JP5087873B2 - camera - Google Patents

Description

The present invention relates to camera.

Patent Document 1 discloses a camera including a flash light emitting unit that can be popped up.
However, in the camera described in Patent Document 1, the case that supports the flash light emitting unit is attached to the upper cover of the camera body via a separate bearing. There was a problem that the play was large.
In particular, when the pop-up operation is performed by a spring force, the radial backlash with respect to the upper cover of the case is increased by being moved in one direction, and the entire flash light emitting unit is tilted to be generated between the case and the upper cover. There are problems that the gaps are uneven depending on the position and that the pop-up operation is troubled.

Patent Document 2 discloses a camera that is provided with a strobe position lever (auxiliary arm) for determining a pop-up position, and an impact absorbing member is attached to the strobe position lever so as to absorb a shock when the strobe unit is popped up.
However, if there is only one strobe unit positioning part of the strobe position lever as in Patent Document 2, the degree of freedom of arrangement of the case and strobe position lever is low, and the flash light emitting part pops up to the required height. In many cases, it could not be used because it was not possible.
Therefore, if there are two strobe unit positioning parts of the strobe position lever and no guide part corresponding to the strobe position lever groove is formed, the degree of freedom of arrangement is high and the flash light emitting part can be popped up to a higher position. And can be downsized.
However, in this case, the position of the strobe position lever is regulated only by the pop-up position, so that the strobe position lever can be moved freely except in the pop-up state, and the strobe unit positioning part collides with the case, upper cover, etc. There was a problem that a collision sound was generated.
JP-A-5-27306 Japanese Patent Laid-Open No. 10-48712

The subject of this invention is providing the camera which can suppress the backlash of an arrangement | positioning member and a camera main body .

According to a first aspect of the present invention, there is provided a camera main body having a hole, an arrangement part for arranging a light emitting part, a cylindrical shaft part fitted into the hole from the outside of the camera main body, and an outer side of the camera main body. A positioning member that is positioned and protrudes from the outer peripheral surface of the shaft portion and is rotatable with respect to the camera body between a use position and a non-use position, and a camera on the inner peripheral side of the shaft portion A retaining member having a cylindrical portion inserted from the inside of the main body and a flange portion that is located inside the camera main body and protrudes from the outer peripheral surface of the cylindrical portion is provided.
A camera according to a second aspect is the camera according to the first aspect, further comprising a screw positioned outside the camera body and screwed into the cylindrical portion.
The camera according to claim 3 is the camera according to claim 1 or 2, wherein the arrangement member is on the axis of the shaft portion and the side from which the shaft portion protrudes. A coil spring having a cylindrical spring-hanging shaft portion protruding on the opposite side, fitted to the outer peripheral portion of the spring-hanging shaft portion, and biasing the arrangement member to rotate from the non-use position to the use position Is further provided.
The camera according to claim 4 is the camera according to any one of claims 1 to 3, wherein the camera has a fitting hole that fits in an outer peripheral portion of the shaft portion, and the shaft portion is the center. It is rotatable, and further comprises a defining member that defines the use position of the arrangement member.
According to a fifth aspect of the present invention, in the camera according to the fourth aspect, the defining member is sandwiched between the camera body and the flat portion.
The camera according to claim 6 is the camera according to claim 4 or 5, wherein the axial dimension of the shaft portion is the thickness of the camera body in the hole portion, and the size of the defining member. It is shorter than the total dimension of the axial direction.
According to a seventh aspect of the present invention, there is provided a camera main body having a hole, an arrangement part for arranging a light emitting part, a cylindrical shaft part fitted into the hole from the outside of the camera main body, and an outer side of the camera main body. A positioning member that is positioned and protrudes from the outer peripheral surface of the shaft portion and is rotatable with respect to the camera body between a use position and a non-use position, and is fitted to the outer peripheral portion of the shaft portion And a defining member that is rotatable about the shaft portion and defines the use position of the arrangement member.

According to the present invention, play between the arrangement member and the camera body can be suppressed .

