CN100455875C - Mechanical safety device with hinge for automatic equipment and accident protection board - Google Patents
Mechanical safety device with hinge for automatic equipment and accident protection board Download PDFInfo
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- CN100455875C CN100455875C CNB2006101081571A CN200610108157A CN100455875C CN 100455875 C CN100455875 C CN 100455875C CN B2006101081571 A CNB2006101081571 A CN B2006101081571A CN 200610108157 A CN200610108157 A CN 200610108157A CN 100455875 C CN100455875 C CN 100455875C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/08—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts
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- General Engineering & Computer Science (AREA)
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Abstract
The invention is used in the technical field of an electrical safety device, in particular relates to a safety device designed as hinges to be positioned at safety cover, the device comprises: a fixed box-shaped element (4) on the machine or equipment for defining a first axes (X); at least one movable element (2) fixed on a guard plate (P); a hinge device (7) for reelingly connecting the fixed member (4) with the movable member (2) around the second axes (W); at least one fixed electric contact (6') and at least one movable electric contact along a first axes (X) for connecting or disconnecting a circuit (5) to supply power to the machine or equipment; a conversion device (8) for switching the rotary movement of the movable element (2) to a translational movement (X) of the movable contact (6). The first axis (X) is substantially parallel or overlapped to the second axis (W), wherein the translatory member (10) of the movement conversion device (8) is directly connected with the hinges device (7) without connecting reversing mechanism or transferring mechanism in middle.
Description
Technical field
The present invention be applied in the field of electrical safety devices and particularly including a kind of safety installations that is provided with hinge in pattern described in the preamble of claim 1 as theme, this safety installations is used for the safety control plate.
Background technique
Known automatic equipment and operational site, it is equipped with the parts of dangerous motion or uses dangerous material, particularly irritating liquid therein, need suitable protective equipment, suffer or even serious injury so that prevent the operator that on the diverse location of working equipment, are responsible for.
For this reason, equipment has the protection apron that is provided with along the periphery of self, and it constitutes a barrier between the part of operator and danger, and therefore prevents to contact with the accident of parts that move or hazardous material.Protection apron is equipped with suitable safety installations, if the repair operation of the different part of one or more parts that must implementation equipment or calibration operation and when by mistake or wittingly protection apron being opened by operator, it shuts down the whole equipment and/or the part of regulation.This device comprises safety switch, and it is installed on the support of protective equipment or on the hinge, utilizes hinge to set up being connected between protection apron and the machinery mount.This switch can also be positioned on hinge or the fixing pin at hinge and be installed on the supporting frame of structure under one situation of back.
The switch that is directly installed on the protective equipment uses an operator, and it also moves into simultaneously and shift out in the gap that for this reason is provided with the electric contact alternating action in the process of the opening and closing of protective equipment, and this gap is formed on the housing of switch.These motions with disconnect with connect electric contact corresponding and therefore with the predetermined accordingly point of contact of the minimum open-angle of protection apron on switch on and off equipment.
But this known solutions has shortcoming for certain, not only needs accurate adjustment when the installation of equipment but also in the using process at equipment.Therefore the displacement of operator with respect to the gap take place for because the kinetic wearing and tearing of opening and closing that continue of protection apron are extremely responsive in same such device.Therefore the inlet gap of operator is contaminated easily in addition, and such scheme is not suitable on food apparatus and uses.
Other scheme, wherein switch is positioned at outside the hinge, and the pin of hinge is used as operator, and switch is installed thereon.Therefore this utilize the rotation of pin, so that the contact is disconnected and the therefore running of arrestment.
But the shortcoming of such scheme is that the safe hinge of making like this has complex installation and needs the substitutions and modifications of the pin of above-mentioned hinge.Therefore the installation time must be that long and mounting cost are high.So in addition scheme does not solve such problem, promptly however the inside adjustment of contact be still essential so that determine the point of contact of device.
