JPH01248308A - cylinder device - Google Patents

Abstract

PURPOSE:To easily mount a cylinder assembly on a substrate from an upper plane by mounting the cylinder assembly in which a cylinder part and a motor are integrated via a span part protruding to the outside than a cylinder diameter and a mounting plate on the substrate with the span part. CONSTITUTION:The mounting plate 18 having the span part protruding to the outside than the cylinder parts 1 and 9 is provided to integrate the upper and lower side cylinders 1 and 9 with a cylinder motor. Also, a flat spring 17 having the span parts (17a-17c) protruding to the outside than the cylinders 1 and 9 is provided to mount a cylinder and cylinder motor assembly on the substrate 14. And the flat spring 17 and the mounting plate are fixed on the lower plane of the lower side cylinder 9, and the span part of the mounting plate 18 is coupled with the extension parts 19d and 19e of the stator 19 of the cylinder motor, then, the cylinders 1 and 9 are integrated with the cylinder motor. The assembly is mounted on the substrate 14 with the span parts (17a-17c) of the flat spring 17. In such a way, it is possible to mount the cylinder assembly on the substrate easily from the upper side.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cylinder device such as a magnetic recording/reproducing device.
In particular, when the cylinder diameter is reduced and the cylinder motor diameter is approximately the same as or larger than the upper and lower cylinder diameters, the magnetic recording and reproducing device is suitable for mounting the cylinder motor on the ship or chassis. Related to cylinder devices such as.

[Conventional technology]

A conventional magnetic recording/reproducing device is, for example, disclosed in Japanese Patent Application Laid-open No. 155-1983.
As described in No. 008, the lower cylinder diameter of the cylinder on which the rotary head is mounted is larger than the cylinder motor diameter, so by screwing the cylinder from the lower surface of the cylinder motor attached to the QC on the chassis, It has a structure that integrates the cylinder and chassis. However, when the diameter of the cylinder is reduced, it becomes difficult to develop a cylinder motor that corresponds to the small diameter cylinder (i.e., a cylinder motor with a diameter smaller than the cylinder diameter), and the cylinder diameter is approximately the same as or larger than the cylinder diameter of the small diameter cylinder. It is necessary to use a cylinder motor with a diameter of Cv
Since the diameter of the cylinder and the diameter of the motor are the same, it is difficult to screw the lower cylinder onto the lower surface of the cylinder motor, and there is a problem in that the cylinder device cannot be removed and put away for a month. Also, please refer to the above problems! +
As a means to do this, there is a flange-equipped cylinder which is provided with two cylinder flanges, one below the conventional device described above.

Under the above conditions, the cylinder and chassis are integrated by providing a screw hole in the flange part (・ko, f) and screwing the cylinder motor on the chassis, but the diameter is larger than that of the flange. Since the lower cylinder is machined from the raw material, the cost is high, and from the viewpoint of installation accuracy, there is a problem that the cylinder is easily deformed.

Furthermore, in conventional cylinder mounting devices, there is a method in which a leaf spring is attached to the lower surface of the lower cylinder, and the upper and lower cylinders are housed in the chassis by the pressure force ζ of the leaf spring. However, in this method, a motor pulley installed under one cylinder and having a smaller diameter than the lower cylinder diameter is connected to the cylinder shaft, and the cylinder is driven by the motor via a belt, and is not a direct drive method. Therefore, when the cylinder diameter becomes smaller, a cylinder motor with a diameter equal to or larger than the cylinder diameter is connected to the cylinder motor on the chassis.
No consideration is given to the shape of the motor holder or the structure for integrating the cylinder and cylinder motor when reattaching the motor.

[Problem to be solved by the invention]

In the above conventional technology, when the cylinder diameter becomes smaller, it is difficult to develop a cylinder motor that can accommodate the cylinder (that is, a cylinder motor smaller than the cylinder diameter), so Therefore, it is necessary to use a cylinder motor with a diameter of . Although it is possible to reduce the diameter of the motor by making the motor cylindrical, it is also difficult to make the motor thinner (thinner). In this conventional technology, when the cylinder motor diameter is the same as or larger than the cylinder diameter, the lower cylinder is screwed from the bottom surface of the cylinder motor (cylinder board). The problem was that there was nothing I could do.

Therefore, an object of the present invention is to reduce the diameter of the cylinder so that it is possible to easily mount the cylinder assembly, which integrates the cylinder motor and cylinder, from above on the board (cylinder motor). The present invention provides a cylinder device such as a magnetic recording/reproducing device.

