WO2008068355A1

WO2008068355A1 - Flexometer refined by rotating hook

Info

Publication number: WO2008068355A1
Application number: PCT/ES2007/000590
Authority: WO
Inventors: Jose CARREÑO SARRIAS
Original assignee: Medid Internacional, S.A.
Priority date: 2006-12-05
Filing date: 2007-10-18
Publication date: 2008-06-12
Also published as: ES1064394U; ES1064394Y

Abstract

The invention relates to refinements introduced to the end part of the tape of a flexometer, where the hook of the tape is fitted, enabling same to rotate on itself with respect to the tape, such that in each rotation of 180° said hook is maintained in a fixed position.

Description

PERFECTED ROTATING NAIL "

More specifically, the invention relates to improvements introduced in the extreme part of the tape of a flexometer, where the nail of the tape is mounted, which can rotate on itself with respect to the tape, so that at each turn of 180 ^to said nail is held in a fixed position.

Flexometers or measuring tapes are used to take measurements horizontally, but if you want to take measurements vertically, being the measure we want to take more than 1.5 meters or more, depending on the flexometer, it is necessary to hold the nail ensuring its verticality because its flexibility allows buckling or bending forward.

The state of the art of the flexometers, as far as the end of the belt is concerned, is formed by tapes whose end is provided by a nail or stop formed by a metal sheet bent at right angles and which in its horizontal part joins the end of said measuring tape by means of screws, rivets or equivalent means, so that the flexometer allows to take measurements by a single person just by enduring or supporting the end of the tape, the nail, at one point and stretching the tape the reel unrolls tape so that it extends from the inside of the flexometer, that is its casing outwards. In some flexometers the nail is attached to the end of the tape by fixed means, however it is usual for it to move about 2 or 3 mm. approximately, for the measurement of interiors and exteriors. However, in the state of the art no flexometer capable of turning the nail on itself with respect to the end of the tape is reflected. The usefulness of this invention is that when measuring distances vertically, and as a consequence of the concavity of the tape measure in a transverse direction, it yields forward, preventing vertical measurements, and also highlighting that when changing faces to avoid said fall it is not graffiti on its back.

Other measuring positions are not possible with conventional flexometer tapes, because the horizontal measurement of the nail itself causes the tape to be separated from the horizontal plane, the measurement being distorted from what it really is, since the The height of the nail prevents the tape from being in contact with said horizontal plane.

To this end, the tape starts on one of its characteristics by printing it on both sides, so that it can be measured by supporting the tape by the concave face on the object to be measured, since the tape convex the tape It never bends.

The improvements introduced in the flexometer are based on the incorporation at the end of the tape of a nail disposed in the plane perpendicular to the tape coupled in solidarity with a cam, whose particular configuration allows the rotation of the same (nail and cam) and its interlocking in two determined positions, in combination with means for retaining the nail-cam assembly in the two fixed working positions, and means for fastening to the belt. The aforementioned stability positions of the nail-cam assembly are diametrically opposed: in the first position (O ² ) the nail is in the plane perpendicular to the tape and its end points perpendicular to the lower longitudinal edge of the tape; and in the second position (rotation of 180 ^a ) the nail is in the same plane perpendicular to the tape but its end points in the opposite direction.

Preferably the cam is formed by a substantially cylindrical body that extends perpendicularly from the upper part of the rear face of the nail, but said cylindrical body is affected by its upper and lower part by a plane that longitudinally cuts the cylinder. In this way, thanks to these two planes provided on the cam in collaboration with the retention means, it is guaranteed that the nail-cam assembly is maintained in one of the two possible fixed positions described above.

The nail-cam assembly is mounted on the concave surface of the end of the tape, and more specifically in its central area, so that one of the planes of the cam is in contact with the central part of the end of the tape, and the Nail is always outstanding.

