JP6433306B2 - Electronics - Google Patents

Description

The present invention relates to an electronic apparatus capable of changing a change amount of a parameter of a function corresponding to an operation member in accordance with an operation amount to the operation member.

  In electronic devices such as digital cameras, when changing the shooting magnification by operating the zoom operation section such as buttons and levers, the change rate of the shooting magnification (zoom speed) can be switched to improve the convenience for the user There is. In general, the zoom speed is switched by changing the amount of movement of the zoom operation unit.

  However, if the relationship between the amount of movement of the zoom operation unit and the zoom speed is not clear, the user cannot perform a zoom operation at an arbitrary speed, which is inconvenient.

  Therefore, a technique is known in which when the amount of movement of the zoom operation unit reaches the amount of switching of the zoom speed, the operation load on the zoom operation unit is changed to inform the user of the timing of switching of the zoom speed.

  For example, when the amount of rotation of the rotary zoom lever urged to the neutral position by the urging member exceeds a predetermined value, the urging force of another urging member acts on the zoom lever and the zoom lever is rotated. There has been proposed a technique for increasing the load (Patent Document 1).

  Further, when the pushing amount of the seesaw type zoom button biased to the neutral position by the biasing member exceeds a predetermined value, the biasing force of another biasing portion provided on the biasing member acts on the zoom button. A technique for increasing the load of the zoom button pressing operation has been proposed (Patent Document 1).

JP 2012-8269 A JP 05-167907 A

  However, in both Patent Documents 1 and 2, although the operation load changes as the zoom speed changes, the value of the operation load is continuous before and after the change, so it is difficult for the user to understand the change in the operation load. There is a problem that the operability of the zoom operation unit is poor.

  Therefore, the present invention can change the amount of change in the parameter of the function corresponding to the operation unit according to the amount of operation to the operation unit, and makes it easy for the operator to understand the relationship between the operation amount and the change amount. An object is to provide electronic equipment.

  In order to achieve the above object, the present invention provides an electronic device comprising switching means for stepwise switching a parameter change amount of a function corresponding to an operation unit in accordance with an operation amount of the operation unit. A first contact portion that moves in conjunction with the operation of the first contact portion, a second contact portion that is disposed at a position away from the first contact portion and moves in conjunction with the operation of the operation portion, Biasing means that elastically deforms when the first abutting portion and the second abutting portion abut and applies an operation load by a biasing force to the operation portion; and The abutting portion and the second abutting portion switch the abutting against the biasing means from the first abutting portion to the second abutting portion when the change amount of the parameter is switched. So that the first abutting portion is in contact with each other. The operating load applied to the operating unit I, the second contact portion, characterized in that different from the operation load applied to the operation portion by abutting.

  According to the present invention, in an electronic device capable of changing a change amount of a parameter of a function corresponding to an operation unit according to an operation amount to the operation unit, the operator grasps a relationship between the operation amount and the change amount. Can be easier.

(A) is the perspective view which looked at the digital camera which is 1st Embodiment of the imaging device of this invention from the front side (object side), (b) is the perspective view which looked at the digital camera shown to (a) from the back side. FIG. It is a disassembled perspective view of the zoom lever unit containing a release button and a zoom lever. It is sectional drawing which follows the axial direction of the release button of a zoom lever unit. It is the figure which looked at the zoom lever unit shown in FIG. 3 from the back surface side. It is a figure which shows the contact state of a zoom speed switching brush and a zoom speed switching pattern. It is a figure which shows the relationship between the contact state of a zoom speed switching brush and a zoom speed switching pattern, and zoom speed. It is the figure which looked at the state which removed the torsion spring fixed plate, the zoom lever fixed plate, and the zoom speed switching brush from the zoom lever unit from the back side. It is a graph which shows the relationship between the rotation angle from the neutral position of a zoom lever, and the operation load which generate | occur | produces in a zoom lever by the urging | biasing force of a torsion spring. In the digital camera which is 2nd Embodiment of the imaging device of this invention, it is the figure which looked at the state which removed the torsion spring fixing plate, the zoom lever fixing plate, and the zoom speed switching brush from the zoom lever unit from the back side. In the digital camera which is 3rd Embodiment of the imaging device of this invention, it is a disassembled perspective view of the zoom lever unit containing a release button and a zoom lever. It is sectional drawing which follows the axial direction of the release button of a zoom lever unit. It is the figure which looked at the zoom lever unit shown in FIG. 11 from the back side. It is a figure which shows the contact state of a zoom speed switching brush and a zoom speed switching pattern. It is a figure from the upper surface side of a camera main body with the torsion spring of a zoom lever unit, a brush holding member, and a rubber member. It is the figure which looked at the positional relationship of a top cover, a torsion spring, and a rubber member when rotating a zoom lever to the angle shown in FIG.14 (d) from the back surface side of the zoom lever unit. In the digital camera which is 4th Embodiment of the imaging device of this invention, it is a figure from the upper surface side of a camera body with the torsion spring of a zoom lever unit, a brush holding member, and a rubber member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1A is a perspective view of a digital camera, which is a first embodiment of the imaging apparatus of the present invention, as viewed from the front side (subject side), and FIG. 1B is a digital camera shown in FIG. It is the perspective view seen from the back side.