[Means to solve the problem]

In order to achieve the above object, the cylinder device of the present invention integrates a cylinder part equipped with a rotating head and consisting of upper and lower cylinder forces, and a cylinder motor with the same diameter or larger diameter. As a means for increasing the diameter of the cylinder, a mounting plate is provided which has a span portion projecting outward by l beyond the diameter of the cylinder portion. Further, the means for attaching the cylinder and cylinder motor assembly to the substrate ζ is similarly provided with a leaf spring having a span portion projecting outward beyond the diameter of the cylinder portion. Similarly, an extension portion protruding outward from the diameter of the cylinder portion is formed corresponding to the span portion of the mounting plate.The lower surface of the lower cylinder, the leaf spring, and the mounting plate are fixed in that order, Furthermore, the cylinder part and the cylinder motor are integrated by connecting the span part of the mounting plate 0 and the extension part of the stator Q of the cylinder motor with screws or the like.

The integrated cylinder assembly is attached to the base plate (cylinder motor) ζ by means of screws or the like through the shanks of the leaf springs, thereby obtaining a cylinder device having the desired configuration.

In a preferred embodiment, the substrate has a cutout, for example around a circular shape, through which the motor can pass, and through which the motor OJ extension and the span of the mounting plate can pass. An opening in the shape of a notch is provided.A receiving surface for receiving the lower surface of the lower cylinder is formed around this opening.A receiving surface for receiving the lower surface of the lower cylinder is formed around the opening. A cutout is formed in a shape and size that allows the receiving surface to pass through.

A plurality of each of the span parts of the leaf spring and the mounting plate, the extension part and side surface cutout of the stator of the cylinder motor, and the receiving surface and cutout formed in the board are provided. [Function] Based on the above structure gζ Explain the action.

In a cylinder motor that has a motor holder (motor stator) that has several ends (extension parts) longer than the cylinder and cylinder motor diameter, and a mounting plate that has several spans (protrusions) that are longer than the cylinder diameter. The lower cylinder and cylinder motor are integrated by connecting the mounting plate and the cylinder motor together using the span, for example, by screwing, and by fastening the mounting plate and the lower cylinder, for example, with screws. Here, the cylinder assembly (here, a leaf spring having several spans (projections) longer than the cylinder diameter is provided between the lower cylinder and the mounting plate).

On the other hand, the CC base mounted on the chassis (the cylinder is mounted on the board) has a notch to avoid the span of the motor holder and the mounting plate, and in order to be mounted on the cylinder assembly%CC base, a cutout is provided on the side of the motor holder. A receiving surface (protrusion) for receiving the lower surface of the cylinder through the provided notch is provided on the CC base.

Now, install the above cylinder assembly from the top surface of the chassis.
Attach it to the C base. At this time, the cylinder assembly is
The span of the motor holder and the plate is inserted into the cylinder receiving surface (protrusion) of the CC base through the notch of the motor holder, and the span of the motor holder and the plate is inserted through the notch of the CC base. Supported by the cylinder receiving surface.

Therefore, the other end of the leaf spring attached to the cylinder assembly is crimped and screwed to the CC base on the chassis, thereby integrating the cylinder assembly and the chassis.

〔Example〕 Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a first cylinder device according to the present invention.
and sectional views showing the second embodiment, FIGS. 6 and 4,
FIG. 5 is a diagram showing the process of assembling the cylinder and cylinder motor as an assembly according to the first and second embodiments and also assembling the CCC pace on the chassis.
Figure 6 shows the process of assembling the entire cylinder assembly onto the CC base on the chassis. Figure 6 is a diagram showing the notch position of the motor holder. Figure 7 is a perspective view of the cylinder assembly mounted on the chassis. Fig. 8 is a diagram showing the mechanical parts of a camera-integrated VTR using the cylinder device described above.In the figure, 1 is an upper cylinder, 2 is a screw, 3 is a screw, 4 is a boss, 5 is a shaft, 6 is a screw, 7 is Herad pace, 8 is disk, 9 is lower cylinder, 10 is bearing,
11 is a rotary transformer, 12 is a rotary transformer, 1
3 is screw, 14 is CC base, 15 is clothes, 16 is F
G board, 17 is a leaf spring, 18 is a motor mounting plate, 19 is a motor holder, 20 is a bearing, 21 is a pin, 22 is a chassis, 26 is a guide post, 24 is a guide post, 2
5 is a guide boss, 26 is a take-up reel, 27 is a supply reel, 28 is a cassette, 29 is a tape entry side guide boss), 30 is a guide boss, 31 is a tape, and 32 is a guide boss.

33 is a guide post on the tape exit side, 64 is a capstan motor, 65 is a pinch roller, and 66 is a guide post.

57 is a guide post.

Here, the operation of the cylinder will be explained with reference to FIGS. 1 and 2. The driving force from the cylinder motor mounted in the motor holder 19 is transmitted to the shaft 5, which is supported by bearings 20.10.

