JPH0773649A - Tape cartridge - Google Patents

Abstract

PURPOSE:To protect a terminal part of a memory element in the tape cartridge incorporating the memory element and to incorporate the memory element in cooperation with other opening and closing member in a tiny scale. CONSTITUTION:A rear wall of a lower case 1b is provided with an opening 26, while a bottom wall a detecting hole 30 for preventing erroneous erasing respectively. The opening and closing member 27 for opening and closing the detecting hole 30 is disposed inside the lower case 1b. A rear wall of an upper case 1a is provided with an opening 37 above the opening 26. The memory element 35 is assembled inside the upper case 1a to be positioned above the opening and closing member 27, making its termianl part 36 face to the opening 37. The opening and closing member 27 is provided with a supporting wall 41 close and opposite to the back side of the memory element 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge containing a memory element.

[0002]

2. Description of the Related Art An example of this type of tape cartridge is disclosed in Japanese Patent Application Laid-Open No. 63-166085. There, a memory element for storing characteristic data of the tape or setting data at the time of recording such as recording mode and voice recording data is built in. When the tape cartridge is loaded in the VTR, the terminal portion of the memory element comes into contact with the connection terminal on the VTR side. The terminal portion of the memory element is embedded in the outer surface of the main body case in an exposed state.

[0003]

However, in the conventional example in which the terminal portion of the memory device is embedded in the outer surface of the main body case in an exposed state, the molding of the main body case is complicated because the terminal portion is embedded, and a fall accident or the like occurs. Therefore, there is a problem that the terminal portion is likely to be damaged or deformed.

Therefore, according to the present invention, instead of embedding the terminal portion of the memory element in the main body case, an embedding manner is adopted to prevent the terminal portion from being damaged or deformed while ensuring simplification of molding of the main body case. The purpose is to plan.
Further, the present invention, in this kind of tape cartridge, generally has a detection hole for preventing erroneous erasure etc. in the bottom wall of the main body case, focusing on the fact that an opening / closing member for opening and closing the detection hole is incorporated, It is an object of the present invention to compactly store the entire memory element or only its terminal portion in a restricted space in the main body case in cooperation with the opening / closing member, and to improve reliability of the contact function.

[0005]

According to the present invention, a reel 3 around which a tape 2 is wound is housed inside a main body case 1 formed by abutting upper and lower cases 1a and 1b as shown in the figure, and an outer wall of a lower case 1b. In the lower case 1b, an opening 26 is provided, a detection hole 30 for preventing erroneous erasure is provided on the bottom wall of the lower case 1b, and an opening / closing member 27 that is positioned and held at the opening position and the closing position of the detection hole 30 is provided in the lower case 1b. It is assumed that the tape cartridge installed in. In addition, according to the present invention, the opening 37 is provided on the outer wall of the upper case 1a so as to be located above the opening 26, and the opening 3 is provided inside the main body case 1.
7, a memory element 35 having a terminal portion 36 facing the 7 is provided, and a supporting wall 41 is provided on the upper end side of the opening / closing member 27 so as to closely face the entire memory element 35 or only the terminal portion 36 on the back side thereof. .

[0006]

Since the terminal portion 36 is housed in the opening 37 of the main body case 1, even if another object hits the outer end surface side of the opening 37 of the main body case 1 due to a fall accident or the like, it does not hit the terminal portion 36. The opening / closing member 27 is positioned and held in the lower case 1b at the opening position and the closing position of the detection hole 30, respectively. Therefore, when the VTR is loaded into the VTR and the connection terminal on the VTR side comes into contact with the terminal portion 36, the terminal portion 36 receives a pressing force from the connection terminal on the VTR side, but the entire memory element 35 or the terminal portion 36 is as described above. Lower case 1b
Support wall 4 for opening / closing member 27 that is positioned and held inside
Since it is received and supported by No. 1, it is possible to sufficiently counter the pressing force without falling backward.