Other scheme has the contact that is provided with on operator in addition, its be not operate simultaneously and therefore cause difficulty when determining point of contact.Known equally, the switch of pattern has a plurality of fixing contacts like this, they by with corresponding movable contact be connected alternating action so that randomly connect suitable circuit.Each circuit of its disconnection or connection can be used the contact of four fixing contacts and four activities for people.In such a way and mode reduces voluntarily because movable contact may stick on the corresponding fixing contact or because the possibility that the outside accumulation of particulate between each contact causes safety installations to interrupt.The shortcoming of such known solutions is that for certain size, shape and the positioning tolerance of movable contact and fixing contact significantly reduces the adhering zone between movable contact and the fixed contact, goes wrong thus when flowing through electric current.Thereby the wearing and tearing of this outer contact can cause the rapid reduction and the frequent replacing of needs of contact area.
By EP-B1-12 39 496 known a kind of safe hinges, it has a device that is used to adjust point of contact, this device comprises a pin, it passes to the operator of circuit with rotatablely moving of self by a lever system that is used for transmission of movement, this lever system converts the rotation of hinge to the straight line motion of electric contact.
But the shortcoming that this scheme has is, must comprise a leverage so that convert rotatablely moving of protective equipment motion the straight line motion of operator to, and this leverage comprises a plurality of elements, and they interconnect with small gap.Draw strong property easy to wear thus, therefore it can cause the operation defectively of whole device rapidly.Therefore the latter does not have the point of contact that remains unchanged during its mechanical life, and needs regular adjustment to contact with calibration.Therefore the replacement of whole hinge is essential under the situation of inaccurate adjustment.Another of this scheme is limited in, and the maximum open of hinge does not allow above 180 °.
Summary of the invention
The objective of the invention is to, eliminate above-mentioned shortcoming by a kind of safety installations that is provided with hinge that is used for the safety control plate is provided, this safety installations has characteristic of the usefulness of demonstrating and lower cost.
Special purpose is to provide a kind of safety installations that is provided with hinge, make its can by extremely simple mode and method and with a spot of parts with the transmission of movement of protective equipment to circuit.
Another purpose is to provide a kind of safety installations, and it is saved the space and has the high wear resistance of variant parts, the operation of these each electric contacts of component controls, and it was extremely accurately and reliably and guarantees constant point of contact during the entire life of self.
Another object of the present invention is to provide a kind of device, make it can simply and immediately adjust point of contact, and also allow further to adjust after encapsulation, wherein however it is still reliably.
Another purpose is also particularly in providing a kind of device, and it is firm in small-sized, prevent work residue or other pollutant inside deposition and need only remove these deposits simply at last.
These purposes and other the purpose that occurs more significantly following, reach according to the described safety installations that is provided with hinge of claim 1 by a kind of, this device comprises as follows: fixing box shaped member, and it can be fixed on the fixing part of machinery or equipment and determine a first axle; The element that at least one is movable, it can be fixed on the protection apron of machinery or equipment; Hinge means is used for the element and movable element that can be connected and fixed rotatably around one second axis; The electric contact that at least one is fixing and at least one electric contact along the activity of first axle are used to realize the disconnection and the connection of corresponding circuit; Be used for converting the rotatablely moving of element of activity the device of movable contact to along the translational motion of first axle; But and comprise at least one rotatable parts and at least one parts with respect to the second axis translation.
The invention is characterized in that first axle is arranged essentially parallel to or coincides with second axis.But the parts of the translation of movement transforming device are directly connected in hinge means in addition, and the centre does not connect motion changement or movement transferring.
Can set up direct connection between the starting drive of fixed element and electric contact on the protection apron owing to should special structure make device of the present invention, and do not need the middle of lever system or other motion changement or movement transferring to connect, therefore it be to realize simply and by few parts, therefore obtains advantage economically for certain.Movement transforming device and hinge means are saved the space whereby on same axis.
Movement transforming device preferably can comprise plane curve device (face cam device).Described plane curve device can also have an axial protuberance on a projecting end of pin at least, and this protuberance has a pressure side that tilts.
But the parts of the translation of movement transforming device can comprise a prismatic body in addition, and it supports slidably and rotatably be locked in the axial bearing of the prismatic complementary shape of fixed element inside.
