JPH08502463A - Plastic pallet assembly - Google Patents

Abstract

(57) [Summary] The disclosed plastic pallet (10) includes a pallet base (20) having a substantially rectangular shape, a pallet deck (100) having a substantially rectangular shape, and a plurality of connectors (11) for connecting the base and the deck. And. The pallet base (20) has a pair of side members (31), a pair of end members (32), and a pair of transverse members (33, 34). The pallet deck (110, 210) is generally rectangular and has a flat outer surface (122, 222) with perimeter reinforcement means and an inner surface (121, 221) with reinforcement structure. Project outward from the inner surface.

Description

DETAILED DESCRIPTION OF THE INVENTION Plastic Pallet Assembly Technical field The present invention relates to a pallet for storing and shipping goods, and more particularly to a pallet having a single base and a single deck connected by a plurality of connectors. The pallet is easily assembled to support the goods and easily disassembled for shipping and storage. Background technology It is common to transport goods on pallets and store them. Goods placed on pallets are maintained above the floor, which is an area where the floor is below, the floor is rough, or the floor is a very important factor. Is very advantageous in. Standard pallets are particularly convenient when handling things, as the blades of the forklift can be inserted into the lanes provided in the pallet and the pallet can be manipulated by the forklift device. Typically, pallets are formed from wood. In the past, wooden pallets have been advantageous in terms of economy, simplicity and durability, in principle because no other suitable material was available. However, wooden pallets are very heavy and require expensive manual labor in manufacturing. In the past decades, disposable pallets have been proposed, and with the growth of the plastics industry, a wide range of plastics have been studied to determine their suitability for use in manufacturing pallets. Plastic pallets are easier to mold, stronger and lighter than wooden pallets. Also, these pallets are formed from recyclable materials. In addition, plastic pallets are more durable than wooden pallets. A modern plastic pallet that is lightweight, durable, capable of carrying large loads, easy to manufacture, and preferably with a minimum number of replaceable parts, is a deck set up on January 23, 1991. It is disclosed in U.S. patent application Ser. No. 644,928 filed as a plastic pallet with a solid and U.S. Pat. No. 4,843,76 for plastic pallets. The pallets and connectors disclosed in this patent and patent application have proven very successful. The pallets of the present invention have been developed in order to reduce costs, reduce the weight of pallets and improve strength without sacrificing durability. The pallet of the present invention is convenient for handling things and is intended for use with a forklift device. Disclosure of the invention The present invention comprises a second pallet base, or preferably a pallet deck, and a pallet base for use in combination with a plurality of connectors. The pallet base is connected to the second pallet base or pallet deck by a connector. According to a first aspect of the invention, the pallet base has two sides, an inner surface facing the interior of the assembled pallet and an outer surface facing outward from the assembled pallet. The pallet base has a plurality of substantially parallel side members with a plurality of openings for receiving connectors. The side member has a hook-shaped cross section. The concave surface of the side member is the outer surface. The pallet further comprises a pair of substantially parallel end members that are substantially perpendicular to the side members and that are connected to the side members and that have a plurality of openings for receiving connectors. This end piece also has a hook-shaped cross section. Again, the concave surface of the end member is the outer surface. A first cross member having a plurality of openings for receiving a connector is located approximately midway between the two end members and is connected to the end members. The first transverse member has a U-shaped cross section with a concave surface that is the outer surface. The second cross member, which does not have an opening for receiving the connector, is located approximately midway between the two side members. The second transverse member also has a U-shaped cross section with a concave outer surface. The inner surface of the pallet base has internal reinforcing elements protruding from itself, which internal reinforcing elements are a plurality of transverse internal ribs spaced apart from one another. The opposite outer surface has an external reinforcing element protruding from itself, the external reinforcing element being a plurality of transverse external ribs spaced apart from each other. According to another feature of the invention, the pallet base further comprises a generally X-shaped outer rib, the first transverse member intersects the second transverse member and the side members are generally V-shaped exterior. Having a rib, the second transverse member intersects its outer rib. The opening is formed by a sleeve attached to the end member, the side member, and the first transverse member by spokes, each sleeve having an outer side with a recess for supporting a portion of the connector. It has a contact portion. The pallet base also has a circular support wall that projects outwardly from the outer surface adjacent the opening for each corner connector. According to a further feature of the present invention, two pallet bases for connecting to the pallet base by a plurality of connectors are disclosed. Each pallet base is generally rectangular in shape and has a first side, an opposite second side, a first end and an opposite second end. The pallet base further has a substantially flat outer surface with perimeter strengthening means. The perimeter strengthening means has a perimeter end wall and at least one intermediate sloping end wall, one sloping end wall having an outlet. In the first embodiment, the end perimeter strengthening means has a substantially vertical perimeter end wall and a first beveled end wall integrally provided with the second beveled end wall. The first inclined end wall has a discharge port. The lateral perimeter strengthening means has a substantially vertical peripheral sidewall and a first sloping sidewall integrally formed with the second sloping sidewall. The first inclined side wall has a discharge port. The intermediate side walls, which are spaced apart from each other and are provided in parallel, are integrally provided on the peripheral end wall and the flat portion of the outer surface, extend over the peripheral end wall and the flat portion of the outer surface, and are separated from each other. The parallel intermediate end walls are integrally provided on the peripheral side wall and the flat portion of the outer surface, and extend over the peripheral side wall and the flat portion of the outer surface. Both the side and end reinforcement means have hook-shaped cross sections. In a second embodiment, the end perimeter strengthening means comprises a substantially vertical first peripheral end wall and a substantially vertical second peripheral end connected by an integrally provided beveled end wall. And a part wall. The beveled end wall has an outlet. Similarly, the side perimeter strengthening means