JPH0457161B2 - - Google Patents

Description

Claim 1: First and second parts located on both sides of the tool in a common plane, leaving a gap between them for the passage of the tool.
A guide plate for worker injury prevention and workpiece material for woodworking machines, especially wood milling machines, comprising a stopper plate and stopper rods parallel to each other that fit into the grooves of the stopper plate and cover the gap like a bridge. In the safety stopper provided as a stopper, the stopper rod 32 is attached to the first stopper plate 10 in a manner that it does not come off, and can be inserted into the groove 30 of the second stopper plate 12 from the groove 30 of the first stopper plate 10. Safety stopper.

2. The depth of the groove 30 of both stopper plates 10, 12 is set to be greater than the height of the stopper rod 32 so that a gap is created between the groove 30 and the bottom surface of the groove of the stopper rod 32.
Safety stopper as described in section.

3. The scope of claim 1 or 2, characterized in that the end of each groove 30 remote from the tool 14 has a groove bottom surface 36 that is curved towards the stop surface in a substantially arc-shaped manner. Safety stopper as stated.

4 From the groove 30 of the first stopper plate 10 to the second
4. Safety stop according to claim 1, characterized in that an auxiliary device is provided for pivoting the stopper rod (32) into the groove (30) of the stopper plate (12).

5. Safety stop according to claim 4, characterized in that the pivoting aid consists of an ejection cam 70 which can be pivoted into each groove 30.

6 Rotating rods 6 that can be operated from the outside on all execution cams 70 of the stopper plate 10
6. The safety stopper according to claim 5, wherein the safety stopper is provided with a safety stopper.

7 Rotating rod 66, execution cam 70
7. The safety stopper according to claim 6, further comprising a return spring 72 for rotating the safety stopper to the initial position within the groove 30.

8. Claim 1 characterized in that the stopper plates 10 and 12 are configured to be movable relative to each other in order to adjust the opening width of the gap 16.
The safety stopper described in any one of paragraphs 7 to 7.

9. A longitudinal groove 56 is formed on either the upper or lower side of the stopper rod 32, and a locking element is provided which engages with the longitudinal groove 56 when the stopper rod 32 is fitted into the corresponding groove 30. A safety stopper according to any one of the ranges 1 to 8.

10. Safety stop according to claim 9, characterized in that the locking element is a spring-loaded ball 58 that fits into the groove 30.

11. The safety stopper according to claim 10, wherein the sphere 58 on the second stopper plate 12 side is provided at the end of the groove 30 on the tool 14 side.

12 Each stopper plate 10, 12 has a groove 30
A continuously adjustable inset body 22 formed of
Claims 1 to 1 include:
Safety stopper described in any one of items up to 11.

13 Each fitting body 22 has a stopper plate 10,
On the back side facing 12, there is a stopper plate 10,
Guide post 90 interlocks with 12 vertical guide notches 98
13. The safety stopper according to claim 12, characterized in that the safety stopper has:

14 The guide notch 9 of the stopper plate 10, 12 protrudes from the rear wall of the fitting body 22 and maintains a distance therefrom.
14. A safety stop according to claim 13, characterized in that guide rods (38) which engage two guide bars (40) provided at the guide column (90) project from both sides of the guide post (90).

15. The device according to any one of claims 12 to 14, characterized in that the corresponding stopper plates 10, 12 are provided with adjustment screws 80 for adjusting the height of the fitting body 22. Safety stoppa.

16. A safety stop according to claim 15, characterized in that the free end of the adjusting screw 80 has a head 84 that fits into a seat 86 that opens into the stopper plates 10, 12 of the insert 22.

17. The safety stopper according to any one of claims 12 to 16, further comprising a limit stopper 88 that limits the lowering of both fitting bodies 22.

18. The safety stopper according to any one of claims 12 to 17, characterized in that each fitting body 22 is provided with a scale 92.

