CN103263146B - 一种边缘被强化的吹塑面板及应用该面板的折叠桌 - Google Patents

一种边缘被强化的吹塑面板及应用该面板的折叠桌 Download PDF

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CN103263146B
CN103263146B CN201310195287.3A CN201310195287A CN103263146B CN 103263146 B CN103263146 B CN 103263146B CN 201310195287 A CN201310195287 A CN 201310195287A CN 103263146 B CN103263146 B CN 103263146B
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蒋一翔
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00Folding or stowable tables
    • A47B3/08Folding or stowable tables with legs pivoted to top or underframe
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00Details of tables or desks
    • A47B13/08Table tops; Rims therefor
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00Folding or stowable tables
    • A47B3/08Folding or stowable tables with legs pivoted to top or underframe
    • A47B3/091Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00Folding or stowable tables
    • A47B3/08Folding or stowable tables with legs pivoted to top or underframe
    • A47B2003/0821Folding or stowable tables with legs pivoted to top or underframe the leg holder being mounted to underside of the table top
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00Folding or stowable tables
    • A47B3/08Folding or stowable tables with legs pivoted to top or underframe
    • A47B2003/0827Folding or stowable tables with legs pivoted to top or underframe having means for holding U-shaped legs in storage position, i.e. parallel to the underside of the table top
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00Folding or stowable tables
    • A47B3/08Folding or stowable tables with legs pivoted to top or underframe
    • A47B3/091Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs
    • A47B3/0911Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs the struts being permanently connected to top and leg or underframe and leg
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0031Making articles having hollow walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • B29L2007/002Panels; Plates; Sheets

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Abstract

本发明公开了一种边缘被强化的吹塑面板,在面板的四周设有向下延伸的凸缘,其特征在于:凸缘为双层结构,凸缘外层呈直壁状,凸缘内层的上部与凸缘外层的上部之间呈中空状,凸缘内层的下部与凸缘外层的下部相粘连。本发明还公开了一种应用有上述面板的折叠桌。与现有技术相比,本发明的优点在于:首先,该中空吹塑面板的凸缘采用双层结构,且凸缘下部的内层与外层相粘连,从而显著提高面板周边容易破碎的部位的结构强度和耐冲击性,并且结构较为新颖;其次,通过设于面板背面的第一条形槽、第二条形槽和条形凹槽,使脚架安装较为方便、牢固,且面板和脚架在完全折收后能保持良好的平整度,进而使多张折叠桌在折收后更加容易叠放。

