JP2945367B1 - Self-opening umbrella having an umbrella bone assembly formed of lightweight grooved bone and reinforced elastic bone - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To have appropriate elasticity and rigidity while being lightweight.
Provided is an automatic opening umbrella having a slim structure and firmly fixing a top cap member and a tip member. SOLUTION: It has a U-shaped cross section or a similar shape,
Top bone 1 made of lightweight material including aluminum alloy
And an outer bone 2 connected to an outer portion 11 of a top bone 1 having a circular cross section or a similar shape and made of a composite material or a plastic material having a predetermined good elasticity and mechanical strength, and a central shaft 5. Middle runner 5 to cover
A coil spring 55 held between the lower runner 53 and the lower runner 53 and having a flat cross-sectional shape with a spring ring having a rectangular cross-section for forming a slim umbrella shaft. This is an automatic open umbrella comprising a top cap member 56 having a threaded portion to be screwed to the upper end and a plurality of ball chips 3 firmly fixed to the tapered end of each outer bone 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a self-opening umbrella having an umbrella bone assembly formed of lightweight, grooved bone and reinforced, elastic bone.

[0002]

2. Description of the Related Art Generally, a self-opening umbrella includes a plurality of top bones radially provided near the top of a central shaft, and the top bone and the central shaft are opened and closed with respect to the central shaft. And an expanded bone provided therebetween, and a cloth is attached so as to cover the top bone. The conventional automatic open umbrella is provided with a top bone having a U-shaped cross section for rotatably connecting to the expanded bone.

[0003] Since the top bone having a U-shaped cross section is generally made of iron material, the weight of the umbrella increases and it is inconvenient to carry. In addition, there are some which are made of an iron material having an annular or “O” cross section, but are also heavy and inconvenient to carry.

[0004] If the umbrella bone is made of a lightweight material such as aluminum material, the weight of the umbrella can be reduced and it is easy to carry.
It has the disadvantage of lacking elasticity and having no resistance to deformation, twisting or bending of bone. On the other hand, the conventional automatic opening umbrella uses a coil spring having a spring ring having a circular cross section. It is expected to be flat to minimize dimensions.

Further, the conventional automatic opening umbrella has a top cap fixed to the top of the central shaft with an adhesive, and this top cap easily falls off when rubbing on the ground.

Further, the conventional automatic opening umbrella is provided with a ball tip at the end of the umbrella bone, and the ball tip is put on the outermost end of each top bone without firmly fixing it. For this reason, the ball chip easily falls off and is lost.

[0007]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the prior art self-opening umbrellas, the present inventors have disclosed an automatic opening umbrella having an umbrella bone assembly formed of lightweight, grooved bone and elastic bone. It was to provide.

An object of the present invention exhibits a U-shaped cross section or a similar shape, and aluminum alloy or Ranaru top rib,
The outer bone connected to the outer portion of the top bone made of a composite material or a plastic material having a circular cross section or a similar shape, having a predetermined good elasticity and having a predetermined good mechanical strength, and a central shaft. A coil spring , which is held between the middle runner and the lower runner so as to cover and has a spring ring having a rectangular cross-section of a wire for forming a slim umbrella shaft and having a flat cross-sectional shape. <br/> has, thereby yet lightweight have appropriate elasticity and rigidity to provide an automatic opening umbrella slim structure.

[0009]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The invention is pivotally connected to the upper notch of the central shaft,
U-shaped or similar in cross section
Is more formed on the gold, and at least one top rib groove concave is formed in the longitudinal direction is produced by the mechanical treatment, cross
At least one outer bone having a circular or similar shape and fixed to the outer part of the top bone, and a connection between the top bone and the outer bone of the middle runner and the top bone slidably supported on the central shaft. An expanded bone rotatably connected to the vicinity of the portion; and an auxiliary expanded bone rotatably connected between the expanded bone and a lower runner slidably supported by the central shaft. Having an enhanced umbrella bone assembly with
The outer bone has a predetermined good mechanical strength and a predetermined good elasticity to resist bending, deformation or torsion to reinforce the top bone to form a light and elastic umbrella assembly. A composite material or a plastic material selected from the group consisting of carbon fiber, glass fiber reinforced plastic, nylon, inorganic fiber reinforced composite material, and engineering plastic having, and held between the middle runner and the lower runner. Further comprising a coil spring used for opening the umbrella provided with a spring ring having a rectangular cross-section of a wire for minimizing a dimension perpendicular to the central axis , wherein the top bone includes:
A bifurcated branch for covering the inside of the outer bone
A limping leg and an outer portion of the outer bone
From the top bone side, to firmly connect the inner part
Formed by pressing towards the inner part of the outer bone
And a plurality of pointed portions .

