JPS6022802Y2 - Automatic tip extension device for three-tiered folding umbrellas - Google Patents

Description

[Detailed description of the invention] This invention passes the proximal end through a long window provided on the upper part of the bridge, and connects the secondary rod connected to the bridge to the proximal end of the leading canal through the crank piece. This invention relates to an automatic bone cleaning device for a three-tiered folding umbrella, which is connected to the bridge and is configured to automatically expand the leading tube by the pulling action of the sub-rod due to the expanding movement of the struts.

In order to make the folded state more compact, the umbrella handle is made to be expandable into three stages, and a tip pipe is provided in the rib mechanism for stretching the umbrella cloth, making it possible to fold the umbrella into three stages. When installing the above-mentioned automatic bone-washing unfolding device for so-called three-fold stacks, the tip tube can be automatically folded in conjunction with the opening operation without having to manually fold and unfold the tip tube before opening. Since it is convenient to be able to unfold and move the umbrella, the automatic bone washing device as described above has been widely used in three-tiered folding umbrellas.

Conventionally, this type of automatic bone washing device has been constructed with a spring interposed between the sub-rod and the crank piece.

The purpose of providing such a spring is to allow the spring to absorb the dimensional difference that occurs when the leading tube is bent while the umbrella is in the closed state, while also absorbing the pull of the secondary rod when the umbrella is opened from the folded state. The purpose is to transmit the action to the crank piece and tip pipe without delay.

However, the force of the spring is the weakest when the umbrella is folded when the umbrella is opened and the umbrella is folded, as the subrod is maximally displaced in one direction of the crank. The deployment movement of the leading tube is sometimes delayed due to the moment inertia of starting from a stationary state.

This kind of delay in the start of deployment of the tip tube is often seen when the opening operation is done too quickly, resulting in the so-called ``ochoco'' (opening state) in which the tip tube is incompletely expanded.

Therefore, this design is a three-stage system that transmits the pulling action of the sub-rod to the crank piece and the tip tube without delay at the time of starting the opening, guarantees the complete expansion of the tip tube, and at the same time does not cause any other inconvenience. A new automatic unfolding device for folding umbrellas,
This is what we are trying to provide.

Regarding the illustrated embodiment, the configuration of the automatic bone washing device according to the present invention will be explained. One embodiment illustrated in FIGS. 1-7 is a so-called topless type triple This relates to an example in which this invention is implemented in a tiered folding Western umbrella.

In Fig. 1-3, reference numeral 1 denotes an umbrella handle that is telescope-like in three stages and is extendable and retractable; an upper potter's wheel 2 is fixed to the upper end of the umbrella handle 1; A cap 3 is provided to be freely slidable up and down, and a handle 4 is fixed to the lower end of the umbrella handle 1.

In the umbrella rib mechanism, the other end of the base tube 5, one end of which is pivotally supported on the upper potter's wheel 2, is pivoted in the middle of the strut 6, and the other end of the base tube 5, which has one end pivoted on the lower potter's wheel 3, is pivoted in the middle of the strut 6. A support bone 8 is provided which is pivoted in the middle of the main rib 7 and has both ends pivoted between one end of the main rib 7 and the middle of the base tube 5, and further has a base end pivoted at the other end or tip of the main rib 7. It is configured such that the tip pipe 9 is also provided.

The four-point linkage mechanism formed by the base tube 5, struts 6, master ribs 7, and struts 8 described above operates in the closed state shown in FIG. 2 (however, in the closed state shown in FIG. In the figure, the umbrella is shown in an inverted position to show that it is being carried while wet.

) when opening the umbrella by moving the lower opening black 3 upward on the umbrella handle 1,
Each of the above umbrella ribs 5. 6. 7.8 is automatically unfolded and rotated from the folded state, and conversely, when closing the umbrella by moving the lower opening black 3 downward on the umbrella handle 1 from the open state shown in FIG. 5. 6. 7.8 is set so that it can be automatically folded and rotated from the unfolded state.

In FIG. 1, F is an umbrella cloth, and in FIG. 2, R is a hanging string attached to the handle 4.

Third. 6. As shown in Fig. 7, a joint metal fitting 10 is fixed to the tip of the master rib 7, and the tip tube 9 has a pin 1 at its base end.
1, it is pivotally supported by the metal joint 10, and is provided with an auxiliary rod 12 for automatically deploying the tip tube 9 when the umbrella is opened.

This secondary rod 12 is stronger than a wire, and its proximal end is folded back into a loop shape, and the proximal end is connected to a long window 13 provided on the upper part of the strut 6.
is passed through the groove of the main rib 7 formed in the groove tube having a U-shaped cross-section, and guided toward the front tube 9.

