DE102009026208B4 - Cable drums for mobile television production units - Google Patents

Abstract

Cable drums for mobile television production units for transporting and winding and unwinding of transmission cables (9), each a rotatably mounted drum body (4) with side windows (5) and the drum body (4) cage-like protective surrounding and the cable drum on all sides outwardly limiting, cuboid , stackable frame (1) on which the drum body (4) is rotatably mounted within the outer frame boundary, characterized in that the frames (1) have a uniform pitch with respect to their height (H) and depth (T) and one to the full utilization of the cable receiving capacity of the drum body (4) matched to the respective cable dimensioning variable width (B), wherein for rotatably supporting the drum body (4) on one side of the frame (1) fixed bearing rollers (12) are provided, on which the Peripheral edge of a side window (5 ') supports, while one of the opposite NEN side plate (5 '') projecting bearing pin (14) engages in a bearing on the frame (1) bearing rail (15) formed bearing, and an exposed portion of the trunnion (14) an on the bearing ...

Description

The invention relates to cable drums for mobile television production units for transporting and winding and unwinding of transmission cables, a rotatably mounted drum body with side windows and a drum body cage-like protective surrounding and the cable drum on all sides outwardly limiting, cuboid, stackable frame on which the drum body within the outer frame boundary is rotatably mounted, include.

For mobile broadcasts, mobile production units (OB vans) are available whose cargo space intended for the transport of technical equipment is limited and should therefore be used as optimally as possible. A considerable amount of space in the hold of the transfer car have wound on cable drums, available in different lengths and thickness and provided with a sensitive connector connection transmission cable that must not be damaged during transport and handling on site. Due to the sometimes extremely different cable lengths in different television productions, the winding capacity of the cable drums is often not fully utilized and thus, as well as due to the insufficient stacking properties, the loading capacity of the transfer carriage is not fully utilized. Due to the consequent high space requirement, the use of larger transfer cars is required. Cable drums are difficult to handle, especially with regard to the sometimes required large cable lengths with regard to the winding and unwinding.

The DE 20 2006 000 001 U1 describes a cable drum for television cables with interchangeable plates for different types of connections. The cable drum comprises a cuboidal, stackable frame surrounding the drum body in a cage-like manner with means for rotatable mounting and for braking the drum. From the DE 197 08 654 A1 is a portable hose or cable drum with a rotatably mounted on a stand frame drum body with a winding device for a cable or the like. Known. This cable drum is equipped with a friction brake, which comprises a resiliently applied to the drum body brake element. One in the DE 32 16 955 A1 described device for winding cables is equipped with two bobbins and has a fastening device which includes the winding material with clamping action releasably. From the DE 39 02 268 A1 is a device for winding or unwinding of stranded Good by means of a rotatably mounted in a frame, provided with a four-pivoting rotary knob coil known. The frame comprises two parallel polygonal frame parts, wherein attached to each frame part guide rollers rotatably support the respective spool flange. The DE 40 05 223 A1 describes a cable drum with a mounted in a frame, side discs having drum core and a mounted on the frame and cooperating with a drum disc parking brake, while one of the DE 101 61 192 A1 known cable drum has a bracket with lock for correct winding and to avoid exceeding the winding volume.

The invention has the object of providing the cable drums for television transmission cable in such a way that the loading capacity of the transfer car is used to the maximum and a protected arrangement and a simple and safe handling of the cable or cable drums is guaranteed.

According to the invention the object is achieved with a trained according to the features of claim 1 cable drum system. Advantageous developments of the invention are the subject of the dependent claims.

The essence of the invention is that equipped with a rotatably mounted, limited by side discs drum body drums for mobile television production units surrounding the drum body cage-like and the cable drum outwardly bounding, formed of struts cuboid, stackable frame with respect to its height and depth uniform pitch and a variable width matched to the respective cable dimensioning, so that the holding capacity of the respective cable drum is used efficiently and, moreover, safe and space-saving stacking in the transfer truck is possible. Ultimately, the loading capacity of the transfer trolley can be optimally used and smaller OB vans can be used. For rotatable mounting of the drum body mounted on one side of the frame bearing rollers are provided, on which the peripheral edge of a side window is supported, while a projecting from the opposite side disc bearing pin engages a trained in a bearing rail of the frame bearing and an exposed portion of the journal a stockholm held, acting as Abrollbremse for the drum body baking brake element is assigned. The finely adjustable jaw brake allows easy unwinding of the cable without looping.

In a further embodiment of the invention, the jaw brake element is formed integrally and with a clamping slot and for adjusting the braking effect when unrolling a Transmission cable clamped by means of a clamping screw on the journal, the jaw brake element is held loose and thus floating on the bearing spar.

