KR20040076082A - Apparatus for guiding tape for tape rocorder - Google Patents

Abstract

PURPOSE: A tape guide device for a tape recorder is provided to support upper/lower ends of a magnetic tape, which runs via a contacted surface of a capstan shaft and a pinch roller, by using guide projections. CONSTITUTION: A guide unit(200) restrains a magnetic tape from moving in vertical direction while running. A capstan shaft(170) is contacted with the magnetic tape on an outer circumference while loading the magnetic tape, and is rotatively installed at deck chassis(110). When the magnetic tape runs, the capstan shaft(170) is rotated, to connect a lower end thereof with a capstan motor(175). The magnetic tape is pressed to the capstan shaft(170) by a pinch roller(195). The guide unit(200) is fixed to a lower side of the capstan shaft(170).

Description

Tape guide device for tape recorder {Apparatus for guiding tape for tape rocorder}

The present invention relates to a tape recorder, and more particularly, to a tape guide device for guiding a magnetic tape running inside a deck.

In general, a tape recorder having a deck mechanism such as a video tape recorder (VTR) or a camcorder (corder) drives a magnetic tape along a predetermined path formed inside the deck, and transmits video / audio data to the magnetic tape. It is a device to record / play back.

1 shows an example of a moving deck mainly employed in a camcorder among the decks of a tape recorder as described above. Referring to this, the deck 100 of the conventional tape recorder includes a deck chassis 110, a head drum 120, and a tape guide device. In the case of the moving deck 100 as shown, the deck chassis 110 is slidably coupled to the main chassis 113 and the main chassis 113, so that the main chassis during loading / unloading of the magnetic tape T is shown. And a sub chassis 115 that slides on 113.

The tape guide device draws the magnetic tape from the tape cassette (not shown) seated on the reel drive unit 130 when the magnetic tape is loaded, closely adheres to the head drum 120, and is in close contact with the head drum 120. It is for guiding a magnetic tape running in a state. To this end, a conventional tape guide device includes a pair of pole base assembly 150, a tension pole assembly 160, a capstan shaft 170, a pinch roller assembly 190, and a review poll assembly. assembly;

Among these tape guide devices, the review pole assembly 180 is for preventing the up and down flow and twisting of the magnetic tape traveling through the contact surface of the pinch roller 195 and the capstan shaft 170 when the magnetic tape T is traveling. To this end, the review pole assembly 180 includes a review arm 185 rotatably installed on the sub chassis 115, and a pawl member 181 fixed to an upper surface of the review arm 185.

In the conventional tape recorder having the review pole assembly 180, the review pole assembly 180 may be configured such that the review pole 181 can be moved inside the deck 100 in response to magnetic tape loading / unloading. 100, and the driving mechanism (not shown) for moving the review pole 181 is further required, and the manufacturing process is complicated and the manufacturing process is complicated.

In particular, in recent years in which a smaller size of the deck 100 is required due to a smaller and lighter tape recorder, the review pole assembly 180 which complicates the structure of the deck 100 is further required. There is an urgent need for a technology that can more easily guide the running of magnetic tape.

The present invention was devised to solve the above problems, and for providing a tape recorder of a cheaper and simpler structure, the tape recorder having an improved structure to suppress vertical flow of magnetic tape even when the review pole assembly is deleted. It is an object to provide a tape guide device.

1 is a plan view showing the inside of the deck of a conventional tape recorder,

Figure 2 is a perspective view showing the inside of the deck of the tape recorder according to an embodiment of the present invention,

3 is a perspective view showing an extract of the capstan shaft of FIG.

Figure 4 is a perspective view showing the inside of the deck of the tape recorder according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

200: Deck 110: Deck Chassis

113: main chassis 115: sub chassis

120: head drum 170: capstan shaft

175: capstan motor 179, 210: capstan holder

195: pinch roller 200, 250: guide means

220, 240: guide protrusion 230: cable holder

T: Magnetic Tape

The tape guide device for a tape recorder according to the present invention for achieving the above object is provided with a capstan shaft rotatably installed on the deck chassis to guide the traveling of the magnetic tape compressed by the pinch roller, and the driving path of the magnetic tape. Guide means fixed to the deck chassis to be disposed on the downstream side of the capstan shaft according to the guide, and guide means for guiding the upper and lower ends of the magnetic tape to suppress the magnetic tape flows up and down along the capstan shaft when the magnetic tape is running Characterized in that it comprises a.