[0007]

The drawing shows a tape cartridge for an 8 mm video. 2 and 3, the main body case 1 is formed by abutting upper and lower plastic cases 1a and 1b and integrally coupled with each other by a screw or the like. Has been placed.
The tape 2 drawn from one reel 3 is guided by the tape guides 6 provided at the front and left tape outlets 5, 5 of the main body case 1 and wound on the other reel 3. The front center of the main body case 1, that is, the left and right tape outlets 5
-Has a pocket 7 for tape loading between 5. The upper and lower surfaces and front surface of the pocket 7 are open. The tape 2 led out to the front side of the main body case 1 is covered and protected by a front lid 9, a back lid 10 and an upper lid 11 when not in use.

The front lid 9 has a main face plate 9a as shown in FIG.
And the side plate 9 which is continuously provided rearward from the left and right ends of the main face plate 9a.
b. 9b, and the support shafts 12 project from the inner surfaces of the left and right side plates 9b, 9b. This front lid 9
As shown by the solid line in Fig. 7, the left and right tape outlets 5, 5
Further, it can be freely opened and closed around the left and right support shafts 12 between a position where the front surface of the pocket 7 is closed and an upper open position shown by a two-dot chain line in FIG. This front lid 9 is the left and right support shafts 1.
A spring member 13 fitted to one of the two 2 is always biased to rotate in the closing direction.

The upper lid 11 has a main face plate 11 as shown in FIG.
a and side surface plates 14 and 14 that extend downward from the left and right ends of the main surface plate 11a, and slide shafts 17 project from the inner surfaces of the rear end portions of the left and right side surface plates 14 and 14, respectively.
The upper lid 11 closes the upper surface of the pocket 7 as shown by the solid line in FIG. 7 with the opening / closing operation of the front lid 9 and the open position where the upper lid 11 retracts rearward to the upper surface of the pocket 7 as shown by the chain double-dashed line in FIG. It can be opened and closed freely over. For this purpose, the upper lid 11 pivotally connects the connecting shafts 15 provided at the front ends of the left and right side plates 14 of the upper lid 11 to the connecting holes 16 provided at the upper left and right ends of the upper lid 9, respectively. It is slidably engaged with guide grooves 19 having a V-shape provided on the outer surfaces of the left and right side walls of the case 1.

The upper edge of the side plate 9b of the front lid 9 and the upper lid 1
Between the mating surfaces of the first side plate 14 and the lower edge of the side plate 14, the front cover 9 and the upper cover 11 are closed as shown in FIGS. 8 and 9 in order to prevent dust from entering.
The upper edge and the lower edge of the side plate 14 of the upper lid 11 are formed in the shape of a cutting edge with inclined surfaces 45 and 46 so as to overlap each other in the inner and outer directions. Alternatively, as shown in FIG. 10, flat surfaces 47 and 48 may be formed at both ends of the slopes 45 and 46, respectively. By forming the upper edge of the side plate 9b of the front lid 9 and the lower edge of the side plate 14 of the upper lid 11 in such a shape, even when a slight gap is generated between the upper and lower edges, the detour is made inward and outward. Since it becomes a passage, it is possible to reduce intrusion of dust.

As shown in FIG. 2, the back cover 10 has a connecting pin 20 provided on the left and right of its upper end rotatably pivotally connected to a pin hole 21a of a boss 21 provided on the inner surface of the upper cover 11. In addition, leg portions 22 are provided on the left and right of the lower rear surface of the back cover 10, and slide pins 23 provided on each leg portion 22 are slidable in "S" -shaped guide grooves 24 provided on the left and right side walls in the pocket 7. Is engaged with. Therefore, the back lid 10 is the front lid 9
And a closed position for covering the back side of the tape 2 in the pocket 7 as shown by the solid line in FIG.
As shown by the two-dot chain line state in the figure, it can be opened and closed between the upper surface of the pocket 7 and the open position located below the upper lid 11 in the open state.

In FIG. 4, an opening 26 is provided in the rear wall 25 of the lower case 1b near one end in the left-right direction.
An opening / closing member 27 for preventing erroneous erasure is incorporated in the inside of 6. The VT is provided on the case bottom wall 29 below the opening / closing member 27.
A detection hole 30 through which the R-side detection member comes in and out is provided.
The opening / closing member 27 has a recordable position A for closing the detection hole 30,
Re-recording disabled position (erasure prevention position) B where detection hole 30 is opened
And is slidable in the left-right direction on the inner surface of the lower case 1b. The sliding operation of the opening / closing member 27 is performed by manually gripping the operating knob 31 provided on the front side of the opening / closing member 27 so as to face the opening 26.

