JPH031135Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a key vise that is installed on a slide board for attaching and fixing a key in a machine for duplicating duplicate keys.

(Prior Art) Conventionally, in this type of duplicate key duplicating machine, a cutting tool and a copying tool are arranged on a base at a predetermined distance.
A saddle that reciprocates with respect to the cutting tool and the copying tool, a slide board that reciprocates on the saddle in a direction perpendicular to the direction of movement of the saddle, and a slide board that is provided on the slide board to hold the workpiece and the master key, respectively. A device is known that is equipped with a pair of key vises that are held at the same distance as the cutting tool and the copying tool (see, for example, Japanese Utility Model Publication No. 58-52010). In many of the conventionally used keys, as shown in FIG. Concave and convex portions are formed on (one or both) of the end surfaces C.

Therefore, in conventional key vices, the key pressing surface of the pressing body that presses and fixes the key is also horizontal or vertical and parallel to the key receiving surface formed on the lower main body. is formed.

(Problem to be Solved by the Invention) Recently, as shown in Figs. Keys with complex shapes are now emerging, with chamfered slanted and uneven surfaces. However, the conventional duplicating machine described above cannot duplicate the keys shown in FIGS. 5 and 6. Therefore, the chamfering described above must be performed using a separate special machine or manually.
There were problems in that it required skill and took a considerable amount of time.

In view of the above-mentioned circumstances, the present invention aims to provide a key vise that can solve the above-mentioned problems by improving the key vise installed in the conventional duplicate key duplicating machine.

(Means for Solving the Problems) The present invention is characterized in that a cutting tool 2 and a copying tool 3 are arranged on a base 1 with a predetermined distance between them. A saddle 13 that reciprocates against the saddle 13, a slide plate 16 that reciprocates in a direction perpendicular to the direction of movement of the saddle 13,
Key vices 18 and 1 are arranged opposite to the cutting tool 2 and the copying tool 3 and arranged on the slide board 16 at the same distance as the separation distance between the cutting tool 2 and the copying tool 3.
9, and each key vise 18, 19 has a pair of clamping bodies 21, 22 that are relatively movable forward and backward;
It has a tightening tool 23 for releasably tightening both the clamping bodies 21 and 22, and of the clamping bodies 21 and 22 of each key vise 18 and 19, the lower clamping body 21 has a generally convex shape in side view. The front and rear surfaces of the protrusion 25 at the center of the upper side of the grip are used as guide surfaces 28, 28, and the upper grip body 2
2 has a generally concave shape when viewed from the side, and inner facing walls 34, 34 of the concave portion are guided by the guide surfaces 28, 28 and are mounted on the lower clamping body 21, and both clamping bodies 2
Between the clamping surfaces 30 and 36 of 1 and 22, the workpiece 27
and a master key 26 are releasably tightened and fixed, respectively, and the lower side of the lower clamping body 21 on the front guide surface 28 side is cut out in a substantially V-shape in side view, and the guide surface 2
An inclined bottom surface 30a extending outward and downward from the lower end of the inclined bottom surface 30a, and a clamping surface 30 extending outward and upward from the lower end of the inclined bottom surface 30a are formed, and the clamping surface 30 of the upper clamping body 22 is formed. The surface 36 is at a point formed parallel to the inclined lower clamping surface 30.

(Function) The main body part B of the key is connected to the key receiving surface 30 and the pressing surface 3.
When the plate surface 2 is inserted between 6 so as to be in contact with these and fixed with the fastener 23, the inclined uneven surface of the key becomes vertical or horizontal, and the inclined uneven surface machined by the cutting tool 2 is removed. Surfaces can be vertical or horizontal.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 2 is a side view showing an example of a duplicate key duplicating machine.
1 is a base, 2 is a cutting tool, and 3 is a copying tool. The cutting tool 2 and the copying tool 3 are installed on the base 1 at a predetermined distance, and the cutting tool 2 is connected to the base 1 through a rotating shaft 4 and a bearing stand 5. It is attached to base 1. A belt pulley 6 is wedged to the end of the rotating shaft 4, and power is transmitted from the belt pulley 9 at the end of the output shaft 8 of the motor 7 with a reducer fixed on the base 1 to the rotating shaft 4 via the transmission belt 10. be done. 11 is a cover of the cutting tool 2, 1
2 is a cover leg.

Reference numeral 13 denotes a saddle, which is provided on the base 1 via a sliding guide rod 14 parallel to the rotating shaft 4 so as to be able to freely reciprocate in parallel with the rotating shaft 4, and is operated by an operating handle 15.

16 is a slide board, with saddle 1 on top of saddle 13.
The cutting tool 2 and the copying tool 3 can be moved toward and away from each other by rotating a rotary knob 17.

