JPH0532637U - Cylinder locker tumbler - Google Patents

Abstract

(57) [Summary] [Purpose] By using one tumbler and changing the tumbler with the key inserted in the rotor,
By making it possible to determine the key type, the number of assembly steps and the number of parts are reduced. [Structure] In a rectangular window of a tumbler (3), which has a concave portion (5) in the center of an outer portion and has a rectangular window (4) in the central portion,
Both sides of a displacement plate (6) having a key hole (7) having a protrusion (8) on the center inner surface are press-fitted so as to be displaceable, and a side groove (a side groove (11) is formed at a position orthogonal to the tumbler groove (11) of the rotor (10). 12) is provided, and a side bar (15) having a convex portion (14) that fits into the concave portion of the tumbler at the rear end is provided in this side groove by always biasing outward through a spring (16). A tumbler for a cylinder lock in which the positional relationship between the displacement plate and the tumbler is displacement-adjusted so that the rear end protrusion (14) of the side bar (15) can be fitted into the recess (5) on the outer side of the tumbler.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a tumbler for a cylinder lock having a novel structure.

[0002]

[Prior Art]

 Conventionally, cylinder lock tumblers were manufactured only in the set amount depending on the key type, and at the time of assembly, the tumbler suitable for the key was selected and incorporated into the rotor via a spring.

[0003]

[Problems to be solved by the device]

 However, the conventional method of reading the key type and selecting a tumbler suitable for it requires a lot of man-hours, and there is an automatic assembly machine that automatically performs this work, but the shape of the tumbler etc. There were many restrictions, and it was not usable for various tumbler assembling, and it was expensive.

[0004]

[Means for Solving the Problems]

 The present invention has one type of tumbler, and the key type can be determined by moving the tumbler with the key inserted in the rotor. That is, according to the present invention, a tumbler (3) having a recess (5) in the center of the outer side and a square window (4) in the center has a protrusion (8) on the inner surface of the center. Both sides of a displacement plate (6) having a key hole (7) are press-fitted so as to be movable, and a side groove (12) is provided at a position orthogonal to the tumbler groove (11) of the rotor (10). In addition, a side bar (15) having a circular arc portion (13) at the tip and a convex portion (14) that fits into the concave portion (5) of the tumbler at the rear end is always kept outward via a spring (16). A circular arc groove (18) is provided which is biased and which is fitted to the side groove (12) on the inner circumference of the cylinder (17) so that the circular arc portion (13) at the tip of the sidebar is fitted shallowly. The concave portion (5) on the outer side is provided with the rear end convex portion (1) of the side bar (15). ) As get fit, positional relationship between the transition plate (6) and tumbler (3) is a tumbler cylinder lock, characterized in that the transition adjustment.

[0005]

【Example】

 A tumbler according to the present invention will be described below with reference to the drawings. 3 (1) is a key used in the present invention, which has a corrugated key groove (2) in the abdomen. (3) is a disk-shaped tumbler having a rectangular window (4) at the center and a recess (5) at the center of both sides. (6) is a rectangular frame-shaped displacement plate, both sides of which are press-fitted into the rectangular window (4) at the center of the tumbler, and can be displaced back and forth (right and left in the figure) in the rectangular window (4). It is a thing. A key hole (7) having a length larger than the width dimension of the key (1) and having a width into which the key can be inserted is provided at the center of the displacement plate (6), and the key hole is provided inside the key hole. Protrusions (8) that fit in the grooves (2) are provided.

[0006] Fig. 2 (10) shows a rotor, in which a plurality of tumbler grooves (11) are provided in multiple stages like the conventional product, and a side groove (12) is arranged at a position orthogonal to the tumbler groove along the axis of the rotor. A side bar (15) having an arcuate portion (13) at the tip and a protrusion (14) that fits into the recess (5) of the tumbler is provided at the rear end of the side groove. , So that it is always biased outward through the spring (16).

That is, the side bar (15) is a long one that fits in the long side groove (12) provided along the axis of the rotor, and as shown in FIG. When the rear end of the rear end contacts the side surface of the tumbler (3), the arcuate portion (13) at the tip thereof is dimensioned to slightly project from the outer peripheral surface of the rotor (10). However, the inner peripheral surface of the cylinder (17) located on the outer periphery of the rotor is designed to fit shallowly into the circular arc groove (18) provided corresponding to the side groove (12) of the rotor.

