JP3047433U - Jig for processing key uneven grooves - Google Patents

Abstract

(57) [Problem] To provide a jig for copying an uneven groove corresponding to a tumbler arrangement number of a lock on a key blank of a key. A base 1 is provided with a projection 1a at the center of the bottom surface for mounting and setting on a keyway machining machine, and a relief groove 1b for a tool sword tip at the center of the upper surface. , 5, and 5 are made to project, and screw holes 1c, 1c are made. A positioning hole and a screw tightening hole corresponding to the positioning guide pin and the screw hole are formed in the two plates 2 and 3, and the plate is fitted into the positioning guide pin provided on the base table 1. After the screws 6 and 6 are tightened and fixed, the concave and convex grooves are formed in the plates 2 and 3 based on the tumbler sequence number of the lock.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a jig in which a concave and convex groove is processed based on a key tumbler array number, and for forming a key concave and convex groove for processing a key blank of a key based on the contour of the concave and convex groove of the jig. It is related to a jig.

[0002]

[Problems to be solved by conventional techniques and devices]

 When a key is lost or a new key is requested, the key processing industry has traditionally used the tumbler sequence number of the lock on which the tumbler is set by inserting the lost key. In general, a method of processing an uneven groove directly into a key blank of a key is generally performed.

[0003] However, the method of directly processing the concave and convex grooves on the key blank of the key based on the tumbler array number of the lock is processing to one place and requires precise processing accuracy. It requires processing time and a high degree of skill, and has drawbacks such as not being able to be repeated. In addition, there is a risk of processing failure due to misreading of the tumbler sequence number or an error in the processing operation, and the yield is easily reduced. In addition, it is difficult to finish smoothly due to a step at the connection of the unevenness of the groove. At present, it takes time.

[0004]

[Means for Solving the Problems]

 The present invention is intended to solve the above-mentioned problems, and instead of directly processing the key groove on the key blank, a jig having the groove formed based on the tumbler arrangement number of the lock is used. The present invention provides a jig for processing a key concave / convex groove for producing a key by manufacturing the key blank by copying the concave / convex groove based on the contour of the concave / convex groove of the jig. That is, the solution is as follows.

[0005] (1) It is composed of a base table which is mounted and set on a groove processing machine, and a plate which is removably positioned and fixed to the base table. The plate is positioned and fixed to the base table, and a tumbler array number of the lock is obtained. A jig for processing a key uneven groove characterized by forming a matching uneven groove. By using the jig, the key uneven groove can be formed in a short time without requiring advanced skills. The purpose is to enable processing to be repeated and to reduce processing failure to improve the yield.

(2) Positioning guide pins and screw holes are provided on both sides of the upper surface of the base table, and two plates are provided with positioning holes and screw tightening holes that match the positioning guide pins and screw holes. The plate is detachably positioned and fixed on both sides of the upper surface of the base table. The jig for processing a key concave and convex groove according to (1), wherein the plate is removed, and the irregularities formed on the plate are removed. It is intended to make it easy to finish the step at the connecting part smoothly and to reduce labor.

(3) In the above (2), the two plates are positioned and fixed in the longitudinal direction while maintaining a width interval substantially corresponding to a width of a groove previously provided in a key blank of the key, and The jig for processing a key concave / convex groove according to (1), wherein the width of the part is formed with a groove so that accurate concave / convex grooves can be formed on both sides based on the groove width of the key blank of the key. Things.

[0008] (4) A key projection and depression according to (1), wherein a projection for positioning and setting the key groove machining machine is formed in the center of the bottom surface of the base table, and a relief groove is formed on the upper surface. With the groove processing jig, the jig is accurately positioned and set on the key groove processing machine so that the concave and convex grooves can be processed, and the edge of the processing tool comes into contact with the upper surface of the base table and is cut. A relief groove is provided so as not to exist.

[0009]

[Embodiment of the invention]

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings showing one embodiment. As shown in FIG. 1, the present invention provides a base 1 mounted and set on a keyway machine, The plates 2 and 3 are positioned on guide pins 4, 4, 5 and 5 provided on both sides of the upper surface of the base table 1, and are fixed by screws 6 and 6. .

As shown in FIG. 2, the base 1 is provided with a protrusion 1a having a parallel width in the longitudinal direction at the center of the bottom surface, and the protrusion is formed in a table groove of a key groove processing machine (not shown). A relief groove 1b having a parallel width in the longitudinal direction is provided in the center of the upper surface so that the cutting edge of the tool does not hit when the plate fixed to the upper surface of the base 1 is machined. Then, the positioning guide pins 4, 4, 5, 5 on both sides of the upper surface are protruded, and the screw holes 1c, 1c are opened.

As shown in FIG. 3, the plates 2 and 3 are made of two rectangular metal plates substantially matching the groove width previously provided in the key blank of the key so as to maintain a parallel interval V. The inside of the portion is chamfered to provide groove portions 2a, 3a, and the positions are aligned with one of the positioning guide pins 4, 4, 5, 5 and the screw holes 1c, 1c provided on the pace table 1 in FIG. Drilling holes 2b, 2b, 3b, 3b and screw tightening fixing holes 2c, 3c are made.

