JP5009401B2 - Camera bracket - Google Patents

Description

  The present invention relates to a camera bracket used when, for example, a telescope is mounted on a camera.

  Conventionally, as this type of camera bracket, a main frame, a lens mounting base attached to the center of the main frame, an L-shaped tripod base attached to the lower surface of the rear end of the main frame, and the tripod base There is known one provided with a camera pedestal attached to a vertical part of the camera via a movable adjustment mechanism (see the following patent document).

To align the optical axis of the telescope mounted on the lens mounting base with the optical axis on the camera side using this camera bracket, operate the two feed screws of the movable adjustment mechanism to move the camera base up, down, left and right. It was necessary to move and position the camera pedestal. Further, it is necessary to slide the lens mounting base in the optical axis direction on the main frame to position the camera in the optical axis direction with respect to the telescope.
JP-A-6-160957 (see paragraphs 0012 to 0016)

  In order to position the camera with respect to the telescope, it is necessary to operate the feed screw or slide the lens mounting base as described above, and there is a problem that a complicated operation is forced.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a camera bracket capable of easily mounting a camera on a telescope or the like.

  In order to solve the above-described problems, a camera bracket according to the present invention is fixed to the platform so as to be substantially perpendicular to the bottom surface of the camera on the platform and the platform that faces the bottom surface of the camera. A main plate facing the front surface of the camera on the table; a mounting main ring fixed to the main plate and fixing an optical device mounted on the camera; and one end of the front surface of the camera and one side surface of the camera. A first positioning member for positioning the camera with respect to the main plate in a direction perpendicular to the front surface of the camera and in a direction perpendicular to the one side surface of the camera; and the other end of the front surface of the camera And a second positioning member for positioning the camera with respect to the main plate in a direction perpendicular to the front surface of the camera in contact with the portion.

  According to the present invention, the camera can be easily attached to the telescope or the like.

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

  1A and 1B show a camera bracket according to a first embodiment of the present invention, in which FIG. 1A is a front view, FIG. 1B is a cross-sectional view taken along the line A-A in FIG. c) is a side view, FIG. 2 is a sectional view of a switching shaft of the first positioning member of the camera bracket shown in FIG. 1, and FIG. 3 is a switching piece of the first positioning member of the camera bracket shown in FIG. (a) is a front view, (b) is a cross-sectional view taken along line BB in FIG. (a), and (c) is a cross-sectional view taken along line CC in FIG. (a).

  As shown in FIG. 1, the camera bracket 1 includes a platform 3, a main plate 4, a mounting device main ring 5, a camera mounting plate 6, a first positioning member 7, and a second positioning member 8.

  The platform 3 has a cylinder having two large diameter portions 31 and 32 and a cylinder having one small diameter portion 33. The small diameter part 33 connects the large diameter part 31 and the large diameter part 32. The large-diameter portion 31 is formed with a screw hole 31a extending in the radial direction. A fixing screw 34 is inserted into the screw through hole 31a.

  The left portion of the main plate 4 (left portion of the main plate 4 in FIG. 1A) is a ring-shaped portion 41, and the right portion of the main plate 4 (right portion of the main plate 4 in FIG. 1A) is a flat plate portion 42. It is.

  The main plate 4 is fixed to the mounting table 3 with a decorative bolt 45 fitted with a washer 44 through a distance adjusting ring 43.

  The wearer main ring 5 is fixed to the ring-shaped portion 41 of the main plate 4 by three set screws 51. The mounting device main ring 5 is formed with a screw hole 52 extending in the radial direction. A fixing screw 53 is inserted into the screw through hole 52. An E-ring 54 is attached to the fixing screw 53.

  An optical device, which will be described later, for example, a telescope (only the eyepiece 21 of the telescope is shown in FIG. 1C) is fixed to the mounting device main ring 5 by a fixing screw 53.

  The camera mounting plate 6 has a substantially rectangular shape, and an eyelet-shaped boss 61 is attached to one end thereof. A screw hole 61 a is formed in the boss 61. The boss 61 is inserted into the screw through hole 31 a of the platform 3. A long hole 62 is formed at the center of the camera mounting plate 6. A camera fixing screw 63 is passed through the long hole 62. A retaining disc 64 is attached to the camera fixing screw 63. Convex portions 65 are formed at both ends of the camera mounting plate 6. The camera mounting plate 6 is more easily bent than the bottom plate (not shown) of the digital camera (camera) 22. The camera fixing screw 63 is screwed into a tripod mounting screw hole (not shown) of the digital camera 22 disposed on the camera mounting plate 6. As a result, the digital camera 22 is fixed on the camera mounting plate 6. At this time, since the central portion of the camera mounting plate 6 bends toward the digital camera 22, the convex portion 65 strongly presses against the bottom plate of the digital camera 22 due to the elastic force of the camera mounting plate 6 returning to the original state. It is done. The digital camera 22 is firmly fixed to the camera mounting plate 6.

