JPH0728766B2 - Automatic opening and closing umbrella - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic opening / closing umbrella, and more particularly to automatically using a restoring force of a coil spring provided inside an umbrella shaft and a spring acting on an umbrella bone. The present invention relates to an automatic opening / closing umbrella configured to open and close an umbrella.

[Conventional technology]

The so-called jump umbrella is widely used, so that the umbrella can be automatically opened by using the restoring force of the spring just by pushing the push button provided near the handle.

In addition, an automatic opening and closing umbrella has been proposed that allows not only the umbrella opening operation but also the umbrella closing operation to be performed automatically, assuming that it is difficult to close the umbrella with one hand and luggage with one hand. Has been disclosed in many.

However, the conventional automatic opening / closing umbrella is a compression coil spring provided in the umbrella shaft and storing a stress necessary for automatic opening / closing. A spring was used to automatically open and close the umbrella.

Therefore, when the spring is strongly compressed, the spring bends and bends in a wavy shape, and the outer circumference of the spring comes into contact with the inner peripheral surface of the umbrella shaft and rubs to cause annoying rubbing noise during operation, and the spring wears quickly. was there.

Also, if a short spring is used to reduce the bending of the spring during compression, the force changes greatly with a slight amount of deformation of the spring, so not only a large force is required for operation but also control becomes difficult. There was also a problem.

[Problems to be solved by the invention]

The present invention has been made to solve the above problems, and an object of the present invention is to open and close an umbrella with a light operation of a finger of one hand, so that the opening and closing operation is stable and reliable. It is an object of the present invention to provide an automatic opening / closing umbrella which has advantages such as no noise during operation and less trouble.

[Means for solving problems]

The above object is to provide an automatic opening / closing umbrella provided with the components described in the following (a) to (m), that is, (a) an outer tube having a handle attached to the lower end and The grip handle side is the bottom. The same shall apply hereinafter.), And a nested umbrella shaft composed of a middle pipe inserted from the upper end of the outer pipe and an inner pipe inserted from the upper end of the middle pipe and having a ridge on its upper end. (B) a lower wheel which is slidably attached to the outer circumference of the outer tube between an open position and a closed position; (c) a middle wheel fixed to the upper outer circumference of the outer tube; ) An upper wheel fixed to the outer periphery of the upper end of the middle tube, and (e) an movably inserted axially inside the umbrella shaft,
The upper end is fixed to the lower end of the inner pipe, and the lower end of the open / close control rod is provided with a hook, and (f) is provided inside the outer pipe, the upper end of which is fixed to the lower end of the middle pipe, and the lower end thereof. Is a tension coil spring fixed near the lower end of the opening / closing control rod, and (g) the inner end (the side closer to the umbrella shaft is the inner side, the far side is the outer side when the umbrella is opened. The same applies below) rotates upward. A freely attached rib, (h) an inner end rotatably attached to the lower rocker, an outer end rotatably connected to an intermediate position of the rib, and (i) an inner end An auxiliary bone rotatably attached to the wheel and having an outer end rotatably connected to an intermediate position of the skeleton; An umbrella closing spring for exerting a force on the grip, and (k) the opening and closing provided inside the handle (10). The hook at the lower end of the control rod can be locked, and when the opening / closing control rod moves toward the handle, it locks the hook at the lower end of the control rod to an open position different from the locked position. When it is moved, an opening / closing control rod locking device that opens the hook portion, and (1) is swingably provided in the handle and can engage with a forming convex portion formed on the outer periphery of the lower wheel at one end. And a hook that has a locking claw, and when the lower rocker moves to the end of movement on the handle side, the locking claw engages with the locking projection of the lower rocker to hold the lower rocker in the closed position. (M) It is provided in the handle so as to be movable between an opening command position, a closing command position and a neutral position between the two positions, and when it is moved to the opening command position, the hook is moved. When the lower lock is released from the lock, and it moves to the umbrella close command position, the above-mentioned opening / closing control rod locking tool opens and closes. And opening and closing operation tool allowed to release the lock of the hook portion of the control rod can be achieved by an automatic umbrella having a.

