JPH0633161Y2 - Rotor mounting structure for locks, etc. - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for holding a rotor housed in a main body such as a lock or a handle at a predetermined position so as not to fall off.

[0002]

2. Description of the Related Art Conventionally, a C-shaped retaining ring has been used to attach a rotor to a body of a lock or the like, and the diameter of the retaining ring is reduced to fit the lock body into the inner surface of the lock body. The retaining ring was fitted in the annular receiving groove provided in the. However, in order to seal the door, etc., the stopper on the lock side and the receiving part on the fixed frame side must be firmly adhered to each other, and as a reaction, a considerably large rotational moment acts on the rotor. ing.

Rotational moment acts on the rotor by the offset weight of the stopper plate with respect to the locking shaft or the offset weight of the locking rod interlocking with the stopper plate. The rotating moment has a reduced diameter with respect to the retaining ring that contacts the rotor,
Since it acts as an external force to distort and deform, there were quite a few accidents where the retaining ring came off the annular receiving groove. This tendency is further enhanced under the use condition where a single or continuous vibration or impact is applied.

[0004]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to prevent the rotor from coming off the lock body even if a large force such as rotation moment or vibration due to the eccentric weight is applied. It is to provide a mounting structure for the data.

[0005]

The rotor mounting structure for a lock or the like according to the present invention will be described below with reference to the reference numerals in the accompanying drawings.
A shaft groove 3 is formed in the rear end surface portion 2b of the rotor accommodating cylinder portion 2, and a circumferential groove 4 is formed at a right angle to the front end portion of the axial groove 3. 2 is continuously provided over the entire circumference of the inner peripheral surface 2a.

The outer peripheral surface 6a of the rotor retaining disc 6 which is fitted into the rotor accommodating tubular portion 2 and abuts against the rear end surface 5a of the main body of the rotor 5 passes through the axial groove 3 and the circle. An outer peripheral projecting piece 7 fitted in the circumferential groove 4 is provided to project in the radial direction. A through hole 11 or a notch 12 with which a rotation stop pin 13 driven into an axial small hole 14 of the rotor accommodating cylinder portion 2 is engaged is provided in an outer peripheral protruding piece 7 of a rotor withdrawal disc 6.

[0007]

The rotor is inserted into the axial groove 3 of the rotor housing cylinder 2 of the main body 1.
The outer peripheral protruding piece 7 of the disk 6
The rotor retaining disc 6 is fitted into the rotor housing cylinder 2, the rotor retaining disc 6 is rotated in the circumferential direction, and the outer peripheral projection 7 is communicated with the axial groove 3 in the circumferential direction. Fit in the groove 4.

Next, the rotation stopping pin 13 is driven into the axial small hole 14 of the rotor housing cylinder 2, and the rotation stopping pin 13 is engaged with the through hole 11 or the notch 12 of the outer peripheral protruding piece 7 to make a roll.
Rotation of the rotor retaining disc 6 is prevented, and the rotor retaining disc 6 is fixed in a state in which the outer peripheral projection 7 is fitted in the circumferential groove 4.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a stopper plate 10 fitted to a rear end shaft portion 5b of a rotor is fixed to a rotor 5 by a bolt 8. The rotor retaining disk 6 is provided with three outer peripheral projections 7, one of which is provided with a through hole 11 and the other one of which is provided with a notch 12. The axial small hole 14 of the rotor accommodating cylinder portion 2 is formed in the rear end surface portion 2b of the rotor accommodating cylinder portion 2 forming the wall portion of the circumferential groove 4 at 2b. The rotation stop pin 13 driven into the axial small hole 14,
The reference numeral 13 prevents the rotation of the rotor retaining disc 6 by engaging the tip portion with the through hole 11 or the notch 12. If at least one of the through hole 11 and the notch 12 is provided, the above-mentioned purpose of preventing rotation is achieved.

[0010]

As described above, in the rotor mounting structure of the lock or the like of the present invention, the circumferential groove 4 communicating with the axial groove 3 of the inner peripheral surface 2a of the rotor accommodating cylinder portion 2 at a right angle is rotated. -The rotor housing cylindrical portion 2 is continuously provided over the entire circumference of the inner peripheral surface 2a,
A radial outer peripheral projecting piece 7 projecting from the outer peripheral surface 6a of the rotor retaining disc 6 is fitted into the circumferential groove 4 via the axial groove 3 to reduce the axial small size of the rotor housing tubular portion 2. By engaging the rotation stop pin 13 driven into the hole 14 with the through hole 11 or the notch 12 of the outer peripheral projection piece 7, the rotor retainer disc 6
Rotation of the rotor is prevented, and the rotor disc 6 is fixed in a state in which the outer peripheral projection piece 7 is fitted in the circumferential groove 4, so that it is possible to prevent the rotation moment due to the conventional vibration impact or displacement load. Compared to a rotor mounting structure that uses a weak and weak C-shaped retaining ring,
The function to prevent the removal of data is significantly enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view of a main body, a rotor stopper disc, and a rotation stopper pin according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where the rotor retaining disc is fitted into a main body and a rotation stopper pin is driven.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Rotor accommodating cylinder 2a Inner peripheral surface of rotor accommodating cylinder 2b Rear end surface of rotor accommodating cylinder 3 Axial groove 4 Circumferential groove 5 Rotor 5a Main body of rotor Rear end surface 5b Rotor rear end shaft portion 6 Rotor retaining disc 6a Rotor retaining disc outer peripheral surface 7 Outer peripheral projection 9 Central through hole 10 Clasp 11 Through hole 12 Notch 13 Rotation stop Pin 14 Small axial hole

Claims (1)

[Scope of utility model registration request] 1. An inner peripheral surface 2a of a rotor housing cylinder portion 2 of a main body 1.
Is provided with an axial groove 3 opened at the rear end surface portion 2b of the rotor accommodating cylinder portion 2, and a circumferential groove 4 communicating at a right angle with the front end portion of the axial accommodating groove portion 3 is provided with a rotor accommodating cylinder portion 2. Is continuously provided over the entire circumference of the inner peripheral surface 2a, and is fitted into the rotor accommodating cylinder portion 2.
On the outer peripheral surface 6a of the rotor retaining disc 6 that abuts on the rear end surface 5a of the main body of the rotor 5, an outer peripheral projection 7 is fitted in the circumferential groove 4 through the axial groove 3 in the radial direction. A through hole 11 or a notch 12 is provided on the outer circumferential protruding piece 7 of the rotor retaining disk 6 so as to be projected and engage with a rotation stopping pin 13 driven into an axial small hole 14 of the rotor housing cylinder 2. Rotor mounting structure for locks, etc.