In addition, curve device (cam gear) can have the axial notch that at least one comprises at least one pressure slope, this groove points to pressure surface ground and constitutes on prismatic body, so that concur with the latter, thereby but as to moving element with respect to fixed element in relative rotation the response make translation the rotatable relatively parts of parts away from or approaching.
Advantageously a slide plate can be set, its along first axle be supported on slidably in the fixed element and and work be connected in movable contact so that make the disconnection/connection of corresponding circuit.This slide plate has a projecting end, the prismatic body of its backstop so that when the lock rotation by prismatic body translation.
Because special form of implementation of the present invention provides a kind of device of saving the space.This external curve connects (cam connections) and can utilize the high wear resistance of the parts of different control operations to start the contact, guarantees the extremely accurate of device thus and reliable functioning mode and constant point of contact during its entire life.
Advantageously, described device can comprise that one is screwed into the adjusting screw in the hole of prismatic body, so that the off position/on positi of the corresponding relatively fixed contact of movable contact is regulated on fine setting ground.This export trade can have a hole that axially connects, and it is in alignment with adjusting screw, so that allow approaching from the outside.
Because above-mentioned last characteristic, device of the present invention can make things convenient for and immediately adjust the point of contact of self and make simultaneously and also allow further to adjust after sealing, and however it is still the action of any carelessness reliably simultaneously.
Advantageously, box shaped member can be equipped with the LED warning device on self surface.Provide a kind of safety installations with method in such a way, this safety installations can prevent that work residue or other pollutant are deposited in its inside except that firm and small-sized structure, can also report to the police at once under the situation of incorrect operation at last.
Description of drawings
Of the present invention other characteristic and advantage by the safety installations that is provided with hinge of the present invention preferably but be not that the detailed description of unique form of implementation becomes more obviously, this safety installations is shown by accompanying drawing with exemplarily and not providing constraints, wherein:
The view of the special application of Fig. 1 device of the present invention in a working equipment;
The part of Fig. 2 safety installations of the present invention is the view of expression separately;
The phantom of the device of Fig. 3 Fig. 2 planar interception of I-I along the line in the first operation configuration;
The plan view of Fig. 4 Fig. 3;
The phantom of the device of Fig. 5 Fig. 2 planar interception of I-I along the line in the second operation configuration;
The plan view of Fig. 6 Fig. 5;
The perspective view of the first thin portion of Fig. 7 Fig. 2;
The front elevation of the first thin portion of Fig. 8 Fig. 7;
The plan view of the second thin portion of Fig. 9 Fig. 7;
The sectional view of another thin portion of Figure 10 Fig. 2;
The view of the assembling of first form of implementation of Figure 11 apparatus of the present invention;
The view of the assembling of second form of implementation of Figure 12 apparatus of the present invention.
Embodiment
The device of totally representing with reference character 1 according to the present invention with reference to above-mentioned accompanying drawing can be one to be provided with the safety installations of hinge, this safety installations can be applied in automatic working equipment or its part as on the safety control plate of representing among Fig. 1.
Consistent with the present invention, this safety installations is installed on the safety control plate P by the element 2 of an activity, and this element 2 is by traditional fixing device screw or be bolted on the plate P for example, and each fixing device can be embedded in the bearing 3 that suitably constitutes on the element 2.Fixing box shaped member 4 realizations by fix of whole on the other hand device 1 on the support member S of automatic or equipment, this element 4 comprises the part of the parts of device 1.Element 4 that should be fixing is made by metallic material etc., and wherein it always has the load of suitable resistance characteristic in order to support plate P.
The switching on and off respectively the disconnection by one or more circuit 5 and connect and realize of device 1, this moment by each circuit and corresponding contact to 6,6 ' be connected, it is interior and wherein at least one can move along the first longitudinal axis X that they are contained in fixing box shaped member 4.
Therefore be provided with the element 2 that is used for activity and be converted to the conversion equipment 8 of the device of movable contact 6 along the translational motion of first axle X around rotatablely moving of the second axis W.
