JP3095647U - Video cassette recorder - Google Patents

Abstract

(57) [Summary] In a video cassette recorder, a tape guide can be reduced in size and cost can be reduced. SOLUTION: A tape guide 5 is formed by cutting a part of a side plate 1d of a chassis 1 and bending the tape guide 5 so as to have a space between the tape guide 5 and a bottom plate 1a of the chassis 1.
A guide 52 is attached to the tip of the bent portion 51 and guides the movement of the magnetic tape by sliding the magnetic tape. The guide portion 52 is formed of plastic, and a hook portion 52c for attaching the guide portion 52 to the bent portion 51 is integrally formed. With such a configuration, the tape guide 5 can be configured without erecting a post on the bottom plate 1a, and a space for erecting the post is not required. Further, the tape guide 5 can be easily manufactured simply by bending the side plate 1d to form the bent portion 51 and attaching the guide portion 52 to the bent portion 51.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention records and reproduces video and audio on the magnetic tape of a video cassette. U video cassette recorder.

[0002]

[Prior art]

  Traditionally, video cassette recorders have been slid along the bottom of the chassis. The magnetic tape is pulled out from the video cassette by And the tension post that rotates around the bottom of the chassis. Tension the magnetic tape between the ding post and the video cassette It has become. Also, the video cassette recorder has a tension post and a video A tape guide for guiding the running of the magnetic tape between the set and the set is provided. Te The guide has a cylindrical post standing on the bottom of the chassis. Guide the running of the magnetic tape by sliding the magnetic tape on the circumferential side of the post. There is. This tape guide plugs the post into the bottom of the chassis, It is fixed to the bottom of the chassis by caulking the post base end protruding to the back side of the Mounted.

[0003]   Also, support for the guide block of the rotary head drum and the tape pull-out guide member. Regarding the structure, bend the guide block of the tape pull-out guide member from the support base It is known that a support piece that is rubbed upright is used to fix it (for example, , Patent Document 1).

[0004]

[Patent Document 1]           JP-A-6-215453

[0005]

[Problems to be solved by the device]

  However, in the conventional video cassette recorder described above, the tape guide Since a cylindrical post was erected on the bottom of the chassis, the post is erected. Space is needed, which is a factor in increasing the size of the video cassette recorder. I was there. In addition, the post is a separate part, and the workability to erect the post is poor. , Was a factor of high cost. The contents disclosed in the above-mentioned Patent Document 1 are applied. Even if it does, the above problems cannot be solved.

[0006]   The present invention has been made to solve the above-mentioned problems, and the side surface of the chassis is A guide part provided with a bent part and guiding the running of the magnetic tape at the bent part. By providing the video guide, the tape guide can be downsized and the cost can be reduced. The purpose is to provide a set recorder.

[0007]

[Means for Solving the Problems]

  In order to achieve the above object, the invention of claim 1 is a rotary drum having a magnetic head. And wrap the magnetic tape pulled out from the video cassette around the rotating drum. Guiding the loading post, the loading post and the video cassette. And a tension post that applies tension to the magnetic tape between the Guides the magnetic tape between the option post and the video cassette. Video cassette recorder equipped with a tape guide and a chassis that supports the above-mentioned parts. In the feeder, the tape guide is formed by cutting out a part of the side surface of the chassis, Inward from the side of the chassis with a space between it and the bottom of the chassis A bent part bent so as to project in the direction, and attached to the tip of this bent part, The magnetic tape consists of a guide part that slides and guides the running of the magnetic tape. The guide part is made of plastic, and the guide part is formed into the bent part. The hook portion for attaching to is integrally formed.

