JPH0432085A - Camera for using film with magnetic storage part - Google Patents

Abstract

PURPOSE:To smoothly and instantly execute the motion of a head fixing member against a fluctuation of a film by constituting the camera so that it is constituted of a first to a third wiring parts and a first and a second wiring parts are deformed freely in connection with a motion which follows up the fluctuation of the film. CONSTITUTION:A flexible printed board 12 is constituted of a connecting part 12a to a magnetic head 11, an amplifying circuit mounting part 12b, a wiring part 12c to a camera main body 1 side, a bend part 12d, and a mainbody side fixed part 12e. Also, the connecting part 12c and the bend part 12d are not fixed to any part, and other parts are fixed to a head fixing member 8 or the camera main body. In the case a film is bent and goes into a film pressure plate 7, in accordance with an inclination of the film, the head fixing member 8 for fixing the magnetic head 11 is also bent and follows up. In such a way, a motion of the head fixing member against a fluctuation of the film can be executed smoothly and instantly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an improvement in a camera using a magnetic storage member film having a magnetic head for writing information to or reading information from a magnetic storage section provided on the film. .

(Background of the Invention) Conventionally, a camera that uses a magnetic head to write information to and read information from a magnetic storage section provided on a film has been disclosed in US Pat. No. 4,864,332 and the like. The applicant has also proposed various mechanical configurations for accurately operating the magnetic head in conjunction with film feeding.

However, the above conventional example had the following problems.

In other words, the conventional example does not disclose anything about the mounting form of the magnetic head, but simply brings the output line of the magnetic head to the main body side. However, the member that fixes the magnetic head must respond smoothly and immediately to vertical movement and tilting of the film, but depending on the mounting method, the magnetic head fixed to the fixing member and the camera body side may The fixing member may not move smoothly due to the stiffness of the flexible printed circuit board for transmitting and receiving signals with the control unit.

(Object of the Invention) An object of the present invention is to solve the above-mentioned problems and provide a camera using a magnetic memory member film that can smoothly and immediately move a head fixing member in response to film fluctuations. .

(Features of the Invention) In order to achieve the above object, the present invention provides a flexible printed circuit board in which the wiring part from the magnetic head to the camera body side is not fixed to the camera body but extends from near the operating axis of the head fixing member. a first wiring section that is not fixed to the camera body and extends in a direction perpendicular to the film surface;
a second wiring section continuous to the wiring section; a third wiring section extending parallel to the film surface and continuous to the second wiring section and fixed to the camera body; The apparatus is characterized in that the first and second wiring parts are configured to freely deform as the head fixing member moves to follow film fluctuations.

(Embodiments of the Invention) Hereinafter, the present invention will be described in detail based on illustrated embodiments.

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a perspective view of the configuration of the main parts, FIG. 2 is a back view of the camera, and FIG. The sectional view of Figure 2 is taken from the 4th
The figures each show a sectional view taken along line BB in FIG.

In these figures, 1 is the camera body, 2 is the finder, 3 is the cartridge chamber, 4 is the fork, 5 is the spool chamber,
Reference numeral 6 indicates a film provided with a magnetic memory portion, and reference numeral 7 indicates a pressure plate having portions 7a and 7b on which the springs 9 and 10 are attached. Reference numeral 8 denotes a head fixing member, which is fixed to the camera body 1 through a hole 8a with a stepped screw 15.Since the extremely large hole 8a is a long hole, it can be rotated around the stepped screw 15, and can also be moved vertically. is also possible. Further, the head fixing member 8 has protrusions 8b and 8c that come into contact with the ends of the film 6, or hook parts 8e and 8f.
Since it is pulled by springs 9 and 10, it always moves in accordance with the fluctuations of the film 6. Furthermore, the head fixing member 8 has two protrusions 5ci1 and 8d2.
, two screw holes 8d3, 8d, and a head fixing hole 8d5, and a holding plate 14 holding a magnetic helad 11 in the head fixing part 8d is connected to the projection sct.
,,8d2 is fitted and positioned, and fixed with screws. Further, the head fixing member 8 has cutouts at both ends of the pressure plate 7 made as long as possible so that the film mounting portions (protrusions 8b, 8c) protrude in order to reliably cope with the inclination of the film roll. Further, the operating axis of the head fixing member 8 is arranged approximately at the center.

12 is a flexible printed circuit board, which includes a connection part 12a with the magnetic head 11, an amplifier circuit mounting part 12b, and a camera body 1.
Wiring part 12c to the side, bending part 12d1, main body side fixing part 12
The connecting part 12c and the bent part 12d are not fixed anywhere, and the other parts are fixed to the head fixing member 8.
Or it is fixed to the camera body 1. Therefore, the bent portion 12d is floating in the air as shown in FIG.

