JPS6331606A - Automatic opening and closing umbrella - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic opening/closing umbrella that can be opened and closed automatically with a single touch.

[Conventional technology]

Conventionally, there are umbrellas on the market that can be opened automatically with just a touch. On the other hand, various proposals have been made regarding umbrellas that can be opened and closed automatically. Conventionally, this type of automatic opening/closing umbrella has a structure in which important parts of the opening/closing mechanism are built into the umbrella shaft.

[Apex while the invention is trying to solve]

In the conventional automatic opening/closing umbrella mentioned above, the important part of the opening/closing mechanism is built into the umbrella shaft, so the opening/closing mechanism requires processing of the inner surface of the extremely narrow umbrella shaft or precision processing and assembly of extremely small parts. The reality is that there are very few of them that can be put to practical use because they are disadvantageous in terms of cost, and if the umbrella shaft bends during use, the opening/closing function will no longer work.

The present invention overcomes the above problems, does not require precision parts or assembly for the opening/closing mechanism, does not interfere with the opening/closing function even if the umbrella shaft is bent, is lightweight, and allows easy opening/closing operations. The purpose is to provide an automatic opening/closing umbrella that can be opened and closed with just a touch.

[Means for solving problems]

The means of the present invention for solving the above-mentioned problems is an automatic opening/closing umbrella equipped with a sliding tube fitted with an umbrella shaft tail and opening and closing the umbrella by sliding along the umbrella shaft. A closed wire having one end attached to the lower end of the sliding tube and the other end wrapped around a closed foil, and a closed wire having one end attached to the upper end of the sliding tube and rotatably attached to the upper part of the umbrella shaft. an opening wire that is hung on the upper foil and reversed and arranged below the sliding tube and wound around the opening foil; a switching means for switching the rotational drive of the opening/closing foil for opening/closing the opening/closing foil; This automatic opening/closing umbrella is characterized by being equipped with a driving means for rotating the umbrella.

[For production]

To open the umbrella from the closed state, the switching means rotates the opening wheel and pulls up the sliding tube via the opening wire. In the case of a closing operation, the switching means rotates the closing foil to pull down the sliding tube via the closing wire. The driving means is appropriately energized.

〔Example〕

Next, the present invention will be described by way of examples with reference to the drawings.

FIG. 1 is a partially sectional front view of an embodiment of the present invention. A sliding tube 2 is slidably and loosely fitted onto the umbrella shaft l, and a plurality of support beams 3 are rotatably engaged with the upper end of the sliding tube 2. Umbrella shaft 1
Two grooves 1a and 1a' extending symmetrically in the axial direction are formed on the outer surface of the groove. The closed wire 4 is attached at the upper end to the lower end of the inner surface of the sliding tube 2, passes through the groove 1a', and the lower end is wrapped around the closed foil 5. The open wire 6 is attached at one end to the upper end of the inner surface of the sliding tube 2, passes through the groove 1a' and extends upward, is hung on an upper foil 7 rotatably mounted in the umbrella shaft 1, and is inverted. It passes through the groove la and the other end is wrapped around an open foil.

The opening wires 4 and 6 are made of high tensile stainless steel wire or high tensile synthetic fiber.

The umbrella shaft 1 is connected at its lower end to an opening/closing drive section 10 including opening/closing wheels 5 and 8. The opening/closing drive unit 10 is housed in the handle of the umbrella.

FIG. 2 is a detailed sectional view of the opening/closing drive unit 10. In this figure, a drive shaft 11 is rotatably supported by a frame 12 via a bearing portion 12a, and a gear wheel 13 is fitted near one of the bearing portions 12a. An annular switching disc 14 is disposed at the longitudinal center of the drive shaft 11.
is slidably supported by two support bars 14a, 14a as shown by arrow A. Two drive plates 16 and 17 are fitted to the drive shaft 11 on both sides of the disk 140. An open foil 8 is provided on the outside of each of the two drive plates 16 and 17.
and a closing foil 5 are disposed, both foils 8.5 are loosely fitted onto the drive shaft 11, and two protrusions 8a, 5 are provided on the inner surface.
A is provided protrudingly. Inner hole 14a of conversion disk 14
Two actuating rods 18, 19 parallel to the drive shaft 11 through the
are arranged, and the actuating rods 18 and 19 slidably pass through the drive plates 16 and 17 at both ends, respectively. Flanges 18a and 19a are fixed to the actuating rods 18 and 19, respectively, and a spring 18b is disposed between the drive plate 16 and the flange 18a, and the flange 18a is connected to the actuating rod 18.
At the same time, it is urged to press against the disk 14.

