EP3290615B1 - A retention system - Google Patents

A retention system Download PDF

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Publication number
EP3290615B1
EP3290615B1 EP17158677.9A EP17158677A EP3290615B1 EP 3290615 B1 EP3290615 B1 EP 3290615B1 EP 17158677 A EP17158677 A EP 17158677A EP 3290615 B1 EP3290615 B1 EP 3290615B1
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EP
European Patent Office
Prior art keywords
assembly
cross member
ice
clamp
top block
Prior art date
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.)
Active
Application number
EP17158677.9A
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German (de)
English (en)
French (fr)
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EP3290615A1 (en
Inventor
Tamas Kovacs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PMC Industries Inc
Original Assignee
PMC Industries Inc
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
Priority claimed from US15/254,892 external-priority patent/US9850661B2/en
Application filed by PMC Industries Inc filed Critical PMC Industries Inc
Priority to PL17158677T priority Critical patent/PL3290615T3/pl
Publication of EP3290615A1 publication Critical patent/EP3290615A1/en
Application granted granted Critical
Publication of EP3290615B1 publication Critical patent/EP3290615B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/10—Snow traps ; Removing snow from roofs; Snow melters

Definitions

  • the present invention relates to retention systems and, more particularly, for a modular retention system for retaining snow, ice, items and other objects on a wall, rooftop and other structure using cross member having an anchor assembly configured to join to a latch assembly of top block and clamp assembly and hold the cross member.
  • Conventional assemblies and methods for snow and/or ice retention systems use a mounting system for mounting to a wall, roof or other structure to restrain from falling such as, for example, snow, ice, or other items and/or objects.
  • the mounting system is adapted to mount thereto a cross-bar, rod, stop, decorative insert, snow break, or other member typically oriented parallel to the peak or otherwise transverse to the snow, ice or other objects.
  • conventional mounting systems require numerous parts and assemblies that add cost to the manufacture and installation. Consequently, conventional assemblies are costly to manufacture as well as installation time is increased because of the assembly required onsite that adds time on the roof for the installer and overall costs for the installation.
  • WO 2013/055900 discloses a retention system according to the preamble of claim 1.
  • the retention system according to the invention comprises the features of claim 1.
  • the retention system is generally shown as element 100 is useful to attach to a standing seam 102 of a metal roof 104 as well as to display outwardly a portion of the metal roof 106 for decorative purposes as desired, as illustrated in FIGS. 3 , 5D and 6B .
  • the retention system 100 comprises a clamp assembly 110, top block 130 secured by a fastener 180 to the clamp assembly 110, and a cross member assembly 200 configured with an anchor assembly 230 to operably connect by a 90Ā° approach to a latch assembly 140 formed in the top block 130, and a snow and/or ice flag 240 configured to operably connect to the cross member assembly 200.
  • cross member assemblies 200 of the retention apparatus, system and method 100 may be joined together by a connector 190 so as to extend across a desired length of the metal roof 104.
  • the cross member assembly 200 may be formed in various dimensions, for example, a thin accent formed by two segments 202 and 204, that is scalable to various widths by adding additional segments (e.g. three by adding segment 206, four by adding segment 208,..., n) to the extruded cross member body 201 as described herein.
  • the retention system 100 is described as a modular assembly using a minimum number of components to operably connect to a seam 102 of a metal roof 104 to retain snow and/or function as a snow break.
  • the retention system 100 also may formed and utilized without the portion of the metal roof 106. As will be appreciated by one skilled in the art, the retention system 100 may find further used for mounting other items and things to a structure such as a wall, building or rooftop, shingled roof, and structures other than a metal roof.
  • the top block 130 may be formed from a block body 132 configured with a pair of sides 131, 133, an upper surface 134 and a lower surface 139 having a generally planar segments to secure the fastener 180 and mounted on the clamp assembly 110, respectively, and a latch assembly 140.
  • the fastener 180 is configured to be received in a guide shaft 155 (e.g. a bore or an opening) extending between the upper and lower surfaces 134, 139 with a suitable dimension to provide rotational movement when operably connecting cross member assembly 200 to the top block 130 and clamp assembly 110, as illustrated in FIG. 5B as well as generally FIGS.
  • the block body 132 be formed from suitable materials that are durable, resist corrosion, maintain strength at high temperatures, and are easy to maintain such as, for example, 6063-T6 and/or 6061-T6 aluminum alloy (e.g. containing magnesium and silicon as its major alloying elements), stainless steel alloys, plastics and carbon fiber products.
