Headlamp strip

Abstract

Headlamp headband comprising: a front part comprising a headband element (210) with two terminations (210, 220) each having a vertical through hole (211, 221) for the sliding passage of an elastic tightening tie (230), a rear part comprising a support (240) and a locking lever (260), said support (240) having two fixing points and in addition two through holes to ensure the passage of the tightening tie (230) which can be locked by said locking lever (260); an electrical conductor cord (270) having two radii of curvature (271, 272) so as to form a "Z"; two movable clips (280, 290) positioned at the first and second radii of curvature (271, 272) to ensure sliding of said electrical conductor cord (270) with the upper and lower parts of said elastic tightening tie (230).

Description

Technical field of the invention

[0001] The present invention relates to the field of headlamps and in particular a headband for a headlamp. State of the art

[0002] There are many different types of headlamp straps. The rise of the latest headlamps has led to the development of particularly sophisticated straps to hold not only the headlamp located at the front of the user's head, but also the large battery located at the back, which provides the lamp with power.

[0003] There Figure 1shows an example of a well-known solution used for a high-power lamp marketed by the Applicant of the present patent application. It shows a headband comprising two parts, namely a first part 110 located at the front, on which a headlamp housing 100 is fixed, and a second part located at the rear. The second part comprises a support 140 for holding an electric battery 150, and a link 130a / 130b for making the junction between the front part 110 and the support 140 of the rear part. A locking device 170 makes it possible to adjustably block the link to ensure the assembly can be adjusted to various head shapes and even a helmet.The electrical connection between the battery 150 and the headlamp housing 100 is made by means of an electrical conductor 160 which, to ensure various adjustment configurations, is in the form of a twist or a spiral 160 allowing the headband to be stretched when the latter must be fixed on a large head, or even a safety helmet.

[0004] It was found that the known solution of the Figure 1 has a number of disadvantages.

[0005] Firstly, significant discomfort was noted due to the tension of the spring 160 - the restoring force of which is necessary to ensure minimal aesthetic maintenance of the electrical conductor - and which pulls on one side of the headband. This restoring force is very clearly perceived as a discomfort by the wearer of the lamp, who must also refocus it at regular intervals when engaging in an intense activity such as running.

[0006] Second, as seen in the figure, the spring or spiral 160 is relatively large and bulky and is detrimental not only to the aesthetics of the entire headband, but also to its compactness.

[0007] Generally speaking, we are looking for a support solution that is more discreet, more comfortable and more elegant, while ensuring the headband can be adjusted to fit a wide variety of heads and even a safety helmet.

[0008] This is the problem to be solved by the present invention. The following references correspond to general background prior art which was filed by the applicant of the present invention: US D677816 is a registered design of a headlamp comprising a lamp in the front part connected to a battery located in the rear part. EP2481981 describes a patent application relating to the aforementioned design, namely a portable electric lighting lamp, with improved attachment. EP2505907 describes a portable electric lighting lamp comprising a power and communication connector. US D828599 is a registered design of a headlamp. EP3674596 describes a balancing device improving the hold on the head of a headlamp. Statement of the invention

[0009] The present invention aims to propose a new headband structure intended for holding a headlamp, ensuring the electrical connection between a headlamp housing located at the front and a power battery located at the rear while reducing the tension effect of the electric cable perceptible by the user.

[0010] Another object of the present invention is to provide a headlamp structure that is compact, and that allows adjustment to different head sizes and even a safety helmet.

[0011] It is another object of the present invention to provide a headlamp headband structure having two parts, respectively front and rear, attached by an adjustment link.

[0012] The invention achieves these aims by means of a novel headlamp headband structure comprising a front portion and a rear portion.

[0013] The front portion comprises a strip element configured for attaching a lamp body and comprising two terminations each having a vertical through hole or conduit configured for the sliding passage of an elastic tightening tie. One termination further comprises a first projecting attachment clip for providing a horizontal sliding connection with an electrically conductive cord.

[0014] The rear part comprises a support intended for holding an electric battery as well as a locking lever. The support comprises at its base two fixing points, respectively left and right, for the two ends of the elastic tightening tie and further comprising, in its upper part, two pass-through holes for the passage of the tightening tie which can be locked by means of a locking device or lever (260).

[0015] According to the invention, the tightening tie is configured to pass successively from the left fixing point of the base of the support, to then run towards a vertical conduit of a first end of the front part, exit and join the upper left passing hole of the support to form an adjustable loop there and which can be blocked by the locking lever. On the right, the elastic tightening tie comes out through the upper right passing hole of the support to join the vertical sliding conduit of a second end of the front part, and then join the right fixing on the base of the support.

[0016] The banner also includes: an electrical conductor which has two radii of curvature so as to form a “Z”; a first movable clip positioned at the first radius of curvature to ensure sliding of the electrical conductor cord with the upper part of the elastic tightening tie; a second movable clip positioned at the second radius of curvature to allow sliding of said electrical conductor cord with the lower part of the elastic tightening tie.

