The present disclosure relates to bearing pads and more particularly to bearing pads for receiving and retaining the substantially vertically oriented structural members of a module, such as a plastic module, for use in constructing a pathway and supporting the module on a ground surface.
Pathways such as pedestrian walkways and the like are often made from modules that typically from a plastic material or combination of plastic materials, one or more composite materials, a metal material, or any other suitable materials or combination of materials. Typically, such modules, which are also often referred to as panels, have a top deck with end walls and side walls depending from the top deck. Also, for added structural rigidity and strength, there is typically a plurality of general vertically oriented cross support members depending from the top deck.
Such modules can be found in in U.S. Pat. No. 9,353,487 entitled Securely Interconnectable Modules For Use In Constructing A Pathway For Traffic issued May 31, 2016 and various United States published patent applications including U.S. Published patent application Ser. No. 14/955,179 entitled Heatable Module For Use In Constructing A Pathway For Traffic, U.S. Published patent application Ser. No. 14/955,214 entitled Securely Interconnectable Modules For Use In Constructing A Pathway For Traffic, U.S. Published patent application Ser. No. 14/955,233 entitled Heatable Pathway System For Traffic, U.S. Published patent application Ser. No. 14/955,248 entitled Module For Use In Constructing A Pathway For Traffic, and U.S. Published patent application Ser. No. 14/955,266 entitled Securely Interconnectable Modules, with each of these patents and published patent applications having a common inventor with the present patent application.
In each of these patents and published patent applications, the module that is used in constructing a pathway for traffic comprise a base member having a top deck with side walls and end walls depending from the top deck. A plurality of substantially vertically oriented structural members, referred to as cross support members, also depend from the top plate between the sidewalls and end walls. It has been found that if such a module rests on and is therefore supported by a gravel surface or possibly a dirt surface, it is possible for the various side walls and end walls and cross support members to dig into the gravel surface or dirt surface, which can cause at least two problems. First, the module may be unevenly supported and therefore may move, which is unacceptable. Secondly, the downwardly directed vertical forces transmitted from the relatively thin side walls, end walls and cross support members are transmitted to a correspondingly very small cross-sectional area of the ground surface, which can cause shifting of the ground surface.
In general principle, in order ameliorate these problems, the downwardly directed vertical forces from the side walls, end walls and cross support members need to be distributed more evenly over the ground surface.
The closest known prior art, which is considered to be not overly relevant, is U.S. Pat. No. 7,736,088 issued Jun. 15, 2010, to Boxall et al, discloses a Rectangular Bearing pad. The generally rectangular bearing pad is for transferring loads between a first cast-in-place slab and a second cast-in-place slab separated by a joint. The bearing pad is adapted to transfer load between the first and second slabs directed essentially perpendicular to the intended upper surface of the first slab, and allows relative movement between adjacent concrete slabs along the joint between the slabs with minimal joint opening between the slabs. A pocket former embedded within the first slab may also be included to position the bearing pad and create void space on the sides of the bearing pad to permit the relative movement. A compressible material along the side of the bearing pad may also be used to permit the relative movement. Neither the void space created by the pocket former nor the compressible material are dependent upon the existence of a significant gap in the joint between the concrete slabs.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad is cost effective.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad is inexpensive to manufacture.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad can be made from a plastic material.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad can readily be engaged with the module.
It is an object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad can slidably receive and retain the substantially vertically oriented structural members of the module.
It is a further object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad can effectively transmit the downwardly directed forces from the module to the ground below.
It is a further object of the present disclosure to provide a bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface, wherein the bearing pad can effectively transmit the downwardly directed forces from the module to a gravel surface below.
In accordance with one aspect of the present disclosure there is disclosed a novel bearing pad for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface. The bearing pad comprises a main body member having a lower ground engaging surface and a first slot defined by a first substantially vertically oriented structural member engaging portion of the main body member. The first slot is generally planar and is disposed generally transversely to the lower ground engaging surface of the main body member. The first slot has a fully open top, a fully open first end and a fully open second end to thereby slidably receive a substantially vertically oriented structural member therein that is larger than the first upwardly open slot. In use, the substantially vertically oriented structural member that is slidably received and retained in the first slot is retained in place by the first cross support member engaging portion of the main body member.
In accordance with another aspect of the present disclosure there is disclosed a novel shim for use under a bearing pad. The shim comprises a base portion having a perimeter edge and a central portion. A first hook member and a second hook member each extending upwardly from the base portion. The first hook member and the second hook member are disposed in opposed relation on the base portion with the central portion disposed therebetween.