[0010]

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIGS. 1 to 8 show Embodiment 1 of the present invention. The automatic opening / closing umbrella of Embodiment 1 is rotatably connected to an upper notch 51 on an upper portion of a central shaft 5. At least one top bone 1 having a U-shaped or similar cross section, an outer bone 2 having a circular or similar cross section connected to the top bone 1, and a central shaft 5 slidably supported by the central shaft 5. The middle runner 52 and the top bone 1 of the top bone 1
And an extended bone 4 rotatably connected to a vicinity of a joint between the outer bone 2 and a lower runner 53 slidably supported by the extended bone 4 and the central shaft 5. And an auxiliary diastolic bone 4a connected thereto. Further, this automatic opening umbrella is provided with a ball tip 3 as a tip member connected to the tip of the outer bone 2 and an umbrella opening that is disposed so as to cover the central shaft 5 and is held between the middle runner 52 and the lower runner 53. A coil spring 55 having a flat cross-sectional shape (cross-section of material), a top cap member 56 firmly fixed to the top of the central shaft 5, and an umbrella attached to cover the top bone 1 and the outer bone 2 And a cloth 6. The present invention is not particularly limited to this, and can be modified and applied to an umbrella that can be folded multiple times, such as folding an umbrella twice or three times.

The top bone 1 is made of a lightweight material including an aluminum alloy, a titanium alloy or another lightweight metal material, and is subjected to a suitable mechanical treatment, for example, extrusion, pressing, compression or the like, to thereby form a longitudinal direction. A U-shaped groove is formed in the groove.

The outer bone 2 has a predetermined characteristic such as good mechanical strength reinforced so as to resist bending, deformation or torsion, and various composite materials or plastics having a predetermined good elasticity. Made of material. The material for forming the outer bone 2 can be selected, for example, from the group consisting of carbon fiber, glass fiber reinforced plastic, nylon, inorganic fiber reinforced composite material, and another reinforced composite material such as elastomer or engineering plastic.

The top bone 1 has an outer portion 11 which is bifurcated to form an inner portion 21 of the outer bone 2.
Outermost end 111 serving as a crimping lugs for covering (including surrounding or pressing)
It has. Further, the outer portion 11 is pressed from the side of the top bone 1 toward the inner portion 21 of the outer bone 2 in order to firmly connect the inner portion 21 of the outer bone 2 to the outer portion 11 of the top bone 1. It has a plurality of pointed portions, teeth or projections 112 thus formed.

The outer bone 2 has an outer end 22 having a tapered end 221 connected to the ball tip 3. The ball tip 3 is formed of the same composite material or plastic material as the material used for the outer bone 2, or another material. As shown in FIGS. 2, 7 and 8, a tube hole 31 is formed in the ball tip 3 to firmly connect the ball tip 3 to each tapered end portion 221. End 221
Is inserted into the tube hole 31 of the ball chip 3,
It is strongly gripped and engaged therein.

As shown in FIG. 1 to FIG. 3, the outer portion 11 of the top bone 1 is pivoted by an outer bone portion 41 of the expanded bone 4.
And a pair of protruding legs 110 rotatably connected to each other. Further, the inner end 13 of the top bone 1 is rotatably connected to an upper notch 51 provided above the central shaft 5. The inner bone portion 42 of the expanded bone 4 is rotatably connected to a middle runner 52 slidably supported on the central shaft 5, and the expanded bone 4 is connected to the middle runner 52 and the lower runner 53. It has an auxiliary expandable bone 4a that is rotatably connected between the auxiliary expandable bones 4a. Thereby, when the umbrella is opened, the runner 53 is engaged with the catcher 54 formed on the central shaft 5 and stopped, while the umbrella cloth 6 is, as shown in FIG.
It is extended by an umbrella assembly with a top bone 1 and an outer bone 2. Each protruding leg 110 is
The innermost end 211 of the outer bone 2 is tapered so as to become thinner toward the middle of the top bone 1 so as to form a reinforcing wing 113 between the center 0 and the middle of the top bone 1. It has a bottom extension 114 formed by bending from a reinforcing wing 113 located at the bottom of the top bone 1 to cover and limit.

