JPS6141201B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an umbrella that can be automatically opened using the elasticity of a spring.

For example, in a conventional so-called one-touch umbrella of this kind, as shown in FIG. At the upper end of the sliding tube 3 on the main shaft 1, there are a predetermined number of auxiliary bones 4 that movably support the main bones 2 in the vicinity of the support positions for the main shaft 1.
A coil spring 5 is provided on the auxiliary bone 4 and the three sliding tubes, which acts to pull the sliding tube 3 toward the upper end of the main shaft 1. There is a grip handle 6 at the lower end of the main shaft 1, and an operation button 7 is located near it, and a protrusion 8 operated by the operation button 7 draws the sliding tube 3 to the grip handle 6 to close the umbrella. Sometimes inserted into hole 9. When the operating button 7 is pressed in the closed state of the umbrella with the protrusion 8 inserted into the hole 9 in this way, the protrusion 8 is removed from the hole 9 and the elasticity of the coil spring 5 is applied to the main axis side ends of the sliding tube 3 and the auxiliary bone 4. As a result, the auxiliary bone 4 opens, the main bone 2 also opens, the sliding tube 3 also rises along the main axis 1, and the umbrella is in the open state with a continuous movement of an instant. Become. At this time, since the elasticity of the coil spring 5 is normally set to be quite strong, the opening action of the main bone 2 is instantaneously executed, and the opening force exerted by the main bone 2 at that time is also relatively large, which makes it possible for close range If there are other people around, there is a risk that they may cause trouble or even cause injury. This risk is especially important for the elderly,
This is especially common when children are involved, and can cause serious trauma if the main bone hits the face. In addition, such an accident can occur when, in the example shown in Figure 1, when closing the umbrella, the user releases the sliding tube 3 with the protrusion 8 incompletely inserted into the hole 9 of the sliding tube 3. may also occur. Moreover, in this type of umbrella, the elasticity of the coil spring 5 is usually quite strong, so it takes more effort than expected to pull the sliding tube 3 back toward the grip handle 6a to close the umbrella. This closing operation requires force and is quite difficult when carrying other luggage such as a bag, package, bag, etc. However, it is possible to operate it with one hand.

The present invention solves the above-mentioned drawbacks of conventional so-called one-touch umbrellas and provides an umbrella that can be opened and closed with one hand and can be opened and closed with only one hand.

The present invention will be explained in detail below.

FIG. 2 shows an embodiment of the present invention, in which the shafts are an inner shaft 1a and an outer shaft 1b that slide smoothly relative to each other.
It is a double axis consisting of A required number (usually 8) of the main bones 2 are movably supported at the upper end of the inner shaft 1a, with one end of each being assembled at a required angle (360°/8=45° in the case of 8). The required number of auxiliary bones 4 (usually the same number of 8 when there are 8 main bones) are attached to the lateral axis 1
Each one end is movably supported at the upper end of b, gathered at a predetermined angle (45 degrees for the same number of main bones when there are eight),
In addition, each other end movably supports the main bone 2 at a position 2a near the support position to the inner shaft 1a.
The gripping handle 6a is provided at the lower end of the outer shaft 1b,
Further, an auxiliary handle 6b is provided at the lower end of the inner shaft 1a. The coil spring 5a is arranged on the upper end of the inner shaft 1a to provide 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. As shown in FIG. 3, it is arranged on the lower end of the inner shaft 1a. In the present invention, as a locking mechanism for temporarily stopping mutual sliding between the outer shaft 1b and the inner shaft 1a, as shown in FIG.
As shown in FIG.
An operating rod 10 is movably supported by a support shaft 11a of a tightening band 11 in the upper end of a, an operating button 7a is arranged at one end of the operating rod, and a pin 8a is arranged at the other end.
As shown, the hole 9a of the inner shaft 1a and the outer shaft 1b
When the pins 8a align with the holes 9b (second state), the action of the spring 12 causes the pin 8a to align with the holes 9a,
b, and mutual sliding between the inner shaft 1a and the outer shaft 1b is temporarily stopped. When the operating button 7a is pressed against the elasticity of the spring 12, the pin 8a is inserted into the hole 9.
a, 9b, and the above-mentioned temporary suspension of mutual sliding is released. Even when the positional relationship between the outer shaft 1b and the inner shaft 1a changes and the hole 9b of the outer shaft 1b matches the hole 9c of the inner shaft 1a (first state), the pin 8
a is inserted into these holes 9b and 9c at the same time, and the above-mentioned mutual sliding can be temporarily stopped.

Next, the operation of the umbrella that can be opened and closed with one hand according to the present invention will be explained.