At this time, the shaft 5 is press-fitted into the boss 4, and the boss 4 is also press-fitted into the upper cylinder 1. As a result, the driving force is transmitted to the upper cylinder 1.

On the other hand, the rotating parts 11a and 1 of the rotary transformer 11.12
2a is bonded to the upper cylinder 1 and a disk 81 which is integrally fixed through the screw thread 6I, and rotates as a unit by the above driving force. At this time, the fixed parts 11b and 12b of the rotary transformers 11 and 12, which are integrally identified with the lower cylinder 9, and the rotary transformer 11a,
12a, inductance coupling performance is ensured. The incoming current due to the inductance coupling performance is transmitted to the head chip (not shown) on the head base Z, and the head base 7 is connected to the upper cylinder 1ζ screw 2 (
The upper cylinder 7 rotates integrally with the upper cylinder 7. Here, in the embodiment of FIG. 1, the lower cylinder 91 is F
C (frequency generator) board 16. Mounting plate 18. Zagane 15
．． A leaf spring 17 is secured with a screw 16. on the other hand,
In the embodiment shown in FIG. 2, the leaf spring 17 is attached to the motor mounting plate 1Bf.
The mounting plate 18 is crimped with a screw 21, and the mounting plate 18 is crimped with a countersunk 15.
It is screwed to the lower cylinder 9 via a screw 16.

Here, in the respective projections of the mounting plate 18 and the motor holder 19 (the span part of the mounting plate 18 and the extension part of the stator of the motor holder 19), for example, screws (not shown), etc.
As mentioned above, the mounting plate 18 is integrated with the lower cylinder 9 through the screws 131. As a result, the upper cylinder 1, the lower cylinder 9, and the motor holder 19 are integrated into one assembly. It becomes.

Next, the attachment of the above cylinder to the CC base 14 will be explained. The lower cylinder 9 is supported by the CC base 14, and the other end of the leaf spring 17 is supported by the CC base 14.
CC is secured by tightening the top screw (not shown)
The cylinder assembly is integrally fixed onto a chassis (not shown) to which the base 14 is screwed. Here, the CC base 14 is attached to the mounting plate 18. The motor holder 19 has a structure in which a protruding portion is cut through the motor holder 19, and a surface (protruding portion) for receiving the cylinder is provided.

Further, the cylinder motor holder 19 is cut by the cylinder receiving surface of the CC base 14 so that the cylinder assembly can be directly attached from the top surface of the chassis.

Next, see Figures 6 and 7 for instructions on how to assemble the cylinder and how to inspect the chassis for the cylinder assembly.
Also, the position of the notch in the motor holder will be explained.

First, referring to FIGS. 3 and 4, the upper cylinder 1,
A motor holder 19 is integrated with a lower cylinder 9 provided with cutout holes 9a and 9b, and provided with cutouts 19a, 19b, 19c and protrusions 19d and 19e.
A mounting plate 18 having a protrusion (span part) similar to the motor holder 19 is provided on top of the mounting plate 18 (17a, 17b).

A leaf spring having a protruding portion (span portion) of 17c is placed. In the embodiment shown in FIG. 6, screw holes 17d, 17e, and 17f are provided in the mounting plate 18 and the leaf spring 17.
, 17g is provided. On the other hand, in the embodiment shown in FIG. 4, the mounting plate 1B is provided with four holes similar to those described above, and the leaf spring 17 is provided with notches 17d, 17e, 17.
f, 17g%.

Then, attach the leaf spring 17 and the mounting plate 18 to the upper and lower cylinders 1.
．． 9 and motor holder 19 (scissors, screw 13
(shown in Figure 1) through the screw holes (in the case of Figure 6) or notches (in the case of Figure 4) 17d, 17e, 1
7f.

17g) Pass through this and screw in the lower part of the lower cylinder 9. Here, in the embodiment shown in FIG. 6, the leaf spring 17 is integrally screwed to the lower cylinder 9 with the screw 16 through the seat ring 15, and in the embodiment shown in FIG. At the 817h and 17i positions, caulk the mounting plate 18 with the pins 21, and attach the mounting plate 18 to the lower cylinder 91 with the screws 13 through the countersunk 15 at the notch.
It is screwed in place and held together.

Next, FIG. 5 shows the process of attaching the cylinder assembly to the CC base 14 on the chassis 22 during mass production assembly. First, when installing the cylinder assembly onto the cylinder 22 (here, the motor holder 19), through the notches 19a, 19b, 19c,
The shilling receiving surfaces 14i, 14g, and 14h are the first
Assemble to receive the Q-cylinder as shown in the figure and Fig. 2. and Q) protrusion 14i on CC base 14,
14g are inserted into the notches 9a, 9b (shown in FIGS. 3 and 4) to prevent the cylinder assembly from rotating about the shaft 5.

