JP3051837B1 - Bone assembly for folding umbrella - Google Patents

Abstract

A bone assembly for a folding umbrella suitable for making a small, pocketable folding umbrella and having a very small folding volume is provided. SOLUTION: When the bone assembly 2 is folded to close the umbrella, the inner hook end 251 of the intermediate connecting bone 25, the flat thin end 212 of the top bone 21, and the flat thin portion 213 are connected to the expanded bone 22. Fits snugly in a U-shaped groove. This minimizes the folding volume, which is suitable for making a folding umbrella that fits in a narrow pocket.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to an improved bone assembly for a folding umbrella.

[0002]

BACKGROUND OF THE INVENTION A conventional folding umbrella bone assembly includes a top bone 21 and an expanded bone 22 as shown in FIGS.
, An intermediate bone 23, an intermediate connecting bone 25, and an auxiliary folding spring 5, and the top bone 21 is rotatably attached to an upper notch 3 fixed to the top of the central shaft 1. It has. The expanded bone 22 has an inner end 221 that is rotatably attached to the lower runner 4 that is slidably held on the central shaft 1. The lower runner 4 is engageable with a spring catch 15 resiliently retained on the central shaft 1 to position the umbrella bone assembly in the open position shown in FIG. The intermediate bone 23 includes an inner end, an outer end, and a tip bone 26 rotatably connected to the outer end. Intermediate connecting bone 25
Are an outer end rotatably connected to the intermediate bone 23 via a joint 24 attached to an inner end of the intermediate bone 23, and an inner end rotatably connected to an outer part of the top bone 21. Part 251
And The auxiliary folding spring 5 is used to
2 and the intermediate bone 23, helping each bone of the bone assembly 2 to be folded when closing the umbrella.

The central shaft 1 includes a lower tube 11 fixed to a grip 12, an intermediate tube 13 nestable with the lower tube 11, and an upper tube nestable with the intermediate tube 13. 14 is included.

[0004] As shown in FIGS. 7 and 8, the top bone 21 of such a conventional umbrella bone assembly has an outermost end 2.
The outermost end 212 is rotatably connected to a pair of projections 220 formed on the expanded bone 22 via pivots, rivets, and small holes 220a. Expanded bone 22
Is projected upward from the side wall of the expanded bone 22 and occupies a certain volume that would affect the folded volume when the umbrella is closed.

The top bone 21 has a U-shaped cross section. In order to rotatably connect the inner end portion 251 of the intermediate connecting bone 25, a pivot or rivet 213a fixed transversely is provided on an outer portion of the top bone 21. Since the pivot 213a has a considerable length, it is difficult to make the U-shaped width of the top bone 21 very small from the viewpoint of attaching the pivot 213a to the top bone 21. Therefore, as shown in FIGS. 9 and 10, the pivot 213a and the top bone 2
1 is an obstacle to the side wall of the expanded bone 22, and the expanded bone 2
The top bone 21 cannot be completely embedded or accommodated in the U-shaped groove formed with the recess in FIG. Therefore, the folded volume of the bone assembly 2 when the umbrella is closed cannot be made very small.

[0006] The folding umbrella is constructed by incorporating 6 to 8 sets of the bone assembly 2 having the above configuration. Therefore, the total volume of the umbrella closed by folding each bone assembly 2 cannot be made very small.

[0007] The inventor of the present application has identified drawbacks in prior art bone assemblies for folding umbrellas, and can be used to make small, pocketable folding umbrellas, which can greatly reduce the folding volume of the bone assembly. Was invented.

It is an object of the present invention to provide a bone assembly for a folding umbrella which is suitable for making a folding umbrella which is small and fits in a pocket, and which can have a very small folding volume.

[0009]

SUMMARY OF THE INVENTION The above object is achieved by a folding umbrella bone assembly according to the invention having the following arrangement.

The folding umbrella bone assembly has at least one top bone pivotally mounted on an upper notch secured to the top of the central shaft, and is rotatably connected to the top bone. An extended bone rotatably attached to the runner slidably held; an intermediate connecting bone rotatably connected to the top bone; and a tip bone rotatably connected to the intermediate bone. A flat, thin end formed in an elongated rod and rotatably connected to a pair of narrowed projections pressed toward each other from two side walls of a U-shaped groove of the expanded bone; A fold that has an outermost end formed as a portion and an outer portion formed as a flat, thin portion for pivotally connecting the inner end of the intermediate connecting bone, and that is thin and small. Umbrella to fit to make umbrella Flip a rib assembly for umbrella folding, characterized in that may minimize the folding volume of the case was.