According to this, it is possible to delete the review pole assembly which is movable on the deck, it is possible to provide a cheaper and simpler tape recorder.

According to a preferred embodiment of the present invention, the guide means, a support member protruding from the bottom surface of the deck chassis, a pair of protruding from the one side of the support member in a cantilever shape but spaced apart from each other at predetermined intervals And a guide protrusion of the magnetic tape, and when the magnetic tape travels, the magnetic tape must travel through a gap formed between the pair of guide protrusions.

Here, the support member is preferably a capstan holder fixed to the deck chassis to support the capstan shaft rotatably.

According to another embodiment of the present invention, the support member is installed on an upper portion of the capstan shaft to support a cable for applying a current signal and / or a control signal to the capstan motor, so that the cable is a driving path of the magnetic tape. It is preferable that it is a cable holder which suppresses invasion into the.

In this case, the support member and the pair of guide protrusions are preferably integrally formed, and each side of the guide protrusions facing the magnetic tape is formed to be inclined when the magnetic tape is running, between the guide protrusions. It is more preferable that the inlet of the gap to be formed is extended than the inner side.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, in describing the embodiments of the present invention, components having the same configuration and function as those of the conventional tape recorder shown and described with reference to FIG. 1 are referred to with the same reference numerals as before. Detailed description thereof will be omitted.

FIG. 2 illustrates the inside of the deck 200 of the tape recorder according to the first embodiment of the present invention. Referring to this, the tape guide device for the tape recorder according to the first embodiment of the present invention includes a capstan shaft ( 170 and guide means 200 for suppressing the magnetic tape T from flowing in the vertical direction when the magnetic tape T travels.

The capstan shaft 170 is a place where the magnetic tape is in contact with the outer circumferential surface of the magnetic tape T when the magnetic tape T is loaded. The capstan shaft 170 is rotatably installed in the deck chassis 110 so as to rotate while the magnetic tape T is driven. The lower end is connected to the capstan motor 175. For reference, the magnetic tape T is compressed to the capstan shaft 170 by the pinch roller 195 moving on the deck chassis 110 when the magnetic tape T is loaded.

The guide means 200 is to prevent the phenomenon that the magnetic tape (T) flows or folds in the axial direction of the capstan shaft 170 while the magnetic tape (T) is in contact with the capstan shaft 170 when the magnetic tape (T) travels. It is fixedly arranged on the downstream side of the capstan shaft 170 along the travel path (A) of the magnetic tape (T).

The guide means 200 according to the present embodiment includes a capstan holder 210 fixed on the deck chassis 110, that is, the main chassis 113 in a state in which the capstan shaft 170 is rotatably supported, The capstan holder 210 includes a pair of guide protrusions 220 protruding in a state spaced apart from each other in a cantilever shape from one side. That is, in this embodiment, the capstan holder 210 is used as a supporting member for supporting the guide protrusions 220. At this time, it is preferable that the capstan holder 210 and the pair of guide protrusions 220 are integrally formed so as to facilitate their manufacture.

As shown in FIG. 3, the pair of guide protrusions 220 are formed of the magnetic tape T that travels through the gap D formed between the guide protrusions 220 when the magnetic tape T travels. Support the top and bottom contact. To this end, the pair of guide protrusions 220 according to the present embodiment have the same width D as the width W (see FIG. 2) between the upper and lower ends of the magnetic tape T running therein when the magnetic tape travels. ) Is protruded into a shape that can be formed.

