WO1990001097A1 - Device for eliminating stresses, caused by linear actuators, on the hinges of automatically operated gates - Google Patents

Device for eliminating stresses, caused by linear actuators, on the hinges of automatically operated gates Download PDF

Info

Publication number
WO1990001097A1
WO1990001097A1 PCT/IT1988/000071 IT8800071W WO9001097A1 WO 1990001097 A1 WO1990001097 A1 WO 1990001097A1 IT 8800071 W IT8800071 W IT 8800071W WO 9001097 A1 WO9001097 A1 WO 9001097A1
Authority
WO
WIPO (PCT)
Prior art keywords
gate
hinges
arm
actuator
articulation
Prior art date
Application number
PCT/IT1988/000071
Other languages
French (fr)
Inventor
Angelo Ramponi
Coletto Logallo
Original Assignee
Angelo Ramponi
Coletto Logallo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Angelo Ramponi, Coletto Logallo filed Critical Angelo Ramponi
Publication of WO1990001097A1 publication Critical patent/WO1990001097A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates

Definitions

  • the free end of the piston is connected by an articulated joint to a bracket mounted on the gate.
  • the length of said bracket is practically equal to the trans- versal distance ,between the gate's hinges and those of the actuator, measured horizontally between the plane of the gate and the vertical plane of the actuator.
  • Said distance is needed to create the component force, trans ⁇ versal in relation to the gate, generated by the actuator, namely the force that causes said gate to open or close.
  • the actuator as a rule placed practically parallel to the gate, in fact exerts a force divisible into two components according to the parallelogram of forces: one along the straight line joining the axis of the gate's hinges to that of the articulated joint between actuator and bracket on the gate, and the other perpendicular to said gate.
  • the first component the stronger of the two, is discharged into the gate's hinges and is thus not used to move the gate.
  • the second component determines the transversal action that causes the gate to open and close.
  • the above invention avoids all these drawbacks and offers considerable advantages both in lowering running costs and from the standpoint of correct functioning of the gate, as will be explained below.
  • the invention consists of a device to prevent the linear actuators from creating stresses on the hinges of automa ⁇ tically operated gates.
  • the actuator acts on a rigid arm, in an intermediate position between said actuator and the gate, said arm turning on separate hinges.
  • the free end of this arm is connected to the gate by an ar ⁇ ticulation and a device for compensating variations in the space between said articulation and the arm's hinges during rotation of the gate due to the distance on a level plane existing between the hinges of said arm and those of the gate.
  • the compensating device consists of a piston that slides axially and freely inside the intermediate arm. When the gate is open, nearly all of the piston will be inside the arm and when closed the piston will be pulled out to its maximum length.
  • the compensator may be a rigid rod, one end of which is connected to the articulation on the gate and the other to an articulation on the intermediate arm. Said rod lies substantially perpendicular to the gate, hen in an intermediate position between open and closed, and will therefore be variously oriented between an acute angle and an obtuse angle according to whether the gate is open or shut. Whatever its angle, said rod will transfer to the gate the transversal component of the force generated by the actuator .
  • the stronger component of force generated by the actuator is discharged into its hinges while the only component dis ⁇ charged into the gate is that needed to move it, one no stronger than would be needed to move it by hand.
  • Fig.1 Perspective view of the invented device mounted on one closed half of the gate.
  • Fig.2 Plan view of the gate in Fig. 1 partly open.
  • Fig.3 Plan view of an alternative form of the device mounted on one half of the gate.
  • the gate (10) rotates on the hinrges ( 11) and (12) supported by the upright (13).
  • a metal ring (14) is placed round the base of the upright and a metal bracket (15) is fixed to said ring.
  • a metal bracket (15) is fixed to said ring.
  • bracket (15) On the front of bracket (15) there is a support (30) with a hinge (31) to which the electro-mechanical actuator (16) is articulated, said actuator comprising a motor (32) and a front body (33) containing a worm screw turned by the motor.
  • Said front body (33) is connected by articulation (34) to the bracket (35) fixed to the tubular body (22) of the com- pensator (21).
  • this force (F) has two components: one (a) directed along the straight line from the hinge (20) of the arm (21) to articulation (34) of the actuator, and the other (b) directed perpendicularly to the plane of the gate.
  • Component (a) obviously discharges into hinges (20) of arm (21) and is not used to open and close the gate.
  • Component (b) creates a force transversal to arm (21).
  • FIG. 1 and 2 show the stop (37) marking the end of the ingoing stroke of rod (23), and stop (38) that slides in slot (39) of tubular body (22.) to terminate the outgoing stroke of said rod (23).
  • the alternative version in Figure 3 shows the gate (40) sup- ported on hinges (41) mounted on the pillar (42).
  • bracket (43) Fixed to said pillar is bracket (43) whose inner side sup ⁇ ports a hinge (44) on which an arm (45) rotates.
  • the other end of said arm is connected by an articulation (46) to a strut (47) whose other end is hinged to articula- tion (48) on the gate (40).