[0011]

According to the present invention, an upper notch (3) fixed to the top of a central shaft (1) is provided.
A lower runner (4) slidably held on the central shaft (1), a top bone (21) having an inner end (211) rotatably mounted on the upper notch (3), Inner end (2
An extended bone (22) rotatably connected to the lower runner (4) and an outermost end (212) of the top bone (21); and an extended bone (22). 2
2) a joint (24) rotatably connected to the outermost end (222), an inner end (231) attached to the joint (24), and an outer end (232) having a tip bone (232). 26), and a rotation hole (21) formed through the top bone (21).
An intermediate connecting bone (25) having an inner hook end (251) rotatably connected to the joint (24) and an outer end (252) rotatably connected to the joint (24); A collapsible umbrella bone assembly (2) having an auxiliary folding spring (5) held between said (22) and said intermediate bone (23), wherein said expanded bone (22) is longitudinally concave; The top bone (21) is formed of a flat rod having a wall thickness smaller than a distance "D" defined between two side walls of the U-shaped groove. The outermost end portion (212) has a flat shape and the portion (21) where the pivot hole (214) is formed.
3) has a flat shape, and the inner hook end (251) of the intermediate connecting bone (25) has a width smaller than the distance "D" between two side walls of the U-shaped groove. Then, the two side walls of the U-shaped groove in the expanded bone (22) are pressed toward each other toward the center, and a pair of projections (223, 22) having a width of a distance "d" smaller than the distance "D" is used.
3) is formed, and the pair of protrusions (223, 223) are
When pivotally connecting the outermost end (212) of the top bone (21) via a pivot (224) mounted across the pair of projections (223, 223), the umbrella is closed. When the bone assembly (2) is folded, the inner hook end (251) of the intermediate connecting bone (25), the outermost end (212) and the portion (213) of the top bone (21) are A bone assembly for a collapsible umbrella, the bone assembly being adapted to be received in the U-shaped groove of the expandable bone (22).

[0012]

[0013]

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view showing an opened state of the folding umbrella bone assembly according to the present invention, FIG. 2 is a perspective view showing a main part of the folding umbrella bone assembly shown in FIG. 1, and FIG.
FIG. 4 is an exploded perspective view of the element shown in FIG. 2, FIG. 4 is an explanatory view showing the folded umbrella bone assembly shown in FIG. 1 in a folded state, and FIG. 5 is a folded bone shown in FIG. FIG. 2 is a partially enlarged view showing a main part of the assembly.

As shown in FIGS. 1 to 5, a bone assembly for a folding umbrella according to the present invention comprises a top bone 21 and an expanded bone 2.
2, an intermediate bone 23, an intermediate connecting bone 25, and an auxiliary folding spring 5, and the top bone 21 is rotatably attached to an upper notch 3 fixed to the top of the central shaft 1. 211 is provided. The expanded bone 22 has an inner end 221 that is rotatably attached to the lower runner 4 that is slidably held on the central shaft 1. The intermediate bone 23 has an inner end 231 fixed to the joint 24 and an outer end 232 rotatably connected to the tip bone 26. The intermediate connecting bone 25 has an inner end 251 rotatably connected to the top bone 21 and an outer end 252 rotatably connected to an inner pivot 242 of the joint 24. The outer pivot 241 of the joint 24 is rotatably connected to the outermost end 222 of the expanded bone 22. The auxiliary folding spring 5 is held between the expanded bone 22 and the intermediate bone 23.

The central shaft 1 has a lower tube 11 to which a grip 12 is fixed at a lower portion, an intermediate tube 13 which can be nested into the lower tube 11, and a telescopically fittable into the intermediate tube 13. It includes an upper tube 14 and a spring catch 15 which is elastically held to hold the runner 4 when the umbrella is opened as shown in FIG.

The auxiliary folding spring 5 has an outer end 51
And an inner end 53, and the outer end 5 of the spring 5.
1 includes a spring coil 52 fixed to a pleated edge portion 233 formed on the inner side of the intermediate bone 23.
Is slidably held. Also, the inner end 53
Is adjacent to the outermost end 222 of the expanded bone 22,
2 is attached to the outer portion 225. The auxiliary folding spring 5 stores the spring energy that will eventually be released when the bone assembly 2 is folded deeper as it approaches the central axis 1.
When the user performs the operation of folding from the open state (FIG. 1) to the folded state (FIG. 4), it is temporarily bent or bent.

Thus, each bone is retracted as close to the central axis 1 as possible, and the folding operation of each bone is facilitated.

The configuration specific to the bone assembly 2 of the present invention will be described in detail below.

The top bone 21 is formed as a thin, elongated rod and has an outermost end formed as a flat, thin end 212. The outermost flat, thin end 212 is, as shown in FIGS.
Bone 22 formed in the middle part of the body and having a U-shaped cross section
A pair of narrow projections 223 are formed by pressing a pair of narrow projections 223 from two side walls of a U-shaped groove having a recess formed in the longitudinal direction toward the center or the center.
Are pivotally connected via a pivot 224 mounted across the. The pivot 224 is a rivet or a small hole.

The top bone 21 is provided adjacent the outermost end 212 and has an outer portion that is directly pressed and flattened to form a flat, thin portion 213. The flat and thin portion 213 that forms the outer portion has the shape shown in FIG.
As shown in FIG. 3 and FIG. 3, a pivot hole (rotating hole) 214 for rotatably connecting the hook end 251 formed at the inner end of the intermediate connecting bone 25 is formed therethrough.

