JPH0522090Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field of the invention) This invention relates to an umbrella that can be opened automatically using the elasticity of a spring, and in particular can be opened and closed with only one hand. This relates to an umbrella that can be opened and closed with one hand.

(Prior art and its problems) Fig. 5 shows a conventional example of this type of umbrella, which was previously proposed by the inventor of the present invention, in which the shafts are composed of an inner shaft 1a and an outer shaft 1b that slide smoothly on each other. It is a double axis. The required number (usually 8) of the main bones 2 have one end attached to the upper end of the medial axis 1a at the required angle (in the case of 8)
They are movably supported and assembled at intervals of 360°/8=45°. The required number of auxiliary bones 4 (when there are 8 main bones, usually the same number of 8 bones), each one end of which is at a predetermined angle to the upper end of the lateral axis 1b (when there are 8 main bones, the same number as the main bones, 45 degrees)
They are assembled at intervals and movably supported, and each other end supports the main bone 2 at a position 2a near the support position to the inner shaft 1a.
Each is movably supported. The grip handle 6a is
Provided at the lower end of the outer shaft 1b, and the auxiliary handle 6b
is provided at the lower end of the inner shaft 1a. The coil spring 5 applies elasticity between the outer shaft 1b and the inner shaft 1a in a direction that brings the upper end of the outer shaft 1b closer to the upper end of the inner shaft 1a.
It is located on the upper end of a. An operation button 7a is provided on the grip handle 6a as a locking mechanism for temporarily stopping mutual sliding between the outer shaft 1b and the inner shaft 1a. When this operation button 7a is pressed, the above-mentioned temporary suspension of mutual sliding is canceled. When the positional relationship between the outer shaft 1b and the inner shaft 1a changes and the gripping handle 6a approaches the auxiliary handle 6b and the main bone 2 is closed (first state), the above-mentioned mutual sliding is temporarily stopped again. can do.

Normally, when the umbrella is closing, the grip handle 6a is in a position that is almost in contact with the auxiliary handle 6b. Therefore, in order to open the umbrella, when one hand holds the grip handle 6a and presses the operating button 7a using the finger of the other hand, the inner shaft 1a is pulled down with respect to the outer shaft 1b by the elasticity of the spring 5. As a result, the auxiliary ribs 4 act to push and spread the main ribs 2, and the umbrella opens. Although it can be used as is, when fixing the main frame at the maximum open position in strong winds, etc., use the fingers of the hand holding the umbrella to pull the auxiliary handle 6b at the lower end of the inner shaft 1a away from the grip handle 6a. When operated, the second state as shown in FIG. 5 is achieved, and the mutual sliding between the outer shaft 1b and the inner shaft 1a is temporarily stopped, resulting in a locked state.

When closing an opened umbrella, press the operation button 7a with the finger of the hand holding the grip handle 6a, and the tip of the outer shaft 1b will be moved to the inner shaft 1a by the action of the coil spring 5.
The auxiliary bone 4 at this time is moved slightly away from the tip of the
Due to the deflation action, the main bone 2 moves in a direction in which it is slightly closed. As mentioned above, the elasticity of the coil spring 5 is not very strong, so in this slightly closed state, for example, the auxiliary handle 6b may be pressed against a part of the body, and the grip handle 6a may be moved closer to the auxiliary handle 6b. If you pull it lightly, the main bone will easily close and the umbrella will be in the closed state, and mutual sliding between the outer shaft 1b and the inner shaft 1a will be temporarily stopped.

In the conventional example described above, the position 2a of the auxiliary rib 4 that supports the main rib 2 when the umbrella is open is located relatively close (about 7 to 10 cm) to the inner axis 1a, so it can be used when there is a strong wind. In this case, the main frame 2 and the cloth attached to it may become sagging, resulting in instability.

By moving this position 2a away from the center, the main bone 2
is stable, but there is a drawback that the auxiliary handle 6b extends downward by that much longer than the gripping handle 6a, making it inconvenient to use and having an unnatural shape.

(Purpose of the invention) The present invention is to provide an umbrella that can be opened and closed with one hand and can provide a stable feeling of use even in strong winds by eliminating the above-mentioned drawbacks of the conventional umbrella.

