JPH0167909U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 5 show an umbrella opening/closing device according to an embodiment of the present invention. Figure 1 is a front view of the device in an intermediate state between opening and closing, and Figure 2 is the same 3 is a front view of the same umbrella in the closed state; FIG. 4 is a side view of the main parts; FIG. 5 is a vertical sectional view of the main parts according to another embodiment; FIG. 6 is a front view of a conventional device. 1... Middle stick, 2... Upper wheel, 3... Outer rib, 4
... Bone, 5 ... Bottom wheel, 10 ... Window hole, 11
...Wire, 12...Reinforcement spring, 13...
...stopper, 14...tightening tube.

Claims (1)

[Claims for Utility Model Registration] (1) A rib whose one end is pivotally attached to a potter's wheel that is fixed to the upper side of the center rod, and one end of which is slidably fitted to the outer circumferential surface of the center rod. A strut that is pivotally attached to the potter's wheel and has a window hole at the end of the rib side, a tension spring mechanism for assisting rotation of the strut that is inserted through the window hole of the strut and has both ends fixed to the rib, and a middle rod. An umbrella opening/closing device comprising: a stopper disposed above the lower wheel for regulating the rising position of the lower wheel when the umbrella is opened. (2) The umbrella opening/closing device according to claim 1, which is made of a single long bone and is not foldable. (3) The umbrella opening/closing device according to claim 1, wherein the main rib is formed by pivotally connecting a plurality of split bones and is foldable. (4) Utility model registration claims 1 and 2, characterized in that a wire inserted through the window hole of the bridge and fixed to the main bone at both ends is used as a spring mechanism for assisting rotation of the bridge. The umbrella opening/closing device according to item 2 or 3. (5) As a tension spring mechanism for assisting rotation of the strut,
Utility model registration claim 1, characterized in that a wire is inserted through a window hole in a support bone and both ends are fixed to the main bone, and an auxiliary spring such as a coil spring is attached to one end of the wire. 3. The umbrella opening/closing device according to item 2, item 3, or item 3. (6) As a tension spring mechanism for assisting rotation of the strut,
A wire inserted through the window hole of the bridge and fixed to the main bone at both ends, an auxiliary spring such as a coil spring attached to one end of this wire, and the end of the wire on the side where the auxiliary spring is not attached. and a tightening tube tightly fitted to the outer circumferential surface of the main rib in order to bring both ends of the auxiliary spring into close contact with the groove of the main rib. Or the umbrella opening/closing device according to item 3. (7) Claims 1 and 2 of the utility model registration claim characterized in that a protrusion protruding from a predetermined position on the upper side of the center rod is used as a stopper for regulating the rising position of the lower wheel when the umbrella is opened. , the umbrella opening/closing device according to item 3, item 4, item 5, or item 6. (8) Registration of a utility model characterized in that a cylindrical body that protrudes a predetermined length from the lower surface of the upper wheel or the upper surface of the lower wheel and fits on the outer peripheral surface of the middle rod is used as a stopper for regulating the rising position of the lower wheel when the umbrella is opened. The umbrella opening/closing device according to claim 1, 2, 3, 4, 5, or 6.