JP2005301014A - Stroboscopic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stroboscopic device such that a light emission part housing can stably be projected from and stored in a storage part of a device body without requiring any troublesome adjusting operation. <P>SOLUTION: The device body 26 is fitted with a freely swingable lock lever 34 which is provided with a lock part 40 locked to an engagement part 33 of the light emission part housing 27 stored in the storage part 29 of the device body 26 at one end and provided with an abutting part 41 at the other end, a freely swingable return lever 35 such that a cam part 44 abutting against a rib 32 of the light emission part housing 27 is projected from an arm part 43, a swing arm 36 whose tip part 47 swings between nearby the lock lever 34 and a position where it abuts against the return lever 35, and a solenoid 38 which switches the swing arm 36 between a state where the swing arm is held and a state in which the swing arm is released, and the swing arm 36 is equipped with a pusher 37 which presses the abutting part 41 of the lock lever 34 so that the lock part 40 of the lock lever 34 engages the engagement part 33 of the light emission part housing 27. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stroboscopic device including a light emitting unit housing incorporating a discharge tube and the like, and a base member to which the light emitting unit housing is attached, and more specifically, the light emitting unit housing is placed in the base member when the strobe is not used. The present invention relates to a strobe device in which a light emitting unit housing is projected from a base member when housed and used.

  As a strobe device built in a camera or the like, for example, a strobe device provided with a discharge tube or the like is accommodated in a base member when not in use and protrudes from the base member only when in use (proposed) ( For example, see Patent Document 1).

  In such a strobe device, as shown in FIG. 7, when the self-holding solenoid 2 is energized by the switch ON when the strobe body 1 is in the retracted state, the magnetic force holding the movable iron core 3 is reduced. It becomes zero, and the movable iron core 3 projects in the left direction in the figure by the clockwise biasing force of the spring 4 in the figure.

  At this time, since the lower part of the tension lever 5 is pushed by the movable iron core 3, the tension lever 5 is tilted clockwise around the axis 7 against the tensile biasing force of the spring 6, and thereby As shown in FIG. 9, the latch of the upper portion of the tension lever 5 with respect to the engaging portion 8 of the strobe body 1 is released, and the strobe body 1 rises from the base member as shown in FIG. And stand upright. Then, as shown in FIG. 10, the pin 10 that has been in contact with the lower portion of the strobe body 1 and pushed down the spring holding lever 4 a is pushed upward by the rotational biasing force of the spring 4, so that the spring holding lever 4 a becomes free. Thus, the rotational biasing force of the spring 4 that pushes the movable iron core 3 in the left direction disappears.

  As a result, the strobe body 1 is in an upright state as shown in FIG. 10 because the tensioning lever 5 rotates counterclockwise against the rotational biasing force of the spring 4 by the tension biasing force of the spring 6. It becomes. At this time, the movable iron core 3 is pushed rightward in the drawing and is held by the magnetic force of the solenoid 2. In this state, use the flash function. After use, the strobe body 1 can be returned to the housed state shown in FIG. 7 again by pushing it down with a finger.

  However, such a strobe device has a problem that it is very difficult to set the balance condition of the urging forces of the two springs 4 and 6 acting on the tension lever 5, and the number of parts increases. Therefore, for example, a strobe device as shown in FIGS. 11 and 12 has also been proposed.

  In this strobe device, a light emitting unit housing 11 having a discharge tube (not shown) or the like swings between a state in which it is housed in a housing portion 13 provided in a base member 12 and a state in which it protrudes. However, the spring for energizing the tension lever which locks the light emission part housing | casing 11 in the accommodating part 13 is made into the single.

  That is, both ends of the helical torsion spring 14 for urging the light emitting unit casing 11 to be in the standing posture are attached to the light emitting unit casing 11 and the base member 12. The slide member 15 is slidably overlapped with the bottom surface of the base member 12, and the slide pressing plate 16 is slidably overlapped with the slide member 15. Long holes 17, 17 are formed at two locations on the slide holding plate 16, and two holding screws 18, 18 are fastened to the slide member 15 from the long holes 17, 17, and the slide holding plate 16 is mounted on the slide member 15. It is made to be able to slide with.

