JP2522301B2 - Data input device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a data input device for inputting a plurality of types of data.

2. Description of the Related Art Recently, a dial type device has been proposed as a data input device such as a camera. In this known data input device, in order to input a plurality of types of data with one dial, the dial is moved and data is input while simultaneously operating different data type selection members.

Problems to be Solved by the Invention However, in the above-described data input device, since another data type selection member must be provided in addition to the operation dial, the number of switch members increases and the production cost also increases. In addition, it is troublesome to operate the two members at the same time, and the operation is difficult, so that there is a disadvantage that the data cannot be input promptly.

Therefore, an object of the present invention is to provide a data input device capable of inputting a plurality of types of data by operating only one dial type operation member.

Means for Solving the Problems In order to achieve the above object, a data input device according to the present invention is a data input device capable of inputting a plurality of types of data, which rotates about a predetermined axis, and further, One operation member that is displaced in a direction orthogonal to the direction of rotation,
It has data selecting means for selecting a data type by operating the displacement of the operating member, and data changing means for changing the value of the data selected by the data selecting means by operating the rotation of the operating member.

Action According to the data input device described above, the data input device has one operating member that rotates about a predetermined axis and that is displaced in a direction orthogonal to the direction of rotation. By selecting a type and operating the rotation of the operating member, the value of the data selected by the data selecting means can be changed.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, a case where the embodiment of the present invention is applied to a camera will be described with reference to FIG. The body (2) of the camera (1) has a film rewind crank (3) at a position corresponding to the left end of the camera (1), a shooting mode setting display (4) at the right end, and a film winding lever (5). And the clip cover (6) protruding from the right end to the front.
Is provided with a data input device having a release button (7) and an operation dial (8).

1 to 3 show an embodiment of the present invention. First, FIG. 1-a is a sectional view taken along the line AA 'in FIG. 10 of this embodiment. In this embodiment, the data input device is used as a device for setting any two of the shutter speed, film sensitivity, aperture value, etc. in the camera. The body has an opening (2
A space (10) having a cylindrical shape and a lower part thereof further widened is provided inside the opening (2a).

In the space (10), the support shaft (1
1) is provided, and a protrusion (12) is provided at this end by a biasing member (not shown) biased in a direction opposite to the center direction. The support shaft (11) has a disc-shaped operation dial (13) centered on the center (0) in the circumferential direction,
That is, it is rotatably supported so as to rotate on the first rotation surface perpendicular to the paper surface. A guide groove is provided on the inner surface (2c) of the body along the path along which the protrusion (12) of the support shaft moves, and the support shaft (11) is perpendicular to the circumferential direction, that is, in the plane of the drawing. A path is formed for rotating an angle θ on parallel rotating surfaces. Also, this protrusion (12) is the first-
Clicks (14a, 14b) are provided on the inner surface portion corresponding to the normal position shown in FIG. a and the position inclined by θ degrees shown in FIG. 1-b, and the biasing force of the biasing member is provided. Due to this, the projection is depressed in this, and it is configured so as not to move from this position unless the operation dial (13) is tilted by applying force.

The operation dial (13) projects outward from the opening (2a) so that the operation dial (13) can be manually rotated from the outside of the body in the circumferential direction and the direction orthogonal to the circumferential direction, and the opening (2a) is provided. Is open as much as the operation dial (13) can be rotated by θ degrees. The operation dial (13) comes close to two reading members (15a, 15b) provided on a surface forming a space below each cylindrical space at two positions, a normal position and a position inclined by θ degrees.

A semi-cylindrical dustproof member (16) is provided in the space (10) in the immediate vicinity of the inner side surface (2c) of the body so as to prevent dust and the like from entering the support shaft (11). ), The shaft is tilted by θ degrees when it is tilted together with the support shaft. The dustproof member (16) has an opening (16a) for allowing the operation dial (13) to project to the outside of the body.
Is provided.

A biasing member (17) is provided between the dustproof member (16) and the body (2), and the biasing member (17) is provided so that the operation dial (13) returns to the normal position. However, since the biasing force of this biasing member is weaker than the acting force of the click, when the protrusion (12) fits into the click (14), the operation dial will be in the normal position even if you release your hand. I can't go back to.

FIG. 2 shows the operation dial according to this embodiment. The operation dial (13) has a 2-bit gray code (18) formed on each side.

