WO1983000215A1

WO1983000215A1 - Method for manufacturing and assembling measuring tapes of the decametre type and decametre obtained by said method

Info

Publication number: WO1983000215A1
Application number: PCT/EP1982/000130
Authority: WO
Inventors: Stanley-Mabo
Original assignee: Scandella, Louis
Priority date: 1981-07-03
Filing date: 1982-06-23
Publication date: 1983-01-20
Also published as: DE3248859C2; IT1151817B; JPS58501053A; GB8304074D0; AU8583182A; FR2509039A1; FR2509039B1; IT8222210A0; GB2112142A; NL8220208A; NL191421B; NL191421C; DE3248859T1; IT8222210A1

Abstract

A unique type of winding drum (1) is provided, which is adapted to receive all types of tapes having a predetermined width; a shaft (14, 14') is provided with a crank (22) and is adapted to be inserted in the central hole (8) of the drum; frames of different types are provided comprising two side walls spaced from each other by a space adapted to the width of the drum and a central hole (13) for the passage of the shaft; series of printed tapes mounted on reserve reels (R) are provided; the free end of a tape is attached to a drum, such tape being cut at the beginning of the graduations, the pulling ring is fixed and a sub-assembly (E) is obtained and may be stored as such; said sub-assembly is mounted, on demand, inside a selected type of frame and it is fixed by means of the central shaft.

Description

- 1 -

Method of manufacturing and assembling measuring tapes of the decameter and decameter type obtained by this method.

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. on leaving the printing station, the strips are then wound in

coil and directed to the assembly station. 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.

Until now, the rest of the process consisted of cutting the wound tapes into coils, into unitary ribbons. For this purpose a person unwinds from the reel

IQ a portion of ribbon and wind it by hand, putting the end with the highest graduation inwards, while simultaneously carrying out quality control and cut it as soon as the origin of the ribbon graduations. Then she rolls up this ribbon

15 cut from the coil in the opposite direction waiting to be mounted, the origin of the graduations being on the side of the inner end of the ribbon. All the ribbons printed on a strip are therefore, after cutting, temporarily wound while waiting to be mounted.

20 in their case or on their respective frame. During the final assembly, 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.

30.

To this end, 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 origin, the sub-assembly thus formed by the drum and the wound ribbon can be stored as is, mount this sub-assembly, on request, inside a chosen type of frame or case and fix it via said central axis.

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

_ 4 - - ^' _. ^" _.. while the other consists of a radial slit opening in a recess, formed in the side wall and which surrounds a pin around which the internal end of the ribbon in the form of a loop can be hung.

Thus, 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.

Furthermore, 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. .

0 The accompanying drawing shows, by way of example, several embodiments of the measuring tape manufactured according to the method of the present invention.

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. Q

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). During this printing phase, 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. There is thus a succession of 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. 0

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. In the case of mounting a metal strip, the inner end thereof, provided in a usual manner with an end 41 cut into a ^" 5 T shape ^" , is hooked to the drum 1 through the slot practiced on the periphery 3 and retained in this slot thanks to the two branches of the T; it can also be attached to the dowel 6 through the radial slot 4 by the loop formed by introducing the T-shaped end 41 into a triangular opening 42 décou¬ pée dans.le ribbon 10. In the case of mounting a ribbon

5 flexible, for example made of plastic, the internal end of the latter is folded in the form of a loop and this loop, after welding, is introduced through the radial slot 4 around the ankle 6 and the ribbon is then wound normally on the drum in

I ^Q either direction. So that the extra thickness of the tape at the loop does not hinder the winding of the tape, the periphery of the drum located on either side of the slot 5 and the pin 6 has a lowered portion 7 and 7 '. The width of the winding drum

15 is substantially the same as that of the measuring tapes, which for a rationalization of the manufacture will preferably all have the same width whatever their type.

20. 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.

5 In addition, 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.

Firstly, as illustrated in FIG. 12, 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. Preferably at this stage of manufacture, the traditional pulling ring 33 is fixed at the free end of the ribbon carrying the origin of the graduations.

Also manufactured in series, frames of different types, for example straight, cruciform (fig. 4), Q or housings (fig. 8,9).

Referring to Figures 4 and 5, in which is represented a type of cross connection, one can see that it is formed by two parallel walls 12, 12 5 'of the same shape spaced apart from ^the' other a space adapted to the width of the drum 1 and having a central hole 13 allowing the passage of the axis 14. The two parallel walls 12, 12 ′ are connected together by screws 15 or riveted spacers and comprise ^Q in in addition to a handle 16. This cruciform frame preferably arrives in finished production, that is to say that its two parallel walls 12, 12 ′ are already fixed to one another and joined to the handle 16. In the case of the round box illustrated in FIG. 8 the two side walls 5 are welded together. The frame thus formed constitutes a kind of case in which a ribbon 10 of length and

-gURE chosen type previously wound on its drum 1. For this purpose the two adjacent arms 18, 19 of the frame are

^• separated by a distance such that they allow the sliding passage of the ribbon 10 wound on the

5 winding drum 1.