Described conversion equipment 8 comprise one can parallel translation with respect to the rotatable parts 9 of the second axis W and with respect to the second axis W parts 10.
A special characteristic of the present invention constitutes like this, promptly along the translational motion x of the electric contact 6 of first axle X realization activity, described first axle is arranged essentially parallel to or coincides with the second axis W, and fixed element 2 is rotated w around the described second axis W on the other hand.
But the parts 10 of translation in addition are directly connected in hinge means 7, and do not connect for example device such as lever system of motion changement or movement transferring in the middle of it.
Hinge means 7 is via a pair of arm 11,11 ' transmitting movement, each arm by the element 2 of activity to a transverse direction Y stretch out and be bearing in corresponding cylinder support 12,12 ' on, described bearing be formed in each axial end 13,13 of fixing element 4 ' on.Arm 11,11 ' make one with movable element 2.
As shown in Fig. 3 to 6, the rotation φ ' of the rotatable parts 9 of movement transforming device 8 is equal to movable fixed element 2 with respect to fixing element 4 and therefore with respect to the rotation φ of equipment as special.
In order to set up being connected between pin 14 and the affiliated bearing 12, a sleeve 15 and a seal ring 16 are provided, they are concentric with pin 14 and install.Sleeve 15 is for to constitute from the pattern of hinge and by plastics.
In order to ensure certain connection of two parts and prevent relative rotational slide, arm 11 has a cross through hole 17 in order to insert a fixed central spindle 18, and it is halved together with the bearing 19 that constitutes on the side surface 20 of pin 14.
But so parts 10 alternating actions of rotating dog 14 and corresponding translation, and but described member of translational comprises a prismatic body 21, and this prism body is supported on one slidably in fixing element internal axial bearing 22 that constitute and that have the shape that is complementary to prismatic body 21.
In order to ensure prismatic body 21 and axial being connected between the bearing 22, prismatic body 21 its each transverse end 23,23 ' on have the guide rail 24,24 of a pair of longitudinal extension ', they with corresponding on fixing element 4 inner lateral surfaces 26 guide channel 25,25 ' be halved together of formation.Force prismatic body to move with method in such a way with translation x along first axle X.
Realize being connected between pin 14 and the prismatic body by means of plane curve device (face cam device) 27.As shown in Fig. 7 to 9, device 27 comprises the part 28 of an annular, and this annular part 28 is concentric with and is fixedly connected on the axial end that overhangs 29 of pin 14.Described annular portion 28 be equipped with a pair of axial protuberance 30,30 ', they be diametrically contraposition and have respectively a pair of having with respect to an axial radial plane
a The pressure side 31 of opposite slope and they are by the second axis W.These protuberances 30,30 ' by means of each pressure side 31 and the groove 32, the 32 ' alternating action that on the tangible annular portion 33 of prismatic body 21, constitute respectively.The a pair of pressure slope 34 of two grooves 32,32 ' have, they are opposed and have a gradient, the gradient of the pressure side 31 that this gradient is relative with each is corresponding, thus they and the latter is halved together or throw off from it.
Not only each pressure side 31 but also each corresponding inclined-plane 34 have fully outstanding horizontal configuration, thereby even so that the operation that when the strong degree of wear, also can guarantee the connection that continues of movement transforming device 8 and guarantee to continue, the described degree of wear is owing to cause the long-term service time of device 1.Preferred groove 32,32 ' have different expansion arcs with corresponding axially protuberance 30,30 ' also
D, d ' are so that can realize unique connection.Could be in later initial position with 1 same of square law device again 360 ° of turn overs in such a way also guarantees unique operation simultaneously and therefore guarantees bigger Security.
Cause the rotation φ ' of pin 14 therefore to produce pressure on prismatic body 21 by the rotation φ of protection apron P by means of fixed element 2, it is because downward translation of blocking-up of rotation and therefore act on basically on the slide plate 35 of longitudinal extension.The latter is supported in the housing 36 slidably, this housing 36 be positioned at fixing box shaped member 4 and comprise each contact 6,6 '.In addition slide plate 35 work be connected in each movable electric contact 6 and therefore its with starting circuit 5, this moment movable contact 6 be connected in corresponding fixed contact 6 '.
