Multiple-component floor mat system

Abstract

Multiple components of a floor mat system may each be formed of a resilient material such as foamed polyurethane. First and second channels are formed in the respective lower surfaces of first and second mat components, so as to inwardly extend from lateral boundaries thereof. The roofs of the channels are spaced above the general lower surfaces of the mat components. A first socket is formed to upwardly extend from the roof of the first channel, and a second socket is formed to upwardly extend from the roof of a second channel. A connector is used to join the mat components. Posts of the connector are received in the sockets, while a strap joining the posts is received within the first and second channels.

Claims

1. A floor mat system, comprising: a first mat component having a first lateral boundary and a first general lower surface; a second mat component having a second lateral boundary and a second general lower surface; an elongate first channel formed in the first mat component to extend laterally inwardly from the first lateral boundary, the first channel having a roof upwardly displaced from the first general lower surface, a first socket formed in the first mat component to open onto the roof of the first channel and to upwardly extend therefrom; an elongate second channel formed in the second mat component to extend laterally inwardly from the second lateral boundary, the second channel having a roof upwardly displaced from the second general lower surface, a second socket formed in the second mat component to open onto the roof of the second channel and upwardly extend therefrom; and a connector having a strap with an upper surface, a first post upwardly extending from the upper surface of the strap, a second post laterally spaced from the first post and upwardly extending from the upper surface of the strap; the first lateral boundary of the first mat component adapted to be abutted against the second lateral boundary of the second mat component such that the first channel becomes continuous with the second channel, the strap adapted to be received into the first and second channels, the first post adapted to be received into the first socket and the second post adapted to be received into the second socket to thereby fasten the first mat component to the second mat component.

2. The floor mat system of claim 1, wherein an elongate third channel is formed in the first mat component, the third channel having a roof that is upwardly displaced from the first general lower surface, a third socket formed in the first mat component to open onto the roof of the third channel and to upwardly extend therefrom, the third socket spaced from the first socket, the third channel spaced from the first lateral boundary of the first mat component and extending from the first socket to the third socket; an elongate fourth channel formed to extend laterally inwardly from the first lateral boundary of the first mat component to the third socket and to be spaced from the first channel, the fourth channel having a roof that is upwardly spaced from the first general lower surface; an elongate fifth channel being formed in the second mat component, the fifth channel having a roof that is upwardly displaced from the second general lower surface, a fourth socket formed in the second mat component to open onto the roof of the fifth channel and to upwardly extend therefrom, the fourth socket being spaced from the second socket, the fifth channel spaced from the second lateral boundary and extending from the second socket to the fourth socket; an elongate sixth channel formed in the second mat component to extend laterally inwardly from the second lateral boundary to the fourth socket, a roof of the sixth channel being upwardly spaced from the second general lower surface; and the connector further comprising a third post adapted to be received into the third socket and a fourth post adapted to be received into the fourth socket, a second strap extending from the first post to the third post and adapted to be received into the third channel, a third strap extending from the third post to the fourth post and adapted to be received into the fourth and sixth channels when the first and second lateral boundaries are abutted to align the fourth and sixth channels, and a fourth strap extending from the second post to the fourth post and adapted to be received in the fifth channel.

3. The floor mat system of claim 2, wherein the roofs of the first, third and fourth channels are upwardly spaced from the first general lower surface by a first depth, the roofs of the second, fifth and sixth channels being upwardly spaced from the second general lower surface by the first depth, each of the straps having an upper surface, a lower surface and a second depth between the upper surface and the lower surface, the second depth of the straps being less than the first depth of the channels.

4. The floor mat system of claim 1, wherein the roof of the first channel is upwardly spaced from the first general lower surface by a first depth, the roof of the second channel being upwardly spaced from the second general lower surface by the first depth, and wherein the strap has a lower surface spaced from the upper surface by a second depth that is less than the first depth, such that in use the lower surface of the strap is disposed above the first and second general lower surfaces.

5. The floor mat system of claim 1, wherein the mat components are made of a resilient material, the first post having a shaft with a first diameter and a free end with a second diameter greater than the first diameter, the second post having a shaft with a third diameter and a free end with a fourth diameter greater than the third diameter, the first and second sockets having sidewalls, the free ends of the first and second posts respectively engaged in an interference fit with the sidewalls of the first and second sockets when the connector is assembled to the first and second mat components.