  A first positioning member 7 is disposed at the left end of the main plate 4 (left end of the main plate 4 in FIG. 1A), and a second positioning member 8 is disposed at the right end of the main plate 4 (right end of the main plate 4 in FIG. 1A). Is arranged.

  As shown in FIGS. 2 and 3, the first positioning member 7 includes a switching shaft 71 and a switching piece (abutting member) 72.

  The switching shaft 71 has a main shaft portion 71a and a flange portion 71b. A central hole 71c is formed in the main shaft portion 71a. A threaded hole 71d is formed in the flange 71b side portion of the center hole 71c. An annular protrusion 71e is formed on the outer peripheral surface of the main shaft portion 71a. The flange portion 71b is coupled to one end portion of the main shaft portion 71a. A threaded hole 71f is formed in the flange portion 71b. The switching shaft 71 is fixed to the main plate 4 by a fixing screw 73 (see FIG. 1) that passes through the main plate 4 and is screwed into the screw hole 71d. A fixing screw 74 (see FIG. 1) penetrating the main plate 4 is screwed into the screw hole 71f of the flange portion 71b. As a result, the rotation of the switching shaft 71 is prevented. The tip of the fixing screw 74 protrudes from the screw hole 71f.

  The switching piece 72 has a prismatic part 72a and a seat part 72b. The prismatic part 72a has four surfaces 72d-1 to 72d-4. Abutting surfaces 72e-1 to 72e-4 and abutting surfaces 72f-1 to 72f-4 are formed on the respective surfaces 72d-1 to 72d-4. The abutting surfaces 72e-1 to 72e-4 are in contact with the front surfaces (surfaces on the lens side of the camera) of the first to fourth digital cameras, respectively. The abutting surfaces 72f-1 to 72f-4 are in contact with the side surfaces of the first to fourth digital cameras (the end surfaces on the left side when viewed from the viewfinder side of the camera). In addition, the height of the imaging part (not shown) of the 1st-4th digital camera is in agreement. Further, the prismatic part 72a is formed with a central hole 72c capable of accommodating the main shaft part 71a of the switching shaft 71 together with the annular protrusion 71e. The seat 72b is coupled to one end of the prismatic portion 72a. Four holes 72g are formed in the seat 72b. The switching piece 72 is made of an elastic material such as synthetic rubber. Therefore, the switching piece 72 can be mounted on the main shaft portion 71 a of the switching shaft 71 by expanding the opening end of the center hole 72 c of the switching piece 72. As a result, the switching piece 72 can rotate with the main shaft portion 71a of the switching shaft 71 as a rotation axis. When the switching piece 72 rotates, the stepped surface 72h of the center hole 72c engages with the annular protrusion 71e, so that the switching piece 72 is prevented from falling off the switching shaft 71. By inserting the distal end portion of the fixing screw 74 into any one of the four holes 72g, any one of the four surfaces 72d-1 to 72d-4 faces the side surface of the digital camera 22. The switching piece 72 is fixed. In this way, by changing the arrangement of the four surfaces 72d-1 to 72d-4 according to the type of the digital camera 22 arranged on the camera mounting plate 6, a plurality of types of digital cameras 22 with respect to the main plate 4 can be used. Positioning can be performed.

  As shown in FIG. 1, the second positioning member 8 is fixed to the main plate 4 by a fixing screw 83 with a release plate 9 interposed therebetween. The second positioning member 8 has abutting surfaces 81 and 82 having different heights from the main plate 4. The abutting surface 81 is in contact with the front surfaces of the first and second digital cameras, for example, and the front surfaces of the first and second digital cameras are positioned with respect to the main plate 4. The abutting surface 82 is in contact with the front surfaces of the third and fourth digital cameras, for example, and the front surfaces of the third and fourth digital cameras are positioned with respect to the main plate 4. Thus, the second positioning member 8 has a plurality of abutting surfaces 81 and 82 so that a plurality of types of digital cameras 22 can be positioned with respect to the main plate 4.

  The release plate 9 has a facing piece 91 that faces a shutter button (not shown) of the digital camera 22.

  A release seat 11 is attached to the facing piece 91. The release seat 11 holds a cable release (not shown). A sliding member 12 is attached to the release seat 11 so as to be slidable in the shutter button pressing direction.

  In order to attach the digital camera 22 to the camera bracket 1, the surface 72 d-1 corresponding to the digital camera 22 of the switching piece 72 (assuming that the surface 72 d-1 corresponds to the digital camera 22) is digital camera 22 in advance. Is set so as to face the left side surface (the left side surface when the camera is viewed from the viewfinder side).

  Next, the boss 61 of the camera mounting plate 6 is inserted into the through hole 31 a of the large-diameter portion 31 of the platform 3, and the fixing screw 34 is inserted into the screw-through hole 31 a, and the fixing screw 34 is inserted into the screw of the boss 61. Screw into the hole 61a. As a result, the camera mounting plate 6 is fixed on the mounting table 3.

  After that, one end of the front surface of the digital camera 22 is abutted against the abutting surface 72e-1 formed on the surface 72d-1 of the switching piece 72, and one side surface of the digital camera 22 is a projection formed on the surface 72d-1. It abuts against the contact surface 72f-1.

  At substantially the same time, the other end of the front surface of the digital camera 22 is abutted against the abutment surface 81 of the second positioning member 8.

  The digital camera 22 is positioned on the main plate 4 as described above. In this state, the camera fixing screw 63 attached to the camera mounting plate 6 is screwed into the tripod mounting screw hole of the digital camera 22.

  Next, the mounting device main ring 5 is fixed to the telescope 21 by the fixing screw 53. The eyepiece of the telescope 21 is accurately positioned with respect to the main plate 4 by the wearer main ring 5. Therefore, the optical axis of the eyepiece of the telescope 21 and the optical axis of the digital camera 22 coincide.

  As described above, according to this embodiment, the positioning of the digital camera 22 with respect to the main plate 4 can be easily performed.

  Further, since the digital camera 22 is fixed to the camera mounting plate 6 with the camera fixing screw 63 and the camera mounting plate 6 is further fixed to the mounting table 4 with the fixing screw 34, an external force is applied to the digital camera 22. Also, the load is distributed to the camera fixing screw 63 and the fixing screw 34. As a result, deformation of the bottom plate of the digital camera 22 can be suppressed.

  Furthermore, since the camera mounting plate 6 is more easily bent than the bottom plate of the digital camera 22, when the camera fixing screw 63 is screwed into the screw hole for attaching the tripod of the digital camera 22, the camera mounting plate 6 is bent and elastic force is applied. The convex portion 65 of the camera mounting plate 6 is in pressure contact with the bottom plate of the digital camera 22. As a result, the digital camera 22 can be firmly fixed to the camera mounting plate 6.

  In general, a plurality of protrusions are provided on the camera bottom plate, and the camera bottom plate is designed so that a gap is formed between the camera bottom plate and the camera bottom plate. If a gap is formed between the camera mounting plate 6 and the camera bottom plate using this, even if the camera mounting plate 6 is planar, deformation of the bottom plate due to the bending effect can be prevented.

  Further, since the release seat 11 and the sliding member 12 are provided on the release plate 9 and the shutter button is pressed by the sliding member 12, it is possible to prevent the shutter button from being damaged.

  4A and 4B show a camera bracket according to a second embodiment of the present invention, in which FIG. 4A is a front view, FIG. 4B is a cross-sectional view taken along line DD in FIG. c) is a side view, FIG. 5 is a switching shaft of the first positioning member of the camera bracket shown in FIG. 4, (a) is a front view, and (b) is EE in FIG. (a). FIG. 6 shows a switching piece of the first positioning member of the camera bracket shown in FIG. 4, FIG. 6 (a) is a front view, and FIG. 6 (b) is an FF in FIG. FIG. 7 shows a plate of the first positioning member of the camera bracket shown in FIG. 4, FIG. 7 (a) is a side view of the first plate, and FIG. 7 (b) is a side view of the second plate. (C) is a side view of the third plate, and (d) is a side view of the fourth plate.

  Portions common to the first embodiment are denoted by the same reference numerals and description thereof is omitted. Only the main differences will be described below.

  The second embodiment is different from the first embodiment in that the structure of the first positioning member 207 is different.

  As shown in FIGS. 4 to 6, the first positioning member 207 of the second embodiment includes a switching shaft 271, a switching piece (holding member) 272, first to fourth plates (abutting members) 273-1 to 273-4, It consists of

  The switching shaft 271 has a main shaft portion 271a and a flange portion 271b. A screw hole 271d is formed in the main shaft portion 271a. A knurled 271e is formed on the outer peripheral surface of the main shaft portion 271a. The flange portion 271b is coupled to one end portion of the main shaft portion 271a. A screw hole 271f is formed in the flange-shaped portion 271b. The switching shaft 271 is fixed to the main plate 4 by a fixing screw 73 that passes through the main plate 4 and is screwed into the screw hole 271d. A fixing screw 74 penetrating the main plate 4 is screwed into the screw hole 271f of the flange portion 271b. As a result, the switching shaft 271 is prevented from rotating. The tip of the fixing screw 74 protrudes from the screw hole 271f.

