JP3000946U - Umbrellas and umbrella-bone reinforcements with a bend-proof structure - Google Patents

Abstract

(57) [Summary] [Purpose] Reinforce the umbrella bone with a simple structure without making the umbrella bone thick or damaging the umbrella cloth. [Structure] A rib 2 having a U-shaped cross section and a main body 51 having a U-shaped cross section
Is longer than the dowel 5 and the dowel 5 overlaid on the rib 2.
A bar member 8 partially inserted into the main body 51 of the dowel 5 and a bar member fixing member 9 inserted in a proper position of the bar member 8 are provided, and the rib 2 is caulked at the bar member fixing member 9 portion. Thus, the rod 8 is fixed to the rib 2, and the rod 8 reinforces the weak portion of the rib 2, that is, the dowel 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a western umbrella, and more particularly to an umbrella and a reinforcing material for an umbrella bone having a structure reinforced against bending force.

[0002]

[Prior art]

 FIG. 9 is a view showing a part of the umbrella bone of a general western umbrella. The western umbrella includes a column 1, a rib 2 that supports the cloth portion of the umbrella, and a rib (first rib 3 and second rib 4) that holds the rib in an open state. It should be noted that, although one rib is shown in the figure, the umbrella is usually provided with several ribs and a skeleton that supports the ribs. A part of the rib 2 slightly above the center is supported by one end of the rib 3 and the other end of the rib 3 is supported by the pillar 1 of the umbrella so that the rib 2 can be kept in an open state. There is. In order to resist external force, the ribs 2 and the ribs 3 are formed in a U-shaped cross section with an open lower surface when an umbrella is inserted.

Here, when the umbrella is opened, the end of the rib 2 on the side of the column 1 is the central portion and the other end is the peripheral portion. A member called a dowel 5 for attaching a skeleton 5 is provided at a portion slightly above the center of the rib 2 and the center of the peripheral edge, and the skeleton 3 is rotatably supported by the dowel 5. As shown in FIG. 10, the dowel 5 is a body 51 having a U-shaped cross section and a bone support portion 52 integrally formed therewith. The body 51 is fitted into the rib 2 and the rib is caulked to form the rib. It is fixed at 2.

However, in such a cantilevered structure in which the position of the dowel is a fixed portion, the rib 2 may be bent as shown by the pressing force applied to the peripheral portion of the rib 2. The umbrella applies tension to the cloth by the umbrella bone, and the peripheral edge of the rib is under strong tension even under normal conditions. Furthermore, if a pressing force from the outside such as wind is applied to the above, it will be easily bent as shown in the figure.

Therefore, for example, Japanese Utility Model Publication No. 31-1167 (referred to as Conventional Example 1) has devised a rod which prevents bending of the ribs. With this configuration, as shown in FIG. 11, the rod 7 is inserted into the rib 2 over the entire length of the rib 2, and the dowel 6 is arranged on the outer peripheral portion of the rib 2, and the dowel 6 and the rod 7 are placed by the dowel 6. The dowel 6 is crimped so as to wrap around. Further, for example, Japanese Utility Model Publication No. 32-10755 (referred to as Conventional Example 2) proposes a structure in which a reinforcing elastic wire is additionally provided for reinforcing the dowel portion. With this structure, the dowels are reinforced to prevent bending.

[0006]

[Problems to be solved by the device]

 However, the above-mentioned conventional examples 1 and 2 have the following problems.

Conventional Example 1 The dowel 6 is provided on the outer side of the rib 2, and the umbrella bone becomes thick at the portion of the dowel 6.

The cloth of the umbrella comes into contact with the edge portion of the dowel 6, and the cloth is easily damaged.

When caulking the dowel 6, it is necessary to insert the rib 2 into the dowel 6 and the rod 7 into the rib 2 to ensure the alignment and holding of these members before performing the caulking operation. Therefore, the work may be difficult to perform and the caulking work may fail.

The umbrella becomes heavy and the cost becomes high.

Conventional Example 2 The structure is complicated, the workability is poor, and the cost is high.