has a substantially vertical first peripheral side wall and a substantially vertical second peripheral side wall connected by an integrally provided beveled end wall. The inclined side wall has an outlet. Intermediate side walls that are parallel to each other and are flush with the outer surface are provided integrally with the first peripheral end wall and the second peripheral end wall, and include the first peripheral end wall and the second peripheral end wall. An intermediate end wall that extends over the peripheral end wall and is provided in parallel with the outer surface so as to be flush with the outer surface is integrally provided on the first peripheral side wall and the second peripheral side wall. It extends over the 1st side wall and the 2nd side wall. Both decks have an inner surface, which is provided with reinforcing structures that project outward from the inner surface. The stiffening structure has a plurality of generally rectangular chambers formed by a plurality of parallel end walls and a plurality of side walls. Most of the compartments have holes for evacuation. Further, the two decks include a first opening row adjacent to the first side of the deck, a second opening row adjacent to the second side of the deck, a first opening row and a second opening row. Parallel to the first opening row and an intermediate opening row arranged between the first opening row and the second opening row, all of which are for receiving a connector. In addition, a side wall disposed in the center that divides the small chamber into two substantially equal parts is provided along the third opening row. The deck and base openings are formed by sleeves attached by spokes, each sleeve having an outer abutment with a recess for supporting a portion of the connector. Circular side support walls are provided adjacent the corner openings of the deck. In the first embodiment of the deck, the chambers that are diagonally adjacent to the corner openings of the deck have diagonal intermediate transverse walls, diagonal intermediate transverse walls, and adjacent gussets. In addition, a chamber that is diagonally adjacent to a chamber having a diagonal intermediate cross member has four sloping transverse walls. Also, selected chambers between the openings of the third row of openings have sloping transverse walls. Finally, the end wall adjacent to the peripheral end wall has a gusset attached to the end wall. Also shown are second and third examples of pallets. Other advantages and features of the invention will be apparent with reference to the following drawings and detailed description of the invention. Brief description of the drawings FIG. 1 is a top perspective view of a first embodiment of a plastic pallet having a base, a deck and a plurality of connectors manufactured according to the technique of the present invention. FIG. 2 is a plan view of the base of the pallet of FIG. FIG. 3 is a bottom view of the base of the pallet of FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. FIG. 7 is a cross-sectional view taken along line 7-7 of FIG. FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. FIG. 9 is a cross-sectional view taken along the line 9-9 of FIG. FIG. 10 is a plan view of a first embodiment of the deck of the pallet of FIG. 11 is a bottom view of the deck of FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. FIG. 17 is a plan view of a second embodiment of the deck of the pallet of FIG. FIG. 18 is a bottom view of the deck of FIG. 19 is a cross-sectional view taken along the line 19-19 of FIG. 20 is a cross-sectional view taken along the line 20-20 of FIG. 21 is a sectional view taken along line 21-21 of FIG. 22 is a cross-sectional view taken along the line 22-22 of FIG. 23 is a cross-sectional view taken along the line 23-23 of FIG. FIG. 24 is a perspective view of a second embodiment of a plastic pallet having a base, a deck, and a plurality of connectors as seen from above. 25 is a plan view of the deck of the pallet of FIG. FIG. 26 is a right front view of the pallet of FIG. 24, and the left, front, and rear front views are the same. 27 is a bottom view of the base of the pallet of FIG. 24. FIG. 28 is a perspective view of a third embodiment of a plastic pallet including a base, a deck and a plurality of connectors, as seen from above. 29 is a plan view of the deck of the pallet of FIG. 28. 30 is a bottom view of the base of the pallet of FIG. 28. 31 is a front front view of the pallet of FIG. 28, and a rear front view is a mirror image thereof. 32 is a right side front view of the pallet of FIG. 28, and a left side front view is a mirror image thereof. BEST MODE FOR CARRYING OUT THE INVENTION While the present invention allows many different forms of embodiments, it should be understood that the disclosure of the present application is considered to be an example of the principles of the invention and the broad features of the invention are not limited to the embodiments shown. The detailed preferred embodiments of the invention are shown and disclosed herein in the drawings. A. Pallet assembly FIG. 1 of the drawings shows a plastic pallet, indicated generally by the reference numeral 10, which pallet has three main components. The main components are a base 20, a deck 100, and a plurality of connectors 11. The connector 11 interconnecting the deck and the base is specially designed to assemble pallets without the need for special tools. The plastic pallet allows the connector to snap onto the deck. Details of this connector are disclosed and claimed in the same inventor invention, U.S. Pat. No. 4,843,976, to a plastic pallet, which is hereby incorporated by reference. In the preferred embodiment, the pallet has twelve connectors 11. Both the deck and the base have an opening forming an enclosing abutment with a recess below the exposed surface and the connector is flexible with barbs that engage the abutment. With a tongue. The pallet 10 has opposite side portions 13 and opposite end portions 14. In the illustrated embodiment, the connectors are located between the four corners of the base and deck and between the corners along the pallet edges 14 and between the corners along the pallet sides 13. It is shown to be arranged in two rows. The connector 11 is arranged such that the blades of a forklift are inserted into the side passages 15 and the end passages 16 in order to lift and move the assembled pallets and the goods placed on the pallets. B. base The base 20 of the present invention, shown in detail in FIGS. 2-9, is used below deck 100 and, when used, is generally on the ground or floor. Since the item is usually not placed on the base 20, it is more like a frame structure, rather than a flat, continuous surface. The base has two surfaces, an inner surface 21 and an outer surface 22. The outer surface 22 is a surface facing outward from the pallet, particularly a surface that faces downward when the pallet is formed and contacts the ground or floor. The inner surface 21 is a surface facing the inside of the pallet, that is, the side to which the connector is attached. The inner surface 21 is shown in FIG. 2 and the outer surface 22 is shown in FIG. The base 20 is generally rectangular. The base has a first side 23, an opposite second side 24, a first end 25 and an opposite second end 26. The base structure itself has a pair of substantially parallel side members 31 with a plurality of openings 17 for receiving the connector 11. A pair of substantially parallel end members 32 are provided that are substantially