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

(Embodiment)
FIG. 1 is a side view showing the vicinity of the flash light emitting portion of the camera of the present embodiment.
FIG. 2 is a perspective view showing the vicinity of the rotation center of the light unit.
FIG. 3 is a perspective view showing the lower case of the light unit.
FIG. 4 is a cross-sectional view showing an AA cross section indicated by an arrow in FIG.
In the camera according to the present embodiment, the light unit 10 provided with the flash light emitting unit 11 is movable with respect to the camera body 20 between a non-use position where the light unit 10 is housed and a use position where light can be emitted. . In the following description, the movement of the light unit 10 from the non-use position to the use position is referred to as pop-up.
The light unit 10 includes a flash light emitting unit 11, a light unit lower case 12, a light unit upper case 13, an auxiliary arm 14, a collar 15, a screw 16, a coil spring 17, a wiring member 18, a bearing collar 19, and the like. Are arranged so as to sandwich a position where a not-shown pentaprism is incorporated.

The flash light emitting unit 11 includes a xenon tube and a reflection plate (not shown), and emits auxiliary illumination light during photographing. The flash light emitting unit 11 is connected to a circuit board (not shown) provided inside the camera body 20 by a wiring member 18.
The light unit lower case 12 is a member serving as a base of the light unit 10, and includes a distal end portion 12a on which the flash light emitting unit 11 is disposed and an arm-shaped portion connected to the camera body 20 in a bifurcated form from the distal end portion 12a. 12b, 12c.
The arm-shaped portion 12b is provided with a shaft portion 12d that protrudes cylindrically toward the camera body 20 side. The shaft portion 12 d is fitted to the inner diameter of the hole portion 20 a opened in the camera body 20. Therefore, the position of the light unit lower case 12 is directly determined with respect to the camera body 20 without any other parts interposed therebetween. Thereby, the position of the light unit lower case 12 with respect to the camera body 20 does not vary due to the variation of the component dimensions due to the dimensional tolerance allowed when manufacturing the components.

On the axis line of the shaft portion 12d and on the side opposite to the side from which the shaft portion 12d protrudes, a spring hooking shaft portion 12e is provided protruding in a cylindrical shape. The inner diameter portions of the shaft portion 12d and the spring hanging shaft portion 12e are through holes having the same inner diameter. The coil portion of the coil spring 17 is fitted on the outer peripheral portion of the spring hooking shaft portion 12e.
The coil spring 17 is a torsion coil spring, and one arm is hung on the camera body 20 and the other arm is hung on the light unit lower case 12 to urge the light unit 10 toward the use position. When the light unit 10 is not in use, the claw 21 provided on the camera body 20 is engaged with an engaging portion (not shown) provided on the lower case 12 of the light unit. The claw 21 is driven by the driving mechanism to release the engagement with the lower case 12 of the light unit, and the pop-up operation is performed by the urging force of the coil spring 17.

Thus, in the present embodiment, the coil spring 17 is provided in a portion where the outer diameter of the shaft portion 12d is fitted to the inner diameter of the hole 20a opened in the camera body 20, and thus the coil spring 17 is provided. Thus, even if an urging force is applied to the light unit lower case 12, the position of the light unit lower case 12 with respect to the camera body 20 is not greatly displaced. Therefore, the gap between the camera body 20 and the light unit 10, especially the gap in the non-use state does not change depending on the location, and the pop-up operation does not become an obstacle.
A flat surface portion 12f is formed at the base portion where the shaft portion 12d of the light unit lower case 12 protrudes. The flat surface portion 12f is a portion that determines a position in a direction in which the shaft portion 12d is inserted into the hole portion 20a with an auxiliary arm 14 described later interposed therebetween.

A collar 15 is inserted into the inner diameter portion of the shaft portion 12d and the spring hanging shaft portion 12e. The collar 15 has a cylindrical portion 15a that is inserted into the inner diameter portion of the shaft portion 12d and the spring hook shaft portion 12e, and a flange portion 15b that protrudes from the cylindrical portion in the outer diameter direction. In the collar 15, the cylindrical portion 15 a is inserted into the inner diameter portion of the shaft portion 12 d and the spring hook shaft portion 12 e from the direction opposite to the direction in which the shaft portion 12 d is inserted into the hole portion 20 a, and the screw 16 is inserted into the cylindrical portion 15 a. By screwing, it is attached to the inner diameter portion of the shaft portion 12d and the spring hanging shaft portion 12e. The flange portion 15b is in contact with the inner wall of the camera body 20, thereby determining the position of the shaft portion 12d in the direction of coming out of the hole portion 20a.
The axial dimension of the cylindrical portion 15a is set to be longer than the axial dimension of the shaft portion 12d and the spring hooking shaft portion 12e, and the axial dimension of the shaft portion 12d is determined by the hole 20a. The dimension is set to be shorter than the total dimension of the thickness of the camera body 20 in the provided portion and the thickness of an auxiliary arm 14 described later. Thereby, even if the screw 16 is tightened, the light unit lower case 12 can be rotated without being fixed to the camera body 20.