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  • Hinges (AREA)
  • Transmission Devices (AREA)

Abstract

Device for eliminating stresses, caused by linear actuators, on the hinges of automatically operated gates, use being made for this purpose of an arm (21) in an intermediate position between the actuator (16) and the gate (10), turning on independent hinges (20) and connected to the gate (10) by an articulation (24), and a part (23) for compensating the variations in the distance between said articulation (24) and the hinges (20) of said arm (21) during rotation of the gate (10), causing the unused component (a) of force (F), generated by the actuator (16) and substantially parallel to the gate (10), to be discharged into the hinges (20) of said intermediate arm (21), while the transversal component (b) of said force (F) acts on the gate (10) through the intermediate arm (21).

Description

DEVICE FOR ELIMINATING STRESSES, CAUSED BY LINEAR ACTUA¬ TORS, ON THE HINGES OF AUTOMATICALLY OPERATED GATES Actuators of a well-known kind are used for automa ically opening and closing gates. ■ The "linear" type of these devices comprises an oblong base to house the motor, and a piston whose axial movement , caused by rotation of the motor, opens or closes the gate. The above base, supported by a grounded structure such as the pillar ,on which the gate's hinges are mounted, rests on its own hinges placed at a certain distance from those of the gate.
The free end of the piston is connected by an articulated joint to a bracket mounted on the gate. The length of said bracket is practically equal to the trans- versal distance ,between the gate's hinges and those of the actuator, measured horizontally between the plane of the gate and the vertical plane of the actuator.
Said distance is needed to create the component force, trans¬ versal in relation to the gate, generated by the actuator, namely the force that causes said gate to open or close.
The actuator, as a rule placed practically parallel to the gate, in fact exerts a force divisible into two components according to the parallelogram of forces: one along the straight line joining the axis of the gate's hinges to that of the articulated joint between actuator and bracket on the gate, and the other perpendicular to said gate. The first component, the stronger of the two, is discharged into the gate's hinges and is thus not used to move the gate. The second component determines the transversal action that causes the gate to open and close.
Clearly, therefore , most of the actuator's power is discharged into the ground through the' gate's hinges. Consequently said hinges wear out quickly and this not only adds to running costs, since repairs are frequently needed, but also cau¬ ses the gate to function in an irregular manner. If these hinges do not function properly the two parts of the gate will in fact not fit together correctly.
The above invention avoids all these drawbacks and offers considerable advantages both in lowering running costs and from the standpoint of correct functioning of the gate, as will be explained below. The invention consists of a device to prevent the linear actuators from creating stresses on the hinges of automa¬ tically operated gates.
By means of the invention the actuator acts on a rigid arm, in an intermediate position between said actuator and the gate, said arm turning on separate hinges.
The free end of this arm is connected to the gate by an ar¬ ticulation and a device for compensating variations in the space between said articulation and the arm's hinges during rotation of the gate due to the distance on a level plane existing between the hinges of said arm and those of the gate.
By means of this device the unused component of the force, which the actuator generates substantially parallel to the gate, is discharged into the hinges of the intermediate arm while the transversal component of said force acts on the gate through the intermediate arm.
The compensating device consists of a piston that slides axially and freely inside the intermediate arm. When the gate is open, nearly all of the piston will be inside the arm and when closed the piston will be pulled out to its maximum length. Alternatively the compensator may be a rigid rod, one end of which is connected to the articulation on the gate and the other to an articulation on the intermediate arm. Said rod lies substantially perpendicular to the gate, hen in an intermediate position between open and closed, and will therefore be variously oriented between an acute angle and an obtuse angle according to whether the gate is open or shut. Whatever its angle, said rod will transfer to the gate the transversal component of the force generated by the actuator . Advantages
The stronger component of force generated by the actuator is discharged into its hinges while the only component dis¬ charged into the gate is that needed to move it, one no stronger than would be needed to move it by hand.
