JPH0336551B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention has a support having at least two legs substantially orthogonal to each other, and at least one leg of the support includes: A prismatic cutting tool with a rectangular base protruding from the leg is supported in a groove of the leg and fixed via a screw, particularly when the edge is made of steel. This invention relates to a grinding device useful for forming objects.

<Prior art> This type of cutting device is disclosed in, for example, U.S. Patent No.
The one disclosed in No. 3766649 is known. According to this cutting device, the cutting tool is held in a slit extending perpendicularly to the longitudinal direction of the leg of a generally Y-shaped support. The width of this slit corresponds to the thickness of the cutting tool. These slits have cylindrical extensions with internal threads. The cutting tools are fixed to these slits by means of setscrews screwed into female threaded holes of the slits.

<Problems to be Solved by the Invention> The cutting device described above has a problem in that the cutting tool cannot be held securely because the tightening screw is held only over a portion of its circumferential surface. Also, because the slits are very deep, parts of the same leg separated by the slits may move relative to each other. Therefore, in the above-mentioned cutting device, the cutting tool often becomes eccentric and sometimes falls off.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate these problems and ensure that the cutting tool is positioned and fixed to the leg portion, thereby obtaining accurate cutting conditions of the edge.

It is also an object of the present invention to enable complete processing of edges with a single device.

<Means for Solving the Problems> In order to achieve the above-mentioned problems, the present invention has a support body provided with at least two legs that are substantially orthogonal to each other, and at least one of the legs of the support body has a A groove is formed in which a prismatic cutting tool with a rectangular base is held so as to protrude toward the other adjacent leg, and this groove has walls extending parallel to each other that are connected to the support. The bit is held in contact with all walls of the groove so that its cutting edge protrudes toward the leg adjacent to the one leg. It is also characterized in that it is fixed to the one leg part via a screw.

Further, the present invention has a support having at least two legs that are substantially orthogonal to each other, and a prismatic cutting tool having a rectangular base is adjacent to at least one of the legs of the support. A groove is formed to be held so as to protrude toward the other leg of the support, and this groove has walls extending parallel to each other and formed at an angle with respect to the longitudinal direction of the support. is held in contact with all walls of the groove so that its cutting edge protrudes toward the leg adjacent to the one leg, and is fixed to the one leg via a screw. A ski edge grinding device characterized in that a groove for storing a file is formed in the free end surface of the leg adjacent to the leg holding the bit. .

<Function> The present invention holds the cutting tool in contact with all the walls of the groove formed in the leg.

Further, according to the present invention, it is possible to remove curls and the like during edge cutting using a file.

<Examples> Hereinafter, preferred examples of the present invention will be described.

In the embodiment shown in FIGS. 1 and 2, the support 1 has an L-shaped cross-section. However, as shown by the broken line in the figure, the support body 1 may also have a T-shape. Legs 4, 5 of support 1
The mutually contacting or intersecting surfaces 2, 3 form guide surfaces along which the running surface of the ski (not shown) and the edges of the side panels are slid during machining.

Two open-shaped grooves 6, 7 are formed in the leg 5 of the support 1, the mutually parallel walls of these grooves 6, 7 having, according to the illustrated embodiment: Although it is perpendicular to the surface 2 of the leg portion 4, it is inclined with respect to the longitudinal axis of the support body 1 (left-right direction in FIG. 1). The walls of the grooves 6, 7 may be inclined with respect to the surface 2 of the leg 4. The walls of the grooves 6 and 7 are inclined in opposite directions with respect to the longitudinal axis of the support 1, and the walls of the grooves 6 and 7 formed in the support 1 on the center side of the support is provided with a chamfered portion 8 near the groove opening. The chamfered portion 8 forms a space for receiving cutting waste.

A cutting tool 9 is fitted into one of the grooves 6 and 7 so as to contact all the walls of the groove 6, and the cutting tool 9 is made of a hard material such as hard metal or ceramic for cutting tools. It is formed into a prismatic shape with a square base. The cutting edge 10 of the cutting tool 9 protrudes from the leg portion 5 or its surface 3 toward the leg portion 4,
It is fixed via a screw 11 screwed into a screw hole 12. A recess 13 is formed to accommodate the head of the screw 11, and the cutting tool 9 projects from the base of the recess 13. By fixing the cutting tool 9 in such a manner that it can be easily loosened, the direction of the cutting tool 9 can be easily changed, so that the four cutting edges 10 of the cutting tool 9 can be used as appropriate. Of course, byte 9 can also be exchanged.