[Action]

With the above configuration, the stress required for automatic opening and closing is accumulated as a tensile force in the tension coil spring,
At that time, the tension coil spring does not extend straight and come into contact with the inner surface of the umbrella shaft, so the opening / closing operation of the umbrella is stable, no annoying rubbing noise is generated during operation, and there is no wear of the spring or umbrella shaft. Therefore, it is possible to provide an automatic opening / closing umbrella with few failures.

〔Example〕

Hereinafter, the configuration of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a vertical sectional view showing an embodiment of an automatic opening / closing umbrella according to the present invention in a closed state, FIG. 2 is an enlarged sectional view of an essential part of FIG. 1, and FIG. 3 is shown in FIG. 4 is a longitudinal sectional view showing a state in which the umbrella is automatically opened, FIG. 4 is an enlarged sectional view of an essential part of FIG. 3, and FIG. 5 is a longitudinal sectional view showing a state in which the umbrella shown in FIG. 3 is automatically opened and closed. 6, FIG. 6 is an enlarged sectional view of an essential part of FIG. 5, FIG. 7 is an enlarged view of portion A in FIG. 1, FIG. 8 is an enlarged view of portion B in FIG. 1, and FIG. 9 is FIG. Fig. 10 is an enlarged view of the middle A portion, Fig. 10 is an enlarged view of the B portion in Fig. 6, and Fig. 11 is a line C-C in Fig. 4 showing an embodiment of the locking device provided in the grip handle portion. Fig. 12 is a longitudinal sectional view showing the function of one embodiment of the grip handle portion having a safety mechanism for preventing an accidental opening of the umbrella shown in Figs. 12 to 14 in stages. Fig. 16 is an external perspective view of the grip handle shown in the figure. Perspective view of a knob-like sleeve, FIG. 17 is an explanatory diagram showing a preferred embodiment of 閉傘 spring.

In addition, in the present specification, the top of the umbrella is the "top", the side of the handle is "bottom", and the side closer to the umbrella axis when the umbrella is closed is the "inside" side.
The far side is explained as the "outside" side.

In FIGS. 1 to 6, reference numeral 1 designates an outer shaft 2, an inner pipe 3 inserted from the upper end thereof, and an umbrella shaft 5 composed of an inner pipe 4 further inserted from the upper end thereof. A lower wheel which is slidably mounted on the outer circumference of the tube 2, 6 is a middle wheel which is fitted and fixed on the outer circumference of the upper end of the outer tube 2, 7 is an upper wheel which is fixed on the outer circumference of the upper end of the middle tube 3, and 8 is an umbrella. An opening / closing control rod having an upper end fixed to the lower end of the inner pipe 4 and a hook portion 8a formed at the lower end, which is inserted into the shaft 1 so as to be movable in the axial direction, and 9 provided in the outer pipe 2. The upper end is fixed to the lower end of the middle pipe 3, the lower end of which is a tension coil spring fixed near the lower end of the opening / closing control rod 8, 10 is the handle attached to the lower end of the outer pipe 2, and 11 is the inner pipe. 4 is a stud attached to the upper end, 12 is a rib attached to the upper rocker 7 at its inner end, and 13 is its rib. The inner end of which is rotatably attached to the lower wheel 5, and the outer end of which is rotatably connected to the intermediate position of the main rib 12, and 14 has the inner end of which is rotatably attached to the inner wheel 6. , An auxiliary bone whose outer end is rotatably connected to an intermediate position of the skeleton 13, and 15 is the above-mentioned main bone 12, fulcrum 13 and auxiliary bone
An umbrella closing spring for constantly exerting a force in the umbrella closing direction on the umbrella frame composed of 14, and 16 is a hook portion 8a formed inside the handle 10 and formed at the end of the opening / closing control rod 8 on the handle side. When the opening / closing control rod 8 moves toward the handle, the hook portion 8a is locked, and when the opening / closing control rod 8 is slid to the left in the drawing, the end portion 8a of the opening / closing control rod 8 is locked. A lock 17 (see FIG. 2) for releasing the engagement with the lock 17 is a spring that acts between the left end of the lock and the inner wall surface of the handle handle 10a to push the lock 16 to the right in FIG. , 18 are swingably mounted in the handle 10 by a pin 18c, and have locking claws 18a at one end that can lock the locking protrusions 5a of the lower wheel 5, and the lower wheel 5 is an outer tube. The hook 19 that locks the lower lock when it moves to the lower end of the movement of 2 is a pin 19 in the handle 10.
It is attached so as to be swingable by c, and the pressing portion 18b of the hook 18 is pushed when pushing the opening operation portion 19a, and the right end of the locking tool 16 is pushed when pushing the closing operation portion 19b. The operation tool 20 is a spring piece that biases the pressing portion 18b of the hook 18 toward the outside.