The retention means of the nail-cam assembly, which are mounted on the cam and cover it partially or totally, allow the complete rotation of 360 ^a of the nail-cam assembly and its interlocking in the two fixed working positions: 0 ^a and 180 ^s . Said retention means are formed by a cover that is mounted on the cam, the contour of which fits perfectly to the plane of the cam, so as to guarantee the interlocking of the nail-cam assembly in one of the two working positions. According to this configuration, the cam is arranged in the channel formed by the sheath and the upper face of the tape, being able to engage in it and remaining in a fixed position. The fastening means of said nail-cam assembly allow the nail-cam assembly and retention means to be held together at the end of the tape, and are formed by plates that are mounted at the same height as the cover but in the back side of the tape. Both pieces, sheath and plates, are held together by screws or rivets, which pass through the tape. The holes provided in the tape are coliserous, to allow a certain tolerance of the tape, so that it can be moved slightly to adapt to the flat contact surface of the cam.

Optionally, to allow the nail to move forward or backward for internal or external measurement, a cab is incorporated at the end of the cam, with a diameter slightly larger than the diameter of the cam. The end of the tape is provided with an adapted hole so that the cabot protrudes slightly below the tape. This hole will have a length greater than the thickness of the cabot to allow the displacement of the nail assembly, specifically a length equal to the sum of the thickness of the cabot and the thickness of the nail.

Other details and features will become apparent in the course of the description given below, in which reference is made to the accompanying drawings and in which a practical embodiment of the invention is described. . However, said embodiment is shown by way of illustration and not limitation thereof.

The following is a detailed account of the main parts of the invention that are graphed below in the figures annexed herein;

(10) tape measure,

(11) cover, (lia) central part, (llb) wings,

(12) screws or rivets,

- (13) cam, - (14) cabot,

(15) nail set,

(15a) vertical portion of the nail (15),

(16) back side of the vertical portion (15a),

(17) plates, - (18) colossal holes of the final section (24), (19) cabot,

(20-21) stepped rod, (22) measuring stripes of the sheath (11),

- (23) drill, - (24) final section of the belt (10),

(25) cleft of the final section (24),

(26) wings of the final section (24),

- (27) holes in the case (11),

(29a-29b) flat surfaces of the cam (13), - (30) holes of the plates (17), and (31) flat surface of the sheath (11).

Figure n-1 is a bottom plan view of the nail assembly (15) mounted on the final section (24) of the belt (10) in its working position of 0 ² , with the sheath (11) and the plates ( 17) also mounted. Figure n ² 2 is a top plan view of the pawl assembly (15) mounted on the end section (24) of the tape (10) in its working position 0 ^2, with the cover (11) and the platens ( 17) also mounted. Figure n ² 3 is a rear elevational view of the nail assembly (15) mounted on the final section (24) of the belt (10) in its working position from 0 ^to , with the sheath (11) and the plates ( 17) also mounted.

Figure ² is a front elevational view of the nail assembly (15) mounted on the final section (24) of the belt (10) in its working position from 0 ^to , with the sheath (11) and the plates ( 17) also mounted.

Figure ² is a side view of the nail assembly (15) mounted on the final section (24) of the belt (10) in its working position of 0 ² , with the sheath (11) and the plates (17) also mounted.

Figure ² is a perspective view of the nail assembly (15) mounted on the final section (24) of the belt (10) in its working position of 0 ² , with the sheath (11) and the plates (17 ) also mounted.

Figure ² 7 is a side view of the final section (24) of the tape (10).

Figure n ² 8 is a front elevational view of the final section (24) of the belt (10). Figure n ² 9 is a top plan view of the final section (24) of the belt (10).

Figure ² is a perspective view of the final section (24) of the tape (10).

Figure n ² 11 is a bottom plan view of the cover (11) formed by a central part (lia) and two wings (llb). Figure n ² 12 is a top plan view of the sheath (11) formed by a central part (lia) and two wings (llb).

Figure n ² 13 is a front elevation view of the sheath (11) formed by a central part (lia) and wings (Hb).

Figure n ^s 14 is a perspective view of the cover (11) formed by a central part (lia) and wings (Hb). Figure n ² 15 is a front elevation view of the nail assembly (15), formed by the nail itself (15a) and a cylindrical part cut by two planes (29a-29b) that acts as a cam (13) and that extends by one of its extremities in the cabot (14). Figure ² 16 is a top plan view of the nail assembly (15).

Figure n ^to 17 is a side elevation view of the nail assembly (15).

Figure n ² 18 is a sectional view of the nail assembly (15), according to AA by figure n ^≤ 17.

Figure ² 19 is a perspective view of the nail assembly (15).

Figure n ^to 20 is a side elevational view of the plates (17) that are incorporated into the belt (10) at its rear.