In accordance with another aspect of the present disclosure there is disclosed a novel apparatus for receiving and retaining the substantially vertically oriented structural members of a module for use in constructing a pathway and supporting the module on a ground surface. The apparatus comprises a bearing pad having a lower ground engaging surface and a first upwardly open slot, and a shim securable to the bearing pad in underlying relation thereto. In use, a substantially vertically oriented structural member of the module that is slidably received and retained in the first slot is securely retained in place by the bearing pad, and the bearing pad is slidably received and retained in load bearing relation by the shim.
Other advantages, features and characteristics of the present disclosure, as well as methods of operation and functions of the related elements of the structure, and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following detailed description and the appended claims with reference to the accompanying drawings, the latter of which is briefly described herein below.
For a fuller understanding of the nature and objects of the disclosure, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:
Referring to
Reference will now be made to
The pathway module 104, as illustrated, is preferably made from a suitable plastic material or combination of plastic materials, one or more composite materials, a metal material, or any other suitable materials or combination of materials. Typically, such pathway modules, which are also often referred to as panels, have a top deck with end walls and side walls depending from the top deck. Also, for added structural rigidity and strength, there is typically a plurality of general vertically oriented cross support members depending from the top deck. The substantially vertically oriented structural members 102 of a pathway module 104 may include, but are not limited to, the end walls, the side walls, and the general vertically oriented cross support members (i.e. ribs).
It should also be noted that the pathway module 104 might be any one or more of a panel, a tile, a platform, a platform portion, a deck, a deck portion, a plate, flooring, and the like.
The bearing pad 110 comprises a main body member 112 having a lower ground engaging surface 111 and a first upwardly open slot 120 and a second upwardly open slot 130, as will be discussed in greater detail subsequently. The first upwardly open slot 120 and the second upwardly open slot 130 are oriented substantially transversely one to the other and intersect at a vertically oriented common space 118. Further, the first upwardly open slot 120 is generally planar and is disposed generally transversely to the lower ground engaging surface 111 of the main body member 112. Similarly, the second upwardly open slot 130 is generally planar and is disposed generally transversely to the lower ground engaging surface 111 of the main body member 112.
Also, the first upwardly open slot 120 has a fully open top 123, a fully open first end 121 and a fully open second end 122 to thereby receive a substantially vertically oriented structural member 102 therein that is larger than the first upwardly open slot 120 such that a received substantially vertically oriented structural member 102 extends beyond the first upwardly open slot 120 at the fully open top 123, the fully open first end 121 and the fully open second end 122 Similarly, the second upwardly open slot 130 has a fully open top 133, a fully open first end 131 and a fully open second end 132 to thereby receive a substantially vertically oriented structural member 102 therein that is larger than the second upwardly open slot 130 such that a received substantially vertically oriented structural member 102 extends beyond the second upwardly open slot 130 at the fully open top 133, the fully open first end 131 and the fully open second end 132.
The main body member 112 of the bearing pad 110 further comprises a base member 140, a first left wall 150L, a first right wall 150R. The base member 140 as illustrated is substantially planar and also substantially flat. Also, as illustrated, the base member 140 is substantially square, although it can be of any suitable shape, such as circular, rectangular, triangular, oval, and so on. The main body member 112 may comprise one type of plastic material, and further may comprise a unitary piece of plastic material, for the sake of ease of manufacturing and low cost.
The first left wall 150L and the first right wall 150R each extend upwardly from the base member 140. In use, in a typical orientation of the bearing pad, the lower ground engaging surface 111 of the base member 140 comprises a bottom ground engaging surface 111 and would face downwardly to engage the ground, and accordingly, the first left wall 150L and the first right wall 150R would each extend substantially vertically upwardly.
As can be best seen in
The main body member 112 of the bearing pad 110 further comprises a second left wall 170L and a second right wall 170R each extending upwardly from the base member 140. In use, in a typical orientation of the bearing pad, the second left wall 170L and the second right wall 170R would each extend substantially vertically upwardly.
As can be best seen in
As can be readily seen in the Figures, the first upwardly open slot 120 is defined by the first cross support member engaging portion 160 of the main body member 112 and the second upwardly open slot 130 is defined by the second cross support member engaging portion 180 of the main body member 112.
Each of the first left wall 150L, the first right wall 150R, the second left wall 170L and the second right wall 170R comprise two longitudinally aligned wall portions. More specifically, the first left wall 150L comprises two longitudinally aligned wall portions 150LA, 150LB Similarly, the first right wall 150R comprises two longitudinally aligned wall portions 150RA, 150RB. Also, similarly, the second left wall 170L comprises two longitudinally aligned wall portions 170LA, 170LB. Once again similarly, the second right wall 170R comprises two longitudinally aligned wall portions 170RA, 170RB.