  The arm portion 12c on the axis line of the shaft portion 12d and opposite to the arm portion 12b on which the shaft portion 12d is provided is not provided with a shape corresponding to the shaft portion 12d. This portion of the light unit lower case 12 is provided with a through hole 12h, and the camera body 20 is provided with a through hole 20b. A bearing collar 19 is inserted into the through hole 12h and the through hole 20b. The bearing collar 19 is formed so that a retaining shape (not shown) can be elastically deformed. By inserting the bearing collar 19 into the through hole 12 h and the through hole 20 b, the bearing collar 19 can hold its own position without coming out in the thrust direction. ing. The bearing collar 19 is a hole through which the shaft center portion passes, and the wiring member 18 passes through this hole.

Since the light unit lower case 12 has the shaft portion 12d described above, it is difficult to assemble in the drawing, but the light unit lower case 12 of the present embodiment is a resin molded product. Therefore, it is easy to be elastically deformed and can be assembled to the camera body 20 while bending the arm portions 12b and 12c.
The light unit upper case 13 is an appearance member fixed to the light unit lower case 12 so as to hide the inside of the light unit 10.

FIG. 5 is a view showing the vicinity of the auxiliary arm 14. FIG. 5A shows a cross-sectional view seen from the direction of the subject when in the use position, FIG. 5B shows a perspective view from the side when in the use position, and FIG. FIG. 5D shows a cross-sectional view seen from the direction of the subject when in the non-use position, and FIG. 5D shows a perspective view from the side when in the non-use position.
The auxiliary arm 14 is a substantially plate-like member that has a fitting hole 14a that fits into the shaft portion 12d and is rotatable about the shaft portion 12d. The auxiliary arm 14 is provided in the same manner on the side where the bearing collar 19 is provided.
A first pin 14 b is caulked and fixed to the side of the auxiliary arm 14 facing the camera body 20, and a second pin 14 c is caulked and fixed to the side facing the light unit lower case 12. A rubber ring 30 is fitted to the first pin 14b and the second pin 14c, and the entire outer periphery of the first pin 14b and the second pin 14c is covered with rubber. Yes.
The first pin 14b is inserted into the main body side engaging groove 201 provided in the camera main body 20, and the second pin 14c is inserted into the case side engaging groove 121 provided in the light unit lower case 12. Has been.

When the light unit 10 is in the pop-up use position (FIGS. 5A and 5B), the first pin 14b comes into contact with the positioning end 201a of the main body side engaging groove 201, and the second pin The use position of the light unit 10 is determined by abutting the positioning end 121a of the case side engagement groove 121 with 14c.
Here, since the rubber ring 30 is fitted to the first pin 14b and the second pin 14c, the first pin 14b comes into contact with the positioning end 201a of the main body side engaging groove 201 by the pop-up operation. The collision noise generated by the second pin 14c coming into contact with the positioning end 121a of the case side engagement groove 121 can be reduced, and the impact can be suppressed.
In this use position, the first pin 14 b comes into contact with the positioning end 201 a of the main body side engaging groove 201 by the urging force of the coil spring 17, and the second pin 14 c is positioned on the positioning end of the case side engaging groove 121. Since it is in contact with the portion 121a, the position of the auxiliary arm 14 does not become unstable.

  On the other hand, when the light unit 10 is in the non-use position (FIGS. 5C and 5D) in the retracted state, the claw 21 provided in the camera body 20 is attached to the light unit lower case 12 as described above. Since it is engaged with an engagement portion (not shown) provided, the urging force of the coil spring 17 acts on the claw 21, but does not act on the first pin 14b and the second pin 14c. Accordingly, the auxiliary arm 14 has the first pin 14b at the position where the second pin 14c contacts the non-positioning end 201b of the main body side engaging groove 201 and the non-positioning end 121b of the case side engaging groove 121. It can move freely between the contact positions, that is, the position is indefinite.

  However, in this embodiment, since the rubber ring 30 is fitted to the first pin 14b and the second pin 14c, the light unit 10 is in the non-use position in the storage state, and the position is indefinite. In addition, it is possible to reduce a collision sound when the second pin 14c comes into contact with the non-positioning end 201b and when the first pin 14b comes into contact with the non-positioning end 121b. Therefore, even if the camera is walked or shaken with a hand, an unnatural collision sound is not generated.