6. The system of claim 5, wherein the mat components are made of a foamed elastomer.

7. The floor mat of claim 5, wherein the roof of the first channel is upwardly spaced from the first general lower surface by a first depth, the roof of the second channel being upwardly spaced from the second general lower surface by the first depth, the strap having a lower surface that is spaced from the upper surface thereof by a second depth that is less than the first depth, an interference fit of the free end of the first post with the sidewall of the first socket and an interference fit of the free end of the second post with the sidewall of the second socket, in use, causing the lower surface of the strap to be suspended above the first and second general lower surfaces of the respective first and second mat components.

8. The floor mat of claim 5, wherein the free ends of the first and second posts have barbs with beveled top surfaces, such that more force will be needed to pull each post out of a respective socket than will be needed to insert the post into the respective socket.

9. The floor mat of claim 5, wherein each socket has a cylindrical sidewall.

10. The floor mat of claim 5, wherein a fifth diameter of the first socket is taken near the roof of the first channel and a sixth diameter of the first socket is taken at a point remote from the roof of the first channel, the sixth diameter being greater than the fifth diameter, a seventh diameter of the second socket being taken near the roof of the second channel and an eighth diameter of the second socket being taken at a point remote from the roof of the second channel, the eighth diameter being greater than the seventh diameter.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further aspects of the invention and their advantages can be discerned in the following detailed description as read in conjunction with the drawings of exemplary embodiments, in which like characters denote like parts and in which:

(2) FIG. 1A is a top perspective view of an anti-fatigue mat assembled from a middle mat component and two end mat components;

(3) FIG. 1B is a bottom perspective view of the anti-fatigue mat shown in FIG. 1A;

(4) FIG. 2A is a top perspective view of an anti-fatigue mat assembled from two end mad components and a corner mat component;

(5) FIG. 2B is a bottom perspective view of the anti-fatigue mat shown in FIG. 2B;

(6) FIG. 3 is a top perspective view of one embodiment of a connector according to the invention;

(7) FIG. 4 is a bottom perspective view of a middle mat component prior to assembly into a complete mat;

(8) FIG. 5 is a bottom perspective view of an end mat component prior to assembly into a complete mat;

(9) FIG. 6 is a bottom perspective view of a corner mat component prior to assembly into a complete mat;

(10) FIG. 7 is a sectional view showing two mat components joined together with a connector, and illustrating two possible alternative embodiments of sockets formed in the mat components; and

(11) FIG. 8 is a top perspective detail of an alternative corner mat component.

DETAILED DESCRIPTION

(12) FIGS. 1A and 1B show a floor mat system or modular floor mat indicated generally at 100. The depicted system 100 is linear and comprises a middle mat component 102 and two end mat components 104A and 104B. Mat components 104A and 104B can be identical to each other. In this illustrated embodiment, six connectors 106A, 106B, 106C, 106D, 106E and 106F are used to fasten mat component 104B to mat component 102 and to fasten mat component 102 to mat component 104B. The connectors 106A-F can be identical to each other.

(13) FIGS. 2A and 2B illustrate another possible floor mat system or modular floor mat 200. System 200 is comprised of a corner mat component 202 and, as joined to it along respective lateral boundaries, mat component 104A and mat component 104B. As in modular mat 100, six connectors 106A-F are used to fasten mat component 104B to mat component 202 and to fasten mat component 202 to mat component 104A.

(14) Each of the mat components 102, 104, 202 may be formed of a resilient material such as a foamed elastomer. More particularly, each of the mat components 102, 104, 202 may be cast using a molten foaming polyurethane. After hardening, each of the mat components 102, 104, 202 will have a fluid-impervious flexible skin and a foamed interior.

(15) Each of the mat components 102, 104 and 202 have two kinds of edges or lateral boundaries. For those lateral boundaries not meant to be abutted to the lateral boundaries of adjacent mat components, the lateral boundaries can be beveled edges 108, which help prevent a user tripping over them. Each beveled edge 108 laterally and downwardly extends at an angle from a planar top surface 110 of the mat component to a substantially planar, general bottom surface 112 thereof. As completely assembled, system 100 and system 200 will have overall external lateral boundaries that are all beveled edges 108.

(16) The other kind of lateral boundary possessed by each of the mat components 102, 104, 202 is a lateral boundary meant to abut another lateral boundary. Each end mat component 104 has a single lateral boundary 114. The middle mat component 102 has two opposed lateral boundaries 116 and 118 which, in the illustrated embodiment, are parallel to each other. The corner mat component has mateable lateral boundaries 204 and 206 that are disposed at an angle to each other, such as 90 degrees. Each of these lateral boundaries 114, 116, 118, 204, 206 are adapted to be abutted and mated with one of the remaining lateral boundaries. In the illustrated embodiment, the lateral boundaries 114, 116, 118, 204 and 206 are, apart from a small degree of rounding near their top ends, planar and perpendicular to the top and bottom surfaces of the respective mat component. This makes them easy to put together. But in alternative embodiments, some of the lateral boundaries 114, 116, 204 and 206 could take curved or other nonstraight shapes, and in this instance others of the lateral boundaries would have complementary shapes. For example, lateral boundaries 116, 118 could be convex, and in that instance lateral boundaries 114 would be concave. As other examples, all mating lateral boundaries could be sinusoidal, toothed or interdigitated.

