WO2012140288A1

WO2012140288A1 - Mechanism for replacing a lamp and street light that includes said mechanism

Info

Publication number: WO2012140288A1
Application number: PCT/ES2012/000090
Authority: WO
Inventors: Bruno CHANCOSA SPACEK
Original assignee: Chancosa Spacek Bruno
Priority date: 2011-04-14
Filing date: 2012-04-11
Publication date: 2012-10-18
Also published as: ES2424995B1; ES2424995R1; ES2424995A2

Abstract

The invention relates to a mechanism for replacing a lamp and to a street light that includes said mechanism, where said street light is of the type that includes a structure consisting of a base, a post or other structural element and a lamp, wherein said mechanism includes a removable lamp; a means of making the lamp ascend or descend, which is located in the base of the street light and that acts on the removable lamp; and a means for inserting and removing said removable lamp. Said mechanism makes it possible to release the lamp from the support in order to facilitate handling by the user.

Description

MECHANISM FOR THE REPLACEMENT OF LUMINARY, AND FAROLA THAT UNDERSTANDS SUCH MECHANISM

The present invention relates to a mechanism for replacing a luminaire, applicable to lamps, lanterns or lanterns comprising a drive base that allows the release of the luminaire support, to facilitate user handling.

The technical sector of this invention is the application of a means of replacement or cleaning of luminaires, as well as their general maintenance. Prior art

At present, the replacement of luminaires generates an excessive expense, as well as a notable difficulty, since for this operation trucks that have baskets are usually used to raise the worker to the height of the luminaire. Thus, the objective technical problem to be solved by the present invention can be formulated in how to solve the problem of the replacement of luminaires, reducing the cost of time and labor in said replacement, and, in turn, achieving greater safety. at work for operators who perform the replacement of the luminaire, avoiding possible accidents.

For the solution of this problem, EP 0 854 320 describes a lifting apparatus that includes a fixed part, located in a high place, and a lifting part comprising an installation to be mounted in the fixed part. A power supply lifts the lifting part and is suspended from the fixed part so that it can move up and down. An interlocking device comprises a release element that acts on blocking the lifting part and the fixed part. The release element has a solenoid to release the lock of the lifting part and the fixed part by electromagnetic force. On the other hand, GB 435 831 describes a street lamp suspension device or the like in which the lamp is supported by a hanger on a rotating arm having an extension adapted to engage a hook at the end of an arm mounted on A wall or post. The cable for raising and lowering the lamp is adapted during the descent of said lamp to be carried in a substantially horizontal direction to a position from which it can descend

REPLACEMENT SHEET (Rule 26) vertically adjacent to the wall or column to leave the space under said arm free of traffic.

JP 11191312 also describes a system in which a part of the rotary drive of a manual hoist is rotatably operated, thereby raising a suspended lampholder unit at least three points, including two points in front of a manual elevator cable with the center line held between them and, additionally, a lamp side contact connected to a lamp that contacts a side contact of the main body connected to a lighting circuit in the event that the power unit Lampholder rises to a certain position. Therefore, only the rotary operation of the rotating drive part on the ground, can perform the lamp replacement work without using any ladder or conveyor carriage, with adequate stability at the time of the unit's lifting operation of lampholder.

Finally, other documents that present solutions to the mentioned technical problem are PCT applications with publication number WO2010 / 027151 and WO2007 / 046121, as well as Japanese document JP2006261016 and Chinese document CN2750185.

However, it is ES 2 260 975 that can be considered as the closest antecedent to the present invention. This document describes a mechanism applicable to lampposts for replacement of the luminaire that comprises a drive base that allows the luminaire support to be released that can descend to the hand of the one who operates the cleaning or replacement of bulbs without having to rise to the Hood of the lamppost. It has a connection and disconnection device, one for interlocking and unlocking by means of a drive latch from the base, as well as means to develop the cables that support the luminaire to lower it and recover its position.

Said document, despite solving the same objective technical problem as the present invention, presents a series of elements or components that may not perform a correct function during prolonged use, since it is necessary to take into account that a requirement for this type of mechanisms , is its minimum maintenance cost, since they are usually installed on roads and remote locations that hinder such regular maintenance. These problems, which are listed below, are partial objective technical problems that,

REPLACEMENT SHEET (Rule 26) Within the same unique inventive concept, they are resolved by the present invention.

