JPH0573733U - Video cassette tape loading device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Compact and lightweight tape loading device. [Structure] A receiving plate 13 having a rewinding / fast-forwarding mechanism 14 for receiving a video cassette tape, a first elongated hole 18 extending at right angles to the running direction of the magnetic tape of the video cassette tape, and a first elongated hole 18 A pair of seconds arranged on both sides of the
The long hole 19, a slide pin 33 slidably arranged in the first long hole, a pair of arm members 21 and 22 each end of which is pivotally supported by the slide pin 33, and a pair supporting the rollers. Support pin 23 movable in the second elongated hole 19, and an elliptical through hole is formed at one end of the support pin 23 so as to be pivotally supported by a force acting on the other end of the slide pin. A lever member 25 that loosely fits, an operation button member 27 that is movably arranged in parallel with the first elongated hole, and an elastic member 29 that connects the operation button member and the other end of the lever member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape loading device for a video cassette tape used in a video recorder or a video camera.

[0002]

[Prior Art]

 As shown in FIG. 4, the video cassette tape has a magnetic tape 1 housed in a cassette case 3. The magnetic tape 1 contacts with the tape guide 2 and is wound and accommodated by the supply reel 4 and the take-up reel 5. This video cassette tape is set in a video recorder or video camera to record and play video and audio.

FIG. 5 shows a state in which a video cassette tape is set in a video recorder and put in a loading state. At this time, the magnetic tape 1 is pulled out from the cassette case 3 by a tape loading device provided in the video recorder, and the magnetic tape 1 is guided by a number of guides 51 to 55 of the video recorder and wound around the magnetic head 57. The magnetic head 57 is pressed. In this state, recording / playback is performed while the magnetic tape 1 moves between the supply reel 4 and the take-up reel 5 at a constant speed.

When reproducing a recorded magnetic tape, it is necessary to rewind to the recording start position. In addition, it also becomes necessary to fast-forward and skip a portion that does not need to be reproduced. Rewinding / fast-forwarding of this magnetic tape is generally performed by a video recorder or video camera which is a recording / playback device. For this reason, video recorders and video cameras are equipped with a rewind / fast-forward mechanism.

Further, during rewinding / fast-forwarding, the video recorder or video camera cannot be used for recording / playback. Therefore, a rewinding / fast-forwarding device that specializes in rewinding / fast-forwarding instead of a video recorder or a video camera is also used. FIG. 7 shows a conventional tape loading device provided in this device. When the video cassette tape is set in the rewinding / fast-forwarding device and put in the loading state, the magnetic tape 1 is pulled out from the position shown by the chain double-dashed line to the position shown by the solid line as shown in FIG. Rewinding and fast-forwarding are performed in this state. The tape loading device shown in FIG. 7 performs this tape drawing. This device includes a pair of rotating arms 72 and 73 that are pivotally supported by a pin 71 and extend in the left-right direction in the drawing, and a pair of loading gears that are respectively arranged at the outer ends of the pair of rotating arms 72 and 73. 74 and 75. The rotating arms 72 and 73 are provided with fan gears 76 at their outer ends, and the fan gears 76 mesh with the loading gears 74 and 75, respectively. The inner ends of the pair of rotating arms 72 and 73 are both engaged with the drive arm 79. The loading gears 74 and 75 include loading arms 77 and 78 fixed to the loading gears 74 and 75, respectively.

When the drive arm 79 moves downward in the drawing, the rotating arms 72 and 73 rotate about the pin 71, and the loading gears 74 and 75 rotate in the direction of the arrow in the figure. As a result, the guide rollers 70 of the loading arms 77 and 78 are moved to the position shown by the alternate long and short dash line, that is, the loading position. At this time, the magnetic tape 1 is pulled out from the position indicated by the chain double-dashed line in FIG. 6 to the position indicated by the solid line, and rewinding / fast-forwarding is performed in this state.

[0007]

[Problems to be solved by the device]

 The conventional tape loading device described above includes a pair of rotating arms 72 and 73 extending in the lateral direction (left and right direction in the drawing), and loading gears 74 and 75 arranged at the outer ends of the rotating arms 72 and 73, respectively. In addition, since the loading gears 74 and 75 are provided with the loading arms 77 and 78 that rotate together with the loading gears 74 and 75, respectively, they become long in the horizontal and vertical directions, making it difficult to downsize the device.