  • the top block 130 may be formed in a dimension of 1.25 inches long, which dimension is non-limiting and as top block may be scaled as desired.
  • the upper surface 134 may be formed with a tail 135 having an integral flange 150 with a pivot 151 and a rotation surface 152 formed at an angle for a rotation bevel 153 located adjacent the clamp assembly 110 functioning to provide movement when operably connecting the cross member assembly 200 to the clamp assembly 110 and top block 130.
  • the upper surface 134 may be formed at an angle with a tail bevel 135 to remove excess material from the top block 130 so as to save material costs and to create a lighter component advantageously useful during the labor and installation of the retention system 100 while operating on a metal roof 104 or other structure.
  • the upper surface 136 may be configured with a tong nose 136 and tong nose bevel 137 formed at an angle so as to provide clearance with the cross member assembly 200 when connecting with the latch assembly 140.
  • the top block 130 may be configured with a latch assembly 140 formed between the upper surface 134 and the lower surface 139 so as to operably connect to the cross member assembly 200 by direct connection by placing crosswise, at right angles to the long axis of the cross member assembly 200 by inserting the cross member assembly 200 in a transverse approach to the latch assembly 140 the top block 130.
  • the latch assembly 140 comprises a lip 142, a hook 144, a recess 146 and an anchor 148 to secure and hold the cross member assembly 200 by the applied force imparted on the top block 130 by the fastener 180.
  • the latch assembly 140 may be formed by milling such as, for example, computer numeric controlled (CNC) machining to mill an entry lip bevel 143 formed at an angle to the lip 142, whereby the entry lip bevel 143 functions to allow lifting of the top block 130 when the anchor assembly 230 is positioned for entry to the top block 130.
  • the tip surface 141 may be formed in a vertical axis dimension or may be part of the original extrusion or block of material.
  • the entry lip bevel 143 functions to rotate top block 130 having the fastener 180 secured to the clamp assembly 110.
  • the entry lip bevel 143 may be formed at an angle of approximately between thirty degrees (30Ā°) and forty-five degrees (45Ā°), which is non-limiting angular dimension, according to an embodiment of the present invention.
  • the latch assembly 140 also may be formed with a hook bevel 145 formed at an angle joining the lip 142 to the hook 144 and recess 146 by CNC milling manufacturing techniques.
  • the hook bevel 145 functions to latch and hold the cross member assembly 200 after entry and transitioning of the lip 142 by the anchor assembly 230.
  • the hook bevel 143 may be formed at an angle of approximately ten degrees (10Ā°), which is a non-limiting angular dimension, according to an embodiment of the present invention.
  • the body anchor 148 may be formed with a body anchor bevel 149 formed at an angle and functioning to transfer the applied forces of the fastener 180 to anchor assembly 230 so as to secure and hold the cross member assembly 200 to the top block 130.
  • the body anchor bevel 149 may be formed at an angle of approximately forty-five degrees (45Ā°), which is non-limiting angular dimension, according to an embodiment of the present invention.
  • each top block 130 surface of the lip 142, entry lip bevel 143, hook 144, hook bevel 145, recess 146, anchor 148 and anchor bevel 149 are configured or otherwise formed at an angles suitable to conform to the joining section(s) on the anchor assembly 230 of the cross member assembly 200.
  • the block body 130 can be configured with a flange 150 on one end.
  • the flange 150 functions to rotate the top block 130 around pivot 151 so as to allow the block body 131 to open and receive the anchor assembly 230 as shown in FIG. 5B .
  • the flange 150 further functions to arrange and orient the top block 130 on the upper surface 134 of the clamp assembly 110 so as to align opening of the guide shaft 155 with an attachment shaft 113 of the clamp assembly 110 as shown in FIG. 5C .
  • the fastener 180 may be inserted through the opening of the guide shaft 155 to the attachment shaft 113 in the upper surface 112 of the clamp assembly 110 shown in FIGS.
  • the fastener 180 may be tightened and loosened by the threads, for example, turning clockwise and counter-clockwise so as to operably connect the top block 130 to the clamp assembly 110 as shown in FIGS. 1 and 2 .
  • the flange 150 may be configured with a clamp rotation surface 152 in a suitable rotation flange bevel 153 formed at an angle so as to provide clearance in allowing pivoting of the top block 130 at pivot 151 for insertion of the anchor assembly 240 as shown in FIGS. 7B, 7C and 11 .
  • the flange 150 further provides a predetermined distance as registered on the pivot 151 on a side 154 of clamp assembly 110 to the edge of the clamp stand-off surface 229 on the cross member assembly 200 so as to provide a stable structure for the operable connection as shown in FIGS. 1, 2 , 5A-5D , and 7 , although one skilled in the field will understand that either side 154 or 156 may be utilized by the flange depending upon orientation of the clamp assembly 110 on the standing seam 102 as shown.