Figure n ² 21 is a front elevation view of the plates (17).

Figure ² 22 is a perspective view of the plates (17). Figure ² 23 is a front elevational view of a rivet (12) that joins the sheath (11) to the tape (10) by one of its ends. Figure n ^Ξ 24 is a sectional view of a rivet (12) cut in half crosswise.

Figure ² is a perspective view of a rivet (12). In one of the preferred embodiments of what is the object of the present invention and as can be seen in Figure n ^to 1-6, the tape (10) incorporates an improved nail assembly (15) formed by the nail (15a ) and cam (13), on which (15) a cover (11) is incorporated. Said cover (11) has a substantially semi-cylindrical central area (lia) that extends outward according to wings (llb), affected on its upper surface by measuring stripes (22), and holes (27) where the screws or rivets (12) hold it to the upper face of the measuring tape (10). The nail assembly (15) is mounted prisoner between the central area (lia) of the sheath (11) and the upper face of the tape (10), so that it is secured but without thereby preventing rotation of the cam assembly (fifteen) . The nail assembly (15) is formed by a vertical portion (15a) whose function is to make a stop with the surface to be measured, from whose rear face (16) a substantially cylindrical body or cam (13) emerges perpendicularly, said cam (13) attached at its other end to a cabot (14), see figure n ² 15-19. The cam (13) has a substantially cylindrical body, but in its upper and lower part two planes (29a-29b) are formed that cut the cylindrical portion longitudinally by the upper and lower part. The cabot (19) arranged in the final part of the nail assembly (15) has a cylindrical configuration of greater diameter than the diameter of the cam (13) and of low thickness. The Said cabota (14) has the double mission of keeping the nail (15) attached to the final section (24) of the belt (10) through the partial introduction of the same in the hole (23) provided in the tape (10) ) with a certain clearance, and on the other hand to make a stop for the back surface of the cover (11).

As can be seen in Figure 1-6, the pawl (15) is in its working position 0 ^to, but can perform a 180 ^to, since the clearance existing between the central portion (lia) of the sheath (11) and the upper face of the tape (10) with respect to the cam (13) allows the turning movement of the entire nail assembly (15) to be achieved, until a stable position is reached. In addition, as can be seen in Figure n ^to 7-10, the final section (24) of the tape (10) has collision through holes (18) that contribute to the fixing of the nail assembly (15) in one of Your two fixed positions. The final section (24) of the belt (10), which has a concave profile surface, apart from presenting the collision holes (18) adapted to allow the rivets (12) to pass, also incorporates another through hole (23 ) in a position further away from the end of the belt (10) adapted so that the lower part of the cabot (14) is partially inserted therein and thus enable the movement of the nail assembly (15) forward and backward.

The end edge of said end section (24) is provided with a groove (25) in the central part, so that the two portions or wings (26) that remain on the sides when the assembly is mounted rest against the rear face ( 16) of the vertical portion (15a). As can be seen in figure ² 11-14, the cover

(11) has a surface formed by a central section of substantially ribbed configuration (lia), which extends laterally forming two wings (llb) that extend slightly inclined upwards. Said corrugated central portion (lia) has a flat surface (31) in its central section, so that said flat surface (31) is arranged just on one of the flat surfaces (29a) or (29b) of the cam (13) and immobilize the nail assembly (15) in one position or another, corresponding to the positions of 0 and 180 ² .

Through holes (27) are incorporated in both wings (Hb) of the sheath (11), which allow the sheath (11) to be fixed with the final section (24) of the belt (10) and with the plates (17) by rivets (12), all this allowing the nail assembly (15) to perform the turning movement on itself.

The front face of the sheath (11) is provided with a plurality of measuring stripes (22), specifically at the extreme edge of the two wings (Hb). However, the back side is not etched with stripes.

Figure n ^to 20-22 shows one of the two plates (17), of rectangular configuration, with blunt edges, and low thickness, provided with through holes (30) adapted to pass the screws or rivets (12). Said screws or rivets (12), as shown in Figure ² 23-25, have a stepped section formed by two cylindrical portions (20-21) growing upwards and in the upper part a cab (19) that prevents that the nail assembly (15) can move freely and thus ensure its position in the working position, either the position of 0 ^a or 180 ² . Described sufficiently the present invention in correspondence with the attached figures, it is easy to understand that any modifications of detail that are deemed convenient may be introduced therein as long as they do not alter the essential characteristics thereof, which is summarized in the following claims.

Claims

R E I V I N D I C A C I O N E S:

I ^a - "PERFECTED FLEXOMETER OF ROTATING NAIL" of which are formed by a case or casing inside which is a rotating reel in which a tape is wound whose end appears through a mouth of the case, which has joined a nail, the tape (10) being graphed by a metric scale on one or both sides by means of stripes (22), characterized in that the nail (15a) is joined in solidarity by its rear face (16) to a cam (13), of substantially cylindrical configuration affected both by its upper and lower part by a flat surface (29a-29b), and said cam (13) mounted on the central area of the concave upper face of the end (24) of the belt (10 ) with one of its flat surfaces (29a) or (29b) resting on the upper face of the belt (10), with means for retaining the nail-cam assembly (15) that are mounted on the cam (13) and the partially or totally cover and allow 360 ^s rotation of the co njoint-cam (15) with respect to the belt (10) and its interlocking in two fixed working positions: 0 ^a and 180 ² , and providing fastening means adapted to hold the retention means and the nail assembly together cam (15) with the final section (24) of the tape (10).

2 ^a _ ^« PERFECTED ROTATING NAIL FLEXOMETER" according to the first claim, characterized in that the retention means are formed by a sheath (11) that is mounted on the cam (13), said sheath (11) formed by a central section (lia) of substantially ribbed configuration, which extends laterally forming two wings (llb) arranged slightly inclined upwards, said central portion (Ha) having a flat surface (31) in its central section adapted so that said flat surface (31) is arranged just on one of the flat surfaces (29a) or (29b ) of the cam (13) and immobilize the nail assembly (15) in this position.

3 ^a _ "PERFECTED ROTATING NAIL FLEXOMETER" according to the first claim, characterized in that the fastening means are formed by plates (17) that are mounted at the same height as the sheath (11) but on the rear face of the tape (10), both pieces, sheath (11) and plates (17), equipped with through holes (27) and (30) to receive screws or rivets (12), which pass through the tape (10), presenting the final section (24) of the tape (10) holes (18) adapted to receive said screws or rivets (12).

4 ^a _ "PERFECTED FLEXOMETER OF ROTATING NAIL" according to the preceding claim, characterized in that two plates (17), of rectangular configuration, of blunt edges, and low thickness are mounted.

5 ^a _ "PERFECTED ROTATING NAIL FLEXOMETER" according to the third claim, characterized in that the screws or rivets (12) have a stepped section formed by two cylindrical portions (20-21), the upper one (20) of greater diameter than the lower (21), and above the upper portion (20) a cabot (19) is arranged.

6s _ ^« PERFECTED ROTATING NAIL FLEXOMETER" according to the third claim, characterized in that the holes (18) provided in the final section (24) of the belt (10) are coliserous. 7 ^a _ ^« PERFECTED ROTATING NAIL FLEXOMETER" according to the first claim, characterized in that the end edge of the final section (24) of the tape (10) is provided with a groove (25) in the central part, so that a Once the assembly is mounted, the two portions or wings (26) that remain on the sides rest against the rear face (16) of the vertical portion (15a).

8 ^a _ "PERFECTED ROTATING NAIL FLEXOMETER" according to the first claim, characterized in that so that the nail-cam assembly (15) can move forward or backward for the measurement of interiors or exteriors a cabin (14) is incorporated in the final end of the cam (13), with a diameter slightly larger than the diameter of the cam (13), and the end (24) of the tape (10) is provided with a hole (23) adapted so that the said cabot (14) protrudes slightly below the belt (10), said hole (23) with a length greater than the thickness of the cabot (14). 9 ^a - "PERFECTED ROTATING NAIL FLEXOMETER" according to the eighth claim, characterized in that the hole (23) of the final section (24) of the belt (10) has a length equal to the sum of the thickness of the cabot (14) and the thickness of the nail (15a). 10- - "PERFECTED FLEXOMETER OF ROTATING NAIL" according to the first claim, characterized in that the retention means are provided on their front part with measuring strips (22) adapted to ensure greater measurement accuracy.