In addition, in the present exemplary embodiment, each of the side surfaces 223 and 225 of the guide protrusions 220 facing each other is formed to be inclined so that the inlet of the gap D is extended from the inner side. According to this, it is possible to prevent the damage of the magnetic tape (T) entering between the gap (D) when loading the magnetic tape (T).

In the present exemplary embodiment, although the guide protrusions 220 have been described as limited to protrude from the capstan holder 210, the present invention is not limited thereto. That is, the guide protrusions 220 can suppress the up and down flow of the magnetic tape T when the magnetic tape T travels downstream of the capstan shaft 170 along the travel path A of the magnetic tape T. If only formed so that the support member (not shown) for supporting the guide protrusions 220 may be installed in various shapes at any position on the deck chassis (110). Of course, the shape of the guide protrusions 220 may be variously modified as long as the above functions can be satisfied.

Referring to FIG. 4, the guide means 250 according to another embodiment of the present invention uses a cable holder 230, which is selectively installed on the capstan holder 210, as the support member. The cable holder 230 supports a cable C for applying a current signal and / or a control signal to the capstan motor 175 to suppress the cable C from entering the traveling path A of the magnetic tape. It is for. In this embodiment, the pair of guide protrusions 240 protrude from one side of the cable holder 230. Of course, these guide protrusions 240 protrude from the cable holder 230 but are disposed on the downstream side of the capstan shaft 170 along the traveling path A of the magnetic tape T to move up and down the magnetic tape. It should be possible to suppress it.

In this configuration, the guide means 250 is formed only by the case where the cable holder 230 is mounted inside the deck 200. In addition, the guide means may include the magnetic tape when the magnetic tape T is traveling. If the upper and lower ends of the magnetic tape can be guided to the downstream side of the capstan shaft 170 along the driving path (A) of (T) and can be fixedly installed in the deck 200, the configuration may be possible in any form. will be. At this time, by forming one side of each of the guide projections 240 facing each other as in the case of the embodiment shown and described with reference to Figures 2 and 3 above that the magnetic tape (T) is damaged when entering the magnetic tape (T). Of course, it can prevent.

According to the present invention as described above, since the upper and lower ends of the magnetic tape running through the contact surface of the capstan shaft and the pinch roller are supported by the guide protrusions, the magnetic tape is moved along the axial direction of the capstan shaft when the magnetic tape is running. The flow can be suppressed.

Accordingly, it is possible to eliminate the installation of the conventional review pole assembly, thereby facilitating the manufacture of the tape recorder and reducing the manufacturing cost.

While the invention has been shown and described with respect to preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that various changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

Claims (6)

A capstan shaft rotatably installed in the deck chassis to guide the running of the magnetic tape compressed by the pinch roller; And The magnetic tape is fixed to the deck chassis so as to be disposed downstream of the capstan shaft along the traveling path of the magnetic tape, and the magnetic tape is configured to suppress the magnetic tape from flowing upward and downward along the capstan shaft when the magnetic tape travels. And a guide means for guiding the upper and lower ends of the tape recorder. The method of claim 1, wherein the guide means, A support member protruding from the bottom surface of the deck chassis; And And a pair of guide protrusions protruding from the one side of the support member in a cantilever shape, the protrusions being formed to be spaced apart from each other by a predetermined interval. And the magnetic tape is driven through a gap formed between the pair of guide protrusions when the magnetic tape is running. The method of claim 2, And the support member is a capstan holder fixed to the deck chassis to rotatably support the capstan shaft. The method of claim 2, wherein the support member, A tape holder installed on an upper portion of the capstan shaft to support a cable for applying a current signal and / or a control signal to the capstan motor, thereby preventing the cable from entering the traveling path of the magnetic tape; Tape guide device for recorders. The method according to any one of claims 2 to 4, Tape support apparatus for a tape recorder, characterized in that the support member and the pair of guide protrusions are formed integrally. The method of claim 5, wherein Tape guide apparatus for a tape recorder, characterized in that each side of the guide projections facing the magnetic tape is formed to be inclined when the magnetic tape is running, so that the inlet of the gap formed between the guide projections is extended from the inside.