Further, between the opening / closing member 27 and the lower case 1b, there is provided a moderation means for stopping and holding the opening / closing member 27 at the positions A and B, respectively. As the moderating means, for example, an elastically deformable moderating arm 32 is provided to project rearward from a part of the rear surface of the opening / closing member 27, and two left and right positioning recesses 34 are provided on a regulation wall 33 projecting from the case bottom wall 29. The opening / closing member 27 is stopped and held at the position A or the position B by engaging any one of the recesses 34 with the tip of the moderation arm 32.

As shown in FIGS. 1 and 6, the body case 1 has a built-in memory element 35. This memory device 35
Is a combination of a ROM chip that stores fixed data such as the specifications and characteristic data of the tape 2, a RAM chip that stores variable data such as setting data at the time of recording, and a battery as one unit of a rectangular parallelepiped. The terminal portion 36 that comes into contact with the connection terminal on the VTR side is integrally provided on the front side thereof. On the front side of the terminal portion 36, as shown in FIG.
As shown in, a plurality of contacts 36a are exposed. The memory element 35 is compactly incorporated so that the terminal portion 36 is exposed substantially flush with the outer surface of the rear wall 25 of the upper case 1a and the dead space above the opening / closing member 27 is utilized. Therefore, the rear wall 25 of the upper case 1a has the opening 2
6, the opening 37 is provided so as to correspond to the upper side of the memory element 3.
5 is installed so that the contact 36a of the terminal portion 36 faces outward from the opening 37. Note that the opening 26 and the opening 37 need to be in a vertical arrangement relationship, and they are not necessarily formed in a communicating state as shown in the example of the drawing, and they are in a non-communicating state in which they are vertically independent. It may be formed in.

As shown in FIG. 2, the memory element 35 has an ear portion 39 horizontally extended to the upper end surface side thereof, and a welding pin 40 protruding from the inner surface of the upper case 1a to the ear portion 39 as shown in FIG. The tip of the pin 40 is caulked and welded through the memory element 35 inside the upper case 1a.
6 is fixed and fixed so that 6 faces the opening 37.

In this case, a support wall 41 is integrally projecting upward from the rear side of the upper end of the opening / closing member 27, and this support wall 41 is the rear side opposite to the front side having the contact 36a of the memory element 35. To be close to each other. However,
The supporting wall 41 is set to a size such that it is located on the back side of the memory element 35 even when the opening / closing member 27 is moved from the position A to the position B. In this case, the support wall 41 can prevent the memory element 35 from falling toward the inside of the case against the contact pressing force F when the connection terminal on the VTR side and the terminal portion 36 are brought into contact with each other. The memory element 35 needs only a fixing means which is simple and cantilevered so that the upper end side of the memory element 35 is caulked and welded to the inner surface of the upper case 1a, and moreover, it sufficiently withstands the contact pressure. Further, the opening / closing member 27 has the moderation arm 32 having elasticity as described above,
When the tip is in contact with the regulation wall 33, a certain force can be applied to the terminal portion 36 via the support wall 41 by the elasticity of the moderation arm 32. Therefore, VT
When the connection terminal on the R side comes into pressure contact with the terminal portion 36, the contact pressure can be increased by the elastic force of the moderation arm 32 of the opening / closing member 27 acting via the support wall 41.
The reliability of the contact function can be further improved.

If the support wall 41 is closely opposed to the back side of the memory element 35, the opening / closing member 27 can be prevented from falling forward outside the opening 26 and the opening / closing member 27 can be tilted forward. Eliminates the need for protective functions. However, since the support wall 41 closely opposes the back surface side of the memory element 35, when the opening / closing member 27 is opened / closed, the support wall 41 is strongly rubbed against the back surface side of the memory element 35, which does not hinder the opening / closing operation. .

At the time of assembling, the opening / closing member 27 is incorporated in the lower case 1b together with necessary components such as the tape 2 and the reel 3. After that, the upper case 1a in which the memory element 35 is fixed in advance is put on the lower case 1b.
As a result, the back side of the memory element 35 closely faces the support wall 41 of the opening / closing member 27.