Thus, firstly, the aforementioned document comprises an assembly comprising at least one drive pulley of a support cable in cooperation with a guide pulley, one end of the cable being attached to the support of the detachable luminaire. This drive has an axle, and at least one brake / retention device capable of being released for the descent of a detachable support. Said drive has an arrangement corresponding to a portable turning machine such as a drilling machine with a corresponding turning axis, so that the rotating tool can be comfortably inserted into the shaft to carry out the operation. Said drive device has a cover for the protection of the pulleys, as well as a shaft seal protection, said shaft being supported by flanges fixed to the base of the lamppost.

This type of drive by free pulleys has the technical problem derived from the lack of safety in its use, since, by its own configuration, the winding of the cable can be locked or misaligned with respect to the axis of action. On the other hand, the document ES 2 260 975 has a mechanism for unlocking and interlocking the luminaire, consisting of a latch provided with a rod that has a movement due to a drive, which in turn comprises a sliding latch through a slide of a body disposed at the base of the lamppost, and a connection by means of a cable to said latch, arranged on an open spring so that the traction by said latch determines the retraction of the locking rod in opposition to the effort of the spring that tends to recover the latch in an interlocking position on the hole that is disposed in the piece integral with the detachable support. This latch-type mechanism is operated by a cable that extends to the base, however, this cable, in normal use, must be properly tensioned, so that it can perform its function. It is a known fact that cables tend to lose this tension over time, and ensuring the tension of that cable generates maintenance on the lamppost independent of the maintenance of the luminaire (they do not have to coincide temporarily).

Finally, the cited document comprises a contact support between a part

REPLACEMENT SHEET (Rule 26) fixed, which has electrical voltage and another part, jointly attached to the separable luminaire that, once separated, is without voltage. Said separable luminaire has a connection for a cable, a housing for a latch, a lamp holder base for a bulb or lamp and a contact plate; and, conveniently, the luminaire support has a translucent or transparent cover integrated in said support. However, in normal use of the luminaire, the contact between fixed and mobile plate is not perfect, no means being described to ensure said contact.

Description of the invention

In order to alleviate the technical problems described above, the luminaire replacement mechanism is presented, its practical use being more common and not therefore limiting, the use in lampposts of those of the type comprising a base, a post and a luminaire in solidarity attached to a separable support; wherein said mechanism comprises means for unlocking said support and means for actuating the rise and fall of the luminaire, which are located at the base of the lamppost.

Said means of driving the rise and fall of the luminaire improves the pulley mechanisms mentioned in the prior art because they consist of a compact reel system, operated by a conventional wrench that, through a plurality of interrelated gears , actuate a double shaft, which contains a double housing for an action cable and a safety cable, also integrating a brake by friction of some pads against a disc of ferodo, as well as means for guiding the action cable, to Facilitate that it coils without obstacles and perfectly aligned on the axis of action.

In a first practical embodiment, the means for interlocking and unlocking the support eliminate the use of a cable for the movement of a latch, but a mechanism that takes advantage of the action of the drive and safety cables in the system is integrated semi-automatically. activation of the ascent and descent, the blocking will be done mechanically, and the unlocking electrically. The system consists of the interaction of three components, a latch solenoid, anchored to the fixed part that receives the box that ascends / descends in the structural assembly of the luminaire. A geometry stands out in the ascending body.

REPLACEMENT SHEET (Rule 26) The clamping piece to which the solenoid is anchored, has an inclination that corrects the angle that is usually given to the luminaires in the mounting on the rods, and also has a wedge-shaped mouthpiece that facilitates the entry of the piece between two walls that crosses the solenoid rod in its blocking action. In this piece, in the ascent movement, the upper body of the ascending body penetrates. The mouth helps to introduce a geometry arranged to actuate the solenoid rod that mechanically and helped by the force of a spring makes a lock like a latch, leaving the system locked and in a safe position. The unlocking of the system is carried out by means of an electrical connection at the base of the staff, which is powered by an additional battery available to the manipulator.

In another second practical embodiment, these interlocking and unlocking means essentially comprise a latch anchored to the box that ascends and descends from the luminaire and a part or element with a determined geometry as a way. The latch consists essentially of an axis limited by: (a) an input angle limiting element; and (b) by the action of an elastic element; where both guide the latch to enter the path of the geometry located and anchored to the upper part of the body of the luminaire. This axis moves along the road to a blocking position, remaining there until action is re-exercised on the reel in registration of the luminaire, facilitating its abandonment of the blocking position and being forced to descend along the path necessary to leave the upper part of the luminaire body again. Finally, the mechanism object of the present invention is completed with the support of the detachable luminaire of the lamppost cap. Said support, unlike in the cases described in the state of the art, is formed by two elements: (i) a receiver base mounted on the top of the luminaire; and (ii) a container body that houses the light element and its basic components inside.