The weight of the umbrella becomes heavy.

That is, the conventional umbrella structure has problems that the fabric is easily damaged, the structure is complicated, and the umbrella is heavier than necessary. Therefore, a practical, low-cost, long-life umbrella is required. I could not provide.

In view of the above problems, the present invention provides an umbrella and a reinforcing material for an umbrella frame having a simple structure, a low weight, a low cost, a long life, and a bending prevention structure which is easy to work. With the goal.

[0015]

[Means for Solving the Problems]

 The umbrella according to claim 1, which has a rib having a U-shaped cross section and a main body having a U-shaped cross section, the main body being overlapped with the rib, and a body longer than the dowel. A rod member partially inserted into the main body and a rod member fixing member provided at an appropriate position of the rod member and having flange portions formed at both ends thereof are provided, and the bar member fixing member portion holds the ribs. It is characterized in that the rod is fixed to the rib by tightening.

The umbrella according to claim 2 has a rib having a U-shaped cross section and a main body having a U-shaped cross section, the main body being overlapped in the rib, and the dowel being longer than the dowel. A rod member partially inserted into the main body of the dowel; and a rod member fixing member provided at an appropriate position of the rod member and deformable with respect to a pressing force. It is characterized in that the rod is fixed to the rib by caulking the rib.

The reinforcing material of the umbrella bone according to claim 3 is a rod member that can be accommodated in a rib having a U-shaped cross section, and a rod member that is provided at an appropriate position of the rod member and has flange portions formed at both ends. A fixing member, which is inserted into the rib and fixed to the rib by caulking the rib at the rod fixing member portion.

According to a fourth aspect of the present invention, there is provided a reinforcing material for an umbrella bone, which is a rod member which can be accommodated in a rib having a U-shaped cross section, and a rod which is provided at an appropriate position of the rod member and is deformable with respect to a pressing force. A material fixing member, which is inserted into the rib and fixed to the rib by caulking the rib at the rod fixing member portion.

[0019]

[Action]

 In the umbrella frame according to claim 1, a rod fixing member is inserted into a proper position of the rod, and the rod is inserted into a rib having a U-shaped cross section so that the rod fixing member is The rib is caulked and the rod is fixed to the rib. At this time, the amount of caulking of the ribs can be fixed by engaging the flange portion with a large diameter, so that a small amount of caulking is sufficient, and the burden on the ribs due to caulking is not increased.

The action when an external force is applied to the umbrella bone will be described with reference to FIG. First, in a state where no external force is applied to the umbrella bone, as shown in FIG. 1 (A), the rod 8 attached to the rib 2 through the dowel 5 and the rod fixing portion 9 causes the deflection of the rib 2 ( It is slightly bent along with the umbrella cloth (which is caused by the tension of the umbrella cloth), and a part thereof is in contact with the ribs 2. Next, a state in which a pressing force is applied to the umbrella bone will be described with reference to FIG. When an external force is applied to the ribs 2, the bending moment gradually increases from the peripheral edge to the fulcrum (the bone receiving portion supported by the dowels 5). However, since the dowel 5 portion is reinforced by the rod member 8, it is difficult to break. Therefore, even if the bending moment is large, the bending moment is prevented. Moreover, as can be seen from the fact that the rod 8 is housed in the dowel 5 in the rib 2, it is much thinner than the rib 2 and is flexible in terms of thickness. Therefore, the rod 8 does not flex appropriately and the ribs 2 do not break at the end of the rod 8.

In the umbrella bone according to a second aspect of the present invention, the rod member fixing member inserted into the end portion of the rod member is deformable with respect to the pressing force, and the rod member is inserted into the rib and the rod is fixed. When the ribs are caulked at the position of the material fixing member, the rod fixing member is easily deformed and fits with the ribs. At this time, the amount of caulking of the ribs may be small because the rod fixing member is easily deformed, and the burden on the ribs is reduced. The action when an external force is applied to the umbrella bone is the same as in the case of claim 1 above.