In the above configuration, when the film 6 bends by a certain angle θ and enters the pressure plate 7 as shown in FIG. Follow. At this time, the left side of the bent portion 12d of the flexible printed circuit board 12 is smoothly bent upward as shown in FIG.
movement is not obstructed at all.

In addition, the bending portion 12d is also used for vertical movement of the head fixing member 8.
Since the head fixing member 8 can be freely bent up and down, the movement of the head fixing member 8 is not hindered. In addition, since the wiring portion 12c to the camera body 1 side is made to come out from approximately the center (near the operating axis of the head fixing member 8), the flexible printed circuit board 1
It is possible to reduce the amount of movement accompanying the movement of the head fixing member 8 in No. 2.

5 to 7 show a second embodiment of the present invention, in which FIG. 5 is a perspective view of the configuration of the main parts, FIG. 6 is a back view of the camera, and FIG. A sectional view taken along line C-C in FIG. 6 is shown.

In these figures, 16 is a flexible printed circuit board, and a connection part 16a with the magnetic helad 11.

Amplifier circuit mounting part 16b, wiring part 16 to camera body 1 side
c, a bent part 16d and a main body side fixing part lee; the connecting part 16c and the bent part 16d are not fixed anywhere, and the other parts are fixed to the head fixing member 8 or the camera body 1. has been done.

The wiring section 16c of the flexible printed circuit board 16 connected to the camera body 1 has a shape with many slits as shown in FIG. By doing this, the stiffness of the flexible printed circuit board 16 becomes extremely soft. Bring this to the camera body 1 side so as to draw a slightly rounded surface as shown in Fig. 7, and bend the main body side fixing part 16e, which is continuous with the bent part 16ci, as shown in the figure. By fixing the head fixing member 8 to the first side, the vertical movement of the head fixing member 8 is absorbed by the wiring portion 16c having the soft rounded surface.
As shown in the figure, the thinly cut shape of the wiring portion 12c makes it easily deformable even when the head fixing member 8 rotates, and the movement of the head fixing member 8 due to the fluctuation of the film 6 is inhibited. Things will go away.

According to this embodiment, the part for wiring to the camera body side of the flexible printed circuit board on which the magnetic head is mounted is
The head fixing member is extended from near the operating center toward the camera body, bent at a right angle to the film surface, and then extended parallel to the film running direction, and this tip is fixed to the camera body. Therefore, the portion bent in a direction perpendicular to the film surface deforms in response to the vertical movement and rotational movement of the head fixing member, and therefore, the movement of the head fixing member relative to the film can be smoothly and immediately accommodated. becomes possible. Further, the same effect can be obtained by forming the operating part (wiring part 16C) of the flexible printed circuit board into a shape with a number of thin slits.

(Effects of the Invention) As explained above, according to the present invention, the wiring portion from the magnetic head of the flexible printed circuit board to the camera body side is not fixed to the camera body but extends from near the operating axis of the head fixing member. a first wiring section that is not fixed to the camera body and extends in a direction perpendicular to the film surface;
a second wiring section continuous to the wiring section; a third wiring section extending parallel to the film surface and continuous to the second wiring section and fixed to the camera body; Since the first and second wiring parts are configured to freely deform as the head fixing member moves to follow the film variation, the head fixing member moves smoothly and immediately in response to the film variation. be able to.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of the main parts in the first embodiment of the present invention, FIG. 2 is a rear view of the camera, FIG. 3 is a sectional view taken along line A-A in FIG. 2, and FIG. Figure 2 B-B sectional view,
FIG. 5 is a perspective view of the configuration of the main parts in the second embodiment of the present invention, FIG. 6 is a rear view of the camera, and FIG.
It is a sectional view taken along the line C-C in FIG. 1... Camera body, 7... Pressure plate, 8.
...head fixing member, 9.10 ... spring, 11 ... magnetic head, 12.16 ...
・Flexible printed circuit board, 12c, 16cm---
--Wiring part, 12d, 16d-...Bending part, 12e
, 16e... Body side fixed part.

Claims (1)

[Claims] (1) A magnetic head that writes information to or reads information from a magnetic storage section provided on the film; a head fixing member that holds the magnetic head and is configured to move to follow fluctuations in the film; and the head In a camera using a magnetic memory member film including a flexible printed circuit board for wiring the magnetic head held on a fixed member and a camera body side control section, from the magnetic head of the flexible printed circuit board to the camera body side. a first wiring section that is not fixed to the camera body and extends from near the operating axis of the head fixing member; a first wiring section that is not fixed to the camera body and extends perpendicular to the film surface; A second wiring section continuous to the first wiring section; and a third wiring section extending parallel to the film surface and continuous to the second wiring section, and fixed to the camera body. A camera using a magnetic memory member film characterized by: