Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
  • G01B3/10—Measuring tapes
  • G01B3/1005—Means for controlling winding or unwinding of tapes
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
  • G01B3/10—Measuring tapes
  • G01B3/1005—Means for controlling winding or unwinding of tapes
  • G01B2003/1023—Winding mechanisms
  • G01B2003/1025—Winding mechanisms operated manually, e.g. crank-handles
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
  • G01B3/10—Measuring tapes
  • G01B2003/1058—Manufacturing or assembling methods

Definitions

• the invention relates to a method of manufacturing and assembling rolling linear measurements of the decameter type, in particular 10, 20, 30, 50 meters, having a ribbon wound " on a drum which is rotatably mounted in a frame or a housing. , the ribbons being cut to the desired length from a strip previously printed with a succession of scales of the same length, this strip being wound up on standby on a reserve reel.
• Linear measuring tapes in particular decametres, are manufactured in series by printing a metallic strip or a flexible material of the nylon type.
• the strip passes under a printing wheel which prints on it a succession of scales of the same length. for example 10, 20, 30 or 50 meters. to be a choice of scales to read the fabrica ⁇ ⁇ tion, it thus prints on different bands of the selected length scales.
• the strips are then wound in
• Each reel therefore comprises a succession of ribbons printed one after the other, the highest graduation of each ribbon being directed towards the free end of the strip.
• the ribbon is therefore taken up and fixed then wound on a chosen winding drum which is generally already mounted on its frame.
• the present invention proposes to simplify the method of manufacturing and assembling measuring tapes, in particular decametres, by providing in particular for standardization of the various elements entering into the constitution of the instrument.
• the method according to the invention is characterized by the fact that the method consists in manufacturing a winding drum of a single type, suitable for receiving all types of ribbon of different length.
• 35 but of defined width and to be mounted in all types of frame or housing comprising means for attaching the ribbon as well as a central hole and having essentially the same width as the ribbon, making an axle provided with a crank and adapted to be introduced into the central hole of the winding drum so as to be linked with it in rotation, making 5 frames of different types, in particular straight, cruci ⁇ shaped or round, or boxes of different types, comprising two parallel walls spaced from one another by a space adapted to the width of the drum and having a central hole adapted to said axis, manufacture, IQ series of strips of ribbons previously printed with a succession of scales of the same given length and wind them on ' reserve coils in such a way that the highest graduations of each scale are directed towards the end free of the strip, and that the assembly consists in first of all attaching to a drum directly the free end of a previously cut ribbon of the chosen type and length, coming from one of the reels reserve, and wind this ribbon on the drum until the origin of the graduations appears, cut the ribbon at
• the invention also relates to the decameter resulting from this process, characterized in that the winding drum is formed in a single piece of plastic material, or other molded material, cylindrical, provided with a central hole. non-round whose profile corresponds to that of the axis, this drum comprising a peripheral winding surface not limited by lateral flanges and provided with at least two means for attaching the ribbon, one consisting of a slot made on the periphery in which the internal end of the T-shaped ribbon can be hung
• this new process allows to simplify the manufacture considé ⁇ siderably and assembly of the instru ⁇ ments, on the one hand the fact of providing a single drum LEMENT enrou- Q for all types of instruments, indé ⁇ pendently the choice of the type of frame or ribbon, allows mass production, therefore less expensive; on the other hand, the fact of directly winding the ribbon coming from a spool on this winding drum makes it possible to eliminate manipulation.
• This subassembly thus formed by the ribbon wound on its drum can be stored as it is, waiting to be mounted, on demand, in a chosen frame or case, or to be simply sold in this form, as spare tape 0.
• a link is naturally provided to link the drum and the turns of the ribbon in order to avoid the accidental unwinding of the latter.
• the assembly of the sub-assembly in a chosen frame or case is also very simplified since it suffices to slide it between the parallel walls of the frame or case and to fix it by means of the central axis. .
• Figure 1 is a front view of the winding drum.
• Figure 2 is a sectional view along the axis II-II of Figure 1.
• FIG. 3 is a profile view of the drum illustrated in FIG. 1.
• Figure 4 is an overall view of an instrument with an assembled cruciform frame, with the crank in the locking position.
• FIG. 5 is a partial view, in section, of the instrument along the axis V-V of FIG. 4.
• FIG. 6 is an exploded view, partially in section, of the winding drum, of its axis of rotation with the crank and of the frame,
• Figure 7 is an enlarged view of the end of the cadra according to Figure 4 with the Q ribbon pulling ring.
• Figure 8 is an overall view of an assembled round frame instrument, with the crank in the operating position. 5
• Figure 9 is a front view of the frame according to Figure 8, only.
• FIG. 10 is a sectional view of the instrument along the axis X-X of FIG. 8.
• Figure 11 is a view of the sub-assembly formed by the ribbon wound on its winding drum.
• Figure 12 is a schematic view of the installation for winding a ribbon on its drum.
• Figure 13 is a plan view of the inner end of the ribbon.
• the process consists in manufacturing measuring tapes of different types either in varnished steel, or coated with a thick polyamide film, or in synthetic material, in the same way as in the introduction, that is to say say by printing on a very long strip several scales of determined length for example 10, 20, 30 0 or 50 meters and then storing the strip thus printed on a large reserve reel R (fig.12).
• the graduations are affixed in such a way that the highest graduation of each printed scale is found to be directed towards the free end of the strip.
• ribbons, or scales, on the same band and ⁇ will then be cut into individual tapes and then be mounted in a housing or a suitable frame.
