JP3095648U - Video cassette recorder tape loading device - Google Patents

Abstract

(57) Abstract: In a tape loading device of a video cassette recorder, a loading lever is prevented from falling off a slider. SOLUTION: A slider 5 on which a guide roller 5a for tape loading or the like is erected and a loading lever 7 for applying a driving force for tape loading to the slider 5 are coupled by a boss 50 and a coupling hole 71. . A fan-shaped convex portion 72 protruding outward is formed near the coupling hole 71 of the loading lever, and an eave-shaped protruding piece 55 protruding on the lower surface side of the loading lever 7 is formed on the slider 5. At least a part of each of the convex portion 72 and the projecting piece 55 overlaps in plan view from the start of loading to the end of loading, and a part of the projecting piece 55 is always located below the convex portion 72. The lever 7 does not fall off the slider 5.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention draws a magnetic tape from a video cassette and winds it around a head cylinder. Tape loading device.

[0002]

[Prior art]

  Conventionally, in the tape loading device of the video cassette recorder, By providing a protrusion on the lower surface of the slider on which the id roller and the guide post are erected, The guide roller has an attitude angle so that the top edge of the tape is Prevents contact with the flange on the top of the id roller to prevent damage to the magnetic tape Such a device is known (for example, refer to Patent Document 1). Tape like this In the loading device, the slider slides in the guide groove provided on the chassis. It is freely inserted and attached via the loading lever on the bottom side of the chassis. It receives the driving force and slides along the guide groove. With slider and loading lever For example, the boss provided on the slider is installed at one end of the loading lever. It is rotatably connected by being inserted into the formed connecting hole. Rhodin The other end of the lever is connected to the tip of an arm-shaped member that is rotatably supported by the chassis. The loading lever is connected and the rotation driving force of the arm member is slid. To the tape loader, the slider slides along the guide groove. Is done.

[0003]

[Patent Document 1]           JP-A-6-243558

[0004]

[Problems to be solved by the device]

  However, in the tape loading device having the above-mentioned configuration, Due to the play generated at the joint between the member and the loading lever, the loading lever is Is rattled. When the backlash increases further, the connection between the boss and the connection hole is released, The loading lever may fall off the slider.

[0005]   The present invention has been made to solve the above-mentioned problems, and a slider or Tape of a video cassette recorder that prevents the loading lever from falling off An object is to provide a loading device.

[0006]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the device of claim 1 provides a tape loading tape. The sliders on the supply side and the take-up side, in which the id roller and the guide post are set upright, are the heads. Can slide along the guide groove on the chassis so that they face each other across the cylinder. This slider is used for tape loading on the bottom side of the chassis. The tape loader is rotatably connected to the loading lever member that receives the driving force. In a tape loading device of a video cassette recorder driven by a ring. The protrusion protruding outward is fan-shaped in the vicinity of the coupling part of the steering lever member with the slider. The slider has an eaves that protrudes to the lower surface side of the loading lever member. -Shaped protruding piece is formed, and at least a part of each of the protrusion and the protruding piece is Overlap from the loading start position to the loading end position of the lid in plan view Make sure that the loading lever member does not fall off the slider due to the matching positional relationship. It is composed of.

[0007]   In this configuration, the loading lever member has a fan-shaped protrusion and a slant. At least a part of each of They overlap each other in a plan view, and a part of the protruding piece is always located below the convex portion. this The loading lever member is about to fall off the slider. However, the convex portion engages with the protruding piece, and the loading lever member can be prevented from falling off. Well In addition, the protrusion and the protrusion are formed in a fan shape and the protrusion piece is formed in an eaves shape. The positional relationship with the projecting piece is the slide from the start of loading to the end of loading. Can be maintained reliably in the movable range of the loader, and the loading lever member must be removed. The drop is surely prevented. In addition, the protrusions are fan-shaped, so loading Even if the loading lever rotates relative to the slider during operation, the The distance between the edge and the slider is always kept almost constant, avoiding interference between the protrusion and the slider. To be done.