  • the flange 150 is configured to provide rotation and orientation and to register the load of any ice or snow supported to the clamp stand-off surfaces 219 and 229 of the cross member assembly 200 thereby directing these applied forces to the clamp assembly 110 secured to the seam 102 of the metal roof 104 as shown in FIG. 6B .
  • the arm extension 216a is configured for multiple use to provide structural support, holding, maintaining, and preventing rotation by (1) the clamp stand-off surface 219 against a side 156 of the body 111 of the clamp assembly 110 when snow, ice or other object forces are applied to one or more of the cross member assembly 200 and ice flag 240, and (2) the nub projection 220, with support of the clamp-off surface 219, of the arm extension 216a provides holding of the ice flag 240 so as to resist deflecting, collapse and/or disengagement from coupler channel 203 of the cross member assembly 200 when snow, ice or other object forces are applied to the ice flag 240.
  • the anchor arm extension 224 is configured for multiple use to provide structural support, holding, and preventing rotation by (1) the clamp stand-off surface 229 against a side 156 of the body 111 of the clamp assembly 110 when snow, ice or other object forces are applied to one or more of the cross member assembly 200 and ice flag 240, and (2) the hook portion 222a provides holding of the ice flag 240 so as to resist deflecting, collapse and/or disengagement from the cross member assembly 200, whereby the coupler channel 203 allows for securing an ice flag 240, a connector 190, or both.
  • the arm extension 216b is configured with hook portion 222b for holding of the ice flag 240 in the coupler channel 207 so as to resist deflecting, collapse and/or disengagement from the cross member 220 when snow, ice or other object forces are applied to the ice flag 240, whereby coupler channel 207 provides for securing an ice flag 240, a connector 190, or both.
  • the nub 220b on end 221b of the anchor arm extension 224 adjacent upper surface 217b is configured to provide structural support, holding, and preventing rotation the ice flag 240 in the coupler channel 207 so as to resist deflecting, collapse and/or disengagement from the cross member assembly 200 when snow, ice or other object forces are applied to the ice flag 240, whereby the coupler channel 207 allows for securing an ice flag 240, a connector 190, or both.
  • the cross member assembly 200 comprises a body 201 having 2 or more segments 202, 204 and 206 with integral coupler channels 203, 205 and 206 for affixing thereto the connector 190 and a snow or ice flag 240 is described.
  • the body 201 may be formed from metal extrusion in elongated sections from suitable metals and/or alloys used in the production of extrusions including long constant cross-section structural shapes produced by pushing metal through a shaped die such as, for example, 6061-T6 and/or 6063-T6 aluminum alloy.
  • the cross member assembly 200 extrusion may be configured with a front surface 210 and a back surface 214.
  • the front surface 210 may be formed with a tab 211 and a tab 213 disposed on each edge thereby forming a channel 212 configured to receive a decorative portion of the metal roof 106.
  • the cross member 200 is configured to accept a decorative, matching section of metal roof 106 disposed slidably into a channel 212 on a facing, front surface 212 of the cross member assembly 200.
  • the cross member assembly 200 is configured to accept a decorative, matching section of metal roof placed into a channel 212 on a facing, front surface of a cross-member.
  • the cross-member assembly is configured to accept an ice flag 240 mountable to a back surface 214 of the cross member assembly 200 using an integral tong portion 251 cooperating with one or more coupler channels 203 and 207 formed in segments 202 and 226 of the cross member assembly 200.
  • the ice flag 240 also includes a surface or forward face 246 having a channel 249 configured to accept insertion of a decorative, matching section of metal roof 106 disposed into the channel 249 to display a similar appearance with the decorative, matching section of metal roof 106 disposed into a channel 212 on a facing, front surface 210 of the cross member assembly 200, as shown in FIGS. 3 and 6B .
  • the cross member assembly 200 along with one or more ice flags 240 advantageously may be located or assigned to a particular place along the metal roof 104, at different heights above the metal roof by the selection of the coupler channel 203 or 207, as desired to retain snow and ice from sliding off thereby preventing a hazardous condition.
  • the cross member assembly 200 may be configured with one or more arm extensions 216, 216a, 216b connected to and projecting from the body 201 on the back surface 214 according to an embodiment of the present invention.
  • the arm extension 216 extends generally transversely from the body portion 201 configured with an upper surface 217, a lower surface 218, and a clamp stand-off surface 219 on an end 221 of the arm extension 216.