The auxiliary rod 12 has one end pivotally attached to the proximal end of the leading tube 9 with a pin 14, and is connected to the proximal end of the bone washing 9 via a crank piece 15 provided in the joint hardware 10.

In Fig. 3.6.7, reference numeral 16 denotes a band wrapped around the master rib 7 at the folded end position of the proximal end of the sub-rod 12, and is a necessary element for preventing the sub-rod 12 from slipping off.

As mentioned above in the conventional case, a spring was interposed between the sub-rod 12 and the crank piece 15, but the illustrated western umbrella is not provided with such a spring.
A link piece 17 is provided instead.

This link piece 17 is made by bending one wire so that a closed elongated hole 17a is formed inside, as shown in FIGS. One end is connected to the crank piece 15 by passing through a hole provided in the crank piece 15.

On the other hand, a folded part 12a is provided at the tip of the sub-rod 12, and the folded part 12a is formed using the folded part 12a.
By inserting the sub-rod 12 into the long hole 17a of the link piece 17 at the turning point A, the tip of the sub-rod 12 and the link piece 17
is connected between the other ends.

The length relationship between the sub-rod 12 and the link piece 17 is such that when the tip pipe 9 is in the folded state shown in FIG.
7, the crank piece 15 is set so as to be engaged with the crank piece 15 so as not to be relatively displaceable in the opposite direction.

Further, the length of the link piece 17 or its elongated hole 17a is set to such a length that the sub-rod 12 can always freely move in the direction of the crank piece 17.

Since the embodiment shown in FIGS. 1-7 is constructed as described above, the lower opening black 3 can be moved on the umbrella handle 1 from the folded state of the entire umbrella rib 5-9 shown in FIG. When pushing up to open the umbrella, the base tube 5, the strut 6, the main rib 7, and the strut 8 are moved to expand as described above. When the pulling action is applied, the tip tube 9 is also unfolded from the folded state via the link piece 17 and the crank piece 15, and this unfolding movement of the tip tube 9 is reliably carried out for the following reason.

That is, since the link piece 17 is configured such that when the front pipe 9 is in the folded state, the sub-rod 12 engages with the link piece 17 in such a manner that the crank piece 15 cannot be relatively displaced in the opposite direction. When the expansion starts and a pulling action is applied to the sub-rod 12, the link piece 17 is immediately pulled, and as a result, the umbrella cloth F is folded and the crank piece 15 and the tip pipe 9 are folded.
Regardless of the moment and inertia of starting from a stationary state, the crank piece 15 and the tip tube 9 are started immediately, there is no delay in the start of expansion of the tip tube 9, and complete expansion of the tip tube 9 is ensured. It will be done.

In the open state of the western umbrella, as shown in FIG. 6, the turning point A of the sub-rod 12 is at the upper end position of the link piece 17 or its elongated hole 17a. When closing the umbrella by pulling down on the umbrella handle 1, the base tube 5, the strut 6, the master rib 7, and the support rib 8 are automatically folded and rotated as described above, and the strut 6 is folded and rotated. A pushing action is given to the secondary rod 12 by this.

By this pushing action, the sub-rod 12 is displaced in the direction of the crank piece 15, but the turning point A is moved toward the link piece 17.
Since the link piece 17 can freely move in the direction of the crank piece 17 within the elongated hole 17a, that is, the link piece 17 is designed to allow the sub-rod 12 to freely move in the direction of the crank piece 15. 17, therefore, no pushing action is applied to the crank piece 15, and the tip pipe 9 is kept in the expanded state.

Therefore, after the lower opening clog 3 is pulled down on the umbrella handle 1 to close the umbrella, the turning point A on the sub-rod 12 assumes a position as illustrated in FIG. 7.

In the umbrella fracture folded state shown in FIG. 7, as shown in FIG. The tip of the umbrella 9 is made to face the groove of the handle 4, the tip of the tip tube 9 is secured, and the wet Western umbrella can be carried in an inverted position by holding the hanging string R.

In order to completely fold the western umbrella, the umbrella handle 1 is slightly extended from the state shown in FIG. At this time, the crank piece 15 is moved from the position shown in FIG. 7 to the position shown in FIG. 3, and the link piece 17 accompanies the crank piece 15. Since the turning point A of the sub-rod 17 is relatively displaced to the end of the elongated hole 17a of the link piece 17, the sub-rod 12 is moved relative to the link piece 17, and the crank piece 15
A locking relationship is obtained in which they are engaged so that relative displacement in opposite directions is impossible, that is, in the folded state of the tip tube 9 described above.

