KR200143769Y1 - Pinch roller assembly or a tape recorder - Google Patents

Pinch roller assembly or a tape recorder Download PDF

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Publication number
KR200143769Y1
KR200143769Y1 KR2019960010153U KR19960010153U KR200143769Y1 KR 200143769 Y1 KR200143769 Y1 KR 200143769Y1 KR 2019960010153 U KR2019960010153 U KR 2019960010153U KR 19960010153 U KR19960010153 U KR 19960010153U KR 200143769 Y1 KR200143769 Y1 KR 200143769Y1
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KR
South Korea
Prior art keywords
sleeve
stopper
pinch roller
roller assembly
tape recorder
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KR2019960010153U
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Korean (ko)
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KR970059677U (en
Inventor
구연충
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전주범
대우전자주식회사
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Priority to KR2019960010153U priority Critical patent/KR200143769Y1/en
Publication of KR970059677U publication Critical patent/KR970059677U/en
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Publication of KR200143769Y1 publication Critical patent/KR200143769Y1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

본 고안은 테이프 레코더의 개선된 핀치롤러 조립체를 개시한다.The present invention discloses an improved pinch roller assembly of a tape recorder.

종래에는 베어링을 지지하는 스토퍼가 단순히 슬리브의 내주에 압입되는 구성이었으므로 동작시 슬리브와의 열 변형 차이에 의해 이탈되는 문제가 있었다.In the related art, the stopper supporting the bearing was simply press-fitted into the inner circumference of the sleeve, so that there was a problem that the stopper was released due to a difference in thermal deformation with the sleeve during operation.

본 고안에서는 슬리브의 내주에 고정홈을 형성하고 스토퍼의 외주에 슬리브의 고정홈에 걸림돌기를 형성하여, 동작시 양자간에 열변형 차이가 발생되더라도 슬리브부로부터의 스토퍼의 이탈이 방지되도록 하였다.In the present invention, the fixing groove is formed on the inner circumference of the sleeve and the locking protrusion is formed on the fixing groove of the sleeve on the outer circumference of the stopper to prevent the departure of the stopper from the sleeve even if a thermal deformation difference occurs between the two.

Description

테이프 레코더의 핀치롤러 조립체Pinch Roller Assembly of Tape Recorder

제1도는 일반적인 테이프레코더의 주행계를 개략적으로 보인 평면도.1 is a plan view schematically showing a traveling system of a general tape recorder.

제2도는 종래의 핀치롤러 조립체를 보인 단면도.2 is a cross-sectional view showing a conventional pinch roller assembly.

제3도는 본 고안에 의한 핀치롤러 조립체를 보인 단면도이다.3 is a cross-sectional view showing a pinch roller assembly according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 슬리브(sleeve) 11a : (슬리브의) 멈춤턱11: sleeve 11a: stopper

11b : (슬리브의) 고정홈 12 : 핀치롤러(pinch roller)11b: fixing groove 12: pinch roller

13 : 베어링(bearing) 14 : 스토퍼 (stopper)13: bearing 14: stopper

14a : (스토퍼의) 걸림돌기 L : 핀치레버(pinch lever)14a: Stopping protrusion (of stopper) L: pinch lever

P : (핀치레버의) 포스트(post)P: post

본 고안은 테이프 레코더(tape recoder)에 관한 것으로서, 더 상세하게는 캡스턴 (capstan) 축과 함께 테이프(tape)를 정속 주행시키는 핀치롤러 조립체 (pinch roller assembly)에 관한 것이다.The present invention relates to a tape recorder, and more particularly, to a pinch roller assembly for driving a tape at a constant speed with a capstan axis.

비디오 카세트 레코더(VCR)나 캠코더(camcorder) 등과 같은 테이프 레코더는 기록매체인 테이프를 데크(deck)상의 소정 주행 경로를 따라 주행시키면서 이에 영상 및 음성신호를 기록하거나 또는 기록된 신호를 재생하는 장치이다.A tape recorder such as a video cassette recorder (VCR) or a camcorder (corder) is a device for recording video and audio signals or reproducing recorded signals while driving a tape, which is a recording medium, along a predetermined travel path on a deck. .

제1도에서, 테이프(T)는 데크(D)의 로딩 홀(loading hole; 도시하지 않음)을 따라 헤드드럼(head drum; HD)의 양측으로 이동하는 폴베이스(pole base; PB)에 의해 카세트(cassette; C)로부터 인출되어 그 주행경로 상으로 이동된 뒤, 핀치롤러 조립체(R)의 회전 이동에 의해 캡스턴모터(capstan motor)의 회전축(CS)에 밀착됨으로써 정속도로 주행하게 된다. 이와 같이 핀치롤러 조립체 (R)는 테이프(T)를 기준 정속도로 주행시키는 것인 바, 테이프 레코더의 정확한 동작을 위해서는 핀치롤러 조립체(R)의 정밀한 관리가 우선적으로 중요하다.In FIG. 1, the tape T is driven by a pole base (PB) that moves to both sides of the head drum (HD) along the loading hole (not shown) of the deck (D). After being taken out from the cassette C and moved on the driving path thereof, the pinch roller is driven at a constant speed by being in close contact with the rotation shaft CS of the capstan motor by the rotational movement of the pinch roller assembly R. As such, the pinch roller assembly R is to drive the tape T at a reference constant speed. Therefore, precise management of the pinch roller assembly R is important for accurate operation of the tape recorder.