According to this embodiment, since the outer diameter of the shaft portion 12d is fitted to the inner diameter of the hole 20a opened in the camera body 20, the position of the light unit 10 with respect to the camera body 20 is accurately determined. It is possible to prevent appearance defects such as non-uniform gaps at non-use positions, and to prevent the dimensional variation of parts from adversely affecting the pop-up operation.
Furthermore, according to the present embodiment, since the rubber ring 30 is fitted to the first pin 14b and the second pin 14c, it is possible to reduce a collision sound and an impact at the time of pop-up, and a use position including a non-use position. In other cases, the occurrence of an unnatural collision sound can be suppressed even when the position of the auxiliary arm 14 is indefinite.

(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
(1) In the present embodiment, an example in which the shaft portion 12d is provided in the light unit lower case 12 and the hole portion 20a is provided in the camera body 20 has been described. A hole portion may be provided, and a shaft portion may be provided on the camera body to fit these.

(2) In the present embodiment, an example in which the shaft portion 12d of the light unit lower case 12 is prevented from being detached by the collar 15 is not limited thereto, but, for example, a retaining shape that uses bending at the tip of the shaft portion. May be formed, or may be secured by assembling a screw or the like at the tip of the shaft portion.

(3) In the present embodiment, an example in which the rubber ring 30 is fitted as a noise-reducing member on the first pin 14b and the second pin 14c has been shown. A ring formed of another material having a silencing effect may be used.

It is a side view which shows the flash light emission part vicinity of the camera of this embodiment. It is a perspective view which shows the rotation center vicinity of a light unit. It is a perspective view which shows a light unit lower case. It is sectional drawing which shows the AA cross section shown by the arrow in FIG. It is a figure which shows the auxiliary arm 14 vicinity.

Explanation of symbols

  10: Light unit, 11: Flash light emitting part, 12: Light unit lower case, 12d: Shaft part, 13: Light unit upper case, 14: Auxiliary arm, 15: Collar, 16: Screw, 17: Coil spring, 18: Wiring member, 19: bearing collar, 20: camera body, 20a: hole, 121: case side engaging groove, 201: body side engaging groove

Claims (7)

A camera body having a hole;
An arrangement part for arranging the light emitting part, a cylindrical shaft part that fits into the hole part from the outside of the camera body, and a flat part that is located outside the camera body and protrudes from the outer peripheral surface of the shaft part An arrangement member rotatable with respect to the camera body between a use position and a non-use position ;
A camera comprising: a cylindrical member that is inserted from the inner side of the camera body on the inner peripheral side of the shaft part; and a retaining member that is located on the inner side of the camera body and protrudes from the outer peripheral surface of the cylindrical part. . The camera of claim 1,
Further provided is a screw positioned outside the camera body and screwed into the cylindrical portion.
Camera characterized by. In the camera according to claim 1 or 2,
The arrangement member has a cylindrical spring-loaded shaft portion that protrudes on a side opposite to a side on which the shaft portion protrudes on the shaft of the shaft portion,
And a coil spring that is fitted to the outer peripheral portion of the spring hanging shaft portion and biases the arrangement member to rotate from the non-use position to the use position.
Camera characterized by. In the camera according to any one of claims 1 to 3,
It further has a defining member that has a fitting hole to be fitted to the outer peripheral portion of the shaft portion, is rotatable about the shaft portion, and defines the use position of the arrangement member.
Camera characterized by. The camera according to claim 4, wherein
The defining member is sandwiched between the camera body and the plane portion.
Camera characterized by. The camera according to claim 4 or 5,
The axial dimension of the shaft part is shorter than the dimension of the thickness of the camera body in the hole and the axial dimension of the defining member.
Camera characterized by. A camera body having a hole;
An arrangement part for arranging the light emitting part, a cylindrical shaft part that fits into the hole part from the outside of the camera body, and a flat part that is located outside the camera body and protrudes from the outer peripheral surface of the shaft part An arrangement member rotatable with respect to the camera body between a use position and a non-use position;
A fitting hole that fits in an outer peripheral portion of the shaft portion, and is rotatable about the shaft portion, and includes a defining member that defines the use position of the arrangement member.
Camera characterized by.

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