EP3350401B1 - Turnstile for access control - Google Patents
Turnstile for access control Download PDFInfo
- Publication number
- EP3350401B1 EP3350401B1 EP16774879.7A EP16774879A EP3350401B1 EP 3350401 B1 EP3350401 B1 EP 3350401B1 EP 16774879 A EP16774879 A EP 16774879A EP 3350401 B1 EP3350401 B1 EP 3350401B1
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- EP
- European Patent Office
- Prior art keywords
- bar
- pole
- turnstile
- slider
- axis
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- Legal status (The legal status 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 status listed.)
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
- E06B11/08—Turnstiles; Gates for control of entry or exit of persons, e.g. in supermarkets
Definitions
- the present invention relates to a turnstile for access control.
- the turnstile is a rotatable device that allows the controlled passage of people, typically one person at a time, through a barrier in order to control access to specific areas.
- Turnstiles are divided substantially into two macro-categories: turnstiles for controlling particularly critical areas (for example full-height and/or impassable turnstiles for stadiums, glass panel turnstiles for subways, turnstiles with sliding doors), which must provide high assurances of security, and turnstiles for controlling noncritical areas (e.g., offices, swimming pools, sports facilities), which usually have rather compact dimensions.
- turnstiles of the tripod type (or equivalently of the bipod type) and turnstiles with a flap or bar are particularly worthy of mention.
- Tripod turnstiles allow to prevent the passage of more than one person thanks to the bar that closes behind the user and is furthermore reversible (use in the entry direction and in the opposite exit direction is equivalent).
- this type of tripod turnstile is relatively bulky due to the rotating structure composed of mutually integral tubes, the outline of which is a cone which necessarily has a greater space occupation than the passage controlled by such turnstile.
- this type of turnstile cannot be used generally as an escape route in case of emergency unless additional mechanisms are used which allow to lower the arms so as to leave the passage clear.
- this type of tripod turnstile has the drawback of preventing the passage of bicycles, pushchairs and the like, since the presence of the bars interferes with their passage.
- Flap turnstiles wherein the flap can be for example a large bar but also a panel
- a tripod turnstile since they have a single flap or two mutually synchronized flaps, to the right and to the left of the passage), allow the passage of pushchairs and bicycles and furthermore allow the escape route if the flaps are left in the open position.
- closure of the flap which is motorized, occurs synchronously with a photocell that detects that the user has passed, so that the door closes behind the passing user. The presence of the photocell in this type of flap turnstile is therefore necessary and generates costs.
- this flap turnstile makes it very difficult, if not impossible, to block the passage of more than one person, since the door must remain open as long as the passage is occupied. Furthermore, the flap turnstile is not easily reversible, i.e., the reverse or exit path cannot be managed in the same manner as entry, due to the absence on the exit side of the apparatuses that are present on the entry side and due to the fact that the flap would move against the user.
- the aim of the present invention is to overcome the limitations of the background art described above, by providing a turnstile that can be easy and effective to use.
- an object of the present invention is to provide a turnstile that is compact and allows the passage of users and of any vehicles, such as bicycles or pushchairs, carried by such users.
- Another object of the invention is to provide a turnstile that can be used as an escape route and allows access control so that users pass one at a time.
- a further object of the invention is to provide a turnstile that is reversible, i.e., can be used in both of the directions, exit or entry, of the controlled area.
- Another object of the invention is to provide a turnstile that is able, in an alternative manner, to achieve the advantages of traditional turnstiles, such as tripod or flap turnstiles, eliminating their drawbacks.
- Another object of the present invention is to provide a structure that is simple, relatively easy to provide in practice, safe in use, effective in operation, and of relatively low cost.
- FIG. 1 An exemplifying architecture of the turnstile according to the present invention is shown in Figure 1 .
- FIG. 1 shows a turnstile, designated generally by the reference numeral 1.
- the turnstile 1 comprises an enclosure 2, a bar 3 and a plurality of components arranged inside the enclosure - including a motor 6, a reduction unit 7, a cam 8 and a slider 9 - which are shown in dashed lines.
- the enclosure 2 is preferably divided into two distinct components, in particular a first component 2a, which is integral with a fixed surface, for example the floor or the ground on which the turnstile 1 is accommodated, and a second component 2b, which can rotate.
- the enclosure 2 is shaped like a tube and the two components 2a and 2b are conveniently provided as two steel tubes having an equal circular cross-section, which can be superimposed preferably in such a manner that the respective axes of longitudinal extension coincide.
- the component 2b is associated rotatably with the first component 2a so as to rotate about an axis which coincides with the axis of longitudinal extension of the first component 2a.
- the enclosure 2 is hollow, i.e., it has a cavity that is adapted to contain various components and a supporting pole 4, which is preferably fixed and is integral with the first component 2a and is extended parallel to the longitudinal extension of the enclosure 2.
