JPH0576313U - Umbrella that can be opened and closed with one hand - Google Patents

Abstract

(57) [Abstract] [Purpose] An umbrella that can be opened and closed with one hand that does not cause relative rotation and wobbling between the inner and outer shafts, reduces friction between the two shafts, and extends the service life. provide. [Structure] In an umbrella that can be opened and closed with one hand, an axial groove is provided on the inner shaft side, and a convex block is provided inside the lower cavity of the outer shaft apex end together with the convex block of the outer shaft and the concave groove of the inner shaft. Depending on the combination, the inner shaft and the outer shaft do not generate relative rotation and wobbling when they are in sliding contact with each other, and one plastic sleeve is fitted to the tip of the inner shaft inside the spring, so the spring The frictional force between the inner shaft and the inner shaft and the inner hole of the upper nest can be reduced, and the whole use can be further smoothly performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a one-handed openable umbrella that can be opened and closed with only one hand.

[0002]

[Prior Art]

 FIG. 5 was previously proposed by one of the inventors of the present application as a conventional example of this type of umbrella [see Japanese Patent Publication No. 61-41201], and the inner shaft 1a and the inner shaft 1a slide smoothly. It is a double shaft composed of the outer shaft 1b. The required number (usually 8) of main bones 2 are movably supported at the upper end of the inner shaft 1a, with one end gathered at a required angle (360 ° / 8 = 45 ° when 8). The required number (usually the same number of 8 main bones 8) of auxiliary bones 4 is at the upper end of the outer shaft 1b at one end at a predetermined angle (when there are 8 main bones, the same number as 45 °). The other ends movably support the main bones 2 at positions 2a near the support position of the inner shaft 1a. 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 is arranged on the upper end portion of the inner shaft 1a so as to provide elastic force between the outer shaft 1b and the inner shaft 1a in a direction to bring the upper end portion of the outer shaft 1b closer to the upper end portion of the inner shaft 1a. ing. An operation button 7a is provided on the grip handle 6a as a locking mechanism for temporarily stopping the mutual sliding of the outer shaft 1b and the inner shaft 1a. When the operation button 7a is pressed, the above-mentioned temporary stop of mutual sliding is released. When the positional relationship between the outer shaft 1b and the inner shaft 1a is changed, the grip shaft 6a is close to the auxiliary handle 6b, and the main bone 2 is closed (first state), the temporary mutual sliding operation is resumed. You can stop.

Normally, when the umbrella is closed, the grip handle 6a is in a position almost in contact with the auxiliary handle 6b. Then, in order to open the umbrella, press the operation button 7a with the finger of one hand while holding the grip handle 6a with one hand, the elasticity of the spring 5 pulls down the inner shaft 1a with respect to the outer shaft 1b. Sliding in the direction, whereby the auxiliary bone 4 acts to push and spread the main bone 2, and the umbrella opens. Although it can be used as it is, when fixing the main bone at the maximum open position in strong wind, etc., the hand holding the umbrella should separate the auxiliary handle 6b at the lower end of the inner shaft 1a from the grip handle 6a. When operated with a finger or the like, the second state shown in FIG. 5 is established, and the mutual sliding of the outer shaft 1b and the inner shaft 1a is temporarily stopped and locked.

To close the opened umbrella, press the operation button 7a with the finger of the hand holding the grip handle 6a. The coil spring 5 causes the tip of the outer shaft 1b to move slightly away from the tip of the inner shaft 1a. The main bone 2 is slightly closed due to the squeezing operation of the auxiliary bone 4 at this time. As described above, since the elasticity of the coil spring 5 is not so strong, in this closed state, the auxiliary handle 6b is pressed against a part of the body to bring the grip handle 6a close to the auxiliary handle 6b. By pulling lightly like this, the main bone is easily closed and the umbrella is closed, and the mutual sliding of the outer shaft 1b and the inner shaft 1a is temporarily stopped. However, in this conventional example, since the position 2a of the auxiliary bone 4 that supports the main bone 2 is located relatively close to the inner shaft 1a (about 7 to 10 cm) when the umbrella is open and in use, when wind is strong, etc. The main bone 2 and the cloth attached to the main bone 2 may become slack and become unstable.

