JPS6337850Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Field of industrial application] This invention is a folding umbrella rib that is effective when making a folding umbrella into a flat shape when folded, and is mainly used for upper lathes. Regarding the department.

[Conventional technology]

A well-known folding umbrella has an upper lathe 2 at the upper end of an elastic middle rod 1, as schematically shown in FIG. 9, for example.
, attach a master rib 3 radially to this upper wheel 2, form the master rib 3 into two parts 3a and 3b so as to bend in the middle, and connect it to the lower wheel 5 via a supporter 4 to the part 3a. It has been done. The attachment of the struts 4 to the lower wheels 5 is also radial. When such a folding western umbrella is folded, it becomes a round rod-like structure with a telescopically shortened central rod 1, a supporter 4, bent portions 3a and 3b of the main rib, and a waterproof sheet (not shown) located around the central rod 1. Become. In addition to the above, there are 3 ribs.
Some are made up of parts of a book, but all of them are shaped like a round bar when folded.

[Problem that the invention attempts to solve]

Conventional folding umbrellas have the problem of being in the shape of a round bar when folded, which makes them difficult to carry. for example,
It doesn't fit well when I put it in a shoulder bag with books, and it also doesn't fit well when I put it in my pocket. Of course, a round rod shape may be used as long as it is sufficiently small, but there is a limit to miniaturization, and current technology cannot make it that small.

The object of this invention is to provide a folding umbrella rib having an effective upper wheel part to enable production of a folding western umbrella that is flat in the folded state.

[Means for solving problems]

The means of this invention is such that the upper wheel part of the folding umbrella bone has an elongated base fixed at right angles to the upper end of the middle rod, and a first bent part on both sides of the base in the longitudinal direction. Both movable edges provided so as to be able to rotate between Four or more main bones are provided via second bending parts so that they can be bent, and the proximal ends are fixed to the two movable edges, respectively, and the outer ends extending outward are lowered through the support bones. It consists of both internal bones connected to the.

[Effect]

According to the above means, when opening and closing the umbrella with the waterproof sheet attached to the upper side of the main rib, both movable edges move into the first bent portion with respect to the base fixed to the middle rod of the upper wheel part. The main ribs rotate in an angular range of nearly 90 degrees around the two movable edges, and each rib rotates between moving toward and away from each other on the distal end side around the second bent portion at the base. Therefore, the main rib can be opened and closed in substantially the same way as in a conventional umbrella.
The actual opening/closing operation is performed by driving both movable edges using the same operation as in the past, in which the inner bone, the bridge, and the lower wheel are extended from both movable edges, and the lower wheel is moved up and down along the center rod. I'll do it.

In the folded storage state, each main rib is folded, the middle rod is shortened, and the tarpaulin sheet is folded up appropriately, but each main rib is arranged in two rows on both sides according to the connection position with both movable edges. Since they are located substantially parallel to each other, the overall shape is flat.

〔Example〕

A first embodiment is shown in FIGS. 1 to 7. In the figure, 10 is a telescopic middle rod, 11 is an upper wheel part, and 12 is a lower wheel part.

The telescopic middle rod 10 is made of a metal pipe similar to that used in conventional folding umbrellas, and in this example, it has a three-piece configuration of a two-stage drawer type.

As shown in FIG.
7, 18, 19, 20, 21, 22, 23, and inner bones 24, 25. The base 13 is the fifth
As seen in FIGS. 6 and 6, it is shaped like an elongated small rectangular parallelepiped, and has a coupling shaft insertion hole 13a in the center thereof, which is coupled to the upper end of the middle rod 10. When combined with the center rod 10, it has a substantially T-shape as seen in FIGS. 4 and 7. The movable edges 14 and 15 are provided at the lower edges of both sides along the longitudinal direction of the base 13, respectively.
It is in the shape of a rectangular parallelepiped and has the same length as the base 13 which is connected via the bent portions 26 and 27. In this embodiment, the entire upper lathe part 11 is a series of plastic molded bodies, and flexibility is obtained by forming the wall thinly, and the first bent parts 26, 27
is a thin part between the widths. 8 ribs 16~
23, as shown in FIG.
~23a, Middle rib 16b~23b, Proximal rib 16c
As shown in ~23c, it has a two-stage drawer type three-piece configuration. The original ribs 16a to 19a are attached to one movable edge 14, and the original ribs 20a to 23a are attached to the other movable edge 15 at a second bent portion 29 at appropriate intervals.
are connected through. This second bent portion is a thin walled portion, and the wall thickness is formed to be thinner in the direction in which the original master ribs are adjacent to each other in the respective movable edges 14 and 15. The inner ribs 24 and 25 are fixedly provided closer to the center of each of the movable edges 14 and 15, away from the position of the inner rod 10, and each one extends outward. The length is approximately the same as that of the original rib 16a. At the tips of the inner bones 24 and 25, there are two bridges 30 and 3 provided on the lower wheel 12.
1 has a structure in which the tips thereof are rotatable and detachable from each other, and are connected to each other during use. Its structure is such that, for example, when opening and closing an umbrella, a headed pin is attached to the frame 3, which is perpendicular to the rotation plane approximately centered on the upper lathe side of the main bone.
A recess or groove is provided in the inner bone on the 0 and 31 sides and engages with the head of this pin. Note that the lower wheel part 12 is provided with two braces 30 and 31, which are integrally formed of plastic, and the connecting part is made thin so that it can be bent. It is designed to engage and stop in the middle of the rod 10. This may be the same as the conventional repelling.

In addition, the waterproof sheet will be provided in almost the same way as before, but
In this embodiment, the main rib has an elongated structure, so it is fixed at the tip of the main rib, and the main rib is inserted halfway through a ring provided on the waterproof sheet side.

A Western umbrella in which a waterproof sheet 32 is stretched over the folded Western umbrella ribs is obtained by stretching each of the main ribs 16 to 23 and stretching the middle rod 10 to connect the tips of the inner ribs 24 and 25 and the tips of the struts 30 and 31. It will look like Figure 4. This can be opened and closed in much the same way as a conventional umbrella. That is, if the lower raceway part 12 is raised along the middle rod 10 and locked with a flicker provided at a proper position, it will be in the open state. At this time, the bridge 3
0 and 31 push open the inner bones 24 and 25, the movable edges 14 and 15 rotate from the position shown by the solid line in FIG.
~23 also rotates upward, and at that time the main ribs 16~23
, each of which is restrained at its tip and midway by a waterproof sheet 32, so that the angle between them is regulated so that they are substantially radial. FIG. 7 shows the waterproof sheet 32 in a folded state with the middle rib and front rib omitted.
Although the width becomes wider, the thickness becomes thinner and more flat as shown in FIG. In addition, the waterproof sheet 32
is appropriately convolved so that the whole becomes flat.

In the above embodiment, each of the main ribs is bent at least somewhat at the second bending portion, but
Depending on how they are provided, each movable edge can be arranged so that each movable edge is always perpendicular to the longitudinal direction. This can be controlled by how the tarpaulin sheet is installed. In that case, the main bone and inner bone can be integrally formed. An example thereof is shown in FIG. In the same figure,
Parts equivalent to those in Fig. 5 are indicated by the same drawing symbols.
40 and 41 are the original outer ribs that also serve as inner bones.

In each of the above embodiments, the upper wheel part is integrally molded from plastic, but when using a metal main rib in a conventional umbrella, the original main rib in the above embodiments is formed short and connected to this. Alternatively, it may be directly bendably axially coupled to the movable edges 14, 15. In addition, the first bent portion 26,
27 may be a shaft joint such as in a hinge.

In the above embodiment, the center rod 10 is made of a metal rod, but it may also be made of plastic.

In the above embodiment, the connecting structure of the struts 30 and 31 to the inner bones 24 and 25 was made up of pins and recesses or grooves that connect them during use.
In addition, a groove that opens along the side or lower surface of the inner bone and becomes narrower on the opening side is provided, and a protrusion that engages with the groove and can move along the groove is provided at the tip of the bridge. In the folded state, the protrusion of the bridge engages the groove on the proximal side of the inner bone, and when in use, the upper protrusion engages the groove toward the distal end of the inner bone. The structure may be such that it is moved along the direction and stopped at the tip.

[Effect of idea]

According to this invention, the structure of the upper wheel allows the umbrella to be flat when folded, making it convenient to carry and especially easy to put in a pocket. In addition, since most of the parts can be made of plastic as in the embodiment, it is lightweight and the number of parts can be reduced.
The effect of being able to provide umbrellas at low prices can also be achieved.

[Brief explanation of drawings]

Fig. 1 is a plan view of the main parts of the first embodiment of the umbrella in an open state, Fig. 2 is a front view of the same, Fig. 3 is a side view of the same, and Fig. 4 is an umbrella of the same embodiment. A side view of the closed state, Figure 5 is an enlarged view of the center of Figure 1, and Figure 6 is an enlarged view of the central part of Figure 1.
The figure is an enlarged front view showing a bent state by the first bending part, FIG. 7 is a side view showing a folded state of the main part of the same embodiment, and FIG. 8 corresponds to FIG. 5 of another embodiment. FIG. 9 is a partially enlarged plan view and a front view showing the general structure of a conventional folding umbrella. 10...Middle bar, 11...Upper wheel section, 12...
Lower wheel part, 12a... Lower wheel, 13... Base, 14, 15... Movable edge, 16 to 23...
Main bone, 24, 25... Inner bone, 26, 27... 1st
Bend part, 29...Second bend part, 30, 31...Passive.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A folding umbrella rib having a structure in which an upper raceway is provided at the upper end of the telescopic middle rod, and a main rib that can be folded by a telescopic or bending structure extends from the upper raceway, The part of the potter's wheel is rotatable between the outer side and the lower side via the elongated base fixed at right angles to the upper end of the center rod and the first bending parts on both side edges along the longitudinal direction of the base. a second bending portion extending outwardly from different positions in the longitudinal direction of the two movable edges and bent in a plane including the extending direction and the movable edge; from four or more main bones provided through the above-mentioned movable edges, and both inner bones whose proximal ends are fixed to the movable edges, respectively, and whose outer ends extending outward are connected to the lower wheel via the bridges. A folding western umbrella rib. (2) Scope of Utility Model Registration Claims (1) in which the base, the movable edges, at least the end of the main rib on the movable edge side, and the inner ribs are a series of plastic molded bodies. The folded umbrella bones described in . (3) Scope of the utility model registration claim (1) in which the main rib extending from both movable edges is located near the middle on each side and is integrally formed with the inner bone.
Or the folded umbrella rib described in (2).