perpendicular to and are connected to the side members. The end member, like the side member 31, has a plurality of openings 17 for receiving the connector 11. A first cross member 32 with an opening 17 for accommodating the connector 11 is arranged between the end members 32 and is connected to the end members. A second transverse member 33 with an opening 17 for accommodating the connector 11 is arranged between the side members 31 and connected to that side member. Referring to FIG. 6, a cross section of an end member 32 similar to the side member 31 is shown. The end member 32, which is similar to the side member 31, has a hook-shaped cross section. Particularly at the first end 25, the end member has a horizontal portion 34 which is provided integrally with an upwardly and inwardly projecting portion 35 and is then connected to a second horizontal portion 36. It The second horizontal portion 36 is located above the first horizontal portion 34 adjacent to the first end 25. The second horizontal portion 36 terminates as a vertical portion 37. Therefore, the concave surface formed by the portion 35 protruding upward and inward of the end member 32 (also the side member 31), the second horizontal portion 36, and the vertical portion 37 is the outer surface 22. The inner surface 21 is provided with an internal reinforcing element, which projects outwardly from the inner surface 21. These internal stiffening elements include a plurality of transverse internal ribs 38 integrally spaced from each other on the inner surface of the first horizontal portion 34, the upwardly and inwardly projecting portion 35, and the second horizontal portion 36. is there. The inner surface 38a of the transverse inner rib 38 functions as a forklift blade guide or bevel. Therefore, when the blade hits the inclined surface, the blade slides along the inclination to an appropriate position without pressing the pallet. Similarly, the opposite outer surface 22 is provided with an external stiffening element, which projects from the outer surface 22. These external reinforcement elements are a plurality of transverse external ribs 39 that span the outer concave surface of the side or end members. Referring to FIG. 5, a cross section of the second cross member 34 is shown. The second cross member 34, like the first cross member 33, has a U-shaped end face. In particular, it has a horizontal portion 41 on the side, which is provided integrally with the upwardly and inwardly projecting portion 42 and is then connected to the second horizontal portion 43. The second horizontal portion 43 is located above the first horizontal portion 41 adjacent to the side portion. Therefore, the concave surface formed by the portion 42 protruding upward and inward and the second horizontal portion 43 is the outer surface 22. The inner surface 21 of the transverse members 33, 44 is provided with an internal reinforcing element, which projects outward from the inner surface 21, and which internal reinforcing element is above and inside the first horizontal portion 41. The parallel transverse inner ribs 38 are provided integrally with the inner surfaces of the protruding portion 42 and the second horizontal portion 43 so as to be spaced apart from each other. Similarly, the opposite outer surface 22 is provided with an external stiffening element which projects from the outer surface 22 and which is a transverse outer rib 39 which spans the outer concave surface of the transverse member. is there. As shown in FIGS. 2 and 3, the side, end, and cross members have webs 40 at points connected to each other for added strength. Further, as shown in FIG. 3, the outer surface 22 is provided with additional support ribs. In particular, the side member 31 has a generally V-shaped outer rib 44 at the junction where the second cross member intersects the two side members. In addition, the outer surface 22 has a generally X-shaped outer rib 45 at the juncture where the first transverse member 33 intersects the second transverse member 34. Openings 17 for the connector 11 are formed by sleeves and spokes formed in the end members, the side members and the first cross member. It has been found that in practice, 12 openings are sufficient. There are actually three rows of openings, the first row of openings is on the first side member 23 and the second row of openings is on the second side member 24, either the intermediate row of openings or the third row of openings. The opening row is arranged in parallel to the first opening row and the second opening row of the first cross member 33, and between the first opening row and the second opening row. Each row has one opening at the end (with the corners of the first and second opening rows and the center of the end members 32, 33 of the third opening row) and two intermediate openings. And a department. As clearly shown in FIGS. 2, 3 and 4, the base 20 has an opening 17 suitable for receiving the tongue of the connector. The opening 17 is surrounded below the plane of the adjacent outer surface 66 of the base by an outer abutment 51 with a recess. The recessed outer abutment 51 is defined by an inner sleeve 52 connected to an outer sleeve 54 by spokes 53. The outer sleeve 54 is connected by a second spoke 55 to a third sleeve 56 formed on the base. Thus, the connector is snapped onto the base by exerting an axial force on the connector at the inner surface and the barb of the connector is snapped into place in the outer abutment with the recess. . In this structure, the barbs do not extend beyond the plane of the outer surface. After assembling all the connectors into one base, arrange the deck as shown in FIG. 1 and apply force to the outer surface of the deck to complete the assembly of the plastic pallet. As shown in FIGS. 3 and 8, the base of the pallet has a circular support wall 57 that projects outwardly from the outer surface 22 adjacent the opening of the connector at each corner. C. First deck In the preferred embodiment as shown in FIG. 1, the base 20 is connected to the deck 100 via a connector. Products are placed on this deck. Two deck embodiments are disclosed herein, the first embodiment is shown in FIGS. 10-16 and the second embodiment is shown in FIGS. 17-23. FIG. 10 of the drawings shows a first deck 110 of the present invention. The deck 110 has two sides, an inner surface 121 (Fig. 11) and an outer surface 122 (Fig. 10). The outer surface 122 is a surface facing outward from the pallet, particularly a surface facing upward and in contact with a product placed on the pallet. The inner surface 121 is the surface facing the inside of the pallet, that is, the surface facing the side to which the connector is attached. The deck 110 is generally rectangular. The deck 110 has a first side 123, an opposite second side 124, a first end 125, and an opposite second end 126. The outer surface 122 is substantially flat and has perimeter strengthening means. The end perimeter strengthening means (FIG. 13) has a substantially vertical peripheral end wall 131 and a first beveled end wall 132 integrally provided with the second beveled end wall 133. The first inclined end wall 132 has a discharge port 134. Intermediate side walls 135 that are spaced apart from each other and provided in parallel are integrally provided on the peripheral end wall 131 and the flat portion of the outer surface, and extend over the peripheral end wall 131 and the flat portion of the outer surface. Similarly, the lateral perimeter strengthening means (FIG. 14) has a substantially