Though applying to the gate the power required to rotate it, the actuator cannot therefore damage the gate's hinges in any way at all . Discharge of the stronger component of force on the actuator's hinges creates no problems of cost or functionality partly because said hinges do not carry the weight of the gate and partly because any wear caused to them occurs in the direc¬ tion of the actuator's axis and therefore does not affect automatic operation of the gate. Finally, the gate's hinges remain efficient for much longer, at least as long as those of an ordinary gate, while costs for maintenance are greatly reduced. Examples of execution Fig.1 Perspective view of the invented device mounted on one closed half of the gate. Fig.2 Plan view of the gate in Fig. 1 partly open. Fig.3 Plan view of an alternative form of the device mounted on one half of the gate. The gate (10) rotates on the hinrges ( 11) and (12) supported by the upright (13).
A metal ring (14) is placed round the base of the upright and a metal bracket (15) is fixed to said ring. On the inner side of said bracket there is a hinge (20) to which is applied the intermediate arm (21) comprising a tubular body (22) within which a rod (23) slides telescope- wise, said rod being connected by an articulation (24) to the bracket (25) fixed to the gate ( 10).
On the front of bracket (15) there is a support (30) with a hinge (31) to which the electro-mechanical actuator (16) is articulated, said actuator comprising a motor (32) and a front body (33) containing a worm screw turned by the motor.
Said front body (33) is connected by articulation (34) to the bracket (35) fixed to the tubular body (22) of the com- pensator (21).
In the normal way an actuator mounted on an automatically operated gate generates, by means of longitudinal transla¬ tion of a piston, a force directed practically parallel to the gate causing the gate to open or close. In the case of Fig. l, this force (F) has two components: one (a) directed along the straight line from the hinge (20) of the arm (21) to articulation (34) of the actuator, and the other (b) directed perpendicularly to the plane of the gate. Component (a) obviously discharges into hinges (20) of arm (21) and is not used to open and close the gate. Component (b) creates a force transversal to arm (21). Oscil¬ lation of said arm (21) around the hinge (20) similarly thrusts said force (b) transversally onto the gate causing it to open or close . It follows from the above that the maximum stresses set up by the force which actuator ( 16) generates are discharged in¬ to the hinge (20) of the intermediate arm (21) while the only force reaching the gate ( 10) is the transversal force (b), much weaker1 than force (a) and having no effect on gate hin- ges ( 11) and ( 12) .
Variations in the distance between articulation (24) on the gate and the hinges of the intermediate arm (21) are compen¬ sated by translation of piston (23) in relation to the hinged body (22). Figures 1 and 2 show the stop (37) marking the end of the ingoing stroke of rod (23), and stop (38) that slides in slot (39) of tubular body (22.) to terminate the outgoing stroke of said rod (23). The alternative version in Figure 3 shows the gate (40) sup- ported on hinges (41) mounted on the pillar (42).
Fixed to said pillar is bracket (43) whose inner side sup¬ ports a hinge (44) on which an arm (45) rotates. The other end of said arm is connected by an articulation (46) to a strut (47) whose other end is hinged to articula- tion (48) on the gate (40).
On the rod (45) there is a bracket (50) to whose end is con¬ nected, by articulation (51), the end of piston (54) of actua¬ tor (52) with motor body (53) mounted on the hinge (55) of support (56) fixed to the bracket (43). When the actuator is functioning, a force (F) is directed along its axis, said force. be n split up into two components: 'one (c) directed along the straight line between the hinge (44) and articulation (51), and the other (d) directed per¬ pendicular to the plane of the gate setting up a transver¬ sal thrust on the arm (45). Rotation movement of said arm round the hinge (44) is trans¬ ferred through the strut (47) to the gate (40), said arm causing the gate to open or close according to the direc¬ tion in which the piston (54) translates.
When the gate is in position (40'), the actuator in posi- tion (52') and the intermediate arm in position (45'), shown by the dotted outline in Fig.3, the strut (47') lies prac¬ tically perpendicular to the gate (40') and also to the arm (45') due to the effect created by the space between the hinges (41) of the gate and the hinges (44)of the arm (45).
Variation in the distance between articulation (48) on the gate and hinges (44) of the intermediate arm (45) during rotation of the gate is compensated by rotation of the strut (47).

