JP2002268123A - Connection structure of flexible board arranged in camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the connection structure of a flexible board with which a board terminal part of the flexible board arranged in a camera can be excellently joined by soldering. SOLUTION: A slide brush 26 which detects the zoom position of a lens unit 102 is supported by a support member 28. The support member 28 has a pedestal 28a with a taper 28b formed in a single body and a flexible board 34 is adhered to the taper surface 28b of the pedestal 28a with a both-sided adhesive tape 36. The substrate terminal 34a of the flexible board 34 is made to abut against a brush terminal part 26a of the slide brush 26 and joined by solder 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure of a flexible substrate provided in a camera, and more particularly to a connection structure of a flexible substrate fixed by a double-sided tape.

[0002]

2. Description of the Related Art Japanese Patent Laying-Open No. 11-84215 discloses a lens device provided with a zoom position detecting device for detecting a zoom position. The zoom position detecting device includes a code plate that rotates when zooming, and a sliding brush fixed to slide on the code plate, and reads a conductor pattern formed on the code plate with the sliding brush. Thus, the zoom position is detected.

As shown in FIG. 6, a sliding brush 1 is embedded in a support member 2 made of plastic, and is fixed to a base plate 3 of a lens device via the support member 2. A base end portion 1a of the sliding brush 1 extends from the support member 2, and a substrate terminal portion 4a of the flexible substrate 4 is joined to the base end portion 1a by solder 5.

When the base end portion 1a of the sliding brush 1 is soldered to the terminal portion 4a of the flexible substrate 4, the flexible substrate 4 is temporarily fixed to the support member 2 with a double-sided tape 6.

[0005]

However, when the flexible substrate 4 is adhered to the supporting member 2 with the double-sided tape 6, the thickness of the double-sided tape 6 is set between the base end 1a of the sliding brush 1 and the substrate terminal 4a. Since a gap corresponding to the height t is formed, there is a problem that the solder 5 enters the gap. For this reason, the solder 5 is divided into the substrate terminal portion 4a side and the base end portion 1a side, and there is a possibility that a bonding failure may occur.

The present invention has been made in view of the above circumstances, and provides a connection structure of a flexible substrate that allows a board terminal portion of a flexible substrate provided in a camera to be satisfactorily joined by soldering. The purpose is to:

[0007]

In order to achieve the above object, the present invention provides a flexible substrate provided in a camera, and a conductive terminal plate joined to a substrate terminal portion of the flexible substrate by soldering. A supporting member that supports the terminal plate and the flexible substrate is bonded to the flexible substrate via an adhesive member, wherein a base having a taper is interposed between the supporting member and the flexible substrate, By tilting the flexible board with respect to the support member, the board terminal portion is brought closer to the terminal plate and soldered.

According to the present invention, since the flexible board is inclined with the pedestal interposed to bring the board terminal portion close to the terminal board, the solder is not divided into the board terminal section side and the terminal board side.
Does not cause bonding failure.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a connection structure for a flexible substrate disposed in a camera according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an external view of an electronic still camera 101 to which a flexible substrate connection structure according to the present invention is applied, and a camera body 10 of the electronic still camera 101.
1A is formed in a rectangular box shape. A lens device 102, a finder window 103, a strobe light control sensor 104, and a self-timer lamp 105 are provided at predetermined positions on the front surface of the main body 101A. A pop-up strobe 106 and a release switch 107 are provided on the upper surface of the main body 101A, and a finder eyepiece, a liquid crystal display panel, and operation keys (not shown) are provided at predetermined positions on the back surface of the main body 101A. It is established. The lens device 102 is of a retractable / extending type, and the lens barrel 12 and the moving barrel 14 (see FIG.
It is fed forward (toward the subject) from the front of 1A.

FIG. 2, FIG. 3 and FIG.
02 is a front view, a left side view, and a plan view. As shown in these drawings, the lens device 102 includes a lens barrel 12, a moving barrel 14, a fixed barrel 16, and a rotating barrel 18.

A gear portion 18a is formed on the outer periphery of the rotary cylinder 18, and the gear portion 18a is provided with a zoom motor 20a.
Is transmitted. The rotating cylinder 18 is rotated while being in contact with the outer periphery of the fixed cylinder 16 by transmitting the driving force of the zoom motor 20. The moving barrel 14 moves in the direction of the optical axis with respect to the fixed barrel 16 while rotating in conjunction with the rotation of the rotating barrel 18. The lens barrel 12 moves straight in the direction of the optical axis with respect to the movable barrel 14 as the movable barrel 14 rotates.

The lens unit 102 is changed from the retracted position to the telephoto position by rotating the rotary barrel 18 in the “storage rotation range” from the “initial position” to the “intermediate position”. In addition, by rotating the rotary cylinder 18 in the "magnification rotation range" from the "intermediate position" to the "end position", the state is changed from the tele position to the wide position.

The lens device 102 has a code plate 24 attached to the outer peripheral surface of the rotary cylinder 18 and a sliding brush 2 slidably fixed to the code plate 24.
, A zoom position detecting device comprising: A conductive pattern is formed on the track on which the sliding brush 26 slides on the code plate 24, and the zoom position is detected by reading the conductive pattern by contact with the sliding brush 26.

As shown in FIG. 5, a tip 26a of the sliding brush 26 is curved in an arc toward the code plate 24, and the tip 26a slides on the code plate 24. The sliding brush 26 is made of a plastic supporting member 28.
Embedded in the brush terminal portion 26 from the support member 28.
b has been extended. As shown in FIGS. 3 and 4, the support member 28 is fixed to the arm 32 a of the base plate 32 by screws 30.