  In the digital camera of this embodiment, a lens barrel 2 is provided on the front side of the camera body 1 as shown in FIG. The lens barrel 2 is of a zoom type in which the zoom magnification is changed by moving in the optical axis direction between the retracted position and the photographing position. The subject luminous flux that has passed through the imaging optical system of the lens barrel 2 forms an image on an imaging element (not shown) in the camera main body 1 and is photoelectrically converted. The image signal output from the imaging element is not reflected in the camera main body 1. Image processing is performed by the illustrated image processing unit.

  A release button 4, a mode switching dial 6, a power button 18, and a pop-up strobe unit 3 are provided on the upper surface side of the camera body 1. Around the release button 4, a rotary zoom lever 5 corresponding to an example of the zoom operation unit of the present invention is attached. When the zoom lever 5 is rotated clockwise when viewed from the upper surface side of the camera body 1, the lens barrel 2 is zoomed to the telephoto side (the direction in which the angle of view becomes narrower), and is rotated counterclockwise. Then, the lens barrel 2 zooms to the wide side (direction in which the angle of view widens). In addition, so-called electronic zoom may be performed instead of the optical zoom that performs the zoom operation of the lens barrel 2 in accordance with the rotation operation to the zoom lever 5.

  Further, as shown in FIG. 1B, an image display unit 7 such as an LCD is provided on the back side of the camera body 1, and various operation button groups 8 are provided on the side of the image display unit 7. ing. The image display unit 7 is used for confirming a subject image to be captured and reproduction display of the captured image, and the operation button group 8 is used when, for example, instructing to change the display form of the image display unit 7 or switch to a reproduction screen. Used.

  FIG. 2 is an exploded perspective view of the zoom lever unit including the release button 4 and the zoom lever 5. As shown in FIG. 2, the zoom lever unit includes a release button 4, a compression spring 9, a zoom lever 5, a top cover 10, a torsion spring 11, a torsion spring fixing plate 12, a zoom lever fixing plate 13, and a zoom speed switching brush 14. Have The zoom lever unit is disposed on the operation printed circuit board 15 on which the release switch 15a and the zoom speed switching pattern 15b are disposed.

  FIG. 3 is a cross-sectional view along the axial direction of the release button 4 of the zoom lever unit. FIG. 4 is a view of the zoom lever unit shown in FIG. 3 as seen from the back side. As shown in FIG. 3, the release button 4 is retained by the hook portion 4 b while being urged upward by a compression spring 9 fitted in the shaft 4 a of the release button 4. When the release button 4 is pressed by the user and then released, the release button 4 returns to the standby position shown in FIG.

  The top cover 10 is provided with a torsion spring 11, and the torsion spring 11 generates an urging force for returning the zoom lever 5 moved in the rotation direction to the neutral position by a user's rotation operation. The torsion spring 11 is formed by fixing the torsion spring fixing plate 12 to the top cover 10 with screws 16 in a state where the shaft provided on the lower surface of the top cover 10 is inserted into the coil-shaped holding portion 11b. Retained.

  The zoom lever 5 is made of resin or the like, and heat-caulking the shaft 5a (see FIG. 4) of the zoom lever 5 with the top cover 10 sandwiched between the zoom lever fixing plate 13 and the top cover. 10 is supported so as to be rotatable with respect to 10.

  The zoom lever fixing plate 13 is made of resin or the like, and a zoom speed switching brush 14 made of phosphor bronze or the like is attached to the zoom lever fixing plate 13. As shown in FIG. 4, the zoom speed fixing brush 14 is attached to the zoom lever fixing plate 13 by passing the shaft 13 a provided on the zoom lever fixing plate 13 through a hole provided in the zoom speed switching brush 14 and performing heat caulking or the like. Fixed. Thereby, the zoom lever fixing plate 13 and the zoom speed switching brush 14 are rotated in conjunction with the rotation operation of the zoom lever 5 by the user.

  When the zoom lever unit is assembled to the camera body 1, the zoom speed switching brush 14 contacts the zoom speed switching pattern 15b in an elastically deformed state and can be electrically connected.

  FIG. 5 is a diagram illustrating a contact state between the zoom speed switching brush 14 and the zoom speed switching pattern 15b. FIG. 6 is a diagram showing the relationship between the zoom speed and the contact state between the zoom speed switching brush 14 and the zoom speed switching pattern 15b.

  As shown in FIG. 5, the zoom speed switching pattern 15 b has five contacts A to E, and switches the zoom speed with respect to any of the five contacts A to E according to the operation amount of the zoom lever 5. Four contact portions 14a provided at the tip of the brush 14 come into contact.