19. Claim 1, characterized in that the lowermost stopper rod 32' of the upright stopper plates 10, 12 has a notch 64 on its top surface which reduces its height over most of its entire length. Safety stopper described in any one of paragraphs 1 to 18.

20 The lowermost groove 30' of the upright stopper plates 10, 12 has a rib-like protrusion 52 on the groove bottom surface, and the lowermost stopper rod 32' is pivotally fitted into the lowermost groove 30'. Rib-like protrusion 5
2 is the bottom stopper rod 3 facing this.
The safety stopper according to any one of claims 1 to 19, characterized in that the safety stopper is configured to engage with a longitudinal notch 54 formed on the longitudinal side of the safety stopper 2'.

21 The lowermost stopper rod 32' has a spring-biased sphere 48 on its top surface near its free end, and when the sphere 48 returns to the groove 30' of the first stopper plate 10, the sphere in the groove 30' This groove 3 engages with a seat 50 formed at a position above 48 and is fitted into the groove 30' of the second stopper plate 12.
21. The safety stopper according to claim 19 or 20, characterized in that the safety stopper is configured to engage with a longitudinal groove 62 formed at a position above the sphere 48 at 0'.

22. Any one of claims 1 to 21, characterized in that each stopper plate 10, 12 has a vertically and horizontally movable mounting member on its back side for mounting on a machine tool. Safety stopper as described in .

23 A guide notch 42 is formed on the back side of each stopper plate 10, 12, and it is a horizontally movable circle that can freely rotate around the central axis as it moves horizontally, and has a threaded bolt 102 etc. protruding eccentrically. Board 4
23. The safety stopper according to claim 22, characterized in that a portion 6 of the safety stopper engages with the notch 42.

Description: The present invention provides first and second stopper plates which are located on both sides of a tool and are located in a common plane, leaving a gap between them for the tool to pass through, and which are fitted into grooves of the stopper plate and are fitted into the grooves of the stopper plates to form a gap between the first and second stopper plates. In addition to preventing injuries to workers' fingers due to rotation in woodworking machines, especially rotating machines such as wood milling machines, which include stopper rods parallel to each other and covering in a bridge shape,
It relates to a safety stopper whose purpose is to provide a safety stopper that serves as a guide plate for the workpiece material.

In the conventional safety stopper, the stopper plate is provided on the plate of the woodworking machine body, and both stopper plates must be attached by adjusting the vertical distance depending on the size of the milling machine used. Conventionally, it has been necessary to use a hex wrench to tighten a screw provided on a rod for attaching a stopper plate into a fitting slit in the stopper plate.

A disadvantage of this known arrangement is that it is often necessary to provide several stopper rods of different heights, which the operator then has to remove from storage as necessary. Not only is this method time consuming and cumbersome, but it also discourages the use of stopper rods altogether in the first place to avoid assembly effort. Moreover, tools are required to install the stopper rod. Also,
Since the individual rods are prepared separately, it is easy to lose them.

A safety stopper is known from German Patent Application No. 1031954, in which a plurality of stopper rods are provided in bulk and must be inserted into grooves in the stopper plate as required.
For insertion, both stopper plates must be separated from each other. When the two stopper plates are then drawn together, the beveled end of the stopper rod must be inserted behind the beveled end of the cover part that partially overlaps the groove.

This known stop therefore also has the same disadvantages, in that the rod is provided in bulk and is easily lost or requires a lot of time to install. Moreover, since the width of the gap is determined by the length of the stopper rod, the width of the gap between the two stopper plates for passing the tool cannot be changed.

The object of the present invention is to make it possible to use a functional unit consisting of parts that cannot be lost, and to quickly attach it to the required position according to the processing dimensions of the material to be processed. The goal is to improve the stopper.

The present invention achieves this objective by attaching the stopper rod to the first stopper plate in such a way that it cannot be lost, and from the groove of this stopper plate to the second stopper rod.
This is achieved by making it possible to insert it into the groove of the stopper plate.

