JPH0334099Y2

JPH0334099Y2 -

Info

Publication number: JPH0334099Y2
Application number: JP1983145854U
Authority: JP
Priority date: 1983-09-22
Filing date: 1983-09-22
Publication date: 1991-07-19
Also published as: JPS6054413U

Description

【考案の詳細な説明】本考案はプラスチツク製傘骨に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a plastic umbrella rib.

従来の傘骨は、剛性の強いピアノ線では重くな
るので、金属材を断面Ｕ字形に加工してころび変
形を防止しつつその軽量化を達成している。しか
し、かかる傘骨においては、先ダボ、中ダボ等の
抱き加工が必要であり、工程が多くて煩雑である
欠点を有する。 Conventional umbrella ribs are made of highly rigid piano wire, which is heavy, so the metal material is processed into a U-shaped cross section to prevent rolling and deformation while reducing the weight. However, such umbrella ribs have the drawback that they require a process to hold the end dowels, middle dowels, etc., and are complicated and involve many steps.

これに対し、本考案においては傘骨をプラスチ
ツクにより製造することにより、従来の傘骨にお
ける付加構造を一体成形することを可能とし、こ
の際において傘骨の軽量化を達成しつつその変形
防止のための補強構造を提供すると共に折畳閉傘
時において傘骨が嵩張らないように工夫したもの
である。 In contrast, in the present invention, by manufacturing the umbrella rib from plastic, it is possible to integrally mold the additional structure on the conventional umbrella rib, and in this case, it is possible to reduce the weight of the umbrella rib and prevent its deformation. In addition to providing a reinforcing structure for the umbrella, the umbrella ribs are devised so that they do not become bulky when the umbrella is folded and closed.

以下本考案の一実施例について図面と共に説明
すれば、１は親骨、２は受骨、３は子骨であり、
それぞれ短繊維入りの強化プラスチツクにより形
成される。 An embodiment of the present invention will be described below with reference to the drawings. 1 is the main bone, 2 is the supporting bone, 3 is the coronal bone,
Each is made of reinforced plastic with short fibers.

親骨１において、上ロクロに対する連結部１
ａ、受骨２との連結部１ｂ及び子骨３との連結部
１ｃが一体に形成され、該連結部１ｂ，１ｃに対
して鳩目金具４によりそれぞれ受骨２と子骨３が
回動自在に設けられる。 At the main rib 1, the connection part 1 to the upper potter's wheel
a, the connecting portion 1b with the support bone 2 and the connecting portion 1c with the coronal bone 3 are integrally formed, and the support bone 2 and the coronal bone 3 can be freely rotated with respect to the connecting portions 1b, 1c by means of eyelet fittings 4; established in

親骨１の下面には連結部１ｂより連結部１ｃ方
向に向けて連続した収容溝１ｄが形成されてい
る。 A housing groove 1d is formed on the lower surface of the main rib 1 and is continuous from the connecting portion 1b toward the connecting portion 1c.

受骨２は連結部１ｂと摺動ロクロに対する連結
端部２ａ，２ｂを除いてその間は連続して断面Ｔ
字状に形成され、頭部２′により横方向の屈曲力
に対する剛性をもたせると共に脚部２″により上
下方向の屈曲力に対する剛性をもたせている。 The strut 2 has a continuous cross section T except for the connecting part 1b and the connecting ends 2a and 2b for the sliding potter's wheel.
The head portion 2' provides rigidity against bending forces in the lateral direction, and the leg portions 2'' provide rigidity against bending forces in the vertical direction.

上記構成において、閉傘状態においては受骨２
の脚部２″は親骨１の収容溝１ｄに収容され、頭
部２′は親骨１の下面に当接する。 In the above configuration, in the closed state, the supporter 2
The leg portion 2'' of is accommodated in the receiving groove 1d of the main rib 1, and the head 2' abuts against the lower surface of the main rib 1.

本考案は上記した如くに、プラスチツク材によ
り一体に形成して下方に軸方向に延長する収容溝
を有する親骨の中間部に対して、プラスチツク材
により一体に形成して軸方向に延長する頭部と脚
部により断面Ｔ字状に形成して受骨の連結端部を
枢着し、閉傘時において受骨の脚部が親骨の収容
溝に収容されるようにして成るものであるから、
傘骨における付加構造を一体成形することを可能
とし、受骨を軸方向に延長する頭部と脚部により
断面Ｔ字状に形成して軽量化しつつ頭部により横
方向の屈曲力に対する剛性をもたせると共に脚部
により上下方向の屈曲力に対する剛性をもたせる
ことができ、しかも折畳閉傘時において該脚部を
親骨内に吸収するので折畳閉傘形状を嵩張らない
ように構成することができる効果を有する。 As described above, the present invention provides a head part that is integrally formed of plastic material and extends in the axial direction, with respect to the middle part of the main rib that is integrally formed of plastic material and has a housing groove that extends downward in the axial direction. The connecting end of the bridge is pivotally connected to the bridge and the leg is formed into a T-shaped cross section, so that the leg of the bridge is accommodated in the accommodation groove of the main rib when the umbrella is closed.
It is possible to integrally mold the additional structure of the umbrella rib, and the head and legs that extend in the axial direction form the bridge into a T-shaped cross section, reducing weight while increasing the rigidity against lateral bending force by the head. At the same time, the legs can provide rigidity against vertical bending force, and since the legs are absorbed into the main rib when the umbrella is folded and closed, the shape of the folded umbrella can be constructed so as not to be bulky. have an effect.

また本考案においては、閉傘時において上記し
た如くに親骨と受骨が一体的に組み合わされてい
るので、閉傘時における傘骨の転び変形がなく、
傘骨全体の端部を中棒の周囲において真円状に配
列することができ、玉止め即ち集束係止環との係
合が極めて良好である。 In addition, in the present invention, since the main rib and the bridge are integrally combined as described above when the umbrella is closed, the umbrella rib does not fall and deform when the umbrella is closed.
The ends of the entire umbrella rib can be arranged in a perfect circle around the center rod, and the engagement with the ball stop or focusing locking ring is extremely good.

[Brief explanation of the drawing]

第１図は本考案にかかるプラスチツク製傘骨の
開傘状態の一部破断側面図、第２図は同上の折畳
み閉傘状態の側面図、第３図は第１図の−段
断面図である。１……親傘、１ｄ……収容溝、２……受骨、
２′……頭部、２″……脚部。 Fig. 1 is a partially cutaway side view of the plastic umbrella frame according to the present invention in the open state, Fig. 2 is a side view of the same as above in the folded and closed state, and Fig. 3 is a sectional view of the - step in Fig. 1. be. 1... Parent umbrella, 1d... Storage groove, 2... Bone,
2'...head, 2''...legs.

Claims

[Scope of utility model registration request]

The middle part of the rib has a housing groove that is integrally formed of plastic material and extends downward in the axial direction, and a T-shaped cross section is formed by the head and legs that are integrally formed of plastic material and extend in the axial direction. 1. An umbrella rib made of a plastic material, characterized in that connecting ends of struts formed in the ribs are pivotally connected, and the legs of the struts are accommodated in the accommodation grooves of the ribs when the umbrella is closed.