  Further, an opening is formed in the middle portion of the slide pressing plate 16, and a tension spring 19 is disposed in the opening. One end of the tension spring 19 is attached to the slide member 15, and the other end is attached to the slide holding plate 16, so that even if the slide holding plate 16 moves in the left direction in the drawing, it returns to the right direction in the drawing.

  One end of the slide member 15 is connected to the movable iron core 21 of the self-holding solenoid 20. Normally, that is, when the switch is OFF, the solenoid 20 holds the movable iron core 21 by a magnetic force so that the slide member 15 is positioned on the right side in the figure against the spring force of the helical torsion spring 14. . The force with which the solenoid 20 holds the movable iron core 21 is set larger than the tension of the tension spring 19. At this time, one end portion of the slide pressing plate 16 presses the contact portion 23 of the locking lever 22 by the magnetic force of the solenoid 20 and the spring force of the tension spring 19, so that the hook-shaped locking portion of the locking lever 22 is pressed. The state in which the light emitting unit housing 11 is housed in the housing unit 13 is maintained by engaging the engaging portion 25 with which the light emitting unit housing 11 is recessed.

  When the switch is turned on, the solenoid 20 loses magnetic force and does not hold the movable iron core 21. Then, the slide member 15 and the slide holding plate 16 can move in the left direction in the figure, and the light emitting unit housing 11 pushes the locking part 24 of the locking lever 22 by the spring force of the helical torsion spring 14 to store the storage part 13. Jump out from the inside and stand upright and use the strobe function.

  Immediately before the light emitting unit housing 11 is fully upright, the rib 52 provided in the vicinity of the pivot 51 of the light emitting unit housing 11 comes into contact with the return arm 53 projecting from the slide member 15, thereby sliding. The member 15 and the slide pressing plate 16 move in the right direction in the figure, and the pressing portion of the sliding pressing plate 16 presses the contact portion 23 of the locking lever 22 so that the locking lever 22 is in an upright posture. .

After using the strobe device, the light emitting unit housing 11 can be returned to the state (not shown) stored in the storage unit 13 again by pushing down the light emitting unit housing 11 with a finger. Immediately before the light emitting unit housing 11 is completely retracted, the locking portion 24 of the locking lever 22 is pressed against the end of the light emitting unit housing 11 so that the locking lever 22 is tilted and the slide pressing plate 16 is tilted. Is pressed by the tension spring 19, and the movable iron core 21 is prevented from being detached from the solenoid 20 having a magnetic force larger than the tension of the tension spring 19. When the light emitting unit housing 11 is completely stored, the slide pressing plate 16 is pressed rightward in the drawing by the tension spring 19, and the pressing portion of the sliding pressing plate 16 presses the contact portion 23 of the locking lever 22. When the locking lever 22 is in the standing posture, the locking portion 24 of the locking lever 22 is locked to the engaging portion 25 of the light emitting unit housing 11, and the light emitting unit housing 11 is placed in the storage unit 13. Maintain the stowed state.
Japanese Unexamined Patent Publication No. 7-36095

  In the conventional strobe device shown in FIGS. 11 and 12, the slide member 15 and the slide pressing plate 16 are overlapped so as to be freely slidable and are pressed by two pressing screws 18 and 18, respectively. When the two members 15 and 16 move relative to each other, a relatively large frictional force acts because they slide in a surface contact state.

  Therefore, in order to smoothly perform the relative movement operation of the two members 15 and 16 that slide with each other, it is necessary to accurately adjust the pressing and adjusting of the two holding screws 18 and 18. Is very difficult.

  SUMMARY OF THE INVENTION Accordingly, the present invention provides a strobe device that can stably project and store a light emitting unit housing from the inside of a storage unit of a base member without requiring troublesome adjustment work. Is an issue.