[0008]   A second aspect of the present invention is a guide roller and a guide post for loading a tape. The slider on the supply side and the slider on the take-up side, which are vertically installed, face each other across the head cylinder. Is installed slidably along the guide groove provided on the chassis. The idler rotates on the loading lever member that receives the driving force for tape loading. Tape for a video cassette recorder that is connected to and driven by tape loading In the loading device, part of the slider is part of the loading lever member. Are located below the base, and at least some of them overlap each other in plan view. The loading lever member is configured so that it does not fall off the slider. Of.

[0009]   In this configuration, the loading lever and slider start loading. At least in the movable range of the slider from the end to the end of loading Part of the slider overlaps in plan view, and a part of the slider is always the loading lever. It is located below the member and part of the loading lever member becomes part of the slider. The loading lever member does not fall off the slider because it is engaged. .

[0010]   A third aspect of the present invention is a tape loader for a video cassette recorder according to the second aspect. In the loading device, the loading lever member is placed outside in the vicinity of the joint with the slider. A protrusion protruding in the direction is formed, and the slider is attached to the lower surface side of the loading lever member. A protruding piece is formed, and at least a part of each of the protruding portion and the protruding piece is formed. From the loading start position of the slider to the loading end position in plan view They are in a positional relationship where they overlap each other.

[0011]   In this configuration, the loading lever member has a fan-shaped protrusion and a slant. At least a part of each of Overlapping in plan view, part of the protruding piece will always be located below the convex part, The loading lever member will not fall off the slider.

[0012]

[Embodiment of device]

  A video cassette recorder equipped with a tape loading device according to an embodiment of the present invention. The coder will be described with reference to the drawings. Figure 1 shows the plane of a video cassette recorder The figure is shown. Video cassette recorder 100 is a loaded video cassette The video / audio signals are recorded / reproduced on the magnetic tape of A head cylinder 3 having a magnetic head 3a for recording / reproducing a video signal, A magnetic tape is provided on the head cylinder 3 and the audio head 4 for recording / reproducing an audio signal. A slider 5 on the supply side and a slider 6 on the winding side for winding and loading Supply-side reel stand 25 and winding-side reel stand for rotating reels of video cassette It is composed of 26 or the like. Is the tape loading device 1 a video cassette? Is a device for pulling out the magnetic tape from the head cylinder 3 and winding it around the slider 5, 6 and a loading lever 7 (see FIG. 2) for driving them Has been done.

[0013]   Sliders 5 and 6 are provided on the chassis 2 at positions facing each other with the head cylinder 3 interposed therebetween. Guide grooves 21 and 22 for guiding are provided. The sliders 5 and 6 are resin It is integrally molded with a molding material, and is fitted into the guide grooves 21 and 22. The magnetic tape is loaded by sliding along 1, 22. Magnetic on sliders 5 and 6 Guide rollers 5a, 6a for pulling out the air tape and guiding it so that it can run, A guide post is provided to align the recording surface of the air tape with the tape running surface of the head cylinder 3. G (posts) 5b and 6b are erected.

[0014]   FIG. 2 shows a schematic configuration of the lower surface of the chassis 2 when loading is completed. . In FIG. 2, a slider 6 on the winding side and a drive mechanism for driving the slider 6 Are not shown. Hereinafter, the slider 5 on the supply side and the drive for driving the slider 5 will be described. The moving mechanism will be described.

[0015]   The slider 5 is attached to the loading lever 7 connected to the lower surface of the chassis 2. Therefore, it is driven and slides along the guide groove 21. The lower surface of the slider 5 is low A boss 50 connected to the ding lever 7 is erected.

[0016]   The loading lever 7 is formed by processing a metal plate into a metal plate. A coupling hole 71 into which the boss 50 is inserted is provided on the end side. Boss 50 connecting hole The slider 5 is rotated to one end side of the loading lever 7 by being inserted into 71. Can be freely combined. The other end of the loading lever 7 is at the tip of the arm member 8. At, the shaft is supported by the support shaft 9. The support shaft 9 is supported by the spring 10. Are biased toward the tip of the arm-shaped member 8.

[0017]   The arm-shaped member 8 has a gear 81 that receives a driving force from the drive transmission gear 12, A rotating shaft 82 is rotatably supported on the lower surface of the chassis 2 to provide a driving means. Mode switching in which driving force is applied from (not shown) to slide on the lower surface of the chassis 2 Drive transmission gear 12 for transmitting the driving force of the lever 11 and the mode switching lever 11 The driving force is transmitted via the motor and the motor is rotationally driven.