- the first component 2a and the pole 4 are configured so as to be integral with the resting surface on which the turnstile 1 is arranged.
- the supporting pole 4 is substantially concentric with the enclosure 2.
- the supporting pole 4 is preferably cylindrical and hollow but it should be understood that its shape can also be different, provided that it is suitable to support the various internal components of the turnstile 1.
- the supporting pole 4 can be replaced with a series of shafts which are mutually connected concentrically or in an axially offset manner.
- the bar 3 for obstructing an access is of a known type and is configured so as to block a passage controlled by the turnstile 1.
- the bar 3 is capable of rotating through 360° about the pole 4 or in any case about an axis that is parallel to the pole 4.
- the bar 3 is of the lowerable type and is adapted to pass reversibly from a first position (which is horizontal, i.e., parallel to the ground), in which it is substantially perpendicular to the pole 4 so as to block an access, and a second position (vertical, i.e., perpendicular to the ground), in which it is arranged parallel to the pole 4 so that it does not hinder access.
- the bar 3 has an angle, termed lowering angle, which is associated therewith and which in the first position is substantially right and in the second position is zero.
- the breadth of the lowering angle is equal to: a) substantially 90° when the rotation angle is substantially 0°, so that the bar 3 is perpendicular to the pole and prevents access; b) substantially 0° when the rotation angle is equal to substantially 90°, so that the bar is parallel to the pole 4 and is arranged on an opposite side with respect to the side of the access and does not hinder access; c) substantially 90° when the rotation angle is equal to substantially 360°, i.e., when the bar 3 has performed a full rotation about an axis that is parallel to the fixed pole 4.
- the motor 6 is adapted to be arranged preferably inside the first component 2a and is conveniently supported by supporting means, which can include the supporting pole 4.
- the motor 6 is of the brushless servomotor type.
- the motor 6 transmits the rotary motion to a set of gears 6a (first reduction stage), which in the preferred embodiment comprise a ring gear and a pinion.
- the set of gears 6a has a reduction ratio, preferably 1:3, associated therewith.
- the various components 6, 6a are shown as being contained in respective containers.
- the motor 6 is adapted to generate a motion which, by means of the reduction unit 7, turns the second component 2b.
- the reduction unit 7 is a device that comprises a series of gears (second reduction stage), which are assigned to reducing the speed and in particular the rotation speed transmitted by the gears 6a associated with the motor 6.
- the component 7 is shown as contained within a container.
- the reduction unit 7 is of the cycloidal type (or "cyclo", which is different from the planetary epicyclic type) and comprises a ring gear with pins 7a, a male cycloid gear 7b and a ring gear 7c, termed output ring gear.
- the reduction unit 7 has a reduction ratio of 1:21.
- the output ring gear 7c comprises a screw retention element that is adapted to engage the second component 2b so as to make it rotate, transmitting thereto the motion generated by the motor and subsequently submitted to the two stages (first and second) for reduction.
- the cam 8 is fixed integrally to the pole 4 and is adapted to be arranged between the reduction unit 7 and the slider 9. Specifically, the cam 8 lies on the reduction unit 7 and has, on a side that lies opposite the one where the reduction unit 7 is located, a contact surface for the slider 9. Such surface forms a path 8a for a follower 9a that is associated with the slider 9.
- the path 8a for example, is an ellipse, arranged obliquely with respect to the pole 4 and in any case comprises at least two points arranged at different heights.
- the cam 8 has substantially the shape of a frustum, preferably hollow, with a substantially elliptical cross-section, in which the edge of the cross-section defines the contact surface and therefore the path for the follower 9a.
- the actuation of the bar 3 is performed also by means of the cam 8 actuated by the same motor 6 that performs the rotation.
- the slider 9 is a device capable of sliding along the hollow pole 4 and of rotating about it.
- the slider 9 has an annular cross-section within which the pole 4 slides.
- the slider 9 is further provided with the follower 9a, which is adapted to slide along a contact surface of the cam 8.
- the follower 9a of the slider 9 is provided by means of a cam follower roller or bearing.
- the slider 9 can slide vertically along the pole 4 as a function of the position of the follower 9a on the path 8a of the cam 8 and optionally of the rotation of the cam 8.
- the slider 9 can rotate about the pole 4.
- the slider 9 is configured to be engaged by the sliding block 5: since the sliding block 5 is integral with the second component 2b and the slider 9 is connected to the bar 3, the rotation of the component 2a accordingly causes the rotation, termed first rotation, of the bar 3 about the pole 4.
- the component 2b of the enclosure is moved by the output of the element 7c of the reduction unit 7.
- the element 2b is connected to the sliding block 5, which in turn engages the slider 9.
