JPS59180850A - Tape loading device - Google Patents

Abstract

PURPOSE:To set the length of the gear part of loading arms and a tape guide support member respectively so that a tape loading device is most compact in a tape unloading mode, by storing in piles the loading arms and the support part in the tape unloading mode, and setting optionally the tooth number ratio of a double gear. CONSTITUTION:Loading arms 44 and 45 and a tape guide support member 21 are stored in piles. When a tape loading action is started, the moving speed of the arm 44 is increased or reduced by a double gear 33 and a large gear 31 and in response to the tooth number ratio of the gear 33 to shift the arm 45. While the moving speed of the arm 45 is increased or reduced by a double gear 32 and the gear 31 and in response to the tooth number ratio of the gear 32 to shift the member 21. Therefore it is possible to decide optionally the shift amounts of the arm 45 and the member 21 in response to the tooth number ratios of gears 33 and 32.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of drawing a tape from a tape cassette with a tape guide moved along a predetermined travel path and loading it helically onto the surface of a rotating head drum. - I to the gaming device! I? It is something that can be done.

Conventional configuration and problems thereof A conventional tape loading device will be described with reference to FIG. FIG. 1 is a schematic configuration diagram of a tape loading device for a conventional video tape recorder (hereinafter referred to as VTR). 4 is a take-up side reel stand, 4 is rotatably supported on the chassis, and 1-15 is a fixed shaft (not shown) implanted in the chassis.
6 is a full-width erasing head, 7.11 is an arp guide for pulling out the magnetic tape 3 from video output sets 1 and 2, and 8.10 is rotatable to the Freely supported impedance 1-1
-L, 134J audio A erase l\t, 14 is automatic (to ATl line 1 [1-ru head, 1j) is to magnetoresistive 1 (head (Ml is head), 16 is P4 boss 1
~． Reference numeral 9 denotes a rotating head drum equipped with a rotating spatula 1- (V not shown), and 18 a rotating head drum attached to the kitbustan 17 in order to run or stop the magnetic 7-pu 3.
1-ra, 19 is rotatably supported on the chassis [)5
Boss 1~. 21 is a supply side °j-bukaid support member, 22
23 is a tape guide support member on the winding side, and 23 to 26 are rope pullers 11. Turn off hoop loading mode
When the loading arms 24, 26 are rotated by a dink motor (not shown) as shown by arrow B, the supply side tape guide support member 21,
The tape guide support member 22 on the take-up side is pulled out along the kite groove (not shown) indicated by the arrow C, and the magnetic tape guide support member 22 is
is helically loaded onto the circumferential surface of the rotating head drum 9.

In this way, the loading arms 23 to 26 overlap with the video cassette during unloading, resulting in a loss of space and a major hindrance to downsizing the device. In addition, when low f ink was used, the friction between the tape guide support members 21 and 22 and the guide groove caused transmission to the tape guide support members 21 and 22)! There was a problem that the loss of force was large (and the movement movement could not be performed smoothly).

OBJECTS OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional technology.
To provide a tape loading device capable of minimizing loss and achieving smooth tape loading with little transmission loss.

Structure of the Invention In order to achieve the above-mentioned object, the J-ding device of the present invention pulls out a tape to a tape guide 1 by moving along a predetermined movement path, and forms a hemline on the circumferential surface of a rotating head drum. a tape guide to be loaded into the
A large gear disposed on the board along the predetermined moving path, a hoop guide holding member that has teeth on the tape gear 1'1~, '+J and J(); Two gears of different numbers are fixed coaxially to each other, one gear meshes with the large gear, and the gear in use meshes with one leg 11 of the tape guide support member. and a stepped gear, and the cheat guide support part is in a state of engagement with the second tooth on the opposite side of the large tooth by causing the large gear to roll and rotate through the second tooth. There is a configuration in which the paper is moved in the h direction in which the two-stage gear moves.

DESCRIPTION OF EMBODIMENTS As described above, one embodiment of the present invention will be described based on the drawings.
11 dawn.

str 21 n 10 V in c13 in an embodiment of the tree invention
-r R's tape 11-F The schematic back view of the R tape 11-fing device in the un-L and I-ding states, Figure 3 is the same as 1! This is a schematic plan view of Nl'Y in a state where j-b [1-ding is completed, 9 [
Rotating head 1-ram (with, recording and replaying 1!S-7-/
When traveling, the ram and todrum are fixed, and the rotating head is 1 = l 'IJ / this head is taken, 1 bar 2
Only 7 rotates for recording/playback 1. In addition, the RADDORA LX 9 has a D-cut section, and V T
When installing video cassette 2 on R, the above [] cup 1
A part of the head drum 9 is located on the side of the video force 11 and 2, and rotates in the direction of the arrow at the same time as the hoop lowering, and the rotating head drum 9 bites into the video force 1-2, as shown in Figure 3. It is fixed at the indicated position. 39 is a 1 Yapstan motor that moves the Kitobustan 17 4!, and the Binge roller 18 is moved 1
-I pressure shield on the cistern 17 and control the tape speed 28,810.40i.
．． 29,30.7.