  The strobe device according to the present invention includes a movable part that is fixed by turning off the solenoid and is movable when turned on, a contact part that contacts the movable part, and a locking part that locks the light emitting unit housing. The locking lever is provided, and the movable portion is fixed and locked by the locking lever to be in the storage state, and the movable portion is movable to release the locking of the locking lever. A light-emitting unit housing that rises by an urging force, and a return unit that returns the solenoid to a position where the movable iron core is attracted and fixed by the standing operation of the light-emitting unit housing. Is a pop-up type strobe device provided with a pusher that comes into contact with the abutting part at one end and can be moved in and out without moving the movable part by urging, the movable part having one end pivotally supported and the other end The locking lever and Is characterized in that between the return portion is swingable swing arm.

  According to the strobe device of the present invention, since the movable part is composed of a swing arm, it is only necessary to fix only the pivotal support part of the swing arm by screw tightening, etc. Generation can also be reduced.

  In the strobe device, the pusher is preferably attached to the other end of the swing arm so as to be slidable in the width direction of the swing arm.

  According to this strobe device, the pusher is attached to the other end of the swing arm as a movable part and is slidable in the width direction of the swing arm. Part) and the slide presser plate 16 (pusher) overlap each other in the longitudinal direction and slide, so there is no concern that the mutual sliding resistance increases and malfunction occurs.

  Further, in the strobe device, it is preferable that the urging force of the pusher is set to be stronger than the urging force of the light emitting unit housing within a range not exceeding the attracting force of the solenoid.

  According to this strobe device, the pushing force of the pusher overcomes the urging force to release the locking lever when the light emitting unit housing is housed, so that the locking lever is inadvertently released to emit light. The unit housing does not stand up. Further, since the pressing force of the pusher is set in a range that does not exceed the attracting force of the solenoid, there is no possibility that the solenoid is detached and the light emitting unit housing cannot be stored when the light emitting unit housing is stored.

  According to the present invention, the sliding resistance of the operating part as in the prior art is kept low and the structure is simple, so that not only the productivity is improved, but also the quality is not varied, and the durability is maintained. Can be improved. Therefore, the present invention can provide a strobe device having a predetermined quality at low cost.

  An embodiment of a strobe device according to the present invention will be described with reference to FIGS. The strobe device includes a base member 26, a light emitting unit casing 27, a locking lever 34, a return arm 35, a swing arm 36, a pusher 37, and a solenoid 38.

  The base member 26 is provided with a storage portion 29 for storing the light emitting portion housing 27 in a state of being embedded, and a drive mechanism 28 is attached.

  The light emitting unit housing 27 includes a discharge tube (not shown) and the like, is supported on the side surface of the base member 26 at a fulcrum 30 so as to be swingable, and is a spring like a helical torsion spring (hereinafter referred to as “torsion spring”). .) 31 is biased so as to protrude and stand up from the storage portion 29 of the base member 26. A rib 32 such as a protrusion is provided on the fulcrum 30 side of the light emitting unit housing 27. Furthermore, a recessed engagement portion 33 is provided on the distal end side of the light emitting unit housing 27. The light emitting unit housing 27 is easily housed in the housing portion 29 of the base member 26 due to the recessed shape of the engaging portion 33, but by changing the shape of the housing portion 29, the engaging portion 33 may have a protruding shape or the like.

  The locking lever 34 is attached to the side surface of the base member 26 so that the intermediate portion can swing at a fulcrum 39, and has a hook-shaped locking portion 40 that locks to the engaging portion 33 of the light emitting unit housing 27 on one end side. And a contact portion 41 having a wider width on the other end side.

  The return arm 35 is a return portion described in the claims. As shown in FIG. 1, the return arm 35 is attached to the side surface of the base member 26 so that the base end portion can swing at the fulcrum 42, and like a pendulum. A reciprocating arm portion 43 and a cam portion 44 that protrudes from the side surface of the arm portion 43 and contacts and separates from the rib 32 of the light emitting portion housing 27 are provided. The return arm 35 is configured such that the cam portion 44 is urged toward the rib 32 of the light emitting portion housing 27 by a torsion spring 45 such as a helical torsion spring.