  FIG. 5A is a diagram showing the position of the zoom speed switching brush 14 when the zoom lever 5 is biased by the torsion spring 11 and is in the neutral position. At this time, the four contact portions 14a of the zoom speed switching brush 14 are all on the contact C of the zoom speed switching pattern 15b. For this reason, the contact C and the other contacts A, B, D, and E do not conduct, and the zoom operation is not performed due to “no conduction” in the conduction combination column of FIG.

  FIG. 5B is a diagram illustrating the position of the zoom speed switching brush 14 when the user rotates the zoom lever 5 in the clockwise direction from the state of FIG. At this time, of the four contact portions 14a of the zoom speed switching brush 14, two contact portions 14a are on the contact C of the zoom speed switching pattern 15b, and the remaining two contact portions 14a are on the contact B. For this reason, the contact C and the contact B are brought into conduction, and the telescopic low speed zoom operation is performed by “C and B” in the conduction combination column of FIG.

  FIG. 5C is a diagram showing the position of the zoom speed switching brush 14 when the user further rotates the zoom lever 5 in the clockwise direction from the state of FIG. 5B. At this time, of the four contact portions 14a of the zoom speed switching brush 14, two contact portions 14a are on the contact C of the zoom speed switching pattern 15b, and the remaining two contact portions 14a are on the contact A. For this reason, the contact C and the contact A are conducted, and the tele-side high-speed zoom operation is performed by “C and A” in the conduction combination column of FIG.

  Similarly, when the user rotates the zoom lever 5 in the counterclockwise direction from the state of FIG. 5A, the contact C and the contact D become conductive, and “C” in the column of the conduction combination in FIG. “D” performs a low-speed zoom operation on the wide side. Further, when the user rotates the zoom lever 5 in the counterclockwise direction, the contact C and the contact E are brought into conduction, and “C and E” in the conduction combination column in FIG. Is called.

  Thus, since the zoom speed switching brush 14 is interlocked with the rotation of the zoom lever 5, the zoom speed can be controlled by the user turning the zoom lever 5. When the user releases the zoom lever 5, the zoom lever 5 returns to the neutral position shown in FIG. 5A together with the zoom speed switching brush 14 by the urging force of the torsion spring 11, and the zoom operation stops.

  Next, with reference to FIG. 7, an operation in which the biasing force of the torsion spring 11 pushes the zoom lever 5 back to the neutral position when the zoom lever 5 is rotated will be described. FIG. 7 is a view of a state in which the torsion spring fixing plate 12, the zoom lever fixing plate 13, and the zoom speed switching brush 14 are removed from the zoom lever unit as viewed from the back side.

  The top cover 10 is formed with an arcuate hole 5e into which the rotation restricting portion 5b provided in the zoom lever 5 is inserted, and the zoom lever 5 is rotatable within the range of the hole 5e. The zoom lever 5 is provided with a first contact portion 5c and a second contact portion 5d. The contact portions 5 c and 5 d are configured by covering a shaft formed on the zoom lever 5 with a silencer member 17 such as rubber. The muffling member 17 moves between the zoom lever 5 and the torsion spring 11 when the zoom lever 5 returns to the neutral position by the urging force of the torsion spring 11 after the user releases the hand while the zoom lever 5 is rotated. Reduce the impact noise generated between the two.

  FIG. 7A is a diagram showing a state when the zoom lever 5 is in the neutral position. As shown in FIG. 7A, the torsion spring 11 has two arm portions 11 a extending substantially in parallel from the holding portion 11 b, and the two arm portions 11 a are stopper portions provided on the top cover 10. It is latched by the stopper part 10a in a state of being biased in the direction of sandwiching 10a. Moreover, the front-end | tip part of the two arm parts 11a is bent inside in the direction which approaches mutually, and contact part 5c, 5d is arrange | positioned between the two arm parts 11a.

  In FIG. 7B, the zoom lever 5 is rotated clockwise until the zoom speed switching brush 14 reaches the position shown in FIG. 5B, and the low-speed zoom operation toward the tele side is performed. It is a figure which shows the state at the time. At this time, the lower arm portion 11a of the two arm portions 11a of the torsion spring 11 is in contact with the contact portion 5c located on the side away from the holding portion 11b of the contact portions 5c and 5d, An urging force that pushes the zoom lever 5 back to the neutral position is generated.

  FIG. 7C shows the zoom lever 5 further rotated in the clockwise direction from the state of FIG. 7B, and the tele zoom side shown in FIG. It is a figure which shows the state immediately before switching in steps to the high-speed zoom operation | movement to the tele side shown in FIG. In this state, the lower arm portion 11a of the torsion spring 11 is in contact with both of the contact portions 5c and 5d. A rotation angle from the neutral position of the zoom lever 5 at this time is defined as θc.

