JP2006333223A - Device for operating television lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for operating a television lens, which can connect one zoom demand to two types of pan bars in a zoom demand for operating a zoom lens of the television lens. <P>SOLUTION: An attachment member 50 is constituted of a bar-shaped connection part 52 to be inserted into a connection part 224 of a female pan bar 222 and a bar-shaped connection part 54 to be inserted into a connection part 128 of a female zoom demand 126. When the zoom demand 126 is connected to the pan bar 222, first, the connection part 54 of the attachment member 50 is inserted into the connection part 128 of the zoom demand 126, and a clamp part 44 fixes the connection part 128 of the zoom demand 126 to the connection part 54 of the attachment member 50. Then, the connection part 52 of the attachment member 50 is inserted into the connection part 224 of the pan bar 222, and the clamp part 44 fixes the connection part 224 of the pan bar 222 to the connection part 52 of the attachment member 50. Consequently, the female zoom demand 126 can be connected to the female pan bar 222. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an operation device for a television lens, and more particularly to an operation device for a television lens such as a zoom demand which is connected to an operation rod of a pan head and operates a zoom lens.

  An EFP lens device or an ENG lens device used for a broadcast television camera is used while being supported by a tripod or a pedestal head. In addition, as disclosed in Patent Document 1 and the like, these lens devices perform zooming by operating a zoom demand connected to one pan rod (operation rod) of the pan head, and the other. Focusing is performed by operating a focus demand connected to a bread stick.

By the way, some television lens operating devices such as zoom demand and focus demand are connected to a pan bar via a mounting clamp member as in Patent Document 1, but particularly in zoom demand, a pan bar connecting portion. When the projection is a male shape with a convex shape, the connecting portion connects a female zoom demand with a concave shape by concavity and convexity fitting, and when the connection portion of the bread bar is a concave female shape, the connection portion is convex. Some male zoom demands are connected by concave-convex fitting.
JP 2000-89084 A

  As described above, the conventional television lens operating device for connecting the zoom demand to the pan bar by concave-convex fitting is similar to the male type and the female type connecting part of the two types of pan bars. The zoom demand cannot be connected to the pan bar unless two types of female zoom demands are prepared in advance. Therefore, the conventional television lens operating device has a problem that two kinds of expensive zoom demands must be prepared.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a television lens operating device capable of connecting one operating device to two types of operating rods.

  In order to achieve the above object, the invention according to claim 1 is an operating device that is connected to an operating rod of a pan head and operates a television lens placed on the pan head, wherein the connecting portion is convex. Connected to the male operating rod having a concave shape, the connecting portion is attached to the male operating rod having a concave shape, or connected to the female operating rod having a concave shape. Among the operation devices, the device has the female operation device, and has a rod-shaped attachment member for attaching the female operation device to the female operation rod.

  According to the first aspect of the present invention, when only the female operation device is provided, the female operation device is connected to the operation rod by concave-convex fitting without problems when the operation rod is male. In the case where the operating rod is female, the female operating device can be coupled to the female operating rod via a rod-shaped attachment member. Therefore, in the case where only the female operation device is provided, if a rod-shaped attachment member is prepared, the female operation device can be connected to two types of operation rods.

  A second aspect of the present invention is characterized in that, in the first aspect, the attachment member is provided so as to be freely inserted into and withdrawn from the female operating device.

  According to the second aspect of the present invention, the attachment member is provided in the female operation device so that the attachment member can be taken in and out, and the attachment member protrudes from the female operation device when in use. As described above, since the female operating device and the attachment member are integrally provided, it is possible to save the trouble of carrying only the attachment member, and the handling becomes easy.

  In order to achieve the object, the invention according to claim 3 is an operating device that is connected to an operating rod of a pan head and operates a television lens placed on the pan head, wherein the connecting portion is convex. Connected to the male operating rod having a concave shape, the connecting portion is attached to the male operating rod having a concave shape, or connected to the female operating rod having a concave shape. Among the operating devices, the male operating device is provided, and a cylindrical attachment member for attaching the male operating device to the male operating rod is provided.

  According to the third aspect of the present invention, in the case where only the male operating device is provided, when the operating rod is a female type, the male operating device is connected to the operating rod by uneven fitting without any problem. In the case where the operating rod is male, the male operating device can be connected to the male operating rod via a cylindrical attachment member. Therefore, when only the male operating device is provided, the male operating device can be connected to two types of operating rods by preparing a cylindrical attachment member.

  As described above, according to the television lens operating device of the present invention, the rod-shaped attachment member for connecting the female operating device to the female pan rod, or the male operating device is connected to the male pan. Since the cylindrical attachment member for connecting to the rod is prepared, one operating device can be connected to two types of operating rods.

  A preferred embodiment of a television lens operating device according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a television camera 10 to which the television lens operating device according to the embodiment is applied.