The container body, in turn, is divided into a first upper body and a second lower body, where the interlocking and unlocking means are located in the upper body, while the lower part is used to access its interior and mount all the elements and systems of the luminaire.

Advantageously, the container body and more specifically the upper body of the REPLACEMENT SHEET (Rule 26) it has a geometry coinciding with the geometry of the receiving base of the upper part, so that the connection of the electrical connection and the interlocking means described is ensured. Finally, in a second aspect of the invention, the lamppost comprising the essential characteristics of the mechanism described above is claimed.

Throughout the description and the claims the word "comprises" and its variants are not intended to exclude other technical characteristics, additives, components or steps. For those skilled in the art, other objects, advantages and features of the invention will be derived partly from the description and partly from the practice of the invention. The following examples and drawings are provided by way of illustration, and are not intended to be limiting of the present invention. In addition, the present invention covers all possible combinations of particular and preferred embodiments indicated herein.

Brief description of the figures

Fig. 1 shows the means for driving the rise and fall of the luminaire, where Fig. Shows an elevation view of said means, while Fig. Ib shows a profile view of said means.

Fig. 2 shows, on the other hand, and in an isolated manner the interlocking and unlocking means that are part of the mechanism of the invention. An elevation view of said means is shown in Fig. 2a, while a side view of said means is shown in Fig. 2b.

Fig. 3 shows a view of the support of the detachable luminaire, in an exploded view thereof, showing its main parts. An elevation view of the image shown in Fig. 3 is shown in Fig. 3, where the location and typology of the contact between the different elements is represented, also representing in an enlarged view the male and female electrical contacts of the This support consists of. Fig. 3b, shows a view of the second example of practical realization thereof.

Fig. 4 shows a view of the location of the block mechanism in a second practical embodiment where FIG. 4A, shows the detail of the clamping and locking piece.

REPLACEMENT SHEET (Rule 26) Fig. 5 shows a detail of the pulley system in its first practical embodiment, where Fig. 5A shows the components of the pulley system; Fig. 5B, showing another second practical embodiment of the pulley system, and where Fig. 5C, shows the components of the pulley system in a second practical embodiment.

Explanation of an embodiment of the invention

In the attached figures, non-limitingly, a preferred embodiment for carrying out the invention is shown.

Thus, in Fig. 1 the means of driving the ascent and descent are shown.

(100) of the luminaire, comprising, at least, a first major gear (102) and a second minor gear (104) related to each other and operated by a conventional wrench, through an auger (109). Said gears (102,104) move a first shaft (110) which, in turn, comprises a double housing for the action cable and the safety cable, not shown in the figure. Said cables are limited in their movement by a brake by friction of some pads, supported by a brake plate (103) against a ferodo disk (105), regulated by a safety system operated by springs, said cables being at their instead, guided by a guide element (107) that rests on a guide plate (108) and moves with respect to a guide axis (106).

In the particular embodiment shown in FIG. 1, the ascent and descent actuation means (100) comprise the elements described above in duplicate, except the first axis (110) and the auger (109), since each of them is the person responsible for guiding one of the described cables (safety and action), the centers of the major gears (102) being displaced with respect to their vertical axis, while the minor gears (104) are aligned vertically. All the elements of these drive means (100) rest on an outer plate

(101).

These means of ascent and descent (100) act directly on the detachable support of the hood (300). Said support (300) is, in turn, composed of:

(a) a receiving base (303) located at the top of the luminaire and fixed thereto, comprising the blocking element (200,200A) of the means of

REPLACEMENT SHEET (Rule 26) interlocking; Y

(b) a container body (301,302) configured to house inside the luminaire itself and its components, that is, lamp, regardless of its nature, sodium or LED, lampholder, transformer source, reflector and / or protector or diffuser , in addition to the latch element (210,210A) of the locking means; and where said container is formed in turn by:

i. a first upper body (301) where the latch elements (210,210A) are located, in this practical embodiment two, and a plurality of male type electrical contacts (320); Y

ii. a second lower body (302) configured to be able to access its interior and mount all the systems to contain previously described;

Said first upper body (301) is of a geometry coinciding with the geometry of the receiving base (303), such that the latch elements (210,210A) are coincident with the blocking elements, ensuring that the male connections (320 ) also coincide with the female type connections (310) of the receiving base, ensuring a total and fixed contact between these elements.