In the reinforcing material for the umbrella bone according to claim 3, the reinforcing material is inserted into the rib of the umbrella bone, and the rib is caulked by the bar fixing member portion of the reinforcing material to form the rib. Can be fixed to. This reinforcing material can be attached to the ribs of a commercially available umbrella to reinforce the ribs.

Further, in the reinforcing material for umbrella frame according to claim 4, the reinforcing material is inserted into the rib of the commercial umbrella as in the invention according to claim 3, and the bar fixing member portion of the reinforcing material is inserted. The reinforcing material can be fixed to the rib by caulking the rib.

[0024]

【Example】

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

FIG. 2 to FIG. 4 are views showing parts constituting a main part of the umbrella bone of the umbrella which is the embodiment of the invention as set forth in claim 1. In the figure, the ribs and dowels are the same as the conventional ones and are designated by the same numbers.

FIG. 2 shows the ribs 2, and FIGS. 2A and 2B are a sectional view and a front view of the ribs. As shown, the rib 2 has a substantially U-shaped cross section with an open bottom. The rib 2 is formed of an inexpensive material such as steel.

3A and 3B are a sectional view and a front view of the dowel 5. The dowel 5 is formed by integrally forming a main body 51 and a skeleton supporting portion 52, and the main body 51 has a U-shaped cross-section that is open at the lower side like the ribs. Below the main body 51, and at the central portions of the two U-shaped pieces, the bone-supporting portions 52 are formed in a protruding manner. An attachment hole 53 is formed in the central portion of the skeleton support portion 52. A skeleton (not shown) is fitted between the skeleton supporting portions 52, 52, and is fixed via a mounting hole 53 by an eyelet (not shown). At this time, the skeleton is rotatably fixed to the dowel 5. Further, a cutout portion 54 is provided in the lower portion of the dowel body 51 for facilitating the caulking of the rib 2 when the caulking with the rib 2 is prevented. The dowels 5 are made of an inexpensive material such as steel, like the ribs 2.

4A and 4B are a sectional view and a front view of the reinforcing material. The reinforcing member is composed of a rod member 8 and a rod member fixing member 9. The rod 8 is a round rod made of a material having an elastic strength in the axial direction (high Young's modulus against bending and difficult to plastically deform). As this material, for example, a stainless material or the like is used. In particular, a stainless material is preferable because it is difficult to rust and its elastic force does not decrease even if it gets wet with rain. The length of the rod is preferably set so as to be about ⅕ of the length of the rib in the peripheral direction of the rib 2 from the dowel fixing position, whereby the external force applied to the rib can be dispersed. . The length of the bar member 8 is about 8 cm, including the length of the dowel fixing portion.

A bobbin-shaped rod fixing member 9 is fitted on the outer peripheral surface of the rod 8. In this embodiment, the eyelet is processed into a bobbin shape and used as the bar fixing member 9. That is, as shown in the figure, the eyelet has a tubular shape with a flange 91 formed at one end, and by hitting and crushing the end on the opposite side of the eyelet, as shown in the figure, the opposite side is formed. A flange portion 92 is formed at the end of the. The rod fixing member 9 is fitted into the end of the rod 8.

Next, a procedure for fixing the bar fixing member 9 to the end of the bar will be described. As an example, a bar material fixing member 9 having an inner diameter larger than the outer diameter of the bar material 8 is used, and the bar material 8 is crushed into an elliptical shape in advance before the bar material fixing member 9 is fitted into the bar material 8. The crushed portion is slightly inside the end portion of the rod member 8, and the rod member fixing member 9 is inserted there to fix the rod member fixing member 9. As another fixing method, the rod fixing member 9 is fitted into the rod 8 and then lightly crushed so that the rod fixing member 9 has an elliptical cross section.

The rod member fixing member 9 may be a bobbin-shaped member or the like in advance. Further, when the bar fixing member 9 is formed of an eyelet, one having elastic force is used so as not to be broken when the flange is formed on the other end side 92. The outer diameter of the flange of the rod fixing member 9 is preferably set to be equal to or slightly smaller than the inner diameter of the rib 2.