  A television camera 10 shown in FIG. 1 includes a lens device 12 and a camera main body 14, and is supported by a pan head 18 installed on the top of a pedestal 16 so as to be movable in a pan direction and a tilt direction. Two pan bars (operating bars) 22 and 23, which are operated by a cameraman with both hands, are extended on the pan head 18 in a rearward direction. A zoom demand (television lens operating device) 26 connected to the lens device 12 via a cable 25 is attached to the end of the pan bar 22, and a cable 27 to the lens device 12 is connected to the end of the pan bar 23. The focus demand 28 connected via the is attached.

  The zoom demand 26 is provided with a thumb ring 30 that can be rotated in both directions from a reference position. When the thumb ring 30 is rotated by the cameraman, a zoom command signal corresponding to the operation amount from the reference position, that is, the rotation direction and the rotation amount is given from the zoom demand 26 to the lens device 12, and the zoom lens of the lens device 12 is operated. Move to wide side or tele side. Thereby, zooming is executed.

  On the other hand, an operation knob 34 is rotatably provided on the main body 32 of the focus demand 28 connected to the pan bar 23. When the operation knob 34 is rotated by a cameraman, a focus command signal corresponding to the rotation direction and amount of rotation is given from the focus demand 28 to the lens device 12, and the focus lens of the lens device 12 is moved to the near side or the infinity side. Moved. Thereby, focusing is performed by manual operation.

  By the way, for connecting the pan bar 22 and the zoom demand 26, two types of connecting structures shown in FIGS. 2 and 3 are conventionally employed. FIG. 2 shows a connection structure of the female zoom demand 126 to the male bread stick 122, and FIG. 3 shows a connection structure of the male zoom demand 226 to the female bread stick 222. That is, the connection structure between the pan bars 122 and 222 and the zoom demands 126 and 226 is mainly a male / female uneven fitting.

  More specifically, as shown in FIG. 2, the connecting portion 124 of the male bread rod 122 is formed in a rod shape (convex shape), and the female zoom demand 126 is inserted so that the connecting portion 124 of the pan rod 122 is inserted. The connecting portion 128 is formed in a cylindrical shape (concave shape). Further, as shown in FIG. 3, the connecting portion 224 of the female bread stick 222 is formed in a cylindrical shape (concave), and the male zoom demand 226 is connected so as to be inserted into the connecting portion 224 of the pan stick 222. The part 228 is formed in a rod shape (convex shape).

  2 and FIG. 3, it is impossible to connect the male zoom demand 226 of FIG. 3 to the male bread stick 122 of FIG. 2, and the female bread stick of FIG. It is impossible to connect the female zoom demand 126 of FIG.

  Reference numeral 40 denotes a grip part for the cameraman to hold the zoom demands 126 and 226. In addition, the connecting portion 128 of the female zoom demand 126 and the connecting portion 224 of the female pan rod 222 are provided with a clamp portion 44 having a known structure in which a slit 42 is formed. By rotating the screw portion 46 of the clamp portion 44 with the pin 48 and narrowing the gap of the slit 42, the clamp portion 44 is connected to the other side (the connection portion 124 of the bread bar 122, the connection portion of the zoom demand 226). 228), the connecting part 124 of the pan bar 122 and the connecting part 128 of the zoom demand 126 can be fixed, and the connecting part 224 of the pan bar 222 and the connecting part 228 of the zoom demand 226 can be fixed. .

  4 shows an attachment member 50 for connecting the female zoom demand 126 shown in FIG. 2 to the female bread stick 222 shown in FIG. 3, and FIG. 5 shows the male die shown in FIG. An attachment member 60 for connecting the male zoom demand 226 shown in FIG.

  The attachment member 50 shown in FIG. 4 includes a rod-shaped coupling portion 52 that is inserted into the coupling portion 224 of the female bread stick 222, and a rod-shaped coupling portion 54 that is inserted into the coupling portion 128 of the female zoom demand 126. The connecting portion 52 and the connecting portion 54 are integrally and coaxially provided.

  When connecting the zoom demand 126 to the pan bar 222, first, the connecting portion 54 of the attachment member 50 is inserted into the connecting portion 128 of the zoom demand 126, and the connecting portion 128 of the zoom demand 126 is clamped by the clamp portion 44 of the zoom demand 126. And the connecting portion 54 of the attachment member 50 are fixed. Next, the connecting part 52 of the attachment member 50 is inserted into the connecting part 224 of the bread bar 222, and the connecting part 224 of the bread bar 222 and the connecting part 52 of the attachment member 50 are fixed by the clamp part 44 of the bread bar 222. As a result, the female zoom demand 126 can be connected to the female bread stick 222.

  This aspect is effective when only the female zoom demand 126 is provided. That is, when the pan rod 122 is male, the zoom demand 126 can be connected to the pan rod 122 without any problem as shown in FIG. 2, and when the pan rod 222 is female, the rod-like attachment member 50 is attached. The female zoom demand 126 can be connected to the female bread stick 222 via the connector. Therefore, when only the female zoom demand 126 is provided, the female zoom demand 126 can be connected to the pan rod 122 and the pan rod 222 by preparing the attachment member 50.