Figure 6 shows the motor holder (notches 19a, 19
b.

A specific example is shown in which 19cf is provided, and the above notches are all motor coils 19f, 19g, 19h, 19i.
, 19j, 19 (boundary) ζ is formed. In addition, 191 is a flexible board of the above-mentioned coil, 19
d and 19e indicate protrusions (extension parts) of the motor holder. At this time, install motor holder 19 & 18 (/J
The protrusions 19d and 19e are located in the CC base 14ω notch 1.
4j and 14k, and the cylinder assembly and chassis 22 are assembled together. Here, as shown in FIG. 7, the CC base 14 is located at six points 14a on the chassis 22.

Ift), screwed at 14c. And leaf spring ends (span portions of leaf spring 17) 17a, 17b,
17C is the screw hole 14e on the CC base 14, 1
4f, 14d (shown in Figures 3, 4, and 5) (screwed), and the cylinder assembly
Next, FIG. 8 shows a camera integrated type V using the above cylinder.
It is a diagram showing a mechanical part of the TR. Here, a cassette consisting of a supply reel 27 and a take-up reel 26) 28
), the tape 31 is driven by the capstan 34a and the pinch roller 55, and the tape 31 is driven by the supply 1111 reel 2.
The tape 51 is pulled out from 7, passes through the kite 32° 30, the entrance guide roller 29, passes through the cylinder 1, and reaches the exit 0I.
Ij Kiterolla 33. Passing through the capstan 64a and the pinch roller 55, the kite 36.37.23.24.25
, and is wound onto the take-up reel 26f.

〔Effect of the invention〕

As explained in detail above, the cylinder device ζ of the present invention integrates the cylinder part and the motor via the mounting plate and a leaf spring having a span part that protrudes outward from the cylinder diameter. cylinder assembly 1.1 f,
If the cylinder diameter is small and the cylinder motor diameter is approximately the same as or larger than the cylinder diameter, the cylinder board ζ on the top surface of the chassis can be attached to the board using the span part of the leaf spring. The integrated assembly of the cylinder and motor can be easily installed from the top, and at this time, the elasticity of the leaf spring allows it to be installed without creating a thin, low-rigidity shape. It has excellent effects such as being able to assemble two 'l'R' units.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views showing first and second embodiments of the cylinder device of the present invention, and FIGS. 6 and 4 are cross-sectional views showing a cylinder and a cylinder in the first and second embodiments. The motor is assembled and the ωCC pace ζ is mounted on the chassis.
5 is a perspective view showing the process of assembling the cylinder assembly to the CC base on the chassis, FIG. 6 is a sectional view showing the position of the notch in the motor holder ζ, and FIG. FIG. 7 is a perspective view of the cylinder assembly mounted on the chassis, and FIG. 8 is a top view showing the mechanism of the camera-integrated VTR using the cylinder device. 1... Upper cylinder 2.3, 6.13・Screw 4・
... Boss 5 ... Rotating shaft 7 ... Head base 8 ... Deinuk 9 ... Lower cylinder 10
...Bearings 11, 12...Rotary transformer 14...CC base (board) 15...Seat socket 16...FG board 17.
・・Leaf spring 18・Motor mounting plate 19・・Motor holder (stator) 20・・Bearing 21・・Bin 22・・・
Chassis (´ Agent Patent Attorney Osamu Ogawa

Claims (1)

[Scope of Claims] 1. A cylinder part consisting of an upper and lower cylinder and equipped with a rotating head, a cylinder motor having a diameter substantially the same as or larger than that of the cylinder part, and fixed in order to the lower part of the lower cylinder. a plate spring and a motor mounting plate, each having a span portion projecting outward beyond a diameter of the cylinder portion;
By forming an extension on the stator of the cylinder motor that protrudes outward beyond the diameter of the cylinder, and connecting the extension to the span of the mounting plate, the cylinder can be attached to the leaf spring and the mounting plate. A cylinder device comprising: means for integrating the cylinder motor with the cylinder motor via a plate; and mounting means for mounting the integrated cylinder portion and cylinder motor assembly to the base plate via the span portion of the leaf spring. 2. The cylinder device according to claim 1, wherein the base plate is provided with an opening having a shape through which the cylinder motor can pass as well as an extension of the stator of the cylinder motor and a span of the mounting plate. 3. The cylinder device according to claim 2, wherein a receiving surface for receiving the lower surface of the lower cylinder is formed on the substrate around the opening. 4. The cylinder device according to claim 3, wherein a notch is provided on the side surface of the stator of the cylinder motor at the same position as between the motor poles, through which the receiving surface can pass.