vertical peripheral sidewall 141 and a first sloping sidewall 142 integrally formed with the second sloping sidewall 143. The first inclined side wall 142 has a discharge port 144. Intermediate end walls 145 that are spaced apart from each other and provided in parallel are integrally provided on the peripheral side wall 141 and the flat portion of the outer surface, and extend to the peripheral side wall 141 and the flat portion of the outer surface. Both the side perimeter reinforcement means and the end perimeter reinforcement means have hook-shaped cross-sections. The concave surface of the perimeter strengthening means is the outer surface 122. The first sloping end wall 132 and the first sloping sidewall 142 function as guides or slopes for the blades of a forklift. Thus, the blade does not push the pallet when it hits the sloped wall, but slides along the slope to the proper position. The inner surface 121 of the deck has a reinforcing structure that projects outwardly from the inner surface 121. The reinforced structure has a plurality of small chambers 151 formed by a plurality of parallel end walls 152 and a plurality of side walls 153. The small chamber 151 is substantially rectangular and separate from the surrounding small chamber 151a, and the small chamber 151 is approximately the same size. The matrix formed by these end walls 152 and side walls 153 is shown in FIG. Most of the surrounding small chamber 151a has a second end wall 152a between the end walls 152 and a second side wall 153a (FIG. 13) between the side walls 152. The gusset 157 is provided adjacent to the second end wall 152a and the second side wall 153a in the small chamber 151 adjacent to the surrounding small chamber including the second wall. Gusset 157 is perpendicular to end wall 152. As previously mentioned, there are preferably twelve openings in both the base and deck to accommodate the connectors. The openings are designated by reference numeral 111. The deck 110 has a first row of openings 112 adjacent to the first side 123, a second row of openings 113 adjacent to the second side of the deck 124, a first row of openings 112 and second openings. There is an intermediate opening row 114 which is parallel to the partial row 113 and is arranged between the first opening row 112 and the second opening row 113. Like the base, the openings 111 in the base 110 for the connector 11 are formed by sleeves and spokes formed in the deck. As shown in FIG. 12, the deck has an opening 111 suitable for receiving the tongue of the connector. The opening 111 is surrounded below the plane of the adjacent outer surface 122 of the deck by an outer abutment 161 with a recessed recess. The recessed outer abutment 161 is defined by an inner sleeve 162 connected to an outer sleeve 164 by spokes 163. The outer sleeve 164 is connected by a second spoke 165 to a third sleeve 166 formed on the deck. Thus, the connector is snapped onto the deck by exerting an axial force on the connector on the inner surface and the barb of the connector is snapped into place on the outer abutment 161 with the recess. To be In this structure, the barbs do not extend beyond the plane of the outer surface. After assembling all the connectors into one deck, the base is placed as shown in FIG. 1 and a force is applied to the outer surface of the deck to complete the plastic pallet assembly. With further reference to FIG. 11, for added strength, a centrally located central sidewall 154 is provided that substantially bisects the small chamber 151 along the third row of openings 114. It is also worth noting that most of the small chambers 151 have holes 155 for evacuation to reduce the amount of material used. This hole is not large to avoid the problem of items falling from the deck. As shown in FIGS. 11 and 14, the deck of the pallet has a circular support wall 158 which projects outwardly from the inner surface 121 adjacent the openings 111 for the connectors at each corner. The spokes 158a project inwardly from the circular support wall 158 and terminate as circular sleeves 158b. On the opposite side of the circular support wall 158, the spokes 158a and the sleeve 158, ie on the outer surface 122, a circular recess is provided for accommodating the rubber pad 159a. Referring again to FIG. 11, the chamber 151 diagonally adjacent to the aforementioned opening 111 at the corner of the deck has a diagonal intermediate transverse wall 171. These compartments 151 with diagonal intermediate transverse walls 171 further have adjacent gussets 157 but no holes. The compartments 151 that are diagonally adjacent to these compartments with diagonal intermediate transverse members 171 have four inclined transverse walls 172 that project inwardly from the corners of the compartments. As can also be seen in the drawings, the small chambers 151 selected between the openings 111 of the third central opening row 114 of openings have inclined transverse walls 173 projecting inwardly from the corners of the small chambers. 11 and 15 show a perimeter reinforcement structure and a chamber located between the two central openings 111 around the perimeter. The blade of the forklift does not enter the pallet adjacent to this part, so there is no intermediate end wall as well as the first or second inclined side wall. Rather, a substantially vertical second perimeter side wall 174 and a third perimeter side wall 175 are provided that are very closely spaced and parallel to each other. The discharge port 134 is arranged between them. Also, an additional diagonal center wall 176 (FIG. 11) projects from the two peripheral central openings 111 towards the center of the base for added strength. D. Second deck An example of the second deck is shown in FIGS. Figure 17 of the drawings illustrates a second deck 210 of the present invention. The deck 210 has two sides, an inner surface 221 (FIG. 18) and an outer surface 222 (FIG. 17). The outer surface 222 is the surface that faces outwardly from the pallet, faces upward, and contacts the items placed on the pallet. The inner surface 221 is a surface facing the inside of the pallet and the base, that is, the side to which the connector is attached. The deck 210 is generally rectangular. The deck 210 has a first side 223, an opposite second side 224, a first end 225, and an opposite second end 226. The outer surface 222 is substantially flat and has perimeter strengthening means. The end perimeter strengthening means (FIG. 20) comprises a substantially vertical first perimeter end wall 231 and a substantially vertical second perimeter end connected by an integrally provided beveled end wall 233. A wall 232. The inclined end wall 233 has a discharge port 234. An intermediate side wall 235, which is flush with the outer surface 222 and is spaced apart from and parallel to each other, is integrally provided on the first peripheral end wall 231 and the second peripheral end wall 232. It spans the wall 231 and the second peripheral end wall 232. Similarly, the lateral perimeter strengthening means (FIG. 23) includes a substantially vertical first perimeter side wall 241 and a substantially vertical second perimeter connected by an integrally provided angled end wall 243. A side wall 242. The inclined side wall 242 has a discharge port 244. An intermediate end wall 245, which is flush with the outer surface 222 and is spaced from and parallel to each other, is integrally provided on the first peripheral side wall 241 and the second peripheral side wall 242, and the first peripheral side wall 241 and the first peripheral side wall 241. 