In Fig. 3a it is shown in detail how said contact occurs between the receiving base (303) and the container body (301,302), and especially the male (320) and female (310) contacts are observed in detail; wherein the female contact (310) is composed of: (i) a plate (311) configured for the support to the receiving base (303) and the electrical connection; (ii) a spring (312); and (iii) a second copper plate (313), to make the electrical contact.

On the other hand, the male contact (320) comprises: (i) a carbon brush (321); and (ii) a cable connection base (322).

First practical realization of the interlocking and unlocking means;

This contact is thus secured by the interlocking and unlocking means (200,210) shown in detail in Fig. 2. These means essentially comprise a first latch-like element (210) integral to the movable part of the luminaire and a locking element (200)

REPLACEMENT SHEET (Rule 26) located in the fixed part of the luminaire.

The blocking element (200) consists essentially of an anchoring piece (201) with a certain geometry that delimits a path (204) to a certain blocking position (203), the latch element (210) entering through from the bottom of said path (204) by an input and output limiter

(202).

The latch element (210) consists essentially of an axis (211) limited by:

(a) an input angle limiting element (212); Y

(b) by the action of an elastic element, in this embodiment a spring (213) in its respective housing;

where both elements (212,213) guide the shaft (211) to enter the path (204) of the anchoring piece (201) that is located in the receiving base (303). This axis (211) moves along the path (204) to a blocking position (203), remaining there until action is taken again on the means of ascent and descent (100) of the luminaire, facilitating its abandonment of the lock position

(203) and being forced to descend along the necessary path, which is the one defined by the path (204), to leave the receiving base (303) located at the top of the luminaire body again.

Second practical embodiment of the interlocking and unlocking means;

The interlocking and unlocking means (200A, 210A) in a second embodiment are shown in detail in FIG. 4 and FIG. 4A. These means comprise a latch solenoid (200 A) anchored in the fixed part of the luminaire which is the one that receives the box that ascends / descends in the structural assembly of the luminaire; and a geometry as a projection (210 A) which is the piece that blocks the solenoid latch (200A).

The solenoid latch (200A) is anchored to a third anchoring piece (220) that has an inclination (221) that corrects the angle that is usually given to the luminaires in the assembly of the staff and also has a mouth (222) in wedge shape that facilitates the entry of the anchoring piece (210 A) between the two walls (223) that crosses the rod of the latch solenoid (200A) in its blocking action.

REPLACEMENT SHEET (Rule 26) In this piece, the upper body of the ascending body penetrates the ascent movement. The mouthpiece helps to introduce a geometry arranged to drive the solenoid rod (200A) which, mechanically and helped by the force of a spring, makes a latch-like lock, the system being locked, and in its safety position. The unlocking of the system is carried out by means of an electrical connection at the base of the staff, which is powered by an additional battery available to the manipulator. The mechanisms of action of the cable, are responsible for facilitating the route of the cables from the base of the column or staff to the box or ascending body. They consist of pulleys (500) with safety system to prevent the accidental exit of the cable that are assembled by means of bolted joints some plates (501) arranged transversely in the structural assembly of the luminaire. The firing points (502) being located in the front and rear positions, and on opposite sides of the luminaire box or container body.

The pulley system (500) is characterized by being formed by a pulley shaft (510), jointly and severally connected with an anti-derailment safety system for the cable (511), a transverse brace (512), a guide pulley cable (513) and a braided steel cable (514), which in a preferred, non-limiting embodiment will have a diameter of 1.5 cm

REPLACEMENT SHEET (Rule 26)

Claims

1. - Mechanism for the replacement of luminaire; wherein said mechanism comprises a separable luminaire (300); actuation means for raising and lowering (100) the luminaire located at the base itself, which act on the separable luminaire (300); and means for interlocking and unlocking (200,200A, 210,210A) of said separable luminaire (300); being characterized because

said means for driving the rise and fall (100) of the luminaire comprise, at least, a first major gear (102) and a second minor gear (104) related to each other and operated by a conventional key, through an auger ( 109);

and where said gears (102,104) move a first shaft (110) which, in turn, comprises a double housing for an action cable and a safety cable; and wherein said cables are limited in their movement by a brake by friction of some pads, supported by a brake plate (103) against a ferode disk (105), regulated by a spring-operated safety system, said cables being , in turn, guided by a guide element (107) that rests on a guide plate (108) and moves with respect to a guide axis (106);

there is, in addition, a duplicity in said gear (102,104), brake (103,105) and guided (106,107,108) elements, one being responsible for the guide and movement of the action cable and the second responsible for the guide and movement of the cable safety, the centers of the major gears (102) being displaced with respect to their vertical axis, while the centers of the minor gears (104) are aligned vertically.