(17) FIGS. 1A, 1B, 2A and 2B illustrate only two of an infinite number of complete mats that can be assembled from the mat components. For example, the linear mat 100 shown in FIGS. 1A and 1B could be further extended by using two or more middle mat components 102 and joining these together. As another example, a mat system could be assembled from four corner mat components 202 and a number of middle mat components 102, to create an endless mat around a work island or station. Mat components 102, 104 and 202 permit the assembly of an antifatigue mat system that is customized to a particular standing work space. In other embodiments, the mat components could be formed as sections of an annulus, such that the assembled system is an endless curved ring. In yet other embodiments, some mat components could be straight, and others curved through an angle of less than ninety degrees, such that a curved and recurved path could be created.

(18) FIG. 3 illustrates a connector 106, which can be the same as any of connectors 106A-F. Connector 106 at least has a first strap 300 and, upwardly extending from an upper surface 302 of strap 300, a first post 304. In use, the strap 300 is disposed in a horizontal plane and extends from first post 304 to a second post 306, which, like post 304, upwardly extends from the upper strap surface 302. The strap 300 is relatively thin and wide. Post 304 is laterally spaced from post 306 and the posts 304, 306 in the illustrated embodiment are formed around respective vertical and parallel axes.

(19) In the illustrated embodiment, the strap 300 and posts 304, 306 are integrally molded from a plastic such as polypropylene.

(20) The posts 304, 306 each may have a cylindrical shaft 308 and may terminate in an enlarged head 310. In the illustrated embodiment, each head 310 includes a circumferential barb 312 formed by an upper conical surface 314 and a lower horizontal annular surface 316.

(21) In the illustrated embodiment, the connector 106 further has a third post 318 and a fourth post 320, which can be identical in form to first and second posts 304, 306. Post 318 is spaced from posts 304 and 306. Post 320 is spaced from each of posts 304, 306 and 318. The connector 106 in this embodiment has second, third and fourth straps 322, 324 and 326 that are similar in width and thickness to strap 300. Strap 322 connects post 304 to post 318. Strap 324 connects post 318 to post 320. Strap 326 connects post 320 back to post 306. In illustrated embodiment, the posts 304, 306, 320 and 318 form corners of a quadrangle, and straps 300, 326, 324 and 322 form its sides. In use, the straps 326 and 322 each will be spaced from and parallel to a mat component lateral boundary, while straps 300 and 324 will cross two abutting mat component lateral boundaries.

(22) The illustrated connector 106 has four posts, but alternative connectors could have additional pairs of post and additional straps to connect them to the rest of the connector structure. There should be a sufficient number of transverse or cross-straps to resist any tensile force tending to separate the joined mat components from each other. This will vary according to how resistive to tensile forces each mat component is. A relatively soft or delicate mat component may require more cross straps and posts, while a relatively resilient or tough mat component will require fewer. The illustrated four-post connector has been shown to provide enough tensile resistance to prevent the foamed polyurethane mat components from separating from each other under typical tensile loads experienced during their use, such as might be imposed by the feet of the user during walking or running. Meanwhile, the parallel straps 322, 326 offer an enhanced degree of resistance to shear forces operating at right angles to the abutted mat component lateral boundaries.

(23) FIGS. 4, 5 and 6 illustrate the respective bottom surfaces 112 of mat components 102, 104 and 202. Bottom surfaces 112 share many characteristics. Each of them generally resides in a horizontal plane, but may have surface texture to aid in gripping the floor, such as debossed or embossed wavy ribs 400. Each of the mat components 102, 104 and 202 has a plurality of cavities 402 formed adjacent one or more lateral boundaries 116, 118, 114, 204 and 206. In the illustrated embodiment, there are three such cavities 402 per lateral boundary, and they are spaced apart from each other. Each of these cavities 402 is meant to receive one-half of a connector 106, as is seen in FIGS. 1B and 2B. The cavities 402 can be identical in shape to each other, so that any cavity 402 may receive one-half of any of a plurality of connectors 106, which also can be identical to each other.

