WO2001042706A1 - Improved tripod, in particular for optical and photographic use - Google Patents

Improved tripod, in particular for optical and photographic use Download PDF

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Publication number
WO2001042706A1
WO2001042706A1 PCT/EP2000/004129 EP0004129W WO0142706A1 WO 2001042706 A1 WO2001042706 A1 WO 2001042706A1 EP 0004129 W EP0004129 W EP 0004129W WO 0142706 A1 WO0142706 A1 WO 0142706A1
Authority
WO
WIPO (PCT)
Prior art keywords
spider
column
support
main axis
tripod according
Prior art date
Application number
PCT/EP2000/004129
Other languages
French (fr)
Inventor
Paolo Speggiorin
Original Assignee
Lino Manfrotto + Co. S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lino Manfrotto + Co. S.P.A. filed Critical Lino Manfrotto + Co. S.P.A.
Priority to US10/148,729 priority Critical patent/US6824319B1/en
Priority to DE60024310T priority patent/DE60024310T2/en
Priority to JP2001543953A priority patent/JP4490021B2/en
Priority to EP00931144A priority patent/EP1236007B1/en
Publication of WO2001042706A1 publication Critical patent/WO2001042706A1/en
Priority to HK03107086A priority patent/HK1054778A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32—Undercarriages for supports with three or more telescoping legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/025—Locking means for translational movement
    • F16M2200/027—Locking means for translational movement by friction