2 across the side wall 242. The concave surface of the perimeter strengthening means or of the chamber formed thereby is the outer surface 222. The sloping end wall 233 and the sloping side wall 243 act as a guide or bevel for the blade of a forklift. The inner surface 121 of the deck has a reinforcing structure which projects outwardly from the inner surface 121. The reinforced structure has a plurality of small chambers 251 formed by a plurality of parallel end walls 252 and a plurality of side walls 253. The small chamber 251 is substantially rectangular and is separate from the surrounding small chamber 251a, and the small chamber 251 has substantially the same size. The matrix formed by these end walls 252 and side walls 253 is shown in FIG. Twelve openings 211 for accommodating the connector are provided. As in the first embodiment 110, the deck 210 includes a first row of openings 212 adjacent to the first side 223, a second row of openings 213 adjacent to the second side 224 of the deck, and a second row of openings 213. An intermediate opening row 214, which is parallel to the first opening row 212 and the second opening 213 and is arranged between the first opening row 212 and the second opening row 213, is provided. The openings 111 in the base 210 for the connector 11 are formed by sleeves and spokes formed in the deck. As shown in FIG. 19, the deck has an opening 211 suitable for receiving the tongue of the connector. The opening 211 is surrounded below the plane of the adjacent outer surface 222 of the deck by an outer abutment 261 with a recessed recess. The outer abutment 261 with recesses is formed by the inner sleeve connected by spokes 263 to the outer sleeve 264. The outer sleeve 264 is connected by a second spoke 265 to a third sleeve 266 formed in the deck. Thus, the connector is snapped onto the deck by exerting an axial force on the connector at the inner surface and the barb of the connector is snapped into place on the outer abutment 261 with the recess. To be In this structure, the barbs do not extend beyond the plane of the outer surface. After assembling all the connectors on the deck, the base is placed as shown in FIG. 1 and a force is applied to the outer surface of the deck to complete the assembly of the plastic pallet. As best seen in FIG. 18, for added strength, a centrally located central sidewall 254 is provided along the third row of openings 214 that bisects the small chamber 251 into approximately two halves. It should be further noted that most of the aforementioned chambers 251 have holes 255 for evacuation, reducing the amount of material used. The holes aren't large to avoid the problem of items falling from the deck. As shown in FIGS. 18 and 22, the deck of the pallet has a circular support wall 258 that projects outwardly from the inner surface 221 adjacent the openings 211 for the connectors at each corner. The spokes 258a project inwardly from the circular support wall 258 and terminate as circular sleeves 258b. The opposite surface of the circular support wall 258, that is, the outer surface 222, is provided with a circular recess for accommodating the rubber pad 259 (FIG. 17). The perimeter reinforcement structure and the compartment located between the two central openings 211 around the perimeter are substantially vertical as the forklift blades do not enter this part of the pallet. A second embodiment of a plastic pallet 310 is shown in Figures 24-27. This second embodiment 310 also has a base 320 and a deck 300, which are held together by a plurality of connectors 11. A third embodiment of a plastic pallet 410 is shown in FIGS. 28-32 and has a base 420 and a deck 400. This too is held together by a plurality of connectors 11. The two pallet components, the base and the deck, are preferably injection molded from recycled materials such as polypropylene and similar thermoplastics. In addition, paints may be added to provide color combinations tailored to customer needs. Of course, the size, shape, and number of connectors can be changed without departing from the spirit of the invention. Further, although the same deck is shown and described, the shapes and configurations of the decks may be different. Clearly, the plastic pallet is a simple structure and can reduce inventory, since only two components are required substantially. Also, since only the base or deck requires a shoulder with a recessed recess, the structure of the mold for manufacturing a large deck is very simple and the manufacturing cost can be reduced. The complex design of the connector has several unique advantages. The design is such that all external forces are transmitted to the center of the core and withstand the greatest force without breaking. In addition, the connectors are formed such that they are formed in one piece in a single stage mold, reducing cost. The cost is further reduced because the connector and deck are preferably injection molded from recycled plastic. Another important advantage of plastic pallets is that the connector can be easily disassembled if it is damaged. This can be done by the owner without returning the pallet assembly to the manufacturer. While specific embodiments have been shown and described, many modifications are possible without departing from the spirit of the invention and the scope of protection is limited only by the appended claims.

[Procedure Amendment] Patent Act Article 184-8 [Submission Date] October 31, 1994 [Correction content]                               The scope of the claims 1. Second pallet base (20) or pallet deck (100, 110, 21 0) and a plurality of connectors (11) are used in combination with the outer peripheral portion and the inner surface ( 21) and an outer surface (22), and the connector (11) allows the second pattern Pallet connected to the let base (20) or deck (100 110, 210) A base (20), the pallet base (20) being substantially parallel. A pair of side members (31) and a substantially flat plate substantially perpendicular to the side members (31). And a pair of end members (32), the side member and the end members (31, 3). 2) means that both have a plurality of openings for accommodating the connector (11). The pallet base (20) is arranged and connected between the end members (32). Is disposed between the first cross member (33) and the side member (31). A second cross member (34), and the first and second cross members (33, 34) are , Both having a plurality of openings for accommodating the connector (11), The inner surface (21) is a plurality of spaced apart protrusions protruding from the inner surface (21). Having a number of transverse inner ribs (38), said opposite outer surface (22) being 22) having a plurality of spaced transverse outer ribs (39) protruding from each other. In the pallet base (20)   The side member (31) and the end member (32) have hook-shaped cross sections. The cross member (33, 34) has a U-shaped cross section. Let base. 2. The side member (31) and the end member (32) form the outer peripheral portion. The substantially horizontal first portion (34), the sloped portion (35), and the substantially horizontal first portion (34). 2 parts (36) and vertical part (37) The sloped portion (35), the horizontal second portion (36), and the vertical portion. The outer surface (22) with the minute (37) is concave. Pallet base (20) as described. 