- the slider 9 is provided furthermore with a mechanism 9b adapted to impart a rotation, termed second rotation, to the bar 3 along an axis that is substantially perpendicular to the pole 4 so as to allow its lowering.
- the mechanism 9b is provided as a right-angled crank, which, as a function of the position of the follower 9a, lifts or lowers, i.e., rotates along an axis that is perpendicular to the pole 4, the bar 3.
- the mechanism 9b acts on the bar 3 so that it is in a horizontal position (parallel to the resting surface of the turnstile 1), while when it is in the lowest point of the path the bar 3 is in a vertical position (at right angles to the resting surface of the turnstile 1).
- the mechanism 9b can be provided also in a different manner, for example by means of a device of the Uniball type. Therefore, the movement of the slider 9 causes the lifting and lowering of the bar 3.
- Figure 2 is a perspective view of the turnstile 1 in which the external enclosure 2 is not shown.
- Figure 3 is a perspective view of the upper part of the turnstile 1, which is preferably adapted to be contained in the component 2b.
- the configuration of the components shown in Figure 3 preferably corresponds to the configuration in which the bar 3 is horizontal and prevents user passage.
- the roller 9a is in the highest position with respect to the cam 8 and the crank 9b keeps the arm 9b" that supports the bar 3 in such a position that the bar 3 is in the horizontal configuration.
- the rotation of the enclosure or jacket 2b causes the movement of the roller 9a along the path 8a of the cam 8: accordingly, the slider 9 slides along the pole 4.
- the crank 9b which is pivoted in the point 9b', rotates the arm 9b" along a seat 9c obtained from the slider 9.
- the crank 9b and the arm 9b" can provide a kinematic system of the rod-and-crank type.
- the seat 9c can be provided as a discontinuity of the slider 9.
- Figure 4 shows in greater detail some elements of Figure 1 , i.e., the brushless servomotor 6, the pinion 6a' of the first reduction stage, the eccentric shaft of the second reduction stage 6a" and the supporting pole 4.
- the first reduction stage comprises a hollow gear which turns an eccentric shaft of the second reduction stage.
- the first reduction stage can be contained in a cup-shaped support.
- Figure 5 shows with greater detail some elements of Figure 1 and in particular the stator of the second reduction stage and the coupling on the external pole connected to the footing.
- Figure 6 shows with greater detail the cycloidal gear 7b of the second reduction stage 7.
- the figure does not show the component 7c, which is to be understood as being part of the lower part of the turnstile 1.
- the component 7c is provided with holes that can be engaged with play on pins (four are shown in a nonlimiting manner in the figure) of the component 7b.
- the second stage can comprise an eccentric shaft that is coupled on a fixed "pin wheel" which, for each turn of the eccentric shaft, skips by one pin, reducing the rotation speed by preferably 1:21.
- the turnstile 1 is an initial position for blocking access, in which the bar 3 is parallel to the resting surface of the turnstile 1, i.e., in a horizontal position, assuming the configuration shown in Figure 7a . It is assumed that the passage controlled by the turnstile 1 is the one arranged on the right side of the pole 4 as shown in Figure 7a and that the user accesses from the left side of Figure 7a , in which the bar 3 is arranged.
- Figure 7b shows one of the intermediate positioning steps, i.e., a configuration in which the bar is inclined with respect to the pole by a lowering angle that is preferably comprised between 0° and 90°.
- Figure 7c shows the configuration assumed by the bar 3 as a consequence of a rotation through 180° with respect to the initial position: the bar 3 is displaced on the opposite side with respect to the one where the bar 3 was in the initial position: the bar 3 is completely lowered and has assumed a vertical position. At this point the bar 3 is on the opposite side with respect to the user, does not hinder passage but advantageously does not cause space occupation since it is against the turnstile 1.
- the turnstile 1 can therefore be installed next to a wall or even next to other turnstiles 1. Once the bar 3 has been lowered, the user can thus cross the turnstile.
- the bar 3 therefore, continues to move gradually, rotating and assuming the intermediate configuration shown in Figure 7d , continuing its motion until it assumes again the initial configuration shown in Figure 7a .
- the follower 9a is located in the initial position again and accordingly the slider 9 also is in the initial position, preferably at a maximum height on the path 8a, which entails repositioning the bar 3 in the initial locking portion, i.e., parallel to the ground.
- the bar 3 then closes directly behind the user that has passed, rendering advantageously unnecessary a photocell for detecting the presence or passage of the user.
- the turnstile 1 is provided furthermore with at least one sensor that detects the correct placement of the bar 3 and in particular the correct stop position of the bar 3.
- the turnstile 1 is provided with means for processing a command, which cause the movement of the bar 3.
- the command might be received from an external control unit and for example might consist in making the turnstile 1 assume, in an emergency situation, the configuration for free passage of users (bar 3 lowered, perpendicular to the ground).