Thus, the umbrella shaft 1 of the automatic opening / closing umbrella according to the present invention includes the outer tube 2
The inner pipe 3 is slidably inserted into the inner pipe 3 from the upper end thereof, and the inner pipe 4 is slidably inserted into the inner pipe 3 from the upper end thereof to form the outer pipe 2
Attach the handle 10 to the lower end of the inner pipe 4
The lower roller 5 is mounted on the outer circumference of the outer tube 2 so as to be able to move up and down, the middle roller 6 is mounted on the outer circumference of the upper end of the outer tube 2, and the upper roller 7 is mounted on the outer circumference of the upper end of the middle tube 3. .

Thus, a sufficiently long tension coil spring 9 is accommodated in the umbrella shaft 1, and its upper end is fixed to the lower end of the middle pipe 3 by a fitting 3a provided at the lower end of the middle pipe 3, (see FIG. 1). , Second
(See FIGS. 8, 8 and 10), and its lower end is fixed near the lower end of the opening / closing control rod 8 by a fixing tool 8b.

The tension coil spring 9 is always in a stretched state and is in a state in which it exerts a restoring force that always tries to shrink due to the stress, and is stretched most in the state shown in FIG. Although it is in the most contracted state in the state shown in the figure, it is desirable to still exert the force to contract in the state shown in FIG.

An inner end of a rib 12 is rotatably attached to the upper wheel 7, and an inner end of a skeleton 13 is rotatably attached to the lower wheel 5, and an outer end of the skeleton 13 is an intermediate portion of the rib 12. It is rotatably connected to the position. The inner end of the auxiliary bone 14 is rotatably attached to the intermediate wheel 6, and the outer end of the auxiliary bone 14 is supported by the fulcrum 13.
Is rotatably connected to an intermediate position near the connection point with the main rib.

Thus, a retractable umbrella-closing spring 15 such as a thin coil spring is attached between a portion of the intermediate rocker 6 or the auxiliary bone 14 close to the intermediate rocker and a connecting portion of the main bone of the tip of the supporting bone 13, As a result, all the ribs are pulled toward the umbrella shaft 1, and a force in the closing direction is always applied to the umbrella bone. Therefore, if no external force is applied,
The umbrella frame forms a folded state as shown in FIG. 1 or FIG. 5 by the tensile force of the umbrella closing spring 15.

It should be noted that a set of umbrella bones consisting of the main ribs 12, the support bones 13 and the auxiliary bones 14 is attached to the entire umbrella in an amount of 6 to 10 sets, generally about 8 sets. In order to prevent the drawing from becoming complicated, only two of them are shown. Note that the total tension force of the umbrella closing spring 15 is weaker than the tension force of the tension coil spring 9 in the umbrella shaft 1, and when the umbrella is opened, the tension force of the tension coil spring 9 is the same as that of all the umbrella closing springs. Umbrellas are opened to overcome the pulling force of 15.

