw 23 (not shown in FIGS. 5 and 10). This coupling is sufficient, and there is no problem even if the distance between the first contact pieces 15 is small. More preferably, a third contact piece 24 and a fourth contact piece 25 are provided.

  In the case of a structure suitable for drilling a short-diameter hole shown in FIGS. 5, 6, and 7, the length of the protruding piece 10 starts from the holding base 4 (not including an upright part or a folded part). This is the length toward the center of the through hole 14. 5, 6, and 7, since the protruding piece 10 is thin, it has a shape with a folded portion. However, in the case of a thick iron plate, a rising portion or a folded portion is unnecessary, and a stopper may be provided from the side. However, there is a drawback that processing is difficult and expensive.

  As described above, the trimmer jig of the present invention can fix the trimmer safely. In addition, since the central axis can be located close to the bit, an extremely small arc can be created. Of course, a large arc can be created.

  The present invention can be used with any trimmer and is highly safe.

1: Trimmer body 2: Outer cylinder 3: Base plate 4: Holding base 5: Screw 6: Support piece 7: Screw hole 8: Guide body 9: Slide body 10: Projection piece 11: Screw 12: Screw hole 13: Center shaft 14 : Through hole 15: First contact piece 16: Second contact piece 17: Memory 18: Bit 19: Connecting plate 20: Recess 21: Projection piece 22: Screw hole 23: Screw 24: Third contact Piece 25: Fourth contact piece 26: Opening portion 29: Control plate 30: Box 31, 32, 33, 34: Screw 35: Screw 36: Nut 37, 38: Protruding portion 39: Gap 40: Recessed portion 41: Mounting base 42: Rotating plate 43: Screw 44: Handle 45: Butterfly bolt 46: Screw 47: Lever 50: Connected body

Claims (15)

A holding base that holds a base plate provided at the lower end of an outer cylinder that moves up and down the trimmer body, a through hole that can be inserted into the bit of the trimmer body provided in the holding base, and one end of a side wall of the base plate A first abutting piece that contacts a part of the holding base, a second abutting piece that is provided opposite to the first abutting piece and that contacts the other end of the side wall of the base plate, and A trimmer jig comprising a projecting piece extending toward the center of the holding base in the through hole.   A holding base that holds a base plate provided at the lower end of an outer cylinder that moves up and down the trimmer body, a long guide body that has one end fixed to the holding base, and a slide body that is provided so as to wrap the guide body And a projecting piece extending from the bottom surface of the slide body toward the center of the holding base, and a fixing member that allows the slide body to be fixed to the guide body. The projecting piece projects from the tip of the back surface. A central axis, a through-hole into which the bit of the trimmer body can be inserted into the holding base; a first abutting piece for fixing the guide body and hitting the base plate on the holding base; A trimmer jig provided with a second abutting piece provided opposite to the first abutting piece and against the side wall of the base plate.   The trimmer jig according to claim 2, further comprising a stopper that prevents the holding base from moving in a direction perpendicular to the facing direction.   The third contact piece and the fourth contact piece are provided on the line orthogonal to the line connecting the first contact piece and the second contact piece as the stopper. Trimmer jig.   4. A screw hole is provided in the coupling plate provided in the outer cylinder 2 as the stopper and the second abutting piece, and a screw is screwed into the screw hole. Trimmer jig.   The trimmer jig according to claim 2, wherein a memory serving as a guide is provided on a surface of the guide body.   The trimmer jig according to claim 2, wherein the through hole through which the protruding piece enters and the through hole through which the bit enters are made to communicate with each other.   The trimmer jig according to claim 2, wherein the fixing member is a screw hole provided in the slide body and a screw screwed into the screw hole.   The trimmer jig according to claim 2, wherein the slide body is a U-shaped body and a bottom plate that covers the U-shaped body, and the protruding piece is integrally formed with the bottom plate.   The trimmer jig according to claim 1, wherein the protruding piece has a length starting from an end surface of the holding base toward a center of the through hole.   A U-shaped control plate having openings at both ends is attached to the rear end portion of the holding base, and the protruding piece is provided with a raised portion above the end portion in the rear end direction of the holding base, followed by a turn-up portion. The protruding piece is inserted into the control plate from the opening, a reinforcing box is provided on the control plate, and the folded portion can be fixed to the control plate. The trimmer jig described.   The trimmer jig according to claim 11, wherein the folded portion is divided into two forks, a screw inserted from above the control plate is inserted between the forks, and is coupled to a nut on the back surface of the folded portion.   A U-shaped control plate having openings at both ends is attached to the rear end of the holding base, a long guide body is provided, a slide body is provided so as to wrap the guide body, and the protruding piece is attached to the slide body. The trimmer jig according to claim 1, wherein an end portion of the guide body is inserted from an opening of the control plate, and the protruding piece and the guide body are coupled.   A gap is provided between the guide body and the top plate of the control plate, and a concave portion that opens toward the gap is formed in a part of the inside of the control plate, and the concave portion projects from a side portion of the control plate. The trimmer jig according to claim 13, wherein the protruding piece is inserted and the guide body is lifted so as to eliminate the gap.   The slide body is provided with a memory and a fixing member for fixing the slide body to the guide body, a rotation plate capable of contacting the slide body is provided, and the rotation plate can be fixed to the guide body The trimmer jig according to any one of claims 2 to 13, wherein the trimmer jig is configured so as to be rotatable on a table, and the diameter of the end of the rotating body that contacts the slide body is gradually changed.

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