According to a further important feature of the invention designed as a hollow cylinder drum body in the region of the supported on the bearing rollers side window, that is on the functional side of the cable drum, frontally open. In the interior of the drum body, a clamping device for externally protected and fixed positioning of a connected to the transmission cable plug is attached. In this side window, a recess is formed to insert the cable end with the plug from the outside of the drum body in the interior space and secure there.

The drum body may also be extended beyond the outer surface of the side window on the functional side. At the open end of this section, retaining tabs for holding an end portion of the transmission cable may be attached to the outside of the drum body.

The operation of the drum body when winding the transmission cable is carried out by means of a mounted on a retaining tab or directly on the side window drum knob, which is pivotable from a horizontal latched operating position in an approximately parallel to the side wall extending position and then does not protrude beyond the outer surface of the frame.

The bearing rollers on which the lying on the function side side window is supported on stiffening of the frame striving bearing pin, wherein arranged in a further embodiment of the invention between the bearing rollers and the stiffening brush rollers or rollers of a similar material with a larger diameter than the bearing rollers are. This minimizes the risk of injury in this area and, moreover, prevents a cable loop from getting into the area free on the functional side between the side window or the bearing rollers and the frame.

Provided on the longitudinal side of the frame of the cable drum stiffening plates are dimensioned so that the bearing and brush rollers blinded and thus a secure cable management is guaranteed and injury hazards are excluded.

In a further embodiment of the invention, the arranged in a stack consisting of two or more cable drums lower cable drums mounted on the underside of the frame wheels. On the underside of the other cable drums, small feet can be attached, which engage in the frame of an underlying cable drum and prevent slippage of the stacked cable drums. In this way, the cable drums can be easily transported in the stack.

In a further embodiment of the invention is in the upper region of the frame, in the longitudinal direction of the drum, a plug plate pivotally or removably mounted to protect the fully wound drum at the cable end connector from falling down and the associated damage.

An embodiment of the invention will be explained in more detail with reference to the drawing. Show it:

1 a perspective view of a cable drum for television transmission cable;

2 a front view of the cable drum with Abrollbremse;

3 a rear view (FunktionsseiteL) of the cable drum with drum knob and connector protection; and

4 a side view of the cable drum (partially in section) with tether.

The cable drum comprises a cuboidal frame designed as an aluminum welded construction 1 made up of four vertical struts 2 and eight horizontal struts 3 consists of a cage and a drum body 4 with side windows attached to both ends 5 receives. The frame 1 is dimensioned so that the cable drum through the struts 2 . 3 is limited to the outside and the drum body 4 including all associated components and the coiled transmission cable not over the frame 1 sticks out. In the embodiment shown in the drawing are at the lower ends of the vertical struts 3 in a four-wheeled and with a parking brake 6 equipped roll holder 7 mounted rollers 8th attached, so that the cable drum can be easily transported and can be securely locked in the transfer truck. The roll holder 7 with the rollers 8th can also be omitted to two or more cable drums or frames 1 in a transfer truck stacked on top of each other or stacked cable drums outside the transfer carriage on the with rollers 8th to be able to transport equipped lower cable drum. Not with casters 8th provided framework 1 can at its lower horizontal struts 3 small feet may be attached to the stacked cable drums in between the top engage horizontally struts located space and prevent slippage of stacked cable drums during transport. The space-saving stackability of the cable drums is ensured by the fact that the height H and the depth T of the frame 1 a certain uniform pitch, here for example 500 times 500 mm, and has only the width B of the frame 1 can be different. The width B of the frame 1 is on the length of the drum body 4 tuned, in turn, according to the length and thickness of the drum body 4 wound transmission cable 9 directed, in such a way that the drum body 4 always close to the edge of the side windows 5 wound with the cable material and the space between the side windows is substantially filled. The outer diameter of the drum body 4 is chosen so large that the cable is not damaged by the winding process. Due to the variable width of the cable drum according to the cable dimensions, the capacity of the cable drum is fully utilized and the storage space available in the transfer truck is optimally utilized. Despite the different width B of the frame 1 , is due to the height and depth of the frame 1 A uniform grid spacing ensures space-saving and secure stacking of the cable drums.

The frame 1 can through in the angles between abutting struts 2 . 3 welded stiffening sheets 10 be stiffened. At these stiffening plates 10 are - here only on one side of the cable drum - on bearing bolts 11 rotatably mounted bearing rollers 12 mounted on the outer peripheral surfaces of the outer edge of a - in the drawing according to 1 and 4 . 5 the left - side window 5 ' is supported. To avoid accidents are on the bearing pin 11 still brush rolls 13 (or provided with another soft material protection rollers), which prevent the fingers of a user get into this area or a cable loop when winding or unwinding in between the bearing rollers 12 and the vertical struts 2 lying area.