In the space extending downward in the space (10), when the operation dial (13) is in the normal state of FIG. 1-a, the first reading member () is located at a position where the gray code (18) of the operation dial is read. 15a) is provided. On the other hand, when the operation dial (13) is in the position shown in FIG. 1-b which is inclined by an angle θ on the opposite surface of this inner surface, the gray cord (18) on the other surface of this operation dial (13) is shown. ) Is read at a position where a second reading member (15b) is provided. Third
The reading members (15a, 15b) are shown in the figure. These reading members (15a, 15b) are photoreflectors (21) composed of a light emitting diode (19) and a phototransistor (20).
The phototransistor (20) detects whether the light emitted from the light emitting diode (19) is reflected light from the gray code (18) and outputs the light. At this time, the phototransistor (20) continues to output a signal corresponding to the sequential change of the 2-bit gray code, and by reading this, the change amount and the displacement amount from the initial position can be detected.

Next, the operation of the data input device in this embodiment will be described. The operation dial (13) in the normal position is rotated with respect to the first rotation shaft. The phototransistor (20) of the reading member (15a) outputs a signal corresponding to the change of the gray code (18), and the displacement amount is read to input the first data. Next time you enter the second data,
The operation dial (13) is inclined by θ degrees parallel to the paper surface against the urging force of the urging member (17) and the force of the click (14a). At this time, the support shaft, on which the operation dial is supported, rotates by θ degrees in a direction perpendicular to the circumferential direction, and the projection (12) at the end moves along the groove and is tilted at θ degrees, and clicks ( 14b) and it is semi-fixed. The operation dial (13) approaches the second reading member (15b) here, and the second reading member is moved by the movement of the gray code provided on a surface different from that used when the first data is input. Read the second data using (15b). When returning the operating dial (13) to the normal position again, if the protrusion (12) overcomes the click (14) by this, the rest is naturally returned to the normal position by the biasing force of the biasing member (17). Return.

FIGS. 4-a and 4-b show another embodiment according to the present invention. In this embodiment, when the data input device is not used, the operation dial (13) is set to a neutral position which does not approach either of the reading members (15a, 15b).

In FIG. 4-a, the operation dial (13) is located at the neutral position. In this embodiment, unlike the previous embodiment, three clicks are provided and the biasing members (17a, 17a) are provided.
Place b) on both ends of the dustproof member (16).

The operation of this embodiment will be described. When the operation dial (13) is tilted by θ ′ against the urging force of the urging members (17a, 17b), the protrusion (12) is depressed by the click (14) and the gray code on the operation dial is read by the reading member. Data is input by approaching (15a) and reading the displacement amount of the gray code with the reading member (15a). When the above-mentioned data is input and the end operation dial (13) is pushed out against the force of clicking, the operation dial (13) returns to the initial position, that is, the neutral position by the urging force of the urging members (17a, 17b).

Another embodiment is shown in FIGS. 5-a and 5-b. In this embodiment, a 2-bit gray code is provided not only on both sides of the disc-shaped operation dial (13 ') but also on the circumferential portion, and the operation dial (13') is provided in the lower space of the cylindrical space (10). A third reading member (15c) is provided near the gray code on the circumference of so that 3 types of data can be input.
Configure a data input device. Fig. 5-a shows the state when data is entered using the gray code on the circumference of the operation dial (13), and Fig. 5-b shows the gray code on the disc of the operation dial. Indicates the state when is used and data is input. In these figures, the urging member attached between the body (2) and the dustproof member (16) is omitted.

Another embodiment is shown in FIGS. 6-a and 6-b. In this embodiment, in order to increase the kinds of data that can be input, the gray code reading members (15d, 15e, 15f, 15g, 15h) provided on the circumference of the operation dial (13 ') are provided. Five clicks are provided so that the operation dial can be rotated in five steps, one for each lower space in the space.

In addition, in the above-described embodiment, the light reflector and the photo-transistor are used as the catalyzer, but a brush type reading member or an electromagnetic pattern detecting means may be used.

FIG. 7 shows an embodiment of the circuit according to the present invention. Here, the circuit in the case of two reading members is shown, but the same applies to the case in which more reading members are provided. In this circuit, an input processing circuit (25) for selectively transmitting an output signal from the reading member to a central processing circuit (CPU),
An interrupt generation circuit (2 that notifies the CPU when the output from the first reading member or the second reading member changes.
6) is provided.

When the first data is input from the first reading member (15a), the interrupt generating circuit detects the change and interrupts the CPU. At this point, the CPU does not know which port the data came from. The CPU sends the selected port NO. Signal to the input processing circuit (25), checks whether data is input from port 1 or port 2, and specifies that port. The input processing circuit (25) is the port number from the CPU.
The data specified by the signal is transmitted to the CPU.