Moreover, each of the longitudinally aligned wall portions 150LA, 150LB, 150RA, 150RB, 170LA, 170LB, 170RA, 170RB comprises a horizontal-top-edge portion 190 disposed adjacent the vertically oriented common space 118 and a sloped-top-edge portion 192 extending outwardly from the horizontal top edge portion 190.
In order to maximize the effectiveness of the wall portions 150LA, 150LB, 150RA, 150RB, 170LA, 170LB, 170RA, 170RB while minimizing the amount of plastic used, of the longitudinally aligned wall portions further comprises a rail portion 194 extending outwardly from the sloped-top-edge portion 192.
Further, each of the first left wall 150L and a first right wall 150R has a width “WW”, and the width “WW” of the first left wall 150L and the width of the first right wall 150R are substantially the same one as the other. Also, each of the first gap 162 and the second gap 172 has a width “WG”. As can be readily seen, the width of the first gap 162 is slightly greater than the width of the first left wall 150L and the width of the first right wall 150R Similarly, the width of the second gap 172 is slightly greater than the width of the second left wall 170L and the width of the second right wall 170R.
It should also be noted that the size and draft angle of the first gap 162 and the second gap 172 can be selected to properly accommodate the thickness of the substantially vertically oriented structural member 102 that the first gap 162 and the second gap 172 will be receiving and retaining.
Also is can readily be seen in
The first and second cross support member engaging portions 160 and 180 further comprise a generally upwardly facing weight bearing stop surface 188 that bears the downward vertical force transmitted by a substantially vertically oriented structural member 102 that is received and retained in either the first upwardly open slot 120 or the second upwardly open slot 130. The generally upwardly facing weight bearing stop surface 188 is substantially cross-shaped and is disposed partially between the first left wall 150L and the first right wall 150R and disposed partially between the second left wall 170L and the second right wall 170R.
In use, a plurality of bearing pads 110 are individually introduced to the pathway module 104, as indicated by arrow “A” in
It should be noted that when the bearing pad 110 is received by two substantially vertically oriented structural members 102 that are end walls or side walls of the pathway module 104, the bearing pad 110 acts as a connector to help retain the two adjacent pathway modules 104 securely together.
In another aspect of the present disclosure, that can be best seen in
Further, a first guide member 211 and a second guide member 212 each extend upwardly from the base portion 205 at the perimeter edge 207 of the base portion 205. The first guide member 211 is disposed at the third perimeter edge portion 207c and the second guide member 212 is disposed at the fourth perimeter edge portion 207d, and are accordingly disposed in opposed relation on the base portion 205 with the central portion 206 disposed therebetween. Also a third guide member 213 is disposed at the third perimeter edge portion 207c and a fourth guide member 214 is disposed at the fourth perimeter edge portion 207d, and accordingly are disposed in opposed relation on the base portion 205 with the central portion 206 disposed therebetween. Together, the hook members 201, 202, 203, 204 and the guide members 211, 212, 213, 214 preclude lateral movement of the shim 200 and the bearing pad 110 with respect to each other.
In another aspect of the present disclosure, that can be best seen in
In use, a substantially vertically oriented structural member 102 of the pathway module 104 that is slidably received and retained in the first upwardly open slot 120 is securely retained in place by the bearing pad 110, and a substantially vertically oriented structural member 102 of the pathway module 104 that is received and retained in the second upwardly open slot 130 is securely retained in place by the bearing pad 110. The bearing pad 110 is slidably received and retained in load bearing relation by the shim 200.
Reference will now be made to
More specifically, the second illustrated embodiment of the shim 400 comprises a base portion 405 having a perimeter edge 407 and a central portion 406. The perimeter edge 407 has a first perimeter edge portion 407a, a second perimeter edge portion 407b, a third perimeter edge portion 407c, and a fourth perimeter edge portion 407d. A first fastener-receiving aperture 401 is disposed in the base portion 405 adjacent the first perimeter edge portion 407a. Similarly, a second fastener-receiving aperture 402 is disposed in the base portion 405 adjacent the fourth perimeter edge portion 407d. Also, a third fastener-receiving aperture 403 is disposed in the base portion 405 adjacent the third perimeter edge portion 407c. Threaded fasteners 410 are used to secure together two shims 400. In the above described manner, the second illustrated embodiment shim 400 can be stacked with other like shims 400 to produce a selected height stack of shims.