Definitions

  • the present invention relates to an improved tripod, in particular for optical or photographic use, according to the preamble of the main claim 1.
  • tripod is meant to indicate supports with three or more legs and therefore no limitation is to be considered implicitly or explicitly attributable to the terminology employed with regard to the number of legs .
  • tripods of the type indicated are used for supporting optical or photographic equipment in a stable manner at a predetermined distance and height with respect to the subject photographed.
  • a support of this type is known from the description of Patent Application No. PD98A000096 of the same Applicant.
  • This describes a tripod comprising a spider for articulation of the legs and a support mounted in the spider with a first seating coaxial with the main axis of the tripod, and a second seating with axis substantially perpendicular to the first seating so that the column of the tripod can be received alternatively and removably in the first and the second seating .
  • this tripod allows placements of the column, and consequently of the photographic equipment, very close up, in so far as the column can be mounted at right-angles with respect to the main axis of the tripod, yet said placements are limited to only two directions, perpendicular to each other, obtainable by mounting the column in one or other of the seatings provided on the spider. Disclosure of the Invention
  • the invention proposes as its principal aim that of improving the versatility of the tripods of known type by increasing the number of positions and placements allowed for the column. Within the scope of said aim, the invention likewise proposes to allow the adjustment of the position of the column easily and independently of the adjustment of the position of the legs of the tripod.
  • Figure 1 is a perspective view of a tripod produced according to the present invention
  • Figure 2 is a plan view of the tripod in Figure 1
  • Figure 3 is a view in section along the line III- III in Figure 2 .
  • Figure 4 is a view in partial section along the line
  • the reference 1 indicates as a whole a tripod produced in accordance with the present invention and including a spider 2 having a main axis X in which there converge and are articulated three legs all indicated by 3, articulated on respective pins 4.
  • Each leg is produced with a telescopic structure having two or more extensions, the relative positioning of which is adjustable by means of clamps 5.
  • the angular position of each leg 3 about the corresponding pin 4 is further adjustable by means of a lever adjusting device 6 of a type which is conventional per se .
  • the support 10 comprises a first and a second part respectively rigidly connectable to the spider 2 and to a column 11, the latter being provided at one end with a connection 12, for example a screw connection, for attaching an item of photographic equipment or other equipment thereto .
  • the first part comprises a clamping member 13 in which is defined a cylindrical seating 14 coaxial with the axis X and intended to receive the pin 9.
  • the seating 14 is interrupted circumferentially by a notch 15 at which there extend, towards the outside, two juxtaposed cheeks 16a, b.
  • the member 13 is elastically deformable and in particular is radially contractile transversely to the axis X.
  • the member 13 is clamped on the pin 9, so that it is rigidly connected to the latter by means of a screw clamping device indicated as a whole by 17.
  • Said device comprises a pin arrangement 18 of axis Y perpendicular to the main axis X, passing through the cheeks 16a, b, and having a head 18a and an opposed screw-threaded portion 18b screwed into an operating knob 19.
  • the reference 20 indicates a bearing, preferably of the rolling ball type, interposed between the knob 19 and the member 13, which serves to reduce the forces required by the user when actuating the knob 19.
  • the second part of the support 10 comprises a split sleeve arrangement 21 which is slipped onto the column 11.
  • the column 11 is rotatably and slidably received in the sleeve arrangement 21 and is clamped on the latter by means of a tie-rod 22, mounted on the sleeve and connected by one of its axial ends to a lever 23.
  • Said lever 23 is provided with a protuberance 24 interfering with the sleeve arrangement 21 to clamp the latter against the column 11 as a result of closing actuation of the lever on the sleeve itself .
  • a coupling with frontal teeth including a first and a second coupling member 27a, b that can be mutually coupled in the direction of the axis Y.
  • the coupling members 27a, b comprise respective toothed crowns 28a, b extending coaxially with the axis Y, projecting respectively from the surface 25a of the appendage 25 and from the surface of the clamping member 13 facing the latter.
  • the toothed portions 28a, b are shaped with a profile such as to block the relative rotation between the first and the second part of the support, about the axis Y, when the coupling members 27a, b are mutually coupled.
  • the coupling members 27a, b are axially clamped against each other by the screwing of the knob 19 on the screw- threaded portion of the pin 18.
  • the toothed crowns 28a, b are further capable of being axially coupled with a preselected angular positioning with respect to each other about the axis Y, and consequently the sleeve arrangement 21, and therefore the column 11, can be oriented and locked with respect to the support 10, in a preselected operating position in which the column 11 is inclined with respect to the main axis X by a preselected angulation.
  • the number of relative angular positions between the column 11 and the spider 2 is determined by the number and the angular pitch of the teeth of the crowns 28a, b.
  • the invention thus achieves the aims proposed by obtaining numerous advantages with respect to the known solutions.
  • a greater versatility is obtained in the placement of the column with respect to the spider, with an increase in the number of positions, comprised and capable of being selected between two opposed operating positions in which the column is respectively disposed parallel and perpendicular to the main axis of the spider.
  • the invention advantageously makes it possible to obtain easy and rapid adjustment of the positioning of the column in addition to the fact that said adjustment is independent of the adjustment of the position of the legs of the tripod. This allows the user to act with greater rapidity and security in the placement of items of photographic equipment, which are often rather heavy, even in the case of photographic shots which are not particularly convenient or easy.

Abstract

An improved tripod is described, comprising a spider (2) having a main axis (X), at least three legs (3) converging in the spider (2) and articulated thereupon, and a support (10) in the spider (2) for supporting a column (11), in which are provided, in the support (10), means for placement of the column (11) for removably locking the latter in at least two positions in which the axis of the column is angularly inclined with respect to the main axis (X) of the spider.

