Manual device for applying a coating to a support by means of tape

Abstract

A manual device for applying a coating to a support by means of tape, in which a first angle formed between the median plane of the applicator tip and the half-line extending from the middle of the application edge of the applicator tip and passing through the point arranged at the intersection of the outer periphery of the first winding and the radius of the first winding perpendicular to the median plane, is between −1° and 10°, whereas a second angle formed between the median plane and the half-line extending from the middle of the application edge and passing through the point arranged at the intersection of the outer periphery of the second winding and the radius of the second winding perpendicular to the median plane, is between 1° and 10°.

Claims

1. A manual device for applying a coating to a support by tape comprising a supply reel mounted on a first bearing and comprising a first tape winding, a take-up reel mounted on a second bearing and comprising a second tape winding, and an applicator tip to apply the coating carried by the tape onto a support, the applicator tip extending in a longitudinal direction and having an application edge, the application edge and the longitudinal direction defining an application plane while a plane perpendicular to the application plane and extending in the longitudinal direction and passing through a middle of the application edge forms a median plane of the applicator tip, in which an angle between axes of each of the first and second bearings and the application plane is greater than or equal to 30 degrees, wherein the first bearing and the second bearing are arranged on either side of the median plane of the applicator tip and, are considered projecting into the application plane, a first angle formed between the median plane and a half-line extending from the middle of the application edge and passing through a point arranged at an intersection of the outer periphery of the first winding and a radius of the first winding perpendicular to the median plane, is between −1 and 10 degrees whereas a second angle formed between the median plane and a half-line extending from the middle of the application edge and passing through a point arranged at the intersection of the outer periphery of the second winding and a radius of the second winding perpendicular to the median plane, is between 1 and 10 degrees, wherein the tape cooperates only with the supply reel, the take-up reel and the applicator tip.

2. A manual device for applying a coating to a support by tape according to claim 1, wherein the applicator tip comprises a guide portion having a first twisted surface and a second twisted surface, the first twisted surface cooperating with the tape downstream of the supply reel and upstream of the application edge while the second twisted surface cooperates with the tape downstream of the application edge and upstream of the take-up reel, the tape being configured to travel from upstream to downstream within the manual device.

3. A manual device for applying a coating to a support by tape according to claim 1, wherein the first bearing and the second bearing are offset in relation to one another in the longitudinal direction.

4. A manual device for applying a coating to a support by tape according to claim 3, wherein, considered in the longitudinal direction, the second bearing is arranged between the applicator tip and the first bearing.

5. A manual device for applying a coating to a support by tape according to claim 1, wherein the first winding and the second winding are offset in relation to one another in a direction perpendicular to the application plane.

6. A manual device for applying a coating to a support by tape according to claim 2, wherein the first winding is offset in relation to the second winding on the side of the first twisted surface whereas the second winding is offset in relation to the first winding on the side of the second twisted surface.

7. A manual device for applying a coating to a support by tape comprising a supply reel mounted on a first bearing and comprising a first tape winding, a take-up reel mounted on a second bearing and comprising a second tape winding, and an applicator tip to apply the coating carried by the tape onto a support, the applicator tip extending in a longitudinal direction and having an application edge, the application edge and the longitudinal direction defining an application plane while a plane perpendicular to the application plane and extending in the longitudinal direction and passing through a middle of the application edge forms a median plane of the applicator tip, wherein the first bearing and the second bearing are arranged on either side of the median plane of the applicator tip and, are considered projecting into the application plane, a first angle formed between the median plane and a half-line extending from the middle of the application edge and passing through a point arranged at an intersection of the outer periphery of the first winding and a radius of the first winding perpendicular to the median plane, is between −1 and 10 degrees whereas a second angle formed between the median plane and a half-line extending from the middle of the application edge and passing through a point arranged at the intersection of the outer periphery of the second winding and a radius of the second winding perpendicular to the median plane, is between 1 and 10 degrees, wherein the tape cooperates only with the supply reel, the take-up reel and the applicator tip.

8. A manual device according to claim 7, wherein the applicator tip comprises a guide portion having a first twisted surface and a second twisted surface, the first twisted surface cooperating with the tape downstream of the supply reel and upstream of the application edge while the second twisted surface cooperates with the tape downstream of the application edge and upstream of the take-up reel, the tape being configured to travel from upstream to downstream within the manual device.

9. A manual device according to claim 7, wherein the first bearing and the second bearing are offset in relation to one another in the longitudinal direction.

10. A manual device according to claim 9, wherein, considered in the longitudinal direction, the second bearing is arranged between the applicator tip and the first bearing.

11. A manual device according to claim 7, wherein the first winding and the second winding are offset in relation to one another in a direction perpendicular to the application plane.

12. A manual device according to claim 8, wherein the first winding is offset in relation to the second winding on the side of the first twisted surface whereas the second winding is offset in relation to the first winding on the side of the second twisted surface.

