JPH03218180A - VTR integrated camera - Google Patents

Abstract

PURPOSE:To reduce the number of motors, reduction gear blocks and their arranging space and to reduce also the size, weight and price of the camera with a built-in VTR by sharing a motor and a reduction gear block by a camera lens part and a video camera part. CONSTITUTION:The camera is provided with a switch for driving a zoom motor 24 and zoom motor driving force switching mechanisms 20, 25 to 27 interlocking with a switch 13 for switching the using states of the video and the camera to switch the transmission route of driving force of the zoom motor 24 to the zoom lens barrel (23) side or the video (2) side so that lens zooming operation and video mode operation can be executed by the same motor 24. Consequently, the motor and the reduction system can be shared and the size, weight and price of the camera with a built-in video can be reduced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention... The present invention relates to a motor driving force switching mechanism for a VTR-integrated camera, and particularly relates to a VTR-integrated camera suitable for downsizing, weight reduction, and cost reduction.

[Conventional technology]

Conventionally, the video section of a video integrated camera was
As described in Japanese Patent No. 18848, a loading motor was arranged to transmit power to the tape loading member and the mode cam. On the other hand, the camera part is JP-A-63-2
As described in Japanese Patent No. 41509, a zoom motor and an A. F. It was equipped with a motor.

[Problem to be solved by the invention]

The above-mentioned conventional technology does not take into consideration the effective use of the motor. That is, when using a VTR-integrated camera for video, the zoom motor, A. F. The motor is not used, whereas the loading motor is hardly used when used as a camera. Therefore, there is a problem in that the number of motors is large despite the short actual operating time of each motor, which is an impediment to miniaturization and weight reduction.

The purpose of the present invention is to reduce the size and weight of a video integrated camera by promoting the common use of a motor and a reduction system.
The objective is to promote cost reduction.

[Means to solve the problem]

The above purpose is to use the zoom lens movement switch (hereinafter referred to as W/
(hereinafter referred to as TSW), automatic/manual focus adjustment switch (hereinafter referred to as A.F.SW), video and camera changeover switch (hereinafter referred to as V/CSW), start of recording when using the camera, Stop switch (hereinafter referred to as REC)
(referred to as S/S SW), recording check switch, etc., or in conjunction with the switching operation, the transmission direction of the motor's driving force is set to the side of the video driven part such as the loading mechanism, mode cam, etc. This can be achieved by providing a motor driving force switching mechanism for switching between the zoom lens barrel and the moved part side of the focus lens barrel.

[Effect]

To use both the zoom mode and loading motor, set the V/C SW on the camera side, and set the W/T SW on the camera side.
The zoom lens is driven when is turned on, while
■When the /C SW is set to the video side, the V/C is used to drive the loading mechanism and mode cam.
SW. The W/T SW and motor power switching mechanism are linked.

Also, A. F. To combine the motor and loading motor, set the V/C SW on the camera side, and also set the A.
F. When the SW is set to the autofocus side, the lens is driven and the V/C is set to the video side.When the SW is set to the video side, the V/C is set to drive the loading mechanism and mode cam.
S.W. and A. F. The SW is linked to the motor parking power switching mechanism.

Also, in both of these two types of dual-use, the REC S/S SW. Recording Chinic S
Press W to temporarily switch the loading mechanism, which operates the video mechanism, to the mode cam side.
The EC S/S SW, recording check SW, and motor power switching mechanism are linked.

By doing so, one motor can perform loading and mode cam operations, zoom lens operation, or autofocus operation.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a sectional view showing an outline of a video section and a lens section of a video integrated camera, and FIG. 2 is a back view of FIG. 1. In Figure 1, the video section (mechanism section) 2 is on the right side.
The tape 12 pulled out from inside the cassette 3 is wound around the cylinder 8. The tape 12 is pulled out by rotating the loading members 7 and 7', which have a laminated structure on which the tape guides 6 and 36 are mounted, and rotate in opposite directions, and each mechanical element (not shown) is pulled out by mode transition.
Parking control is performed by rotating the mode cam 9.