Description

一种边缘被强化的吹塑面板及应用该面板的折叠桌
技术领域
本发明涉及一种面板及应用有面板的折叠桌,尤其涉及一种边缘被强化的吹塑面板及应用该吹塑面板的折叠桌。
背景技术
吹塑成形制品由于具有中空结构而重量轻,此外,由于其材质、形状及结构的原因,具有刚性强、耐冲击性好、不易损坏等优点,近年来,吹塑成形制品在众多领域被广泛采用。例如,户外家具用品中有各种吹塑桌、吹塑椅、吹塑凳等。
现以吹塑桌为例,它通常是用一吹塑面板再配以可折叠的铁质支架做成,而吹塑面板的底部通常分布有众多无规则排列形状大小不一的凹陷的支撑碰点,以增加其强度。但受吹塑工艺的限制,面板往往还是存在有一些容易受损的潜在故障点,如凹陷的支撑碰点部位材料拉伸后厚度变薄,特别是面板的边缘(尤其是转角处)也偏薄偏软,因此这些都是较容易破裂的部位。为克服上述问题,人们往往通过增加面板厚度来增强面板的结构强度,但采用加厚的面板所带有的缺陷是使面板显得较为厚重,相应地,采用加厚面板的吹塑桌不仅较为笨重,而且也利于节省成本。并且,即使采用加厚的面板,如果对边缘结构不作改进,还是无法提高面板边缘的刚性和结构强度。
发明内容
本发明所要解决的第一个技术问题是针对上述现有技术现状,提供一种结构新颖、边缘具有足够刚性和强度的边缘被强化的吹塑面板。
本发明所要解决的第二个技术问题是针对上述现有技术现状,提供一种应用有既结构新颖又边缘具有足够刚性和强度的边缘被强化的吹塑面板的折叠桌。
本发明解决上述技术问题所采用的技术方案为:该边缘被强化的吹塑面板,在面板的四周设有向下延伸的凸缘,其特征在于:所述凸缘为双层结构,凸缘外层呈直壁状,凸缘内层的上部与凸缘外层的上部之间呈中空状,凸缘内层的下部与凸缘外层的下部相粘连,凸缘内层的下部向凸缘外层作台阶状弯折后再向下弯折,且向下弯折部分的凸缘内层与凸缘外层的下部相粘连。
优选地,所述凸缘下部内、外层粘连部分的高度占整个凸缘高度的1/5~1/4。这样,既保证了凸缘的结构强度,也便于纵梁进行安装固定。
为了提高吹塑面板的结构强度和减小面板的抗扭曲性,在面板的背面分布有众多凹陷的支撑碰点,且所述的支撑碰点呈纵横交错分布。
进一步优选,所述的支撑碰点呈条形,并在支撑碰点内设有两根加强筋,对应地,支撑碰点内设有三个接触点并与加强筋间隔排列。这样,不仅可以提高支撑碰点的结构强度,减小面板的扭曲性,而且还可以使接触点面积变小,防止面板表面出现疤痕,提高了面板表面的平整度。
为了提高面板转角处的结构强度,在所述面板背面的四个转角处分别设有一内侧边呈直线形、外侧边呈弧形的边角支撑碰点。优选地,边角支撑碰点内可以设有二根或二根以上斜向加强筋。
进一步优选,在面板背面的两相对侧各设有与凸缘相邻的第一条形槽,在两个第一条形槽的对应端之间设有第二条形槽,在所述第一条形槽和第二条形槽内的支撑碰点依次均匀排列或者纵横交错排列。第一条形槽和第二条形槽分别用来安装纵梁和横梁,第一条形槽和第二条形槽内的支撑碰点能进一步提高面板的刚性和结构强度。
为了便于与面板配套的折叠桌的脚架折放,在所述面板背面被第一条形槽和第二条形槽围合成的区域内成型有多个条形凹槽,在条形凹槽内的支撑碰点依次均匀排列或者纵横交错排列,与该吹塑面板配套使用的脚架折收后嵌入在所述的条形凹槽内。位于条形凹槽内的支撑碰点则进一步提高了面板的刚性和结构强度。
一种应用上述边缘被强化的吹塑面板的折叠桌,包括纵梁、横梁和脚架,所述的纵梁为两根,分别嵌入在所述的第一条形槽内并与凸缘内层的上部相固定,所述的横梁为两根,分别嵌入在所述的第二条形槽内且横梁的两端分别固定在所述的纵梁上,所述的脚架为可折收脚架并安装在两横梁上,脚架在折收状态下嵌入在所述的条形凹槽内。采用上述结构后,折叠桌的结构较为牢固,且折放较为方便。
安装在第一条形槽内的纵梁可以采用多种结构,优选地,所述的纵梁呈“╗”形,纵梁的上部嵌入在所述的第一条形槽内,纵梁的下部向外弯折部分坐落在凸缘内层的台阶上并同时与凸缘内层的下部侧向相碰。折叠桌在折放状态下,嵌入在第一条形槽内的纵梁可以有效提高凸缘的耐冲击性。
为了使折收后的折叠桌更容易叠放,所述纵梁的下底面与所述凸缘的下底面相齐平。