  The swing arm 36 is attached to the bottom surface of the base member 26 so that the base end of the swing arm 36 is swingable at a fulcrum 46, and the distal end portion 47 is near the contact portion 41 of the locking lever 34 and the arm portion 43 side of the return arm 35. It is supposed to reciprocate between. A protruding portion 48 that protrudes from and comes into contact with the arm portion 43 of the return arm 35 protrudes from the tip portion 47 of the swing arm 36.

  A rod-like pusher 37 that reciprocates in the width direction of the swing arm 36 is provided at the distal end portion 47 of the swing arm 36. A flange portion is formed at the intermediate portion of the pusher 37, and a spring (hereinafter referred to as a “slide spring”) 49 such as a compression coil spring is provided between the flange portion and a side end of the swing arm 36 on the return arm 35 side. Winding is applied, and the end of the pusher 37 is urged so as to press the contact portion 41 of the locking lever 34.

  A movable iron core 50 of a self-holding solenoid 38 is attached to an intermediate portion of the swing arm 36. The movable iron core 50 is normally held in a retracted state by a magnetic force. However, when a switch (not shown) is turned on, the magnetic force of the solenoid 38 disappears, and the movable iron core 50 can be protruded / retracted, and the swing is performed. The arm 36 is opened to be swingable. A protrusion is provided in the middle part of the swing arm 36, and an elongated hole for engaging the protrusion is formed in the movable iron core 50. When the movable iron core 50 protrudes, the tip end side of the swing arm 36 is directed to the return arm 35 side. Have been to move. The magnetic force of the solenoid 38 is set to be stronger than the urging force of the torsion spring 31 and the slide spring 49.

  The strobe device is configured as described above, and the operation will be described next. First, as shown in FIG. 1, in a state where the light emitting unit casing 27 is stored in the storage unit 29, as shown in FIG. 2B, the movable iron core 50 of the solenoid 38 retracts and swings. The distal end portion 47 of the arm 36 is positioned toward the locking lever 34, and the distal end portion of the pusher 37 presses the contact portion 41 of the locking lever 34 as shown in FIG. Therefore, as shown in FIG. 1, the locking portion 40 of the locking lever 34 locks the engaging portion 33 of the light emitting unit housing 27, and the light emitting unit housing 27 resists the spring force of the torsion spring 31. It will be in the state accommodated in the accommodating part 29. FIG.

  When the switch is turned on, the magnetic force of the solenoid 38 disappears, and the light emitting unit housing 27 pushes the locking part 40 of the locking lever 34 by the engaging part 33 by the spring force of the torsion spring 31. Yes. Accordingly, the locking lever 34 is tilted as shown in FIG. 4A, the pusher 37 is pushed by the contact portion, and the tip 47 of the swing arm 36 is returned to the return arm as shown in FIG. 4B. The movable iron core 50 is detached from the solenoid 38, and the light emitting unit housing 27 protrudes from the storage unit 29 of the base member 26 as shown in FIG. At this time, the protruding portion 48 of the swing arm 36 contacts the arm portion 43 of the return arm 35.

  Subsequently, the light emitting unit casing 27 rises from the storage unit 29 by the spring force of the torsion spring 31. Then, the rib 32 of the light emitting unit housing 27 presses the cam portion 44 of the return arm 35 as shown in FIG. 5 and tilts the return arm 35 toward the locking lever 34. Then, the arm portion 43 of the return arm 35 presses the protruding portion 48 of the swing arm 36 and returns the tip portion 47 of the swing arm 36 toward the locking lever 34. At this time, the movable iron core 50 is retracted into the solenoid 38, so that the swing arm 36 is held by the magnetic force of the solenoid 38. Thereafter, when the light emitting unit casing 27 is fully raised, the return arm 35 is returned to the original position by the torsion spring 45.

  And when returning the light emission part housing | casing 27 in the storage part 29, the light emission part housing | casing 27 is pressed toward the storage part 29 with a finger | toe against the spring force of the torsion spring 31. FIG. At this time, since the swing arm 36 is held by the solenoid 38, the pusher 37 presses the contact portion 41 of the locking lever 34 without returning to the return arm 35.