[0008]   In this configuration, the tape guide is formed by bending a part of the side surface of the chassis. The guide part that guides the running of the magnetic tape is attached to the tip of the barb. ing. This eliminates the need for standing posts as in the past, The space for standing up is unnecessary and the size can be reduced. Also, the tape guide Easy to make by simply attaching the guide part to the bent part where the side surface of the chassis is bent. Since it can be manufactured, workability for providing the tape guide is improved. Moreover, the bent part Is bent so that there is a space between it and the bottom of the chassis. By effectively utilizing the space of other parts, the degree of freedom in designing other parts etc. is improved. . In addition, the guide part is made of plastic and is designed to be attached to the bent part. Since the hook portion is integrally formed, the guide portion can be easily attached to the bent portion. The workability is further improved.

[0009]   According to another aspect of the present invention, a rotary drum having a magnetic head and a video cassette are pulled. Loading that guides the ejected magnetic tape to be wound around the rotating drum A post and the magnetic tape between the loading post and the video cassette. The tension post that applies tension to the A tape guide for guiding the running of the magnetic tape between the cassette and A videocassette recorder having a chassis supporting the tape, The guide projects a part of the side surface of the chassis inward from the side surface of the chassis. And the magnetic tape that is provided on this bending part and slides on it. And a guide portion for guiding the running of the magnetic tape.

[0010]   In this configuration, the tape guide is formed by bending a part of the side surface of the chassis. The barb is provided with a guide part for guiding the running of the magnetic tape. . For this reason, it is not necessary to erect the post as in the conventional case, and the post is erected. It is possible to reduce the size because no space is required. In addition, the tape guide is It can be easily manufactured by providing a guide part on the bent part where a part of the side surface is bent. The workability for providing the tape guide is improved.

[0011]   The invention of claim 3 is the video cassette recorder according to claim 2, wherein: The bent portion is bent so that there is a space between the bent portion and the bottom surface of the chassis. There is something.

[0012]   In this configuration, the bend has a space between it and the bottom of the chassis. Since it is bent at The degree of freedom in designing products etc. is improved.

[0013]

[Embodiment of device]

  Embodiments embodying the present invention will be described below with reference to the drawings. Figure 1 and 2 and FIG. 2, the video cassette recorder 100 is a magnetic tape recorder of the video cassette C. The video / audio is recorded / reproduced with respect to the loop T. This video cassette The recorder 100 has a chassis 1 and a video head (magnetic head) 2a. The rolling drum 2, the full-width erasing head 2b, the voice / control head 2c, the low Ding post 3, tension post 4, tape guide 5, capstan 6, a pinch roller 7, a review post 8, and a reel stand 9.

[0014]   The chassis 1 includes a bottom plate 1a, a front plate 1b, a rear plate 1c, side plates 1d and 12e, And is formed by bending a metal plate. The rotating drum 2 is The head 2a is rotated along the outer peripheral surface of the rotary drum 2, and the motor (not shown) The rotation is driven in the circumferential direction around the rotary shaft 21 as shown in FIG. This rotating drum 2 Mounted on the bottom plate 1a of the chassis 1 with the rotating shaft 21 tilted at a predetermined angle. It is attached. The video head 2a records the video signal on the magnetic tape T. It is used for reproduction and is attached to the rotary drum 2 to rotate the rotary drum 2. Thus, the rotary drum 2 is rotated along the outer peripheral surface thereof. The full width erasing head 2b is magnetic When the video signal is recorded on the tape, it is already recorded on the magnetic tape T. It erases signals and is attached to the bottom plate 1a of the chassis 1. voice The control head 2c records / reproduces audio signals on / from the magnetic tape T and It records and reproduces control signals and is installed on the bottom plate 1a of the chassis 1. It is attached.

[0015]   The loading post 3 pulls out the magnetic tape T from the video cassette C, and It guides the tape T so that it is wound around the rotary drum 2. It has a ding post 3a and a winding side loading post 3b. Supply side The holding post 3a is a vertical post 31a that is substantially perpendicular to the bottom plate 1a of the chassis 1. And the tilt post 32a tilted at substantially the same angle as the tilt of the rotary shaft 21 of the rotary drum 2. Have These vertical posts 31a and inclined posts 32a are the bottom of the chassis 1. The slide that slides along the loading groove 33a formed in the face plate 1a. It is erected on the da 34a. In addition, the winding side loading post 3b is The vertical post 31b and the inclined post 32b are provided in the same manner as the trading post 3a. There is. The vertical post 31b and the inclined post 32b are provided on the bottom plate 1 of the chassis 1. a slider 34 that slides along the loading groove 33b formed in a. It is erected on b.