[0017] In a particular embodiment, a termination of the front portion provides a double sliding connection, perpendicular to each other, for the electrical cord and the elastic tightening link.

[0018] Preferably, the two ends are preferably made by overmolding or by sewing on the elastic band element which forms the first part.

[0019] In a particular embodiment, the left and right ends of the front part have the shape of a substantially square or rectangular loop, one hollow vertical side of which serves as a passage conduit for vertical sliding of the elastic tightening link. Description of the drawings

[0020] Other characteristics, aims and advantages of the invention will appear on reading the description and the drawings below, given solely as non-limiting examples. In the attached drawings: There Figure 1 illustrates a state-of-the-art headlamp allowing electrical connection between a lamp housing located at the front and a power supply battery located at the rear. The Figure 2 illustrates a rear perspective of an embodiment of a headlamp strip in accordance with the present invention. Figure 3 shows a left view of the embodiment of the Figure 2, in minimal development configuration. The Figure 4 shows a left view of the embodiment of the Figure 2 in maximum development configuration. The Figure 5 illustrates more particularly the detail of the clip 290 allowing the cooperation of the electrical conductive cord 270 and the elastic link 230. The Figure 6 illustrates more particularly the detail of the clip 290 allowing the cooperation of the electrical conductive cord 270 and the elastic link 230. The Figure 7 illustrates the detail of the terminal part 210 allowing the sliding of the electrical conductive cord 270. The figure 8 illustrates the detail of the locking lever 260 located on the support at the rear of the headband. Description of a preferred embodiment

[0021] There Figure 2 illustrates a left rear perspective of a preferred embodiment of a support band according to the present invention, and which illustrates the various constituent elements thereof. Figures 3 and 4 illustrate left views following two positions of development of the electrical conductive cord.

[0022] As seen in the Figure 2 , the headband comprises a front part 205 and a rear part 240, connected to each other by means of an elastic tightening link 230.

[0023] The front part 205 is in the form of a headband element, made of textile, plastic or any other suitable material, preferably elastic, onto which a lamp body 200 will be fixed. Different fixing methods may be envisaged to ensure the maintenance of the lamp body 200 on the element 205 which it is not necessary to detail here for the sake of brevity. It is sufficient to mention, for example, the possibility of providing two loops in the lamp body 200 for the passage of the elastic headband so as to ensure a sliding connection of the lamp body 200 on the headband element 210. But, clearly, other embodiments are possible and conceivable.

[0024] The strip element 205 comprises two ends, respectively left and right, to which are fixed, preferably by overmolding or sewing, two plastic terminations 210 and 220 each having a through hole or vertical conduit, respectively 211 and 221, intended for the sliding passage of the elastic tightening link 230. Preferably, the plastic terminations 210 and 220 have the shape of a substantially square or rectangular loop, one hollow vertical side of which serves as a passage conduit 211 / 221 for vertical sliding of the elastic tightening link 230.

[0025] Moreover, as seen on the figures 2 And 3 , the plastic termination 210 further comprises a first attachment clip 215, arranged protruding, and which ensures a horizontal sliding connection with an electrically conductive cord 270. The detail of the termination 210 is illustrated in the Figure 7 and will be described later.

[0026] This specific arrangement already makes it possible to see that a double sliding connection is thus produced at the level of the termination 210, perpendicular to each other for the electric cord 270 (horizontal sliding) and the tightening link 230 (vertical sliding).

[0027] The rear portion 240 of the headband consists of a support of substantially symmetrical shape in the median sagittal plane, and configured to match the rear shape of a user's head. Preferably, the support of the rear portion 240 is in the form of a triangle having a base provided with two attachment points, respectively left and right, for the two ends of the elastic tightening link 230. The Figure 3illustrates more particularly the left attachment point 241 of the tightening tie 230, the right attachment point not being visible in the figure. The base of the rear part 240 also includes a projection allowing the attachment of a battery body 250 connected to the electric cord 270 via a connector 242. On the upper part of the support of the rear part 240, two through holes are provided, respectively left and right, to ensure the passage of the tightening tie 230 cooperating with a vertical locking lever 260 allowing simultaneous locking on both the left and right sides of the tightening tie 230. figure 8 illustrates in more detail the rear support 240 and its locking lever 260.

[0028] As can be seen, the tightening possibilities of the proposed headband are significant due to the specific, new and particularly advantageous path of the elastic tightening link 230, which passes successively from the left fixing point 241 on the base of the support of the rear part 240, to then run towards the left vertical sliding conduit 211 of the loop 210, exit from it and join the upper left passing hole of the support of the rear part 240 to form an adjustable loop there, as appears in the figure 8 , and lockable by the locking lever 260 and, on the right side, to exit through the upper right-hand passing hole of the support of the rear part 240, and to join the vertical sliding conduit 221 of the termination 220 to then join the right fixing on the base of the support of the rear part 240.

[0029] Such a path of the elastic tightening link 230 allows a particularly effective and comfortable hold on the head of a user since it leads to the appearance of a double tightening loop, respectively lower and upper, which can be tightened by means of a single locking lever 260.