  FIG. 7D shows a state in which the zoom lever 5 is further rotated in the clockwise direction from the state of FIG. 7C to perform the high-speed zoom operation toward the tele side as shown in FIG. It is a figure which shows the state of. At this time, the lower arm portion 11a of the torsion spring 11 contacts the contact portion 5d located on the side closer to the holding portion 11b of the contact portions 5c and 5d.

  Although illustration is omitted, when the zoom lever 5 is rotated counterclockwise from the neutral position, the upper arm portion 11a of the torsion spring 11 in the figure with respect to the contact portions 5c and 5d is the same as described above. Abut.

  That is, when the zoom lever 5 is rotated counterclockwise from the neutral position to perform the low-speed zoom operation toward the wide side, the upper arm portion 11a of the torsion spring 11 is only the contact portion 5c. Abut. The arm 11a on the upper side of the torsion spring 11 in the figure immediately before the zoom lever 5 is further rotated by an angle (θc) in the counterclockwise direction and the zoom operation toward the wide side is gradually switched from low speed to high speed. It abuts both the abutting portions 5c and 5d. Further, when the zoom lever 5 is further rotated counterclockwise to perform a high-speed zoom operation toward the wide side, the upper arm portion 11a of the torsion spring 11 in FIG. Abut.

  FIG. 8 is a graph showing the relationship between the rotation angle from the neutral position of the zoom lever 5 and the operation load generated on the zoom lever 5 due to the urging force of the torsion spring 11. In FIG. 8, the horizontal axis indicates the rotation angle θ when the zoom lever 5 is rotated from the neutral position, and the vertical axis indicates the rotation as an operation load generated on the zoom lever 5 by the biasing force of the torsion spring 11. Moment M is shown. The relationship between the rotation angle from the neutral position of the zoom lever 5 shown in FIG. 8 and the operation load is the same in both the clockwise direction and the counterclockwise direction.

  When the zoom lever 5 is rotated from the neutral position, first, the contact portion 5 c contacts the arm portion 11 a of the torsion spring 11. As the rotation angle of the zoom lever 5 increases, the amount of deformation of the arm portion 11a of the torsion spring 11 increases, the reaction force received by the contact portion 5c increases, and the rotational moment M generated in the zoom lever 5 also increases. To do.

  The rotation angle θc is an angle at which the arm portion 11a of the torsion spring 11 contacts both of the contact portions 5c and 5d (see FIG. 7C). The position of the contact part 5d is located closer to the holding part 11b of the torsion spring 11 than the contact part 5c.

  Here, when the arm portion 11a of the torsion spring 11 is regarded as a lever, the holding portion 11b corresponds to a fulcrum and the contact portions 5c and 5d correspond to action points. If the reaction forces received by the contact portions 5c and 5d from the torsion spring 11 are Fc and Fd (see FIG. 7C), respectively, the magnitude relationship of the reaction force is Fc < Fd.

  Further, the relationship between the distances Rc and Rd (see FIG. 7D) from the rotation center of the zoom lever 5 to the contact portions 5c and 5d is Rc <Rd. The contact portions 5c and 5d are torsion springs. If the rotational moment M generated in the zoom lever 5 by the reaction force received from the motor 11 is Mc and Md, respectively, it can be expressed as rotational moment M = R × F. Therefore, the magnitude relationship between Mc and Md is expressed by the following equation.

Mc = Rc × Fc <Rd × Fc <Rd × Fd = Md
Therefore, as shown in FIG. 8, the operation load during the rotation operation of the zoom lever 5 discontinuously increases vertically from Mc to Md at the rotation angle θc. Therefore, when the zoom lever 5 is rotated, the user can clearly feel an increase in the operation load at the rotation angle θc immediately before the zoom speed is switched stepwise from low to high. Note that the operation load may be increased from Mc to Md at the rotation angle θc so that the zoom lever 5 reaches the rotation angle θc at the same time as the zoom speed is switched stepwise from low to high.

  When the user desires a zoom operation at a low speed, the rotation angle of the zoom lever 5 can be easily held in the range of 0 <θ <θc. If the user wants to perform the zoom operation at a high speed, the zoom lever 5 may be rotated more than θc. When the rotation angle exceeds θc, only the contact portion 5d contacts the arm portion 11a of the torsion spring 11, and as the rotation angle increases, the deformation amount of the arm portion 11a increases, and the contact portion 5d receives the reaction. As the force increases, the moment M generated in the zoom lever 5 also increases.

  As described above, in the present embodiment, when the zoom speed changes, the change in the operation load of the zoom lever 5 can be clearly discriminated, so that excellent operability of the zoom lever 5 can be ensured. it can. In addition, since no new parts for switching the operation load of the zoom lever 5 are required, it is possible to contribute to space saving and cost reduction.

(Second Embodiment)
Next, a digital camera which is a second embodiment of the imaging apparatus of the present invention will be described with reference to FIG. Note that portions that overlap or correspond to the first embodiment will be described with the same reference numerals.

