JPH08322622A - Umbrella - Google Patents

Abstract

PURPOSE: To automatically perform the opening operation and closing operation of an umbrella with one hand having the umbrella. CONSTITUTION: A screw shaft 4 is installed rotatably within a supporting shaft 2. The screw shaft 4 is equipped with a nut 10 screwed on it for ascent and descent. A supporting rib 15 is coupled with the nut 10 for ascent and descent. The screw shaft 4 is equipped with an electric motor 7. A grip 1 is equipped with a changeover switch for changing rotation of the electric motor 7 over to either normal or reverse rotation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an umbrella, and more particularly to an umbrella that electrically opens and closes an umbrella frame.

[0002]

2. Description of the Related Art Conventionally, by operating a push button,
A so-called jump type umbrella is known in which the umbrella bone is automatically opened by the repulsive force of a spring provided on the main shaft portion.

[0003]

In the above-mentioned umbrella, it is convenient to open the umbrella bone with one hand, but it is necessary to perform the closing operation of the umbrella bone with both hands, and carry the luggage in one hand. It is inconvenient to close the umbrella when you are in

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an umbrella which can perform both opening and closing operations of the canopy bone with one hand.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention according to claim 1 provides a screw shaft (4) rotatably in a support shaft (2), An elevating nut (10) is screwed onto the screw shaft (4), a fulcrum (15) is connected to the elevating nut (10), and the screw shaft (4) is rotated by an electric motor ( 7), and the handle (1) is provided with a changeover switch (16) for switching the rotation of the electric motor (7) between normal and reverse directions.

According to this invention, the electric motor (7) is normally rotated by operating the changeover switch (16) provided on the handle (1).
By reversing, the umbrella can be automatically opened and closed.

According to a second aspect of the present invention, the connection between the elevating nut (10) and the fulcrum (15) is performed by using the elevating nut (1).
The support ring (11) is arranged on the outer periphery of (0)
It is characterized in that the supporting bone (15) is connected to the shaft, and the lifting nut (10) and the supporting ring (11) are connected so as to be separable.

According to the present invention, when the electric motor does not operate for some reason, the lifting nut (10) and the supporting ring (11) are released from the connection, so that the supporting ring (11) is manually moved up and down. You can then open and close the umbrella.

[0009]

Embodiments of the present invention shown in the drawings will be described.
1 is a handle, to which a support shaft 2 made of a hollow tube is fixed. A guide groove 3 in the shape of a split groove is formed on one side of the support shaft 2 in the axial direction of the support shaft 2 so as to penetrate inward and outward.

A screw shaft 4 is rotatably supported by bearings 5 and 6 provided on the upper and lower parts of the support shaft 2. An electric motor 7 is built in the handle 1 by forming a cavity portion 1a, and a drive shaft 7a of the electric motor 7 is connected to a base end 4a of the screw shaft 4 so as to rotate integrally therewith. Has been done. Further, a hollow portion 1b is formed in the handle 1 and a dry battery 8 is housed therein. Further, the tip 1c of the handle 1 is detachably screwed, and the tip 1c
By removing c, the lower end of the cavity 1b is opened, and the dry battery 8 can be replaced. 9
Indicates the threaded portion.

The screw shaft 4 is provided with a lifting nut 1
0 is screwed, and the protrusion 10a integrally formed on one side of the lifting nut 10 has a guide groove 3 of the spindle 2.
It is fitted so that it can slide up and down. As described above, the protrusion 10a of the lifting nut 10 is fitted into the guide groove 3, and the lifting nut 10 is provided so as to be vertically movable and non-rotatable. The lifting nut 10 is adapted to be lifted and lowered.

Reference numeral 11 denotes a support ring, which is formed in an end shape as shown in FIG. 2, and both end pieces 11a and 11b thereof have the projection 10a.
The pins 12 are removably inserted between the both end pieces 11a and 11b and the protrusion 10a so that the lifting nut 10 and the support ring 11 are integrally lifted up and down.

A wheel 13 is fixed to the tip of the support shaft 2.
The umbrella frame 14 is attached to this so as to be openable and closable. Reference numeral 15 is a fulcrum, the upper end of which is rotatably connected to the umbrella frame 14 and the lower end of which is rotatably connected to the support ring 11.