Next, a procedure for creating a key type according to the present invention will be described. First, as shown in FIG. 2, the tumbler (3) in which both side surfaces of the displacement plate (6) are press-fitted into the rectangular window (4) at the center as shown in FIG. Insert the key (1) into the key hole (7) from the top of the rotor. At this time, the protrusion (8) provided in the key hole (7) of the displacement plate (6) fits into the key groove (2), and the displacement plate and the tumbler both move along the corrugated key groove according to the insertion of the key. While swinging back and forth (right and left in the figure), stop in the state of Fig. 2 where the key has been inserted to the specified position.

In the state of FIG. 2, one end of the tumbler (3) projects outward from the rotor (10), so pressure is applied from the outside to push the tumbler (3) to the center of the rotor as shown in FIG. .. At this time, since the displacement plate (6) is prevented from moving by the engagement of the key groove (2) and the protrusion (8), only the tumbler (3) is displaced against the press-fitting pressure with the displacement plate. The amount of this displacement is actually about 1 to 1.5 mm, and since the press-fitting pressure between the tumbler (3) and the displacement plate (6) does not change even after the displacement, both are integrated when the key is inserted. Will be moved.

That is, in the state of FIG. 1, the concave portion (5) at the center of both sides of the tumbler and the rear end convex portion (14) of the side bar (15) provided in the side groove (12) of the rotor (10) are separated. It becomes a positional relationship that can be fitted. To determine the key type by the above-mentioned tumbler displacement, insert multiple tumblers with displacement plates pressed into all tumbler grooves (11) of the rotor, insert the keys, and then pull all the tumblers together from the outside. It can be done all at once by pressing and positioning it in the center of the rotor.

[0011]

[Action]

 When the key (1) having the predetermined corrugated groove (2) is inserted into the cylinder lock of the present invention, the protrusions (8) of each displacement plate (6) are swung right and left along the key groove (2). When the key is inserted to the specified position, each tumbler is located at the center of the tumbler groove (11) as shown in FIG. , The position matching the rear end convex portion (14) of the side bar (15) provided in the side groove (12) of the rotor (10).

When the key is rotated in this state, the arcuate portion (13) at the tip of the sidebar (15), which was shallowly fitted in the arcuate groove (18) of the cylinder (17), is pushed toward the center along with the rotation of the rotor. The convex portion (14) at the rear end is fitted into the concave portion (5) of the tumbler, so that the rotor (10) can be rotated.

On the other hand, when a dissimilar key is inserted into the key hole, since the concave portion (5) of the tumbler and the rear end convex portion (14) of the side bar do not coincide with each other, the tip portion of the side bar (15) is a rotor ( It is impossible to immerse into 10) and it is impossible to rotate the rotor.

[0014]

[Effect of the device]

 In the present invention, the key types can be easily set by aligning the tumblers during the assembly process of the cylinder lock, so that the man-hours can be reduced and the cost can be reduced. Further, since only one type of tumbler needs to be manufactured, the number of parts to be managed can be reduced, and the key groove can be formed into a free curve, which makes it difficult to copy the key.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the rotor showing the positions of the rotor, the tumbler, and the keys after the key type is determined.

FIG. 2 is a cross-sectional view of the rotor showing the positions of the rotor, the tumbler, and the keys before determining the key type.

FIG. 3 is a perspective view of a tumbler and a key into which the displacement plate of the present invention is press fitted.

[Explanation of symbols]

1 key 2 key groove 3 tumbler 4 square window 5 recess 6 displacement plate 7 key hole 8 protrusion 10 rotor 11 tumbler groove 12 side groove 13 arcuate portion 14 convex portion 15 sidebar 16 spring 17 cylinder 18 arcuate groove

Claims (1)

[Scope of utility model registration request] 1. A key having a protrusion (8) on the inner surface of the center of a rectangular window (4) of a tumbler (3) having a recess (5) in the center of the outer part and a rectangular window (4) in the center. Both sides of the displacement plate (6) having the hole (7) are press-fitted so as to be movable, and the tumbler groove (11) of the rotor (10) is inserted.
The side bar (15) is provided with a side groove (12) at a position orthogonal to the side groove, and the side groove (15) has a circular arc portion (13) at the tip and a convex portion (14) at the rear end that fits into the concave portion (5) of the tumbler. ) Is provided by always urging outward through a spring (16), and the arc portion (13) at the tip of the side bar is shallowly fitted at a position corresponding to the side groove (12) on the inner circumference of the cylinder (17). The groove (18) is provided, and the displacement plate (6) and the tumbler (3) are positioned so that the rear end protrusion (14) of the side bar (15) can be fitted into the recess (5) on the outer side of the tumbler when the key is inserted. Cylinder lock tumbler with relationship adjusted.