Claims

C l aims
1. Device for eliminating stresses caused by linear ac¬ tuators on the hinges of automatically operated gates,cha¬ racterized in that the actuator (16), (52) acts on an arm (21), (45) in an intermediate position between said actuator ( 16), (52) and the gate ( 10), (40) turning on separate hinges(20), (44), the other end of said intermediate arm (21), (45) being connected to the gate ( 10), (40) by means of an arti¬ culation (24), (48) and a device compensating variations in the distance between said articulation (24), (48) and the hinges (20), (44) of the arm (21), (45) during rotation of the gate (10), (40) causing the unused component (a), (c) of force (F), generated by the actuator ( 16) and substan¬ tially parallel to the gate ( 10), to be discharged on the hinges (20), (44) of said intermediate arm (21), (45),while the transversal component (b), (d) of said force (F) acts on the gate (10), (40) through the intermediate arm (21),
(45) causing said gate to open or close.
2. Device for absorbing longitudinal stresses on the hin- ges of automatically operated gates with linear actuators as in claim 1, characterized in that the compensating de¬ vice consists of a piston (23) sliding inside the tubular body (22) of an intermediate arm (21).
3. Device for absorbing longitudinal stresses on the hin- ges of automa ically operated gates with linear actuators as in claim 1, characterized in that the compensator device is a bar (47) connected at one end to an articulation (48) on the gate (40) and at the other end to an articulation
(46) on an intermediate arm (45), the position of articu- lation (46) on the gate (40) being such that the bar (47) lies substantially perpendicular to the gate (40) when said gate is in a position intermediate between maximum and mi¬ nimum opening.
PCT/IT1988/000071 1988-07-19 1988-10-04 Device for eliminating stresses, caused by linear actuators, on the hinges of automatically operated gates WO1990001097A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8821415A IT1229481B (en) 1988-07-19 1988-07-19 DEVICE FOR THE ELIMINATION OF THE SOLICITATIONS ON THE HINGES OF THE AUTOMATIC GATES, BY THE LINEAR ACTUATORS.
IT21415A/88 1988-07-19

Publications (1)

Publication Number Publication Date
WO1990001097A1 true WO1990001097A1 (en) 1990-02-08

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ID=11181431

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1988/000071 WO1990001097A1 (en) 1988-07-19 1988-10-04 Device for eliminating stresses, caused by linear actuators, on the hinges of automatically operated gates

Country Status (3)

Country Link
AU (1) AU2488388A (en)
IT (1) IT1229481B (en)
WO (1) WO1990001097A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394651A (en) * 1992-03-17 1995-03-07 Vial; Jean J. Fixing device for an actuator to control the opening and closing of the leaf of a door or gate
US6742303B2 (en) * 1999-12-09 2004-06-01 Genius S.R.L. Linear actuator for gates, doors and the like

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469543A1 (en) * 1979-11-15 1981-05-22 Antares Automatic door or gate operating device - uses hydraulic piston mounted between hinge and sliding mounting fitted to door

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469543A1 (en) * 1979-11-15 1981-05-22 Antares Automatic door or gate operating device - uses hydraulic piston mounted between hinge and sliding mounting fitted to door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394651A (en) * 1992-03-17 1995-03-07 Vial; Jean J. Fixing device for an actuator to control the opening and closing of the leaf of a door or gate
US6742303B2 (en) * 1999-12-09 2004-06-01 Genius S.R.L. Linear actuator for gates, doors and the like

Also Published As

Publication number Publication date
IT8821415A0 (en) 1988-07-19
AU2488388A (en) 1990-02-19
IT1229481B (en) 1991-09-03

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