Here, when the operation dial is moved and the second data is input from the second reading material (15b), the interrupt generation circuit (26) detects the change and interrupts again. CPU does not know which port the data comes from, so CPU
Sends the selected port NO. Signal to the input processing circuit (25), checks whether data is input from port 1 or port 2, and specifies that port. The input processing circuit (25) transmits the data designated by the port number signal from the CPU to the CPU. FIG. 8 shows another circuit embodiment. In this embodiment, the interrupt generating circuit is not provided, but gray code plate position detecting means (27) for indicating which reading member the gray code is now approaching is provided. Then, the gray code plate position signal output by the gray code plate position detection means (27) is input to the central processing circuit (CPU), from which the CPU is informed of which reading member is currently inputting data. . On the other hand, when the CPU specifies the port number, via port 1,
The first data passes through the input processing circuit (25) and is sent to the central processing unit (CPU).

FIG. 9 shows an embodiment of the gray code plate position detecting means in the above embodiment.

FIG. 9 shows an embodiment of the gray code plate position detecting means. In this embodiment, each of the two clicks (14a, 14b) provided on the body (2) has a pin (2).
8a, 28b) are provided so as to be movable inside the body, and when the projection (12) enters the click (14a, 14b), the pin (28) is pushed, and the first to the second provided in the back. The second switch (29a, 29b) can be closed. When the first switch (29a) is closed, the common input (COM) of the gray code plate position detection circuit (27 ')
And the first input (P ₁ ) conducts. On the other hand, the second switch (29
When b) is closed, the gray code plate position detection circuit (2
The common input (COM) of 7 ') and the second input are conducted. Therefore, the gray code position detection circuit (27 ') is now determined by determining whether the first input (P ₁ ) or the second input (P ₂ ) is in conduction with the common input (COM). It outputs a gray code plate position signal indicating whether it is being used.

The operation of the gravel board position detecting means will be described with reference to FIG. The operation dial (13) moves the first reading member (15
When the first reading member (15a) is moved to input the data set by (a), the protrusion (12) is depressed in the first click (14a), thereby causing the first click (14a). The pin (28a) in 14a) is pushed to close the first switch (29a) and the common input (C ₁ ) with the first input (P ₁ ).
OM) is turned on, and the gravel plate position detection circuit (27) outputs a gram record plate position signal that the data is input by the first reading member (15a).

EFFECTS OF THE INVENTION According to the data input device described above, the data input device has one operation member that rotates about a predetermined axis and that is displaced in a direction orthogonal to the direction of rotation, and by operating the displacement of the operation member. Since the value of the data selected by the data selecting means can be changed by selecting the type of data and operating the rotation of the operating member, the data can be input more easily and quickly, and the two operating members can be input. Since the number of switch members is smaller than that in the case of using, the cost can be reduced.

[Brief description of drawings]

FIG. 1-a is a data input device according to the present invention, FIG.
The figure shows a state in which the data input device is tilted by θ degrees. Second
The figure shows the operation dial provided in the data input device, and FIG. 3 shows the reading member provided in the data input device. Fig. 4-a, 4-b, Fig. 5-a, 5-b, 6-
Figures a and 6-b respectively show a data input device according to another embodiment of the present invention. FIG. 7 shows a circuit diagram of the data input device according to the present invention, and FIG. 8 shows another circuit diagram of the data input device according to the present invention. FIG. 9 shows a gray code plate position sensor provided in the data input device according to the present invention. FIG. 10 shows a state in which the data input device according to the present invention is provided in a camera. Body …… 2 Opening area …… 2a Space area …… 10 Signal member …… 18 Operation dial …… 13 First detecting means …… 15a Second detecting means …… 15b Data changing means …… CPU

Claims (3)

(57) [Claims] 1. A data input device capable of inputting a plurality of types of data, wherein one operating member rotates about a predetermined axis and is further displaced in a direction orthogonal to the direction of rotation, and the operating member. It has a data selection means for selecting a data type by the operation of the displacement, and a data changing means for changing the value of the data selected by the data selection means by the operation of the rotation of the operation member. Data input device. 2. A click for positioning the operating member is provided at least at a predetermined displacement position in a direction orthogonal to the direction of rotation of the operating member. The data input device according to item 1. 3. The data input device according to claim 1, wherein the operating member is a disk-shaped member.