Further, the gear 10 is a gear with a mode switch, which has a mode switch (not shown) attached to its lower part for detecting the mode state.

A gear 11 fixed on the chassis relays the driving force to the loading member 7, mode cam 9, and gear with mode switch 10 (see FIGS. 3 and 4). The gear 11 connects the zoom motor 18 to the reduction gear block 24.
, the gear 25, the switching gear 26, the gear 20, and the flexible shaft 19.

The left half shows the lens barrel and its driving mechanism. 17 is A. F. It's a motor. A. F. The power of the motor 17 is transmitted through a rubber belt 31 and a reduction gear block 3.
2. Rotate the focus lens barrel (front lens) 4 via the gear 33, gear with clutch 34, and gear 35. The zoom motor 18 rotates the zoom lens barrel 23 via the clutch gear 21 and gear 22 when the switching gear 26 engages with the gear 27.

On the other hand, the body 1 is equipped with a video and camera switching switch V/C as a switch for operating the switching gear 26.
SW13 and W/TSW15, which moves the zoom lens to the wide side and telephoto side, and REC S/S SW16, which switches the recording start and pause of the image from the lens when V/CSWI 3 is tilted toward the camera side, are installed. be. Note that circuit wiring for each switch is omitted.

3 and 4 are enlarged views of portions related to the switching gear 26 in FIGS. 1 and 2. FIG.

The switching gear 26 can rotate around the member 43. The member 43 is adapted to perform a sliding motion along a shaft 42 fixed to the body 1 by support members 37 and 38, and is biased to the right by a pressure spring 41. That is, when the operating force from each switch is not applied, the zoom motor 24 serves as a video motor. The W/TSW 15 is made of plastic rod-shaped members 30a and 30 that slide smoothly within the tube-shaped members 30A and 30B without buckling.
b. W/T connected to member 43 via leaf spring 39
By pressing SW15, the switching gear 26 slides to the left, and the power of the zoom motor 24 is transmitted to the relay gear 27 to the camera side. At this time, the spring constant is selected so that the leaf spring 39 will not bend under the biasing force of the compression spring 41. REC S/
A plastic rod member 29 that slides inside a tubular member 29 is connected to the SW16.
The switching gear 26 is pushed to the right only when the CS/S SW 16 is pressed. V/CS
In W13 as well, a plastic rod-like member 28a that slides inside the tube-like member 28 is connected, and the V
/C When the SW 13 is slid as shown in the figure (video side), the switching gear 26 is pushed to the right.

Also, W/TSW15, REC S/S SW16
Both switches automatically return to the state shown in FIG. 3 by a spring (not shown) provided in each switch after being pressed by a finger. The V/C SW13 remains in the slid position.

In addition, as shown in Fig. 4, W/TSW15 and V/CS
When W13 is pressed at the same time, the leaf spring 39 is bent, and the switching gear 26 is forcibly pushed to the right (towards the video mechanism).

Similarly, when the REC S/S SW16 and W/TSW15 are pressed simultaneously, the switching gear 26 is pushed to the right. In this way, the configuration is such that video operation is prioritized over lens operation.

FIG. 9 shows the relationship between each switch and the connection state of the switching gear 26. By doing this, it is possible to omit the motor for loading and mode operation, the reduction gear block, and the supporting space for these components (the dashed line 2a of the chassis in Figure 1), resulting in smaller size, lighter weight, and lower cost. It is possible to promote the Also, even when the lens is operating, the REC
Just by pressing the S/SSW 16, the motor drive direction can be instantly switched to the video mechanism side, so the mode switching time can be equivalent to that of a dedicated loading mode.

5 and 6 show embodiments in which a solenoid 44 is used as the switching mechanism. The switching gear 26 is connected to the support member 50.5.
It is rotatably supported by a shaft 49 that is slidably held by 1.

Member 47 is fixed to shaft 49.