13. A device, comprising: a first reel coupled to a first bearing and comprising a first tape winding; a second reel coupled to a second bearing and comprising a second tape winding; and an applicator tip configured to apply a coating carried by a tape onto a support, the applicator tip extends in a first direction and has an edge that each defines an application plane; the applicator tip further includes a median plane that is perpendicular to the application plane, extends in the first direction, and passes through a middle portion of the edge; wherein the first bearing and the second bearing are arranged on either side of the median plane and project into the application plane; wherein a first angle formed between the median plane and a line that extends from the middle portion of the edge, and that passes through a point arranged at an intersection of a periphery of the first tape winding and a radius of the first tape winding perpendicular to the median plane, is between −1 and 10 degrees; and wherein a second angle formed between the median plane and a line that extends from the middle portion of the edge, and that passes through a point arranged at an intersection of a periphery of the second tape winding and a radius of the second tape winding perpendicular to the median plane, is between 1 and 10 degrees, wherein the tape cooperates only with the first reel, the second reel and the applicator tip.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) A better understanding of the disclosure will emerge more clearly from the following detailed description of various embodiments given by way of non-limiting examples. This description refers to the pages of accompanying Figures, in which:

(2) FIG. 1 shows a manual device for applying a coating to a support by means of tape, seen in perspective, with the case open,

(3) FIGS. 2A and 2B show the manual device seen along Arrow II in FIG. 1, according to the two different states of the windings of tape,

(4) FIG. 3 shows the manual device, without the case, seen along Arrow III in FIG. 1,

(5) FIG. 4 shows the applicator tip of the manual device in FIG. 1, seen in perspective, and

(6) FIGS. 5A and 5B show the path travelled by the tape from the first winding to the second winding, within the manual device shown in FIG. 1.

DETAILED DESCRIPTION

(7) FIG. 1 shows a manual device 10 for applying a coating to a support by means of tape comprising a case having, in this embodiment, a first part of the case 12A and a second part of the case 12B, the case receiving a supply reel 14 mounted on a first bearing 16 and comprising a first winding of tape 18, a take-up reel 20 mounted on a second bearing 22 and comprising a second winding of tape 24 and an applicator tip 26. In this embodiment, the supply reel 14 and take-up reel 20 are coupled in rotation by a band 30, but clearly any other means of coupling these two reels in rotation can be envisaged. Similarly, in this embodiment the bearings 16 and 22 are formed by spindles integral with the first part of the case 12A, but any other configuration can be envisaged. For example, the bearings can be integral with a refill cartridge, forming a distinct piece of the case.

(8) The applicator tip 26 has an application edge 26A and a guide portion 26B. The tape 28 extends, from upstream to downstream, from the first winding 18 (or supply reel 14) to the application edge 26A, rounds the application edge 26A and then extends from the application edge 26A to the second winding 24 (or take-up reel 20). The arrows in FIG. 5B are oriented from upstream to downstream and indicate the direction of travel of the tape 28. In this embodiment, the tape 28 cooperates only with the supply reel 14, the applicator tip 26 and the take-up reel 20.

(9) The tape 28 has a coating 19 upstream of the application edge 26A. As the application edge 26A allows the coating 19 to be deposited on a support (not shown), the tape 28 no longer has any coating 19 downstream of the application edge 26A. Clearly, the tape 28 downstream of the application edge 26A can in certain cases have a coating, for example because the tape 28 has travelled without application, or because there is a fault during application.

(10) The applicator tip 26 extends in a longitudinal direction X. The longitudinal direction X and the application edge 26A (which is straight) define the application plane P1. In other words, the application plane P1 comprises the application edge 26A and extends in the longitudinal direction X. The plane P2 is perpendicular to the application plane P1, extends in the longitudinal direction X and passes through the middle M of the application edge 26A. This plane P2 forms the median plane of the applicator tip 26.

(11) With reference to FIGS. 4, 5A and 5B, the guide portion 26B of the applicator tip 26 has a first twisted surface 26B1 and a second twisted surface 26B2. The first twisted surface 26B1 cooperates with the tape 28 downstream of the first winding 18 and upstream of the application edge 26A. The second twisted surface 26B2 cooperates with the tape 28 downstream of the application edge 26A and upstream of the second winding 24. In this embodiment, the twisted surfaces 26B2 and 26B1 are substantially parallel and formed by two opposing faces of one and the same element. More particularly, the guide portion 26B is formed in this embodiment by a blade extending in the longitudinal direction X and twisted about the longitudinal direction X. In this embodiment, the pitch of the twist is 2.5°/cm (two and five tenths degrees of angle per centimeter). Moreover, the width of the guide portion is approximately equal to 135% of the width of the tape 28. This enables maximum accompaniment of the tape within the applicator tip when there are variations in diameter of the windings during the lifetime of the product.

