CN2863207Y - Sport skateboard - Google Patents
Sport skateboard Download PDFInfo
- Publication number
- CN2863207Y CN2863207Y CN 200520119805 CN200520119805U CN2863207Y CN 2863207 Y CN2863207 Y CN 2863207Y CN 200520119805 CN200520119805 CN 200520119805 CN 200520119805 U CN200520119805 U CN 200520119805U CN 2863207 Y CN2863207 Y CN 2863207Y
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- Prior art keywords
- width
- skateboarding
- groove
- jog
- layer
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Abstract
The utility model discloses a sports sliding plate, comprising a polymer top layer, an expanded polymer foam corn, a thermal-plastic polymer bottom layer with inner and outer layers, and a polymer foaming middle layer extending between the foaming corn and the bottom layer. The middle layer is thermally rolled on the inner surface of the bottom layer, the outer surface of the bottom layer is flat and arranged with at least one group of concave-convex part composed of longitudinal extending parallel alternative grooves and protrusions, the concave-convex part has some width, the grooves and protrusions are distanced on whole width. The utility model arranges concave-convex pattern on the outer surface of the bottom to improve the function at straight sliding and improves the stability. The utility model has simple production, low cost, and high working efficiency, which can improve strength, and prolong the service life.
Description
[technical field]
The utility model relates to a kind of skateboarding of recreational use, relates in particular to a kind of improvement lower surface characteristic, is laminated the skateboarding of system by foamed material layer.
[background technology]
Be known in the art with foaming and other floating material manufacturing surfing and other amusement slider technique.Sledge and slide plate with duroplasts manufacturing skiing usefulness also are known technology in the prior art.
For example, US Patent No 5328200 discloses a kind of plastic bottom and has worn impressed sled or skis, the general curved shape of its indentation, and width is at the 0.05-0.4 millimeter, and the degree of depth is at the 0.01-0.05 millimeter.This patent is made with foamed plastic, and the fore-and-aft distance between the indentation does not show that the indentation dozens of keeps flat side by side on the whole width of slide plate.These indentations can also can pass through Milling Process by grinding.
US Patent No 6290249 discloses a kind of skiing device, and its bottom has the groove of many incisions.These grooves seem to arrange not tight.These grooves are carved into lower surface, with router or the processing of other cutter sweep.
In any case it is useful that a kind of foaming core skis that has interval trough is provided, and the structure of base channel is provided with unreasonable in the prior art, adopt machine cut difficulty of processing height, the equipment needed thereby costliness, and groove is easy to generate stress and concentrates, and influences the intensity of slide plate.
[utility model content]
The purpose of this utility model provides a kind of improved foaming skateboarding, and its lower surface has groove and the lug boss that improves sliding capability, and improved performance can be processed and have in use to these grooves and lug boss economically.
Another purpose of the present utility model provides a kind of improved foaming skateboarding, is formed with narrow isolated stria on its lower surface.
Another purpose of the present utility model provides a kind of improved foaming skateboarding, and its bottom that has many grooves can heat be rolled in one or more other foaming layers of foaming plate.
The invention also discloses a kind of method of making the foaming skateboarding, this method lower surface at slide plate in the slide plate extrusion process is slotted.
The skateboarding that the utility model proposes comprises:
One polymer top;
The one polymer foaming core that expands;
One has the thermoplastic polymer bottom of inner surface and outer surface;
The one polymer foaming intermediate layer between described foaming core and described bottom of stretching, this intermediate layer heat rolls on the inner surface of described bottom;
Wherein: the outer surface of described bottom is straight and be provided with the jog that at least one group of longitudinal extension, parallel, the groove that replaces and lug boss constitute, and described jog has a width, and described groove and lug boss are spaced on described whole width.
Per inch can provide about 10 to 80 grooves on the width of described jog, and preferable scheme provides about 45 grooves.The width of described groove is that the degree of depth can be from 0.05 millimeter to 1 millimeter uniformly, and preferable scheme is 0.4 millimeter.
Each groove has a width in the utility model, on the described jog overall width of all grooves account for described jog width 20% to 80%, preferable scheme be the overall width of all grooves account for described jog width 50%.
The density of the core of foaming described in the utility model is less than the density in described intermediate layer.Described foaming core can comprise: two polymer foaming skins; One polymer inner layer between two foamed coatings; The density of described polymer inner layer is greater than described two foamed coatings.