3. The transverse members (33, 34) have two sides with beveled portions (42). A substantially horizontal second portion (43), and the horizontal second portion (43) of the A substantially horizontal first portion (41) integrally provided on each of the two sides. The outer surface (22) of the sloped portion (42) and the horizontal second portion (43). The pallet base (20) of claim 1, wherein is a concave surface. 4. The opening (17) is formed by the spokes (53, 55) to form the end member ( 32), the side member (31) and the first transverse member (33). Formed by the sleeves (52, 54) ) Each has an outer contact portion (recessed portion) provided with a recess for supporting the connector (11). 51) characterized in that it has a pallet base (20). ). 5. Further comprising a generally X-shaped external rib (45), said first transverse member (33) ) Intersects the second transverse member (34) and the side member (31) is generally V-shaped. A second cross member (34) having an outer rib (44) in the shape of the outer rib (44). 44) and the opening (17) is defined by the spokes (53, 55). The end member (32), the side member (31), and the first transverse member (33). Formed by attached sleeves (52, 54), each of which is An outer contact portion (51) having a recess for supporting a part of the connector (11). ). The pallet base (20) according to claims 1 to 4, characterized in that 6. Second pallet deck (110, 210) or pallet base (20) and a plurality of connectors (11) are used in combination with the outer peripheral portion (123 ), A first side (123.223), and an opposite second side (124,224). , A first end (125, 225) and an opposite second end (126, 226) A generally rectangular pallet deck (110, 210), The deck (110, 210) is connected to the second pallet by the connector (11). The pallet deck connected to the deck (110, 210) or the base (20) (110, 210) is (a) a substantially flat outer surface (1) with perimeter strengthening means. 22, 222), and (b) an inner surface (121, 221) with a reinforced structure, The reinforcing structure projects outward from the inner surface (121, 221), and (c) the connector The deck (110, 210) of the first side (123) , 223) adjacent to the first row of openings (112, 212), and (d) the connector. (11) is housed and the second side portion (124, 2) of the deck (110, 219) is housed. 24) adjacent to the second row of openings (124, 224), and (e) the first row of openings. And parallel to the second row of openings (112, 113, 212, 213) and Intermediate openings arranged between these opening rows (112, 113, 212, 213) On a pallet deck (110, 210) further having rows (114, 214) And the perimeter strengthening means of the outer surface (112, 222) form the outer periphery. Connect to the substantially vertical peripheral wall (131, 141, 231, 241) at the apex Two adjacent inclined surrounding walls (132, 133, 142, 143, 232, 233, 242, 243), and the inclined peripheral wall (132, 133, 142). , 143, 232, 233, 242, 243) said outer surface (122, 222) Is a concave surface, and one of the inclined peripheral walls (132, 133, 142, 143, 2) 32, 233, 242, 2 43) has outlets (134, 144, 234, 244) and the inner surface ( 121, 221) with a plurality of parallel end walls (152, 252). A plurality of small chambers (151, 25) formed by a plurality of side walls (153, 253). 1. A pallet deck (110, 210) characterized by having 1). 7. Each of the small chambers (151, 251) is substantially rectangular and is substantially the same. The pallet deck (110, 21) according to claim 6, characterized in that it has a size. 0). 8. The small chambers (151, 251) along the intermediate opening row (114, 214). ) Is substantially bisected by a centrally disposed side wall (154, 254). A pallet deck (110, 210) according to claims 6 and 7, which is characteristic. 9. Most of the small chambers (151, 251) have holes (155, 255) for discharge. ). The pallet deck (110, 210) according to any of claims 6-8. 10. The openings (111, 211) are formed by the spokes (163, 263). Formed by the attached sleeves (162, 164, 262, 264) Each of the sleeves (162, 164, 262, 264) is connected to the connector ( 11) having an outer contact portion (161, 261) having a concave portion for supporting a part thereof. The pallet deck (110, 210) according to claim 6 or 9, ). 11. The first end (125, 255) and the second end (126) of the deck. , 226) adjacent to the opening (111, 211), 11) with circular side support walls (158, 258) adjacent to The pallet deck (110, 210) according to claim 6 to 10. 12. Diagonal to the opening (111) at the corner of the deck The chamber (151) adjoining to has a middle diagonal transverse wall (171) Pallet deck (110) according to claims 6 to 11, characterized in that 13. The chamber (151) having the diagonal middle transverse wall (171) , Further comprising adjacent gussets (157). The listed pallet deck (110). 14. In the small chamber (151) having the diagonal intermediate transverse wall (171) The small chambers (151) that are diagonally adjacent to each other have four inclined transverse walls (172). A pallet deck (110) according to claim 6 to 13, characterized in that . 15. Selected between the openings (111) of the intermediate opening row (114) 7. Chamber (151) according to claim 6, characterized in that it has an inclined transverse wall (173). Pallet deck (110) described in et al. 16. A generally rectangular pallet base (20) and a generally rectangular pallet deck (100, 110, 210), the base (20) and the deck (100, 1) Made of plastic having a plurality of connectors (11) for connecting with (10, 210) Of the connector (10) of the connector (10) A pair of substantially parallel sides with a plurality of openings (17) for receiving 11) A side member (31) and substantially perpendicular to the side member (31), A pair of substantially parallel end members (32) connected to (31) and the end members ( 32) has a plurality of openings (17) for accommodating the connector (11) Disposed between the end members (32) and connected to the end members (32) A first cross member (33), the first cross member (33) including the connector (11); The side member (3) has a plurality of openings (17) for accommodating. A second transverse member (34) disposed between 1) and connected to said side member (31). ), An inner surface (21) provided with an internal reinforcing element, said internal reinforcing element being Protruding from the surface (21) and having an opposite outer surface (22) with an external reinforcing element , The external reinforcing elements project from the outer surface (22) and 100, 110, 210) is the first side (123, 223) and the opposite second side Part (124, 224), the first end (125, 225), and the opposite second end ( 126, 226) and a substantially flat outer surface (122, 2) with perimeter strengthening means. 22), an inner surface (121, 221) with a reinforcing structure, said reinforcing structure being It projects from the inner surface (121, 22) to the outside and accommodates the connector (11). And next to the first side (123,223) of the deck (110,210) The first opening row (112, 212) in contact with the connector (11) and The first adjacent to the second side (124, 224) of the deck (110, 210) A row of two openings (113, 213) and said for accommodating said connector (11) The first opening row and the second opening row (112, 113, 212, 213) are flat. In rows and arranged between these openings (112, 113, 212, 213) On a plastic pallet (10) with a row of openings (114, 214) In addition, the end member (32) and the side member (of the pallet base (20) ( 31) has a hook-shaped cross section, and the hook-shaped concave portion is the outer surface. (22) and the front of the pallet base (20) with the first transverse member (33). The second transverse member (34) has a U-shaped cross section, and the U-shaped concave portion is The outer surface (22), which is the outer surface of the pallet deck (110, 210). Said perimeter strengthening means of said substantially vertical perimeter wall (131, 141, 231, 241) at the top Two adjacent slanted peripheral walls (132, 133, 142, 143, 232) connected to each other. , 233, 242, 243), and the inclined peripheral wall (132, 133, 14). 