• Winding drums of a single type are manufactured in series, as illustrated in FIGS. 1 to 3.
• the drum 1 consists of a single piece, made of plastic, cylindrical, comprising a winding surface.
• Lement peripheral 2 not limited by side flanges.
• the winding surface 2 of this drum 1 has two reversible ribbon attachment means, one consisting of a peripheral slot 3, the other by a radial slot 4 opening into a circular recess Q formed in the wall side of the drum and which surrounds a pin 6 formed in the side wall.
• the drum 1 is further provided with a central hole 8 passing through its side walls and provided with two flats 9, which allow it to be linked in rotation with the central axis as will be described later.
• two eccentrically diametrically opposed holes 10, 10 ′ also pass through the lateral walls of the winding drum, these holes being intended to receive the actuating crank when the latter is in the non-position. use and simultaneously allow 0 in this position the blocking of the winding drum through the thickness of the wall of the housing or of the frame.
• a drum 1 is attached directly to a drum 1
• the free end carrying the highest graduation of a ribbon of the selected type and length, originating one of the stock bobbins and R is wound the ribbon, in the controlling, on the drum until qu'appa- • Raisse the origin of the graduations of the tape, then it is cut and thus obtained a sub-assembly E, (fig.ll), ready to be mounted in a frame.
• the ribbons from the same supply roll R are therefore each wound successively on the drum enrou- LEMENT, cut ,,, and they can be stored as is waiting to be mounted in frames as requested Q, or sold, as a replacement ribbon.
• the turns of the ribbon are naturally connected to the drum by a temporary link, not shown ', which prevents to unfold.
• the traditional pulling ring 33 is fixed at the free end of the ribbon carrying the origin of the graduations.
• frames of different types for example straight, cruciform (fig. 4), Q or housings (fig. 8,9).
• peripheral wall of the latter is interrupted on a part as illustrated in 20 to allow this passage.
• the center axis 14 is formed in two parts '14, 14' the first portion 14 being secured to one end of a support
• the axis 14 is further provided with a threaded hole 24 opening at its free end and two flats 25, diametrically opposite, provided to adjust between the two flats 9 of the drum 1.
• the other part 14 '' of the axis is also provided with corresponding flats, a central hole for the passage of the fixing screw 26 and a shoulder 27 which makes it possible to hold the axis on the frame. 5 •
• the crank 22 is relatively long and is designed to occupy two positions, a first non-use position as drawn, in which the crank is applied against the frame and the pin 23 is housed in a hole 28 in the side wall 12 so that the winding drum 1- and l axis 5 14 are blocked in rotation relative to the frame.
• a first non-use position as drawn
• the crank is applied against the frame and the pin 23 is housed in a hole 28 in the side wall 12 so that the winding drum 1- and l axis 5 14 are blocked in rotation relative to the frame.
• the user wants to rewind or unwind the tape on the frame, he raises crank 22 and lowers it. roll 90 or 180 so that the pin 23 is released from the locking position.
• the pins 14 with the crank support 21 are also produced in series and can be used with any straight, cruciform or round frame.
• crank support 21 receives a shorter crank 29, also provided with a crank 30 intended to be housed, in the folded position non-use, illustrated in fig.10, in a housing 31 formed in the wall of the support 21 opposite one of the eccentric holes 10, 10 'of the drum 1 and through an opening 32 of the frame 17, of tile so that in this folded position the winding drum and central axis assembly is locked in rotation relative to the round frame 17.
• FIG. 7 is illustrated the end of the frame, provided with the guide piece 'and holding the free end of the tape.
• This end piece is formed in two parts, a fixed part 34, previously fixed by screws 35, or riveted spacers, between the walls 12, 12 * of the frame, and an attached complementary part 36 which is not fixed to the frame only after the installation of the subassembly formed by the ribbon 10 and the drum 1.
• the ribbon 10 therefore passes through the slot delimited by the fixed part 34 and the added part 36.
• a retractable tip 40 can also be mounted in the fixed part 34.
• the end piece 37 is wedge-shaped and is provided with a lateral slot 38 to allow the passage of the free end of the ribbon provided with the ring of draw 33, prior to mounting of this part 37 on the housing, which adjusts between the two lateral walls of the housing and is fixed by means of two small side screws 39.
• a sub-assembly as defined above comprising a drum 1, a ribbon 10 of selected type and length and the pulling ring 33 and it is slid between the side walls of a selected type of frame or right, cruciform or "* a housing. it assembles the frame and the drum with the central axis 14 previously provided Q of a crank of suitable length to form the frame, and fixed the axis in the frame by means of the screw 26 ' after having inserted the second .part of the axis 14', the axis then being linked in rotation with the drum 1, but free in rotation with the frame while 5 that it is simply retained in translation relative to the frame.
• the end piece 36 is then fixed which serves to guide the ribbon and retains it. Q the draw ring 33.
• the free end of the ribbon provided with the pulling ring is inserted perpendicularly into the end piece 37 through the side slot 38, then the end piece 37 is. disposed between the two walls 17 of the frame and fixed by means of the lateral screws 39.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Tape Measures (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9260180

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (1)

Citations (8)

Family Cites Families (1)

• 1981
  • 1981-07-03 FR FR8113143A patent/FR2509039B1/fr not_active Expired
• 1982
  • 1982-06-23 DE DE823248859T patent/DE3248859T1/de active Granted
  • 1982-06-23 JP JP57501901A patent/JPS58501053A/ja active Pending
  • 1982-06-23 WO PCT/EP1982/000130 patent/WO1983000215A1/en active Application Filing
  • 1982-06-23 AU AU85831/82A patent/AU8583182A/en not_active Abandoned
  • 1982-06-23 NL NL8220208A patent/NL191421C/xx not_active IP Right Cessation
  • 1982-06-23 GB GB08304074A patent/GB2112142A/en not_active Withdrawn
  • 1982-07-02 IT IT22210/82A patent/IT1151817B/it active

Patent Citations (8)

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