Description

Improved tripod, in particular for optical and photographic use
Technical Field
The present invention relates to an improved tripod, in particular for optical or photographic use, according to the preamble of the main claim 1.
In the following context, the term "tripod" is meant to indicate supports with three or more legs and therefore no limitation is to be considered implicitly or explicitly attributable to the terminology employed with regard to the number of legs . Background art
It is well known that tripods of the type indicated are used for supporting optical or photographic equipment in a stable manner at a predetermined distance and height with respect to the subject photographed.
A support of this type is known from the description of Patent Application No. PD98A000096 of the same Applicant. This describes a tripod comprising a spider for articulation of the legs and a support mounted in the spider with a first seating coaxial with the main axis of the tripod, and a second seating with axis substantially perpendicular to the first seating so that the column of the tripod can be received alternatively and removably in the first and the second seating .
In the case of photographic close-up shots or macrophotographs, in which it is necessary to get very close to the subject to be photographed, this tripod allows placements of the column, and consequently of the photographic equipment, very close up, in so far as the column can be mounted at right-angles with respect to the main axis of the tripod, yet said placements are limited to only two directions, perpendicular to each other, obtainable by mounting the column in one or other of the seatings provided on the spider. Disclosure of the Invention
The invention proposes as its principal aim that of improving the versatility of the tripods of known type by increasing the number of positions and placements allowed for the column. Within the scope of said aim, the invention likewise proposes to allow the adjustment of the position of the column easily and independently of the adjustment of the position of the legs of the tripod.
These and other aims are achieved by the invention by means of a tripod produced in accordance with the claims which follow.
Brief description of drawings
The characteristics and advantages of the invention will become clear from the following detailed description of one of its preferred exemplary embodiments illustrated by way of non-limiting example with reference to the following drawings, in which:
Figure 1 is a perspective view of a tripod produced according to the present invention, Figure 2 is a plan view of the tripod in Figure 1,
Figure 3 is a view in section along the line III- III in Figure 2 ,
Figure 4 is a view in partial section along the line
IV-IV in Figure 3, Figures 5 and 6 are perspective views of two details of Figure 4. Best mode of carrying out the invention
With reference to Figures 1 to 3 , the reference 1 indicates as a whole a tripod produced in accordance with the present invention and including a spider 2 having a main axis X in which there converge and are articulated three legs all indicated by 3, articulated on respective pins 4.
Each leg is produced with a telescopic structure having two or more extensions, the relative positioning of which is adjustable by means of clamps 5. The angular position of each leg 3 about the corresponding pin 4 is further adjustable by means of a lever adjusting device 6 of a type which is conventional per se .
Centrally in the spider there is provided a hole 7 extending coaxially with the axis X and capable of receiving a screw means 8 for locking a cylindrical pin 9 which is also coaxial with the axis X. On the pin 9 there is mounted rotatably about the axis X a support indicated as a whole by 10. The support 10 comprises a first and a second part respectively rigidly connectable to the spider 2 and to a column 11, the latter being provided at one end with a connection 12, for example a screw connection, for attaching an item of photographic equipment or other equipment thereto .
More particularly, the first part comprises a clamping member 13 in which is defined a cylindrical seating 14 coaxial with the axis X and intended to receive the pin 9. The seating 14 is interrupted circumferentially by a notch 15 at which there extend, towards the outside, two juxtaposed cheeks 16a, b. By means of the notch 15 the member 13 is elastically deformable and in particular is radially contractile transversely to the axis X.