Reference numeral 16 is a changeover switch provided on the outer surface of the handle 1 for changing over the electric motor 7 between forward and reverse rotation.
Reference numeral 17 denotes an upper limit switch for controlling the upper limit position of the support ring 11, that is, the opening position of the umbrella. When the support ring 11 rises to the opening position of the umbrella, the support ring 11 comes into contact with the upper limit switch 17 to cause the upper limit. The switch 17 is turned off. Reference numeral 18 denotes a lower limit switch for controlling the lower limit position of the support ring 11, that is, the closing position of the umbrella. When the support ring 11 descends to the umbrella close position, the support ring 11 lowers the lower limit switch 1.
8, the lower limit switch 18 is turned off. Both of these switches 17 and 18 are vertically fixed on the outer peripheral surface of the support shaft 2.

The electric wires to both the switches 17 and 18 are housed in electric wire insertion holes 19 formed at both ends of the support shaft 2, as shown in FIG. The electric motor 7, the battery 8, the changeover switch 16, the upper limit switch 17, and the lower limit switch 18 are wired as shown in FIG. 3. For example, by pushing the changeover switch 16 upward, the electric motor 7 is moved.
Rotates in the normal direction and pushes the selector switch 16 downward to move the electric motor 7 in the reverse direction.

Next, the opening / closing operation of the umbrella will be described. now,
It is assumed that the support ring 11 descends, contacts the lower limit switch 18, the lower limit switch is turned off, and the umbrella is closed.

In this closed state, the changeover switch 16 is pushed upward by the thumb of the hand holding the handle 1 to bring the movable contact points a and b of FIG. 3 into contact with the fixed contact points c and d. 7 rotates normally, and the screw shaft 4 rotates normally.

Then, the lifting nut 10 rises, and the supporting ring 11 integral with this rises. By this rise, the umbrella bone 15 is opened around the support shaft 13 via the support bone 15, and the umbrella is opened. When the umbrella is opened a predetermined amount, the support ring 11 contacts the upper limit switch 17, the upper limit switch 17 is turned off, the electric motor 7 is stopped, and the opened state of the umbrella is maintained. The lowering switch 18 returns to the ON state by the upward movement of the support ring 11, but the circuit is cut off by the changeover switch 16.

Next, when the changeover switch 16 is pushed downward with the thumb in the above open state, the movable contact points a and b contact the fixed contact points d and e, the electric motor 7 rotates in the reverse direction, and the screw shaft 4 rotates in the reverse direction. To do.

Then, the lifting nut 10 descends, and the support ring 11 integrated with the nut 10 descends. By this descent, the umbrella bone 15 is closed around the support shaft 13 via the support bone 15, and the umbrella is closed. When the umbrella is closed in a predetermined manner, the support ring 11 contacts the lower limit switch 18, the lower limit switch 18 is turned off, the electric motor 7 is stopped, and the closed state of the umbrella is maintained. Further, the upper limit switch 17 returns to the ON state by the downward movement of the support ring 11, but the circuit is cut off by the changeover switch 16.

When the dry battery 8 is consumed and needs to be replaced, the dry battery 8 can be replaced by rotating the tip 1c of the handle 1 to remove it. When the dry battery 8 is consumed or the electric motor 7 stops working for some reason, the pin 12 is pulled out. As a result, the lifting nut 10 and the support ring 11 are cut off from each other, and only the support ring 11 can be manually moved up and down to open and close the umbrella.

[0022]

As described above, according to the invention described in claim 1, the opening and closing operations of the umbrella can be automatically performed with one hand on the side holding the umbrella, and the luggage can be held in one hand. It is convenient to open and close while holding it.

According to the second aspect of the present invention, the umbrella can be opened and closed manually even when the electric motor does not operate for some reason, so that it can be used with peace of mind.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a diagram showing a wiring state.

[Explanation of symbols]

1 ... Grip handle 2 ... spindle 4 ... screw shaft 7 ... electric motor 10 ... lifting nut 11 ... spindle 15 ... spindle

Claims (2)

[Claims] 1. A screw shaft is rotatably provided in a support shaft, a lifting nut is screwed onto the screw shaft, a fulcrum is connected to the lifting nut, and the screw shaft is rotated by an electric motor. An umbrella comprising a motor, and a handle having a selector switch for switching the rotation of the electric motor between forward and reverse. 2. A lifting nut and a supporting ring can be connected to each other by disposing a supporting ring on an outer peripheral portion of the lifting nut and connecting the supporting shaft to the supporting ring so that the lifting nut and the supporting ring can be separated from each other. The umbrella according to claim 1, which is connected to the umbrella.