  • the end 221 of the arm extension 216 may be formed with a protuberance projection or nub 220 as well as a locking projection 222 configured or otherwise formed at an angle to secure and hold a connector 190 and the ice flag 240 in the coupler channel 203.
  • the arm extension 216a is configured with upper surface 217a, a lower surface 218b.
  • the arm extension 216b is configured with a lower surface 218c having the locking projection 222b and an upper surface 217b having a nub 220b on an end 221b thereof to secure and hold a connector 190 and/or the ice flag 240 in the coupler channel 207.
  • the number of segments of the cross member assembly 200 is scalable and may be formed, for example, from two segments 202 and 204 in a short, thin design, or in a wider, taller design formed from multiple segments 202, 204, 206, 208,..., n for a desired appearance for the metal roof 104 by the addition of an arm extension 216 with a locking projection 222 and a nub 220 to secure and hold a connector 190 and/or the ice flag 240 in the coupler channel 207 as shown in FIGS 3 and 4 .
  • the cross member assembly 200 may be configured with a segment 204 having an anchor arm extension 224 and an anchor assembly 230.
  • the anchor arm extension 224 may be formed with portion 225 and portion 227 extending from the body 201 with portions 225 and 227 connecting to a cross-bar portion 226 so as to give a particular shape to the coupler channel 205 so as to secure and hold a connector 190.
  • the anchor assembly 230 may be configured as an extension 231 connecting to the cross-bar portion 226 and extending generally transverse therefrom.
  • the extension 231 may be formed with a clamp stand-off surface 229 on lower surface adjacent the locking projection 222 of segment 202 connecting to the locking projection 222 by an ice flag locking bevel 223.
  • the extension 231 may be formed with a locking a protrusion 232 at an end thereof and a hook portion 234.
  • the protrusion 232 and hook portion 234 may be configured to join the tip 232 to the cross-bar portion 226 by the a lip entry surface 233, recess joining surface 235, a hook bevel surface 236, a lip mating surface 237, a lip bevel mating surface 238 along an upper surface of the extension 231.
  • the lip entry surface 233 may be formed at an angle to allow entry of the protrusion 232 to the top block 130 and suitable to join with the angle of the entry lip bevel 143, for example, an angle approximately between thirty degrees (30Ā°) and forty-five degrees (45Ā°), which is non-limiting angular dimension, according to an embodiment of the present invention.
  • the hook bevel surface 236 may be formed at an angle suitable to join with the hook bevel 145 of the top block 130, for example, at an angle of approximately ten degrees (10Ā°), which is a non-limiting angular dimension, according to an embodiment of the present invention.
  • the lip bevel mating surface 238 may be formed at an angle suitable to join with the angle of the entry lip bevel 143 of the top block 130, for example, at an angle of approximately forty-five degrees (45Ā°), which is non-limiting angular dimension, according to an embodiment of the present invention.
  • the cross member assembly 200 along with one or more ice flags 240 advantageously may be assigned to a particular place or position along the metal roof 104, at different heights above the metal roof by the selection of the coupler channel 203 or 207, as desired to snow and ice from sliding off thereby preventing a hazardous condition.
  • the applied force and load of any ice or snow is supported by the structure of the hook 144 of the top block 130 and hook portion 234 of the anchor assembly 240.
  • the joined surfaces of the top block 130 are configured to conform to the joining section on the anchor assembly 230 of the cross member assembly 200.
  • the joined surfaces of the top block 130 are joined to the adjacent surfaces of the tip 232 to the cross-bar portion 226 by the a lip entry surface 233, recess joining surface 235, a hook bevel surface 236, a lip mating surface 237, a lip bevel mating surface 238 along an upper surface of the extension 231.
  • the cross-member assembly 200 is configured with the anchor assembly 230 advantageously forming a snap connection with the top block 130 and clamp assembly 110 (e.g. fastener 180, top block 130 and latch assembly 140) by inserting thereto (i.e. snap in place to the clamp assembly 110 and top block 130) in a direct contact, transverse approach, or alternatively securing the fastener 180 through spring and/or leaf spring 160 and guide shaft 155 of the top block 130, and to clamp assembly 110 (e.g. an A2 SI clamp or A2-NTM clamp).
  • clamp assembly 110 e.g. an A2 SI clamp or A2-NTM clamp
  • an ice flag 240 of the retention system 100 can be configured with a body 241 having a lower segment 242 and an upper segment 250.
  • the body 241 of the ice flag 240 may be formed from metal extrusion in elongated sections from suitable metals and/or alloys in the production of extrusions including long constant cross-section structural shapes produced by pushing metal through a shaped die such as, for example, 6061-T6 and/or 6063-T6 aluminum alloy.
