JPH0662151U - Connection structure of rotor and rotor front cover in cylinder lock - Google Patents

Abstract

(57) [Summary] [Object] To provide a coupling structure capable of easily and accurately aligning the key insertion holes of the rotor body and the rotor front cover with each other to couple them. [Structure] A rotation stop projection 6 and a tongue piece 8 are provided on a peripheral edge 7 of a rotor front cover 5, a rotation stop recess 2 is provided on a front end flange 3 of a rotor body 1, and the rotor front cover 7 and the rotor body 1 are die-cast. And the recess 2 for stopping rotation is formed by
The rotation stop projection 6 is engaged with the rotor front cover 5, and the tongue piece 8 on the peripheral edge 7 of the rotor front cover 5 is bent, and the front end flange portion 3 of the rotor body 1 is bent.
Stick to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coupling structure of a rotor and a rotor front cover in a cylinder lock.

[0002]

[Prior art]

 Conventionally, in a cylinder lock, the rotor and the rotor front cover are coupled to each other by covering the front end flange portion of the rotor with a short cylindrical cover manufactured by press working and pressing the peripheral edge of the cover to attach the rotor front end flange portion. It was fixed by bending the back side.

However, in coupling the rotor and the rotor front cover in the cylinder lock, it is necessary to match the directions of the key insertion holes in the rotor body and the cover, and in the conventional method, a positioning jig is used. Therefore, the positions of both sides had to be defined, and the positioning work was extremely difficult.

[0004]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to provide a coupling structure for a rotor and a rotor front cover in a cylinder lock, which allows the rotor body and the rotor front cover to be easily and accurately aligned with each other so that they can be coupled together. That is.

[0005]

[Means for Solving the Problems]

 Hereinafter, referring to the reference numerals in the accompanying drawings, in the coupling structure of the present invention, the rotor front cover 5 and the rotor body 1 are formed by die casting, and the rotation stopping projections are formed on the peripheral edge 7 of the rotor front cover 5. 6 and a tongue piece 8 are provided, the front end flange 3 of the rotor body 1 is provided with a rotation stopping recess 2, the rotation stopping recess 2 is engaged with the rotation stopping projection 6, and the peripheral edge 7 of the rotor front cover 5 is provided. The tongue piece 8 is bent and fixed to the front end flange portion 3 of the rotor body 1.

[0006]

[Action]

 By engaging the anti-rotation projections 6 on the peripheral edge 7 of the rotor front cover 5 with the anti-rotation recesses 2 of the front end flange 3 of the rotor body 1, the key insertion holes 4, 9 of the rotor body 1 and the cover 5 are inserted. When the tongue pieces 8 on the peripheral edge 7 of the rotor front cover 5 are bent and fixed to the front end flange portion 3 of the rotor body 1, the rotor body 1 and the rotor front cover 5 are connected.

[0007]

【Example】

 1 to 9 show an embodiment of the present invention. As shown in FIGS. 1 to 3, rotation preventing protrusions 6 are provided at four positions on the peripheral edge 7 of the rotor front cover 5 every 90 degrees. Four tongue pieces 8 are provided between the rotation stopping projections 6 and 6 on the peripheral edge 7 of the rotor front cover 5.

On the other hand, as shown in FIGS. 4 to 6, the front end flange portion 3 of the rotor body 1 is provided with four rotation stopping recessed portions 2 every 90 degrees.

The rotation stop projection 6 of the rotor front cover 5 and the rotation stop recess 2 of the rotor body 1 are formed in the key insertion holes 9 and 4 of the rotor front cover 5 and the rotor body 1 when they are engaged with each other. It is provided at a position where the directions match and is molded by die casting.

As shown in FIGS. 7 and 8, the rotor 1 and the rotor front cover 5 are coupled to each other by engaging the rotation stopping recess 6 of the rotor body 1 with the rotation stopping projection 6 of the rotor front cover 5. Then, the two key insertion holes 4 and 9 are aligned in the same direction, and the tongue piece 8 on the peripheral edge 7 of the rotor front cover 5 is bent and fixed to the front end flange portion 3 of the rotor body 1.

[0011]

[Effect of device]

 As described above, in the coupling structure of the present invention, the anti-rotation projection 6 provided on the peripheral edge 7 of the rotor front cover 5 is engaged with the anti-rotation recess 2 provided on the front end flange 3 of the rotor body 1. As a result, the rotor body 1 and the cover 5 are positioned, so that the directions of the key insertion holes 4 and 9 in the rotor body 1 and the cover 5 can be accurately and easily matched.

Further, since the rotor 1 and the rotor front cover 5 are molded by die casting, the rotation stopping recess 2 of the rotor body 1 and the rotation stopping projection 6 of the rotor front cover 5 are formed at correct positions.

[Brief description of drawings]

FIG. 1 is a front view of a rotor front cover used in a coupling structure according to an embodiment of the present invention.

FIG. 2 is a rear view of the rotor front cover.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a front view of a rotor body in the coupling structure.

FIG. 5 is a right side view of the rotor body.

FIG. 6 is a rear view of the rotor body.

FIG. 7 is a vertical cross-sectional view of the rotor body and the rotor front cover in a coupled state.

FIG. 8 is a left side view of the same coupled state.

FIG. 9 is a vertical cross-sectional view of the entire structure of a cylinder lock.

[Explanation of symbols]

 1 Rotor Main Body 2 Rotation Stop Recess 3 Front End Collar 4 Key Insertion Hole 5 Rotor Front Cover 6 Rotation Stop Protrusion 7 Rotor Front Cover Perimeter 8 Tongue 9 Key Insertion Hole 10 Lock Body 11 Washer 12 Bolt 13 Stopper 14 Disk tumbler

Claims (1)

[Scope of utility model registration request] 1. A front end flange portion 3 of a rotor body 1 is provided with a rotation stopping projection 6 and a tongue piece 8 on a peripheral edge 7 of a rotor front cover 5.
The rotor front cover 7 and the rotor body 1 are formed by die-casting, and the rotation stopper recess 6 is engaged with the rotation stopper projection 6, and the tongue of the peripheral edge 7 of the rotor front cover 5 is formed. A connecting structure of a rotor and a rotor front cover in a cylinder lock in which the piece 8 is bent and fixed to the front end flange portion 3 of the rotor body 1.