In addition to the tension coil spring 9, an opening / closing control rod 8 made of an elongated member such as metal is inserted into the umbrella shaft 1, and the upper end of the opening / closing control rod 8 is fixed to the lower end of the inner pipe 4. To be done. (See FIGS. 7 and 9)
The lower end of the tension coil spring 9 is attached near the lower end of the opening / closing control rod 8 by a fixture 8b. Further, a hook portion 8a is formed at the lower end of the opening / closing control rod 8 so as to be locked by a locking tool 16 provided inside the handle 10. Further, a stopper 8c is attached to an intermediate position of the opening / closing control rod 8 so that the hook portion 8a can be operated as shown in FIG.
Is released from the locking tool 16, the tension coil spring 9 contracts, and the stopper 8c hits and locks the upper end fitting 3a of the tension coil spring 9 provided at the lower end of the middle tube 3.
Further contraction of the tension coil spring 9 is prevented. It is recommended that the shock absorber 3b be attached to the lower surface of the fixture 3a.

Thus, an opening / closing operation mechanism including a locking tool 16, a spring 17, a hook 18, an opening / closing operation tool 19, a spring piece 20 and the like is provided in the handle 10 (see FIG. 2).

As shown in FIG. 11 in detail, the locking tool 16 is made of an E-shaped metal plate having a locking projection 16a at the center,
A spring 17 provided at the left end thereof is urged in the right direction in the drawing, and the right end thereof is at the umbrella closing operation portion 19 of the opening / closing operation portion 19.
It is brought into contact with b. The hook portion 8a at the lower end of the opening / closing control rod 8 has the locking projection 16 of the locking tool 16 pushed rightward by the spring 17 in the state shown in FIGS. 1 to 4.
It is designed to be hooked on a and to be locked on it.

The operation and operation of opening the umbrella from the closed state shown in FIGS. 1 and 2 will be described.

When the umbrella opening operation portion 19a of the opening / closing operation tool 19 provided on the handle 10 is pressed, the opening / closing operation tool 19 rotates about its pin 19c,
The pressing portion 18b of the hook 18 is pushed toward the umbrella shaft side against the spring force of the spring piece 20, so that the locking claw 18a formed at the upper end of the hook 18 separates from the locking projection 5a of the lower wheel 5. .

In such a case, the lower wheel 5 can move upward along the outer tube 2, and the tension of the tension coil spring 9 causes the middle tube 3 (the lower end of which is attached to the upper end of the tension coil spring 9) to be outside. Further drawn into the tube 2, the upper wheel 7 attached to the upper end of the middle tube 3 moves downward together with the inner tube 3 and approaches the inner wheel 6 attached to the upper end of the outer tube 2. However, the middle wheel 6 is the outer tube 2 having the handle 10
It is immovable because it is attached to the upper end of the auxiliary bone 14 and therefore the inner end of the auxiliary bone 14 is immovable. It lifts up against the pulling force, and accordingly, the lower wheel 7 moves upward, and the open umbrella state as shown in FIGS. 3 and 4 is achieved.

On the other hand, when folding the umbrella, the umbrella closing operation portion 19b of the opening / closing operation tool 19 provided on the handle 10 is pushed. When that happens,
The locking tool 16 is pushed to the left side in the figure against the spring force of the spring 17, whereby the hook 8a of the opening / closing control rod 8 locked to the edge of the locking projection 16a of the locking tool 16 is released. , The opening / closing control lot 8 was released from the locking tool 16, and the pulling force of the closing umbrella spring 15 was overcome to pull the inner pipe 3 into the outer pipe 2 (the upper roll 7 is a middle roll. The tension force of the tension coil spring 9 (which was close to 6) is greatly reduced.

In such a case, the ribs 12 and the supporting ribs 13 are pulled toward the umbrella shaft 1 by the contracting force of the closing umbrella spring 15, and the lower wheel 5 moves downward along the outer tube 2. As a result, the umbrella frame is brought into the closed state as shown in FIGS. 5 and 6, and the closed state is achieved only by pushing the closing operation portion 19b of the opening / closing operation tool 19.

At this time, the opening / closing control rod 8 is pulled by the tension coil spring 9
Moves upward due to the contracting force of the opening / closing control rod 8, the inner tube 4 connected to the upper end of the opening / closing control rod 8 also moves upward, and the stopper 8c fixed to the intermediate position of the opening / closing control rod 8 moves the middle tube 3
It stops at the position blocked by the shock absorber 3b attached to the fixture 3b at the lower end of the.