Described slide plate 35 has a projecting end 37, the prismatic body 21 of this projecting end backstop.When the rotation φ of the parts 2 of activity, so movement transforming device 8 is by means of the translational motion X of the electric contact of the parallel motion operative activities of slide plate 35, slide plate 35 as thereon responses along first axle X translation.As apparent by Figure 10, because slide plate 35 is fixed on the contact 6 of each motion, make slide plate 35 take each contact 6 out of with method in such a way and, connect this moment or the power supply circuits 5 of disassemble machinery or equipment in this case with fixing contact 6 in each is contained in housing 36 ' connect or cause with it and separate.
According to preferably of the present invention but be not unique form of implementation, it is shown in each accompanying drawing, be provided with four pairs of electric contacts 6,6 ', they do not need just to adjust and can operate simultaneously, thereby improve contact reliability.In addition, according to each movable contact 6 of man-to-man configuration and a unique fixing contact 6 ' be connected.Can be connected in for example PLC of a logic control device with method first circuit in such a way, and other two pairs of circuit that contact control is communicated with a security module.
The warning light that above-mentioned circuit is preserved for for example being used for any one other the equipment of equipment the working state of protection apron at last is connected.The existence of a plurality of contacts guarantees that equipment has a bigger Security and makes it can observe the safety specification of industry.
In order to ensure being connected of continuing between slide plate 35 and the prismatic body 21; advantageously be provided with the element 38 of elastic reaction; it is essentially a helical spring of installing in the inside of housing 36, and this helical spring affacts on the slide plate 35 and is pressed to prismatic body 21 simultaneously.
For setting up the function that the needed translation of this connection forms point of contact, this point of contact is as essential minimum corner, so that by means of the startup of the disconnection implement device 1 of circuit 5.Must this point of contact of preset when device 1 is installed.Carry out its calibration so that the initial separation of adjustment slide plate 35 and prismatic body 21 by means of an adjusting screw 40.By being screwed into, screw 40 is installed in the tapped hole 40 that axially constitutes in the prismatic body 21.Carry out the adjustment of screw 40 from top by a hole 42 that axially connects by extremely simple mode and method, this hole 42 is formed on the pin 14, and a sealing plug 43 can be installed, so that prevent the operation neglected.
In addition, second cylinder support 12 of fixed element 4 ' can be by the supporting cable 46 or an electric connecting terminal of circuit 5, this second cylinder support is opposite to first bearing, 12 longitudinal extensions.This second bearing 12 ' can or be formed in as shown in Figure 11 on the diapire 47, or be formed in as shown in Figure 2 on the wall 44 and the aesthetics of retaining mechanism thus.
It is evident that by above description, the purpose of the present invention by providing a kind of safety installations that is provided with hinge to reach regulation, described safety installations allows the transmission of movement of protective equipment on circuit by extremely simple mode and method and with a spot of parts.
In addition, because the special form of implementation of movement transforming device provides a kind of device of saving the space, it has the high wear resistance of each different parts, and controls the operation of each electric contact.Therefore this device is split hair and reliable.
Device of the present invention can be the theme of multiple modification and modification, and it all falls within the inventive concept that illustrates in the appending claims.Whole parts can be replaced by other the element of technical equivalence and material can have different character on demand, and do not depart from the scope of the invention simultaneously.
Although describe this device especially with reference to the accompanying drawings, in specification and the reference character that in claims, uses still be used to improve the understanding of the present invention and never be interpreted as restriction the protection domain that requires.