The same purpose is served by the frame 1 attached, here concave curved stiffening plates 10 , which are dimensioned so that they are the bearing rollers 12 and the brush rolls 13 blind to the outside.

On the outside of the other - right in the drawing - side window 5 '' is a journal 14 appropriate. The journal 14 engages in a roller bearing (not shown), which in a between two vertical struts 2 welded bearing spar 15 is trained. At the stockholm 15 a parking brake is mounted which has a knob connected to a threaded bolt (not shown) 16 includes. The front of the in an internal thread of the bearing rail 15 adjustable threaded bolt can be turned by turning the knob 16 with the outer surface of the side window 5 '' be brought into contact and the drum body 4 determine. In addition, at the stockholm 15 a roll-off brake 17 appropriate. The roll-off brake 17 consists of a floating, one-piece jaw brake element 18 on one side with play by means of fastening screws 21 and thus easily movable (floating) on the bearing spar 15 is held and the one about the stockholm 15 protruding portion of the journal 14 almost completely included. The one-piece jaw brake element 18 has at the opposite side of the fastening side a clamping slot 19 on, whose width for adjusting the braking effect by means of a jaw brake element 18 in the area of the clamping slot 19 powerful clamping screw 20 can be adjusted. When unrolling the transmission cable 9 can the drum body 4 by the very finely adjustable jaw brake element 18 be slowed down to the desired extent, so that a certain rolling resistance is created and thus a uniform controlled unrolling (without looping) is guaranteed.

The on the rollers 8th supported - in the drawing left - side window 5 ' on the functional side of the cable drum is at a small distance from the end of the hollow body formed as a drum body 4 attached. At the edge of the drum body open at this end 5 are radially abstrebenden retaining tabs 22 intended. Through one in the side window 5 ' trained recess 23 becomes an end portion of the transmission cable 9 with the plug 24 led out to the outside via the side window 5 ' protruding portion of the drum body 4 wrapped and behind the retaining tabs 22 held. In the side window 5 ' - and also in the side window 5 '' - Can also reduce weight several recesses 23 be provided. The sensitive and expensive, possibly even with a protective sleeve 25 protected plug 24 is located inside the drum body 4 and is there in one on the inner wall of the drum body 4 attached, by means of an adjusting wheel 29 adjustable clamping device 26 held and can be connected in this mechanically and weather protected position via a patch cord (not shown) with a patch panel. In one of the clamping device 26 dissolved position (not shown), the plug 24 also be connected directly. With the reference number 27 is called a plug cap. In the in 4 Side view shown is still an existing elastic material tether 30 shown in recesses (not shown) at the top of the side windows 5 is attached or hooked and the other end of the cable with the attached plug (not shown) in the wound position on the drum body 4 fixed.

As 3 shows is on one of the retaining tabs 22 still a pivotable, here in the vertical, inwardly pivoted position illustrated drum knob 28 for rotating the drum body 4 when rolling up the cable 9 appropriate. In the outwardly pivoted, horizontal use position, the handle locks 28 automatically.

The drum body 4 and all parts connected to it, namely side windows 5 , Holding tabs 22 , Clamping device 26 , two-sided storage and pivoted-in handle 28 on the functional side of the cable drum and the roll-off brake and the parking brake on the opposite side and finally the peripheral edges of the side windows 5 with the tether fastened there 30 are located inside the outer surfaces of the struts 2 . 3 of the frame 1 , So that the cable drums can be strung together directly to save space and stacked on top of each other, and without the drum body together with attachments and wound up to the disk peripheral edge transmission cables and plugs can influence each other. Due to the variable width of the cable drums adapted to the cable dimensioning, the winding capacity can be fully utilized and thus space can be saved. The special storage of the drum in the frame in conjunction with the braking and protection devices ease of use and reliability of the cable drum are guaranteed.

LIST OF REFERENCE NUMBERS

1

frame

2

vertical struts of 1

3

horizontal struts of 1

4

drum body

5

Side windows of 4 ( 5 ' . 5 '' )

6

Parking brake of 8th

7

Roll holder from 8th

8th

Casters of 1

9

transmission cable

10

Reinforcing sheet from 1

11

Bearing pin of 12 . 13

12

bearing roller

13

brush roll

14

Bearing on 5 ''

15

Stockholm on 1

16

Rotary knob (parking brake for 4 )

17

Roll brake for 4

18

Jaw brake element of 17

19

Clamping slot of 18

20

Clamping screw of 18

21

Fixing screws for 18

22

Holding tabs on 4

23

Recess in 5 '

24

Plug of 9

25

Protective sleeve for 24

26

Clamping device for 24

27

Protective cap for 24

28

Drum rotary handle

29

Thumbwheel for 26

30

safety belt

H

Height of 1 = const.

