JPH0662152U - 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. A rotor front cover 7 is provided with an anti-rotation concave portion 8 on an inner flat surface portion 9, a front end flat portion 3 of a rotor main body 1 is provided with an anti-rotation projection 2, and a front end peripheral portion is provided with a collar portion 5. 7 and the rotor main body 1 are formed by die casting, the anti-rotation projection 2 is engaged with the anti-rotation recess 8, and the flange portion 5 at the front end peripheral edge of the rotor body is bent over the entire circumference.
The rotor body 1 and the rotor front cover 7 are fixed to each other.

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 capable of easily and accurately aligning the directions of the key insertion holes of the rotor body and the rotor front cover and coupling the both.

[0005]

[Means for solving problems]

 Referring to the reference numerals in the accompanying drawings, the rotor front cover 7 and the rotor body 1 are formed by die casting in the coupling structure of the present invention, and the inner surface of the rotor front cover 7 is prevented from rotating. Is provided with a rotation concave portion 8, a front end flat portion 3 of the rotor main body 1 is provided with a rotation stopping projection 2, and a front end peripheral portion is provided with a flange portion 5, and the rotation stopping concave portion 8 is engaged with the rotation prevention projection 2. The flange portion 5 at the peripheral edge of the front end of the rotor body is bent over the entire circumference to fix the rotor body 1 and the rotor front cover 7 to each other.

[0006]

[Action]

 By engaging the anti-rotation recess 8 of the rotor front cover 7 and the anti-rotation protrusion 2 of the rotor body 1, the rotor body 1 and the key insertion holes 4 and 11 of the cover 7 are aligned, and the front end of the rotor body is aligned. The rotor body 1 and the rotor front cover 7 are joined by bending the peripheral flange portion 5 over the entire circumference.

[0007]

【Example】

 1 to 9 show an embodiment of the present invention. As shown in FIG. 1 to FIG. 3, two rotation stopping recesses 8 are provided in the inner flat surface portion 9 of the rotor front cover 7. Further, an inclined surface 10 is provided on the outer circumference of the cover 7 over the entire circumference.

On the other hand, as shown in FIGS. 4 to 6, the front end flat portion 3 of the rotor body 1 is provided with two rotation stopping protrusions 2. Further, a brim 5 is provided all around the front edge.

The rotation stopping recessed portion 8 of the rotor front cover 7 and the rotation stopping protrusion 2 of the rotor body 1 of the rotor front cover 7 and the key insertion holes 11 and 4 of the rotor body 1 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 body 1 and the rotor front cover 7 are coupled by engaging the rotation stopper recess 8 of the rotor front cover 7 and the rotation stopper projection 2 of the rotor body 1 with each other. The key insertion holes 11 and 4 are aligned in the same direction, the rotor front cover 7 is housed in the recess 6 surrounded by the collar 5 on the front edge of the rotor body 1, and the collar 5 is bent over the entire circumference at once. Then, the rotor body 1 and the rotor front cover 7 are joined by pressing the inclined surface 10 of the rotor front cover 7 and the flange 5 into contact with each other by caulking and fixing.

[0011]

[Effect of device]

 As described above, in the coupling structure of the present invention, the rotation stopping protrusion 2 provided on the front end flat portion 3 of the rotor body 1 and the rotation stopping recess 8 provided on the inner flat portion 9 of the rotor front cover 7 are provided. Since the rotor body 1 and the rotor front cover 7 are positioned by engaging with each other, the directions of the key insertion holes 4 and 11 of the rotor body 1 and the cover 7 can be accurately and easily matched. be able to.

Further, since the rotor body 1 and the rotor front cover 7 are molded by die casting, the rotation stopping projection 2 of the rotor body 1 and the rotation stopping recess 8 of the rotor front cover 7 are molded at accurate positions. .

The rotor body 1 and the rotor front cover 7 are coupled to each other by bending the collar 5 provided on the front end peripheral edge of the rotor body 1 and press-contacting it with the inclined surface 10 of the rotor front cover 7 to fix it by caulking. To be done. According to this method, since the caulking can be performed over the entire circumference in one operation, the caulking process can be made efficient, and the coupling force can be increased.

[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 sectional view taken along the line AA of FIG.

FIG. 3 is a rear view of the rotor front cover.

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

5 is a sectional view taken along line BB of FIG.

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

FIG. 7 is a front view of a rotor main body and a rotor front cover in a coupled state.

FIG. 8 is a sectional view taken along line CC of FIG.

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 Projection 3 Front End Plane 4 Key Insertion Hole 5 Collar 6 Cover Housing 7 Rotor Front Cover 8 Rotation Stopper Recess 9 Inner Flat Surface 10 Slope 11 Key Insertion Hole 12 Lock Body 13 Washer 14 Bolt 15 Stopper 16 Disc tumbler

Claims (1)

[Scope of utility model registration request] 1. A rotor front cover 7 is provided with an anti-rotation recess 8 in an inner flat surface portion 9, a front end flat portion 3 of a rotor body 1 is provided with anti-rotation projections 2, and a front end peripheral portion is provided with a collar portion 5. The front cover 7 and the rotor main body 1 are formed by die casting, the rotation stopping projections 2 are engaged with the rotation stopping recesses 8, and the flange portion 5 at the front end peripheral edge of the rotor main body is bent over the entire circumference.
A connecting structure of a rotor and a rotor front cover in a cylinder lock for fixing the rotor body 1 and the rotor front cover 7 together.