From the state shown in FIGS. 5 and 6, the tension coil spring 9 is stretched to extend the hook portion at the lower end of the opening / closing control rod 8.
To return to the initial state in which 8a is engaged with the locking tool 16 in the handle 10 as shown in FIGS. 1 and 2, hold the handle 10 with one hand and hold the tip of the umbrella on the ground or By pressing against the wall, the inner tube 4 is resisted against the spring force of the tension coil spring 9.
Should be pushed into the middle tube 3. At that time, the hook portion 8a at the lower end of the opening / closing control rod 8 is locked by the locking tool 16 in the handle 10.
Further, the locking claw 18a of the hook 18 is the locking protrusion 5a of the lower wheel 5.
Then, the umbrella-closed state as shown in FIGS. 1 and 2 is restored.

Therefore, if you press the opening operation portion 19a of the opening and closing operation portion 19 again,
The umbrella will open again automatically.

In this way, by simply operating the opening / closing operation tool 19 provided on the handle 10 with one finger of the hand, the upper coil 7 is moved by the action of the tension coil spring 9 in the umbrella shaft when the umbrella 6 is opened.
When the umbrella is closed, the umbrella spring is closed by the action of the umbrella closing spring 15 so that the upper wheel 7 is separated from the middle wheel 6, and the opening / closing operation of the umbrella is automatically performed.

Figures 12 to 16 show the tip of the tip of the rib 12 when the umbrella is closed.
The structure of the handle is shown in which the 12a are bundled and a safety mechanism is provided to prevent the umbrella from being closed carelessly when the umbrella is opened or operated.

That is, a cylindrical knob 100 having a tip holding function and a locking function is attached to the outer periphery of a handle having the same internal configuration as that of the above embodiment so as to be vertically movable, as shown in FIG. The dew point 12a is held when the knob 100 is pushed up. A pair of stopper pins 100b are formed on the inner surface of the knob 100 as shown in FIG.
In order to prevent the umbrella closing operation portion 19b of the opening / closing operation tool 19 from being inadvertently pressed and thus the umbrella closing operation is inadvertently performed in the umbrella opening state as shown in FIG. 4 and FIG. 4 or during the umbrella opening operation. It has become. Further, a part of the side wall of the knob 100 is cut out to form a slot 100a for exposing the opening / closing operation tool 19 of the handle.

Then, the operation of this safety mechanism will be explained as follows.
In the closed state as shown in the figure, when the knob 100 is pulled down by a slight amount, the dew point 12a is released as shown in FIG.
When the umbrella opening operation portion 19a of the opening / closing operation tool 19 is pushed in this state, the locking claw 18a of the hook 18 is disengaged from the locking projection 5a of the lower wheel 5, and the lower wheel 5 rises along the outer tube 2. An open state similar to that shown in FIGS. 3 and 4 is achieved. At this time, the stop projection 19d provided at the lower end of the umbrella closing operation portion 19b of the opening / closing operation tool 19 is in contact with the stopper pin 100b of the knob 100,
Even if the umbrella closing operation portion 19b of the opening / closing operation tool 19 is inadvertently pushed in this state, the umbrella closing operation portion 19b does not have the stopper pin 1
It is not blocked by 00b and pushed in, which prevents accidental closing movement.

Next, as shown in FIG. 14, when the knob 100 is further pulled down, the stopper pin 100b releases the locking action of the opening / closing operation tool 19 on the umbrella closing operation portion 19b, and the closing operation portion 19b is released.
By pressing, the locking tool 16 moves to the left in the figure, the engagement of the opening / closing control rod 8 with the hook portion 8a is released, and the opening / closing control rod 8 is pulled up by the action of the tension coil spring 9. Also, the automatic umbrella closing state as shown in FIG. 6 is achieved.

In this way, the stopper pin 100b of the knob 100 and the umbrella closing operation unit 1
By providing the stop projection 19d at the lower end of 9b, a safety device is provided which prevents an inadvertent transition from the open state to the closed state.

Incidentally, as shown in FIG. 15, the opening operation part of the opening / closing operation tool 19.
It is recommended that the outer surfaces of 19a and the closing operation portion 19b be drawn with symbols indicating the opened state and the closed state so that the user can easily understand them.

