JPS61233726A - Camera - Google Patents

Abstract

PURPOSE:To constitute the electric circuit of a camera consisting of a camera body and electric parts on its rear cover by connecting wiring which has good conductivity and high durability by connecting the camera body and electric parts by an electric wire run through a hinge shaft which couples the rear cover with the camera body. CONSTITUTION:One terminal of a lead wire 6 is soldered to a terminal 5a provided to a substrate 5 and the other terminal runs inside a pipe-shaped spring 3a pressed in a hinge part and in a U-shaped groove between hinges 2a and 2b and then connected to the terminal of a data recorder 4 in contact with the internal surface of the rear cover 2. The lead wire 6 runs in the center of the hinge shaft, so its length is held constant regardless of the angle of the rear cover 2 and consequently the need to provide inflection in consideration of the opening of the rear cover 2 is eliminated. Consequently, the extension and contraction of the lead wire 6 which are not preferable in terms of its durability are not caused and troubles of other functions due to inflection are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera in which the connection of electrical components disposed on the camera body and back cover is improved.

[Conventional technology]

Cameras configured so that the date can be imprinted on the screen at the same time as the photo is taken generally have a date module placed on the camera back.
The camera is designed to record by sending trigger signals for switching the power output and timing for recording.

Such cameras require an electrical connection device between the camera body and the back cover, and conventionally, it has not been common practice to provide contacts on the camera body side and the back cover side that can send and receive respective signals. A connector device was used in which a circuit for the entire camera was formed by closing the contacts when the back cover was closed.

[Problem that the invention seeks to solve]

However, the above-mentioned contacts require gold plating, and one of the contacts must be biased by a spring in order to maintain a constant contact pressure.The number of parts increases and the parts become more compact, making the cost negligible. It has become something that does not exist. Also, in terms of performance, since the contacts are exposed, there is a high risk of poor conduction due to dirt or foreign matter, which is problematic.

In addition, the connection method using lead wires is considered difficult to implement with cameras whose back cover opens and closes on a hinge, as the distance from the camera body changes significantly, which can cause large bends in the lead wires. .

The present invention aims to provide a camera in which the lead wire wired between the camera body and the back cover does not expand or contract even when the back cover is opened or closed, as a result of improvements made to the wiring method in order to solve this problem. That is.

[Means for solving problems]

The above object has been achieved by a camera that has electrical parts in the camera body and back cover, and is characterized in that the electrical connection between the two is made by an electric wire passed through a hinge shaft that connects the back cover to the camera body. be done.

〔Example〕

An embodiment of the invention is shown in FIGS. 1 and 2.

FIG. 1 shows a camera hinge device according to the present invention, in which a pair of upper and lower hinges 1a are provided near the side edge of the camera body 1.
The hinges 2m and 2b of the back cover 2 are fitted inwardly between the hinges 2m and lb), and a pipe-shaped spring pin is inserted from above or below against the hinges 1a and tb)c at the position where their respective shaft holes match. 3m and 3b are press-fitted and attached.

The spring pins 3a and 3b are the hinge 2a.

However, since the shaft holes of the hinges 2a and 2b are formed slightly larger than the shaft holes of the hinges 1a and lb, the back cover 2 is It can be rotated about the spring pins 3a and 3b as support axes, and thereby can be opened and closed with respect to the camera body 1.

A date recording device 4 is disposed on the inner surface of the camera back 2, and a control unit for operating the date recording device 4 is provided on a board 5 that is attached to the upper part of the camera body 1. In the camera of the present invention, these connections are not necessary. This is done by a lead wire 6 passing through the spring pin 3a.

That is, one end of the lead 116 is soldered to the terminal 5a provided on the board 5, and the other end passes inside the pipe-shaped spring pin 3, which is press-fitted into the hinge part, and then the lead 116 is soldered to the terminal 5a provided on the board 5, and the other end passes through the inside of the pipe-shaped spring pin 3, which is press-fitted into the hinge part. It is connected to the terminal of the date recording device 4 through a U-shaped groove in the middle thereof, and then closely attached to the inner surface of the back cover 2.

According to such a wiring route, the lead wire 6 installed between the camera body 1 and the back cover 2 passes through the center of the hinge shaft, so the length between the leads is the same regardless of the angle of the back cover 20. Therefore, there is no need to adjust the flexure in anticipation of the opening of the back cover 2.

As a result, the lead wire 6 is not subjected to undesirable expansion and contraction in terms of durability, and the disadvantages such as bending and interfering with other functions are also prevented.The invention is applicable to devices other than date recording devices. It can also be applied to electrical components, especially when wiring a large number of lead wires, prepare a thin-walled pipe with a large inner diameter and use it as a hinge shaft instead of the standard spring pin. It is also possible.

〔Effect of the invention〕

According to the present invention, it is possible to provide a camera in which an electric circuit between the camera body and the back cover can be constructed by connecting wires with good conductivity and high durability.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the hinge part of the camera of the present invention. Figure 2 is an enlarged view of the main part. 1...Camera body la, lb, 2m, 2b-hinge 2...Back cover 3a, 3b...Spring pin 4...Date recording device 5・・・・・・・・・Board 5s・・・・・・Terminal

Claims (1)

[Claims] A camera having electrical parts in a camera body and a back cover, characterized in that the electrical connection between the two is made by an electric wire passed through a hinge shaft that connects the back cover to the camera body.