JP3010652U - Umbrella rib joint device mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] A mounting structure for an umbrella rib joint device that does not require bonding work, can significantly reduce structural stability, production time and production cost, and has little effect on the rib strength. To provide. [Structure] A joint device 20 is injection-molded at a proper position on a rib 10 of an umbrella, and the joint device 20 and the rib 1 are formed.
The locking pin 30 is provided so as to penetrate through the joint 0, whereby the joint device 20 is stably attached to the rib 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an attachment structure of a joint device for a rib of an umbrella, and in particular, the joint device is formed by injection molding at a proper position on a rib of the umbrella, and a locking pin is provided so as to penetrate the joint device and the rib. The present invention relates to the attachment structure of the joint device for the ribs of the umbrella that gently attaches the joint device to the ribs.

[0002]

[Prior art]

 The umbrella has a plurality of ribs radially arranged to support the cloth of the umbrella, one end of which is attached to a runner slidably provided on the center rod, and the other end of which is provided at an intermediate portion of the ribs. The ribs attached to the joint device are arranged, and the umbrella cloth is supported and deployed above the center rod in cooperation with the ribs and the ribs.

Conventionally, the umbrella ribs have generally been made of metal, but if the umbrella is left in a wet state, the umbrella ribs are quickly oxidized and corroded due to the nature of the metal product itself. As it progresses, there is a bad effect that the joint device that connects the rib and the bone is particularly susceptible to oxidative corrosion.

Recently, there have been proposals to use glass fibers as a material for producing ribs. This is because glass fiber has good elastic properties, is resistant to oxidative corrosion, and the glass fiber itself is relatively lightweight, so that it can be expected to have suitable effects. .

[0005]

[Problems to be solved by the device]

 However, when a glass fiber material is used as the rib, it is extremely difficult to provide a through hole for attaching the joint device to the rib made of glass fiber, which causes a new design problem.

[0006] In developing the glass fiber rib, a product as shown in Fig. 3 was first proposed. The joint 90 of the product is provided with a through hole 91 penetrating in the longitudinal direction, a pivot hole 92 in a downwardly extending portion, and a through hole 93 crossing the through hole 91 in the width direction of the main body. ing. The joint device 90 is attached to the ribs 95 by inserting the ribs 95 into the through holes 91 and injecting an adhesive from the through holes 93 to bond the joint devices 90 to the ribs. One end of the skeleton is pivotally attached to the extended pivot attachment hole 92. However, it is said that the joint device is easily displaced in the product manufactured by this attachment method if the adhesive attachment is not sufficient or the adhesive effect is not sufficient to obtain a sufficient adhesive effect. There is a problem, and moreover, there is a disadvantage that the production cost becomes high because the manual bonding work is required.

Further, recently, a mounting method as shown in FIG. 2 has been proposed. According to this attachment method, the joint device 70 is directly molded on the rib 75 by injection molding. When the joint device 70 is formed, a pivot hole 71 is also formed on the lower side, and one end of the skeleton is rotatably attached by the pivot hole 71.

A notch 76 is provided on the rib 75 near the joint between the joint device 70 and the rib 75 of the product. The notch 76 increases the frictional resistance, so that the joint device 70 can be stably attached to the rib 75. However, by providing the notch 76, the strength of the rib 75 is reduced and the rib 75 is easily formed. There was an inconvenience that it might break.

The present invention has been made in view of the above circumstances, and is a joint device for a rib of an umbrella, which can improve the coupling strength between the rib and the joint and which is stable in the coupled state. The purpose is to provide a mounting structure.

[0010]

[Means for Solving the Problems]

 The present invention provides a "mounting structure of a joint device for a rib of an umbrella, in which a plastic joint device for connecting the rib and the bone to the rib of the fiberglass of the umbrella is attached. A joint device is injection-molded in an appropriate place above, a locking pin is provided so as to penetrate the joint device and the ribs, and the joint device is attached to the ribs. The attachment structure of the joint device is its content.

[0011]

[Action]

 According to the present invention, as described above, the joint device is attached to the rib by injection-molding the joint device at a proper position on the fiberglass rib of the umbrella and providing a locking pin penetrating the joint device and the rib. Since it is not necessary to perform a manual bonding work as in the prior art, the manufacturing cost can be reduced, and the present invention connects and fixes the joint device and the rib with a thin locking pin. The joint device for the rib joint of the umbrella, which has excellent bonding strength, is inexpensive because it does not have a large notch for stably attaching the joint device to the rib. Can be provided.

[0012]

【Example】

 Next, a preferred embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, the joint device 20 of the present invention is directly formed by injection molding at a proper position on the glass fiber ribs 10. Also, one locking pin 30 is provided from one side to the other side of the joint device 20. The joint device 20 is attached to the rib 10 in a stable state by forcibly penetrating it.

In the present invention, since the notch is not provided in the rib as in the conventional example, the strength of the rib is not affected, and the joint device 20 is attached to the rib by the locking pin. As a result, since no troublesome coating process of the adhesive is required, the manufacturing process time can be significantly shortened and the processing cost can be reduced.

Further, in the present invention, a pivot hole 21 is provided in a portion extending in one direction thereof, and one end of the skeleton can be rotatably attached to the pivot hole 21. It has the same effect as the joint device of.

[0015]

[Effect of device]

 Since the joint device of the present invention is directly formed on the rib by injection molding and is attached by the locking pin, there is no need to perform the bonding work, and the production can be automated, and the production time and production cost can be greatly reduced. It has an excellent effect.

Further, since the portion penetrating with the locking pin is extremely minute, it has an excellent effect that it does not affect the strength of the rib.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment according to the present invention.

FIG. 2 is a perspective view showing a conventional example of a structure for attaching a joint device to a rib.

FIG. 3 is a perspective view showing another conventional example of a structure for attaching a joint device to a rib.

[Explanation of symbols]

 10 ... Parent bone 20 ... Joint device 21 ... Pivoting hole 30 ... Locking pin 70 ... Joint device 71 ... Pivoting hole 75 ... Parent bone 76 ... Notch 90 ... Joint device 91 ... Through hole 92 ... Pivoting hole 93 ... Through hole 95 ... ribs

Claims (1)

[Scope of utility model registration request] 1. A mounting structure for a rib joint of an umbrella, wherein a plastic joint for connecting the rib and the rib is attached to the rib of the umbrella, which is made of glass fiber. Attachment of a joint device for a rib of an umbrella, characterized in that a joint device is injection-molded in an appropriate place above, a locking pin is provided so as to penetrate the joint device and the rib, and the joint device is attached to the rib. Construction.