[0018]   FIG. 3 and FIG. 4 show the structure of the slider 5 and the loading lever 7 and the connection state. is doing. In FIG. 3, (b) shows a side view from the direction of arrow A in (a). is doing. As described above, the slider 5 is the guide groove provided in the chassis 2. 21 is slidably fitted in the guide roller 5a on the upper surface side of the chassis 2. And the guide posts 5b are erected and supported on the lower surface side of the chassis 2. The boss 50 is connected to the loading lever 7. Shear of slider 5 Support blocks 51, 52, and 53 are provided on the upper surface side of the chassis 2, and support blocks are provided on the lower surface side. A lock 54 is provided. Support blocks 51, 52, 53 and support block When the slider 54 contacts the chassis 2 from above and below, Is maintained. In addition, the support block 54 is provided on the lower surface side of the loading lever 7. A protruding piece 55 that protrudes like an eaves is formed.

[0019]   In the vicinity of the coupling hole 71 of the loading lever 7, a fan-shaped convex portion 72 is formed outward. Is made. The convex portion 72 is not formed over the entire circumference in the vicinity of the coupling hole 71, From the loading start state (the state shown in FIG. 4A) to the loading state After the (state shown in FIG. 4B), the loading end state (shown in FIG. 4C) Shape) within a range where at least a part of the protruding piece 55 overlaps with the protruding piece 55 in plan view. Is made.

[0020]   FIG. 5 shows the supply side loading lever 7 and the winding side loading lever 7b. is doing. In the vicinity of the coupling holes 71, 71b of the loading levers 7, 7b, a convex portion ( Fleshing portions) 72, 72b are formed. As shown in FIG. 2, the supply side guy Since the track of the guide groove 21 and the winding guide groove 22 is different, Whether the arrangement and shape of the drum-shaped member 8 and the winding-side arm-shaped member (not shown) are different The feeding side loading lever 7 and the winding side loading lever 7b are projecting pieces. However, the overlapping range in plan view is different, and the shapes of the convex portions 72 and 72b are As shown in FIG. 5, they will be different from each other.

[0021]   According to the tape loading device 1 configured as described above, the tape is loaded on the slider 5. A part of the protruding piece 55 formed in the shape of an insert is formed in a fan shape on the loading lever 7. Since the loading lever 7 is always located below the convex portion 72, the loading lever 7 is slid. Even when it is about to fall off the lid 5, the protrusion 72 engages with the protruding piece 55. It is possible to prevent the loading lever 7 from falling off.

[0022]   In addition, the convex portion 72 formed in a fan shape and the protruding piece 55 formed in an eaves shape are used. Thus, the positional relationship between the convex portion 72 and the protruding piece 55 described above is low from the start of loading. The slider 5 is surely maintained within its movable range over the end of Therefore, it is possible to reliably prevent the loading lever 7 from falling off the slider 5. Further, since the convex portion 72 is formed in a fan shape, the slider 5 can be moved during the loading operation. Even if the loading lever 7 and the loading lever 7 rotate relatively, the outer edge of the protrusion 72 and the slider 5 The distance to the (support block 54) is always kept constant. Thereby, the convex portion 72 Interference with the slider 5 is avoided, and a smooth loading operation can be performed. Also Since the convex portion 72 is not formed over the entire circumference in the vicinity of the coupling hole 71, It is possible to reduce the flesh of the glever 7 and to manufacture the video cassette recorder. Can be reduced. In addition, a combination of the slider 5 and the loading lever 7 When standing up, it is possible to easily avoid the interference between the convex portion 72 and the protruding piece 55, and The assembly of the loader 5 and the loading lever 7 can be easily performed.

[0023]   The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, the shape of the convex portion 72 is preferably fan-shaped, but Overlapping in at least a part with the projecting piece 55 from the start to the end in plan view There is no particular limitation as long as it has a shape. Similarly, the shape of the protruding piece 55 is not limited to the eaves shape. And the protrusion 72 and at least one portion from the beginning to the end of loading. The shapes are not limited as long as they overlap each other in plan view. In addition, the convex portion 72 and It is possible to reduce the number of loading levers 7 and sliders 5 without providing the protruding pieces 55. Make sure that at least a portion of the loading lever 7 and the slide lever overlap each other in plan view. The Ida 5 may be configured.