An important advantage of this solution is that the stopper rod is in fixed communication with one of the two stopper plates, so that the required stopper rod can be pivoted out of the groove of this first stopper plate and the second stopper rod can be pivoted out of the groove of this first stopper plate. Pivotally fit into the groove of the plate, or
Conversely, it is only necessary to pivot it into the groove of the first stopper plate and pivot it out of the groove of the second stopper plate. In this case, the operator must first pivot all the stopper rods off one stopper plate and visually check in front of the tool to determine which stopper rods are needed and which stopper rods should be pivoted back to their original positions. It becomes possible to determine.

Further, since the width of the gap between the first stopper plate and the second stopper plate, the height of the first stopper plate, and the height of the second stopper plate can be easily changed, the stopper plate can be easily changed. It becomes possible to set the paper plate at a required position according to the processing dimensions of the material to be processed.

In another embodiment of the invention, the depth of the grooves in both stopper plates is greater than the height of the stopper rod, thereby providing a spacing between the rod and the bottom of the groove. Moreover, it is preferable to provide a groove bottom curved in an arc shape toward the stop plane at the end of each groove remote from the tool.

Due to the spacing between the stopper rod and the groove bottom, foreign objects, such as shavings, which have entered the groove will not prevent the stopper rod from completely entering the groove. Since the stopper rod does not protrude from the groove of the first stopper plate or the groove of the second stopper plate, a smooth guide surface is obtained on both stopper plates, which is not interrupted by projections.

The bottom of the groove curves in an arc toward the stop plane, making it easy to clean the groove by blowing away wood chips, etc.
Unlike the safety stopper disclosed in No. 1031954, wood chips do not remain in gaps such as undercuts.

In order to facilitate the pivoting of the stopper rods out of the grooves of the first stopper plate, it is preferable to provide a device for pivoting the stopper rods out of the grooves, which device is preferably pivotable in the respective grooves. Use execution cam.

If you forget to return the execution cam to its initial position when pivoting the stopper rod back into its corresponding groove, all execution cams should be Execution on the rotating rod.
A return spring may be provided to pivot the cam away from the groove, and the return spring may cause the cam to pivot away from the groove. That is, even if the operator forgets to return the ejection cam to the initial position when returning the stopper rod, the return spring will return it to the initial position and the stopper rod will not be able to fit into the groove of the first stopper plate. It may be possible to prevent this from happening. Furthermore, it is preferred that the rotary rod is mounted so as to be operable from the outside.

In known safety stoppers, the length of the stopper rod determines the opening width of the gap for passing the tool. Therefore, since this gap cannot be narrowed, the stopper plate cannot be brought close to the tool in order to prevent the workpiece from slipping off.

The present invention overcomes this drawback by making the stopper plates movable relative to each other so that the gap and opening width can be adjusted as required. To ensure that the stopper rod fits into the groove of the stopper plate, a longitudinal groove is formed on either the upper or lower surface of the stopper rod. A locking element then pivots the stopper rod into a corresponding groove in the second stopper plate to engage said longitudinal groove. Since this locking element engages in one longitudinal groove, the seating position of the stopper rod in the groove of the second stopper plate can be varied and thus a relative movement of the two stopper plates is possible. .

Preferably, the locking element is a spring-loaded ball that fits into the groove. If the sphere on the second stopper plate side is provided at the tool side end of the groove, each stopper rod can be held in the groove of the second stopper plate even if the gap between both stopper plates is maximized. can.

Since the height of the stopper rod can be kept extremely low, it is possible to cover almost all operating conditions related to the milling machine used. However, depending on the height of the milling cutter and the processing position, even a stopper rod with a small structural height may protrude from the working area of the milling cutter. To solve this problem, each stopper plate is provided with an insert whose height can be continuously adjusted, and a groove is formed in this insert. In this way, the stopper rod can be placed at an intermediate height if desired.