Claims (15)
1. safety installations that is provided with hinge, this safety installations are applied on the safety control plate (P) of automatic equipment and machinery, comprise as follows:
The fixed element of box-like (4), the fixed element of this box-like (4) are fixed on the part (S) of fixing of machinery or equipment, and definite first axle (X);
At least one movable element (2), this movable element (2) are fixed on the protection apron or protective door (P) of machinery or equipment;
Hinge means (7) is used for and can be connected and fixed element (4) and described at least one movable element (2) rotatably around one second axis (W);
The electric contact (6 ') that at least one is fixing, the electric contact (6 ') that should fix is installed in the inside of fixed element (4), with at least one electric contact (6), be used to realize that the disconnection of a corresponding circuit (5) and connection are so that to machinery or power devices along the activity of first axle (X);
Rotatablely move (w) that be used for described at least one movable element (2) is converted to the movement transforming device (8) of movable contact (6) along the translational motion (x) of first axle (X), wherein movement transforming device (8) comprise rotatable parts (9) and with respect to second axis (W) but the parts (10) of translation;
It is characterized in that, first axle (X) is arranged essentially parallel to or coincides with second axis (W), wherein movement transforming device (8) but the parts (10) of translation be directly connected in hinge means (7), and in the middle of movement transforming device and hinge means, be not connected motion changement or movement transferring.
2. according to the described device of claim 1, it is characterized in that, hinge means (7) comprises at least one pair of arm (11,11 '), and described arm stretches out and is bearing on the fixed element (4) in fixed element (4) axial end (13,13 ') from described at least one movable element (2).
3. according to the described device of claim 1, it is characterized in that, the rotatable parts (9) of movement transforming device (8) comprise a rotating dog (14), and this rotating dog is fixed on one of described arm (11) and goes up and rotatably insert in columniform basically first bearing (12) of axial end (13) of fixed element (4).
4. according to the described device of claim 3, it is characterized in that described movement transforming device (8) comprises plane curve device (27).
5. according to the described device of claim 4, it is characterized in that curve device (27) comprises the axial protuberance (30) at least one projecting end in pin (14) (29), this protuberance has the pressure side (31) of at least one inclination.
6. according to the described device of claim 5, it is characterized in that, described movement transforming device (8) but the parts (10) of translation comprise a prismatic body (21), it supports slidably and rotatably is locked in the axial bearing (22) of prismatic complementary shape of fixed element (4).
7. according to the described device of claim 6, it is characterized in that, curve device (27) comprises that at least one has the axial notch of at least one pressure slope (34) (32), this pressure slope is gone up the sensing pressure side at prismatic body (21) and is constituted (31), so that concur with pressure side, thus as to the relatively rotating of the relatively-stationary box shaped member of element (2) (4) of activity (φ) but response make translation the rotatable relatively parts of parts (10) (9) away from or approaching.
8. according to the described device of claim 7, it is characterized in that described at least one protuberance (30) and at least one groove (32) are formed on the corresponding annular basically concentric part (28,33) of pin (14) and prismatic body (21).
9. according to the described device of claim 1, it is characterized in that, this safety installations comprises a pair of protuberance (30,30 ') and a pair of groove (32,32 '), wherein both have a pair of pressure surface (31) and a pair of pressure slope (34) respectively, described pressure surface and described pressure slope have the opposite gradient with respect to an axial radial plane (a), and this radial plane (a) is by second axis (W).
10. according to the described device of claim 8, it is characterized in that, this safety installations comprises a slide plate (35), this slide plate is supported on the inside of fixed element (4) slidably along first axle (X), its middle slide plate (35) work is connected in described at least one movable contact, so that make the disconnection or the connection of corresponding circuit (5).
11. according to the described device of claim 10, it is characterized in that, slide plate (35) has a projecting end (37), the prismatic body (21) of the projecting end backstop of slide plate, so that when pin (14) rotation (φ ') by prismatic body translation, wherein be provided with flexible counteractive element (38), this flexible counteractive element affacts on the slide plate (35), so that the projecting end of slide plate (37) keeps in touch with prismatic body (21) usually.
12. according to the described device of claim 6, it is characterized in that, this safety installations comprises an adjusting screw (40), the inside that this adjusting screw is screwed into prismatic body (21) is provided with in the hole (41) of screw thread, so that off position or the on positi of described at least one movable contact (6) with respect to corresponding fixed contact (6 ') regulated on fine setting ground.
13., it is characterized in that pin (14) has the hole (42) of axial perforation according to claim 3 or 11 described devices, this hole is in alignment with adjusting screw (40), so that allow approaching from the outside.