Therefore, an object of the present invention is to provide a novel tape loading device that solves the above problems.

[0009]

[Means for Solving the Problems]

 A tape loading device for a video cassette tape according to the present invention comprises a receiving plate having a rewinding / fast-forwarding mechanism for receiving the video cassette tape, and a first elongated hole extending at right angles to the running direction of the magnetic tape of the video cassette tape. , A pair of second slanted members arranged on both sides of the first elongated hole so that the distance from the video cassette tape increases with the axis of the first elongated hole. An elongated hole, a slide pin slidably arranged in the first elongated hole, a pair of arm members each having one end pivotally supported by the slide pin, and a pair of arm members fixed to the other ends of the pair of arm members. And a support pin that supports the roller and is movable in the pair of second elongated holes, and an elliptical through hole is formed at one end and is rotatably supported by a force acting on the other end so that the elliptical through hole is formed. The slide pin is loosely fitted in the hole. A lever member, an operation button member movably arranged in parallel with the first elongated hole, and the operation button member and the other end of the lever member so as to transmit the operation force of the operation button member to the lever member. It is characterized in that it comprises an elastic member for connecting and.

Hereinafter, an example in which the present invention is applied to a rewinding / fast-forwarding device will be described, but the present invention is not limited to this, and can be applied to, for example, a video recorder or a video camera.

[0011]

【Example】

 FIG. 1 shows a plan view of the tape loading device. The backing plate 13 is equipped with a video cassette tape rewinding / fast-forwarding mechanism 14. The rewinding / fast-forwarding mechanism 14 includes a motor 10 that uses a battery 35 as a power source, a drive belt 11 that transmits the power of the motor 10 to a drive gear 12, and a rewinding / fast-forwarding switching gear 15 that meshes with the drive gear 12. The switching gear 15 includes a fast-forwarding reel gear 16 and a rewinding reel gear 17 which are selectively engageable with each other.

The receiving plate 13 is housed in a housing case (not shown), and a first elongated hole 18 is formed in the center of the board 34 of the housing case. The first elongated hole 18 is an elongated through hole and extends at right angles to the running direction of the magnetic tape 1 (FIG. 2) of the video cassette tape. A pair of second elongated holes 19 and 20 are formed in the receiving plate 13 on both sides of the first elongated hole 18 at substantially equal distances from the axis of the first elongated hole. The second elongated holes 19 and 20 are inclined with respect to the first elongated hole 18 so that the distance from the axis of the first elongated hole 18 increases as the distance from the video cassette tape increases. One end of each of the second slots 19 and 20 is located at the center of the first slot 18, and the other end is located at the other end of the first slot 18.

A slide pin 33 is slidably arranged in the first elongated hole 18. The slide pin 33 is configured to move in the first elongated hole 18 from one end to the other end of the first elongated hole 18 by a lever member described later. A pair of arm members 21 and 22 are pivotally supported on the slide pin 33. A through hole is formed at one end of each of the arm members 21 and 22, and a slide pin 33 is passed through the through hole, whereby the arm members 21 and 22 can rotate about the slide pin 33. A support pin 23 is fixed to the other ends of the pair of arm members 21 and 22. The support pin 23 penetrates the loading guide roller 24 and rotatably supports the loading guide roller 24. The support pin 23 exists in the pair of second elongated holes 19 and 20 and is movable in the second elongated holes 19 and 20 from one end to the other end.

A lever member 25 that drives the slide pin 33 is pivotally supported by a pin 26 located at the center of the first elongated hole 18. The pin 26 is fixed to the substrate 34. An elliptical through hole 27 is formed at one end of the lever member 25, and a slide pin 33 is loosely fitted in the through hole 27. The force acting on the other end of the lever member 25 causes the lever member 25 to rotate about the pin 26, whereby the slide pin 33 moves up and down in the first elongated hole 18. The lever member 25 is operated by the operation button 27. The operation button 27 is arranged on the side of the receiving plate 13 and is movable in parallel with the first elongated hole 18. The operation button 27 is biased toward the slide fixing plate 31 side by the spring 30, and also engages with the stop button 32 during operation to be held in that position. A connecting member 28 is pivotally supported at one end of the operation button 27, and an elastic member, that is, a compression spring 29 is arranged between the connecting member 28 and the other end 25a of the lever member 25. The compression spring 29 elastically contracts in accordance with the movement of the operation button 27 so that the operation button 27 can be moved and the operation force of the operation button 27 is transmitted to the lever member 25.