(Structure of the invention) In order to achieve this purpose, the umbrella that can be opened and closed with one hand of the invention has a double shaft consisting of an inner shaft and an outer shaft that slide smoothly against each other, and a mounting mounted on the upper end of the inner shaft. A required number of main bones, each of which has one end assembled at a predetermined angular interval and movably supported on the body, and a required number of auxiliary bones, each of which has one inner end assembled at a predetermined angular interval and movably supported at the upper end of the outer shaft. and each outer end movably supports approximately the center position of the required number of main bones, each inner end movably supports the upper end position of the inner shaft, and furthermore, each of the inner ends movably supports the outer end of the required number of auxiliary bones at each intermediate position. A required number of movably supported lateral auxiliary bones, a grip handle provided at the lower end of the outer shaft, an auxiliary handle provided at the lower end of the inner shaft, and movable support for the inner end of the lateral auxiliary bones. an elasticity disposed along the distal end of the inner shaft so as to act between the upper end position of the inner shaft and the mounting body, and in a direction to bring the upper end of the outer shaft closer to the upper end of the inner shaft; a spring provided to give the gripping handle close to the auxiliary handle against the elasticity of the spring, and the main bone is folded by the action of the auxiliary bone in the first state. and a releasable locking mechanism for temporarily stopping mutual sliding of the inner shaft; and a releasable locking mechanism for temporarily stopping the mutual sliding of the inner shaft; The present invention has a structure including a stopper that temporarily stops mutual sliding between the outer shaft and the inner shaft in the state shown in FIG.

(Example) The present invention will be explained in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which the structure of the conventional example shown in FIG. 5 is further provided with a transverse auxiliary bone 4a in addition to the auxiliary bone 4. This lateral auxiliary bone 4
The outer end of a supports the main bone 2 movably at a support position 2b approximately in the center of the main bone 2, and the inner end supports the inner shaft 1a.
It is movably supported at a support position 4b. Furthermore, the lateral auxiliary bone 4a is 1/3 of its total length from the medial end.
It is movably supported by the upper end of the auxiliary bone 4 at the support position 4c. With this arrangement, the lateral auxiliary bone 4a has a configuration in which the main bone 2 is completely opened and becomes substantially horizontal as shown in the figure. The spring 5 is located at the above-mentioned support position 4b at the upper end of the inner shaft 1a.
and the tip attachment body 8.
The spring 5 is disposed along the tip of the spring 5a, and in the state shown in FIG. 1, the spring 5 is in a slightly compressed state.

As shown in FIG. 1, when the main bone 2 is closed from an open state, the gripping handle 6a is operated with a stroke that brings the gripping handle 6a close to the auxiliary handle 6b while the auxiliary handle 6b is in contact with a part of the body such as an important part. do. This results in
Since the upper end of the inner shaft 1a is pushed into the tip fitting 8, the support position 4b also approaches the tip fitting 8, and the spring 5 is compressed. When a certain compression force is applied to this spring 5, the tip of the inner shaft 1a becomes connected to the tip attachment body 8 through the compression force, and thereafter the grip handle 6a is brought closer to the auxiliary handle 6b. The stroke is mainly [closing movement of the main bone 2 via the auxiliary bone 4 and the lateral auxiliary bone 4a]
It will affect. Therefore, the closing operation of folding the main bone 2 can be performed with a relatively light operating force as shown in FIG. 2, and the hole 9 at the lower end of the inner shaft 1a
When the position a matches the position of the tip 1b of the operation button 7a attached to the grip handle 6a, the closing operation is completed by engagement between the two. In this first folded state, the largest compressive force is applied to the spring 5.

FIG. 2 shows the situation immediately after the tip end 7b of the pin comes out from the hole 9a when the operation button 7a is pressed in the closed state. At this time, the spring 5 is still sufficiently compressed, and the expanding force moves the support position 4b at the upper end of the inner shaft 1a away from the tip attachment body 8, so that the lateral auxiliary bone 4a uses the support position 4c as a fulcrum. and the main bone 2 via the support position 2b.
begins to open with a gentle movement, and when it finishes opening as shown in Fig. 1, that is, in the second state where the lateral auxiliary bones 4a are almost horizontal, the elastic effect of the spring 5 is strongly exerted, and the main bone 2 is tightly adhered to the cloth. do. At this time, mutual sliding between the inner shaft 1a and the outer shaft 1b is stopped by the stopper 10. In this second state,
The spring 5 is in a slightly compressed state, thereby stably maintaining the open state of the main rib 2, and there is no problem in using the umbrella.

