JPS6139390Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the configuration of a manual operation section used in a camera's power supply voltage check switch, self-timer setting switch, and the like.

Conventionally, in order to provide a camera with an operating member used for checking the power supply voltage, setting a self-timer, etc., a guide mechanism that guides the operating member so that it can be moved only in the operating direction, and a guide mechanism that guides the operating member so that it can be moved only in the operating direction, and a guide mechanism that guides the operating member so that it can be moved only in the operating direction, It is necessary to provide a click mechanism etc. to lock it in a predetermined position, and many parts are required for these mechanisms.Furthermore, because many parts are required, it is not easy to assemble. .

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and its purpose is to provide a manual operating section that is constructed of a small number of members and that is easy to assemble.

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 6 show an embodiment of the present invention, and FIG. 1 is a partial perspective view showing the external appearance of a single-lens reflex camera in which this embodiment is used;
FIG. 2 is a perspective view of the operating member and base member of this embodiment, FIG. 3 is a front view of the operating member attached to the base member, FIG. 4 is a side view thereof, and FIG.
The figure is a front view showing the switch switching section of this embodiment, and FIG. 6 is an electric circuit diagram showing an example of a circuit including the switch operated by this embodiment.

In FIG. 1, 1 is a photographic lens, and 2 is a camera body. As is clear from the figure, the photographic lens 1 is attached to the lens mount portion of the camera body 2. Reference numeral 4 denotes a rotatable shutter speed setting dial provided on the top surface of the camera body 2, and is configured so that the shutter in the camera is operated in accordance with the shutter speed setting matched with the index 3. 5 is a shutter release button, and when the shutter release button 5 is pressed, a photographing operation is started. Reference numeral 6 denotes an operating member made of plastic for voltage check and self-timer setting, which is placed on the side of the shutter speed setting dial 4. The operating member 6 is mounted on a base member 9 shown in FIG. It is supported so as to be movable in the direction of arrow A or B in FIG. 7 and 8 are indicators respectively provided on the upper cover of the camera body 2, 7 is a voltage check indicator, and 8 is a self-timer setting indicator. When the operating member 6 is moved in the direction of arrow A and the indicator 6' is aligned with the voltage check indicator 7, the power supply voltage check mechanism is activated, and the operating member 6 is moved in the direction of arrow B so that the indicator 6' is aligned with the voltage check indicator 7. Self-timer setting index 8
The self-timer mechanism is configured to be set when the time is set.

FIG. 2 shows the structure of this operating member 6 and a base member 9 that supports the operating member 6. As shown in FIG. The base member 9 has a disc shape with a circular opening concentrically formed in the center, and a groove 9 having an uneven side surface for clicking.
a is formed. On the other hand, the operating member 6 has a click pawl formed at its tip that comes into contact with the uneven side surface for clicking of the groove 9a of the base member 9, and a pair of elastic click pawls that can be fitted into the groove 9a of the base member 9. A branch portion 6a, an operating portion 6b for manual operation having a hole 6e into which a connecting rod 10a of a switching member 10, which will be described later, fits, and a protruding portion 6d that can come into contact with an outer circumferential surface 9b of the base member 9. It consists of a bent part 6c that is vertically bent from the protruding part 6d, that is, a pair of click elastic parts 6a, an operating part 6b, and a bent part 6.
c. All of the protruding parts 6d are integrally molded from plastic.