[0016]   The supply side loading post 3a and the winding side loading post 3b are The sliders 34a and 34b move from the lower end position of the loading grooves 33a and 33b to the upper end position. The video cassette set on the reel stand 9 is slid toward the stand. The magnetic tape T is pulled out from the cartridge C, and the sliders 34a and 34b are loaded into the loading groove 33. The magnetic tape T is wound around the rotating drum 2 by reaching the upper end positions of a and 33b. wear.

[0017]   The tension post 4 includes a supply side loading post 3a and a video cassette C. Tension is applied to the magnetic tape T between the bottom plate 1a of the chassis 1. Is erected on a tension lever 42 that is rotatably supported about a shaft portion 41. ing. The tension post 4 is formed by rotating the tension lever 42. Of the magnetic tape T between the loading side loading post 3a and the video cassette C. The magnetic tape T is pushed so as to bypass the traveling route, and the magnetic tape T is Apply tension.

[0018]   The tape guide 5 is a magnetic tape between the tension post 4 and the video cassette C. It guides the traveling of the chassis T, and bends a part of the side plate 1d of the chassis 1. The bent portion 51 and the magnetic tape T provided on the bent portion 51 and slid on the magnetic tape. And a guide portion 52 that guides the traveling of the loop T. This tape guy Details of mode 5 will be described later.

[0019]   The capstan 6 applies a pulling torque to the magnetic tape T to run the magnetic tape T. It is made of a shaft-shaped member that is perpendicular to the bottom plate 1a of the chassis 1. . This capstan 6 is located on the back side of the bottom plate 1a of the chassis 1 about its axis. It is driven to rotate by a capstan motor (not shown) provided, and its rotational force is magnetized. The magnetic tape T is made to travel and the magnetic tape T is run. The pinch roller 7 is capped The magnetic tape T is run in cooperation with the stun 6, and is the bottom of the chassis 1. Provided on a pinch arm 72 rotatably supported on the face plate 1a about a shaft 71. Has been. This pinch roller 7 is rotated by the pinch arm 72, The magnetic tape T is pressed against the capstan 6 so that the capstan 6 is rotated. The rolling force is transmitted to the magnetic tape T so that the magnetic tape T runs.

[0020]   The review post 8 is a magnetic tape between the capstan 6 and the video cassette C. The tension is applied to T, and the shaft 81 is centered on the bottom plate 1a of the chassis 1. Is vertically erected on a review arm 82 that is rotatably supported. This review With the review arm 82 pivoting, the post 8 and the capstan 6 and the post 8 are rotated. The magnetic tape so as to bypass the running path of the magnetic tape T with the deo cassette C Press T to apply tension to the magnetic tape T.

[0021]   The reel stand 9 rotates the reels of the video cassette C, and is provided on the supply side reel. It has a reel base 9a and a winding side reel base 9b. These supply side reel stand 9a The reel side 9b on the take-up side transmits various drives by the power of the capstan motor described above. The reel of the video cassette C is rotated by a mechanism (not shown) and is rotated by the rotating force. To rotate.

[0022]   The video cassette C is carried by a cassette plate (not shown) and is reeled. Set to 9. The sliders 34a and 34b, the tension lever 42, and the pin The video arm C of the main arm 72 and the review arm 82 is set on the reel stand 9. After being installed, the motor mounted on the back side of the bottom plate 1a of the chassis 1 is slidable. Depending on the slide operation of the drive lever (not shown), various drive transmission mechanisms (not shown) And be operated appropriately. The mode lever moves the pulley 91 by the driving force of the motor 90. , The belt 92, and the pulley 93.