48 is a compression spring that connects the switching gear 26 to the gear 2 on the lens side.
It is biased to combine with 7. The solenoid 44 is
It is connected to an arm 45 rotatably supported around a shaft 46 mounted on the body 1, and when voltage is applied, the solenoid 44 pulls the arm 45 against the compression spring 48, causing the member 47 to move as shown in the figure. Pushed to the right, the switching gear 26 meshes with the gear 2o. Solenoid 44 is REC
The circuit is configured so that when the S/S SW 16 is pressed once, the compression spring 48 is kept pressed until a signal indicating the end of mode transition is received from the mode switch 52. In addition, W/TSW
When SWI 15 and SWI 16 are pressed at the same time, a circuit (not shown) gives priority to the SWI 16 command. When you set the recording check SW, which briefly rewinds and plays back to check the previous recording status, press the
Just use the WI 16 as a recording switch SW and add another similar circuit.

FIG. 10 shows the connection state between each switch and the switching gear 26. By doing this, the reduction gear block can be shared, reducing the number of parts and the installation space.
It is possible to promote smaller size and lighter weight.

Next, FIGS. 7 and 8 are A. F. This is an example of the motor power switching mechanism for the mechanism, loading, and mode operation mechanism. 17 is A.I., which controls both organizations. F. motor, 5
3 is a reduction gear block, and a gear 27 is a relay idler that transmits power to the focus lens barrel (front lens) 4, and is engaged with a gear with a clutch 34 shown in FIG. 1 (not shown). Also. A like V/C SW13
．． F. A plastic rod-shaped member 54a is connected to the SW 14, and by sliding smoothly inside the tubular member 54, the A. F. The operating force of the SW 14 is made to be the switching force of the switching gear 26.

Mechanically, in FIG. 7, W in FIGS. 3 and 4 is
/TSW15's role is A. F. This is performed by SW14, and the status of each switch and changeover gear is shown in the W/T SW column in FIG. F. This is equivalent to using SW. FIG. 8 shows an embodiment of a motor power switching mechanism using a solenoid 44. Mechanically, FIG.
In the figure A. F. This is the one with SW14 added. FIG. 11 shows the connection state of each switch and switching gear.

As a result, in the method shown in FIG. 7, the number of motors, reduction gear blocks, and their supporting space can be reduced, and in the method shown in FIG. 8, the number of reduction gear blocks and the space for their arrangement can be reduced.

〔Effect of the invention〕

According to the present invention, in a VTR integrated camera, the motor and reduction gear block can be shared between the camera lens section and the video mechanism section.
Also, by reducing the space for their arrangement, they can be made smaller, lighter, and lower in price.

[Brief explanation of drawings]

FIGS. 1 and 2 are cross-sectional views of a lens operating mechanism and a video mechanism according to an embodiment of the present invention in which the zoom motor and loading motor are combined. 3 and 4 are enlarged views of the motor parking power switching mechanism in FIGS. 1 and 2. FIG. 5 and 6 are enlarged views of a motor driving force switching mechanism using a solenoid. Figure 7 shows A. F. FIG. 8 is an enlarged view of a motor driving force switching mechanism of an embodiment in which a motor and a loading motor are used, and FIG. 8 is a diagram showing an embodiment using a solenoid. Figure 9 corresponds to Figures 1 to 4, and Figure 10 corresponds to Figure 5.
FIG. 11 corresponds to FIG. 8 and FIG.
3.-V/C switch, 14.A. F. SW,
1 5...W/T SW, 16...REC
S/S SW, 17... Focus lens barrel (front lens), 18... Zoom lens barrel, 19... Flexible shaft joint, 20... Video side relay gear, 24, 32.
53... Reduction gear block, 28, 29.30A, 3
0B, 54 tubular member, 28a, 29a, 30a,
30b... Rod-shaped member, 44... Solenoid.

