EP2264392A2 - Testeur de fleches - Google Patents

Testeur de fleches Download PDF

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Publication number
EP2264392A2
EP2264392A2 EP10165788A EP10165788A EP2264392A2 EP 2264392 A2 EP2264392 A2 EP 2264392A2 EP 10165788 A EP10165788 A EP 10165788A EP 10165788 A EP10165788 A EP 10165788A EP 2264392 A2 EP2264392 A2 EP 2264392A2
Authority
EP
European Patent Office
Prior art keywords
housing
spinetester
holding device
weight
button
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10165788A
Other languages
German (de)
English (en)
Inventor
Bernhard Mey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2264392A2 publication Critical patent/EP2264392A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B5/00—Bows; Crossbows
    • F41B5/14—Details of bows; Accessories for arc shooting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B5/00—Bows; Crossbows
    • F41B5/14—Details of bows; Accessories for arc shooting
    • F41B5/1442—Accessories for arc or bow shooting
    • F41B5/148—Accessories and tools for bow shooting not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B35/00—Testing or checking of ammunition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B35/00—Testing or checking of ammunition
    • F42B35/02—Gauging, sorting, trimming or shortening cartridges or missiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B6/00—Projectiles or missiles specially adapted for projection without use of explosive or combustible propellant charge, e.g. for blow guns, bows or crossbows, hand-held spring or air guns
    • F42B6/02—Arrows; Crossbow bolts; Harpoons for hand-held spring or air guns
    • F42B6/04—Archery arrows

