JPH071438U - Camera motor mounting structure - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a motor mounting structure for a camera, in which a motor is supported by a motor mounting member via a vibration damping member. The purpose is to secure it securely. In a motor mounting structure of a camera in which a motor is supported by a motor mounting member via a vibration damping member, a vibration damping member is fitted to a part of an end surface and an outer peripheral surface of the motor on a drive gear side. The outer peripheral surface of the vibration isolating member is fitted into a mounting hole formed in the motor mounting member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a camera motor mounting structure in which a motor is supported by a motor mounting member via a vibration damping member.

[0002]

[Prior art]

 In general, a camera is provided with a motor for moving the lens barrel, winding the film, and rewinding the film.

Conventionally, as shown in FIG. 4, for example, a motor of this type is fixed to a motor mounting member 13 by a screw 17 via a vibration isolating rubber 15 in order to prevent vibration of the motor 11. ing.

[0004]

[Problems to be solved by the device]

 However, in the conventional motor mounting structure, there is a problem in that the motor 11 is inclined with respect to the motor mounting member 13 as indicated by a chain double-dashed line in FIG.

That is, when the motor 11 tilts in this way, the axial distance between the pinion 21 fixed to the rotation shaft 19 of the motor 11 and the next-stage gear becomes unstable, and the gear tooth noise becomes large, and There is a problem that the durability of the gear is reduced.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a motor mounting structure for a camera capable of securely fixing the motor to the motor mounting member via an anti-vibration member. To do.

[0007]

[Means for Solving the Problems]

 The motor mounting structure for a camera according to the present invention is a motor mounting structure for a camera in which a motor is supported by a motor mounting member via a vibration isolating member, and one end surface and an outer peripheral surface on the drive gear side of the motor are A vibration-proof member is fitted to the portion, and the outer peripheral surface of the vibration-proof member is fitted and inserted into a mounting hole formed in the motor mounting member.

[0008]

[Action]

 In the motor mounting structure for a camera of the present invention, the motor is supported by the vibration isolating member fitted to the end surface and the outer peripheral surface of the motor on the rotating shaft side, and the vibration isolating member is formed on the motor attaching member. Since the motor is fitted in the mounting hole and supported by the motor mounting member, the motor can be securely fixed to the motor mounting member.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of a motor mounting structure for a camera according to the present invention. In the drawings, reference numeral 31 denotes a motor.

A flat portion 31 a is formed on the outer periphery of the motor 31 so as to face it. A rotary shaft 33 projects from one side of the motor 31, and a pinion 36 is fixed to the rotary shaft 33.

A vibration isolating member 35 made of rubber, for example, is fitted on the end surface 31b and the outer peripheral surface 31c of the motor 31 on the rotary shaft 33 side. The vibration isolator 35 has a tubular portion 35a fitted around the outer periphery of the motor 31 and a bottom surface portion 35b integrally formed on one side of the tubular portion 35a. The end surface 31b of the motor 31 on the rotary shaft 33 side is fitted.

A through hole 35c for inserting the rotary shaft 33 of the motor 31 is formed in the center of the bottom surface portion 35b, and a pair of circular seat portions 35d are formed on both sides of the through hole 35c. There is.

An annular groove portion 35e is formed between the seat portion 35d and the bottom surface portion 35b. A through hole 35f is formed so as to penetrate through the seat portion 35d and the bottom surface portion 35b of the vibration isolator 35, and the connecting portion 37a of the screw 37 is inserted into the through hole 35f.

The male screw portion 37b of the screw 37 is screwed into a female screw portion formed on the end surface 31b of the motor 31 on the rotating shaft 33 side. The head portion 37c of the screw 37 causes the seat portion 35d to move to the motor 31. Pressed to the side.

Reference numeral 39 indicates a motor mounting member, and a cylindrical protruding portion 41 is formed on one side of the motor mounting member 39. The inner surface of the cylindrical protruding portion 41 is a mounting hole 41a having a shape corresponding to the outer peripheral shape of the cylindrical portion 35a of the vibration isolating member 35, and the outer peripheral surface 35g of the vibration isolating member 35 is inserted in the mounting hole 41a. Has been inserted.

One side of the cylindrical protruding portion 41 is covered with a supporting portion 43, and a through hole 43 a through which the rotating shaft 33 of the motor 31 is inserted is formed in the center of the supporting portion 43.