The operating portion 6b and the protruding portion 6d of the operating member 6
When the outer periphery of the base member 9 is fitted into the "U" shaped recess formed by the bent portion 6c and the operating member 6 is pushed toward the center of the base member 9, the pair of elastic click branches 6a of the operating member 6 fit into the grooves 9a of the base member 9, so that the operating member 6 is attached to the base member 9. In this manner, when the operating member 6 is attached to the base member 9, the movement of the operating member 6 in the direction of the arrow c is caused by the elastic click branches 6a of the operating member 6 moving in the direction of the arrow c ....
The movement in the direction of the arrow D is prevented by the protrusion 6d of the operating member 6.
The movement of the operating member 6 in the direction of the arrow E is prevented by the operating portion 6b of the operating member 6 coming into contact with the outer peripheral surface 9b of the base member 9.
The movement in the direction of the arrow F is prevented by the bent portion 6c of the operating member 6 abutting against the upper surface 9d of the base member 9.
This is prevented by the contact with the lower surface 9c of the
Therefore, when the operating member 6 is attached to the base member 9, movement of the operating member 6 in the directions of the arrows C, D, E, and F is prevented, and the operating member 6 can only move along the outer periphery of the base member 9 as shown by the arrows A or B. And, since the base member 9 is disposed below and parallel to the shutter speed setting dial 4 in FIG. 1, the operating member 6 attached to the base member 9 can only move in the directions of the arrows A or B.

As mentioned above, FIG. 3 shows a front view and FIG. 4 shows a side view of the operation member 6 when it is attached to the base member 9. In FIG. 3, when the operating member 6 is moved in the direction of arrow A from the illustrated state, that is, when the operating member 6 is moved so as to match the indicator 6' with the voltage check indicator 7 in FIG. This is shown in Figure 3. Since the click claws at the tips of the pair of elastic click branches 6a of the operating member 6 both come into contact with the concave side surface of the groove 9a of the base member 9, the operating member 6 is not locked.
Conversely, when the operating member 6 is moved in the direction of arrow B from the state shown in FIG. The click claws of the pair of elastic click branches 6a of the operating member 6 shown in FIG. It comes into contact with the concave side. In this state, the right click pawl is in contact with the convex side surface of the groove 9a, so the elastic force of the right click elastic branch 6a pushes the left click pawl into the groove 9 of the base member 9.
The left click pawl is kept in a state of engagement with the convex portion of the groove 9a. Therefore, when the indicator 6' of the operating member 6 in FIG. This is to do so.

FIG. 4 is a side view of the operating member 6 attached to the base member 9.
The switching member 10 is disposed coaxially with the base member 9.
Since the connecting rod 10 a passes through a hole 6 e in the operating portion of the operating member 6 , the switching member 10 is rotated together with the operating member 6 .

FIG. 5 shows a switch section that is switched by this switching member 10. In FIG. 5, reference numeral 11 denotes a first switching member that is rotatably supported around a shaft 11a, and each of the first switching members 11 has a pin 11 at its tip.
It consists of two arms having b and 11c, and a spring 12
is biased clockwise by. The pin 11b is in contact with the switching member 10, and the pin 11b is in contact with the switching member 10.
1b is pressed by the switching member 10 and the first switching member 11 is rotated counterclockwise,
Pin 11c is configured to close supply voltage check switch _S1 . Reference numeral 13 denotes a regulating pin for regulating the counterclockwise rotation of the first switching member 11, which is implanted within the rotation locus of the first switching member 11. Reference numeral 14 denotes a second switching member rotatably supported around a shaft 14a. It is biased counterclockwise. The pin 14b can be pressed by the switching member 10, and when the pin 14b is pressed by the switching member 10 and the second switching member 14 is rotated clockwise, the contact piece a and the contact piece b are normally rotated. Self-timer setting switch with contact conduction
The contact piece a of S ₂ is pressed by a pin 14c so that the contact piece a and the contact piece b are brought out of electrical contact, and the contact piece a and the contact piece c are brought into contact and conduction.