  In the first embodiment, when the zoom lever 5 is rotated to the rotation angle θc, the two arm portions are used to bring both the contact portions 5c and 5d into contact with the arm portion 11a of the torsion spring 11. The front ends of 11a are bent in a direction approaching each other. On the other hand, in this embodiment, the case where the two arm portions 11a are arranged in a straight line substantially in parallel without the distal ends of the two arm portions 11a being bent is taken as an example.

  FIG. 9 is a view of a state in which the torsion spring fixing plate 12, the zoom lever fixing plate 13, and the zoom speed switching brush 14 are removed from the zoom lever unit as viewed from the back side.

  As shown in FIG. 9, the zoom lever 5 is provided with a total of three contact portions 5c1, 5c2, and 5d including two first contact portions 5c1 and 5c2 and one second contact portion 5d. Yes. The three contact portions 5 c 1, 5 c 2, 5 d are configured by covering a shaft formed on the zoom lever 5 with a silencer member 17 such as rubber.

  The contact portions 5c1 and 5c2 are arranged at an equal distance from the rotation center of the zoom lever 5 at the neutral position of the zoom lever 5. The contact portion 5d is disposed at an equal distance from the contact portions 5c1 and 5c2 and at a position closer to the contact portions 5c1 and 5c2 from the rotation center of the zoom lever 5.

  FIG. 9A is a diagram showing a state when the zoom lever 5 is in the neutral position. As shown in FIG. 7A, the torsion spring 11 is applied in a state where the two arm portions 11a extending linearly from the holding portion 11b are urged in a direction sandwiching the contact portions 5c1 and 5c2. Locked to the contact portions 5c1 and 5c2. Accordingly, the contact portions 5 c 1, 5 c 2, 5 d are disposed between the two arm portions 11 a of the torsion spring 11.

  In FIG. 9B, the zoom lever 5 is rotated clockwise until the zoom speed switching brush 14 reaches the position shown in FIG. 5B, and the low-speed zoom operation toward the tele side is performed. It is a figure which shows the state at the time. At this time, the lower arm portion 11a of the two arm portions 11a of the torsion spring 11 is in contact with the contact portion 5c2 located on the side away from the holding portion 11b of the contact portions 5c1, 5c2, and 5d. The urging force that pushes the zoom lever 5 back to the neutral position is generated.

  FIG. 9C shows the zoom lever 5 further rotated in the clockwise direction from the state shown in FIG. 9B, and the telescopic zoom operation shown in FIG. It is a figure which shows the state just before switching to the high-speed zoom operation | movement to the tele side shown in FIG. In this state, the lower arm portion 11a of the torsion spring 11 is in contact with the two contact portions 5c2 and 5d. A rotation angle from the neutral position of the zoom lever 5 at this time is defined as θc.

  FIG. 9D shows a state in which the zoom lever 5 is further rotated clockwise from the state shown in FIG. 9C to perform a high-speed zoom operation toward the tele side as shown in FIG. 5C. It is a figure which shows the state of. At this time, the lower arm portion 11a of the torsion spring 11 comes into contact with the contact portion 5d located on the side closer to the holding portion 11b of the contact portions 5c1, 5c2, and 5d.

  Although illustration is omitted, when the zoom lever 5 is rotated counterclockwise from the neutral position, the upper arm portion 11a of the torsion spring 11 in the figure with respect to the contact portions 5c1 and 5d is the same as described above. Abut.

  That is, when the zoom lever 5 is turned counterclockwise from the neutral position and the low-speed zoom operation to the wide side is performed, the upper arm portion 11a of the torsion spring 11 is only the contact portion 5c1. Abut. The arm 11a on the upper side of the figure of the torsion spring 11 is a contact portion immediately before the zoom operation to the wide side is switched from the low speed to the high speed by further rotating the zoom lever 5 in the counterclockwise direction by an angle (θc). It abuts on both 5c1 and 5d. Further, when the zoom lever 5 is further rotated counterclockwise to perform a high-speed zoom operation toward the wide side, the upper arm portion 11a of the torsion spring 11 in FIG. Touch.

  The relationship between the rotation angle of the zoom lever 5 and the operation load is the same as that in the graph shown in FIG. 8 of the first embodiment at the rotation angle θc.

  In the present embodiment, as in the first embodiment, the arm portion 11a of the torsion spring 11 is brought into contact with both the contact portions 5c and 5d when the zoom lever 5 is turned to the turning angle θc. This eliminates the need to bend the tip of the arm 11a. As a result, it is not necessary to manage the bending angle of the tip of the arm portion 11a, and there is no fear of the torsion spring 11 falling. Other configurations and operational effects are the same as those in the first embodiment.

(Third embodiment)
Next, a digital camera which is a third embodiment of the imaging apparatus of the present invention will be described with reference to FIGS. Note that portions that overlap or correspond to the first embodiment will be described with the same reference numerals.