As shown in FIGS. 4 and 1, the coil spring 55 having a flat cross section held between the middle runner 52 and the lower runner 53 has a rectangular shape in order to minimize the width of the coil spring 55. It has a spring ring having a cross section 551 as shape. This is because, in order to make the slim structure of the present invention, the rectangular cross section of the spring ring can have a smaller width dimension than the circular cross section of the conventional spring ring. In this specification, a spring ring refers to a portion of a coil spring that is wound in a loop shape, and a width dimension refers to a dimension of (spring outer diameter−spring inner diameter) / 2.

The top cap member 56 (see FIGS. 5 and 6)
Reference) includes an adapter 561 made of plastic such as, for example, polyvinyl chloride (PVC). This adapter 5
Reference numeral 61 denotes a male screw portion 561 formed at the bottom of the adapter 561 for fastening to the female screw hole 50 formed at the top end of the central shaft 5, and a female screw opening 563 formed at the top surface of the adapter 561. And The top cap member 56 is formed of a plug 5 made of metal such as copper.
64 inclusive. The plug 564 has a screw portion 565 formed at the bottom of the plug 564, and is screwed into the female screw opening 563 of the adapter 561. Thereby, the top cap member 56 can be firmly fixed to the top of the central shaft 5, and it is possible to prevent the top cap member 56 from falling off or separating from the central shaft 5.

(Embodiment 2) FIG. 9 is a perspective view of an umbrella bone assembly according to Embodiment 2 of the present invention. Note that members having the same functions as those of the above embodiment are denoted by the same reference numerals,
The description is omitted (the same applies to the following embodiments).

As shown in FIG. 9, in this embodiment,
The outer part 11 of the top bone 1 is formed with a pair of crimping legs 111 for covering the inner part 21 of the outer bone 2, and the outer part 11 of the top bone 1 is pivoted. 12, it is rotatably connected to the expanded bone 4.

(Embodiment 3) FIG. 10 is a perspective view of an umbrella assembly according to Embodiment 3 of the present invention.

As shown in FIG. 10, in this embodiment, the outer portion 11 of the top bone 1 is formed with a pair of projecting legs 111 pivotally connected to the expanded bone 4 by a pivot 12. Further, it is provided with two pairs of crimping legs 112 and 113 provided on the opposite sides of the protruding legs 111 so as to cover the inner portions 21 of the outer bone 2 respectively.

(Embodiment 4) FIG. 11 is a perspective view of an umbrella bone assembly according to Embodiment 4 of the present invention, and FIG. 12 is a perspective view of a connecting member shown in FIG.

As shown in FIGS. 11 and 12, in this embodiment, the top bone 1 covers the inner part 21 of the outer bone 2 (including, for example, “surrounding”) and the outer part 11 and the top bone. 1 and a connecting member 10 disposed around a joint between the outer bone 2 and the outer bone 2. This connecting member 10 is a pivot 1
2 and a pair of protruding legs 101 for rotatably connecting the outer bone portion 41 of the expanded bone 4 and the outer portion 11 of the top bone 1
And two pairs of crimping legs 102, 103 provided on opposite sides of the protruding leg 101 so that the inner portion 21 of the outer bone 2 is covered by the outer portion 11 of the top bone 1.
The connecting member 10, the outer bone 2 and the top bone 1 are firmly connected together so that the connecting member 10 and the top bone 1
And a plurality of pointed portions, teeth or projections (not shown) formed by pressing inward toward the outer portion 11 and the inner portion 21 of the outer bone 2.

(Embodiment 5) FIG. 13 is a perspective view of an umbrella bone assembly according to Embodiment 5 of the present invention, and FIG. 14 is a perspective view of a connecting member shown in FIG.

As shown in FIGS. 13 and 14, in this embodiment, the outer portion 11 of the top bone 1 has the inner end 21 of the outer bone 2 covered in the outer portion 11 of the top bone 1. Later, this part is covered by the connecting member 10. The connecting member 10 and the top bone 1 are connected so that the connecting member 10 is connected to the center insertion hole 100 through which the outer portion 11 of the top bone 1 is inserted and the connecting member 10 to the top bone 1 and the outer bone 2.
(For example, including a nail) 105 which is inserted so as to cross the outer part 11 and the inner part 21 of the outer bone 2.
And a pair of projecting legs 101 projecting substantially downward from a connecting member 10 for pivotally connecting to the expanded bone 4 by a pivot 12. However, this connecting member 10
The connection between the top bone 1 and the outer bone 2 is not necessarily limited to only the method described above,
Other connection methods, such as adhesives, can be selected.