제2도에는 이러한 핀치롤러 조립체(R)의 종래의 구성을 개략적으로 도시하였다. 이 것은 금속재 슬리브(sleeve; 1)의 외주에 고무재의 핀치롤러(2)가 결합되고, 그 내주에는 핀치레버(pinch lever; L)의 포스트(post; P)를 삽입하는 베어링(bearing; 3)이 구비된다. 베어링(3)은 슬리브(1)의 내주에 형성된 멈춤턱(1a)과 슬리브(1)의 일측 내주에 압입된 합성수지재의 원통형 스토퍼(stopper; 4)간에 개재되어 슬리브(1)에 지지된다.Figure 2 schematically shows a conventional configuration of such a pinch roller assembly (R). This is a rubber pinch roller (2) is coupled to the outer circumference of the sleeve (1), the inner ring of the bearing (3) inserting the post (P) of the pinch lever (L) Is provided. The bearing 3 is interposed between the stopper 1a formed on the inner circumference of the sleeve 1 and a cylindrical stopper 4 of the synthetic resin material pressed into one inner circumference of the sleeve 1 and supported by the sleeve 1.

그런데 이러한 종래의 핀치롤러 조립체(R)는 스토퍼(4)가 슬리브(1)에 단순히 압입되는 구성이므로, 동작시 열충격에 의해 스토퍼(4)가 이탈되는 문제가 있었다. 즉 핀치롤러 조립체(R)는 캡스턴축(CS)과의 사이에 테이프(T)를 밀착시킨 채 고속으로 회전함으로써 테이프(T)를 주행시키게 되는 바, 동작 중 핀치롤러 조립체(R)에는 상당한 열이 발생하게 된다. 이에 따라 핀치롤러 조립체(R)의 각 구성 요소들은 발열에 따른 열변형을 야기하게 되는데, 슬리브(1)는 스토퍼(4)에 비해 상대적으로 열팽창량이 크므로 스토퍼(4)가 슬리브(1)로부터 이탈되게 되는 것이다. 따라서 베어링(3)의 지지상태가 불안정해져 테이프(T)를 정속도로 주행시킬 수 없게 된다. 그러므로 종래의 핀치롤러 조립체(R)는 테이프 레코더의 안정성과 신뢰성 등을 보장할 수 없었을 뿐 아니라 슬리브(1)에 대한 스토퍼(4)의 압입 치수를 정밀하게 관리해야 하는 어려운 문제도 있었다.However, since the conventional pinch roller assembly R has a configuration in which the stopper 4 is simply press-fitted into the sleeve 1, there is a problem that the stopper 4 is separated by thermal shock during operation. That is, the pinch roller assembly R drives the tape T by rotating at high speed while keeping the tape T in close contact with the capstan shaft CS. This will occur. Accordingly, each component of the pinch roller assembly R causes heat deformation due to heat generation. The sleeve 1 has a large thermal expansion relative to the stopper 4, so that the stopper 4 is removed from the sleeve 1. It will be dismissed. Therefore, the support state of the bearing 3 becomes unstable and it becomes impossible to drive the tape T at a constant speed. Therefore, not only the conventional pinch roller assembly R can guarantee the stability and reliability of the tape recorder, but also has a difficult problem of precisely managing the press-in dimension of the stopper 4 with respect to the sleeve 1.

본 고안의 목적은 상술한 종래의 문제들을 감안하여 열충격에 의한 스토퍼의 이탈을 효과적으로 방지하여 베어링을 안정되게 지지할 수 있는 테이프 레코더의 핀치롤러 조립체를 제공하는 것이다.It is an object of the present invention to provide a pinch roller assembly of a tape recorder capable of stably supporting a bearing by effectively preventing the departure of the stopper due to thermal shock in view of the above-described conventional problems.

이와 같은 목적을 달성하기 위해 본 고안에 의한 테이프 레코더의 핀치롤러 조립체는, 내주에 핀치레버의 포스트를 삽입하는 베어링이 구비된 슬리브와, 이 슬리브의 내주에 결합되어 베어링을 지지하는 스토퍼와, 슬리브의 외주에 결합되는 핀치롤러를 구비하는 테이프 레코더의 핀치롤러 조립체에 있어서, 슬리브의 내주에 고정홈이 원주방향으로 형성되고, 스토퍼의 외주에 슬리브의 고정홈에 끼워지는 걸림돌기가 구비된 것을 특징으로 한다.In order to achieve the above object, a pinch roller assembly of a tape recorder according to the present invention includes a sleeve having a bearing for inserting a post of a pinch lever at an inner circumference, a stopper coupled to the inner circumference of the sleeve to support the bearing, and a sleeve. A pinch roller assembly of a tape recorder having a pinch roller coupled to an outer circumference of the tape recorder, wherein the fixing groove is formed in the circumferential direction on the inner circumference of the sleeve, and a locking projection is fitted to the fixing groove of the sleeve on the outer circumference of the stopper. do.

이에 따라 본 고안은, 테이프 레코더의 동작 중 핀치롤러 조립체의 구성요소들에 열변형이 야기되더라도 종래와 같은 스토퍼의 이탈이 효과적으로 방지되게 되므로 테이프 레코더의 안정성과 신뢰성 향상 등에 큰 효과를 발휘한다.Accordingly, the present invention, even if the thermal deformation of the components of the pinch roller assembly during the operation of the tape recorder is effectively prevented the departure of the stopper as in the prior art exhibits a great effect on improving the stability and reliability of the tape recorder.

이하 첨부된 도면을 참조하여 본 고안에 의한 테이프 레코더 핀치롤러 조립체의 한 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the tape recorder pinch roller assembly according to the present invention.

제3도에서, 본 고안에 의한 테이프 레코더의 핀치롤러 조립체(R)는 도시하지 않은 캠기어(cam gear)에 의해 소정 각도로 회전하는 핀치레버(L)의 포스트(P)에 금속재로 구성 된 슬리브(11)가 회전 가능하게 결합된다.In FIG. 3, the pinch roller assembly R of the tape recorder according to the present invention is made of metal on the post P of the pinch lever L, which is rotated at a predetermined angle by a cam gear (not shown). The sleeve 11 is rotatably coupled.

슬리브(11)의 외주에는 테이프(제1도의 T)가 기준 정속도로 주행되도록 테이프(T)를 캡스턴축(제1도의 CS)에 밀착시키는 고무재의 핀치롤러(12)가 결합된다. 한편 슬리브(11)의 내주에는 핀치롤러 조립체(R)가 핀치레버(L)의 포스트(P)에 대해 원활하게 회전될 수 있도록 베어링(13)이 구비된다. 이 베어링(13)은 슬리브(11) 내주의 대략 중간위치에 형성된 멈춤턱(11a)과 슬리브(11) 내주의 일단부에 압입되는 합성수지재의 스토퍼(14) 사이에 개재되어 슬리브(11)에 지지된다.The outer circumference of the sleeve 11 is coupled with a pinch roller 12 made of rubber material for bringing the tape T into close contact with the capstan shaft (CS in FIG. 1) so that the tape (T in FIG. 1) travels at a standard constant speed. On the other hand, the inner circumference of the sleeve 11 is provided with a bearing 13 so that the pinch roller assembly R can be smoothly rotated with respect to the post P of the pinch lever L. The bearing 13 is interposed between the stopper 11a formed at an approximately intermediate position of the inner circumference of the sleeve 11 and the stopper 14 of the synthetic resin material pressed into one end of the inner circumference of the sleeve 11 to be supported by the sleeve 11. do.

본 고안의 특징에 따라 슬리브(11) 내주의 적정위치에는 환형의 고정홈(11b)이 그 원주방향으로 형성되고, 스토퍼(14)의 외주에는 슬리브(11)의 고정홈(11b)에 끼워지는 환형의 걸림돌기(14a)가 형성된다. 이러한 고정홈(11b)과 걸림돌기(14a)는 슬리브(11)로부터의 스토퍼(14)의 이탈을 방지하기 위한 것인 바, 양자의 용이한 결합을 위해 슬리브(11)에 삽입되는 스토퍼(14)의 진행방향으로 적정각도 경사지는 대략 삼각 단면을 가지도륵 구성되는 것이 바람직하다.According to a feature of the present invention, an annular fixing groove 11b is formed in the circumferential direction at an appropriate position of the inner circumference of the sleeve 11, and fitted into the fixing groove 11b of the sleeve 11 at the outer circumference of the stopper 14. An annular locking projection 14a is formed. The fixing groove 11b and the locking protrusion 14a are for preventing the stopper 14 from being separated from the sleeve 11, and the stopper 14 inserted into the sleeve 11 for easy coupling between the fixing grooves 11b and the locking protrusion 14a. It is preferable to have a substantially triangular cross section inclined at an appropriate angle in the direction of travel.