Finally, a preferred embodiment of the umbrella closing spring 15 mounted between the umbrella bones for performing the umbrella closing operation will be described with reference to FIG.

In the embodiment shown in FIG. 1 to FIG. 6, both ends of the closing umbrella spring 15 are formed in a ring shape, and these ring portions are attached to the connecting portion between the ribs 12 and the supporting ribs 13 and the intermediate rocker 6, respectively. However, as shown in FIG. 17, the radius of the coil of the coil spring 15 is reduced at a portion within a predetermined length from one end or both ends of the closing umbrella spring 15 to form the narrow portion 15a, and the narrow portion 15a. The end side is housed in the U-shaped groove of the U-shaped cross-section of the rib 12 and / or the auxiliary bone 14, and the rib 12 is located at a position corresponding to the cut portion 15a of the coil spring.
Alternatively, it is recommended that the auxiliary bone 14 be pushed and bent inwardly to form the narrowed portion 12a and to hold the end portion of the coil spring. With this configuration, the work of attaching the closing umbrella spring can be simplified.

〔The invention's effect〕

Since the present invention is configured as described above, according to the present invention, the opening / closing operation of the umbrella is stable, no annoying rubbing noise is generated during operation, there is no wear of the spring or the umbrella shaft, and there are few failures. It is possible to provide an automatic opening and closing umbrella.

Note that the present invention is not limited to the above embodiments,
For example, fixing to the middle pipe of the tension coil spring and the opening / closing control rod, the locking means of the hook portion at the lower end of the opening / closing control rod provided in the handle and the opening / closing operation tool, etc., can be appropriately modified in design. Therefore, within the scope of the object of the present invention, the present invention covers all the modified embodiments which can be easily conceived by a person skilled in the art from the above description.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an automatic opening / closing umbrella according to the present invention in a closed state, FIG. 2 is an enlarged sectional view of an essential part of FIG. 1, and FIG. 3 is shown in FIG. Fig. 4 is a longitudinal sectional view showing the state in which the umbrella is automatically opened, Fig. 4 is an enlarged sectional view showing the main part of Fig. 3, and Fig. 5 is a longitudinal sectional view showing the state in which the umbrella shown in Fig. 3 is automatically closed. 6, FIG. 6 is an enlarged sectional view of an essential part of FIG. 5, FIG. 7 is an enlarged view of portion A in FIG. 1, FIG. 8 is an enlarged view of portion B in FIG. 1, and FIG. 9 is FIG. FIG. 10 is an enlarged view of the middle A portion, FIG. 10 is an enlarged view of the B portion in FIG. 6, and FIG. 11 is a CC line in FIG. Fig. 12 to Fig. 14 are stepwise longitudinal sectional views showing the function of one embodiment of the grip handle portion having a safety function for preventing accidental opening of the umbrella, and Fig. 15 is a sectional view Fig. 16 is an external perspective view of the grip handle shown in Fig. 12, and Fig. 16 is Perspective view of a knob-like sleeve, FIG. 17 is an explanatory diagram showing a preferred embodiment of 閉傘 spring. 1 …… Umbrella shaft 2 …… Outer tube 3 …… Middle tube 4 …… Inner tube 5 …… Lower wheel 6 …… Middle wheel 7 …… Upper wheel 8 …… Opening / closing control rod 8a …… Hook 8b …… Fixed Tool 8c …… Stopper 9 …… Tension coil spring 10 …… Grip handle 11 …… Steep 12 …… Main bone 13 …… Support bone 14 …… Auxiliary bone 15 …… Closed spring 16 …… Locking tool 17 …… Spring 18 …… Hook 18a …… Locking claw 18b …… Pressing part 19 …… Opening / closing operation tool 19a …… Opening umbrella operating part 19b …… Umbrella closing operating part 19c …… Axis fulcrum 19d …… Stop projection 20 …… Spring piece 100 …… Knob 100a …… Slot 100b …… Stopper pin

Claims (4)