与现有技术相比,本发明的优点在于:首先,该中空吹塑面板的凸缘采用双层结构,且凸缘下部的内层与外层相粘连,从而显著提高面板周边容易破碎的部位的结构强度和耐冲击性,并且结构显得较为新颖;其次,通过设于面板背面的第一条形槽、第二条形槽和条形凹槽,使脚架安装较为方便、牢固,且面板和脚架在完全折收后能保持良好的平整度,进而使多张折叠桌在折收后更加容易叠放。
附图说明
图1为本发明实施例的面板的结构示意图;
图2为图1所示面板的平面示意图;
图3为图2中B向局部剖视放大图;
图4为图2中A部分的放大示意图;
图5为本发明实施例的折叠桌的结构示意图(脚架撑开状态);
图6为本发明实施例的折叠桌的结构示意图(脚架折叠状态);
图7为图6中C向局部剖视放大图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图1至图4所示,本实施例中的吹塑面板在背面分布有众多凹陷并呈纵横交错排列的支撑碰点2,支撑碰点2呈条形状,采用纵横交错排列是利用了交叉力学原理,有效地将一个方向上的外应力分解为多个方向上互相牵扯的力,从而增强面板本身的结构强度和抗扭曲度,并且,采用凹陷的支撑碰点2后,可以减小吹塑面板的壁厚,减轻面板的重量。特别针对超薄型(厚度<40MM)的板体,采用纵横交错的支撑碰点2后,可以大大加强其牢固度,使其不易变形。另外,为了提高接触碰点2的结构强度,一个支撑碰点2内一般可以设置两根加强筋21,相应地,支撑碰点2的接触点22为三个并与加强筋21间隔排列,从而减小接触点22面积,在面板正面不易产生疤痕,不仅可提高面板表面的平整度,也能减小面板的扭曲性。当然,根据支撑碰点2的具体排布情况,也可以在个别支撑碰点内只设置一根加强筋或者两根以上加强筋。
为了提高面板转角处的结构强度,在面板背面的四个转角处分别设有一个内侧边呈直线形、外侧边呈弧形的边角支撑碰点3,并且,为了进一步提高边角支撑碰点的结构强度,本实施例中,在每个边角支撑碰点3内均设有三根斜向加强筋31。
与常规的面板相类似,该吹塑面板四周向下延伸成凸缘1,由于吹塑面板周边是较为容易破损的部位,为确保其强度和耐冲击性,本实施例中,凸缘1采用双层结构,凸缘外层12呈直壁状,凸缘内层11的上部与凸缘外层12的上部之间呈中空状,凸缘内层11的下部与凸缘外层12的下部相粘连,具体地,凸缘内层11的下部向凸缘外层12作台阶状弯折后再向下弯折,且向下弯折部分的凸缘内层11与凸缘外层12的下部相粘连。较好地,位于凸缘下部的凸缘内层11与凸缘外层12相粘连部分的高度占整个凸缘高度的1/5~1/4,这样,既能保证凸缘1的结构强度,又便于纵梁进行安装固定。
在面板背面的两相对侧各设有与凸缘1相邻的第一条形槽4,在两个第一条形槽4的对应端之间设有第二条形槽5,在第一条形槽4和第二条形槽5内的支撑碰点2依次均匀排列或者纵横交错排列。在面板背面被第一条形槽4和第二条形槽5围合成的区域内成型有多个条形凹槽6,在条形凹槽6内的支撑碰点2依次均匀排列或者纵横交错排列,与该吹塑面板配套使用的脚架折收后嵌入在条形凹槽6内。
如图5至图7所示,本实施例中的应用有吹塑面板的折叠桌,包括纵梁7、横梁8和脚架9,其中,纵梁7为两根,分别嵌入在第一条形槽4内并与凸缘内层11的上部相固定,横梁8为两根,分别嵌入在第二条形槽5内且横梁8的两端分别固定在纵梁7上,脚架9为可折收脚架并安装在两横梁8上,脚架9在折收状态下嵌入在条形凹槽6内。可活动折收脚架与现有桌脚的脚架结构基本一致,在此不再赘述。脚架9折收后,面板及脚架在完全折收后能保持良好的平整度,从而使多张折叠桌在折收后更加容易叠放。此外,为了进一步提高凸缘1的耐冲击性,纵梁7呈“╗”形,纵梁7的上部嵌入在第一条形槽4内,纵梁7的下部向外弯折部分坐落在凸缘内层的台阶上并同时与凸缘内层的下部侧向相碰,且纵梁7的下底面与凸缘1的下底面相齐平。
以上所述仅为本发明的优选实施方式,应当指出,对于本领域普通技术人员而言,在不脱离本发明的原理前提下,可以对本发明进行多种改型或改进,譬如支撑碰点的形状并不局限于本实施例给出的结构,这些均被视为本发明的保护范围之内。