2, 143, 232, 233, 242, 243) said outer surface (122, 222). ) Is a concave surface and is one of the inclined peripheral walls (132, 133, 142, 143, 232, 233, 242, 243) are exhaust ports (134, 144, 234, 24). 4) and has the inner surface (121,2, 1) of the pallet deck (110, 210). 21) Said reinforcing structure comprises a plurality of parallel end walls (152, 252) and a plurality of sides. Having a plurality of small chambers (151, 251) formed by the walls (153, 253) A plastic pallet (10) characterized by: 17． The internal reinforcement elements of the pallet base (20) are spaced apart from each other. Is a plurality of transverse internal ribs that are struck,   The external reinforcement elements of the pallet base are a plurality of spaced apart 17. Pallet (10) according to claim 16, characterized in that it is a transverse outer rib. 18. The side member (31) of the pallet base (20) is generally V-shaped The outer rib (44) of the second cross member (34) intersects the outer rib (44). And has a generally X-shaped outer rib (45), said first transverse member (33) , Intersecting the second transverse member (34). The described pallet (10). 19. The small chambers (151, 251) of the pallet deck (110, 210) 23 is substantially rectangular and of approximately the same size. Pallet (10) as described in 1. 20. The intermediate opening row (114, 210) of the pallet deck (110, 210) 214) along the small chamber (151, 251) It is provided with side walls (154, 254) arranged in the center that bisect,   Most of the small chambers (151, 251) include the pallet decks (110, 210). ) Has a hole (155, 255) for discharging. The described pallet (10).

─────────────────────────────────────────────────── ─── Continued front page    (31) Priority claim number 29 / 012,508 (32) Priority date September 2, 1993 (33) Priority claiming countries United States (US) (81) Designated countries EP (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, M C, NL, PT, SE), OA (BF, BJ, CF, CG , CI, CM, GA, GN, ML, MR, NE, SN, TD, TG), AT, AU, BB, BG, BR, BY, CA, CH, CZ, DE, DK, ES, FI, GB, H U, JP, KP, KR, KZ, LK, LU, MG, MN , MW, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SK, UA, VN (71) Applicants Piggott, Maurice Jay.             United States, Illinois 60093, Wy             Netoka, Cherry Street 591 (72) Inventor Pigott, Brandon El.             United States of America, Illinois 60091, Wy             Lumet, Elmwood Avenue 1017 (72) Inventor Pigott, Schuyler F.             United States, Illinois 60004, Ar             Lynton Heights, North Pattons             Treat 1122 (72) Inventor Pigott, Peter S.             United States of America, Illinois 60091, Wy             Lumet, Elmwood Avenue 803 (72) Inventor Piggott, Maurice Jay.             United States, Illinois 60093, Wy             Netoka, Cherry Street 591

Claims (1)

[Claims] 1. Combined with a second pallet base or pallet deck and multiple connectors Used by connecting to the second pallet base or the deck with the connector. It is a continuous pallet base,   A pair of substantially parallel sides with a plurality of openings for receiving the connector Part members,   A plurality for accommodating the connector, which is substantially perpendicular to the side members. A pair of substantially parallel end members connected to the side member having an opening of   A plurality of openings for accommodating the connector are disposed between the end members. A first cross member connected to said end member,   A second cross member disposed between the side members and connected to the side members;   An inner surface with an internal reinforcing element, the internal reinforcing element projecting from the internal surface ,   An opposite outer surface with an external stiffening element, said outer stiffening element Pallet base protruding from the outer surface. 2. The internal reinforcing element is a plurality of transverse internal ribs spaced apart from each other. The pallet base according to claim 1. 3. The external reinforcing element is a plurality of transverse external ribs provided at a distance from each other. The pallet base according to claim 2. 4. The end member and the side member have a hook-shaped cross section, and the concave surface is The pallet base according to claim 3, which is the outer surface. 5. The first transverse member and the second transverse member have a U-shaped cross section, and The pallet base according to claim 4, wherein a surface is the outer surface. 6. The side member has a generally V-shaped outer rib, and the second cross member is The pallet base according to claim 5, which intersects with the outer ribs. 7. Further comprising a generally X-shaped outer rib, wherein the first cross member is the second cross member 7. The pallet base according to claim 6, which intersects the member. 8. The opening is formed in the end member, the side member, and the first transverse member. Formed by a sleeve mounted by spokes, said sleeve Each has an outer abutment with a recess for supporting a portion of the connector. The pallet base according to claim 7. 9. Combined with a second pallet base or pallet deck and multiple connectors Used by connecting to the second pallet base or the deck with the connector. It is a continuous pallet base,   A pair of substantially parallel sides with a plurality of openings for receiving the connector The part member and the side member have a hook-shaped cross section, and the concave surface is the outer surface. ,   A plurality for accommodating the connector, which is substantially perpendicular to the side members. A pair of substantially parallel end members connected to the side member having an opening of The end member has a hook-shaped cross section, the concave surface is the outer surface,   A plurality of openings for accommodating the connector are disposed between the end members. A first cross member connected to the end member, the first cross member having a U-shape A cross section of the concave surface is the outer surface,   A second cross member disposed between the side members and connected to the side members;   An inner surface provided with an internal reinforcing element, and the internal reinforcing element Projecting from the surface, the internal reinforcing elements are provided in a plurality of transverse interiors spaced apart from one another. A rib, the second transverse member has a U-shaped cross-section, and the concave portion is the outer portion. Surface,   An opposite outer surface with an external reinforcement element, said external reinforcement element being , A plurality of said external reinforcement elements protruding from said outer surface and spaced apart from each other. A pallet base that is a transverse outer rib of the. 10. Further comprising a generally x-shaped outer rib, wherein the first cross member comprises the second cross member Intersects the cross member,   The side member has a generally V-shaped outer rib, and the second cross member has an outer rib. Intersect with the rib   The opening supports the end member, the side member, and the first transverse member. Formed by sleeves attached to each of the The outer contact portion having a recess for supporting a part of the connector is provided. Pallet base as described. 