  FIG. 10 is an exploded perspective view of the zoom lever unit including the release button 4 and the zoom lever 5. As shown in FIG. 10, the zoom lever unit includes a release button 4, a compression spring 9, a zoom lever 5, a top cover 10, a torsion spring 11, rubber members 26 and 27, a brush holding member 23, and a zoom speed switching brush 14. Have. The zoom lever unit is disposed on the operation printed circuit board 15 on which the release switch 15a and the zoom speed switching pattern 15b are disposed.

  FIG. 11 is a cross-sectional view along the axial direction of the release button 4 of the zoom lever unit. 12 is a view of the zoom lever unit shown in FIG. 11 as viewed from the back side. As shown in FIG. 11, the release button 4 is retained by the hook portion 4 b in a state where it is urged upward by a compression spring 9 fitted into the shaft 4 a of the release button 4. When the release button 4 is pressed by the user and then released, the release button 4 returns to the standby position shown in FIG.

  The top cover 10 is provided with a torsion spring 11, and the torsion spring 11 generates an urging force for returning the zoom lever 5 moved in the rotation direction to the neutral position by a user's rotation operation. As shown in FIGS. 11 and 12, the torsion spring 11 is assembled in a state where the coil-shaped holding portion 11 b is inserted into a shaft provided on the lower surface of the top cover 10. Further, the rubber member 26 is also assembled in a state of being inserted into a convex portion provided on the lower surface of the top cover 10. The torsion spring 11 and the rubber member 26 are held by the top cover 10 when a torsion spring fixing plate (not shown) is fixed to the top cover 10 with screws.

  The brush holding member 23 is provided with three bosses 23 a, and the three bosses 23 a are respectively inserted into three holes formed in the rubber member 27 and assembled to the rubber member 27. The zoom lever 5 is fixed to the brush holding member 23 with a screw or the like in a state where the top cover 10 is sandwiched between the zoom lever 5 and the zoom lever 5. Yes.

  The brush holding member 23 is made of resin or the like, and the zoom speed switching brush 14 made of phosphor bronze or the like is attached to the brush holding member 23. The zoom speed switching brush 14 is fixed to the brush holding member 23 by performing heat caulking or the like through a shaft provided in the brush holding member 23 in a hole provided in the zoom speed switching brush 14. Thereby, the brush holding member 23 and the zoom speed switching brush 14 rotate in conjunction with the rotation operation of the zoom lever 5 by the user.

  When the zoom lever unit is assembled to the camera body 1, the zoom speed switching brush 14 contacts the zoom speed switching pattern 15b in an elastically deformed state and can be electrically connected.

  FIG. 13 is a diagram illustrating a contact state between the zoom speed switching brush 14 and the zoom speed switching pattern 15b. FIG. 13A is a diagram illustrating the position of the zoom speed switching brush 14 when the zoom lever 5 is biased by the torsion spring 11 and is in the neutral position. FIG. 13B is a diagram illustrating the position of the zoom speed switching brush 14 when the user rotates the zoom lever 5 in the clockwise direction from the state of FIG. FIG. 13C is a diagram showing the position of the zoom speed switching brush 14 when the user further rotates the zoom lever 5 in the clockwise direction from the state of FIG. 13B. The contact state between the contact portion 14a of the zoom speed switching brush 14 and the contacts A to E of the zoom speed switching pattern 15b, the conduction combination, and the zoom operation in FIGS. 13A to 13C are shown in FIG. Since it is the same as a) thru | or FIG.5 (c) and FIG. 6, the description is abbreviate | omitted.

  Next, with reference to FIG. 14, an operation in which the biasing force of the torsion spring 11 pushes the zoom lever 5 back to the neutral position when the zoom lever 5 is rotated will be described. FIG. 14 is a view of the torsion spring 11, the brush holding member 23, and the rubber members 26 and 27 of the zoom lever unit from the upper surface side of the camera body 1.

  The brush holding member 23 is provided with a total of three contact portions 5c1, 5c2, and 5d including two first contact portions 5c1 and 5c2 and one second contact portion 5d. The contact portions 5 c 1, 5 c 2, 5 d are configured by assembling a rubber member 27 on a shaft formed on the brush holding member 23. The positional relationship between the contact portions 5c1, 5c2, and 5d is the same as that in the second embodiment (FIG. 9). Further, FIG. 14 shows a view as seen from the upper surface side of the camera body 1, that is, the front surface side of the zoom lever unit, so that the contact portion 5c1 is different from FIG. 9 as viewed from the rear surface side of the zoom lever unit. , 5c2 are upside down.

  FIG. 14A is a diagram showing a state when the zoom lever 5 is in the neutral position. As shown in FIG. 14A, the torsion spring 11 is applied to the rubber member 26 in a state in which the two arm portions 11a extending linearly from the holding portion 11b are urged in a direction sandwiching the rubber member 26. It is locked.