The material of described foaming core can be any in polyurethane foam, polyethylene foam, the polypropylene expanded and foamed polystyrene.Described primer can be polyethylene or polypropylene.Described intermediate layer material can be a polyethylene foam or polypropylene expanded.The material of described foaming in-core layer and two foamed coatings can be selected polyethylene or polypropylene.
The skateboarding that the utility model proposes can be provided with the jog that many groups are made of groove and lug boss in lower surface.It between the jog flat surface.In a preferred embodiment, be provided with 3 groups of jogs, 4 groups or 5 groups of jogs also can be set as required.
The utility model compared with prior art, advantage is to be provided with at least one group of jog that is made of groove and lug boss at bottom outer surface, these jog lines have improved the performance of line sliding, particularly the beginner have been increased stability.In addition, the utility model has also proposed groove processing method simply and easily, has not only saved cost, and has improved operating efficiency, has also improved the intensity of slide plate, has prolonged service life.
[description of drawings]
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described in detail, wherein:
Fig. 1 is the schematic diagram of the improved skateboarding of the utility model;
Fig. 2 is the side view of skateboarding shown in Figure 1;
Fig. 3 is the bottom plan view of skateboarding shown in Figure 1;
Fig. 4 is the bottom plan view of skateboarding second embodiment shown in Figure 1;
Fig. 5 is the sectional view of skateboarding shown in Figure 1 along the 5-5 direction;
Fig. 6 is the enlarged diagram of part shown in the 6-6 among Fig. 5;
Fig. 7 is the sectional view of skateboarding the 3rd embodiment shown in Figure 1;
Fig. 8 is the sectional view of skateboarding second embodiment shown in Figure 1;
Fig. 9 is the utility model bottom processing lug boss and groove, and heat rolls the production schematic diagram on the intermediate layer;
Figure 10 is the local enlarged diagram that rolls the roller axial cross section among Fig. 9;
Figure 11 is the partial enlarged drawing of bottom among Fig. 9;
Figure 12 is the local enlarged diagram that rolls another embodiment of roller among Figure 10.
[specific embodiment]
Fig. 1 is the schematic diagram of the improved skateboarding of the utility model.Described skateboarding 15 roughly is straight, and its front end has upwards been lifted up, and the left and right sides is provided with handle.Shown in Fig. 2 and 3, slide plate 15 comprises a top surface 36 and lower surface 22, and lower surface has one and connects outer rim 37.The left and right sides side of slide plate 15 curves inwardly, and the point image hourglass shape is arranged.
Shown in Figure 3 is the first embodiment of the present invention.The lower surface 22 of slide plate 15 roughly is straight, comprises many longitudinal extensions, parallel groove 26 on it, has constituted the parallel lug boss of many longitudinal extensions 27 between these grooves.The whole length that these longitudinal extensions, groove parallel, that alternately occur and lug boss extend in slide plate 15 lower surface 22.In the embodiment shown in fig. 3, the jog 40 that has only one group of groove and lug boss to constitute is distributed on the whole width 38 of slide plate 15.
Fig. 4 shows second embodiment of slide plate 15, and lower surface 22 is provided with the jog 23,24 and 25 of three groups of grooves and lug boss formation in this embodiment.In the embodiment that Fig. 4 shows, the width 28 of jog 23 is approximately from 38 millimeters to 115 millimeters, and is best about 64 millimeters.The width 29 of jog 24 is approximately from 50 millimeters to 152 millimeters, and the best is about 115 millimeters.The width 30 of jog 25 is approximately from 38 millimeters to 115 millimeters, and the best is about 64 millimeters.Lateral separation 31 between the jog 23 and 24 is between 25 millimeters to 127 millimeters, and the best is 64 millimeters.Distance 32 scopes between the jog 24 and 25 are between about 25 millimeters to 127 millimeters, and the best is 64 millimeters.
As shown in Figure 5, skateboarding 15 is rolled together by four layers of heat.Top layer 18 is polyethylene foam sheets.The thickness of top layer 18 is between 2 millimeters to 12 millimeters, and the best is about 4.5 millimeters.The density of top layer 18 is at 4 to 10 pounds every cubic feet approximately, and the best is about 7 pounds every cubic feet.Top layer 18 also can be polypropylene expanded, and density range is at 2 to 6 pounds every cubic feet, and the best is about 3 pounds every cubic feet.