Claims (1)

[Claims] 1. A zoom motor (
24), a switch (15) for operating the zoom motor (24), a switch (13) for switching between video and camera usage, and video signals from the camera lens unit (4, 23) to be transferred to a magnetic tape (12). ), the transmission path of the driving force of the zoom motor (24) is zoomed in conjunction with the switch (15) and the changeover switch (13). Zoom motor drive force switching mechanism (20, 25,
26, 27, 37, 38, 39, 41, 42, 43, 4
4, 45, 46, 47, 48, 49, 50, 51), and the lens zoom operation and video mode operation are operated by the same motor (24).
Integrated camera. 2. The autofocus motor (17), the auto/manual focus adjustment switch (14), the switch (13), and the video signal from the camera lens unit (4, 23) are transferred to the magnetic tape (12). ) In a VTR-integrated camera having a video unit (2) that records using (4) side and video (2) side (20, 25, 26, 27, 3)
7, 38, 39, 41, 42, 43, 44, 45, 46
, 47, 48, 49, 50, 51), and the same motor (
17) A VTR-integrated camera characterized by being operated by. 3. Motor driving force switching mechanism of zoom motor (24) (
20, 25, 26, 27, 37, 38, 39, 41, 4
2, 43, 44, 45, 46, 47, 48, 49, 50
, 51) are interlocked with a switch (16) and a mode switch (52) for switching between starting recording on the magnetic tape (12) and pausing recording when using the camera,
The switch (16) temporarily connects the driving force of the zoom motor (24) to the video side, making the video side operable, and upon completion of the mode operation, the zoom motor (24) is switched off.
24) reconnect the driving force to the camera lens (23 or 4)
2. The VTR-integrated camera according to claim 1, further comprising a configuration for returning the camera side to the side so that the camera side can be operated. 4. Motor drive force switching mechanism (20, 25, 26, 27, 37, 38,
39, 41, 42, 43, 44, 45, 46, 47, 4
8, 49, 50, 51) are switches (16) for switching between starting recording on the magnetic tape (12) and pausing recording when using the camera.
, and the mode switch (52), the switch (1
6), the driving force of the motor (17) is temporarily connected to the video side, the video side is made operable, and when the mode operation is completed, the driving force of the motor (17) is connected again to the camera lens (23 or 4) side. VT according to claim 2, further comprising a configuration for returning the camera to an operable state.
R integrated camera. 5, Changeover switch (13), switch (15, 16)
and the driving force switching mechanism (20, 25, 26, 27, 37, 38, 39, 4) of the zoom motor (24).
1, 42, 43, 44, 45, 46, 47, 48, 49
, 50, 51), the transmission part of the operation force of the changeover switch (13) and the switch (15, 16) is the tubular member (28, 30A, 30B, 29) and the tubular member (28, 30A, 30B). , 29) that slide within the rod-shaped members (28a, 30a, 30b, 29a).
) The VTR-integrated camera according to claim 1 or 3, wherein the VTR-integrated camera is configured to include the following. 6, Changeover switch (13, 14), switch (16)
switches and autofocus motor (17)
driving force switching mechanism (20, 25, 26, 27, 37,
38, 39, 41, 42, 43, 44, 45, 46, 4
7, 48, 49, 50, 51)
13, 14), the transmission part of the operating force of the switch (16) consists of a tubular member (28, 54, 29) and a rod-shaped member (28a, 54a, 29) that slides inside the tubular member.
The VTR-integrated camera according to claim 2 or 4, having a configuration comprising: a). 7. The spring member (39) installed in a part of the members (30a, 30b, 39, 43) that link the switch (15) and the switching gear (26), When the operating force from the switch (15) is applied against the operating force from the switch (16) or the changeover switch (13), the switching gear (26) deflects and transfers the operating force from the switch (15).
6. The VTR according to claim 1, wherein the VTR has a configuration in which the switching gear (26) is not switched.
Integrated camera. 8. Members (30a, 30b, 39, 54a) linking the changeover switch (14) and changeover gear (26)
A spring member (39) installed in a part of the switch (39) applies the operating force from the switch (14) to the switching gear (26) against the operating force from the switch (16) or the changeover switch (13). By bending, the operating force from the switch (14) is changed to the gear (26).
7. The VTR according to claim 2, wherein the VTR has a configuration in which the switching gear (26) is not switched.
Integrated camera.