  In this state, the contact portions 5c1, 5c2, and 5d are disposed between the two arm portions 11a of the torsion spring 11, and the contact portions 5c1 and 5c2 are in contact with the arm portion 11a of the torsion spring 11, so that the contact portion 5d is separated from the arm part 11a. Further, since the contact portions 5c1 and 5c2 are sandwiched between the two arm portions 11a without a gap, the brush holding member 23 and the zoom lever 5 are held without rotating from the neutral position.

  FIG. 14B shows a state in which the zoom lever 5 is rotated until the zoom speed switching brush 14 reaches the position shown in FIG. FIG. At this time, the lower arm portion 11a of the two arm portions 11a of the torsion spring 11 is in contact with the contact portion 5c1 located on the side away from the holding portion 11b of the contact portions 5c1, 5c2, and 5d. The urging force that pushes the zoom lever 5 back to the neutral position is generated.

  FIG. 14 (c) shows that the zoom lever 5 is further rotated from the state shown in FIG. 14 (b), and the low-speed zoom operation toward the tele side shown in FIG. It is a figure which shows the state just before switching to a high-speed zoom operation | movement in stepwise. In this state, the lower arm portion 11a of the torsion spring 11 is in contact with the two contact portions 5c1 and 5d. A rotation angle from the neutral position of the zoom lever 5 at this time is defined as θc.

  FIG. 14D shows a state when the zoom lever 5 is further rotated from the state of FIG. 14C and the high-speed zoom operation toward the tele side shown in FIG. 13C is performed. FIG. At this time, the lower arm portion 11a of the torsion spring 11 comes into contact with the contact portion 5d located on the side closer to the holding portion 11b of the contact portions 5c1, 5c2, and 5d.

  FIG. 15 shows the positional relationship between the top cover 10, the torsion spring 11, and the rubber members 26 and 27 when the zoom lever 5 is rotated to the angle shown in FIG. FIG.

  At the moving end of the zoom lever 5 shown in FIG. 15, the contact portion 5 c 1 is in contact with a stopper portion 10 a provided on the top cover 10, and further rotation of the zoom lever 5 is restricted. Further, since the rubber member 27, which is an elastic member, is in contact with the stopper portion 10a, the collision sound that is generated at the time of contact is reduced.

  When the user releases his / her hand from the zoom lever 5 while rotating the zoom lever 5, the zoom lever 5 returns to the neutral position shown in FIG. At that time, the lower arm portion 11a of FIG. 14 of the torsion spring 11 collides with the rubber member 26, so that the collision noise is reduced. Similarly, when the zoom lever 5 returns to the neutral position, the abutment portion 5c2 collides with the upper arm portion 11a of FIG. 14, but the abutment portion 5c2 is constituted by the rubber member 27, so that the collision noise is reduced. Is done.

  Although illustration is omitted, when the zoom lever 5 is rotated from the neutral position in the direction opposite to that in FIG. 14, the upper arm portion 11a of the torsion spring 11 in the drawing with respect to the contact portions 5c2 and 5d is the same as above. Abut.

  That is, when the zoom lever 5 is rotated in the opposite direction from the neutral position and the low-speed zoom operation to the wide side is performed, the upper arm portion 11a of the torsion spring 11 in FIG. Touch. The arm 11a on the upper side of the figure of the torsion spring 11 abuts immediately before the zoom operation to the wide side is gradually switched from the low speed to the high speed by rotating the zoom lever 5 in the opposite direction (θc). It contacts both the parts 5c2 and 5d. Further, when the zoom lever 5 is further rotated in the opposite direction to perform a high-speed zoom operation toward the wide side, the upper arm portion 11a of the torsion spring 11 contacts only the contact portion 5d.

  The relationship between the rotation angle of the zoom lever 5 and the operation load is the same as that in the graph shown in FIG. 8 of the first embodiment at the rotation angle θc. Other configurations and operational effects are the same as those of the first and second embodiments.

(Fourth embodiment)
Next, a digital camera which is a fourth embodiment of the imaging apparatus of the present invention will be described with reference to FIG. FIG. 16 is a view of the torsion spring 11, the brush holding member 23, and the rubber members 26 and 27 of the zoom lever unit from the upper surface side of the camera body 1. Note that portions that overlap or correspond to the third embodiment will be described with the same reference numerals.

  FIG. 16A is a diagram showing a state when the zoom lever 5 is in the neutral position. As shown in FIG. 16A, the contact portions 5 c 1 and 5 c 2 are configured by assembling a rubber member 27 on a shaft provided on the brush holding member 23. On the other hand, the contact portion 5d is configured only by a resin shaft provided on the brush holding member 23.

  FIG. 16B shows a state in which the zoom lever 5 is rotated until the zoom speed switching brush 14 reaches the position shown in FIG. FIG. At this time, the lower arm portion 11a of the two arm portions 11a of the torsion spring 11 contacts the contact portion 5c1, and generates a reaction force that pushes the zoom lever 5 back to the neutral position.