Reference numerals 18 and 19 designate a pair of key vises, which have the same structure, shape, and dimensions, and which are placed on the slide plate 16 at the same distance as the cutting tool 2 and the copying tool 3. 3, and are detachably attached to each other. In addition,
A vice setting groove 20 parallel to the rotating shaft 4 is provided on the upper surface of the slide board 16.

As shown in FIGS. 2 to 4, each key vise 18, 19 includes a pair of upper and lower clamping bodies 21, 22 that are relatively movable forward and backward, and both clamping bodies 21, 22.
A fastener (for example, a tightening bolt with a handle) 23 that tightens and fixes both of the two to the slide board 16, and a spring 24 that always urges one of the clamping bodies 22 upward.
It is equipped with.

The lower clamping body 21 has a substantially convex shape when viewed from the side, and has a rectangular planar shape, with a projection 25 at the upper center.
The vertical walls at the front and rear (referring to the side where the master key 26 or the workpiece 27 is clamped and fixed; in FIGS. 1 to 3, the right side is referred to as the front) are the guide surfaces 28, and the lower end of the rear guide surface 28 The clamping surface 29 extending outwardly from the base is horizontal. Further, the lower side of the front guide surface 28 of the clamping body 21 is cut out in a substantially V-shape when viewed from the side to form a clamping surface 30 and an inclined bottom surface 30a.
That is, the inclined bottom surface 30a is formed to extend outward (forward) and downward from the lower end of the front guide surface 28, and is an inclined surface with a depression angle of 45 degrees, and the clamping surface 30 extends outward and downward from the lower end of the inclined bottom surface 30a. It extends upward and is an inclined surface with an elevation angle of 45 degrees. and,
A through hole 31 for the fastener 23 is provided in the center of the clamping body 21.
As shown in FIG. A strip 33 is provided parallel to the guide surface 28 in the left-right direction.

The upper clamping body 22 has an approximately inverted concave shape when viewed from the side, and has a rectangular planar shape, and is mounted so that the inner facing wall 34 of the recessed portion is guided by the guide surface 28 of the clamping body 21 and moves up and down. , among the lower surfaces of the front and rear outer sides of the recess, the rear side is horizontal and the clamping surface 2 of the clamping body 21 is
A clamping surface 35 parallel to the clamping surface 30 is provided on the front side, and a clamping surface 36 parallel to the clamping surface 30 is formed on the front side with an inclined surface having an elevation angle of 45 degrees. In the center of the clamping body 22,
Through hole 2 of fastener 23 corresponding to through hole 31
7 is provided. Further, the upper end of the spring 24 is brought into contact with the upper surface 38 inside the concave portion of the clamping body 22 and is always urged upward, so that when the fastener 23 is loosened, the clamping body 22 is pushed up and lowered. The distance between the side clamping surfaces 29, 30 and the upper clamping surfaces 35, 36 widens immediately.

A male threaded portion 39 is provided at the lower end of the fastener 23, and is screwed into a threaded hole 40 provided in the stationary groove 20 of the slide board 16.

According to the above embodiment of the present invention, when duplicating a duplicate key of the key shown in FIG.
The cutting tool 2 and the copying tool 3 face each other on the front side, and between the respective clamping surfaces 30 and 36 of the key vise 18 on the cutting tool 2 side and the key vise 19 on the copying tool 3 side,
Insert the workpiece 27 and the master key 26 so that the longitudinal direction of the key is parallel to the rotating shaft 4, screw the fastener 23 into the screw hole 40 of the slide board 16, and then tighten the workpiece 27 and the master key. 26 to each key vise 18, 19, and
8 and 19 are fixed to the slide board 16. Then,
After starting the motor 7 with a speed reducer to rotate the cutting tool 2 and operating the rotation knob 17 to bring the uneven surface of the master key 26 into contact with the copying tool 3, rotate the operation handle 15 to remove the saddle 13. By moving parallel to the rotating shaft 4, the master key 26 is aligned, and an uneven surface having the same shape and size as the uneven surface of the master key 26 is formed on the workpiece 27. In this way, when the shaping into one uneven surface is completed, loosening the fasteners 23 of both key vises 18 and 19 causes the clamping body 22 to be pushed up by the spring 24 and the gap between the clamping surfaces 30 and 36 is widened. ,
The master key 26 is reversed and inserted between the clamping surfaces 30 and 36 of the key vise 19 so that the uneven surface on the opposite side to the already cut uneven surface is perpendicular, and then tightened with the fastener 23. On the other hand, the workpiece 27 is also inverted corresponding to the uneven surface of the master key 26, and the cutting tool is inserted between the clamping surfaces 30 and 36 of the key vise 18 so that it is horizontal, and the tightening tool 2
Tighten by 3. Rotate the cutting tool 2 again,
After the uneven surface of the master key 26 is brought into contact with the copying tool 3, the operation handle 15 is rotated to form an uneven surface on the workpiece 27 in the same manner as described above.