Two grooves 6 and 7 are formed to accommodate the tool bit 9, so when processing the edge of a ski, for example, the tool tool 9 is attached to the support 1 so that the tool tool 9 is at the rear when viewed in the processing direction. be able to.

And when cutting the edge of the ski,
By sliding the support 1 in the longitudinal direction along the surfaces 2 and 3 of the ski while pressing the ski running surface and the edge of the side plate against the surfaces 2 and 3 of the legs 4 and 5, the bite 9 is removed. Edges can be cut by the cutting blade 10.

Since the cutting tool 9 is held in contact with all the wall portions of the groove 10, its holding state is reliable. Therefore, there is no risk that the cutting tool 9 will fall off during edge cutting, and an accurate cutting state of the edge can be obtained.

Cutting tool 9 under pressure exerted during cutting
is pressed against the bottom wall of the groove 6, and it is very important that the conventional cutting tool is not simply passed through a slit and held mechanically integrally with a screw as in conventional devices. ing.

In addition, the wall portion of the groove 6 that accommodates the cutting tool 9 is
extending obliquely to the longitudinal axis of the support;
The cutting tool 9 has a rectangular base surface. Therefore, a cutting tool with a simple geometric shape is sufficient, and the rake angle and clearance angle can be determined by the inclination of the wall of the groove 6 with respect to the longitudinal direction of the support 1. No machining is required.

Further, the groove 6 for accommodating the cutting tool 9 is arranged near one end in the longitudinal direction of the support 1.
By providing chamfered portions 8, 8 in the vicinity of the groove openings on the walls of the grooves 6, 7 on the support center side, the handling of this cutting device becomes easy, and especially when cutting It becomes possible to process edges like drawing them with a planer.

Further, grooves 6 and 7 for storing the cutting tool 9 are arranged in both end regions in the longitudinal direction of the support body 1,
By forming these grooves 6 and 7 to extend and extend in opposite directions relative to the longitudinal direction of the support 1, this cutting device can be used with either the right or left hand.

Further, since the grooves 6 and 7 are formed such that their bottom wall portions are located below the surface 2 of the leg portion 4 adjacent to the one leg portion 5, the cutting tool 9 is held even more reliably. This makes it possible to cut the edge of the ski more cleanly and easily.

Furthermore, a groove 15 is formed in the free end surface 14 of the leg 4 of the support 1, into which a file 17 with a handle 16 is inserted. In addition, file 1
7 is preferably connected to the handle 16 by adhesive. If the edge of the ski is made of steel, for example, the file 17
This makes it easy to remove burrs that occur during grinding.

The provision of the file 17 allows complete machining of the edge of the ski with a single device.

As can also be seen in FIG. 2, the mutually intersecting surfaces 2, 3 of the legs 4, 5 of the support 1 form an angle slightly smaller than 90° (for example 85°).
Therefore, an unprocessed edge can be left and it is possible to prevent the edge from being processed in the transition region between the legs 4, 5.

According to the embodiment of FIGS. 3 and 4, the legs 5' of the support 1' are curved to fit the user's hand. Also, since a beveled edge 8' is formed in place of the chamfered portion 8 in the region of the grooves 6 and 7,
A space is easily formed to receive cutting debris generated during machining of the edge of the ski.

The file 17 is a groove 15 formed on the end surface of the leg portion 4.
It is stored inside. The portion of the file 17 protruding from the end surface of the leg portion 4 may be covered with a cover 16'. According to this embodiment, the groove 15 is formed at the center of the thickness of the leg portion 4, but the groove 20 in the end face of the cover 16' is formed at a position offset from the center. The average distance a of the grooves 20 from the surface 21 is equal to the average distance of the grooves 15 from both surfaces of the leg 4, but the average distance b of the grooves 20 from the surface 22 of the rib 9
is larger than the average distance a.