[0030] Furthermore, to make the electrical connection of the battery 250 to the lamp body 200, an electrical conductive cord 270 of very specific shape is provided with two radii of curvature, respectively 271 and 272, falling within a sagittal plane of the user so as to form a “Z” and cooperating advantageously with the path of the tightening tie 230.

[0031] For this purpose, two movable clips 280 and 290 are provided allowing a sliding connection between the electrically conductive cord 270 and the elastic clamping link 230. The movable clip 280 is positioned at the first radius of curvature 271 to ensure sliding with the upper part of the elastic clamping link 230, while the movable clip 290 is positioned at the second radius of curvature 272 to allow sliding with the lower part of the elastic clamping link 230.

[0032] The detail of one embodiment of the movable clip 290 is illustrated in the Figure 5 , while the Figure 6 shows an embodiment of the mobile clip 280 allowing the cooperation of the electrical conductive cord 270 with the elastic link 230.

[0033] The result is a sophisticated arrangement that elegantly ensures high efficiency in maintaining the headband.

[0034] In summary, starting from the lamp body 200 to the battery 250, the following connections of the electrical conductor cord 270 are noted: the connector 201 for the electrical connection of the lamp body 200; a first sliding connection at the first attachment clip 215, located projecting from the termination 210; a second sliding connection at the second clip 280, close to the first radius of curvature, ensuring a double sliding connection with the upper part of the elastic tightening link 230 running towards the upper left hole of the support; a third sliding connection at the third clip 290, close to the second radius of curvature, ensuring a double sliding connection with the lower part of the elastic tightening link 230 coming from the fixing point 241 of the support. the second connector 242 allowing the electrical connection to the battery.

[0035] These sliding connections cooperate with the sliding possibilities of the elastic tightening link 230 to ultimately allow vast adjustment possibilities, as shown in the figures 2 And 3 showing two distinct development configurations, respectively minimal and maximal.

[0036] It will be noted in particular, and advantageously, that the first termination 210 provides a double sliding connection, perpendicular to each other, at the level of the electrical cord 270 and the tightening link 230a / 230b. Indeed, the attachment clip 215 allows a substantially horizontal sliding of the electrical cord 270 while the through holes of the loop 210 ensure a vertical sliding.

[0037] In a preferred embodiment, the electric battery can be connected to the support of the rear part 240 by means of a micro-USB type connector.

Claims

1. Headband for a headlamp which includes: a front part (205) comprising a headband element configured to receive a lamp body (200), and comprising two terminations (210, 220), wherein each termination (210, 220) comprises a passing hole or vertical conduit (211, 221) configured for the sliding passage of a tightening elastic link (230) and a first attachment clip (215) projecting to make a horizontal sliding connection with an electrically conductive cord (270), a rear part (240) comprising a support intended to hold an electric battery (250) and a locking lever (260), wherein the support of said rear part (240) comprises at its base two attachment points - respectively left and right - for two ends of said tightening elastic link (230) and further comprising two through holes in its upper part to ensure the passage of said tightening elastic link (230) which can be blocked by said locking lever (260); said tightening elastic link (230) being configured to pass successively from said left attachment point (241) on the base of the support of said rear part (240), to then run towards said vertical conduit (211) of a first termination (210) to come out of it and go to join the upper left through hole of said support to form therein an adjustable and lockable loop which can be locked by said locking lever (260), wherein said tightening elastic link (230) comes out through the upper right through hole of said support, to join the vertical sliding conduit (221) of a second termination (220) and then join the right attachment on the base of the support;. an electrical conductor cord (270); characterized in that the electrical conductor cord (270) has two radii of curvature (271, 272) so as to form a "Z"; a first movable clip (280) positioned at the first radius of curvature (271) to ensure sliding of said electrically conductive cord (270) with the upper part of said tightening elastic link (230); a second movable clip (290) positioned at the level of the second radius of curvature (272) to allow said electrically conductive cord (270) to slide with the lower part of said tightening elastic link (230).

2. The headlamp headband according to claim 1 characterized in that a termination (210) provides a double sliding connection, perpendicular to each other, for the electrical cord (270) and said tightening elastic link (230).

3. The headlamp headband according to claim 1 or 2 characterized in that said two terminations (210,220) are preferably made by molding or by sewing on the elastic headband forming said front part.

4. The headlamp headband according to claim 1 wherein said terminations (210, 220) have the shape of a substantially square or rectangular loop, one hollow vertical side of which serves as a passage conduit (211, 221) for vertical sliding of said tightening elastic link (230).

5. The headlamp headband according to claim 1 wherein the support of the rear part (240) is in the form of a triangle having a base provided with two attachment points, respectively left and right, for the two ends of said tightening elastic link (230).

6. The headlamp headband according to claim 1 wherein the lamp body (200) is pivotally attached to the headband.

7. The headlamp headband according to claim 1 wherein the lamp body (200) has two through holes for the passage of the headband element.

8. The headlamp headband according to claim 1 wherein said support of the rear part (240) comprises a Micro-USB type connector for connecting the electric battery.

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