14., it is characterized in that this safety installations comprises a plurality of fixing electric contacts (6 ') and movable electric contact (6) according to the described device of claim 10, they are installed in the housing (36), this housing (36) is given for supporting plate (35) slidably.
15., it is characterized in that the fixed element of box-like (4) comprises LED-warning device (48) according to the described device of claim 1, this LED-warning device is installed on the outer surface (49) of fixing element (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITVI20050216 ITVI20050216A1 (en) | 2005-07-29 | 2005-07-29 | HINGE SAFETY DEVICE APPLICABLE TO SAFETY PROTECTION PANELS FOR MACHINES AND AUTOMATIC SYSTEMS |
| ITVI2005A000216 | 2005-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1904458A CN1904458A (en) | 2007-01-31 |
| CN100455875C true CN100455875C (en) | 2009-01-28 |
Family
ID=37673772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101081571A Active CN100455875C (en) | 2005-07-29 | 2006-07-28 | Mechanical safety device with hinge for automatic equipment and accident protection board |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100455875C (en) |
| DE (1) | DE102006027585B4 (en) |
| IT (1) | ITVI20050216A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2466834A (en) * | 2009-01-12 | 2010-07-14 | Stephen Christopher Hammond | Safety system for an IS machine having a pin and sensor in a guard hinge |
| ITVI20120344A1 (en) * | 2012-12-28 | 2014-06-29 | Pizzato Elettrica Srl | MULTIPLE ZERO SIGNAL SAFETY SWITCH FOR MOBILE PROTECTION BARRIERS |
| ITVI20120345A1 (en) * | 2012-12-28 | 2014-06-29 | Pizzato Elettrica Srl | ELECTRONIC SAFETY HINGE SWITCH |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049934A (en) * | 1976-07-30 | 1977-09-20 | Lawrence Brothers Inc. | Security hinge having adjustable cam operator and reciprocable cam follower actuated switch |
| US4168409A (en) * | 1978-08-14 | 1979-09-18 | Lawrence Brothers, Inc. | Security hinge with sealed switch and operator concealed therein |
| US4841283A (en) * | 1987-12-21 | 1989-06-20 | Southern Steel Company | Security hinge utilizing concealed radiative sensing to detect hinge position |
| US4922064A (en) * | 1989-03-08 | 1990-05-01 | Adtec Incorporated | Door position indicator |
| US20020125116A1 (en) * | 2001-03-06 | 2002-09-12 | Bernstein Ag | Switch hinge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066857A (en) * | 1975-07-24 | 1978-01-03 | Stanley Works | Switch activating hinge having reciprocating cam follower switch actuator |
| DE9318787U1 (en) * | 1993-12-08 | 1994-02-10 | Haase, Gerhard, 58091 Hagen | Hinge with safety switch |
-
2005
- 2005-07-29 IT ITVI20050216 patent/ITVI20050216A1/en unknown
-
2006
- 2006-06-14 DE DE200610027585 patent/DE102006027585B4/en active Active
- 2006-07-28 CN CNB2006101081571A patent/CN100455875C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049934A (en) * | 1976-07-30 | 1977-09-20 | Lawrence Brothers Inc. | Security hinge having adjustable cam operator and reciprocable cam follower actuated switch |
| US4168409A (en) * | 1978-08-14 | 1979-09-18 | Lawrence Brothers, Inc. | Security hinge with sealed switch and operator concealed therein |
| US4841283A (en) * | 1987-12-21 | 1989-06-20 | Southern Steel Company | Security hinge utilizing concealed radiative sensing to detect hinge position |
| US4922064A (en) * | 1989-03-08 | 1990-05-01 | Adtec Incorporated | Door position indicator |
| US20020125116A1 (en) * | 2001-03-06 | 2002-09-12 | Bernstein Ag | Switch hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006027585B4 (en) | 2012-03-29 |
| ITVI20050216A1 (en) | 2007-01-30 |
| CN1904458A (en) | 2007-01-31 |
| DE102006027585A1 (en) | 2007-02-22 |
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