- the command can also be obtained, typically in conditions for ordinary use of the turnstile 1, on the basis of a reading of a badge for access control on the part of a reader connected to the processing means.
- the turnstile 1 allows to achieve the advantages of conventional turnstiles without being affected by their defects.
- the bar 3 follows a path that is entirely similar to the cone traced by a tripod turnstile, without however causing a space occupation since it does not protrude on the opposite side with respect to the side for the passage of the user.
- turnstile 1 in case of emergency, stopping the bar 3 in a vertical position.
- the turnstile ensures reversibility, which is provided by the fact that the turnstile can operate identically for clockwise or counterclockwise rotations: in any case, the bar 3 lowers and rises again behind the user.
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Description
- The present invention relates to a turnstile for access control.
- The turnstile is a rotatable device that allows the controlled passage of people, typically one person at a time, through a barrier in order to control access to specific areas. Turnstiles are divided substantially into two macro-categories: turnstiles for controlling particularly critical areas (for example full-height and/or impassable turnstiles for stadiums, glass panel turnstiles for subways, turnstiles with sliding doors), which must provide high assurances of security, and turnstiles for controlling noncritical areas (e.g., offices, swimming pools, sports facilities), which usually have rather compact dimensions.
- In this second category, turnstiles of the tripod type (or equivalently of the bipod type) and turnstiles with a flap or bar are particularly worthy of mention.
- Tripod turnstiles allow to prevent the passage of more than one person thanks to the bar that closes behind the user and is furthermore reversible (use in the entry direction and in the opposite exit direction is equivalent). In any case, this type of tripod turnstile is relatively bulky due to the rotating structure composed of mutually integral tubes, the outline of which is a cone which necessarily has a greater space occupation than the passage controlled by such turnstile. Furthermore, this type of turnstile cannot be used generally as an escape route in case of emergency unless additional mechanisms are used which allow to lower the arms so as to leave the passage clear. Furthermore, this type of tripod turnstile has the drawback of preventing the passage of bicycles, pushchairs and the like, since the presence of the bars interferes with their passage.
- Flap turnstiles (wherein the flap can be for example a large bar but also a panel) are relatively less bulky than a tripod turnstile (since they have a single flap or two mutually synchronized flaps, to the right and to the left of the passage), allow the passage of pushchairs and bicycles and furthermore allow the escape route if the flaps are left in the open position. In any case, closure of the flap, which is motorized, occurs synchronously with a photocell that detects that the user has passed, so that the door closes behind the passing user. The presence of the photocell in this type of flap turnstile is therefore necessary and generates costs. Furthermore, this flap turnstile makes it very difficult, if not impossible, to block the passage of more than one person, since the door must remain open as long as the passage is occupied. Furthermore, the flap turnstile is not easily reversible, i.e., the reverse or exit path cannot be managed in the same manner as entry, due to the absence on the exit side of the apparatuses that are present on the entry side and due to the fact that the flap would move against the user.
- Turnstiles according to the preamble of
claim 1 are disclosed indocument EP 1 609 942 A1 , indocument EP 2 717 235 A1 and in documentUS 6 185 867 B1 . - The aim of the present invention is to overcome the limitations of the background art described above, by providing a turnstile that can be easy and effective to use.
- Within this aim, an object of the present invention is to provide a turnstile that is compact and allows the passage of users and of any vehicles, such as bicycles or pushchairs, carried by such users.
- Another object of the invention is to provide a turnstile that can be used as an escape route and allows access control so that users pass one at a time.
- A further object of the invention is to provide a turnstile that is reversible, i.e., can be used in both of the directions, exit or entry, of the controlled area.
- Another object of the invention is to provide a turnstile that is able, in an alternative manner, to achieve the advantages of traditional turnstiles, such as tripod or flap turnstiles, eliminating their drawbacks.
- Another object of the present invention is to provide a structure that is simple, relatively easy to provide in practice, safe in use, effective in operation, and of relatively low cost.