  The switching piece 272 has a cylindrical portion 272a and a seat portion 272b. The cylindrical portion 272a has four slits 272d-1 to 272d-4. The cylindrical portion 272a is formed with a central hole 272c that can accommodate the main shaft portion 271a of the switching shaft 271. A knurled groove 272i is formed at one end of the center hole 272c. The seat portion 272b is coupled to one end portion of the cylindrical portion 272a. A hole 272g is formed in the seat portion 272b.

  Abutting surfaces (surfaces) 273a-1 to 273a-4 and abutting surfaces (surfaces) 273b-1 to 273b-4 are formed on the plates 273-1 to 273-4, respectively. The abutting surfaces 273a-1 to 273a-4 are in contact with the front surfaces of the first to fourth digital digital cameras, respectively. The abutting surfaces 273b-1 to 273b-4 are in contact with the side surfaces of the first to fourth digital cameras, respectively. The knurled groove 272 i of the switching piece 272 receives the knurled 271 e of the switching shaft 271. Therefore, the switching piece 272 cannot rotate with the switching shaft 271 as the rotation axis. Instead, arbitrary plates 273-1 to 273-4 can be inserted into the slits 272 d-1 to 272 d-4 of the switching piece 272, respectively, and adjustment corresponding to the type of camera is possible. Thus, by changing the arrangement of the four plates 273-1 to 273-4 according to the type of the digital camera 22 arranged on the camera mounting plate 6, a plurality of types of digital cameras 22 with respect to the main plate 4 can be changed. Positioning can be performed.

  According to the second embodiment, the same effect as that of the first embodiment can be obtained.

  8A and 8B show a camera bracket according to a third embodiment of the present invention, in which FIG. 8A is a front view, FIG. 8B is a cross-sectional view taken along line GG in FIG. c) is a cross-sectional view taken along the line H-H in FIG. 9A, FIG. 9 shows a third positioning member of the camera bracket shown in FIG. 8, and FIG. The perspective view of the 3rd positioning member of this figure, The figure (b) is the perspective view of the 3rd positioning member in the state which abbreviate | omitted the camera mounting board in the same state as the figure (a), The figure (c) is camera mounting. The perspective view of the 3rd positioning member in the state where the board was lowered a little, The figure (d) is the perspective view of the 3rd positioning member in the state where the camera mounting board was made the lowest, The figure (e) is the figure (a). FIG. 11F is a sectional view taken along the line JJ in FIG. 10C, and FIG. 10G is a sectional view taken along the line KK in FIG. In the figure .

  The camera bracket 301 of the third embodiment includes a third positioning member 15.

  The third positioning member 15 includes a lower height adjustment plate 151 and an upper height adjustment plate 152, and the position of the camera lens in the height direction with respect to the opening of the ring-shaped portion 41 of the camera bracket 301 can be adjusted. ing.

  The lower height adjustment plate 151 includes mounting portions 151a and 151b, a coupling portion 151c, and spacer portions 151d and 151e. The mounting portions 151 a and 151 b are rotatably mounted on the small-diameter portion 33 of the platform 3. The coupling part 151c couples the mounting parts 151a and 151b. The spacer portion 151d faces the outer peripheral surface of the large-diameter portion 31 and is coupled to the mounting portion 151a and rotates together with the mounting portion 151a. The spacer portion 151d is formed with a notch 151f for avoiding contact with the fixing screw 34. The spacer portion 151e faces the outer peripheral surface of the large diameter portion 32, is coupled to the mounting portion 151b, and rotates together with the mounting portion 151b.

  The upper stage height adjustment plate 152 includes mounting portions 152a and 152b, a coupling portion 152c, and spacer portions 152d and 152e. The mounting portions 152a and 152b are rotatably mounted on the small diameter portion 33 of the platform 3. The coupling part 152c couples the mounting parts 152a and 152b. The spacer portion 152d is opposed to the outer peripheral surface of the large-diameter portion 31, is coupled to the mounting portion 152a, and rotates together with the mounting portion 152a. Further, the spacer portion 152d overlaps the spacer portion 151d. The spacer portion 152d is formed with a notch 152f for avoiding contact with the fixing screw 34. The spacer portion 152e faces the outer peripheral surface of the large diameter portion 32, is coupled to the mounting portion 152b, and rotates together with the mounting portion 152b. Further, the spacer portion 152e overlaps the spacer portion 151e.