[0023]   With such a configuration, the magnetic tape of the video cassette C set on the reel stand 9 is The loop T is pulled out from the video cassette C by the loading post 3 and is rotated. Guided to be wound around the ram 2 and loaded by the tension post 4. Tension is applied between the post 3a and the video cassette C. In addition, the magnetic The pull T is pressed against the capstan 6 by the pinch roller 7, The tension is applied between the capstan 6 and the video cassette C by the gutter 8. . At this time, the magnetic tape T is brought into contact with the guide portion 52 of the tape guide 5 and is guided. Contact the full width erasing head 2b and the voice / control head 2c. Is set Then, the magnetic tape T is run by the rotational driving of the capstan 6. Recording / playback of video / audio, fast forward playback, reverse playback, and fast playback of the magnetic tape T. Various operations such as feeding and rewinding are performed. In addition, the magnetic post by the tension post 4 The tension on the loop T is for recording / playing video / audio, fast-forward playback, and reverse-back playback. It is applied at the time of work and released at the time of fast-forward / rewind operation of the magnetic tape T. Also, The tension on the magnetic tape T by the review post 8 is fast forward of the video / audio. It is applied during raw and reverse playback operations, and released during other operations.

[0024]   Next, the tape guide 5 will be described. 3 and 4 (a) (b) (c ), The tape guide 5 is formed by bending a part of the side plate 1d of the chassis 1. It is composed of a barbed portion 51 and a guide portion 52 provided on the bent portion 51. The bent portion 51 is formed by cutting out a part of the side surface plate 1d of the chassis 1 to form a bottom surface of the chassis 1. With a space between the side plate 1d of the chassis 1 and inward projection Is formed by bending. The guide portion 52 is attached to the bent portion 51. A mounting hole 52a is provided for removing. In addition, the side plate 1d of the chassis 1 A cassette guide groove 95 for guiding the above-mentioned cassette plate is formed. . That is, the side plate 1d of the chassis 1 plays a role as a cassette guide portion. The cassette guide portion is provided with the bent portion 51 of the tape guide portion 5. It

[0025]   The guide portion 52 is attached to the tip of the bent portion 51. This guide part 52 , Which is made of plastic and has a substantially circular arc shape on which the magnetic tape T slides. To the lower side of the magnetic tape T (the bottom plate 1a side of the chassis 1). It has a tape receiving portion 52b formed of a step for preventing the shift. Also Guy The pair of hook portions 52 for attaching the guide portion 52 to the bent portion 51 c and 52d are integrally formed of plastic. Hooks 52c, 52 d is approximately the same as the thickness of the bent portion 51, and is substantially rearward of the tape sliding surface 52a. It is extended in parallel. Attaching the bent portion 51 to the inside of the hook portions 52c and 52d Protrusions 52e and 52f for engaging with the hole 51a are provided. Guide part 5 2 is the tip of the bent portion 51 so that the bent portion 51 is sandwiched by the hook portions 52c and 52d. By inserting from the side, the protrusions 52e and 52f are engaged with the mounting hole 51a, It is fixed and attached to the tip of the barb 51.

[0026]   According to the video cassette recorder 100 having the above structure, the tape guide 5 is A bent portion 51 is formed by bending the side plate 1d of the chassis 1, and a magnetic tape is formed on the bent portion 51. A guide portion 52 that guides the traveling of the loop T is attached and configured. Sanawa Then, the tape guide 5 is constructed without the posts standing on the bottom plate 1a of the chassis 1. Is made. Moreover, the bent portion 51 has a space between it and the bottom plate 1a of the chassis 1. Since it is bent in a state where the tension lever 42 is bent, The space under the bent part 51 can be used effectively, such as being able to rotate to the bottom. The degree of freedom in designing parts is improved. Also, the guide part 52 is attached to the bending part 51. The hook portions 52c and 52d for forming are integrally formed of plastic. Therefore, the guide portion 52 can be easily attached to the bent portion 51.