The member 13 is clamped on the pin 9, so that it is rigidly connected to the latter by means of a screw clamping device indicated as a whole by 17. Said device comprises a pin arrangement 18 of axis Y perpendicular to the main axis X, passing through the cheeks 16a, b, and having a head 18a and an opposed screw-threaded portion 18b screwed into an operating knob 19. The reference 20 indicates a bearing, preferably of the rolling ball type, interposed between the knob 19 and the member 13, which serves to reduce the forces required by the user when actuating the knob 19.
The second part of the support 10 comprises a split sleeve arrangement 21 which is slipped onto the column 11. The column 11 is rotatably and slidably received in the sleeve arrangement 21 and is clamped on the latter by means of a tie-rod 22, mounted on the sleeve and connected by one of its axial ends to a lever 23. Said lever 23 is provided with a protuberance 24 interfering with the sleeve arrangement 21 to clamp the latter against the column 11 as a result of closing actuation of the lever on the sleeve itself .
From the sleeve arrangement 21 there extends an appendage 25 defined by opposed surfaces 25a, b and traversed centrally by a hole 26 by means of which the sleeve arrangement 21 is supported rotatably on the pin 18.
Between the appendage 25 and the cheek 16a facing the latter there acts a coupling with frontal teeth including a first and a second coupling member 27a, b that can be mutually coupled in the direction of the axis Y. The coupling members 27a, b comprise respective toothed crowns 28a, b extending coaxially with the axis Y, projecting respectively from the surface 25a of the appendage 25 and from the surface of the clamping member 13 facing the latter.
The toothed portions 28a, b are shaped with a profile such as to block the relative rotation between the first and the second part of the support, about the axis Y, when the coupling members 27a, b are mutually coupled. The coupling members 27a, b are axially clamped against each other by the screwing of the knob 19 on the screw- threaded portion of the pin 18. The toothed crowns 28a, b are further capable of being axially coupled with a preselected angular positioning with respect to each other about the axis Y, and consequently the sleeve arrangement 21, and therefore the column 11, can be oriented and locked with respect to the support 10, in a preselected operating position in which the column 11 is inclined with respect to the main axis X by a preselected angulation. The number of relative angular positions between the column 11 and the spider 2 is determined by the number and the angular pitch of the teeth of the crowns 28a, b.
It should likewise be noted that by means of the clamping of the knob 19 on the pin 18 both the blocking of the member 13 against rotation about the axis X and also the blocking of the sleeve arrangement 21 relative to rotation about the axis Y are obtained. Starting from a preselected placement of the column 11, in which rotation of the support 10 about the axes X and Y is blocked, a first and partial unscrewing of the knob 19 makes it possible to uncouple axially the coupling members 27a, b while maintaining the blocking of the support against rotation about the axis X. In said operating condition the column 11 can be freely oriented about the axis Y in order to be placed, if required, with a different inclination with respect to the main axis X.
Further unscrewing of the knob 19, however, effects the unblocking of the support also with regard to rotation about the main axis X of the spider.
The invention thus achieves the aims proposed by obtaining numerous advantages with respect to the known solutions. Firstly, with the tripod according to the present invention a greater versatility is obtained in the placement of the column with respect to the spider, with an increase in the number of positions, comprised and capable of being selected between two opposed operating positions in which the column is respectively disposed parallel and perpendicular to the main axis of the spider. Secondly, the invention advantageously makes it possible to obtain easy and rapid adjustment of the positioning of the column in addition to the fact that said adjustment is independent of the adjustment of the position of the legs of the tripod. This allows the user to act with greater rapidity and security in the placement of items of photographic equipment, which are often rather heavy, even in the case of photographic shots which are not particularly convenient or easy.