Also, a hole for locking when opened may be provided if necessary. Under special circumstances, such as when it was created as a golf umbrella, under the conditions of use,
Providing such a hole in the inner shaft 1a increases the sense of stability.

However, during the closing operation, it is necessary to press the operation button 7a.

3a and 3b show other configuration examples of the gripping handle 6a and the auxiliary handle 6b, and FIG. 3a shows the L shown in FIGS. 1 and 2.
This is a case where a bar-shaped auxiliary handle 6b is used instead of the letter shape, and FIG. 3b shows an example of the configuration when a disc-shaped auxiliary handle 6b is used.

4a and 4b show another example of the stopper 10. In FIG. 4a, the stopper 10 is installed at the upper end of the outer shaft 1b and operates to block the inner end of the transverse supplementary bone 4a. Also, in Fig. 4b, stopper 1
0 is installed in the tip attachment body 8, and is configured to prevent the inner shaft 1a from descending at the upper end of a long groove 11 provided at the upper end of the inner shaft 1a.

(Effects of the invention) As explained in detail above, according to the invention,
By operating the operation button 7a, the main bone 2 can be opened with a gentle movement, and since a lateral auxiliary bone is provided outside the auxiliary bone 4, the elasticity of the spring 5 is reduced when the main bone 2 is opened. It acts greatly as a tension force on the main bone 2, and a stable state of tension can be obtained. Moreover, since the elasticity acting on the inner shaft of the spring 5 when closing the main bone is weak,
The main bone can be easily closed with only one hand while the auxiliary handle 6b is pressed against the waist or the like. Therefore, according to the present invention, it is possible to realize an umbrella that can be opened and closed with one hand and is extremely easy to use, and has great practical effects.

[Brief explanation of the drawing]

Figure 1 is a schematic front view including a cross section showing the umbrella according to the present invention in an open state, Figure 2 is a schematic front view including a cross section showing the umbrella according to the present invention in a closed state, and Figures 3a and b are the handle portions of the umbrella according to the present invention. FIGS. 4a and 4b are schematic cross-sectional views showing other structural examples of the stopper used in the present invention, and FIG. 5 is a schematic front view showing a conventional structural example. 1a...Inner axis, 1b...Outer axis, 2...Main bone, 2a, 2b...Support position, 4...Auxiliary bone, 4
a... Lateral auxiliary bone, 4b, 4c... Support position, 5...
...Spring, 6a...Gripping handle, 6b...Auxiliary handle, 7a...Operation button, 7b...Pin tip,
8... Tip mounting body, 9a... Hole, 10... Stopper, 11... Long groove.

Claims (1)

[Claims for Utility Model Registration] A double shaft consisting of an inner shaft and an outer shaft that slide smoothly against each other, and one end of each of which is assembled at a predetermined angular interval on a mounting body located at the upper end of the inner shaft and is movable. a required number of supported main bones; a required number of auxiliary bones whose inner ends are assembled at predetermined angular intervals at the upper end of the outer shaft and are movably supported; and each outer end of the required number of main bones. a required number of lateral auxiliary bones movably supported at substantially central positions, each inner end movably supported at an upper end position of the inner shaft, and further movably supported at each intermediate position by outer ends of the required number of auxiliary bones; a gripping handle provided at the lower end of the outer shaft; an auxiliary handle provided at the lower end of the inner shaft; and the upper end position of the inner shaft movably supporting the inner end of the lateral auxiliary bone and the mounting body. a spring disposed along the tip of the inner shaft so as to act between the ends of the inner shaft and providing elasticity in a direction to bring the upper end of the outer shaft closer to the upper end of the inner shaft; Releasing to temporarily stop mutual sliding of the outer shaft and the inner shaft in a first state in which the main bone is folded by the action of the auxiliary bone by bringing the gripping handle closer to the auxiliary handle against elasticity. a locking mechanism capable of locking the outer shaft and the inner shaft in a second state in which the gripping handle is moved away from the auxiliary handle, the main bone is expanded by the action of the auxiliary bone, and the elasticity of the spring is weakened; An umbrella that can be opened and closed with one hand and equipped with a stopper that temporarily stops sliding.