When the forming of the uneven surfaces on one side and the second side is completed in the above manner, the workpiece 27 is attached to the key vises 18 and 19 together with the master key 26 and in correspondence with the master key 26 in the above order. , three sides, and four sides are molded in the same manner as the first and second sides, and a duplicate key having an inclined uneven surface can be easily reproduced by machine.

Note that when duplicating a key as illustrated in FIG. 7, the key vises 18 and 19 shown in FIG. The workpiece 27 can be cut using the same procedure.

Further, the key vise according to the present invention can of course be used by being attached to the slide board of a duplicate key duplicating machine equipped with a cutting tool having a vertical axis.

Furthermore, in the present invention, the clamping bodies 21 and 22 may be placed horizontally on the slide board 16 so that the fastener 23 shown in FIG. 1 is horizontal.

(Effect of the invention) As mentioned above, the key vice according to the invention is as follows:
Since the clamping surfaces 30 and 36 of the pair of clamping bodies 21 and 22 are inclined so as to be parallel to each other, it is possible to hold a duplicate key of a complex key with an inclined uneven surface chamfered at a predetermined angle of inclination. It is possible to reproduce accurately, quickly, and at low cost without the need for a dedicated machine.

Furthermore, in order to form the clamping surface 30 in an inclined shape below the guide surface 28 of the lower clamping body 21, the lower side of the guide surface 28 is notched in a substantially V-shape when viewed from the side.
Since the guide surface 28 is formed through an inclined bottom surface 30a extending outward and downward from the lower end, the workpiece 27 is
Alternatively, when the master key 26 is clamped, the internal stress on the lower side of the clamping surface 30 that occurs as a reaction force to the clamping pressure is absorbed and dispersed in the direction of inclination of the inclined bottom surface 30a. Therefore, stress concentration at the lower end of the clamping surface 30 is effectively avoided, and the lower clamping body 21 and the key vices 18, 1 are protected against repeated stress.
9 durability is improved. Moreover, this inclined bottom surface 30
Due to the presence of the key a, the space surrounding the gripping surfaces 30, 36 and the bottom surface 30a to accommodate the key becomes a rectangular groove with a bottom when viewed from the side. Even if it gets into the space, it can be easily removed and maintenance is easy.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a cross-sectional view of the main parts, Figure 2 being a schematic side view showing an example of a duplicate key duplicating machine equipped with the key vise of the present invention, and Figure 3 The figure is a partially omitted perspective view, FIG. 4 is a sectional view taken along the line A-A in FIG. 1, FIG. 5 is a perspective view showing an example of a key, and FIG. Figure, 7th
The figure is a perspective view showing another example of the key. 1... Base, 2... Cutting tool, 3... Copying tool,
13...saddle, 16...slide board, 18,1
9... Key vise, 21, 22... Clamping body, 23
... Fastener, 24 ... Spring, 25 ... Protrusion, 26 ... Master key, 27 ... Workpiece,
28... Guide surface, 30, 36... Clamping surface, 30a
... Sloped bottom surface, 34 ... Concave inner facing surface.

Claims (1)

[Claims for Utility Model Registration] A cutting tool 2 and a copying tool 3 are arranged on a base 1 at a predetermined distance, and a saddle 13 that reciprocates with respect to the cutting tool 2 and the copying tool 3; A slide plate 16 that reciprocates in a direction perpendicular to the direction of movement of the slide plate 13 is disposed on the slide plate 13, and a cutting tool 2 and a copying tool 3 are arranged opposite to each other.
and key vices 18 and 19 disposed at the same distance from each other, each key vice 18,
19 has a pair of clamping bodies 21 and 22 that are relatively movable forward and backward, and a tightening tool 23 that releasably tightens both clamping bodies 21 and 22, and each key vise 1
Of the two clamping bodies 21 and 22 of 8 and 19, the lower clamping body 21 has a generally convex shape in side view, and the front and rear of the protrusion 25 located at the center of its upper side serve as guide surfaces 28, 28, and the upper clamping body 21 has a substantially convex shape when viewed from the side. The body 22 has a generally concave shape in side view,
The inner facing walls 34, 34 of the recess are the guide surface 2.
8, 28 and is mounted on the lower clamping body 21, and the clamping surfaces 30, 3 of both clamping bodies 21, 22
Between 6 and 6, the workpiece 27 and the master key 26 are
In the case where the lower clamping body 21 is releasably tightened and fixed, the lower side of the front guide surface 28 side of the lower clamping body 21 is cut out in a substantially V-shape in side view, and the guide surface 2
An inclined bottom surface 30a extending outward and downward from the lower end of the inclined bottom surface 30a, and a clamping surface 30 extending outward and upward from the lower end of the inclined bottom surface 30a are formed, and the clamping surface 30 of the upper clamping body 22 is formed. A key vise for a duplicate key duplicating machine, characterized in that the surface 36 is formed parallel to the inclined lower clamping surface 30.