The above example relates to an example in which this invention was implemented in a topless type three-tier folding Western umbrella, but this invention is of course applicable to the eighth embodiment.
This method can also be applied to a sliding type three-tiered Western umbrella as illustrated in the figure.

The western umbrella shown in FIG. 8 is provided with a middle opening 20 in addition to a lower opening 3 as a sliding potter on a three-stage telescopic umbrella handle 1, and a rib mechanism has a proximal end on an upper potter 2 similar to the above. The original main rib 21 is pivotally supported by the original main rib 21, the sliding main rib 23 is provided on the original main rib 21 with the proximal end fixed to the slider 22 provided on the original main rib 21 in a sliding manner, and It is constructed from a leading tube 9 whose proximal end is pivoted to a metal joint 10 similar to that described above which is fixed to the leading end of the movable main rib 23.

A brace 6 is provided with both ends pivoted between the lower jaw 3 and the slider 22, and a push rod 24 is provided with both ends pivoted between the middle jaw 20 and the middle of the bridge 6. It is provided.

Since the opening/closing function of the sliding type three-stage folding umbrella shown in FIG. 8 is well known, a description thereof will be omitted. An automatic tube deployment device is provided, which operates in much the same way as in the previous embodiment.

Fig. 8 shows a state in which a wet Western umbrella is carried by holding the hanging string R with the tip of the tip tube 9 facing the groove of the handle 4 when the umbrella is closed and extended. There is.

As is clear from the above explanation, the automatic tip deploying device for the three-stage folding umbrella of this invention is the device described at the beginning, and the sub-rod 12 and the crank piece 15 are connected to the tip tube 9. A link piece 17 that engages the sub-rod 12 in a folded state so as not to be relatively displaceable in the direction opposite to the crank piece 15, and allows the sub-rod 12 to freely move in the direction of the crank piece 15.
As described in detail in the description of the operation of the embodiment, the link piece 27 connects to the sub-rod 12 in the folded state of the tip tube when the opening is started.
Since the auxiliary rod 12 is engaged so as to be displaced at the same time by the pulling action of 2, the expansion motion of the bridge is immediately transmitted to the crank piece 15 and the tip tube 9 via the auxiliary rod 12 and the link piece 17. Therefore, regardless of whether the umbrella cloth is folded or the moment inertia that resists displacement of the crank piece and the tip tube from a resting state, the deployment start of the tip tube is not delayed.
This ensures complete expansion of the cannula.

Since the link piece 17 is designed to allow the sub-rod 12 to freely move in the direction of the crank piece 15, the lower opening black is pulled down on the umbrella handle to close the umbrella. The folding of the tip tube is carried out without any inconvenience because the auxiliary rod 12 is freely displaced in the direction of the crank piece 15 due to the pushing action exerted on the auxiliary rod 12 by the folding rotation of the bridge when the lower mouth cross is pulled down. It's about what you get and what you do.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view showing a three-tier folding western umbrella equipped with an embodiment of this invention in an open state; Figure 3 is a front view showing the main parts of the umbrella in a folded state, Figure 4 is a side view of only the main parts of the umbrella, Figure 5 is an enlarged perspective view of only the main parts of the umbrella, and Figure 6 is an enlarged perspective view of only the main parts of the umbrella. The figure is a front view showing the main part of the western umbrella in the open state, Fig. 7 is a front view showing the main part of the western umbrella in the closed state with the tip extended, and Fig. 8 is a three-tier folding western umbrella that can implement this invention. FIG. 7 is a front view showing the other side in a state where the canopy is extended and the umbrella is carried. 6...Bone, 9...Anterior canal, 10...
...Joint hardware, 12...Spend rod, 12a...
...Folding part, 13...Long window, 15----
--Crank piece, 17... Link piece, 17a.
... Long hole, A ... Turning point.

Claims (1)

[Scope of utility model registration request] The proximal end of the accessory rod is passed through a long window provided on the upper part of the bridge, and the distal end of the accessory rod is connected to the proximal end of the tip tube through the crank piece, and the accessory rod is connected to the base of the support rod by the expansion movement of the supporter. This is an automatic bone cleaning device for a three-stage folding western umbrella, which is configured to automatically expand the tip tube by the pulling action of The auxiliary rod is connected to the crank through a link piece that engages with the crank so that it cannot be relatively displaced in the opposite direction, and that allows the auxiliary rod to freely move in one direction of the crank. Automatic deployment device.