[Claims] 1. An automatic opening / closing umbrella provided with the components described in the following (a) to (m). (A) An outer tube (2) having a handle (10) attached to the lower end (the umbrella stone side is up and the handle side is down. The same applies hereinafter),
Nested umbrella shaft composed of a middle pipe (3) inserted from the upper end of the outer pipe (2) and an inner pipe (4) inserted from the upper end of the middle pipe (3) and having a ridge (11) at its upper end (1). (B) A lower roller (5) slidably attached to the outer circumference of the outer tube (2) between an open umbrella position and a closed umbrella position. (C) A middle wheel (6) fixed to the outer periphery of the upper end of the outer tube (2). (D) An upper roller (7) fixed to the outer periphery of the upper end of the middle pipe (3). (E) An opening / closing operation in which the umbrella shaft (1) is movably inserted in the axial direction, the upper end thereof is fixed to the lower end of the inner pipe (4), and the lower end thereof has a hook portion (8a). Control rod (8). (F) A tension coil spring (9) provided in the outer pipe (2), the upper end of which is fixed to the lower end of the middle pipe (3) and the lower end of which is fixed near the lower end of the opening / closing control rod (8). . (G) A rib (12) whose inner end (the one closer to the umbrella shaft when the umbrella is opened is the inner side, and the far side is the outer side. The same applies hereinafter) rotatably attached to the upper wheel (7). (H) A fulcrum (13) having an inner end rotatably attached to the lower wheel (5) and an outer end rotatably connected to an intermediate position of the rib (12). (I) An auxiliary bone (14) whose inner end is rotatably attached to the center wheel (6) and whose outer end is rotatably connected to an intermediate position of the fulcrum (13). (J) An umbrella closing spring (15) for constantly exerting a force in the umbrella closing direction on the umbrella bone composed of the main rib (12), the support bone (13) and the auxiliary bone (14). (K) The hook portion (8a) at the lower end of the opening / closing control rod (8) provided inside the handle (10) can be locked,
When the opening / closing control rod (8) moves toward the handle, the hook portion (8a) at the lower end is locked, and when it is moved to an open position different from the locked position, the hook portion (8a) Opening / closing control rod locking device (16) that opens 8a). (1) It has a locking claw (18a) that is swingably provided in the handle (10) and that can engage with a locking projection (5a) formed on the outer periphery of the lower lock (5) at one end. A hook (18) for holding the lower wheel in the closed position by engaging the locking claw with the locking projection of the lower wheel when the lower wheel (5) moves to the end of movement on the handle side. (M) The grip pattern (10) is movably provided between the opening command position, the closing command position, and the neutral position between the two positions, and when moved to the opening command position, Opening / closing operation to unlock the hook (8a) of the opening / closing control rod by the opening / closing control rod locking tool (16) when the lower lock is unlocked by the hook and moves to the umbrella closing command position. Ingredients (19). 2. The opening / closing control rod locking device (16) comprises a substantially E-shaped member (16) which is spring-biased toward the center in the handle, and has a locking projection at the center thereof. (16a) locks the hook part (8a) of the opening / closing control rod (8) and pushes the umbrella closing operation part (19b) of the opening / closing operation tool (19) to cause the locking tool (16) to grip The automatic opening / closing umbrella according to claim 1, wherein the opening / closing control rod (8) is configured to be disengaged from the hook portion (8a) of the opening / closing control rod (8). 3. A knob (100), which is movable up and down, is attached to the outer periphery of the handle (10), and the inner surface of the knob is
When the knob is at the upper side, the stopper operation (19b) of the opening / closing operation tool (19) is prevented from being pushed, and when the knob is moved downward, the stopper pin (100
The automatic opening / closing umbrella according to claim 1, wherein b) is provided. 4. The umbrella spring (15) has a cutout portion (15a) inside a predetermined length from one end or both ends thereof, and a region from the cutout portion to the end portion has a U-shaped cross section. The automatic opening / closing according to claim 1, wherein the side wall of the umbrella frame is pushed inward at a portion of the sidewall of the umbrella frame and bent to inwardly fix one or both ends of the umbrella closing spring (15) to the umbrella frame. umbrella.