In the position of the cover 16' shown in FIG.
When the edge of the ski is processed using the support 1',
The angle between the running surface of the edge and the side surface is less than 90°. This is what many experienced skiers desire. When the cover 16' is rotated 180 degrees and inserted, the surface 2 of the leg 4 is aligned with the surface 2 of the cover 16'.
Become flush with 1. This is suitable for intermediate skiers.

Further, the leg portion 5 has a recess 23, and the transition portion from the recess 23 to the surface 24 has an acute angle shape.
This sharp edge 25 is used, by way of example, to scrape wax from the running surface of a newly waxed ski. Excess wax is removed from the recess 23
be housed inside. The edge 27 is not included in the plane of the surface 24 of the leg 4 because of the rounded portion 26 .

In this way, the groove 20 of the cover 16' for storing the file 17 is formed at an asymmetrical position with respect to the thickness of the cover 16', and the average distance a of the groove 20 from the surface 21 is set to Surface 2 of part 4
equal to the average distance of the file from and cover 1
By making the average distance b of the groove 20 from the other surface 22 of the 6' larger than the other average distance of the groove 20, the edge of the ski can be made as sharp as 90 degrees as the cover 16' of the file 17 is inserted. can also be set.

<Effects of the Invention> As described above, according to the present invention, by holding the cutting tool in contact with all the walls of the groove formed in the leg, the cutting tool can be reliably positioned and fixed to the leg. Can be done. Therefore, it is possible to avoid the cutting tool falling off when cutting the edge of the ski, and it is possible to obtain an accurate cutting condition of the edge.

Furthermore, according to the present invention, it is also possible to remove bulges and the like during edge cutting using a file. Complete machining of the edge can therefore be carried out with a single device.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the cutting device according to the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a plan view showing another embodiment of the cutting device according to the present invention. FIG. 4 is a sectional view taken along the line -- in FIG. 3. 1... Support body, 4, 5... Legs, 6, 7...
Groove, 9... Cutting tool, 10... Cutting blade, 11...
Screw, 15, 20... groove, 17... file.

Claims (1)

[Scope of Claims] 1. A support having at least two legs that are substantially perpendicular to each other, and a prismatic cutting tool having a square base surface on at least one of the legs of the support. A retaining groove is formed to protrude from the surface of the leg, and this groove has walls extending parallel to each other and formed at an angle with respect to the longitudinal direction of the support. A ski edge grinding device characterized in that the blade is held in contact with all the walls of the groove so as to protrude and is fixed to the one leg via a screw. 2. The groove is arranged near one end in the longitudinal direction of the support, and a chamfer is provided in the groove opening area of the wall on the center side of the support. The ski edge grinding device according to item 1. 3. The grooves are arranged at both end regions in the longitudinal direction of the support, and each groove is formed to extend and be inclined in opposite directions with respect to the longitudinal direction of the support. A ski edge grinding device according to claim 1 or 2. 4. The groove is formed such that its bottom wall is located below the surface of the leg adjacent to the one leg, and one end surface of the cutting tool is held by the bottom wall. A ski edge grinding device according to claim 1, characterized in that: 5. The ski according to claim 1, wherein an acute angle is formed between the surface of one leg from which the cutting edge of the cutting tool protrudes and the adjacent surface of the other leg. Edge grinding equipment. 6 A support having at least two legs that are substantially orthogonal to each other, and a prismatic cutting tool with a rectangular base is attached to at least one leg of the support from the surface of the leg. A protruding holding groove is formed, and this groove has walls extending parallel to each other and formed at an angle with respect to the longitudinal direction of the support, and the cutting edge of the cutting tool protrudes. In the ski edge grinding device, the ski edge grinding device is held in contact with all walls of the groove and is fixed to one of the legs via screws, A ski edge grinding device characterized in that a groove for storing a file is formed in the free end surface of adjacent legs. 7 A cover is provided on the file held on the end face of the leg, and the groove of the cover that stores the file is formed at an asymmetrical position with respect to the thickness of the cover, and the average distance of the groove from the surface of the cover is such that it holds the file. The average distance of the grooves from the other surface of the cover is greater than the other average distances of the grooves. ski edge grinding equipment.