  • the body 241 may be cut to dimensions such as, for example, approximately 3 inch or 8 cm sections, which dimension is non-limiting, easily disposed between standing seams 102 of the metal roof 104 operating to retain snow and ice from slipping off the metal roof 104.
  • the lower segment 242 includes a rear face 244 operable to retain and apply a pressure force against snow and ice accumulation between the standing seams 102 on the metal roof 104.
  • the installed cross-member assembly 200 and ice flag 240 may each receive a decorative portion of the metal roof 106 in the channel so as to match the color of the metal roof 104 and form an appealing decorative appearance.
  • the upper segment 250 of the ice flag 240 can be configured with a tong portion 251 extending from a hinge spring portion 252 operably connected to the body 241 and lower segment 242.
  • the tong portion 251 has an upper arm 254 and a lower arm 260 extending from the hinge spring portion 252.
  • the upper arm 254 may be configured with a tongue end 255 having an upper surface 256 that may be formed as a continuous surface that is relatively smooth, a forward end 257 on a distal end of the upper surface 256 and a tooth 258 on a proximal end of the upper surface 256.
  • the upper surface 256 is may be configured to engage and register against the upper surface 218 (e.g.
  • the forward end 257 may be configured to provide a smooth engagement with a particular coupler channel 203 or 207 as shown in FIGS. 3 , 6A-6B , and 11 .
  • the tooth 258 configured or otherwise formed at an angle to engage and operably connect with the locking projection 222 of the cross member assembly 200 as shown in FIGS. 3 and 6A .
  • the tooth 258 can be formed with an inward beveled edge forming a back angle of approximately forty degrees (40Ā°), which is non-limiting, so that the tooth 258 prevents unwanted collapse of the tong 251 and spring 252 portions thereby releasing of the ice flag 240 from a coupler channel 203 or 207 of the cross member assembly 200 by the applied force of snow, ice or other object imparting a force on back surface 244 of the lower segment 242.
  • the lower arm 260 may be configured with a nose 261 having an arcuate sliding surface 262, a proximal surface 263, a recess 264, a register edge 265 and a protrusion 266.
  • the arcuate sliding surface 262 is configured to provide a smooth engagement and transition (e.g. to slide over the nub 220) with a particular coupler channel 203 or 207 as shown in FIGS. 3 , 6A-6B , and 11 .
  • the recess 264 can be configured with a shape so as to align adjacent surfaces between the nub projection 220 on the cross member assembly 200 and the surfaces of the proximal surface 263, the register edge 265 and the protrusion 266 of the ice flag 240.
  • connection between the nub 220 and the recess 264 is configured to prevent unwanted disengagement, release and/or collapse of the tong 251 and spring 252 portions thereby releasing of the ice flag 240 from a coupler channel 203 or 207 of the cross member assembly 200 by the applied force of the load from snow, ice or other object imparting a force on back surface 244 of the lower segment 242.
  • the protuberance or projection 266 adjacent the register edge 265 may be formed of a suitable length and extension to engage a portion of the lower surface 218 (e.g. lower surface 218a of coupler channel 203 as shown in FIGS.
  • the ice flag 240 may be placed at selectable predetermined heights for snow and/or ice retention purposes as desired (e.g. in a higher or lower position above the metal roof 104) by selection and insertion into the coupler channel 203 or 207 of the cross member assembly 200.
  • a connector 190 may be configured to operably connect sections of the cross member assembly 200 so as to create extended lengths on a metal roof 104 according to an embodiment of the retention system 100 of the present invention.
  • the connector 190 may be configured as an elongated bar or rod from suitable materials such as AISI 300 Series 1B-B stainless steel.
  • a generally rectangular shaped connector 190 may be formed having a top 191, bottom 192, side 193, side 194, front 195, back 196 and a notch 197 at a mid-portion thereof. The notch 197 is useful to register the mid-portions of the connector when inserting into coupler channels 203, 205 and 207 of the cross member assembly 200.
  • each of the coupler channels 203, 205 and 207 is configured to receive the connector 190 and sliding engagement thereof as shown in FIG. 6A .
  • the dimensions of the connector 190 and the coupler channels 203, 205 and 207 may be adapted so that the connector 190 engages the side walls body 201, upper surface 217, lower surface 218 and locking projection 222.
  • the connector 190 is configured to be received in the anchor arm extension 224 formed at a mid-portion of the body 201 and, more specifically within the box-like coupler formed by the body segment 201, portion 225, portion 227, and crossbar portion 226 as is illustrated in FIG. 11 .
  • one or more connectors 190 may be inserted into one or all of the coupler channels 203, 205 and 207 to the mid-portion notch 197 in one cross member assembly 200.
  • Another cross member assembly 200 may be aligned to one or all of the coupler channels 203, 205 and 207, as utilized, to receive the connector into corresponding coupler channels 203, 205 and 207.