Definitions

  • the invention relates to a spinetester, with a foot, on which two mutually spaced supports are arranged, which are provided with a support means, preferably in the form of rollers, with a holding device arranged between the supports for fastening a measuring device which has a feeler and a weight.
  • Such a spin ester is already known. With this spin tester, it is necessary to place the probe under the arrow shaft to be tested, the probe being connected to a dial gauge and for testing the spin value, a weight with a default value of preferably 908 g is made to act on the arrow shaft. The weight is moved downwards to activate the dial gauge.
  • the dial indicator is in this case mounted vertically displaceably on a plate which is adjustable along a holding device, for example in the form of a bar.
  • a disadvantage of such a Spinetester is the inaccuracy of the dial gauge, which in particular also results from the fact that the button is to be applied from below to the shaft, and at the same time the dial gauge to the initial position (zeroing) is tuned.
  • the main problem here is the zero setting of the measuring device, as the arrow shaft is detected from below by the button and the button is coupled via a connecting bar on the located above the arrow shaft dial gauge. The adjustment is made in this case by tightening a clamping screw when the zero setting has been reached, after the vertical adjustment of the probe has been carried out together with the dial gauge.
  • the invention has for its object to improve a spin ester of the type mentioned in such a way that an accurate and simple spine measurement is possible.
  • a spin tester having a foot on which two mutually spaced supports are arranged, which are provided with a support means, preferably in the form of rollers, further comprising a support means arranged between the supports for attaching a measuring device, which has a button and a weight, in which further the weight is formed as a housing, which is provided movable in the vertical direction relative to the foot along the holding device, in the housing a slider carrying the push button is mounted, which can be locked by a clamping device relative to the housing, and the measuring device consists of a transducer.
  • the invention provides a Spinetester, in which the Zero adjustment is achieved in a simple and fast manner by the button is placed in the form of a push button from above on the arrow shaft lightly after placing an arrow shaft, where the push button bearing slider relative to the associated housing so far is moved downward, that the push button rests on the arrow shaft before a clamping screw is tightened to fix the push button holding slide relative to the housing.
  • the housing is in a zero position, in which the weight does not yet act on the shaft. Subsequently, the housing is released together with its weight relative to the holding device using a locking lever arranged on the housing, whereby the housing acts together with its weight on the arrow shaft and the spin value is displayed.
  • a digital glass rod is preferably provided as the measuring sensor, which detects the movement of the housing relative to the holding device and provides an indication in lbs or in spins.
  • Fig. 1 to 4 show a preferred embodiment of the spin ester according to the invention.
  • the spinetester a foot 1, which consists in the illustrated embodiment of a transverse bar on the side supports 2, 3 are arranged, which are vertically upwardly from the foot 1 and are each provided with a support means 5, 6, preferably in shape of centering rollers, which have substantially the shape of a conventional pulley and serve to receive an arrow shaft laterally supporting, as is made Fig. 1 is apparent.
  • the arrow shaft is designated 8 and thus lies on the two centering rollers.
  • a holding device 9 preferably in the form of a bar, which is vertically upwardly from the foot 1 and at the same time serves as a guide for a housing 10, as will be described in detail below.
  • the housing 10 is designed to act as a whole and includes a standard weight of, for example, 908 g.
  • a zero position the housing 10 is in the in Fig. 1 shown vertical position, wherein the zero position by a still descriptive locking mechanism is adjustable.
  • a slidably mounted on the housing 10 slider 11 from the in Fig. 1 shifts position shown down until a button 12, which protrudes laterally on the slide 11, comes to lie on the arrow shaft 8.
  • a clamping screw 13 is screwed tight, the button 12, preferably also called push button, lightly rests on the arrow shaft 8 and this position represents the starting position for the spin test.
  • the weight is displaced in the form of the housing 10 on the arrow shaft 8 via the button 12 to measure in this way the bending of the arrow shaft 8.
  • the housing 10 is further provided with a transmitter 14, which is preferably formed by a glass measuring rod or a digital position indicator, wherein such an electronic glass measuring rod or a digital position indicator by means of a laser beam, the displacement of the housing 10 relative to the holding device 9 measures and a corresponding Provides digital value to a digital display 16 indicative of the deflection of the arrow shaft 8 in units of lbs or in units of spins.
  • a glass measuring rod has a resolution of 1 ⁇ m, wherein a high measuring accuracy is achieved by laser measurement.
  • Such glass scales include a read head carriage, whereby the adjustment of the housing 10 relative to the holding device 9 is detected.
  • Fig. 2 shows a rear side view of the housing 10 used according to the invention without cover plate and illustrated in the illustrated embodiment arranged on the back of the holding device 9 locking lever 15 which is pivotally mounted relative to an axis 16 on the housing 10 and a locking pin 17 at its in Fig. 2 wearing upper end.
  • the locking lever 15 is in a recess or in a window of the strip-shaped holding device 9 and is correspondingly Fig. 3 in engagement with a guide cam 18 formed in a cover plate 20 forming the rear end of the housing 10 and fixed to the housing 10 by screw means 21.
  • the holding device 9 in the form of a strip is thus guided between the cover plate 20 and the housing 10 and allows an adjustment of the housing 10 in the vertical direction upwards or downwards relative to the holding device 9 via a movement path which is predetermined by the latching lever 15.
  • a leaf spring 22 is inserted into the recess 9 in the holding recess 9 pronounced recess 23, whereby it is achieved that the locking lever 15 is adjustable about its axis 16 in a clockwise and counterclockwise direction depending on the course of the guide curve 18 ,
  • the function of the locking device will be explained in more detail below with reference to the Fig. 4a ff.
  • the slider 11 By loosening the clamping screw 18, the slider 11 can be easily placed together with the button 12 on the arrow shaft 8, after which the clamping screw 13 is clamped again and then the slider 11 is fixed together with the button 12 relative to the housing 10.
  • This position corresponds to a middle position for zeroing the button or driving pin on the corresponding shaft diameter of the shaft 8.
  • the weight of this housing 10 does not yet act on the shaft 8, but it is the position for zeroing the button 12 observed.
  • the pin 17 is in the in Fig. 4d shown locking groove 25b, which is opposite to the position Fig. 4b by moving the housing 10.
  • the housing 10 from the position to Fig. 4b slightly raise, causing the locking lever 15 in the direction of in Fig. 2 shown, ie, in a clockwise direction, is pivoted, so that the housing 10 can be lowered and then retracted the locking pin 17 in the locking groove 25 becomes.
  • FIG. 4e shows the spin tester according to the invention in the measuring position in which the shaft is bent and the maximum deflection of the arrow shaft is measured.
  • the locking lever 15 with the locking pin 17 is then accordingly Fig. 4f in a position in which the detent pin 17 comes to lie in the uppermost detent groove 25c, that is, the detent pin 17 is in the lowest position, which corresponds to the measuring position, is latched.
  • the upper detent position may be altered by extension of the slot to permit greater displacement of the housing 10 in the downward direction.
  • the housing 10 is then slightly raised, whereby the locking pin 17 is released relative to the locking groove 25c, so that the housing 10 can be lifted together with the button 12 in the vertical direction upwards until the upper rest position is reached.
  • the display of the display device is set to zero. This indication is not adjusted when the slider 11 together with the button 12 assumes the initial measuring position, i. is placed from above on the arrow shaft 8.
  • the back of the housing 10 is provided with a recess 10a, which serves to receive the holding device 9, preferably in the form of a bar.
  • the holding device 9 is enclosed between the housing 10 and the cover plate 20 and guided.
  • the housing 10 is in its "uppermost" position when the detent pin 17 is located in the detent groove 25a.
  • the locking lever 15 is rotated counterclockwise, so that its designated 15a tip in FIG. 2 sits on the right portion of an approximately V-shaped upwardly projecting leaf spring 22, whereby the locking lever 15 in a opposite FIG. 2 held counterclockwise rotated position.
  • the according FIG. 3 substantially vertical, but slightly curved with respect to an imaginary vertical line and bent to the left ( FIG. 3 ), pivoted below the locking groove 25 in a clockwise direction.
  • the tip 15a is displaced over the V-shaped tip of the leaf spring 22, so that the locking lever 17 is approximately one in FIG. 2 shown position in which it rests against the locking groove 25 opposite portion of the guide curve 18.
  • a complete lowering of the housing 10 can be done until the locking pin 17 comes to rest in the upper locking groove 25 c.
  • the locking lever 17 is again out of his FIG. 2 swiveled corresponding position counterclockwise and held in this position when the housing 10 is displaced back up, so that the locking pin 17 is alternatively able to engage in the locking grooves 25b and 25a.
  • This control of the movement of the locking lever 15 is made possible by the use of the approximately V-shaped upwardly projecting leaf spring 22 in conjunction with a bevelled lower end of the locking lever 15, which ends in the tip 15 a, as is apparent from FIG. 2 evident.
  • the bevel of the locking lever 15 is formed in the illustrated embodiment so that the tip 15a is defined at the lower right end of the locking lever 15.
  • the bevel of the locking lever 15 and the arrangement of the leaf spring 22 constitute a control mechanism, the position of the locking lever 15 relative to the axis 16 in conjunction with the control cam 18 after FIG. 3 adjusted so that the function described above is guaranteed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
EP10165788A 2009-06-17 2010-06-14 Testeur de fleches Withdrawn EP2264392A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009026989A DE102009026989A1 (de) 2009-06-17 2009-06-17 Spinetester