As an alternative, sandwich layer 16 also can be used polyurethane foam, and thickness is about 0.2 to 1.5 inch, and the best is 1 inch.Density range is about 35 to 95 pounds every cubic feet, and best is 65 pounds every cubic feet approximately.In this embodiment, between intermediate layer 19 and polyethylene sandwich layer 16, also be provided with an extra play (not shown).This extra play is the polyethylene foam layer, helps the polyurethane sandwich layer to roll on intermediate layer 19 (back also will illustrate).Other expanded polymer foamed core material also can use as the foamed polystyrene core.
Fig. 6 is the enlarged drawing that 6-6 indicates part among Fig. 5.In this zoomed-in view, can see the situation of fluting on the bottom outer surface 22.As shown in Figure 6, the outer surface 22 of bottom 20 has the groove 26 of one group of parallel longitudinal extension and the lug boss 27 between the groove.Groove is closely aligned at interval with lug boss is in the same place, and very tiny.In preferred embodiment, overall width 39 scopes of the lug boss 27 of groove 26 and middle adjacency are preferably 0.56 millimeter between 0.32 to 2.54 millimeter.Therefore, in the jog 40,23,24 or 25 that replaces parallel groove and lug boss formation, per inch has 10 to 80 grooves approximately, and the best is about 45 grooves of per inch.
The degree of depth 33 of groove 26 can change between about 0.05 to 1 millimeter, and optimum value is 0.33 millimeter.The width 34 of each groove about the overall width 39 of groove 26 and middle adjacent projections 27 20% to 80% between, the optimum width of groove 26 is about 50% of overall width 39.Therefore, the optimum width 34 of groove 26 is the same with the width 35 of lug boss 27.In preferred embodiment, width 34 and 35 is about 0.28 millimeter.
Fig. 8 is second embodiment of slide plate.In this embodiment, slide plate 50 has six layers, rather than four layers.Top layer 56 has identical structure with slide plate top layer 18 among first embodiment.Slide plate 50 comprises central layer 51,52 and 53.Central layer 51 and 52 is polyethylene foams.Central layer 51 and 52 thickness between 3 millimeters to 20 millimeters, preferably 12 millimeters.Central layer 51 and 52 density range be at 1.6 to 4 pounds every cubic feet, preferably 2.2 pounds every cubic feet.Sandwich layer 51 and 52 also can be polypropylene expanded, and density range is at 1.5 to 3.5 pounds every cubic feet, preferably 1.9 pounds every cubic feet.Central layer 53 is the solid polyethylene sheet between sandwich layer 51 and 52, and its effect is to make core harder.The thickness of central layer 53 between 0.4 millimeter to 5 millimeters, preferably 1 millimeter.To 0.98 gram, preferably every cubic centimetre 0.95 restrains the density range of central layer 53 at every cubic centimetre 0.91 gram.As an alternative, central layer 53 also can be used polypropylene material, and density range is about every cubic centimetre 0.86 to 0.94 gram, preferably every cubic centimetre 0.9 gram.
Fig. 7 is the 3rd embodiment of slide plate.In this embodiment, slide plate 60 has three layers, rather than four layers or five layers.Intermediate layer 61 is polyethylene foam sheets, its thickness between 2 millimeters to 12 millimeters, preferably 5 millimeters.Density range is at 4 to 8 pounds every cubic feet, preferably 7 pounds every cubic feet.As an alternative, intermediate layer 61 also can be with polypropylene expanded, and density range is at 2 to 6 pounds every cubic feet, preferably 3 pounds every cubic feet.
Top layer 65 is polyethylene films, thickness between 0.02 millimeter to 0.15 millimeter, preferably 0.07 millimeter.The density range of top layer 65 is at every cubic centimetre 0.91 to 0.98 gram, and preferably every cubic centimetre 0.95 restrains.As an alternative, top layer 65 can be used polypropylene film, and density range is every cubic centimetre 0.86 to 0.94 gram, preferably every cubic centimetre 0.90 gram.Bottom 62 has identical structure with the bottom 20 of the first embodiment middle slide plate 15.