Claims (10)

1.一种边缘被强化的吹塑面板,在面板的四周设有向下延伸的凸缘(1),其特征在于:所述凸缘(1)为双层结构,凸缘外层(12)呈直壁状,凸缘内层(11)的上部与凸缘外层(12)的上部之间呈中空状,凸缘内层(11)的下部与凸缘外层(12)的下部相粘连,凸缘内层(11)的下部向凸缘外层(12)作台阶状弯折后再向下弯折,且向下弯折部分的凸缘内层(11)与凸缘外层(12)的下部相粘连。
2.根据权利要求1所述的边缘被强化的吹塑面板,其特征在于:所述凸缘(1)下部内、外层粘连部分的高度占整个凸缘(1)高度的1/5~1/4。
3.根据权利要求1所述的边缘被强化的吹塑面板,其特征在于:在面板的背面分布有众多凹陷的支撑碰点(2),且所述的支撑碰点(2)呈纵横交错分布。
4.根据权利要求3所述的边缘被强化的吹塑面板,其特征在于:所述的支撑碰点(2)呈条形,并在支撑碰点(2)内设有两根加强筋(21),对应地,支撑碰点(2)内设有三个接触点(22)并与加强筋(21)间隔排列。
5.根据权利要求1所述的边缘被强化的吹塑面板,其特征在于:在所述面板背面的四个转角处分别设有一内侧边呈直线形、外侧边呈弧形的边角支撑碰点(3)。
6.根据权利要求1至5中任一权利要求所述的边缘被强化的吹塑面板,其特征在于:在面板背面的两相对侧各设有与凸缘(1)相邻的第一条形槽(4),在两个第一条形槽(4)的对应端之间设有第二条形槽(5),在所述第一条形槽(4)和第二条形槽(5)内的支撑碰点(2)依次均匀排列或者纵横交错排列。
7.根据权利要求6所述的边缘被强化的吹塑面板,其特征在于:在所述面板背面被第一条形槽(4)和第二条形槽(5)围合成的区域内成型有多个条形凹槽(6),在条形凹槽(6)内的支撑碰点(2)依次均匀排列或者纵横交错排列,与该吹塑面板配套使用的脚架折收后嵌入在所述的条形凹槽(6)内。
8.一种应用权利要求7所述的吹塑面板的折叠桌,包括纵梁(7)、横梁(8)和脚架(9),所述的纵梁(7)为两根,分别嵌入在所述的第一条形槽(4)内并与凸缘内层(11)的上部相固定,所述的横梁(8)为两根,分别嵌入在所述的第二条形槽(5)内且横梁(8)的两端分别固定在所述的纵梁(7)上,所述的脚架(9)为可折收脚架并安装在两横梁(8)上,脚架(9)在折收状态下嵌入在所述的条形凹槽(6)内。
9.根据权利要求8所述的折叠桌,其特征在于:所述的纵梁(7)呈形,纵梁(7)的上部嵌入在所述的第一条形槽(4)内,纵梁(7)的下部向外弯折部分坐落在凸缘内层(11)的台阶上并同时与凸缘内层(11)的下部侧向相碰。
10.根据权利要求9所述的折叠桌,其特征在于:所述纵梁(7)的下底面与所述凸缘(1)的下底面相齐平。
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