The fitting body is attached so that it can be removed from the stopper plate toward the front, that is, from the stopper plate toward the operation side, if necessary. Related means are described in claims 13 to 16.

In order to be able to adjust the height of both fitting bodies equally, each fitting body is provided with a scale for adjusting while reading the amount of movement.

In order to limit the effectiveness of both inserts, a limit stop is provided to prevent the lower edge of the insert from lowering below the lower edge of the stopper plate.

If extremely thin workpieces have to be machined, i.e. when very deep milling positions are required, the thickness is applied to the top surface of the lowest stopper rod of the upright stopper plate over most of its length. It is preferable to provide a notch to make it thinner.

Since the lowermost stopper rods fit into downwardly opening grooves in each stopper plate, special locking means are required to hold the stopper rods in their respective positions. This locking means is the subject of claims 20 and 21.

For attachment to the respective woodworking machine, each stopper plate includes on its rear side a vertically and horizontally movable mounting member that can be aligned with various fastening means of the woodworking machine.

In this case, a guide notch is formed on the back surface of the stopper plate, and a horizontally movable disc that can rotate around the central axis as it moves horizontally, and that includes a threaded bolt that projects eccentrically, is attached to the stopper plate. Engage with the notch. The threaded bolt is for clamping the disc, and therefore the entire stopper plate, to the fixing means of the respective machine tool via a tightening screw grip or the like.

The present invention will be described below based on embodiments shown in the accompanying drawings.

In the accompanying drawings, Fig. 1 is a perspective view of a safety stopper according to the present invention, Fig. 2 is an enlarged perspective view showing the stopper rod in an exploded state, and Fig. 3 is an enlarged perspective view similar to Fig. 2 showing the lowest stopper rod. , Fig. 4 is a plan view showing the first stopper plate together with the removed fitting body, Fig. 5 is a rear view of the fitting body shown in Fig. 4, and Fig. 6 is a plan view showing the first stopper plate with the fitting body removed. A perspective view showing the stopper plate, Fig. 7 is a front view showing a partial cross section of the fitting body of the first stopper plate, and Fig. 8 shows the end of the lowest groove of the fitting body of the first stopper plate. A perspective view, Fig. 9 shows 2 of the fitting body of the second stopper plate.
FIG. 10 is a rear view of the first stopper plate; FIG. 11 is a sectional view of the first stopper plate taken along the − plane of FIG. 10; FIG. 12 is a perspective view of the present invention. FIG. 2 is an explanatory diagram in which such a safety stopper is applied when processing a thin material.

As shown in FIG. 1, a first stopper plate 10 and a second stopper plate 12 are located on both sides of a tool 14, such as a milling machine of a woodworking machine.
are mounted on the woodworking machine by means of fixing means, which will be described later, in such a way that they are positioned in a common plane and leave a gap 16 between them for the passage of the tool 14. Vertical clamping grooves 18 are formed in the ends of the upright stopper plates 10, 12 on the far side from each other, and a known general-purpose clamp, such as that disclosed in West German Utility Model Publication No. 8208234, is engaged in said grooves. By doing so, it is possible to attach auxiliary means as necessary.

As is clear from FIG. 1 and especially FIGS. 4 and 6, a notch 20 is formed in the stopper plate 10 (and also in the stopper plate 12) which opens toward the front face and into the gap 16, and is fitted into the notch 20. By fitting the insert 22, the front face 24 of the insert is flush with the front face 26 of the stopper plate. Therefore, there is no difference in level on the guide plane of the stopper plate. The front surface 24 of the fitting body and the front surface 26 of the stopper plate constitute a guide plate serving as a reference surface for the workpiece material.

Since the end faces 28 of both stopper plates 10, 12 that open when facing the tool 14 do not have a step due to the respective end faces of the fitting body 22, the gap can be maintained without separating both stopper plates 10, 12 more than necessary. Sufficient space is provided for the tool 14 located within 16.