11.38 and 42.41 are i-bu guides C'. Third
In Figures 5 to 5, numeral 34 is a pinion whose shaft is fixed on the board. , , 44.43 is a loading arm whose gear meshes with the small gear 34 and rotates to the right, and a two-stage gear 33.35 is attached to the spindle 53.52 at one end (the arrangement is two-stage Fti + The upper gear of the single gear 33.35 meshes with a large gear 31.37 installed on the base plate along a predetermined movement path of the guide 7. 45.4 (
i is a two-stage tooth, the teeth that mesh with the upper gear of Fp 33, 35 are shifted to the right [1-Ding arm r is provided, 2-stage gear is attached to one end]
The stepped gear 32.36 is connected to the support shaft h4, :)j+, J, -
), and the lower IM' of 2 IQ South Central 32.36
J medium and large gear 31.37 are in one mesh. 21.2
2 (, Waist 2nd tier Yamanaka: i2, 3G's upper tooth width and meshing teeth, etc., j-puman id 7.11, and inclined bosses 1 to 8, 1
0 and λ are each provided with one j-b guide support member.

In FIG. 0, 47 is a loading heater equipped with arm 48. A-1s4B is a worm gear j)
C meshes with 0. 57 is a pin provided on the A-large gear 50, and the pin 57 and the loading arm 45 are connected by the connecting rod 4. Reference numeral 51 denotes a lever that rotates around a fulcrum 56 and includes a Dave guard 30 and inclined bosses 1 to 28.

Next, the operation will be explained. VTR with video tape 1~2
When not installed, loading arm 43°JIO
, 44, 45 and the arp guide support members 21, 22 are housed in the uni-wheel shown in FIG. Next, from this single person position, when the VAR cassette 2 is attached to the VrR, the loading motor 47 operates,
The large gear 50 rotates counterclockwise through the arrow 8, moves the connecting rod 49 in the direction of arrow B (FIG. 6), and moves the loading arm 45 in the direction of the arrow B (FIG. 6). As a result, the loading arm 45 in FIG.
On the two-stage float 32 provided on the L, the large gear 31 is fixed on the board and rotates in the counterclockwise direction, and the two-stage gear 32 and the large gear 31 are warped and engaged on the j side C'. The guide support member 21 moves in the tape loading direction according to the roller principle, moves to a position 21a, and is fixed.

At the same time, the two-stage gear 33 and the loading arm 4 are positioned between the rolling arm 45 and the large gear 31.
4 moves in the hoop loading direction based on the same principle. In other words, in the state shown in FIG.
1 are stored in an overlapping state, and when tape loading is started, the movement of the loading arm 44 is increased by the second gear float 33 and the large gear 31 according to the tooth ratio of the second gear 33. C loading speed or deceleration
Move l\45, and also move the two-stage gear 32 and the large gear 3.
1, the movement of the loading arm 45 is accelerated or decelerated according to the tooth ratio of the two-stage gear 32 to move the tape guide support part 21, and tII'
According to the Sung Dynasty, the movement of the wing arm 45 and the tape guide support member 21 can be arbitrarily determined by the tooth number ratio of the two-stage south-center 33.32. Also, the movement of the rope puller 1144 (well, the movement is transmitted to the rope puller l\43 via the small float 34, and the loading arm 4G and tape guide support member 22 move in the same way as the loading arm 45 and tape guide support member 21). 7. Also, along with the arp loading, the arp guide 30 and the inclined post 28 are
The pinch roller 18 and the i-bu guides 42, 2! l is 18
a, 42a, and 29a are moved to position i6 and fixed (not shown).

In the embodiment described above, four two-stage gears were used, but the number of two-stage gears can be arbitrarily selected in consideration of loading suspension, space factor, etc.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described in detail, it is possible to store the J'-me and the J-P guide support member in an overlapping manner during J-anchor loading. Also, 2
By setting the tooth ratio of the stepped gear (f) steeply, it is possible to arbitrarily set the amount of advancement of the loading arm and the Arp guide support member relative to the two-step gear with which they are meshed. Arm d3) - Set the length of the tooth width part of the guide support part by
] - It can be set to 1 = the ability of the broadcasting device to be the most compact when loading. 1 Also,■
''-F, there is no interference with the reel drive mechanism installed in the bidet A) J set ■ part, and the rotating head drum and the bidet A) Jt1 ~ are smoothly connected to the V-touch R where the A-burlap occurs. can be realized. In addition, since the lever is configured with a gear drive system, there is little friction loss between the I'J and ink arms between each C1 ink arm, allowing for smooth operation and making the device thinner ( -Monkey 3,

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a conventional V'T-R hoop loading device, and FIG. 2 is a schematic plan view of an embodiment of the present invention.
-11-]- A schematic plan view of the loading device in the un- [=1- lying state; FIG. 5 is an enlarged front view of the main parts of the apparatus; FIG. 3 is an enlarged plan view of the main parts of the apparatus. 2... Video cassette, 3... Magnetic arc ,7,1
1...j~bu guide, 8,10...slanted post-1
9... Rotating spatula 1-drum, 21.22... Tape guide support member, 3137... Large gear, 32.33.
3! i, 3G...2-stage gear, 34...Small gear agent Yoshihiro Morimoto

Claims (1)

[Claims] 1. By moving along the predetermined movement path, the
an arp guide helically loaded onto the circumferential surface of the ram; a large gear disposed on the plate along the predetermined movement path; and a large gear supporting the day guard, both of which have teeth. An arptoid support member and two gears having the same number of teeth are coaxially fixed to each other, one tooth i1i meshes with the large gear, and the other jj gears mesh with the hoop guy 1~.
It is equipped with a two-stage gear that meshes with the teeth of the support part l, and the front;
By rolling and rotating the stepped gear along the large gear R2, the Arp guide support member, which is in mesh with the two-step gear on the opposite side of the large gear, is moved in the direction of movement of the two-step gear. 1. :
Chee Robe