  When the highest position of the digital camera 22 is desired, the lower height adjustment plate 151 and the upper height adjustment plate 152 are rotated, and the large-diameter portion 31 as shown in FIGS. 9A, 9B, and 9E. , 32 and the camera mounting plate 6 are provided with spacer portions 151d, 151e, 152d, 152e.

  When it is desired to lower the position of the digital camera 22 slightly, the lower height adjustment plate 151 is rotated, and as shown in FIGS. 9 (c) and 9 (f), between the large diameter portions 31 and 32 and the camera mounting plate 6 The spacer portions 151d and 151e are interposed between the spacer portions 151d and 151e.

  When it is desired to make the position of the digital camera 22 the lowest, as shown in FIGS. 9D and 9G, the spacers 151d, 151e, 152d, and 152e are separated from the camera mounting plate 6 and the camera mounting plate 6 is directly attached. It fixes on the large diameter parts 31 and 32.

  According to the third embodiment, the same effects as those of the first embodiment can be obtained, the digital camera can be positioned in the height direction with respect to the camera bracket, and the various digital positions with different lens positions can be obtained. Compatible with cameras.

  In the above-described embodiment, the digital camera 22 is fixed to the mounting table 3 using the camera mounting plate 6, but the digital camera 22 may be directly fixed to the mounting table 3.

FIG. 1 is a view showing a camera bracket according to a first embodiment of the present invention. FIG. 2 is a sectional view of the switching shaft of the first positioning member of the camera bracket shown in FIG. FIG. 3 is a view showing a switching piece of the first positioning member of the camera bracket shown in FIG. FIG. 4 is a view showing a camera bracket according to a second embodiment of the present invention. FIG. 5 is a view showing a switching shaft of the first positioning member of the camera bracket shown in FIG. FIG. 6 is a view showing a switching piece of the first positioning member of the camera bracket shown in FIG. FIG. 7 is a view showing a plate of the first positioning member of the camera bracket shown in FIG. FIG. 8 is a view showing a camera bracket according to a third embodiment of the present invention. FIG. 9 is a view showing a third positioning member of the camera bracket shown in FIG.

  1: Camera bracket, 3: Mounting base, 4: Main plate, 5: Mounter main ring, 6: Camera mounting plate, 7: First positioning member, 71a: Main shaft, 72: Switching piece (butting member), 72d -1 to 72d-4: surface, 72e-1 to 72e-4: abutting surface, 72f-1 to 72f-4: abutting surface, 8: second positioning member, 21: eyepiece (optical device), 22: digital camera (camera), 207: first positioning member, 272: switching piece (holding member), 272d-1 to 272d-4: slit, 273-1 to 273-4: plate (butting member), 273a -1 to 273a-4: abutting surface (surface), 273b-1 to 273b-4: abutting surface (surface), 15: third positioning member.

Claims (5)

A platform facing the bottom of the camera;
A main plate fixed to the platform so as to be substantially perpendicular to the bottom surface of the camera on the platform and facing the front surface of the camera on the platform;
An attachment main ring fixed to the main plate and fixing an optical device attached to the camera;
Positioning of the camera with respect to the main plate in a direction perpendicular to the front surface of the camera and in a direction perpendicular to the one side surface of the camera by contacting one end of the front surface of the camera and one side surface of the camera A first positioning member for
A camera bracket, comprising: a second positioning member that contacts the other end of the front surface of the camera and positions the camera with respect to the main plate in a direction orthogonal to the front surface of the camera.   The first positioning member includes a main shaft portion fixed to the main plate, and a protrusion formed on the main shaft portion and formed with at least two surfaces for abutting the front surface of the camera and the one side surface of the camera. The camera bracket according to claim 1, further comprising a contact member.   The first positioning member has a slit, and is inserted into the slit of the holding member fixed to the main plate, and at least for abutting the front surface of the camera and the one side surface of the camera. The camera bracket according to claim 1, further comprising an abutting member having two surfaces formed thereon.   The camera bracket according to claim 1, wherein the platform is substantially cylindrical, and the camera is placed on an outer peripheral surface of the platform. The camera mounting plate for mounting the camera is screwed to the outer peripheral surface of the mounting base, which is disposed substantially perpendicular to the main plate.
Positioning of the optical axis of the camera on the camera mounting plate in a direction perpendicular to the bottom surface of the camera is insertable / removable between the mounting table and the camera mounting plate. The camera bracket according to any one of claims 1 to 4, further comprising a third positioning member.

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