Next, the assembly of the umbrella frame will be described. 5 (A), (B), and (C) are a front view of the vicinity of the dowel 5 in the assembled state of the canopy, a cross-sectional view of the dowel 5 part, and a cross-sectional view of nine bar fixing members.

When assembling the umbrella bone, first, the dowel 5 is inserted at a position slightly above the central portion between the central portion and the peripheral portion of the main rib 2. Then, the dowels 5 are fixed to the ribs 2 by caulking the ribs 2 near both ends of the dowels 5 (A in the figure; positions corresponding to the notches 54). Next, the rod 8 is inserted into the dowel 5 portion. At this time, the rod 8 is set so as to protrude from the position of the dowel 5 toward the peripheral edge of the rib 2 by about 1/5 of the length of the rib 2. Further, the rod member 8 is inserted so that the rod member fixing member 9 attached to the rod member 8 becomes the peripheral portion of the rib 2. In that state, when the concave portion of the rod fixing member 9 is slightly caulked, the caulking portion engages with the concave portion of the rod fixing member 9 for preventing the rod 8 from moving, as shown in FIG. 5 (C). The bar 8 is fixed. In this fixing, since the central portion of the rod fixing member 9 is concave, the rib 2 is caulked and fitted in the concave portion, that is, the void portion. Therefore, it is not necessary to caulk with strong force when caulking the ribs 2. That is, if the parts are to be caulked and then they are to be caulked, the parts must be plastically deformed for engagement. If one is formed in a concave shape, both can be engaged by plastically deforming only one. Moreover, since this engaging portion may be a stopper structure of the bar member 8 on which no force acts during use, the engaging force does not have to be so large. Therefore, in the case of this embodiment, it is not necessary to apply a strong plastic deformation force to the ribs, and the ribs can be prevented from being damaged.

The rod 8 is fixed by caulking the main rib 2 at the position of the rod fixing member 9 as described above, and the rib 3 is attached to the dowel 5 from above the rod 8. This prevents it from coming off the dowel 5.

Further, as described in claim 3, the reinforcing material (the rod 8 and the rod fixing member 9) can be configured as a single component. When the reinforcing material is attached to a commercially available umbrella, the supporting frame 3 is already attached to the dapo 5, and the rod 5 is slid under the supporting frame 3 by an appropriate amount, and then the rod 3 is attached. It can be attached by a simple operation of just caulking the rib 2 at the position of the fixing member 9. By attaching the reinforcing material, the ribs can be reinforced as if they were originally attached.

Here, comparing the present embodiment with the conventional example, as shown in FIG. 6B, in the conventional configuration, the rod 7 arranged in the rib is directly caulked by the rib 2. Therefore, the bar 7 must be thickened. This is because if the bar is made thinner, the caulking amount of the rib 2 must be increased accordingly. Then, if the bar 2 is made thicker, the rigidity of the bar 2 increases and it becomes difficult to bend, and this time the bar 7 is bent at the end. On the other hand, in the case of the present embodiment shown in FIG. 6 (A), by inserting the rod into the dowel provided in the rib, the rod becomes thin, and even if the rod becomes thin, the rod is fixed. The member allows the rod to be fixed to the ribs. Since the bar can be made thin in this manner, the rigidity of the bar is moderate and the bar can be appropriately bent with respect to an external force.

The position of the rod fixing member 9, that is, the position of fixing the rod 9 to the rib 2 may be an appropriate position of the rod 8, and in short, the rod 8 may be fixed to the rib 2. For example, as shown in FIG. 7, the rod member fixing member 9 may be arranged so as to be closer to the center side than the dowel 5, and the rod member 8 may be fixed closer to the center side than the dowel 5. Further, the bar fixing member 9 may be formed integrally with the bar 8.