The pressure roller 69 of slide plate 15 usefulness special constructions processes the groove and the lug boss 27 of parallel longitudinal extension on basal surface 22, simultaneously, bottom 20 is rolled on intermediate layer 19.Therefore, groove 26 machining that do not need grinding, rag or enter basal surface 22.When bottom 20 adds man-hour, just mold groove 26 on the basal surface 22, need be again with special step processing after basal surface or slide plate moulding.
As shown in Figure 9, carry from bottom roller 66 in intermediate layer 19, and when bottom roller 66 was left in intermediate layer 19, the thermoplastic polymer 70 of heat was extruded on the top surface in intermediate layer 19, then directly by pressure roller 68 and 69.As shown in figure 10, the axial cross section of pressure roller 69 is exaggerated, and which is provided with the lines that lug boss 71 alternately and groove 72 constitute.The width of lug boss 71 represents that with 73 the degree of depth represents that with 74 each lug boss is spaced from each other a segment distance 75.Lines is parallel to the turning cylinder of pressure roller 69, and perpendicular to the rotation direction of pressure roller 69.Therefore, when polymer 70 is extruded and pass through between the pressure roller 69 and 68, just impression or thermoforming are on thermoplastic polymer base coat 20 for the concave convex texture that the parallel lug boss that replaces and groove constitute, and meanwhile, bottom 20 is bonded on the intermediate layer 19 as planing surface.Shown in Figure 10 and 11, the lug boss 71 on the pressure roller 69 forms groove 26 on the outer surface 22 of bottom 20, and accordingly, the groove 72 on the pressure roller 69 forms lug boss 27 on the outer surface 22 of bottom 20.Therefore, the width 75 of the width 73 of the lug boss 71 on the pressure roller 69 and the degree of depth 74 and groove 72 corresponds respectively to the width 34 and the degree of depth 33 that groove 26 requires, and the width 35 of lug boss 27.
In case moulding, bottom 20 and intermediate layer 19 heat are rolled into one, are cut off the shape that is processed into requirement then.When using thermoplastic polyethylene or polypropylene expanded sandwich layer 16, remaining assembling rolls and can carry out easily by heat.The exposure in intermediate layer 19 can be bonded on the lower surface of sandwich layer 16 with hot rolling method easily.Then, the foaming plate that rolls is cut into the shape and the marginal texture of requirement.At last, top layer 18 hot pressing on the top surface of sandwich layer 16, then around the edge parcel of sandwich layer 16, intermediate layer 19 and bottom 20, are formed the lateral edges 37 of slide plate 15.
If the polyurethane foam core that uses thermosetting between polyurethane sandwich layer 16 and intermediate layer 19 is as extra play, as mentioned above, remaining installation is undertaken by pressing mold.Pressing mold has the shape of requirement and the profile of foaming plate, and upper die and lower die are arranged.Extra play is positioned on the inner surface of counterdie.Top layer 18 is positioned on the inner surface of patrix.In the die cavity between the Polyurethane resins injection upper and lower mould,, form the sandwich layer 16 of foaming at that loading mould cavity that reacts and foam.Along with die cavity filling polyurethane foam, three layers of shape with mould are consistent.The chemistry of polyurethane foam is sent out the inner surface and the foaming top layer 18 that contacts with hot polyurethane foam sandwich layer 16 that the heat that should produce has been melted the additional polymer foaming layer respectively, thus, forms good hot adhesion between sandwich layer and top layer.Molded foaming rolling layers is trimmed.Then, use a kind of hot easily rolling method, the exposure hot pressing in intermediate layer 19 in the bottom surface of extra play, is formed the foaming slide plate 15 that complete heat rolls.
For slide plate 50, bottom 55 uses the method moulding that bottom is identical with the intermediate layer moulding in the slide plate 15 with intermediate layer 54 and rolls.The central layer of slide plate 50 is with polymer-extruded and direct heat roller-compaction.The thermoplastic polymer of heat squeezes with a kind of polymer easily and penetrates device and extrude formation polymer sheet layer 53.Polymer foaming layer 51 and 52 is delivered to the top and the lower surface of the polymeric layer 53 of heat respectively.Three layer 51,52 and 53 heating bond together by a pair of rod that rolls, and form the sandwich layer that rolls of slide plate 50.Then, layer 52 exposure rolls on exposure on the intermediate layer 54 with hot rolling method heat easily.Then, the foaming plate 51/52/53/54 that rolls is cut into the slide plate shape and the marginal texture of requirement.At last, top layer 56 hot pressing are on the exposure of the top of layer 51, and then, the edge of the edge of core rolling layers 51/52/53 and layer 54 and 55 is wrapped, and forms the profile side of slide plate 50.