A spring 19b is similarly arranged between the flange 19a and the driving plate. A switching device 21 having two switching rods 21a and 21b is rotatably attached to the opening/closing drive unit at a fulcrum 21c, and the tip of the switching rod is arranged to sandwich the disc 14, and on the opposite side there is a switching protrusion 21d. , 21e
are protruding from both sides. A concave drive gear 4 engages with a gear wheel 13 and is driven by a mainspring spring B,
The main spring blade is biased by the wire 23aK. Most of the members used in the opening/closing drive unit 10 can be made of plastic materials, except for the mainspring spring η.

The operation of this automatic opening/closing umbrella will be explained. When changing the position of the sliding tube 2 shown by the solid line in FIG. 1, that is, the closed position of the umbrella, to the open position shown by the chain line 21, when the switching protrusion 21e of the switching device 21 is pushed, the switching disc 14 is moved by the switching rod 21b as indicated by the arrow Move to the left as shown in B. At this time, the actuating rod 18 also moves in the direction of arrow B via the flange 19a due to the action of the spring 19b, and the protrusion 8 of the open wheel 8
a, and by the action of the spring 19b, the actuating rod 18
and the protrusion 8a are reliably engaged. The drive shaft 11 is rotated by a mainspring spring through the drive gear wheel 13, and this rotation causes the drive plate 16 to rotate, and further rotates the open wheel 8 through the operating rod 19 and the protrusion 8a. The opening wire 6 is wound by 80 rotations of the opening wheel, and the opening wire 6 moves in the direction of the arrow O through the upper foil 7 to raise the sliding tube, and stops at the open position shown by the chain line 2', and the umbrella is opened. The operation ends. In the case of the opening operation, the other actuating rod 18 also moves in the same direction as the actuating rod 19, the engagement between the actuating rod 18 and the closing foil 5 is released, and the closing foil 5 does not rotate.

To close the umbrella, when the projection 21d is pressed, the switching rod 21a moves the disk 14 to the right as shown by arrow C, and the operating rod 18 also moves accordingly. The closing wheel 5 rotates and the closing wire 4 pulls down the sliding tube 2 to perform a closing operation.

The action of the actuating rod 19 at this time is similar to that in the opening operation. At the end of opening and closing, the rotation of the drive shaft 11 naturally stops.

The third figure shows another embodiment of the switching disc 14, in which the switching disc 14 is a switching device 31 consisting of a short cylinder 31a in which a plurality of inclined grooves 31b are formed and seven flange 31c.
A protrusion 14a attached to the periphery of the disc 14 engages with the inclined groove 31b to move the switching disc 14 in the direction indicated by the arrow. Adjust the mainspring spring as appropriate.2
It is energized by 3a.

〔Effect of the invention〕

As explained above, in the present invention, the sliding tube loosely fitted to the umbrella shaft is moved by an opening/closing wire, and the movement of the wire can be automatically switched in either the opening or closing direction by a switching means. . Since there is no opening/closing mechanism built into the umbrella shaft like in the past, the device is easy to process and assemble, and even if the umbrella shaft is slightly bent, the opening/closing function will not be affected.

Furthermore, most of the opening/closing drive members can be made of plastic material, so they are lightweight.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view of one embodiment of the present invention, FIG. 2 is a partially detailed sectional view of FIG. 1, and FIG. 3 is a side view of another embodiment of the switching disk used in the present invention. be. 1...Umbrella shaft, 2...Sliding
Part 3... Branch pipe, 4... Closed wire, 5... Closed foil, 6... Open wire, 7...・Top foil, 8...
Opening wheel, 10...Opening/closing drive unit.

Claims (1)

[Claims] In an automatic opening/closing umbrella equipped with a sliding tube that is slidably loosely fitted onto an umbrella shaft and opens and closes the umbrella by sliding along the umbrella shaft, one end of the sliding tube is attached to the lower end of the sliding tube. A closed wire whose end is wrapped around a closed foil, and one end of which is attached to the upper end of the sliding tube, is hung on an upper foil rotatably mounted on the upper part of the umbrella shaft, and is inverted to open the sliding tube. It is characterized by comprising an opening wire disposed below and wound around the opening foil, a switching means for switching rotational drive of the opening/closing foil for opening and closing the opening/closing foil, and a driving means for rotating the opening/closing foil. Automatic opening/closing umbrella.