  • the retention system 100 utilizes a clamp assembly 110 for mounting to a standing seam 102 of a metal roof 104.
  • the clamp assembly 110 can be configured with an attachment shaft 113 opening to receive the fastener 180 so as to secure the top block 130 thereto with the cross member assembly 200 there-between as described herein.
  • the attachment shaft 113 may be formed smooth, threaded, or both, to secure to the threads 185 of the fastener 180, or alternatively made smooth for a self-tapping fastener 180 having a hardened composition that cuts threads in the 6063 aluminum alloy upon tightening.
  • the clamp assembly 110 comprises a body 111 having a generally U-shaped form with downwardly extending legs 114 and 118 forming a slot 117 configured to receive the standing seam 102 of a metal roof 104.
  • the body 111 is configured with an upper surface 112 having a generally planar shape with the attachment shaft 113 centrally located in the upper surface 112 for receiving a fastener 180 to attach items and objects thereto on the metal roof 104.
  • the leg 114 is configured with a foot 115 and a toe portion 116 at an end of the generally downwardly extending leg 114 segment thereof configured to be located adjacent the standing seam 102 and underneath any crimped ends or roll of the standing seam 102 of the metal roof 104 inserted in slot 117.
  • the foot 115 and toe portion 116 have an increased grip used advantageously to secure to the standing seam 102 in the slot 117, whereby the applied forces are spread across the standing seam 102 through the edge 116a of the toe portion 116 so as to increase a holding force as well as to reduce puncturing (e.g. causing a hole where water and elements may enter into the structure or home through the roof) or other damage such as, for example, to a paint or hydrophobic coating (e.g. TeflonĀ®) of the metal roof.
  • a paint or hydrophobic coating e.g. TeflonĀ®
  • the leg 118 can be configured with an arcuate surface 119, one or more pins 120, 122 disposed in smooth pin channels 121, 123 formed in the leg 118 of the body 111 and extending to the slot 117 along a path to one or more pockets 129 formed the inner surface of the leg 114.
  • the one or more pockets 129 are configured to cooperate with the pins 120, 122 for increasing the holding force of the clamp assembly 110, whereby in operation tightening the fastener urges the pins 120, 122 against the standing seam 102 causing an indentation or recess in the standing seam 102 by causing pressing force on the seam 102 between the end of the pins 120, 122 and the one or more pockets 129 on the leg 114.
  • a suitable claim assembly 110 is manufactured by PMC Industries, Inc. identified by clamp product part Ace ClampĀ®, A2Ā® and/or A2-NTM.
  • the clamp assembly 110 of the present invention has advantages of improved holding force configured to withstand harsh environmental conditions (e.g. heat, wind, vibration, seismic, storms and other forces) so as to maintain the clamp assembly 110 secured to the standing seam 102 such as, for example, seismic, vibration, wind, hurricanes, and other adverse conditions.
  • the clamp assembly 110 of the present invention has advantages of improved holding force load characteristics of at least a thirty percent (30%) increase compared to conventional clamp assemblies such as, for example, increased holding force ranging approximately up to and including 1,600 lb. vertical load.
  • the arcuate surface 119 formed in leg 118 may be configured to allow forming the one or more pin channels 121, 123 corresponding to pins 120, 122 at a predetermined angle 172.
  • the predetermined angle 172 may be established along the arcuate surface 119 such as, for example, in a range between predetermined angle 172a and predetermined angle 172b.
  • the clamp assembly 110 can be configured during manufacture to change, vary or modify the predetermined angle 172 of the pins 120,122 as desired so as to change where pins 120, 122 will press against the standing seam 102. Consequently, the leg 118 of the body 111 of the clamp assembly 110 provides for customization for different pin channels and configurations of the metal roof 106 available from various metal roof manufacturers.
  • certain metal roof 106 pin channels have different configurations of the standing seam 102, whereby fastener 124 and washer 128 of clamp assembly 110 may direct the pins 120, 122 along the predetermined angles 172a or 172b, so as to join the standing seam 102 sufficiently below the rolled metal of the seam for improved strength.
  • the clamp assembly 110 may be configured to direct the pins 120, 122 along the predetermined angle 172b so as to improve clearance for tools utilized by the installer, e.g. difficulty reaching and driving fasteners between standing seams 102 when certain tools are positioned horizontal and/or otherwise at angles parallel to the metal roof 104.
  • the leg 118 of the clamp assembly 110 may be formed offset pin channels 121, 123 along the arcuate surface 119, for example, a pin channel 121 formed at predetermined angle 172a and a pin channel 123 formed a predetermined angle 172b so as to offset the holding part of each pin 120, 122 whereby the washer 128 is of suitable size to urge pins 120, 122 against the standing seam 102.