In the case of a round frame illustrated in FIGS. 8.9, the peripheral wall of the latter is interrupted on a part as illustrated in 20 to allow this passage.

IQ

Referring to Figures 5 and 6 of which we can see how is made the center axis 14. The latter is formed in two parts ^'14, 14' the first portion 14 being secured to one end of a support

1521 for the tiltable crank 22 which is provided in the known manner with a crank 23 facilitating its actuation. 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 ^•

In the embodiment shown, that is to say with an elongated, cruciform frame, intended to support a large decameter, for example 50 meters, 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. When 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. In the case of their use with a round frame, as illustrated in FIGS. 8 to 1 (λ, the 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.

In Figure 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. Q

In the embodiment according to Figure 8, 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.

When assembling from instruments, we take 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.

In the case of a frame, the end piece 36 is then fixed which serves to guide the ribbon and retains it. Q the draw ring 33.

In the case of a round housing, 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.

Claims

Patent claims

1. 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 cqupé à the desired length from a strip previously printed with a succession of scales of the same length, this strip being wound on standby on a reserve reel, characterized in that the production consists of: ^Q a) manufacturing a drum winding (1) of a single type, adapted to receive all types of tape (40) of different length but of defined width and to be mounted in all types of frame or housing, comprising attachment means ribbon as well as a central hole (8) and having essentially the same width as the ribbon, b) manufacturing an axis (14,14 ') provided with a crank (22, 29) and adapted to be introduced into the central hole (8) of the winding drum so that be linked with it Q in rotation, c) manufacture frames of different types, notably straight or cruciform, or boxes of different types, having two parallel walls "(12,12 '; 17) spaced from each other by a space adapted to the width of the drum (1) and having a central hole (13) adapted to said axis, d) manufacturing series of strips of ribbons (10) previously printed with a succession of scales of the same given length and wind them on reels of 0 reserve (R) so that the highest graduations of each scale are directed towards the free end of the strip , and that the assembly consists of: e) firstly attaching to a drum (1) directly the free end of a ribbon (10) previously cut out of the chosen type and length, coming from one of the

^" spools of reserve, and wind this ribbon on the drum until the origin of the graduations appears,

5 cut the ribbon at the origin, the sub-assembly (E) thus formed by the drum and the wound ribbon can be stored as]., F) mount this sub-assembly (E), on request, of a selected type of frame or case and the

IQ fix via said central axis.

2. Method according to claim 1, characterized in that the frame or the case comes from finished manufacture, with the two parallel walls, and that it is designed so as to have a peripheral opening

(20) whose length is such that the coil formed by the ribbon wound on the drum can pass and that said sub-assembly is slid radially in the frame or the housing. _r - 0

3. Method according to claim 1 for a ribbon having a pulling ring at its free end, characterized in that said pulling ring (33) is fixed to the free end of the ribbon (10) before the sub-in - 5 seems either mounted in the frame or in the case.

4. Decameter resulting from the process according to any one of claims 1 to 3, characterized in that the winding drum (1) is formed in a single piece of plastic or any other molded, cylindrical material, provided with a non-round central hole (8) whose profile corresponds to that of the axis (14, 14 '), this drum comprising a peripheral winding surface (12) not limited by lateral flanges and provided at least two means for attaching the tape, one consisting of a peripheral slot (3) in which the internal end of the strip can be hung

- = GRE T-shaped ribbon, while the other consists of a radial slot (6) opening into a recess (5) ^" formed in the side wall and which surrounds a che¬ city (4) around which can be hung the inner end of the loop-shaped ribbon.

5. Measuring device according to claim 4, characterized in that the άits means for attaching the tape are each reversible so that the tape can 0 be wound after hanging in one or the other direction.

6. Measuring device according to one of the claims 4 or 5, characterized in that the lateral faces of the drum are crossed by at least one eccentric hole

(10) and that the crank (22,29) is mounted on a support (21) integral with the axis (14,14 ') and that it is tiltable between a deployed position in which it can drive the axis in rotation and a retracted position Q in which it blocks the rotation of the axis by being housed in said eccentric hole ^ (10) of the drum (1) through a corresponding hole provided in the frame or the housing.

5 7. Measuring device according to one of claims 4, 5 or 6 characterized in that the frame or the round or square box is formed in one piece and that its periphery wall is interrupted on a part.

Q 8. Measuring device according to one of claims 4, 5 or 6, characterized in that the frame is cruciform and that the two adjacent arms (18,19) are spaced apart by a distance such that they allow passage through sliding of the wound ribbon on the winding drum. 5

9. Decameter resulting from the process according to revendi¬ cation 3, characterized in that the housing is provided with a guide part (37) of the tape provided with a lateral slot (38) through which can be insé- SOE ^• the free end of the tape (1) having the ring drawing. (33), said piece of ^"guide (37) being mounted in said casing after insertion of said strip in the side slot.

10. Decameter according to claim 8, characterized in that the frame is provided with a guide piece (36) of the tape fixed on said frame after the establishment of the sub-assembly (E).