[0027]   The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the above embodiment, the guide portion 52 has the hook portions 52c and 52d. Instead of being formed, it may be attached to the bent portion 51 with an adhesive or the like.

[0028]

[Effect of device]

  As described above, according to the invention of claim 1, the tape guide is provided on the side surface of the chassis. Since it consists of a bent part that is bent and a guide part attached to this bent part, There is no need to erect posts as in the past, which allows for miniaturization and test The workability for providing the loop guide is improved, and the cost can be reduced. Moreover, bending Since the part is folded with a space between it and the bottom of the chassis, This space enhances the degree of freedom in design, further downsizing and improving workability. This leads to further cost reduction. In addition, the guide part has a hook for attaching to the bent part. The work part is integrally formed, which improves workability and further reduces costs. Get up.

[0029]   According to the invention of claim 2, the tape guide has a bent portion formed by bending the side surface of the chassis. And because it consists of a guide part provided in this bent part, the post can be This eliminates the need to stand upright, which enables downsizing and the provision of a tape guide. Workability is improved and cost can be reduced.

[0030]   According to the invention of claim 3, the bent portion has a space between the bent portion and the bottom surface of the chassis. Since it is bent in the state, this space improves the design freedom, The size is reduced and the workability is improved, leading to further cost reduction.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a video cassette recorder according to an embodiment of the present invention when a video cassette is not set.

FIG. 2 is a plan view showing a schematic configuration of the video cassette recorder with a video cassette set.

FIG. 3 is a partially enlarged perspective view showing a schematic configuration of a tape guide of the video cassette recorder.

FIG. 4A is a perspective view showing a structure of the tape guide before the guide part is attached to the bent part, FIG. 4B is a plan view of the same, and FIG. 4C is a view showing the guide part attached to the bent part. The perspective view of a state.

[Explanation of symbols]

1 chassis 1a Bottom plate 1b Front plate 1c Rear plate 1d, 1e Side plate 2 rotating drums 2a Video head (magnetic head) 3 loading posts 3a Supply side loading post 3b Winding side loading post 4 Tension post 5 Tape guide 6 capstans 7 pinch rollers 8 Review posts 9 reel stand 9a Supply side reel stand 9b Take-up reel stand 51 Bent part 51a mounting hole 52 Guide 52a Tape sliding surface 52b Tape receiving part 52c, 52d Hook part 52e, 52f Protrusions 52e, 52f 100 video cassette recorder C video cassette T magnetic tape

Claims (3)

[Scope of utility model registration request] 1. A rotating drum having a magnetic head, a loading post for guiding a magnetic tape drawn from a video cassette to be wound around the rotating drum, and a tension on the magnetic tape between the loading post and the video cassette. And a tape guide for guiding the running of the magnetic tape between the tension post and the video cassette,
In a video cassette recorder provided with a chassis supporting each of the parts, the tape guide is formed by cutting out a part of a side surface of the chassis so that there is a space between the tape guide and the bottom surface of the chassis. The bending part is bent so as to project inward, and the guide part is attached to the tip of the bending part and guides the running of the magnetic tape by sliding the magnetic tape. The guide part is made of plastic. Has been formed,
A video cassette recorder, wherein a hook portion for attaching the guide portion to the bent portion is integrally formed. 2. A rotating drum having a magnetic head, a loading post for guiding a magnetic tape drawn from a video cassette to be wound around the rotating drum, and a tension on the magnetic tape between the loading post and the video cassette. And a tape guide for guiding the running of the magnetic tape between the tension post and the video cassette,
In a video cassette recorder provided with a chassis supporting each of the parts, the tape guide includes a bent part formed by bending a part of a side surface of the chassis so as to project inward from the side surface of the chassis, and the bent part. A video cassette recorder, comprising: a guide portion which is provided and which guides the magnetic tape running by sliding the magnetic tape. 3. The video cassette recorder according to claim 2, wherein the bent portion is bent so as to have a space between the bent portion and a bottom surface of the chassis.