In each fitting body 22, horizontal grooves 30 that open toward the front surface 24 and the gap 16 are formed at equal intervals in the vertical direction. The lowest groove 30' also opens downward.

A stopper rod 32 having a height equal to the depth of the groove 30 and a plane flush with the front surface 24 of the fitting body 22 is fitted into each groove 30 of the fitting body 22 of the first stopper plate 10, To prevent a difference in level from occurring on the guide plane of the stopper plate.
Stopper rod 32 is pivotally mounted adjacent gap 16 via a common shaft 34. This makes it possible to pivot individually from the groove 30 into the opposing groove 30 of the second stop plate 12 at the same height, as can be seen in particular from FIG. The individual pivoted stopper rods 32 thus bridge-like the gap 16 in which the tool 14 for machining the workpiece is exposed. In principle, the gap 16 except for the gap where the tool 14 protrudes
Sufficient number of stopper rods 3 to cover
2 must be pivoted into the groove 30 of the second stopper plate 12. Therefore, the gap 16 is closed to the stopper rod 3 except for the space where the tool 14 protrudes.
2, so that even if an operator accidentally slips his hand toward the tool 14 during machining, his hand will not touch the stopper rod 32 located directly above the tool 14. This prevents the worker from injuring his or her fingers due to the heat. That is, the stopper rod 32 also has the function of a safety stopper.

By setting the depth of the groove 30 of the fitting body 22 of the stopper plates 10, 12 to be slightly larger than the height of the stopper rod 32, a gap is created between the stopper rod 32 and the bottom of the groove in the vertical direction, Place the stopper rods 32 in each groove 3.
When inserting into the hole, even if there are foreign particles such as wood chips, this should not be prevented (Figure 4). In this way, the stopper rod 32 can be completely inserted into the groove 30, and a stopping surface without irregularities can be obtained at all times. In order to prevent the stopper rod 32 from being pushed to the bottom of the groove 30 beyond the above-mentioned distance, for example, a portion of a rotary rod 66, which will be described later, is used as a spacer element and projects into the groove 30 from the bottom surface of the groove by an amount equal to the above-mentioned distance.

As is clear from FIGS. 4, 8, and 9, the end of each groove 30 on the side opposite to the tool 14 has an arcuate groove bottom surface 36. With this configuration, foreign matter (dust, wood chips, shavings, etc.) can be removed by blowing air toward the arcuate groove bottom surface 36.
can be prevented from remaining in sharp corners,
The foreign matter can be easily removed from the groove 30.

In order to ensure that the stopper rod 32 is inserted into the groove 30, the lowermost stopper rod 3 shown in FIG.
Each stopper rod 32, with the exception of stopper rod 2', has a longitudinal groove 56 in its top surface, such that the stopper rod 32 has a corresponding groove 30 in the first or second stopper plate.
When the locking element is pivoted into the longitudinal groove 5
6. As shown in FIG.
This is the sphere 58 that is pushed into. The sphere 58 is housed in a bush 94 with a corresponding spring 60, which is pressed into the vertical through hole 96 of the insert 22.

In the first stopper plate 10, the sphere 58 is located near the end of the arc-shaped groove 30, and in the second stopper plate 12, the sphere 58 is located at the end of the groove 30 on the tool 14 side.

With this structure, even if the width of the gap 16 is changed depending on the usage conditions, it will not become difficult to fit the stopper rod 32 into the second stopper plate 12. Therefore, the opening width of the gap 16 can be adjusted to a minimum in order to prevent workpiece deviation during milling.