- This aim, as well as these and other objects that will become better apparent hereinafter, are achieved by a turnstile according to
claim 1. - Further characteristics and advantages of the invention will become better apparent from the detailed description that follows, given by way of nonlimiting example and accompanied by the corresponding figures, wherein:
-
Figure 1 is a front view of a turnstile according to the present invention; -
Figure 1a is a front view of some components of the turnstile according to the present invention; -
Figure 2 is a perspective view of the turnstile ofFigure 1a ; -
Figure 3 is a view of a first detail of the turnstile according to the present invention; -
Figures 4-6 are additional views of other details of the turnstile according to the present invention; -
Figures 7a-7d are views of various configurations assumed by the turnstile according to the present invention. - An exemplifying architecture of the turnstile according to the present invention is shown in
Figure 1 . -
Figure 1 shows a turnstile, designated generally by thereference numeral 1. Theturnstile 1 comprises anenclosure 2, abar 3 and a plurality of components arranged inside the enclosure - including amotor 6, a reduction unit 7, acam 8 and a slider 9 - which are shown in dashed lines. Theenclosure 2 is preferably divided into two distinct components, in particular afirst component 2a, which is integral with a fixed surface, for example the floor or the ground on which theturnstile 1 is accommodated, and asecond component 2b, which can rotate. Preferably, theenclosure 2 is shaped like a tube and the twocomponents component 2b is associated rotatably with thefirst component 2a so as to rotate about an axis which coincides with the axis of longitudinal extension of thefirst component 2a. Theenclosure 2 is hollow, i.e., it has a cavity that is adapted to contain various components and a supportingpole 4, which is preferably fixed and is integral with thefirst component 2a and is extended parallel to the longitudinal extension of theenclosure 2. - The
first component 2a and thepole 4 are configured so as to be integral with the resting surface on which theturnstile 1 is arranged. In one embodiment, the supportingpole 4 is substantially concentric with theenclosure 2. - The supporting
pole 4 is preferably cylindrical and hollow but it should be understood that its shape can also be different, provided that it is suitable to support the various internal components of theturnstile 1. - For example, the supporting
pole 4 can be replaced with a series of shafts which are mutually connected concentrically or in an axially offset manner. - The
bar 3 for obstructing an access is of a known type and is configured so as to block a passage controlled by theturnstile 1. Thebar 3 is capable of rotating through 360° about thepole 4 or in any case about an axis that is parallel to thepole 4. Furthermore, thebar 3 is of the lowerable type and is adapted to pass reversibly from a first position (which is horizontal, i.e., parallel to the ground), in which it is substantially perpendicular to thepole 4 so as to block an access, and a second position (vertical, i.e., perpendicular to the ground), in which it is arranged parallel to thepole 4 so that it does not hinder access. Thebar 3 has an angle, termed lowering angle, which is associated therewith and which in the first position is substantially right and in the second position is zero. Preferably, the breadth of the lowering angle is equal to: a) substantially 90° when the rotation angle is substantially 0°, so that thebar 3 is perpendicular to the pole and prevents access; b) substantially 0° when the rotation angle is equal to substantially 90°, so that the bar is parallel to thepole 4 and is arranged on an opposite side with respect to the side of the access and does not hinder access; c) substantially 90° when the rotation angle is equal to substantially 360°, i.e., when thebar 3 has performed a full rotation about an axis that is parallel to thefixed pole 4. - With reference to
Figure 1a , the internal components of theturnstile 1 are described. - The
motor 6 is adapted to be arranged preferably inside thefirst component 2a and is conveniently supported by supporting means, which can include the supportingpole 4. Preferably, themotor 6 is of the brushless servomotor type. Conveniently, themotor 6 transmits the rotary motion to a set ofgears 6a (first reduction stage), which in the preferred embodiment comprise a ring gear and a pinion. - The set of
gears 6a has a reduction ratio, preferably 1:3, associated therewith. InFigure 1a , thevarious components motor 6 is adapted to generate a motion which, by means of the reduction unit 7, turns thesecond component 2b. - The reduction unit 7 is a device that comprises a series of gears (second reduction stage), which are assigned to reducing the speed and in particular the rotation speed transmitted by the
gears 6a associated with themotor 6. InFigure 1a , the component 7 is shown as contained within a container. In the preferred embodiment, the reduction unit 7 is of the cycloidal type (or "cyclo", which is different from the planetary epicyclic type) and comprises a ring gear withpins 7a, amale cycloid gear 7b and aring gear 7c, termed output ring gear. Preferably, the reduction unit 7 has a reduction ratio of 1:21. Theoutput ring gear 7c comprises a screw retention element that is adapted to engage thesecond component 2b so as to make it rotate, transmitting thereto the motion generated by the motor and subsequently submitted to the two stages (first and second) for reduction. - The