한편 도시된 실시예에는 본 고안의 고정홈(11b)과 걸림돌기(14a)가 환형으로 구성되어 있으나, 이는 단순한 예의 목적일 뿐 본 고안은 이에 한정되는 것은 아니며 여러 가지 형태로의 변경구성이 가능함은 물론이다. 예를 들어 별도로 도시하지는 않았으나, 고정홈(11b)과 걸림돌기(14a)를 원주방향의 적정각도 간격으로 복수개씩 형성할 수도 있고, 또는 고정홈(11b)은 하나의 환형으로 구성하고 걸림돌기(14a)는 복수개로 구성할 수도 있다.Meanwhile, in the illustrated embodiment, the fixing groove 11b and the locking protrusion 14a of the present invention are configured in an annular shape, but this is merely for the purpose of example, and the present invention is not limited thereto and may be modified in various forms. Of course. For example, although not separately illustrated, a plurality of fixing grooves 11b and locking protrusions 14a may be formed at appropriate angle intervals in the circumferential direction, or the fixing grooves 11b may be formed in one annular shape and the locking protrusions ( 14a) can also be comprised in multiple numbers.

이와 같은 구조적 특징을 가지는 본 고안에 의한 테이프 레코더의 핀치롤러 조립체(R)는 동작시 각 구성 부품들에 열변형이 발생된다 하더라도 상호 결합되는 고정홈(11b)과 걸림돌기(14a)에 의해 종래와 같은 스토퍼(14)의 이탈이 효과적으로 방지되게 된다. 즉 핀치롤러 조립체(R)에 열변형이 발생되어 슬리브(11)와 스토퍼(14)간에 열변형 차이에 따른 갭이 야기되어도 이는 상당히 미미한 바, 스토퍼(14)의 걸림돌기(14a)가 슬리브(11)의 고정홈(11b)에 끼워져 있으므로 슬리브(11)로부터의 스토퍼(14)의 이탈이 발생되지 않게 되는 것이다.The pinch roller assembly (R) of the tape recorder according to the present invention having such a structural feature is conventionally formed by the fixing groove (11b) and the engaging projection (14a) coupled to each other even if heat deformation occurs in each component during operation Departure of the stopper 14 such as is effectively prevented. In other words, even if heat deformation occurs in the pinch roller assembly R, a gap due to the difference in heat deformation between the sleeve 11 and the stopper 14 is very small. Thus, the stopper 14a of the stopper 14 may have a sleeve ( Since it is fitted in the fixing groove 11b of 11), the detachment of the stopper 14 from the sleeve 11 does not arise.

이에 따라 본 고안은 테이프 레코더의 동작시 핀치롤러 조립체(R)의 열변형에 관계없이 테이프를 정속도로 안정되게 주행시킬 수 있으며, 또한 슬리브(11)에 대한 스토퍼 (14)의 압입치수 관리를 정밀하게 관리하지 않아도 되므로 제작이 종래보다 훨씬 간단해진다.Accordingly, the present invention can stably run the tape at a constant speed regardless of the thermal deformation of the pinch roller assembly R during the operation of the tape recorder, and precisely manage the press-fit dimension of the stopper 14 with respect to the sleeve 11. It does not have to be managed so that the production is much simpler than before.

그러므로 본 고안은 테이프 레코더의 안정성과 신뢰성 및 제작성 등을 크게 향상시키는 우수한 효과가 있다.Therefore, the present invention has an excellent effect of greatly improving the stability, reliability, and manufacturability of the tape recorder.

Claims (1)

내주에 핀치레버의 포스트를 삽입하는 베어링이 구비된 슬리브와, 상기 슬리브의 내주에 결합되어 상기 베어링을 지지하는 스토퍼와, 상기 슬리브의 외주에 결합되는 핀치롤러를 구비하는 테이프 레코더의 핀치롤러 조립체에 있어서, 상기 슬리브(11)의 내주에 고정홈(11b)이 원주방향으로 형성되고, 상기 스토퍼(14)의 외주에 상기 슬리브(11)의 고정홈(11b)에 끼워지는 걸림돌기(14a)가 구비된 것을 특징으로 하는 테이프 레코더의 핀치롤러 조립체.In the pinch roller assembly of the tape recorder having a sleeve having a bearing for inserting the post of the pinch lever in the inner circumference, a stopper coupled to the inner circumference of the sleeve to support the bearing, and a pinch roller coupled to the outer circumference of the sleeve. In the inner circumference of the sleeve 11, the fixing groove 11b is formed in the circumferential direction, and the engaging projection 14a fitted into the fixing groove 11b of the sleeve 11 is formed on the outer circumference of the stopper 14. Pinch roller assembly of the tape recorder, characterized in that provided.
KR2019960010153U 1996-04-30 1996-04-30 Pinch roller assembly or a tape recorder KR200143769Y1 (en)

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KR200143769Y1 true KR200143769Y1 (en) 1999-06-15

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