In order to fix the lowermost stopper rod 32' to the lowermost groove 30' which also opens downward, a spring-loaded sphere 48 is provided on the top surface near the free end of the stopper rod 32', and the first stopper plate 1
0, insert the groove 3 so that the sphere 48 is positioned above this sphere.
It engages with a seat 50 formed at 0'. In this case, in order to fix the height, a notch 54' running in the longitudinal direction of the rod is used to cause the end of the rod to engage with a rib-like protrusion 52' that projects horizontally from the bottom of the lowest groove 30'. The lowermost stopper rod 32' is connected to the lowermost groove 3 of the opposing second stopper plate 12.
0', this lowermost groove 3
A long rib-shaped protrusion 52 protruding from the bottom wall of the stopper rod 32' in the longitudinal direction engages with a notch 54 formed in the longitudinal direction on the opposite longitudinal side of the lowermost stopper rod 32'. 3
Fix the insertion height of 2'. With this structure, even if the width of the gap 16 is changed, the reliable fitting of the lowermost stopper rod 32' will not be affected.

The lowermost stopper rod 32' has a sphere 48 protruding from the top surface near its free end that engages with a longitudinal groove 62 formed in the lowermost groove 30' so as to be located above the sphere 48. 2 is fixed to the bottom groove 30' of the stopper rod 12. This longitudinal groove 62 also allows the two stopper rods 10, 12 to move relative to each other while the lowermost stopper rod 32' remains fitted in the groove 30' of the second stopper plate 12.

FIGS. 1 and 3 also show that the lowest stopper rod 32' has a top surface for most of its length;
It is shown that it includes a notch 64 that approximately halves its height. The operation of machining the workpiece 90 will be explained with reference to FIG. The workpiece 90, whose reference surface 91 is abutted against the front surface 26 of the first stopper plate 10, moves the tool 14 along the front surface 24 with the reference surface 91 abutted against the front surface 24 of the fitting body.
After being moved and processed by the tool 14, the workpiece 90 is moved with its reference surface 91 along the front surface 26 of the second stopper plate 12.

That is, according to the safety stopper according to the present invention, even while the tool 14 is machining the workpiece 90, it is possible to always hold the reference surface 91, and accurate machining is possible.

When machining the workpiece 90 with the rotating tool 14, the cutting edge portion 14' of the tool 14 must be higher than the height of the guide for machining. Therefore, in order to process a thin workpiece 90, it is necessary to make the thickness t of the lowermost guide 32' lower than the height of the cutting edge portion 14'.
Notch 6 of the bottom stopper rod 32'
By making the height of the surface of the notch 6 sufficiently low, the height of the notch 6 is lower than the machined surface 92 of the extremely flat workpiece 90.
4 can be at a low position, and therefore the cutting edge portion 14' of the tool 14 can be moved to a sufficiently low position.
This makes it possible to lower the height of the workpiece, making it possible to machine even extremely flat workpieces.

Gap 1 between the fitting body 22 of the stopper plate 10
A vertical rotary rod 66 is attached to the portion farthest from the rotary rod 6, and a rotary head 68 for manual operation is fixed to its protruding upper end. An ejection cam 70 in the form of a screw head is attached to the rotary rod 66 at the height of each groove 30, and when the rotary rod 66 rotates, the cam 70 protrudes into the groove 30 and is centered around the common shaft 34. Insert the stopper rod 32 corresponding to the groove 3.
Pivot away from 0. The eccentric ejection cam 70 is configured such that when the stopper rod 32 pivots out of the groove 30, it automatically disengages inwardly from the groove bottom wall again and does not prevent the stopper rod 32 from reentering the groove 30. The return spring 72 acts on the rotating rod 66 and the rotating head 68
When released, this return spring 72 rotates the rotating rod 66 to its initial position.

As is clear from FIGS. 4 and 5, as a seat for the rotary rod 66 in the insert 22, a guide protrudes from the back side of the insert 22 and engages with the guide groove 78 of the corresponding stopper plate 10, 12. A vertical hole 74 formed partially in block 76 is utilized. That is, an ejection is placed at the height of each groove 30.
A rotating rod 66 provided with a cam 70 is inserted into the vertical hole 74 from above, and the rotating rod 66 is rotated by rotating the manually operated rotating rod 68 against the urging direction of the return spring 72. and the ejection cam 70 is in the groove 30.
The stopper rod 32 protrudes from the groove 30 and pivots out of the groove 30.