The positioning holes 2b, 2b, 3b, 3b of the two plates 2, 3 machined as described above are fitted into the positioning guide pins 4, 4, 5, 5 of the base 1, and the plate The screws 6 and 6 are passed through the screw tightening holes 2c and 3c, and screwed into the screw holes 1c and 1c drilled in the base table 1 to be fixed.

The assembly assembled as described above is attached and set on a keyway machining machine (not shown), and the plates 2 and 3 fixed at a parallel interval V are fixed according to the arrangement number of the lock. The inside is processed to form the concave and convex grooves 2d and 3d as shown in FIG. The tumbler array number of the lock is determined by the key maker so as to be identified by the key number of the key inserted into the lock and set, and the processing dimensions of the concave and convex grooves of the key are determined by the tumbler array number. Because of this, it is possible to form a concave and convex groove of the key according to the key by the tumbler sequence number of the lock. Since the key number is generally engraved on the key or lock, even if the key is lost, the key number engraved on the lock gives the tumbler array number, but the key number is not engraved on the lock Breaks the key and reads the number engraved directly on the tumbler.

[0014] Even if the groove unevenness is machined by the keyway machining machine according to the tumbler arrangement number, it is difficult to finish smoothly due to a step formed at the joint between the recess and the protrusion. Is removed from the base 1 and smoothed out with a file or sandpaper to eliminate the steps, and attached to the base to fix it. Since the plates 2 and 3 are positioned and fixed by the positioning guide pins of the base 1, there is no positional deviation due to attachment and detachment, and the plates 2 and 3 are fixed to the base 1 while maintaining accurate dimensional positions.

Next, a case in which the key blank of the key is used to form the concave / convex grooves using the key concave / convex groove processing jig of the present invention will be described with reference to FIG. A description will be given based on an embodiment of the concave and convex groove processing of the key blank 7 in which a 0 mm groove is processed on both sides. The key groove processing jig of the present invention shown in FIG. 1 and the key of the key shown in FIG. The blank 7 is attached and set on a copying machine (not shown), and the key blank of the key is copied to the key blank 7 of the key as shown in FIG. First, the lower concave / convex groove 7a is processed, and then the upper concave / convex groove 7b is processed according to the contour of the concave / convex groove 3d of the plate 3. For the processing of the concave and convex grooves on the opposite surface, the key blank 7 of the key is turned upside down, attached and set on a copying machine, and processed in the same procedure as described above.

[0016]

[Effect of the invention]

 The present invention is a key uneven groove processing jig in which an uneven groove of a key is processed based on a tumbler arrangement number of a lock, and a step of a connecting portion of the unevenness is smoothly finished, and a contour of the uneven groove of the jig is formed. Since the concave and convex grooves are continuously processed on the key blank of the key, the concave and convex grooves are directly processed on the key blank of the key directly, based on the tumbler arrangement number of the lock, as in the past. Compared to processing the key's concave and convex grooves by hand finishing the step at the connecting part with a file, the processing time of the key's concave and convex grooves can be significantly shortened, and processing failure without skill is required. Since it can be processed accurately and without any problems, it has the effect of improving quality and yield.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a key uneven groove processing jig according to the present invention.

FIG. 2 is a perspective view of a base 1 of FIG.

FIG. 3 is a perspective view of the plates 2 and 3 of FIG. 1 before machining grooves.

FIG. 4 is a perspective view of a key blank of a key before a concave and convex groove processing.

FIG. 5 is a perspective view of the key blank of the key after the concave / convex groove processing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base stand 1a Protrusion part 1b Relief groove 1c Screw hole 2, 3 Plate 2a, 3a Groove part 2b, 3b Positioning hole 2c, 3c Screw tightening hole 4, 5 Positioning guide pin 6 Screw 7 Key blank 7a , 7b Uneven groove

[Procedure amendment]

[Submission date] June 20, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

[Utility model registration claims]

The method according to claim 3, wherein the two plates in the longitudinal direction, positioned and fixed by holding the width interval substantially coincides with the width of the previously provided grooves in the key blank of a key, to groove width spacing one end portion The jig for processing a key uneven groove according to claim 1, wherein ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 16, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

Claims (4)

[Utility model registration claims] 1. A base table which is mounted and set on a keyway processing machine, and a plate which is removably positioned and fixed to the base table. The plate is positioned and fixed on the base table to obtain a tumbler array number of the lock. A jig for processing a key concave / convex groove, wherein a matching concave / convex groove is formed. 2. A positioning guide pin and a screw hole are provided on both sides of an upper surface of a base table, and a positioning hole and a screw tightening hole corresponding to the positioning guide pin and the screw hole are provided on two plates. 2. The jig for processing a key uneven groove according to claim 1, wherein said plate is removably positioned and fixed on both sides of the upper surface of the table. 3. The method according to claim 2, wherein the two plates are positioned and fixed in the longitudinal direction while maintaining a width interval substantially corresponding to a width of a groove previously provided in a key blank of the key, and a width of one end portion. 2. The gap is formed with a groove.
The jig for processing the key uneven groove described in the above. 4. The key groove according to claim 1, wherein a projection is formed at the center of the bottom surface of the base for positioning and setting on the key groove processing machine, and a relief groove is formed on the upper surface. Jig for processing.