  • the fastener 180 of the retention system 100 further comprises a head 181, a washer 182 formed integral to the head with serrations 183 on the surface of the washer 182 oriented, for example, adjacent the top block, and an elongated shaft 184 that may be threaded 185.
  • the fastener 180 may be formed from suitable materials having sufficient strength, durability, and ability to withstand environmental conditions such as, for example, a serrated flange hex head screw formed from AISI 300 Series stainless steel with dimensions of 3/8 - 16 x 1" long.
  • the fastener 180 may be used to secure the top block 132 the clamp assembly 110 by inserting the fastener 180 in the guide shaft 150 and the attachment shaft 113 of the clamp assembly.
  • the fastener 180 and the fastener 122 for the clamp assembly 110 may be the same thereby providing the reduction in components of the retention system 100 and advantages and cost and installation of the retention system 100, whereby the cross member assembly 200 may be inserted to the top block 130, emitting an audible sound (e.g. snap or clicking) for holding the cross member assembly 200 securely that is advantageous in installations of the retention system 100 on steep pitches of the metal roof 104, one person installations, whereby the audible sound provides the installer with information on the positive engagement of the cross member assembly 200 as shown in FIGS. 5A-5D
  • the retention system 100 may be configured preassembled with the fastener 180 secured through the top block 130 to the attachment shaft 1113 of the clamp assembly 110 with the fastener 180 tightened to a predetermined distance 170, as shown in FIGS. 5B .
  • the predetermined distance 170 may be established as the distance for the anchor assembly 230 to be inserted so as to traverse the lip 142 to reach recess 146 to engage the hook portion 144 such as, for example, .125 inch or 3.25 mm, which is non-limiting, utilizing the pivot 151.
  • the preassembled retention system 100 may be formed with a suitable fastener 180 for example a threaded hex bolt inserted into the threaded channel 127 or a self-tapping threaded bolt secured in the attachment shaft 113.
  • the preassembled retention system 100 may be formed in a predetermined distance range 171, whereby the range is a distance such that (1) the anchor assembly 230 may be inserted to the recess 146 and (2) unwanted rotation of the top block 130 is prevented when the fastener 180 is tightened.
  • the predetermined distance range 171 for unwanted rotation may be limited to where the tail of the flange 150 or the rotation surface 152 does not rise above the upper surface 112 of the body 111 of the clamp assembly 110.
  • the retention system 100 has the fastener 180 and top block 130 affixed to the clamp body 111 at a predetermined distance range 171 set at, for example, approximately a range approximately between about 0.125 to 0.157 inches or 3.25 to 4.0 mm, as shown in FIG. 5C .
  • the retention assembly 100 may be configured a spring or leaf spring 160 located between the top block 130 and the fastener 180 for biasing the top block 130 toward the clamp body 111.
  • the fastener 180 may be disposed through a spring or leaf spring 160, the guide shaft 155 and secured to the attachment shaft 113 of the clamp assembly 110 so as to provide a spring-loaded attachment whereby the cross member assembly 200 may be inserted to the latch assembly 140 of top block 130 clicking and holding the cross member assembly 200 securely.
  • top block 130 is placed adjacent the upper surface 112 of clamp body 111 with the leaf spring 160 arranged on the upper surface 134 of the top block 130 aligning guide shaft 155 and attachment shaft 113 for inserting therethrough the fastener 180 to affix securely to a clamp assembly 110.
  • the embodiment of the present invention where the retention apparatus and system 100 is configured with the leaf spring 160 is advantageous for on person installations of the metal roof and where an audible sound provides the installer with information on the positive engagement of the cross member assembly 200.
  • the leaf spring 160 may be formed from suitable materials having sufficient strength, durability and ability to withstand environmental factors such as, for example, stainless steel with suitable bias and elastomeric properties when disposed on the seam 102 of a metal roof 104 for extended periods of time as shown in FIG. 6B . Consequently, the retention system 100 is configured to connect the anchor assembly 230 of the cross-member assembly 200 using the leaf spring 160 providing biasing of the top block 130 against the fastener 180, whereby the cross member assembly 200 may be inserted in the latch assembly 140 and snap into place and the fastener 180 may then be tightened uniformly to finalize the installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Seeds, Soups, And Other Foods (AREA)
EP17158677.9A 2016-09-01 2017-03-01 A retention system Active EP3290615B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17158677T PL3290615T3 (pl) 2016-09-01 2017-03-01 Układ mocowania zabezpieczenia przeciwśniegowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/254,892 US9850661B2 (en) 2015-09-14 2016-09-01 Retention apparatus, system and method