Each fitting body 22 has a corresponding stopper plate 1
Its height can be adjusted continuously between 0 and 12. Therefore, the screws 82 protrude upward from the stopper plates 10, 12.
An adjusting screw 80 is provided that can be rotated while being screwed into a screw hole provided in the holder. At the lower end of the adjustment screw 80,
A head 8 is formed on the back side of the fitting body 22 and engages with a seat 86 that opens toward the stopper plate to move the fitting body 22 up and down when adjusting the height.
4 is installed.

Vertical guide notch 9 in stopper plate of seat 86
It is arranged above the guide column 90 that engages with the guide column 8. On both sides of the guide post 90, horizontal guide bars 38 protrude from the insert at a distance from the rear wall of the insert 22, and two guide latches 40 provided in guide recesses 98 of the stopper plate are provided. (Figures 4 to 6)

When adjusting the height of the fitting body 22, the fitting body 2
In order to prevent the guide column 90 from protruding downward from the stopper plates 10 and 12, a limit stop 88 is provided at the lower end of the guide notch 98, and when the guide column 90 reaches its lowest position, the lower end of the guide column 90 touches the limit stop 88. It is configured so that it comes into contact with the

By holding the fitting body 22 on each stopper plate as described above, the fitting body can be moved forward, that is, removed toward the operating side, if necessary.

A lock knight 100 for fixing each fitting body 22 to the adjusting screw 80 is provided so that the height of each fitting body 22 does not change arbitrarily.

It goes without saying that configurations other than the adjustment screw 80 described above for continuously adjusting the height of the fitting body 22 can be considered.

A scale 92 is provided on each fitting body 22 so that continuous height adjustment of both fitting bodies 22 is performed evenly on the first stopper plate 10 and the second stopper plate 12.

10 and 11 show a general method of attaching stopper plates 10, 12 to a woodworking machine.

On the back side of the stopper plate 10 (the same applies to the stopper plate 12), the stopper plate 1
A guide cutout 42 is formed extending in the longitudinal direction of 0 and having a circular rounded end. and the first
As is clear from FIG. 1, both upper and lower edges of the guide notch 42 are configured as undercuts that end at the left end of the guide notch 42 in FIG. The guide cutout 42 therefore widens towards the circular inlet 44 . A disk 46 can be inserted into this introduction port 44,
A disk 46' of a small diameter corresponding to the inner width of the guide recess 42 projects coaxially from this disk 46. By moving the discs 46, 46' from the introduction port 44 toward the opposite end of the guide notch 42 and at the same time freely rotating them around the central axis, any part of the disc 46, 46' in the notch 42 can be moved without falling out of the guide notch 42. can be adjusted to the desired position. A threaded bolt 102 whose height position can be changed by rotating the disk 46 projects eccentrically from the smaller disk 46'.

If such a mounting method is adopted, the mounting of the stopper plate on the machine tool can be adapted to the mounting means on the machine tool side by successively selecting the required vertical and horizontal positions.
For fixing, use a screw nut, etc. including a clamp screw grip (not shown), and attach it to screw bolt 1.
02, and securely clamp the stopper plate to the mounting means on the machine tool side.

In order to attach the protective cover of the tool 14, two vertical holes 1 are formed between the stopper plates 10 and 12 in the vicinity of the gap 16 for passing the tool 14 through.
04 is formed.

Instead of pivotably mounting the stopper rod 32 on the first stopper plate 10, it is also possible to guide the groove 30 in a longitudinally movable manner.

Metals can be considered as materials for the stopper plate, insert body, and stopper rod, but for example,
Very strong plastics such as GFK may also be used.