It should be noted that the present invention is not limited to only the above-described embodiment, but can be variously modified without departing from the scope of the claims.

[0033]

As described above, the present invention has the following advantageous effects over the conventional automatic opening umbrella.

1. The umbrella bone assembly of the self-opening umbrella according to the present invention, despite being lightweight and convenient to carry,
It is possible to have good mechanical properties to resist deformation, bending and torsion of the bone.

2. By making the cross-sectional shape of the coil spring flat, the dimension perpendicular to the axis can be minimized.
A slim umbrella can be constructed.

[0036]

[0037]

[Brief description of the drawings]

FIG. 1 is a diagram showing an umbrella in an open state according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the umbrella in a folded state according to the first embodiment.

FIG. 3 is a perspective view of the umbrella bone assembly of the first embodiment.

FIG. 4 is a view showing a coil spring having a flat cross section according to the first embodiment.

FIG. 5 is a view showing a top cap member of the first embodiment.

6 is a partial sectional view of the top cap member shown in FIG.

FIG. 7 is a diagram showing a ball tip that can be fixed to the outer bone according to the first embodiment.

FIG. 8 is a view showing the ball chip shown in FIG. 7 in a state where it is fixed to the outer bone.

FIG. 9 is a perspective view of an umbrella bone assembly according to Embodiment 2 of the present invention.

FIG. 10 is a perspective view of an umbrella bone assembly according to Embodiment 3 of the present invention.

FIG. 11 is a perspective view of an umbrella bone assembly according to Embodiment 4 of the present invention.

FIG. 12 is a perspective view of the connecting member shown in FIG. 11;

FIG. 13 is a perspective view of an umbrella bone assembly according to Embodiment 5 of the present invention.

14 is a perspective view of the connecting member shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Top bone, 11 ... Outer part, 112 ... Sharp part, 2 ... Outer bone, 22 ... Outer end part, 21 ... Inner part, 3 ... Ball tip (tip member), 4 ... Expanded bone, 10 ... Connection Reference numeral 12: pivot, 52: middle runner, 53: lower runner, 55: coil spring, 56: top cap member.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 61-184415 (JP, U) Japanese Utility Model Hei 6-72410 (JP, U) Japanese Utility Model Sho 48-66764 (JP, U) Registered utility model 366801 ( JP, U) Jingo 33-5250 (JP, Y1) Jingu 21788 (Taisho 14) (JP, Y1 T) (58) Field surveyed (Int. Cl. ⁶ , DB name) A45B 25/00- 25/30

Claims (1)

(57) [Claims] 1. A pivotally connected to the notch (51) on the central shaft (5) exhibits a U-shaped cross section or a similar shape, are more formed in the aluminum alloy, concave produced by mechanical treatment At least one top bone (1) having a groove formed in the longitudinal direction, and at least one outer bone having a circular or similar cross-section and fixed to an outer portion (11) of the top bone (1). (2) and the middle runner (52) slidably supported by the central shaft (5) and the vicinity of the connection between the top bone (1) and the outer bone (2) of the top bone (1). An expandable bone (4) rotatably connected to a lower runner (53) slidably supported by the expandable bone (4) and the central shaft (5). A supplemental expanded bone (4a) and an enhanced umbrella assembly with the outer bone (2), wherein the outer bone (2) comprises a top bone (1) to form a lightweight and elastic For reinforcement, carbon fiber, glass fiber reinforced plastic, nylon, inorganic fiber reinforced composite material, and engineering having a predetermined good mechanical strength and a predetermined good elasticity against bending, deformation or torsion Composed of a composite or plastic material selected from the group consisting of plastic, held between the middle runner (52) and the lower runner (53) to minimize the dimension perpendicular to the central axis (5). Line for
A coil spring (55) for opening an umbrella provided with a spring ring having a rectangular cross section is further provided, and the top bone (1) is bifurcated to form the outer bone (2).
Crimping leg (111) to cover the inner part (21)
And the outer bone (2) in the outer part (11) of the top bone (1).
The top bone (1) for firmly connecting the sides (21)
From the side toward the inner part (21) of the outer bone (2)
An automatic umbrella comprising: a plurality of pointed portions (112) formed by: