JPS6348525B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention particularly relates to an umbrella rib structure for a folding umbrella that can be folded compactly.

[Background of the invention]

Conventionally, the structure of a commonly used folding umbrella is as shown in FIGS. 5 and 6, for example. That is, the folding umbrella shown in FIGS. 5 and 6 includes a fixed wheel 2 attached to the tip of an umbrella stem 1, and a movable slider 3 formed on a slider 3 that is slidably fitted to the umbrella stem 1. A potter's wheel 4, a support bone 5 whose one end is connected to the movable wheel 4, and an auxiliary support bone 6 whose one end is connected to the fixed wheel 2 and the other end is connected to a connection point A provided on the support bone 5. , a frame 7 whose one end is connected to a connecting point B provided on the sub-branch 6, and an extended bone 8 which is connected to both the tip of the column 5 and the tip of the frame 7. , connection points of the extended bone 8 with the support bone 5 and the bridge bone 7 are designated as C and D.
In the bone structure of the folding umbrella configured in this way, since the connection point A of the support bones 5 and the connection point B of the sub-support bones 6 are constant and do not change, the length of the connection umbrella bones when the umbrella is folded is is not shortened,
Therefore, there was a problem that the folding umbrella could not be folded compactly.

[Purpose of the invention]

The present invention was made in order to eliminate such conventional problems, and provides an umbrella structure for a folding umbrella in which the length of the umbrella ribs is shortened when the umbrella is folded, so that it can be folded compactly. The purpose is to

[Embodiments of the invention]

The present invention will be explained in detail below based on the embodiments shown in FIGS. 1 to 4.

In FIGS. 1 to 3, 11 is an umbrella stem, and a fixed wheel 12 is integrally formed at the tip of this umbrella stem 11. Reference numeral 13 denotes a slider that is slidably fitted to the umbrella stem 11, and is formed integrally with the slider 13 so as to slide along the umbrella stem 11 together with the slider 13. The first movable potter's wheel 1
4 and a second movable potter's wheel 15 are formed. 1
Reference numeral 6 denotes a support which has one end connected to the second movable potter's wheel 15, and the other end, that is, the tip, of this support 16 is connected to a bearing point d provided at one end of a joint 17. Reference numeral 18 denotes an active joint that is slidably fitted along the support bone 16. Bearing points a and b are formed at two locations on this active joint 18, and one bearing point a and the joint 17 are formed at two locations. Bearing point c provided at
An auxiliary support 19 is installed between the two. 2
0 is a sub-branch constructed between a bearing point b provided in the active joint 18 and the fixed wheel 12, and a connection point e provided in the middle of this sub-propagum 20 and the first movable Between the potter's wheel 14, there is an auxiliary sub-branch 21
has been erected. 22 is an extended bone connected to the joint 17. The shape of the active joint 18 is the third
This is also clear in the figure.

The structure of this embodiment has been described above.Next, its operation will be described.As is well known, when opening an umbrella, the umbrella is opened by pushing up the slider 13 along the umbrella stem 11. By pushing up, the tip of the sub-branch 20 becomes the auxiliary sub-branch 2.
1 is pushed up. As the active joint 18 is pushed toward the distal end of the substratum 16 by this pushing of the tip of the sub-support bone 20, the movement of the active joint 18 causes the sub-support bone 19 to move toward its distal end. In order to open the umbrella, the extending rib 22 rotates in the horizontal direction about the bearing point d, and the opening of the umbrella is completed (see FIG. 2). Next time you close the umbrella, pull down the slider 13 along the umbrella stem 11.
3, the connection part of the auxiliary sub-branch 21 with the movable potter's wheel 14 is pulled down,
The sub-branch 20 rotates in the vertical direction using the connection part with the fixed potter's wheel 12 as a fulcrum. The active joint 18 is moved along the support bone 16 in the direction of the joint with the movable potter's wheel 15 of the support bone 16 in accordance with the rotation of the sub-support bone 20. The force pulls the auxiliary support bones 19 toward the canopy stem 11, and as a result, the extending ribs 22 rotate in the vertical direction about the bearing point d as a fulcrum and are brought close to the canopy stem 11 to close the umbrella, that is, to close the umbrella. The folding is completed.

In this way, the umbrella structure in this embodiment connects one end of the sub-branch 20 to the stem 16 via the active joint 18.
Since the umbrella is supported and connected, the distance between the bearing point b and the second movable wheel 15 can be shortened when the umbrella is closed, and the slider 13 can be positioned near the upper end of the umbrella stem 11. As compared in FIG. 1 and FIG. 5, the position of the slider 13 in this embodiment can be positioned higher than the conventional slider 3 by H, so that when the umbrella is closed, The folded shape can be made compact.

FIG. 4 shows another embodiment of the present invention, in which the first movable potter's wheel 14 and the second movable potter's wheel provided on the slider 13 in the previous embodiment are replaced by a single movable potter's wheel. The other structure is the same as that of the previous embodiment except that the structure is shared by 23. Therefore, in this embodiment as well, one end of the support bone 16 and the auxiliary sub-support bone is connected to the slider 13.
Since the structure is such that they are connected via a potter's wheel, the same effects as in the previous embodiment can be obtained.

[Summary of the invention]

As described above, the present invention includes an umbrella stem having a fixed potter's wheel formed at its tip, a slider that is slidable along the umbrella stem and has a movable potter's wheel, and one end of which is connected to the movable potter's wheel. A spine with an extended bone connected to the other end, and this spine,
an active joint that is slidably fitted in the direction of the bone axis; a sub-branch that is constructed and connected between the active joint and the fixed potter's wheel; and a sub-branch between the sub-branch and the movable potter's wheel. The umbrella rib structure of the folding umbrella is composed of an auxiliary sub-branch that is erected and connected, and an auxiliary auxiliary spine that is erected and connected between the active joint and the extended bone.

〔Effect of the invention〕

Therefore, according to this umbrella structure, in particular, the active joint is slidably fitted to the support bone, and the active joint is provided with a
Since one end of the sub-branch and one end of the auxiliary sub-branch are connected, the connecting point of the sub-branch and the sub-branch changes when the umbrella is opened and closed, and as a result, the umbrella when closed is This has the effect of making the folded shape of the bone more compact.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the umbrella rib according to the present invention in a folded state, Fig. 2 is a front view showing its unfolded state, Fig. 3 is a perspective view of only the active joint, and Fig. 4 is a front view showing the umbrella rib according to the present invention in its unfolded state. Partial front view showing another embodiment, No. 5
The figure is a front view showing a conventional example in a folded state, and FIG. 6 is a front view showing its unfolded state. 11... Umbrella stem, 12... Fixed potter's wheel, 13... Slider, 14... First movable potter's wheel, 15... Second movable potter's wheel, 16... Support bone, 17... Joint, 18... Active joint, 19... Auxiliary support bone, 20...Auxiliary sub-branch, 21...Auxiliary sub-branch, 22...Extended bone, 23...Movable potter's wheel.

Claims (1)

[Claims] 1. A fixed wheel 12 is integrally formed at the tip of the umbrella stem 11, and a slider 13 is slidably fitted to the umbrella stem 11.
A first movable potter's wheel 14 and a second movable potter's wheel 1 are formed integrally with this slider 13 and slide along the umbrella stem 11 together with this slider 13.
5 is formed, and one end is connected to the second movable potter's wheel 15 to provide a support bone 16, and the tip of this support bone 16 is connected to a bearing point d provided at one end of a joint 17. An active joint 18 is slidably fitted along the joint 16, and bearing points a and b are formed at two locations on the active joint 18, one bearing point a and a bearing point c provided on the joint 17. An auxiliary support 19 is installed between the active joint 18 and the fixed wheel 12, and a sub-support 20 is installed in the active joint 18 between the bearing point b and the fixed wheel 12. Connection point e
and the first movable potter's wheel 14, an auxiliary sub-branch 21 is constructed, and an extended bone 22 is installed in the joint 17.
An umbrella rib structure of a folding umbrella characterized by having a contact structure.