Claims

C L A I M S
1. An improved tripod comprising a spider (2) having a main axis (X) , at least three legs (3) converging in said spider (2) and articulated thereon, and a support (10) in said spider (2) for supporting a column (11) , characterized in that it comprises in said support (10) means for placement of the column for removably locking said column (11) in at least two positions in which the axis of the column is angularly inclined with respect to the main axis (X) of the spider.
2. A tripod according to claim 1, wherein the support (10) is mounted rotatably in said spider (2) about said main axis (X) .
3. A tripod according to claim 1 or 2, wherein between said support (10) and said spider (2) there are interposed means for blocking the rotation of the support (10) about said main axis (X) .
4. A tripod according to one or more of the preceding claims, wherein said means for placement of the column are incorporated in said means for blocking the rotation of said support (10) .
5. A tripod according to one or more of the preceding claims, wherein said support (10) comprises a first (13) and a second part (21) respectively rigidly connectable to the spider (2) and to the column (11) , and said placement means comprise a coupling with frontal teeth (27a, b) which acts between said first and second part (13, 21) .
6. A tripod according to claim 5, wherein the coupling can be selectively uncoupled.
7. A tripod according to claim 5 or 6 , wherein the coupling members (27a, b) are coaxial with each other in a direction substantially perpendicular to the main axis (X) of the spider.
8. A tripod according to one or more of claims 5 to 7, wherein said coupling comprises a first and a second coupling member (27a, b) including, respectively, a first and a second toothed portion (28a, b) provided respectively on the first and on the second part of the support, said toothed portions (28a, b) constituting means for blocking the relative rotation of said first and second part (13, 21) .
9. A tripod according to one or more of claims 5 to 8, wherein said first part comprises a clamping member (13) lockable relative to the spider (2) about said main axis (X) , said first toothed portion (28a) being formed on a surface of said clamping element (13), and said second part comprises a sleeve arrangement (21) for the removable locking of the column (11) , said second toothed portion (28b) being formed on an appendage (25) extending from said sleeve arrangement (21) .
10. A tripod according to claim 3, wherein said locking means comprise a screw clamping device (17) acting between said appendage (25) and said clamping member (13) in order to lock, in reciprocal coupling, said first and second toothed portion (28a, b) in a preselected angular position of the column (11) with respect to the main axis (X) of the spider (2) .
PCT/EP2000/004129 1999-12-06 2000-05-09 Improved tripod, in particular for optical and photographic use WO2001042706A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/148,729 US6824319B1 (en) 1999-12-06 2000-05-09 Tripod particularly for optical and photographic use
DE60024310T DE60024310T2 (en) 1999-12-06 2000-05-09 DEBURRING INSTRUMENT, ESPECIALLY FOR OPTICAL PURPOSES AND PHOTOGRAPHY
JP2001543953A JP4490021B2 (en) 1999-12-06 2000-05-09 Improved tripod, especially for optical and photographic use
EP00931144A EP1236007B1 (en) 1999-12-06 2000-05-09 Improved tripod, in particular for optical and photographic use
HK03107086A HK1054778A1 (en) 1999-12-06 2003-09-30 Improved tripod, in particular for optical and photographic use

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999PD000279A IT1309945B1 (en) 1999-12-06 1999-12-06 IMPROVED TRIPOD, IN PARTICULAR FOR OPTICAL AND PHOTOGRAPHIC USE
ITPD99A000279 1999-12-06

Publications (1)

Publication Number Publication Date
WO2001042706A1 true WO2001042706A1 (en) 2001-06-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/004129 WO2001042706A1 (en) 1999-12-06 2000-05-09 Improved tripod, in particular for optical and photographic use

Country Status (8)

Country Link
US (1) US6824319B1 (en)
EP (1) EP1236007B1 (en)
JP (1) JP4490021B2 (en)
CN (1) CN1220840C (en)
DE (1) DE60024310T2 (en)
HK (1) HK1054778A1 (en)
IT (1) IT1309945B1 (en)
WO (1) WO2001042706A1 (en)

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DE10139978B4 (en) * 2000-09-12 2011-06-01 Hakuba Shashin Sangyo K.K. Locking device and telescope unit
US9010710B1 (en) 2006-02-09 2015-04-21 Primos, Inc. Telescoping support stand apparatus
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CN102272674B (en) * 2010-10-28 2013-11-27 伟如宝株式会社 Support device and leg device
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CN102818135B (en) * 2011-06-10 2014-08-06 海洋王照明科技股份有限公司 Illumination lamp

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DE60024310D1 (en) 2005-12-29
HK1054778A1 (en) 2003-12-12
CN1220840C (en) 2005-09-28
JP4490021B2 (en) 2010-06-23
DE60024310T2 (en) 2006-07-20
ITPD990279A0 (en) 1999-12-06
JP2003516511A (en) 2003-05-13
EP1236007B1 (en) 2005-11-23
IT1309945B1 (en) 2002-02-05
US6824319B1 (en) 2004-11-30
EP1236007A1 (en) 2002-09-04
ITPD990279A1 (en) 2001-06-06
CN1408059A (en) 2003-04-02

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