In the bone assembly 2 having such a configuration,
As shown in FIGS. 4 and 5, as soon as the bone assembly 2 is folded to close the umbrella, the flat thin end 212 and flat thin portion 213 of the top bone 21
Similar to the hook end 251 at the inner end of 5, it will fit snugly into the U-shaped groove of the expanded bone 22. Thus, the folding volume of the bone assembly 2 can be minimized to accommodate the creation of a thin, miniature, compact umbrella that fits in a compact pocket.

As shown in FIG.
The two narrow protrusions 223 are pressed inwardly toward each other to define a narrow distance “d” between the protrusions 223.
Pressed down or tightened. This narrow distance "d"
Is smaller than the distance “D” defined between the two side walls in the U-shaped groove of the expanded bone 22.

The flat thin part 21 of the top bone 21
3 and the flat, thin ends 212 are each pressed flat to a thickness less than the thickness of the rods that make up the top bone 21.

Flat and thin portion 21 of top bone 21
3, 212 and narrow projections 22 in the expanded bone 22
3 is pressed flat to minimize the folding volume of the bone assembly 2 when the umbrella is closed. Thus, according to the present invention, a bone assembly can be provided which is particularly suitable for making a folding umbrella or "flat" umbrella in a small, small and compact pocket.

It should be noted that the present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit and scope of the present invention. For example, each bone of the bone assembly 2 can be modified for a four-fold or multi-fold type folding umbrella. Also, the central shaft 1 can be modified to include a plurality of tubes that can be nested into one another.

[0028]

According to the present invention as described above, according to the present invention can provide a bone assembly for umbrella folding may very small folding <br/> see volume.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which a folding umbrella bone assembly according to the present invention is opened.

FIG. 2 is a perspective view showing a main part of the folding umbrella bone assembly shown in FIG. 1;

FIG. 3 is an exploded perspective view of the elements shown in FIG. 2;

FIG. 4 is an explanatory view showing the folded umbrella bone assembly shown in FIG. 1 in a folded state.

FIG. 5 is a partially enlarged view showing a main part of the folded bone assembly shown in FIG. 4;

FIG. 6 is an explanatory view showing a conventional folding umbrella bone assembly in an opened state.

FIG. 7 is a perspective view showing a main part of the folding umbrella bone assembly shown in FIG. 6;

8 is an exploded perspective view of the elements shown in FIG.

9 is an explanatory view showing the folded umbrella bone assembly shown in FIG. 6 in a folded state.

FIG. 10 is a partially enlarged view showing a main part of the folded bone assembly shown in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Central axis 2 ... Bone assembly 3 ... Upper notch 4 ... Lower runner 5 ... Auxiliary folding spring 21 ... Top bone 22 ... Expanded bone 23 ... Intermediate bone 24 ... Joint 25 ... Intermediate connecting bone 26 ... Tip bone 212 ... Outermost end Part, flat thin end 213 flat thin part 214 pivot hole (rotating hole) 223 pair of projections 224 pivot 251 inner hook end d distance between projections 223 D ... U in expanded bone 22 Distance between two side walls of the groove

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A45B 1/00-27/02

Claims (1)

(57) [Claims] 1. An upper notch (3) fixed to the top of a central shaft (1), a lower runner (4) slidably held on said central shaft (1), and an inner end (211). A top bone (21) rotatably attached to the upper notch (3), and an inner end (221) rotatably attached to the lower runner (4) and a top bone (21). Outer end (2
An expanded bone (22) rotatably connected to the inner bone (22); a joint (24) rotatably connected to an outermost end (222) of the expanded bone (22); and an inner end (231). ) Is attached to the joint (24) and formed through the intermediate bone (23) whose outer end (232) is rotatably connected to the tip bone (26) and the top bone (21). Rotating hole (21
An intermediate connecting bone (25) having an inner hook end (251) rotatably connected to the joint (4) and an outer end (252) rotatably connected to the joint (24); A folding umbrella bone assembly (2) having an auxiliary folding spring (5) held between said (22) and said intermediate bone (23), wherein said expanded bone (22) is longitudinally concave. The top bone (21) comprises a flat rod having a wall thickness smaller than a distance "D" defined between two side walls of the U-shaped groove. The outermost end (212) has a flat shape, and the portion (213) where the pivot hole (214) is formed has a flat shape; and the inner hook end of the intermediate connecting bone (25). Department (25
1) has a width smaller than the distance “D” between the two side walls of the U-shaped groove, and the two side walls of the U-shaped groove in the expanded bone (22) are oriented toward each other toward the center. Pressed to form a pair of projections (223, 2
23), and a pivot (22) attached to the pair of projections (223, 223) across the pair of projections (223, 223).
4), the outermost end (212) of the top bone (21) is rotatably connected, and when the umbrella assembly (2) is folded when closing the umbrella, the intermediate connecting bone ( 25) said inner hook end (25
1) the outermost end (2) of the top bone (21);
12) and the portion (213) are connected to the expanded bone (2).
The bone assembly for a folding umbrella according to 2), wherein the bone assembly is received in the U-shaped groove.