The base metal plate 32 is attached to the back of the fixed cylinder 16, and the base metal plate 32 is bent 90 ° in front of the lens device 102 to form an arm 32a. A receiving portion 32b is formed at the tip of the arm portion 32a so as to project therefrom.
Is hung on a flange 16a formed at the front end of the head.
Thus, since the arm 32a has a double-support structure in which both ends are supported, the strength is remarkably improved, and the deformation of the arm 32a is prevented. That is, the arm 32
If there is no receiving portion 32b at the tip of
a is supported only on the base end side, so that the arm 32a may be deformed when a force is applied to the arm 32a to tighten the screws 30,30. On the other hand, the arm portion 32a provided with the receiving portion 32b and having a double-support structure does not deform even when the screw 30 is tightened.

As shown in FIG. 5, the support member 28 is integrally formed with a pedestal 28a. The pedestal 28a has a triangular cross section, and has a taper 28b inclined toward the brush terminal 26b of the sliding brush 26.

A flexible substrate 34 is bonded to the taper 28b of the pedestal 28a via a double-sided tape 36. The flexible board 34 has a protruding board terminal 3
4a, and the substrate terminal portion 34a is attached so as to match the position of the brush terminal portion 26b of the sliding brush 26. The board terminal portion 34a and the brush terminal portion 26b are soldered and electrically connected. Flexible board 34
Is connected to a control unit (not shown) or the like via a connector unit 35 shown in FIG.

Next, the lens device 10 constructed as described above
2 will be described.

Since the pedestal 28a is provided between the flexible substrate 34 and the support member 28, the flexible substrate 34 is disposed obliquely along the taper 28b of the pedestal 28a. Then, the substrate terminal portion 34 a of the flexible substrate 34 is applied to the brush terminal portion 26 b of the sliding brush 26. When soldering is performed in this state, since there is no gap between the board terminal portion 34a and the brush terminal portion 26b, the solder 38 can be satisfactorily joined without breaking. That is,
Since there is no gap corresponding to the thickness of the double-sided tape 36 between the board terminal portion 34a and the brush terminal portion 26b, the board terminal portion 34a and the brush terminal portion 26b can be satisfactorily joined.

Since the flexible substrate 34 is inclined with respect to the brush terminal 26b, the thick double-sided tape 36
Is used, the pedestal 2 having a large angle of the taper 28b
By using 8a, the board terminal portion 34a can be brought into contact with the brush terminal portion 26b, and soldering can be performed well. That is, regardless of the thickness of the double-sided tape 36, the substrate terminal portion 34a and the brush terminal portion 26b
Can be satisfactorily soldered.

In the above-described embodiment, the pedestal 28a having a three-part cross section is used. However, the present invention is not limited to this, and the pedestal 28a may have any shape in which the flexible substrate 34 is inclined.

In the above-described embodiment, the pedestal 28a
Although the support member 28 and the support member 28 are integrally formed, the present invention is not limited to this, and the pedestal 28a and the support member 28 may be formed separately. In this case, according to the thickness of the double-sided tape 36, if the pedestal 28a having a different angle of the taper 28b is detachably attached to the support member 28, even when the type of the double-sided tape 36 is changed, only the pedestal 28a is used. It can be easily handled by exchanging.

The above-described embodiment is an example in which the board terminal portion 34a of the flexible substrate 34 is joined to the brush terminal portion 26b of the sliding brush 26. However, the present invention is not limited to this. The present invention can be applied to any part to be attached.

[0025]

As described above, according to the connection structure of the flexible substrate provided in the camera according to the present invention,
Since the flexible board was inclined with the base interposed,
Regardless of the thickness of the double-sided tape, the board terminal portion and the terminal plate come close to each other, and the soldering can be performed well.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electronic still camera to which a connection structure of a flexible substrate according to the present invention is applied.

FIG. 2 is a front view showing the lens device shown in FIG. 1;

FIG. 3 is a left side view showing the lens device shown in FIG. 2;

FIG. 4 is a plan view showing the lens device shown in FIG. 2;

FIG. 5 is a side sectional view showing a connection structure of a flexible substrate.

FIG. 6 is a side sectional view showing a connection structure of a conventional flexible substrate.

[Explanation of symbols]

101: electronic still camera, 102: lens device, 12
... Lens tube, 14 ... Moving tube, 16 ... Fixed tube, 18 ... Rotating tube, 24 ... Code plate, 26 ... Sliding brush, 26b ... Brush terminal part, 28 ... Support member, 28a ... Pedestal, 28b ... Taper, 34 ... flexible board, 34a ... board terminal part,
36: double-sided tape, 38: solder

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // H04N 101: 00 H04N 101: 00 (72) Inventor Masaaki Orimoto 3-11-46 Izumi, Asaka-shi, Saitama No. Fujisha Shin Film Co., Ltd. F-term (reference) 2H100 BB06 BB11 5C022 AA13 AC70 AC77 AC78 5E336 AA04 BB01 BB12 CC60 GG06 5E348 AA29 AA30

Claims (3)

[Claims] 1. A flexible board disposed in a camera, a conductive terminal board joined to a board terminal portion of the flexible board by solder, and an adhesive member supported by the flexible board and supporting the terminal board. And a support member adhered through, in the camera, between the support member and the flexible substrate, by interposing a pedestal having a taper, by inclining the flexible substrate with respect to the support member, A connection structure for a flexible board provided in a camera, wherein the board terminal portion is brought close to the terminal plate and soldered. 2. The structure according to claim 1, wherein the pedestal is formed integrally with the support member. 3. The flexible substrate connection structure according to claim 1, wherein the support member is attached to a base sheet metal, and both ends of the base sheet metal are supported by a camera body.