(12) As shown in FIG. 3, in this embodiment, the axes A1 and A2 of the first and second bearings 16 and 22 are perpendicular to the application plane P1. In other words, the axes A1 and A2 each form an angle with the application plane P1 greater than or equal to 30°. As the windings 18 and 24, the reels 14 and 22 and the bearings 16 and 22 are respectively coaxial, the tape 18 thus undergoes in this embodiment a twisting movement of 90° from the first winding 18 to the application edge 26A. Similarly, the tape 18 undergoes a twisting movement of 90° from the application edge 26A to the second winding (see FIGS. 5A and 5B).

(13) The middles M16 and M22 of the first and second bearings 16 and 22 in the direction of the axes A1 and A2 and projecting into axes A1 and A2 respectively are arranged on either side of the median plane P2. Thus, the first and second bearings 16 and 22 are arranged on either side of the median plane P2. This can also be seen in FIGS. 2A and 2B. Moreover, with reference to FIGS. 2A and 2B, the middles M16 and M22 are offset in relation to one another in the longitudinal direction X. Thus, the first and second bearings 16 and 22 are offset in relation to one another in the longitudinal direction X. More particularly, in this embodiment, the second bearing 22 is arranged, in the longitudinal direction X, between the applicator tip 26 and the first bearing 16.

(14) With reference to FIG. 3, the middles M18 and M24 of the first and second windings 18 and 24 in the direction of the axis A1 and A2 of each of the windings 18 and 24 (the axes of the windings being aligned with the axes of the corresponding bearings and reels respectively) projecting into the axis of each winding, respectively, are offset in relation to one another in the direction Y perpendicular to the application plane P1. Thus, the first winding 18 and the second winding 24 are offset in relation to one another in the direction Y perpendicular to the application plane P1. More particularly, in this embodiment, the first winding 18 is offset in relation to the second winding 24 on the side of the first twisted surface 26B1 of the tip 26 while the second winding 24 is offset in relation to the first winding 18 on the side of the second twisted surface 26B2 of the tip 26.

(15) FIGS. 2A and 2B each represent a projection view on the application plane P1. In FIG. 2A, the manual device 10 is new, so that the first winding 18 has a maximum outer diameter while the second winding 24 has a minimum outer diameter. Conversely, in FIG. 2B, the manual device 10 is totally used up, so that the first winding 18 has a minimum outer diameter while the second winding 24 has a maximum outer diameter.

(16) The first angle α1 is formed between the median plane P2 and the half-line D1 extending from the first middle M of the application edge 26A and passing through the point P18 arranged at the intersection of the outer periphery of the first winding 18 and the radius R18 of the first winding 18 perpendicular to the median plane P2. The second angle α2 is the angle between the median plane P2 and the half-line D2 extending from the middle M of the application edge 26A and passing through the point P24 arranged at the intersection of the outer periphery of the second winding 24 and the radius R24 of the second winding 24 perpendicular to the median plane P2. As can be seen in FIG. 3, the middle is taken in the direction of the axis of the windings 18 and 24 (i.e. the middle of the width L of the windings/tape) as the reference plane in order to choose points P18 and P24 on the outer periphery of the first and second windings 18 and 24.

(17) In FIG. 2A, the half-line D1 extends from the side opposite to the first bearing 16 (that is to say, to point M16) in relation to the median plane P2. Consequently, the measurement of the angle α1 in FIG. 2A is negative. Conversely, in FIG. 2B, the half-line D1 extends from the same side as the first bearing 16 in relation to the median plane P2. Consequently, the measurement of the angle α1 in FIG. 2B is positive. In this embodiment, the half-line D2 is always arranged on the same side as the second bearing 22 (that is to say as point M22) in relation to the median plane P2, so that its measurement is always positive.

(18) In this embodiment, in FIG. 2A, first winding 18 full, α1=−0.4° (minus four tenths of a degree of angle) whereas in FIG. 2B, first winding 18 empty, α1=8° (eight degrees of angle). Thus, the first angle α1 is always between −1° and 10°, whatever the state of the first winding 18 (i.e. full, empty or in an intermediate state between empty and full). In this embodiment, in FIG. 2A, second winding 24 empty, α2=6° (six degrees of angle) whereas in FIG. 2B, second winding 24 full, α2=1.4° (one and four tenths of a degree of angle). Thus, the second angle α2 is always between 1° and 10°, whatever the state of the second winding 24 (i.e. full, empty or in an intermediate state between empty and full). Thus, the tape 18 constantly has a certain alignment in the longitudinal direction X with the applicator tip 26.

(19) Although the present disclosure has been described with reference to specific embodiments, it is obvious that modifications and changes can be made to these embodiments without departing from the general scope as defined by the claims. In particular, individual characteristics of the various embodiments shown/mentioned can be combined in additional embodiments. Consequently, the description and drawings must be considered in an illustrative rather than a restrictive sense.