  FIG. 16 (c) shows that the zoom lever 5 is further rotated from the state shown in FIG. 16 (b) and the tele zoom side shown in FIG. 13 (c) is changed from the low speed zoom operation toward the tele side shown in FIG. 13 (b). It is a figure which shows the state just before switching to a high-speed zoom operation | movement in stepwise. In this state, the lower arm portion 11a of the torsion spring 11 is in contact with the two contact portions 5c1 and 5d.

  At this time, in contrast to the third embodiment in which the contact portion 5d is made of the rubber member 27, in this embodiment, the surface of the contact portion 5d is made of resin. The sliding resistance between the arm portion 11a and the contact portions 5c1 and 5d is reduced as compared with the third embodiment. Accordingly, the amount of increase in the load applied to the zoom lever 5 at the moment of FIG. 16C (Md−Mc) in FIG. Can be more clearly determined.

  FIG. 16D shows a state where the zoom lever 5 is further rotated from the state of FIG. 16C and the high-speed zoom operation toward the tele side shown in FIG. 13C is performed. FIG. At this time, the lower arm portion 11a of the torsion spring 11 comes into contact with the contact portion 5d located on the side closer to the holding portion 11b of the contact portions 5c1, 5c2, and 5d. Other configurations and operational effects are the same as those of the third embodiment.

  The configuration of the present invention is not limited to those exemplified in the above embodiments, and the material, shape, dimensions, form, number, arrangement location, and the like are appropriately changed without departing from the gist of the present invention. Is possible.

  In the above-described four embodiments, the example in which the present invention is applied when the change rate of the photographing magnification is switched has been described. However, the present invention may be applied to other uses. For example, the present invention may be applied when selecting an image to be reproduced from a plurality of images recorded on a recording medium. In this case, the change to the tele side or the wide side in the above four embodiments may be replaced with the change to the next image or the previous image, respectively, and the low speed and high speed may be replaced with the size of the number of image feeds, respectively. That is, since it can also be applied to a function that can be executed by an electronic device such as a display device, such as the image feed operation described above, the change in the parameter of the function corresponding to the operation member according to the operation amount to the operation member The present invention can be applied to any electronic device whose amount is changed.

  In the above-described four embodiments, the case where the amount of change is switched between two (low speed zoom / high speed zoom) has been described. However, the present invention may be applied to a case where more changes are performed. For example, the zoom speed may be changed to low speed, medium speed, and high speed, and the zoom lever 5 in the first embodiment may be provided with three contact portions.

DESCRIPTION OF SYMBOLS 1 Camera body 2 Lens barrel 5 Zoom lever 5c 1st contact part 5d 2nd contact part 11 Torsion spring 11a Arm part 11b Holding part 14 Zoom speed switching brush 15b Zoom speed switching pattern

Claims (8)

An electronic device comprising switching means for stepwise switching a parameter change amount of a function corresponding to the operation unit according to an operation amount of the operation unit,
A first contact portion that moves in conjunction with an operation of the operation portion;
A second contact portion that is disposed at a position away from the first contact portion and moves in conjunction with an operation of the operation portion;
Biasing means that elastically deforms when the first abutting portion and the second abutting portion abut and applies an operation load by a biasing force to the operation portion;
The first abutting portion and the second abutting portion are configured so that the abutting with respect to the urging means is changed from the first abutting portion to the second abutting when the change amount of the parameter is switched. It is arranged at a position away from each other so as to switch to the contact part,
The operation load applied to the operation unit when the first contact unit abuts is different from the operation load applied to the operation unit when the second contact unit abuts. Features electronic equipment.   The first abutting portion and the second abutting portion are configured so that the abutting with respect to the urging means is changed from the first abutting portion to the second abutting portion when the change amount of the parameter increases. The electronic apparatus according to claim 1, wherein the electronic apparatus is disposed at positions separated from each other so as to be switched to the contact portion.   The operation load applied to the operation unit by the contact of the second contact unit is larger than the operation load applied to the operation unit by the contact of the first contact unit. The electronic device according to claim 1, wherein the electronic device is an electronic device.   The operation unit is rotated, and a distance from the rotation center of the operation unit to the first contact portion is larger than a distance from the rotation center of the operation unit to the second contact portion. The electronic device according to claim 1, wherein the electronic device is short.   The at least 1st contact part is formed with the elastic member among the said 1st contact part and the said 2nd contact part, The any one of Claims 1 thru | or 4 characterized by the above-mentioned. The electronic device as described in the paragraph.   6. The electronic device according to claim 1, further comprising a restriction unit that restricts movement of the operation unit by contacting the first contact unit at a moving end of the operation unit. 7. .   At the same time as the change amount of the parameter is switched or immediately before the change amount of the parameter is switched, the contact with the urging means is switched from the first contact portion to the second contact portion. The electronic device according to any one of claims 1 to 6. The electronic device is an imaging device,
The electronic apparatus according to claim 1, wherein the change amount of the parameter is a change speed when changing the imaging magnification.