[0024]

[Effect of device]

  As described above, according to the invention of claim 1, the slider of the loading operation is Within the movable range, part of the protruding piece formed on the slider in the shape of an eaves Since it is always located below the fan-shaped protrusion on the bar member, Even when the swing lever member is about to fall off the slider, the protrusions It is possible to prevent the loading lever member from falling off by engaging with the protruding piece. Also formed into a fan shape From the beginning of loading by the raised part and the eaves-shaped protruding piece Be sure to maintain the above-mentioned positional relationship between the convex portion and the protruding piece at the end of loading. This ensures that the loading lever member will not fall off the slider. Wear. In addition, since the protrusions are fan-shaped, the slider Even if the loading lever member rotates relative to the The distance between the slider and the slider is always constant, which avoids interference between the protrusion and the slider. This enables smooth loading operation.

[0025]   According to the invention of claim 2, within the movable range of the slider in the loading operation. , Part of the slider will always be located below the loading lever member. Thus, the loading lever member can be prevented from falling off the slider.

[0026]   According to the invention of claim 3, within the movable range of the slider in the loading operation. , A part of the protruding piece formed on the slider is formed on the loading lever member Since the loading lever member is always located below the protrusion, the loading lever member Can be prevented from falling off.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a video cassette recorder equipped with a tape loading device according to an embodiment of the present invention.

FIG. 2 is a bottom view of the chassis of the recorder.

FIG. 3A is a side view of the same device, and FIG. 3B is a side view from the direction of arrow A in FIG.

4A is a bottom view of the apparatus at the start of loading, FIG. 4B is a bottom view of the apparatus during loading, and FIG. 4C is a bottom view of the apparatus at the end of loading.

5A is a bottom view of a loading-side loading lever, and FIG. 5B is a bottom view of a winding-side loading lever.

[Explanation of symbols]

1 Tape loading device 2 chassis 3 head cylinder 4,5 slider 5a, 6a Guide roller 5b, 6b guide post 7 Loading lever (loading lever member) 21,22 guide groove 55 protruding piece 72 convex 100 video cassette recorder

Claims (3)

[Scope of utility model registration request] 1. A guide-side slider provided with a guide roller and a guide post for tape loading is provided along a guide groove provided on a chassis so as to face each other with a head cylinder interposed therebetween. In a tape loading device of a video cassette recorder in which a slider is slidably mounted, and which is rotatably coupled to a loading lever member that receives a driving force for tape loading on a lower surface side of a chassis, and is driven for tape loading, the loading lever An outwardly projecting convex portion is formed in the shape of a fan in the vicinity of the coupling portion of the member with the slider, and an eave-shaped projecting piece that projects toward the lower surface side of the loading lever member is formed on the slider. And at least a part of each of the protruding pieces starts loading the slider. A tape loading device for a video cassette recorder, wherein the loading lever member is configured so as not to fall off from the slider in a positional relationship where the loading lever member and the loading end position overlap each other in a plan view. 2. A slider on a supply side and a slider on a winding side, each of which is provided with a guide roller and a guide post for tape loading, are provided along a guide groove provided on the chassis so as to face each other with the head cylinder interposed therebetween. In a tape loading device of a video cassette recorder in which a slider is slidably provided and is rotatably coupled to a loading lever member that receives a driving force for tape loading, and a tape loading is performed, a part of the slider is A video cassette, which is located below a part of the loading lever member and has a positional relationship in which at least parts of the loading lever member overlap each other in plan view, and the loading lever member is configured not to fall off from the slider. Tape loading device for recorders. 3. A protrusion protruding outward is formed in the vicinity of a coupling portion of the loading lever member with the slider, and a protrusion protruding toward the lower surface of the loading lever member is formed on the slider. 3. The video cassette according to claim 2, wherein at least a part of each of the convex portion and the protruding piece is in a positional relationship of overlapping in a plan view from a loading start position to a loading end position of the slider. Tape loading device for recorders.