  The attachment member 60 shown in FIG. 5 includes a cylindrical connecting portion 62 into which the connecting portion 124 of the male bread stick 122 is inserted and a cylindrical connecting portion into which the connecting portion 228 of the male zoom demand 226 is inserted. 64. The connecting portion 62 and the connecting portion 64 are provided integrally and coaxially. Further, the clamp portion 44 having the above-described configuration is provided at the end of the connecting portion 62. Further, a male screw portion 68 having a slit 66 is formed at the end of the connecting portion 64, and the male screw portion 68 is contracted by being screwed into the male screw portion 68 toward the end of the male screw portion 68. A diameter nut 70 is screwed.

  When connecting the zoom demand 226 to the pan bar 122, first, the connecting portion 228 of the zoom demand 226 is inserted into the connecting portion 64 of the attachment member 60, and the nut 70 of the attachment member 60 is directed toward the end of the male screw portion 68. Then, the male screw portion 68 is reduced in diameter. Thereby, the connection part 228 of the zoom demand 226 and the connection part 64 of the attachment member 60 are fixed. Next, the connecting part 124 of the bread bar 122 is inserted into the connecting part 62 of the attachment member 60, and the connecting part 124 of the bread bar 122 and the connecting part 62 of the attachment member 60 are fixed by the clamp part 44 of the attachment member 60. As a result, the male zoom demand 226 can be connected to the male bread stick 122.

  This aspect is effective when only the male zoom demand 226 is provided. That is, when the pan bar 222 is female, the zoom demand 226 can be connected to the pan bar 222 without any problem as shown in FIG. 3, and when the pan bar 122 is female, the tubular attachment member 60 is interposed. Thus, the male zoom demand 226 can be connected to the male pan rod 122. Therefore, when only the male zoom demand 226 is provided, the male zoom demand 226 can be connected to the pan bar 122 and the pan bar 222 by preparing the attachment member 60.

  FIG. 6 shows an attachment member 50 that is provided in a connecting portion 128 of the zoom demand 126 so as to be freely inserted and removed.

  The attachment member 50 is provided so that the connecting portion 54 is guided by the connecting portion 128 and can be freely inserted and removed, and a set screw 72 protruding from the connecting portion 54 is inserted into a long hole 74 formed in the axial direction of the connecting portion 128. It is put in and out by sliding along. Further, by attaching the set screw 72 to the connecting portion 54 at both ends of the long hole 74, the attachment member 52 is attached to a position where the connecting portion 52 of the attachment member 50 protrudes from the connecting portion 128 and a position stored in the connecting portion 128. 50 can be held. Further, when the connecting portion 52 of the attachment member 50 is housed in the connecting portion 128, the connecting portion 124 of the bread bar 122 can be inserted into the connecting portion 128.

  According to the zoom demand 126 configured as described above, when the pan bar 222 is the female type shown in FIG. 4, the connecting part 52 of the attachment member 50 protrudes from the connecting part 128 of the zoom demand 126 so that the pan bar 222 Connect to When the bread stick 122 is the male type shown in FIG. 5, the connecting portion 52 of the attachment member 50 is housed in the connecting portion 128 of the zoom demand 126 and the connecting portion 128 and the connecting portion 124 of the pan stick 122 are connected. To do.

  Thus, by providing the zoom demand 126 and the attachment member 50 integrally, the trouble of carrying only the attachment member 50 can be saved, and handling becomes easy. Further, the attachment member 60 may be provided in and out of the connecting portion 228 of the zoom demand 226.

The perspective view of the television camera to which the television lens operating device of the embodiment is applied Explanatory drawing which showed an example of the connection structure of a zoom demand and a bread stick Explanatory drawing which showed an example of the connection structure of a zoom demand and a bread stick Explanatory drawing which connects a zoom demand and a bread stick through an attachment member Explanatory drawing which connects a zoom demand and a bread stick through an attachment member Enlarged view of the main part where attachment members can be inserted and removed freely in the zoom demand

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Television camera, 12 ... Lens apparatus, 14 ... Camera body, 22, 122, 222 ... Pan stick, 26, 126, 226 ... Zoom demand, 28 ... Focus demand, 30 ... Thumb ring, 44 ... Clamp part

Claims (3)

An operating device that is connected to an operating rod of a pan head and operates a television lens placed on the pan head,
The connecting part is attached to the convex male operating rod, the connecting part is a concave female operating device, or the connecting part is attached to the concave female operating rod, the connecting part is convex Of the male operating device, the female operating device,
An operating device for a television lens, comprising a rod-shaped attachment member for attaching the female operating device to the female operating rod.   2. The television lens operating device according to claim 1, wherein the attachment member is provided so as to be freely inserted into and retracted from the female operating device. An operating device that is connected to an operating rod of a pan head and operates a television lens placed on the pan head,
The connecting part is attached to the convex male operating rod, the connecting part is a concave female operating device, or the connecting part is attached to the concave female operating rod, the connecting part is convex Among the male operating devices, the male operating device is included,
A television lens operating device comprising a cylindrical attachment member for attaching the male operating device to the male operating rod.

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