Publications (1)

Publication Number Publication Date
EP2264392A2 true EP2264392A2 (fr) 2010-12-22

Family

ID=42668894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10165788A Withdrawn EP2264392A2 (fr) 2009-06-17 2010-06-14 Testeur de fleches

Country Status (2)

Country Link
EP (1) EP2264392A2 (fr)
DE (1) DE102009026989A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955475A (zh) * 2018-08-28 2018-12-07 宁波城市职业技术学院 一种量箭器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015122052B4 (de) 2015-12-17 2021-12-16 Meik Andre Landwehr Spinetestvorrichtung sowie Messverfahren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203308A (en) * 1978-03-07 1980-05-20 Davis Duane L Apparatus for testing and straightening arrow shafts and the like
US5976028A (en) * 1998-06-22 1999-11-02 Ciccarello; Carl Golf club spine finder and method
US6250168B1 (en) * 1999-03-24 2001-06-26 D'aguanno Frank Method and apparatus for locating the strongest point on a golf club shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955475A (zh) * 2018-08-28 2018-12-07 宁波城市职业技术学院 一种量箭器
CN108955475B (zh) * 2018-08-28 2023-12-15 宁波城市职业技术学院 一种量箭器

Also Published As

Publication number Publication date
DE102009026989A1 (de) 2010-12-30

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