cam 8 is fixed integrally to thepole 4 and is adapted to be arranged between the reduction unit 7 and theslider 9. Specifically, thecam 8 lies on the reduction unit 7 and has, on a side that lies opposite the one where the reduction unit 7 is located, a contact surface for theslider 9. Such surface forms apath 8a for afollower 9a that is associated with theslider 9. Thepath 8a, for example, is an ellipse, arranged obliquely with respect to thepole 4 and in any case comprises at least two points arranged at different heights. In one embodiment, thecam 8 has substantially the shape of a frustum, preferably hollow, with a substantially elliptical cross-section, in which the edge of the cross-section defines the contact surface and therefore the path for thefollower 9a. In one embodiment, the actuation of thebar 3 is performed also by means of thecam 8 actuated by thesame motor 6 that performs the rotation. - The
slider 9 is a device capable of sliding along thehollow pole 4 and of rotating about it. In particular, theslider 9 has an annular cross-section within which thepole 4 slides. Theslider 9 is further provided with thefollower 9a, which is adapted to slide along a contact surface of thecam 8. Preferably, thefollower 9a of theslider 9 is provided by means of a cam follower roller or bearing. Conveniently, theslider 9 can slide vertically along thepole 4 as a function of the position of thefollower 9a on thepath 8a of thecam 8 and optionally of the rotation of thecam 8. - Furthermore, the
slider 9 can rotate about thepole 4. In particular, theslider 9 is configured to be engaged by the sliding block 5: since the slidingblock 5 is integral with thesecond component 2b and theslider 9 is connected to thebar 3, the rotation of thecomponent 2a accordingly causes the rotation, termed first rotation, of thebar 3 about thepole 4. In other words, thecomponent 2b of the enclosure is moved by the output of theelement 7c of the reduction unit 7. Theelement 2b is connected to the slidingblock 5, which in turn engages theslider 9. - Therefore, the rotation of the
slider 9 supported by the slidingblock 5 causes the rotation of thebar 3 about the longitudinal axis of thepole 4. - The
slider 9 is provided furthermore with amechanism 9b adapted to impart a rotation, termed second rotation, to thebar 3 along an axis that is substantially perpendicular to thepole 4 so as to allow its lowering. In the preferred embodiment, themechanism 9b is provided as a right-angled crank, which, as a function of the position of thefollower 9a, lifts or lowers, i.e., rotates along an axis that is perpendicular to thepole 4, thebar 3. For example, according to one embodiment, if thefollower 9a is located at the highest point of thecam 8, then themechanism 9b acts on thebar 3 so that it is in a horizontal position (parallel to the resting surface of the turnstile 1), while when it is in the lowest point of the path thebar 3 is in a vertical position (at right angles to the resting surface of the turnstile 1). Themechanism 9b can be provided also in a different manner, for example by means of a device of the Uniball type. Therefore, the movement of theslider 9 causes the lifting and lowering of thebar 3. -
Figure 2 is a perspective view of theturnstile 1 in which theexternal enclosure 2 is not shown. -
Figure 3 is a perspective view of the upper part of theturnstile 1, which is preferably adapted to be contained in thecomponent 2b. The configuration of the components shown inFigure 3 preferably corresponds to the configuration in which thebar 3 is horizontal and prevents user passage. In particular, theroller 9a is in the highest position with respect to thecam 8 and thecrank 9b keeps thearm 9b" that supports thebar 3 in such a position that thebar 3 is in the horizontal configuration. The rotation of the enclosure orjacket 2b causes the movement of theroller 9a along thepath 8a of the cam 8: accordingly, theslider 9 slides along thepole 4. During sliding, thecrank 9b, which is pivoted in thepoint 9b', rotates thearm 9b" along aseat 9c obtained from theslider 9. Conveniently, therefore, the crank 9b and thearm 9b" can provide a kinematic system of the rod-and-crank type. Theseat 9c can be provided as a discontinuity of theslider 9. When theroller 9a reaches the lowest point of thepath 8a (i.e., it has rotated through approximately 90°, moving to a low point of the path), the crank 9b acts on thebar 3, lowering it completely. A new rotation through 270° turns thebar 3 to the initial position. -
Figure 4 shows in greater detail some elements ofFigure 1 , i.e., thebrushless servomotor 6, thepinion 6a' of the first reduction stage, the eccentric shaft of thesecond reduction stage 6a" and the supportingpole 4. In particular, the first reduction stage comprises a hollow gear which turns an eccentric shaft of the second reduction stage. The first reduction stage can be contained in a cup-shaped support. -
Figure 5 shows with greater detail some elements ofFigure 1 and in particular the stator of the second reduction stage and the coupling on the external pole connected to the footing. -
Figure 6 shows with greater detail thecycloidal gear 7b of the second reduction stage 7. For the sake of simplicity in description, the figure does not show thecomponent 7c, which is to be understood as being part of the lower part of theturnstile 1. Thecomponent 7c is provided with holes that can be engaged with play on pins (four are shown in a nonlimiting manner in the figure) of thecomponent 7b. The second stage can comprise an eccentric shaft that is coupled on a fixed "pin wheel" which, for each turn of the eccentric shaft, skips by one pin, reducing the rotation speed by preferably 1:21. - Operation of the turnstile according to the invention is as follows.