Further, a pair of circular engagement holes 43b are formed on both sides of the through hole 43a, and a peripheral edge portion of the engagement holes 43b forms a seat portion 35d of the vibration isolator 35 and a bottom surface portion 35b. It is fitted and inserted in an annular groove portion 35e formed between.

FIG. 3 is a front view of the entire motor mounting member 39. In this embodiment, the motor mounting member 39 is a dark box. The motor mounting member 39, which is a dark box, is fixed to the camera body (not shown) by screws 45.

A lens barrel 47 is arranged at the center of the motor mounting member 39. A gear 49 is arranged on the outer circumference of the lens barrel 47. On the other hand, the reduction gear 51 is meshed with the pinion 36 fixed to the rotary shaft 33 of the motor 31, and the reduction gear 53 is meshed with the gear 49 formed on the outer periphery of the lens barrel 47.

Further, reduction gears 55 and 57 are interposed between the reduction gear 51 and the reduction gear 53. Therefore, by driving the motor 31, the rotation of the rotary shaft 33 is transmitted to the gear 49 via the pinion 36, the reduction gears 51, 55, 57, 53, and thereby the lens barrel 47 is moved in the optical axis direction. Be moved.

In FIG. 3, reference numeral 59 indicates a strobe, and reference numeral 61 indicates a capacitor. Thus, in the camera motor mounting structure configured as described above, the vibration isolating member 35 is fitted on the end surface 31b and the outer peripheral surface 31c of the motor 31 on the rotating shaft 33 side, and the outer peripheral surface 35g of the vibration isolating member 35 is attached. Since the motor 31 is fitted into the mounting hole 41a formed in the motor mounting member 39, the motor 31 can be securely fixed to the motor mounting member 39 via the vibration isolating member 35.

That is, in the above-described camera motor mounting structure, the motor 31 is supported by the vibration isolating member 35 fitted to the end surface 31b and the outer peripheral surface 31c of the motor 31 on the rotating shaft 33 side. Since the vibrating member 35 is fitted into the mounting hole 41a formed in the motor mounting member 39 and supported by the motor mounting member 39, the motor 31 can be reliably supported by the motor mounting member 39.

Since the motor 31 is securely supported by the motor mounting member 39, the elasticity of the vibration damping member 35 prevents the motor 31 from tilting with respect to the motor mounting member 39 as in the conventional case. As a result, the axial distance between the pinion 36 fixed to the rotary shaft 33 of the motor 31 and the next-stage gear becomes stable, and the gear tooth noise can be reduced and the durability of the gear can be improved.

In the above-mentioned embodiments, the vibration-proof member 35 is made of rubber, but the present invention is not limited to this embodiment. For example, a resin material having elasticity is used. Of course, it may be formed.

Further, in the above-mentioned embodiments, the example in which the present invention is applied to the motor 31 for driving the lens barrel 47 has been described, but the present invention is not limited to such an embodiment, and for example, a film Of course, it can also be applied to motors for winding and rewinding.

[0026]

[Effect of device]

 As described above, in the motor mounting structure for the camera of the present invention, the vibration-proof member is fitted on the end face and the outer peripheral face of the drive gear side of the motor, and the outer peripheral face of the vibration-proof member is mounted on the motor. Since the motor is fitted into the mounting hole formed in the member, there is an advantage that the motor can be securely fixed to the motor mounting member via the vibration-proof rubber.

[Brief description of drawings]

1 is a sectional view taken along the line I-I of FIG. 3, showing an embodiment of a motor mounting structure for a camera of the present invention.

FIG. 2 is an exploded perspective view showing the motor mounting structure of FIG.

3 is a front view showing a lens barrel driven by the motor of FIG. 1. FIG.

FIG. 4 is a cross-sectional view showing a motor mounting structure for a conventional camera.

[Explanation of symbols]

 31 motor 31b end face 31c outer peripheral surface 33 rotating shaft 35 vibration damping member 35g outer peripheral surface 39 motor mounting member 41a mounting hole

Claims (1)

[Scope of utility model registration request] 1. A motor mounting structure for a camera, wherein a motor is supported by a motor mounting member via a vibration damping member. A motor motor mounting structure for a camera, characterized in that the outer peripheral surface of the vibration damping member is fitted into a mounting hole formed in the motor mounting member.