Reference will now be made to
More specifically, the third illustrated embodiment of the shim 500 comprises a base portion 505 having a perimeter edge 507 and a central portion 506. The perimeter edge 507 has a first perimeter edge portion 507a, a second perimeter edge portion 507b, a third perimeter edge portion 507c, and a fourth perimeter edge portion 507d. A first hook member 501 and a second hook member 502 each extend upwardly from the base portion 505 at the perimeter edge 507 of the base portion 505. The first hook member 501 is disposed at the first perimeter edge portion 507a and the second hook member 502 is disposed at the second perimeter edge portion 507b, and accordingly are disposed in opposed relation on the base portion 505 with the central portion 506 disposed therebetween. Also, a third hook member 503 is disposed at the first perimeter edge portion 507a and a fourth hook member 504 is disposed at the second perimeter edge portion 507b, and accordingly are disposed in opposed relation on the base portion 505 with the central portion 506 disposed therebetween. The hook members 501, 502, 503, 504 each engage a small portion of the top surface of the base member 140 of the bearing pad 110 to securely retain the shim 500 on the bearing pad 110.
Further, a first indent 511 is disposed at the third perimeter edge portion 507c and a second indent 512 is disposed at the fourth perimeter edge portion 507d, and accordingly are disposed in opposed relation on the base portion 505 with the central portion 506 disposed therebetween. Also a third indent 513 is disposed at the third perimeter edge portion 507c and a fourth indent 514 is disposed at the fourth perimeter edge portion 507d, and accordingly are disposed in opposed relation on the base portion 505 with the central portion 506 disposed therebetween. The hook members 501, 502, 503, 504 are positioned such that they engage the indents 511, 512, 513, 514, respectively, when two shims 500 are engaged with one another such that the hook members 501, 502, 503, 504 are aligned with the indents 511, 512, 513, 514. The hook members 501, 502, 503, 504 each engage a small portion of the top surface 508 of the base member 505 adjacent the indents 511, 512, 513, 514, to securely retain two shims 500 to each other. In the above described manner, the third illustrated embodiment of the shim 500 can be stacked with other like shims 500 to produce a selected height stack of shims without the use of separate fasteners.
Reference will be now made to
The first cross support member engaging surface 660 and second cross support member engaging surface 680 can be integrally molded features. For example, pins may be inserted into the lower ground engaging surface 611 of the bearing pad 610 to deform the walls 650R, 650L, 670R, and 670L, which forms the first cross support member engaging surfaces 660 and second cross support member engaging surfaces 680 thereon. When the bearing pad 610 is removed from the mold, holes 681 in the lower ground engaging surface 611 are present from where the pins were inserted. The holes 681 can contribute to the ability of walls 650R, 650L, 670R, and 670L to flex during use. The ability of walls 650R, 650L, 670R, and 670L to flex can avoid cracking and ultimate failure of the bearing pad 610 during use.
Reference will be now made to
The first hook 701 and the second hook 702 extend from the top surface 706 at opposite ends of the shim 700, and engage a small portion of a top surface of the base member 140 of the bearing pad 110 to securely retain the shim 700 to the bearing pad 110, as shown in
The first hook engaging surface 711 and the second hook engaging surface 712 may be configured to receive the first hook 701 and the second hook 702 of a second shim 700, to securely retain the two shims 700 together, as shown in
Other variations of the above principles will be apparent to those who are knowledgeable in the field of the disclosure, and such variations are considered to be within the scope of the present disclosure. Further, other modifications and alterations may be used in the design and manufacture of the bearing pad and shim, of the present disclosure, without departing from the spirit and scope of the accompanying claims.
Other variations are within the spirit of the present disclosure. Thus, while the disclosure is susceptible to various modifications and alternative constructions, a certain illustrated embodiment thereof is shown in the drawings and has been described above in detail. It should be understood, however, that there is no intention to limit the disclosure to the specific form or forms disclosed, but on the contrary, the intention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the disclosure, as defined in the appended claims.
The use of the terms “a” and “an” and “the” and similar referents in the context of describing the disclosure (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising”, “having”, “including”, and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. The term “connected” is to be construed as partly or wholly contained within, attached to, or joined together, even if there is something intervening. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”, “for example”) provided herein, is intended merely to better illuminate embodiments of the disclosure and does not pose a limitation on the scope of the disclosure unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the disclosure.
Illustrated embodiments of this disclosure are described herein. Variations of those illustrated embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventor expects skilled artisans to employ such variations as appropriate, and the inventor intends for the disclosure to be practiced otherwise than as specifically described herein. Accordingly, this disclosure includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the disclosure unless otherwise indicated herein or otherwise clearly contradicted by context.
Although the present disclosure has been described with respect to one or more particular embodiments, it will be understood that other embodiments of the present invention may be made without departing from the spirit and scope of the present invention. Hence, the present invention is deemed limited only by the appended claims and the reasonable interpretation thereof.
This application claims priority to U.S. Provisional Application No. 62/370,478, filed on Aug. 3, 2016, now pending, the entire disclosure of which is incorporated herein by reference.
Number | Date | Country | |
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62370478 | Aug 2016 | US |