FIG. 6 shows an electric circuit for a power supply voltage check/self-timer having a power supply voltage check switch S ₁ and a self-timer setting switch S ₂ which are operated as described above. In Figure 6, E
is a power supply, R ₁ to R ₆ are resistors, C ₁ and C ₂ are capacitors, T ₁ and T ₂ are transistors, Mg is an electromagnet for shutter release, X is an exposure control circuit, and LED is for power supply voltage check display. , a light emitting diode placed within the viewfinder field of view of the camera or on the camera body, _S1 is the power supply voltage check switch mentioned above, _S2 is the self-timer setting switch mentioned above, and _S3 is the shutter shown in Figure 1. The shutter is closed when the shutter release button 5 is pressed, and when the self-timer is set, a locking mechanism (not shown) that keeps the shutter release button 5 pressed is operated, and the shutter is closed until the shutter is operated. This is a shutter release switch that is configured to maintain the activated state. In FIG. 6, the left side of the power supply E is a power supply voltage check circuit, and the right side is an electromagnetic shutter release circuit. The resistor _R3 of the electromagnetic shutter release circuit is a short-term release delay resistor for stabilizing the camera's photometry circuit and delaying the shutter operation for a short time to stabilize the exposure control mechanism, and the resistor _R4 is a self-release resistor. This is a release delay resistor for a predetermined period of time for delaying shutter operation for a predetermined period of time for the self-timer when the timer is set.

To explain the operation of this circuit, first, in the case of a power supply voltage check, the power supply voltage check switch _S1 is closed. Then, the voltage of the power source E is divided by the resistors R ₁ and R ₂ and the transistor T ₁
If the voltage of the power supply E is the proper voltage, the transistor _T1 becomes conductive and the light emitting diode LED lights up, indicating that the proper voltage is present. If the voltage of power supply E is below the appropriate voltage,
Transistor T ₁ does not conduct and the light emitting diode
The LED will not light up, indicating that there is insufficient voltage.

Next, for normal photography, as shown in Fig. 6, the self-timer setting switch _S2 is
and contact piece b are electrically connected. In the state shown, the shutter release button 5 in FIG.
When is pressed to close the shutter release switch _S3 , the conduction of the transistor _T2 is delayed for a short time by the resistor _R3 , and then the transistor _T2 is turned on, charging the capacitor _C2. The electric charge that was previously used is the electromagnet Mg for the shutter release.
is discharged through the shutter release electromagnet
Mg is excited and the shutter is released.

When performing self-timer photography, contacts a and c of the self-timer setting switch _S2 are electrically connected. When the shutter release switch _S3 is closed in this state, the conduction of the transistor _T2 for the self-timer is delayed by the resistor _R4 for a predetermined period of time, and then the transistor _T2 is turned on. The shutter is released like this.

To explain the operation of this embodiment configured as above, first, when checking the power supply voltage, the operating member 6 is moved in the direction of arrow A from the state shown in FIGS. 1 and 3, The operating member 6
The indicator 6' is matched with the voltage check indicator 7 in FIG. Then, the switching member 10 that rotates integrally with the operating member 6 is rotated clockwise, and the switching member 1
0 presses the pin 11b of the first switching member 11, the first switching member 11 is rotated counterclockwise, and the pin 11c switches the power supply voltage check switch _S1.
is closed and the voltage of power supply E is checked as described above. When the operating member 6 is released after checking the power supply voltage, the first switching member 11 is rotated clockwise by the spring 12 since the operating member 6 is not locked by the click mechanism. When the pin 11b of the switching member 11 presses the switching member 10 and the switching member 10 is rotated counterclockwise, the operating member 6, which rotates integrally with the switching member 10, similarly moves. Then, the state shown in FIG. 3 is restored.

Next, when shooting with the self-timer,
From the state shown in FIGS. 1 and 3, the operating member 6 moves to arrow B.
direction, and the indicator 6' of the operating member 6 is aligned with the self-timer setting indicator 8 of FIG. When the operating member 6 is moved in the direction of the arrow B, the switching member 10 is also rotated counterclockwise, and the switching member 10 is moved toward the pin 14 of the second switching member 14.
b is pressed, the second switching member 14 is rotated clockwise, and the pin 14c brings the contacts a and c of the self-timer setting switch _S2 into electrical continuity. In this case, since the operating member 6 is configured to be locked when aligned with the self-timer setting indicator 8 as described above, the contact pieces a and c of the self-timer setting switch _S2 are is maintained in a conductive state. Then, by pressing the shutter release button 5, the shutter release switch is activated.
When _S3 is closed, photography is performed using the self-timer as described above. To cancel the self-timer setting, manually press the operating member 6.
All you have to do is return it to the position shown in FIG. 1 or 3.