(24) The structure of one of these cavities 402 will be described in conjunction with FIG. 6. Each cavity 402 has a socket 600 and, spaced from socket 600, a socket 602. A channel 604 extends from lateral boundary 204 laterally inwardly to the location of socket 600. A channel 606, which spaced from and is parallel to lateral boundary 204, extends from the location of socket 600 to socket 602. A channel 608 extends from the location of socket 602 laterally outwardly to lateral boundary 204. Roofs 610 of the channels 604-608 are upwardly (in this bottom view, downwardly) spaced from the general lower surface of 112 of the mat component 202. Each of sockets 600 and 602 opens onto a channel roof 610 and upwardly extends into the mat component interior. The lateral displacement of sockets 600 and 602 from the adjacent lateral boundary is chosen such that enough material of the mat component in question will resist commonly encountered tensile forces urging two abutting mat components apart, and will not tear or fail.

(25) FIG. 7 is a sectional detail showing a representative two of the mat components 102, 104 abutted together at their lateral boundaries 114, 116. A channel 604 in mat component 102 is lined up with a channel 700 in mat component 104, so that channels 604 and 700 are continuous with each other. The consumer may then install a connector 106 to join together the two mat components. As installed, post 304 is pushed into socket 702, while post 306 is pushed into socket 600. Strap 300 will be received in channels 604 and 700. For this purpose, the length of strap 300 is chosen to be approximately the sum of the lengths of channels 604 and 700.

(26) A vertical distance between the roofs 610 of the channels 604, 700 and the general lower surface 112 is greater than a predetermined depth, or thickness, between the upper surface 302 of strap 300 and a lower surface 704 thereof. In one embodiment, the vertical channel depth can be about 0.10 in., while a thickness between the strap upper surface 302 and the lower strap surface 704 can be 0.05 in. Since at least the enlarged post heads 310 are in an interference fit with the elastomeric sidewalls of sockets 600 and 702, the strap 300 is held against the roofs 610 of channels 604 and 700. This upwardly displaces the lower surface 704 of strap 300 from general lower surface 112, and keeps the lower surface 704 from contacting the floor on which the mat components 102, 104 are resting. This prevents marring the floor by connector 106.

(27) For the purpose of illustration only, the depicted socket 600 has a different shape than socket 702; in an actual commercial application and for ease of manufacture, sockets 600 and 702 would be the same. The socket 600 has a straight vertical cylindrical sidewall 706, the diameter of which may be chosen to be smaller than the diameter of barb 312. Post 306 will therefore be in interference with the sidewall 706, causing the elastomeric material surrounding sidewall 706 to buckle at the locus of contact. This, and the differences in slopes of the surfaces making up barb 312, are enough to pull the connector 106 up off of the floor on which general lower surface 112 is resting. The diameter of barb 312 may be 0.57 in., while the diameter of cylindrical sidewall 706 may be 0.50 in.

(28) Socket 702, on the other hand, has a sidewall 708 with a varying diameter. A diameter across a throat or constriction 710 is less than a diameter taken on the sidewall at a place upwardly spaced from the throat 710. For example, the throat 710 can have a diameter of 0.5 in, while a largest lateral diameter of the socket sidewall can be 0.56 in. Constricted throat 710 will cause an audible snap when the post 304 is inserted into the socket 702, giving an audible signal to the user that this connection has been completed.

(29) Both sockets 600, 702 have a height, as measured from the channel roof 610 to a ceiling 712 thereof, that is larger than the height of any of the posts 304, 306, 318, 320 as measured from the stop surface of the straps 300, 322, 324, 326. This permits a degree of overdrive when installing the connectors 106. For example, the difference in heights can be 0.05 in.

(30) In the illustrated embodiment, all of the sockets are blind, and sufficient mat material overlays them that the posts 300, 322, 324, 326 won't be felt by a person standing on the mat.

(31) FIG. 8 shows an alternative embodiment of corner mat component 202. In this embodiment, the inner corner 800 is radiused, as shown, instead of presenting a sharp angle. This makes the inner corner of the mat more aesthetically pleasing and easier to clean. The radius of the corner may be about 0.5 in.

(32) In summary, a modular anti-fatigue mat system has been shown and described that permits users to easily assemble anti-fatigue mats that have extended areas and varying overall shapes. Once assembled, the mat components will stay that way and will resist tensile and shear forces tending to separate them. The connectors used to assemble the mat components are hidden from view once the mat is assembled, resulting in a less cluttered appearance and allowing for easier cleaning.

(33) While illustrated embodiments of the present invention have been described and illustrated in the appended drawings, the present invention is not limited thereto but only by the scope and spirit of the appended claims.