Normally, when the umbrella is closed, the grip handle 6a is in a position that is almost in contact with the auxiliary handle, and the hole 9 of the outer shaft 1b is
b is the pin 8 at a position that corresponds to the hole 9c of the inner shaft 1a.
a is in the first state inserted into these holes 9b and 9c.

Therefore, in order to open the umbrella, while holding the grip handle 6a with one hand, use the finger of the other hand to press the operation button 7.
When you press a, the pin 8a comes out of the holes 9b and 9c,
Due to the elasticity of the spring 5a, the inner shaft 1a slides in a downward direction with respect to the outer shaft 1b, so that the auxiliary ribs 4 act to push and spread the main ribs 2, and the umbrella opens. In the present invention, the coil spring is weaker than that of conventional one-touch umbrellas, and the main rib stops just before the maximum opening state. 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, a second state is reached in which the hole 9b of the outer shaft 1b and the hole 9a of the inner shaft 1a are aligned, and the pin 8a is inserted into the holes 9a, 9b by the action of the spring 12, and the outer shaft 1b and the inner shaft are connected. Mutual sliding with 1a is temporarily stopped and locked.

To close an opened umbrella, press the operating button 7a with the finger of the hand holding the grip handle 6a, the pin 8a will come out of the holes 9a and 9b, and the tip of the outer shaft 1b will move into the inner shaft due to the action of the coil spring 5a. The main bone 2 is slightly moved away from the tip of the main bone 2 due to the deflating action of the auxiliary bone 4 at this time.
As mentioned above, the elasticity of the coil spring 5a is not so strong, so in this slightly closed state,
For example, if the auxiliary handle 6b is pressed against a part of the body and the grip handle 6a is pulled lightly toward the auxiliary handle 6b, the main bone will be easily closed and the hole in the outer shaft 1b will be closed.
With b aligned with the hole 9c of the inner shaft 1a, the pin 8a is inserted into these 9b and 9c by the action of the spring 12, the umbrella is closed, and the outer shaft 1b and the inner shaft 1a mutually slide. will be temporarily suspended.

Note that a screw-on lid 1 is attached to the upper end of the grip handle 6a.
3 is provided, but this could be of other formats. Any type of locking mechanism other than the one shown can also be used.

In addition, since a conventional technique can be used to use a ring to hold each tip of the main rib 2 to the end of the grip handle 6a in a closed state of the umbrella, illustration thereof is omitted.

As described in detail above, according to the present invention, the operating function part is concentrated at the position of the grip handle, so even if you are carrying a bag or other luggage in one hand, you can easily open and close it with only the other hand. Can be operated. Furthermore, the elasticity of the coil spring can be slightly weakened to avoid the risk of accidents during opening/closing operations, which is extremely effective in practical use.

The present invention can also be applied to an umbrella having a so-called foldable main frame. In this case, for example, if the lower part of both the outer shaft and the inner shaft is inserted inside the upper part, the connection part with the auxiliary bone 4 will not interfere with the expansion and contraction movement of the double shaft.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing an example of a conventional one-touch umbrella.
FIG. 2 is a schematic front view showing an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view showing a partial modification of the embodiment of the present invention, and FIG.
Figures a and b are a partial perspective view and a partial vertical sectional view showing the structure of a locking mechanism used in the present invention. 1...Main shaft, 1a...Inner shaft, 1b...Outer shaft, 2...
Main bone, 2a... Position near the supporting position of the main bone, 3... Sliding tube, 4... Auxiliary bone, 5, 5a... Coil spring, 6, 6a... Gripping handle, 6b... Auxiliary handle, 7, 7a
...Operation button, 8...Protrusion, 8a...Pin, 9,9
a, 9b, 9c...hole, 10...operating rod, 11...tightening band, 11a...support shaft, 12...spring, 13...screwed tube.

Claims (1)

[Scope of Claims] 1. A double shaft consisting of an inner shaft and an outer shaft that slide smoothly against each other, and a required number of movably supported ends of each of which are assembled at a predetermined angular interval at the upper end of the inner shaft. a required number of main bones, each of which is movably supported at one end gathered at a predetermined angular interval at the upper end of the outer shaft, and whose other end movably supports the main bone in the vicinity of the support position to the inner shaft; an auxiliary bone, 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 an upper end of the outer shaft between the outer shaft and the inner shaft. a spring for applying elasticity in a direction that causes the gripping handle to approach the upper end of the inner shaft; The outer shaft and the inner shaft are in a folded first state and a second state in which the gripping handle is moved away from the auxiliary handle and the main bone is expanded by the action of the auxiliary bone so that the elasticity of the spring is weakened. An umbrella that can be opened and closed with one hand and equipped with a releasable locking mechanism that temporarily stops mutual sliding.