T

Depth of 1 = const.

B

Width of 1 = variable

Claims (13)

Cable drums for mobile television production units for transporting and winding and unwinding transmission cables ( 9 ), each having a rotatable mounted drum body ( 4 ) with side windows ( 5 ) and the drum body ( 4 ) cage-like protective surrounding and the cable drum on all sides outwardly bounding, cuboid, stackable frame ( 1 ), on which the drum body ( 4 ) is rotatably mounted within the outer frame boundary, characterized in that the frames ( 1 ) with respect to their height (H) and depth (T) uniform grid size and a full utilization of the cable receiving capacity of the drum body ( 4 ) have variable width (B) matched to the respective cable dimensioning, wherein for the rotatable mounting of the drum body ( 4 ) on one side of the frame ( 1 ) fixed bearing rollers ( 12 ) are provided, on which the peripheral edge of a side window ( 5 ' ), while one from the opposite side window ( 5 '' ) projecting journal ( 14 ) one in one on the frame ( 1 ) fixed bearing rail ( 15 ) trained bearing passes through, and an exposed portion of the journal ( 14 ) on the stockholm ( 15 ), as Abrollbremse ( 17 ) for the drum body ( 4 ) acting jaw brake element ( 18 ) assigned. Cable drums according to claim 1, characterized in that the jaw brake element ( 18 ) in one piece and with a clamping slot ( 19 ) and for adjusting the braking effect when unrolling a transmission cable ( 9 ) by means of a clamping screw ( 20 ) on the journal ( 14 ) is clamped. Cable drums according to claim 2, characterized in that the jaw brake element ( 18 ) on the storage bar ( 15 ) is kept loose and thus floating. Cable drums according to claim 2, characterized in that the drum body formed as a hollow cylinder ( 4 ) in the area of the bearing rollers ( 12 ) supported side window ( 5 ' ) at the front is open and inside the drum body ( 4 ) a clamping device ( 26 ) for externally protected and fixed positioning of one with the transmission cable ( 9 ) connected plug ( 24 ) is mounted, wherein in the side window ( 5 ' ) at least one recess ( 23 ) for inserting the plug into the drum body ( 4 ) and designed for weight reduction. Cable drums according to claim 4, characterized by a over the outer surface of the side window ( 5 ' ) protruding portion of the drum body ( 4 ) with attached at the open end retaining tabs ( 22 ) for holding an end portion of the transmission cable ( 9 ) on the outside of the drum body ( 4 ). Cable drums according to claim 5, characterized in that on a retaining tab ( 22 ) or directly on the side window ( 5 ' ) a drum handle ( 28 ), which is approximately parallel to the side wall ( 5 ' ) extending position in a horizontal, latched operating position is pivotable. Cable drums according to one of the preceding claims, characterized in that the frame ( 1 ) of horizontal and vertical struts welded together ( 2 . 3 ) and partially arranged in the corner regions stiffening plates ( 10 ), wherein the horizontal struts ( 3 ) are designed to improve the wearing comfort around. Cable drums according to claim 7, characterized in that the bearing rollers ( 12 ) on the stiffening plates ( 10 ) abstrebenden bearing pin ( 11 ) and between the rollers ( 12 ) and the stiffening plates ( 10 ) Brush rolls ( 13 ) are arranged. Cable drums according to claim 1, characterized in that on the bearing spar ( 15 ) a parking brake, consisting of a with a knob ( 16 ), to the adjacent side window ( 5 '') adjustable threaded bolt is attached. Cable drums according to claim 1, characterized in that in a stack consisting of two or more cable drums lower cable drums at the bottom of the frame ( 1 ) mounted rollers ( 8th ) with these associated parking brake ( 6 ) exhibit. Cable drums according to claim 1, characterized in that on the underside of the frame ( 1 ) small feet are attached, which prevent slipping of the stacked cable drums. Cable drums according to claim 1, characterized in that at the upper edge of the two side windows ( 5 ' . 5 '' ) Recesses for bracing a wound transmission cable ( 9 ) fixing tether ( 30 ) are formed. Cable drums according to one of the preceding claims, characterized in that the drum body ( 4 ) by a in a longitudinal window of the frame ( 1 ) in the upper part of the removable or pivotally mounted connector plate is blinded to prevent falling of the cable end located on the wound cable end.

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