As the memory element 35, instead of integrally providing the terminal portion 36 on the memory element 35, a type in which the main body portion and the terminal portion of the memory element 35 are separated and then both are connected by a conductor One can also be used.
In this case, the terminal portion 3 of the separated type memory element 35
Although only 6 is fixedly fixed above the opening / closing member 27 so as to face the opening 37, its main body portion is the opening 37 of the main body case 1.
It can be installed in another place different from.

In the above-described embodiment, the detection hole 30 is for preventing erroneous erasure, but other than that, for example, a detection hole provided for detecting whether or not the memory element 35 is incorporated may be used. Good. In addition to the rear wall 25, the outer wall of the main body case 1 on which the opening / closing member 27 and the terminal portion 36 of the memory element 35 are installed may be the side wall 42 or the pocket rear wall 43 shown in FIG.

[0021]

According to the present invention, since the memory element 35 and the terminal portion 36 are not embedded in the main body case 1 but are incorporated in the main body case 1, the main body case 1 is embedded with the terminal portion in a part of the outer surface thereof. Molding of the main body case 1 can be performed easily as compared with molding as described above. Inside the body case 1,
Since the terminal portion 36 of the memory element 35 is installed so as to face the opening 37, it is possible to prevent the floor surface from directly hitting the terminal portion 36 due to a fall accident or the like, and to prevent the damage,
Deformation can be prevented.

Particularly in the present invention, the entire memory element 35 or the terminal portion 36 thereof is received and supported by the support wall 41 of the opening / closing member 27 even if a pressing force by the connection terminal on the VTR side is received, so that the memory element 35 should not fall down. Therefore, the strength of the terminal portion 36 against the pressing force can be secured, and the reliability of the contact function can be improved. Moreover, the entire memory element 35 or the terminal portion 36 thereof is compactly housed above the opening / closing member 27. Further, by utilizing the support wall 41 provided on the opening / closing member 27 as described above, the memory element 35 or the terminal portion 36 thereof is provided inside the main body case 1.
Since it is not necessary to additionally provide only the rearward tilting prevention member, the structure of the main body case can be simplified in this respect as well, and its molding is easy.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part.

FIG. 2 is an exploded perspective view of the whole.

FIG. 3 is a plan view of the inside of the whole.

FIG. 4A is a plan view showing a state where the opening / closing member is in a position where the detection hole is closed, and FIG. 4B is a plan view showing a state where the opening / closing member is in a position where the detection hole is opened.

FIG. 5 is a perspective view of the whole as seen from the back side.

FIG. 6 is a front view of a main part.

FIG. 7 is a vertical sectional side view of a pocket portion.

FIG. 8 is a side view of a front lid and an upper lid.

9 is an enlarged sectional view taken along the line CC in FIG.

FIG. 10 is a sectional view showing another embodiment corresponding to FIG. 9;

[Explanation of symbols]

 1 Main body case 2 Tape 3 Reel 26 Opening 27 Opening / closing member 30 Detection hole 35 Memory element 36 Terminal part 37 Opening 41 Support wall

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriaki Masuda, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa, Ltd. Inside the Hitachi Media Visual Media Research Laboratory (72) Inventor Hidekazu Takeda, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Visual Media Research Laboratory (72) Inventor Tatsumi Nishijima, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture

Claims (1)

[Claims] 1. A reel 3 around which a tape 2 is wound inside a main body case 1 formed by abutting upper and lower cases 1a and 1b.
The lower case 1b is provided with an opening 26 in the outer wall thereof, and a bottom wall 29 of the lower case 1b is provided with a detection hole 30 for preventing erroneous erasure, and the detection hole 30 is provided at an open position and a closed position, respectively. In the tape cartridge in which the opening / closing member 27 that is positioned and held is installed in the lower case 1b, an opening 37 is provided on the outer wall of the upper case 1a so as to be positioned above the opening 26, and the opening 37 is provided inside the main body case 1. A memory element 35 having a terminal portion 36 facing the above is incorporated, and a support wall 41 is provided on the upper end side of the opening / closing member 27 so as to closely face the entire memory element 35 or only the terminal portion 36 on the back side. A tape cartridge characterized in that