At slide plate 60, at first top layer 65 heat are rolled on sandwich layer 61 with hot rolling method.Then, the trough of belt bottom 20 of trough of belt bottom 62 usefulness and slide plate 15 and intermediate layer 19 are rolled identical method and are rolled on the exposure of sandwich layer 61, form the complete slide plate 60 that rolls.
Figure 12 represents the schematic diagram of another kind of rag pressure roller axial cross section.In this roller pattern, be provided with many groups lug boss 71 and groove 72 alternately.The slide plate bottom surface that can produce second embodiment shown in Figure 4 with this roller and identical method.Multiple different pattern pressure roller 69 can be as requested groove and the quantity and the size of lug boss replace use.
Can make multiple variation and distortion not leaving design scope of the present invention, these variations and distortion should be included within the claim of the present utility model.
Claims (11)
1, a kind of skateboarding comprises: a polymer top; The one polymer foaming core that expands; One has the thermoplastic polymer bottom of inner surface and outer surface; The one polymer foaming intermediate layer between described foaming core and described bottom of extruding, this intermediate layer heat rolls on the inner surface of described bottom, it is characterized in that: the outer surface of described bottom is straight and be provided with the jog that at least one group of longitudinal extension, parallel, the groove that replaces and lug boss constitute, described jog has a width, and described groove and lug boss are spaced on whole width.
2, skateboarding as claimed in claim 1 is characterized in that: per inch provides 10 to 80 grooves on the width of described jog.
3, skateboarding as claimed in claim 1 is characterized in that: per inch provides 45 grooves on the width of described jog.
4, skateboarding as claimed in claim 1 is characterized in that: the degree of depth of described groove is from 0.05 millimeter to 1 millimeter.
5, skateboarding as claimed in claim 1 is characterized in that: the degree of depth of described groove is 0.4 millimeter.
6, skateboarding as claimed in claim 1 is characterized in that: the width of described groove is uniform.
7, skateboarding as claimed in claim 1 is characterized in that: described foaming core comprises two polymer foaming skins; One polymer inner layer between two foamed coatings; The density of described polymer inner layer is greater than described two foamed coatings.
8, skateboarding as claimed in claim 1 is characterized in that: the density of described foaming core is less than the density in described intermediate layer.
9, skateboarding as claimed in claim 1 is characterized in that: described every groove has a width, on the described jog overall width of all grooves account for described jog width 20% to 80%.
10, skateboarding as claimed in claim 1 is characterized in that: the overall width of all grooves accounts for 50% of described jog width on the described jog.
11, skateboarding as claimed in claim 1 is characterized in that: the outer surface of described bottom is provided with the jog that three groups of longitudinal extensions, parallel, the groove that replaces and lug boss constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119805 CN2863207Y (en) | 2005-11-30 | 2005-11-30 | Sport skateboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119805 CN2863207Y (en) | 2005-11-30 | 2005-11-30 | Sport skateboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2863207Y true CN2863207Y (en) | 2007-01-31 |
Family
ID=37675659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119805 Expired - Lifetime CN2863207Y (en) | 2005-11-30 | 2005-11-30 | Sport skateboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2863207Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805926A (en) * | 2010-10-04 | 2012-12-05 | 布雷德利·D·佩德森 | Steerable and/or convertible sport board |
| CN103550925A (en) * | 2013-11-11 | 2014-02-05 | 周敏 | Skiing board |
-
2005
- 2005-11-30 CN CN 200520119805 patent/CN2863207Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102805926A (en) * | 2010-10-04 | 2012-12-05 | 布雷德利·D·佩德森 | Steerable and/or convertible sport board |
| CN103550925A (en) * | 2013-11-11 | 2014-02-05 | 周敏 | Skiing board |
| CN103550925B (en) * | 2013-11-11 | 2015-12-30 | 周敏 | Skis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070131 |
|
| EXPY | Termination of patent right or utility model |