7 and 8 show other embodiments of the manual operation section of the embodiment shown in FIGS. 1 to 6, and FIG.
The figure is a front view thereof, and FIG. 8 is a side view thereof. Members that operate in the same manner as in the embodiment shown in FIGS. 1 to 6 are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, the base member 9 includes:
A pair of protrusions 9e having click protrusions are fixed to the grooves 9a of the embodiments of FIGS. 1 to 6.
There isn't. On the other hand, the outer circumferential surfaces of the pair of click elastic branches 6a of the operating member 6 come into contact with the protrusions of the pair of protrusions 9e of the operating member 9, respectively, and form an uneven surface that can be locked by the protrusions. and no click nails are formed. The shape of the uneven surface of the click elastic branch 6a is set in advance so that the operating member 6 is locked at the same position as in the embodiment shown in FIGS. 1 to 6.

In order to attach the operating member 6 of this embodiment to the base member 9, first, the pair of elastic branches 6a for clicking of the operating member 6 are brought into contact with the convex surfaces of the pair of protrusions 9e of the base member 9, respectively. , Next, the operating member 6 is pulled outward from the base member 9 by using the elasticity of the click elastic branch 6a, and the operating portion 6b of the operating member 6 is moved.
“K” formed by the protruding portion 6d and the bent portion 6c
The outer circumference of the base member 9 may be fitted into the square-shaped recess. In this embodiment, the arrow c of the operating member 6
As is clear from FIG. 7, the movement in the direction is such that the pair of click elastic branches 6a of the operating member 6 are in contact with the convex surfaces of the pair of protrusions 9e of the base member 9, respectively. Since the elasticity of the elastic branch portion 6a works to prevent the operating member 6 from moving in the direction of the arrow c, movement in the direction of the arrow c is prevented.

In the above two embodiments, a manual operation section for checking the power supply voltage and setting the self-timer was shown, but the present invention is not limited to this, and can be used for various functions such as the main switch of a camera. It can be applied to the manual operation part of the changeover switch.

As described above, according to the present invention, the manual operation part is constructed only by the plastic operation member and the base member, and there is no need to provide a separate guide mechanism or click mechanism for the operation member, so it is different from the conventional one. Compared to this, the number of members can be reduced. Further, in order to assemble the manual operating section of the present invention, it is only necessary to fit the operating member into the base member by utilizing the elasticity of the plastic of the operating member, so that assembly can be simplified. Once the operating member is fitted into the base member, the operating member will not come off the base member unless the elasticity of the plastic is utilized again, so that unnecessary detachment of the operating member can be prevented.

[Brief explanation of drawings]

Fig. 1 is a partial perspective view of the external appearance of a single-lens reflex camera in which an embodiment of the present invention is used, Fig. 2 is a perspective view showing the configuration of the manual operation section of this embodiment, and Fig. 3 is the manual operation section. 4 is a side view thereof, FIG. 5 is a front view showing the switch switching section of the village in this example, and FIG. 6 is an electric circuit showing an example of the electric circuit operated by this example. FIG. 7 is a front view showing another embodiment of the manual operation section, and FIG. 8 is a side view thereof. 6: Operation member, 9: Base member.

Claims (1)

[Claims for Utility Model Registration] 1. Consisting of a base member having a guide portion, and an operating member formed of plastic so as to be guided by the guide portion of the base member in response to manual operation, The operation member includes a recess into which the guide portion of the base member is fitted, and a branch portion that is elastic and is formed to prevent the guide portion of the base member from leaving the recess of the operation member. are integrally formed of plastic, and furthermore, the branch part of the operating member and the contact part of the base member with which the branch part abuts, a click lever is formed by utilizing the elasticity of the branch part. A configuration of a manual operation section characterized in that a mechanism is formed. 2. The configuration of the manual operation unit according to claim 1, wherein the recessed portion of the operation member is configured to sandwich the outer periphery of the guide portion of the base member.