  However, immediately before the light emitting unit housing 27 is completely stored in the storage unit 29, the locking portion 40 of the locking lever 34 is pushed by the side surface of the light emitting unit housing 27 and tilts. At this time, the contact portion 41 of the locking lever 34 presses the tip of the pusher 37, but the magnetic force of the solenoid 38 is set to be stronger than the elasticity of the slide spring 49, so the slide spring 49 is compressed. It will be.

  When the light emitting unit housing 27 is completely stored in the storage unit 29, the locking portion 40 of the locking lever 34 is engaged in the engaging portion 33 of the light emitting unit housing 27. At this time, the contact portion 41 of the locking lever 34 is pressed by the pusher 37 biased by the slide spring 49, so that the locking portion 40 of the locking lever 34 is engaged with the engaging portion 33 of the light emitting unit housing 27. The light emitting unit housing 27 is prevented from jumping out of the storage unit 29 by the spring force of the torsion spring 31. Therefore, the slide spring 49 having a spring force larger than the spring force of the torsion spring 31 is used.

  In addition, this invention can be variously changed within the range of the technical matter described in the claim, without being limited to the said embodiment. For example, each spring 31, 45, 49 is not limited to the above-described spring, and various springs suitable for use conditions can be used.

  The strobe device according to the present invention is efficiently manufactured without variation in quality, and is useful for a camera incorporating this strobe device.

1 is a front view showing a state in which a light emitting unit housing is housed in a housing unit according to an embodiment of a strobe device according to the present invention. Similarly, in a state in which the light emitting unit housing is housed, (a) is a front view of the main part, and (b) is a bottom view of the main part. Similarly, the front view which shows the state in the middle of the light emission part housing | casing protruding from a storage part Similarly, it is the state in the middle of the light emission part housing | casing protruding from a storage part, Comprising: (a) is a principal part front view, (b) is a principal part bottom view. Similarly, the front view of the state where the light emitting unit housing is completely protruded from the storage unit and is standing. Similarly, a perspective view of the main part of the strobe device Explanatory drawing of the initial state of a conventional strobe device Similarly, an explanatory view of a state in which the locked state of the strobe body in the conventional strobe device is released Explanatory drawing of the state where the strobe body of the conventional strobe device is also projected Similarly, an explanatory diagram of a state before storing the strobe body in the conventional strobe device Front view of a conventional strobe device different from the above Similarly, bottom view of conventional strobe device

Explanation of symbols

26 Base member 27 Light emitting unit housing 29 Storage unit 30 Support point 31 Spring (torsion spring)
32 Rib 33 Engagement part 34 Locking lever 35 Return arm 36 Swing arm 37 Pusher 38 Solenoid 40 Locking part 41 Contact part 43 Arm part 44 Cam part 45 Spring 47 Tip part 48 Projection part

Claims (3)

A movable part fixed by turning off the solenoid and movable by turning on; a latching lever comprising a contact part that contacts the movable part and a latching part that latches the light emitting unit housing; When the movable portion is fixed, the movable portion is locked by the locking lever so that the movable portion is housed, and when the movable portion is movable, the movable portion is erected by urging for releasing the locking of the locking lever. A light emitting unit housing; and a return unit that returns the solenoid to a position where the movable iron core is attracted and fixed by the standing operation of the light emitting unit housing, and the movable unit has the contact portion at one end. It is a pop-up type strobe device equipped with a pusher that can enter and exit without moving the movable part by abutment and biasing,
The strobe device according to claim 1, wherein the movable part is a swing arm whose one end is pivotally supported and the other end is swingable between the locking lever and the return part.   The strobe device according to claim 1, wherein the pusher is attached to the other end of the swing arm so as to be slidable in the width direction of the swing arm. 3. The strobe device according to claim 1, wherein the urging force of the pusher is set to be stronger than the urging force of the light emitting unit housing within a range that does not exceed the attracting force of the solenoid.

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