11. A first side portion, an opposite second side portion, a first end portion, and an opposite side second end portion. Yes, combined with a second pallet deck or pallet base and multiple connectors Connected to the second pallet deck or base by the connector It is a generally rectangular pallet deck,   A substantially flat outer surface with perimeter strengthening means,   The perimeter strengthening means has a perimeter end wall and at least one intermediate beveled end wall. Then   The one intermediate beveled end wall has an outlet,   An inner surface having a reinforced structure, the reinforced structure being external to the inner surface. Project to the side,   The reinforcing structure is formed by a plurality of parallel end walls and a plurality of side walls. Has a small room of   A first opening adjacent the first side of the deck for receiving the connector It has a row of departments,   A second opening adjacent the second side of the deck for receiving the connector It has a row of departments,   Parallel to the first row of openings and the second row of openings, and in front of the first row of openings. A pallet deck having an intermediate row of openings arranged between the second row of openings. 12. Each of the chambers is substantially rectangular and of approximately the same size. Item 11. The pallet deck according to Item 11. 13. It was arranged at the center which divides the small chamber into two substantially equal parts along the third opening row. The pallet deck according to claim 12, comprising a side wall. 14. 14. The pallet of claim 13, wherein most of the chambers have holes for drainage. Deck. 15. The opening is formed by a sleeve mounted by spokes And each of the sleeves has a recess for supporting a portion of the connector. The pallet deck according to claim 14, which has an outer contact portion. 16. The opening at the corner of the deck is a circular side support wall adjacent to the opening. The pallet deck according to claim 12, further comprising: 17． The small chamber diagonally adjacent to the opening of the corner of the deck, 13. The pallet deck according to claim 12, having a diagonal intermediate transverse wall. 18. The chamber with the diagonal mid-transverse wall further protects adjacent gussets. The pallet deck according to claim 17, which is provided in. 19. It is diagonally adjacent to the chamber having the diagonal intermediate cross member. 19. The pallet deck according to claim 18, wherein the compartment has four sloping transverse walls. 20. Selected compartments between the openings of the third row of openings have slanted transverse walls. The pallet deck according to claim 19, which has. 21. An end wall adjacent to the peripheral end wall has a gusset attached to the end wall. 21. The pallet deck according to claim 20, further comprising: 22. A pallet base that is roughly rectangular,   A pallet deck that is almost rectangular,   A plug provided with a plurality of connectors for connecting the base and the deck It ’s a stick pallet,   The pallet base is   A pair of substantially parallel sides with a plurality of openings for receiving the connector Part members,   Substantially perpendicular to the side member and substantially parallel to the side member A pair of end members, and the end member includes a plurality of opening members for accommodating the connector. Has a mouth,   A first cross member disposed between the end members and connected to the end members; The first transverse member has a plurality of openings for accommodating the connector,   A second cross member disposed between the side members and connected to the side members;   An inner surface with an internal reinforcing element, the internal reinforcing element projecting from the internal surface ,   An opposite outer surface with an external reinforcement element, said external reinforcement element being , Protruding from the outer surface,   The pallet deck is   A first side, an opposite second side, a first end, and an opposite second end,   A substantially flat outer surface with perimeter strengthening means,   The perimeter strengthening means has a perimeter end wall and at least one intermediate beveled end wall. Then   The one slanted end wall has an outlet,   An inner surface having a reinforcing structure and the reinforcing structure projecting outward from the inner surface,   The reinforcing structure is formed by a plurality of parallel end walls and a plurality of side walls. Has a small room of   A first opening adjacent the first side of the deck for receiving the connector Departments,   A second opening adjacent the second side of the deck for receiving the connector Departments,   For the first row of openings and the second row of openings for receiving the connector A parallel intermediate row of openings arranged between the first row of openings and the second row of openings And a pallet. 23. The internal reinforcing elements of the pallet base are spaced apart from each other Multiple transverse internal ribs,   The external reinforcing elements of the base are a plurality of transverse externals spaced apart from each other. The pallet according to claim 22, which is a rib. 24. The end member and the side member of the pallet base have a hook shape. Has a cross-section, the concave portion is the outer surface,   The first cross member and the second cross member of the pallet base are U-shaped. 24. The pallet according to claim 23, which has a cross section, and the concave portion is the outer surface. 25. The side member of the pallet base has a generally V-shaped outer rib. , The second transverse member intersects the outer rib,   The pallet base further has a generally X-shaped outer rib, The member of claim 24, wherein the member intersects the second transverse member. The pallet on board. 26. Each of the compartments of the pallet deck is substantially rectangular and is approximately the same 23. The pallet of claim 22, which is sized. 27. The pallet deck is divided into approximately two halves along the third row of openings. Equipped with a centrally located side wall,   27. Most of the compartments have holes in the pallet deck for drainage. Palette described in. 28. The opening at the corner of the pallet deck is a circular side adjacent to the opening. The pallet according to claim 27, which has a part support wall. 29. The diagonally adjacent to the opening of the corner of the pallet deck The small chamber consists of a diagonal central transverse wall, a diagonal central transverse wall, and an adjacent gusset. 29. The pallet according to claim 28, having: 30. The pallet deck is paired with a small chamber having a diagonal intermediate cross member. The small chambers adjacent to each other in the direction of the angle line have four inclined transverse walls,   Selected chambers between the openings of the third row of openings have sloping transverse walls The pallet according to claim 29. 31. The end wall adjacent to the peripheral end wall of the pallet deck is 31. The pallet of claim 30, having wall mounted gussets. 32. The opening is formed by a sleeve mounted by spokes And each of the sleeves has a recess for supporting a portion of the connector. 32. The pallet according to claim 31, which has an outer contact portion provided with.