- The
turnstile 1 is an initial position for blocking access, in which thebar 3 is parallel to the resting surface of theturnstile 1, i.e., in a horizontal position, assuming the configuration shown inFigure 7a . It is assumed that the passage controlled by theturnstile 1 is the one arranged on the right side of thepole 4 as shown inFigure 7a and that the user accesses from the left side ofFigure 7a , in which thebar 3 is arranged. - As a consequence of a given command (for example received by an external control unit or obtained on the basis of a reading of a badge for access control), the
bar 3 that is in the initial position begins to move. In particular, since theslider 9 rotates about thepole 4, thebar 3 also rotates about thepole 4. Additionally, however, theslider 9 slides along thepole 4 due to the path followed by theroller 9a on theedge 8a' of thecam 8. As a consequence of the variation of the position of theslider 9, themechanism 9b moves thebar 3, making it gradually lower or collapse until it assumes the vertical position. In particular,Figure 7b shows one of the intermediate positioning steps, i.e., a configuration in which the bar is inclined with respect to the pole by a lowering angle that is preferably comprised between 0° and 90°. -
Figure 7c shows the configuration assumed by thebar 3 as a consequence of a rotation through 180° with respect to the initial position: thebar 3 is displaced on the opposite side with respect to the one where thebar 3 was in the initial position: thebar 3 is completely lowered and has assumed a vertical position. At this point thebar 3 is on the opposite side with respect to the user, does not hinder passage but advantageously does not cause space occupation since it is against theturnstile 1. Advantageously, theturnstile 1 can therefore be installed next to a wall or even next toother turnstiles 1. Once thebar 3 has been lowered, the user can thus cross the turnstile. - The
bar 3, therefore, continues to move gradually, rotating and assuming the intermediate configuration shown inFigure 7d , continuing its motion until it assumes again the initial configuration shown inFigure 7a . Upon completion of the rotation, thefollower 9a is located in the initial position again and accordingly theslider 9 also is in the initial position, preferably at a maximum height on thepath 8a, which entails repositioning thebar 3 in the initial locking portion, i.e., parallel to the ground. Thebar 3 then closes directly behind the user that has passed, rendering advantageously unnecessary a photocell for detecting the presence or passage of the user. Preferably, theturnstile 1 is provided furthermore with at least one sensor that detects the correct placement of thebar 3 and in particular the correct stop position of thebar 3. - Preferably, the
turnstile 1 is provided with means for processing a command, which cause the movement of thebar 3. The command might be received from an external control unit and for example might consist in making theturnstile 1 assume, in an emergency situation, the configuration for free passage of users (bar 3 lowered, perpendicular to the ground). - The command can also be obtained, typically in conditions for ordinary use of the
turnstile 1, on the basis of a reading of a badge for access control on the part of a reader connected to the processing means. - It has thus been shown that the method and the system described achieve the intended aim and objects. In particular, it has been shown that the system thus conceived allows to overcome the qualitative limitations of the background art. In particular, the
turnstile 1 according to the invention allows to achieve the advantages of conventional turnstiles without being affected by their defects. In fact, advantageously thebar 3 follows a path that is entirely similar to the cone traced by a tripod turnstile, without however causing a space occupation since it does not protrude on the opposite side with respect to the side for the passage of the user. - Furthermore, advantageously it is possible to deactivate the
turnstile 1 in case of emergency, stopping thebar 3 in a vertical position. The turnstile ensures reversibility, which is provided by the fact that the turnstile can operate identically for clockwise or counterclockwise rotations: in any case, thebar 3 lowers and rises again behind the user. - Clearly, numerous modifications are evident and can be performed promptly by the person skilled in the art without abandoning the protective scope of the appended claims. For example, nothing forbids the use of a photocell if deemed appropriate. Moreover, it is possible to use a capacitive sensor within the body of the bar in order to detect the mass of the human body of the user who is crossing the turnstile.
- Therefore, the scope of the protection of the claims must not be limited by the illustrations or preferred embodiments shown in the description by way of example.
- Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.
Claims (12)
- A turnstile (1) for access control, comprising:- a supporting pole (4);- a motor (6);- an access obstruction bar (3) connected to said pole (4);said access obstruction bar (3) being adapted to rotate about a substantially parallel axis and a substantially perpendicular axis with respect to the longitudinal axis of the pole (4) so as to pass from a horizontal position, in which it is substantially perpendicular to said pole (4), to one or more intermediate positions, in which it is inclined with respect to said pole (4), and to a vertical position, in which it is substantially parallel to said pole (4), characterized in that it further comprises:- an enclosure (2) having a first component (2a) that is integral with a fixed surface and a second component (2a) that can rotate; said enclosure (2) having a cavity adapted to contain said supporting pole (4), which is integral with said first component (2a), said pole (4) extending parallel to the longitudinal extension of the enclosure (2);- said motor (6) being adapted to be contained in said enclosure (2) and to turn said second component (2b) by means of a reduction unit (7);- a slider (9) associated rotatably and slidingly with said pole (4), said slider (9) being moreover connected to said bar (3) and to a sliding block (5) that is integral with said rotatable component (2b);- a cam (8) which is integral with said pole (4) and is adapted to be arranged between said reduction unit (7) and said slider (9);said slider (9) being provided with a follower (9a) adapted to slide along a contact surface of said cam (8), said contact surface forming a path (8a) having at least two points arranged at different heights;
said bar (3) being adapted to rotate about said substantially parallel axis and said substantially perpendicular axis with respect to the longitudinal axis of the pole (4) depending on the position of said follower (9a) on said path (8a). - The turnstile according to claim 1, characterized in that said reduction unit (7) is of the cycloidal type and comprises a ring gear (7a) with pins, a male cycloidal gear (7b) and a second ring gear (7c).