2. - Mechanism according to claim 1 wherein the means for driving the ascent and descent (100) rest on an outer plate (101).

3. - Mechanism according to the preceding claims, wherein the separable luminaire (300) comprises, in turn:

(a) a receiving base (303) located at the top of the luminaire and fixed thereto, which comprises the blocking element (200,200 A) of the interlocking means; Y

(b) a container body (301,302) configured to house inside the luminaire itself and its components, that is, lamp,

REPLACEMENT SHEET (Rule 26) regardless of its nature, sodium or LED, lampholder, transformation source, reflector and / or protector or diffuser, in addition to the latch element (210,210A) of the interlocking means; and where said container is formed in turn by:

i. a first upper body (301) where the latch elements (210,210A) are located, in this second practical embodiment, and a plurality of male-type electrical contacts (320); Y

wherein said first upper body (301) is of a geometry coinciding with the geometry of the receiving base (303), such that the latch elements (210,210A) are coincident with the blocking elements, ensuring that the male connections ( 320) also coincide with the female type connections (310) of the receiving base, ensuring a total and fixed contact between these elements.

4. - Mechanism according to claim 3 wherein the female contact (310) is composed of: (i) a sheet (311) configured for the support to the receiving base (303) and the electrical connection; (ii) a spring (312); and (iii) a second copper plate (313), to make the electrical contact.

5. - Mechanism according to claim 3 and 4 wherein the male contact (320) comprises: (i) a carbon brush (321); and (ii) a cable connection base (322).

6. Mechanism according to the preceding claims wherein the interlocking and unlocking means (200,210) essentially comprise a first latch-like element (210) integral to the movable part of the luminaire and a blocking element (200) ) located in the fixed part of the luminaire.

7. Mechanism according to claim 6 wherein the blocking element (200) consists essentially of an anchoring piece (201) with a certain geometry that delimits a path (204) to a certain blocking position (203), the latch element (210) entering through the lower part of said path (204) by an input and output limiter (202).

8. Mechanism according to claim 6 and 7 wherein the latch element (210) consists essentially of an axis (211) limited by:

REPLACEMENT SHEET (Rule 26) (a) an input angle limiting element (212); Y

and where both elements (212,213) guide the shaft (211) to enter the path (204) of the anchoring piece (201) that is located in the receiving base (303); and where this axis (211) moves along the path (204) to a blocking position (203), remaining there until action is taken again on the means of ascent and descent (100) of the luminaire, facilitating its abandonment from the blocking position (203) and being forced to descend along the necessary path, which is defined by the path (204), to leave the receiving base (303) located at the top of the luminaire body again.

9. Lamppost comprising a structure formed by a base, a post or other structural element, and a luminaire and characterized in that it comprises at least the mechanism of claim 1.

10. - Mechanism according to claims 1 to 5, wherein the interlocking and unlocking means (200A, 210A) comprise a latch solenoid (200A) anchored in the fixed part of the luminaire that receives the ascending box / descends into the structural assembly of the luminaire; and a geometry as a projection (210A) which is the piece that blocks the solneoid latch (200 A).

1 1. - Mechanism according to claim 10, characterized in that the solenoid latch (200 A) is anchored to a third anchoring piece (220) having an inclination (221) that corrects the angle that is usually given to the luminaires in the assembly of the staff, and also has a mouth (222) in the form of a cuff that facilitates the entry of the anchoring piece (210A) between the two walls (223) that crosses the rod of the latch solenoid (200A) in its blocking action

12. Mechanism according to the preceding claims, characterized in that the mechanisms of action of the cable, are responsible for facilitating the route of the cables from the base of the column or staff to the box or ascending body and consist of pulleys ( 500) with a safety system to prevent the accidental exit of the cable, which are assembled by means of bolted joints, some plates (501) arranged transversely in the structural assembly of the luminaire; and are located at the firing points (502) in the front and rear positions, and on opposite sides of the luminaire box or container body.

REPLACEMENT SHEET (Rule 26)

13. Mechanism according to the preceding claims, characterized in that the pulley system (500) is formed by a pulley shaft (510), jointly and severally connected with an anti-derailment safety system for the cable (511), a brace transverse (512), a cable guide pulley (513) and a braided steel cable (514).

REPLACEMENT SHEET (Rule 26)