As the rod member fixing member, as described in claim 2, a cylindrical member having a deformation characteristic with respect to a pressing force may be used. Specifically, as shown in FIG. 8 (A), a cylindrical member 11 made of a material such as resin or urethane which is easily plastically deformed, or a coil spring 12 as shown in FIG. 8 (B). It is possible to use those configured so as to have a plastic deformation force depending on the shape such as. For example, when the cylindrical member 11 made of resin or the like is used as the rod member fixing member, the resin member can be easily deformed to fix the rod member 8 to the rib 2. Further, for example, when the coil spring 12 is used as a rod fixing member, a gap is created between the coil springs due to the pressing force at the time of caulking, and the caulking portion of the rib 2 is fitted into the gap and both Person is fixed.

[0039]

[Effect of device]

 According to the umbrellas of claims 1 and 2, the rod fixing member uses the rod inserted into the end portion for reinforcement, and the umbrella bone does not become thick in part. It has the advantages that it does not scratch, it is easy to assemble, it has a low weight because it only contains a small bar, it is easy to assemble, and the parts are cheap, so the cost is low. In addition, the rod can be fixed to the rib with a small amount of crimping of the rib, and the rib can be reinforced without significantly damaging it. In addition, since the rod can be made thinner than the ribs, the rod becomes appropriate in rigidity and easily bends, and the ribs can be prevented from bending at the ends of the rod.

According to the reinforcing material for umbrella bones of the third and fourth aspects, the umbrella bones of commercially available umbrellas can be easily reinforced.

[Brief description of drawings]

FIG. 1 is a view for explaining the operation of the device according to claim 1.

FIG. 2 is a cross-sectional view of the rib of the umbrella bone, which is an embodiment of the present invention,
It is a front view.

FIG. 3 is a cross-sectional view and a front view of a dowel in the umbrella bone.

FIG. 4 is a cross-sectional view and a front view of a reinforcing material of the umbrella bone.

FIG. 5 is a front view showing an assembled state of the umbrella frame, a cross-sectional view of a dowel portion, and a cross-sectional view of a rod fixing member portion.

FIG. 6 is a diagram for comparing the configuration of the umbrella frame of this embodiment with the configuration of a conventional umbrella frame.

FIG. 7 is a view showing another embodiment, and is a front view showing an assembled state of the umbrella bone.

FIG. 8 is a diagram according to an embodiment of claims 2 and 4 and shows a configuration of a bar member fixing member.

FIG. 9 is a view showing a part of a general umbrella bone.

FIG. 10 is a diagram showing a configuration example of a conventional umbrella frame.

FIG. 11 is a diagram showing a configuration example of a conventional umbrella frame.

[Explanation of symbols]

 1 prop 2 rib 3 braid 5 dowel 8 rod 9 rod fixing member (eyelet)

Claims (4)

[Scope of utility model registration request] 1. A dowel having a U-shaped cross-section rib and a U-shaped cross-section main body, wherein the main body is superposed in the rib, and the dowel is longer than the dowel and part of the dowel body. And a rod fixing member that is provided at an appropriate position of the rod and has flange portions formed at both ends, and the rod is fixed by caulking the ribs. An umbrella with a bend-preventing structure, characterized in that the material is fixed to the ribs. 2. A rib having a U-shaped cross section and a main body having a U-shaped cross section, the main body being overlapped with the main rib, and a dowel that is longer than the dowel and is partially inside the main body of the dowel. And a rod fixing member which is provided at a proper position of the rod and has a deformability with respect to a pressing force, and by caulking the ribs at the rod fixing member portion, An umbrella with a bending prevention structure, characterized in that a rod is fixed to a rib. 3. A rod member which can be housed in a rib having a U-shaped cross section,
A rod fixing member which is provided at a proper position of the rod and has flange portions formed at both ends, and is inserted into the rib.
A reinforcing material for an umbrella bone, which is fixed to a rib by caulking the rib at the rod fixing member portion. 4. A rod member that can be housed in a rib having a U-shaped cross section,
A rod fixing member which is provided at an appropriate position of the rod and has a deformability with respect to a pressing force, and is inserted into the rib.
A reinforcing material for an umbrella bone, which is fixed to a rib by caulking the rib at the rod fixing member portion.