Publications (2)

Publication Number Publication Date
EP3290615A1 EP3290615A1 (en) 2018-03-07
EP3290615B1 true EP3290615B1 (en) 2019-06-19

Family

ID=58212966

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17158677.9A Active EP3290615B1 (en) 2016-09-01 2017-03-01 A retention system
EP17158678.7A Active EP3290616B1 (en) 2016-09-01 2017-03-01 Mounting assembly for securing a device on a standing seam

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17158678.7A Active EP3290616B1 (en) 2016-09-01 2017-03-01 Mounting assembly for securing a device on a standing seam

Country Status (4)

Country Link
EP (2) EP3290615B1 (hu)
CA (2) CA2959043A1 (hu)
HU (1) HUE045902T2 (hu)
PL (2) PL3290615T3 (hu)

Families Citing this family (1)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US20210214983A1 (en) * 2018-06-13 2021-07-15 Assa Abloy Entrance Systems Ab Space saving mechanism for installation of swing door operator

Family Cites Families (7)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US5715640A (en) * 1992-07-13 1998-02-10 Haddock; Robert M. M. Mounting device for controlling uplift of a metal roof
CN102667028B (zh) * 2009-12-25 2014-11-26 ę Ŗ式会ē¤¾å±‹ę ¹ęŠ€ęœÆē ”ē©¶ę‰€ č¾…åŠ©ęž„ä»¶
US8745935B2 (en) * 2011-10-14 2014-06-10 A. Raymond Et Cie Photovoltaic panel fastening system
US20130168525A1 (en) * 2011-12-29 2013-07-04 Dustin M.M. Haddock Mounting device for nail strip panels
US8898961B1 (en) * 2012-03-15 2014-12-02 Roger M. Cline Metal seam mount
US9011034B2 (en) * 2013-03-10 2015-04-21 Sunmodo Corporation Seam clamp for solar panel and rooftop objects
DK3019754T3 (en) * 2013-07-10 2019-04-15 Pmc Ind Inc CLAMP TO STANDING FALSE

Non-Patent Citations (1)

* Cited by examiner, ā€  Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3290616B1 (en) 2019-12-11
HUE045902T2 (hu) 2020-01-28
CA2959043A1 (en) 2018-03-01
PL3290615T3 (pl) 2020-03-31
EP3290616A1 (en) 2018-03-07
CA3209785A1 (en) 2018-03-01
PL3290616T3 (pl) 2020-06-29
EP3290615A1 (en) 2018-03-07

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