- The turnstile according to claim 2, characterized in that said second ring gear (7c) comprises a screw-type retention element adapted to engage said second component (2b) so as to make it rotate by transmitting thereto the motion generated by said motor (6).
- The turnstile according to one or more of the preceding claims, characterized in that said slider (9) is connected to said bar (3) by means of a mechanism (9b) connected to an arm (9b'); said arm (9b') being adapted to support said bar (3) and to move within a seat (9c) formed in said slider (9); said mechanism (9b) and said arm (9b') being designed to rotate said bar (3) about an axis that is substantially perpendicular to the axis of said pole (4) depending on said position of said follower (9a) on said path (8a).
- The turnstile according to claim 4, characterized in that said mechanism (9b) comprises a right-angled crank or a device of the Uniball type; said follower (9a) of said slider (9) comprising a roller or a cam follower bearing.
- The turnstile according to one or more of the preceding claims, characterized in that said motor (6) actuates reduction gears (6a) adapted to mesh with said reduction unit (7).
- The turnstile according to claim 6, characterized in that said reduction gears (6a) have a 1:3 reduction ratio; said reduction unit (7) having preferably a 1:21 reduction ratio.
- The turnstile according to one or more of the preceding claims, characterized in that said cam (8) is substantially frustum-shaped, preferably hollow, with an elliptical cross-section, the edge of said elliptical cross-section forming said contact surface for said follower (9a).
- The turnstile according to one or more of the preceding claims, characterized in that said bar (3) is capable of performing a 360° rotation about the longitudinal axis of said pole (4); said bar (3) being of the lowerable type and being adapted to pass reversibly from a first position, in which said bar (3) is substantially perpendicular to said pole (4) so as to block an access, and a second position, in which said bar (3) is substantially arranged parallel to said pole (4) so as not to hinder access.
- The turnstile according to one or more of the preceding claims, characterized in that said bar (3) has an associated lowering angle, the breadth of which is a function of the rotation angle of the bar (3) about an axis that is parallel to said pole (4).
- The turnstile according to claim 10, characterized in that said lowering angle is equal to:a) substantially 90° when said rotation angle is substantially 0°;b) substantially 0° when said rotation angle is equal to or greater than 90°;c) substantially 90° when said rotation angle is equal to substantially 360°.
- The turnstile according to one or more of the preceding claims, characterized in that it comprises means for processing a command for causing the motion of said bar (3), said command being received by an external control unit or obtained on the basis of a reading of a badge for access control.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUB2015A003672A ITUB20153672A1 (en) | 2015-09-16 | 2015-09-16 | TURN FOR ACCESS CONTROL. |
PCT/EP2016/071712 WO2017046173A1 (en) | 2015-09-16 | 2016-09-14 | Turnstile for access control |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3350401A1 EP3350401A1 (en) | 2018-07-25 |
EP3350401B1 true EP3350401B1 (en) | 2019-12-11 |
Family
ID=54884242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16774879.7A Active EP3350401B1 (en) | 2015-09-16 | 2016-09-14 | Turnstile for access control |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3350401B1 (en) |
IT (1) | ITUB20153672A1 (en) |
WO (1) | WO2017046173A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017122562A1 (en) * | 2017-09-28 | 2019-03-28 | Wanzl Metallwarenfabrik Gmbh | Swivel bracket system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6185867B1 (en) * | 1999-03-26 | 2001-02-13 | Mcguire John Dennis | Entrance control device for sequential displacement of a plurality of barriers |
DE502004002179D1 (en) * | 2004-06-21 | 2007-01-11 | Skidata Ag | turnstile |
EP2717235B1 (en) * | 2012-10-04 | 2015-01-07 | Skidata Ag | Access control device for persons in the form of a turnstile |
-
2015
- 2015-09-16 IT ITUB2015A003672A patent/ITUB20153672A1/en unknown
-
2016
- 2016-09-14 WO PCT/EP2016/071712 patent/WO2017046173A1/en active Application Filing
- 2016-09-14 EP EP16774879.7A patent/EP3350401B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3350401A1 (en) | 2018-07-25 |
ITUB20153672A1 (en) | 2017-03-16 |
WO2017046173A1 (en) | 2017-03-23 |
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