FIG. 2 is a plan view of the tape loading device in the loading state. When the video cassette tape is loaded in this apparatus, the pair of loading guide rollers 24 are located inside the magnetic tape. When the operation button 27 is operated and moved downward, this operation force is transmitted to the lever member 25 via the connecting member 28 and the compression spring 29, and the lever member 25 rotates clockwise around the pin 26. This rotation is transmitted to the slide pin 33, and the slide pin 33 moves from the position shown in FIG. 1 to the position shown in FIG. With the movement of the slide pin 33, the pair of arm members 21, 22 pivotally supported by the slide pin 33 rotate in opposite directions about the slide pin 33, and the other end side with which the support pin 23 is fixed. Moves from the position shown in FIG. 1 to the position shown in FIG. 2 in the second elongated holes 19, 20. Along with this shift, the magnetic tape 1 is pulled out from the video cassette tape 3 and held at the loading position in FIG. The switching gear 15 of the rewinding / fast-forwarding mechanism 14 selectively engages with the fast-forwarding reel gear 16 or the rewinding reel gear 17 so that the power of the motor 10 is driven by the drive belt 11, the drive gear 12, and the switching gear. When the magnetic tape 1 is transmitted to any reel gear via the gear 15, the magnetic tape 1 is fast forwarded or rewound.

[0016]

[Effect of the device]

 Since the present invention is configured as described above, it is possible to realize a tape loading device in which the horizontal direction and the vertical direction are reduced as compared with the related art, and as a result, it is possible to contribute to downsizing and weight saving of the device. In particular, it is possible to provide an optimum tape loading device in the field of 8 mm video cameras, which are required to be compact and lightweight.

Further, the present device has a long hole, a pin slidable therein, and a plate member (arm member and lever member) as constituent elements, so that the structure is simple and therefore can be manufactured. It will be easy.

[Brief description of drawings]

FIG. 1 is a plan view of a tape loading device according to the present invention.

FIG. 2 is a plan view of the tape loading device in a loading state.

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

FIG. 4 shows a plan view of a video cassette tape.

FIG. 5 is a plan view showing a state in which a video cassette tape is set in a video recorder and put in a loading state.

FIG. 6 is a plan view showing a state in which a video cassette tape is set in a rewinding / fast-forwarding device and put in a loading state.

FIG. 7 is a plan view showing a conventional tape loading device provided in a rewinding / fast-forwarding device.

[Explanation of symbols]

 13 Receiving plate 18 First long hole 19,20 Second long hole 21,22 Arm member 23 Support pin 25 Lever member 27 Operation button 29 Compression spring 33 Slide pin

Claims (4)

[Scope of utility model registration request] 1. A receiving plate having a rewinding / fast-forwarding mechanism for receiving a video cassette tape, and a first elongated hole extending at right angles to a running direction of the magnetic tape of the video cassette tape.
A pair of second elongated holes which are arranged on both sides of the first elongated hole so as to be inclined with respect to the first elongated hole so that the distance from the axis of the first elongated hole increases as the distance from the video cassette tape increases. When,
A slide pin slidably disposed in the first long hole, a pair of arm members each having one end pivotally supported by the slide pin, and a pair of arm members fixed to the other ends of the arm members to support a roller. And a support pin movable in the pair of second elongated holes, and an elliptical through hole formed at one end of the support pin so as to be pivotally supported by a force acting on the other end of the elliptical through hole. A lever member for loosely fitting a pin, an operation button member movably arranged in parallel with the first elongated hole, and an operation button member for transmitting an operation force of the operation button member to the lever member. A tape loading device for a video cassette tape, comprising an elastic member that connects the other end of the lever member. 2. The tape loading device for a video cassette tape according to claim 1, wherein the first elongated hole is provided in the receiving plate or a substrate of a housing case for housing the receiving plate. 3. The tape loading device for a video cassette tape according to claim 2, wherein a pivot pin that pivotally supports the lever member is provided on the substrate. 4. The tape loading device for a video cassette tape according to claim 1, wherein the first elongated hole is provided in the substrate, and the pivot pin is provided in the receiving plate.