Although the main bone 2 is stabilized by moving the position 2a away from the center, the auxiliary handle 6b extends below the grip handle 6a for a corresponding amount, which makes it inconvenient to use and has an unnatural shape. is there.

In order to eliminate this drawback, what is proposed is shown in FIG. 6 [see Japanese Utility Model Laid-Open No. 1-169116]. This further includes a lateral auxiliary bone 4a in addition to the auxiliary bone 4 in the structure of the conventional example shown in FIG. An outer end of the lateral auxiliary bone 4a movably supports the main bone 2 at a supporting position 2b at a substantially central portion of the main bone 2, and an inner end of the lateral auxiliary bone 4a is movably supported by an inner shaft 1a at a supporting position 4b. Further, the lateral auxiliary bone 4a is movably supported by the upper end of the auxiliary bone 4 at a support position 4c which is about 1/3 of its entire length from the inner end. With such an arrangement, the lateral auxiliary bone 4a is configured to be substantially horizontal as shown in the figure with the main bone 2 completely opened. The spring 5 is shown in a compressed state, and uses the elastic force in the extending direction as the operating force. The upper end of the spring 5 is fixed inside the tip mounting body 8. When the operation button 7a is pushed in the closed state, the spring 5 is still compressed, and the expanding force causes the main bone 2 to start to open, and as shown in FIG. 6, the lateral auxiliary bone 4a. The elastic effect of the spring 5 is strongly exerted in a state in which is substantially horizontal, and the main bone 2 strongly adheres to the cloth. At this time, mutual sliding of the inner shaft 1a and the outer shaft 1b is stopped by the stopper 9b.

A hole for locking when opened may be provided if necessary. Under special conditions, such as when it is made as a golf umbrella, under the conditions of use, it is more stable to provide such a hole in the inner shaft 1a.

[0008]

[Problems to be solved by the device]

 In the conventional example described above, the inner shaft and the outer shaft are designed to fit with each other, and the upper shaft is fixed to the inner shaft, and the upper shaft is fixed to the outer shaft. Since there is no structure that fits with each other, when the umbrella is used, the relative rotation between the inner shaft and the outer shaft and the wobbling occur very easily under the influence of external force or the abnormal use of the user. , It usually does not matter to the situation of use. However, when the umbrella is opened and closed, the umbrella bone can twist very easily and an accident may occur during the opening and closing of the umbrella. Further, in the structure of the conventional example, the spring is directly fitted to the tip above the inner cavity of the inner shaft, and when it opens and closes the umbrella, the expansion and contraction of the spring always causes friction with the tip outer side of the inner shaft. Since both of them are made of metal, they are extremely easy to generate annoying noise. In addition, the surface of the umbrella is easily damaged by long-term friction, and when the umbrella is closed and stood up, the user has the habit of pointing the tip of the umbrella downward, so rainwater flows between the inner shaft and the spring. Corrosion may occur on the tip of the inner shaft and the inside of the spring, shortening the service life of the entire umbrella.

In addition, in the structure of the conventional example, one stopper is provided at an appropriate position on the inner shaft, and when the umbrella is opened, the outer shaft slides along the inner axial direction, and the lower nest projects onto the stopper. Reach the open position when hit. It can perform one positioning action, but when used in practice it produces a fairly large vibration, which is uncomfortable for the user. If the user does not have a firm grip, the umbrella can be released and is quite dangerous.

An object of the present invention is to provide an umbrella that can be opened and closed with one hand, in which relative rotation and wobbling does not occur between the inner shaft and the outer shaft, friction between the two shafts is reduced, and the life is extended. To provide.

[0011]

[Means for Solving the Problems]

 In order to achieve this object, the one-hand openable / closable umbrella of the present invention is the one-handed openable / closable umbrella having the above-described configuration of the related art, in which a groove extending along the axial direction is provided on the inner shaft side and the outer shaft is also provided. There is a convex block inside the lower cavity of the top end that fits with the groove of the inner shaft, and when the outer shaft is installed on the outside of the inner shaft, the outer shaft is fitted into the inner shaft by the fitting of the convex block and the groove. When sliding on the top, it does not cause relative rotation and wobbling, and it is smoother when opening and closing the umbrella, and there is no accident in the opening and closing operation of the umbrella due to twisting of the umbrella bone, and the entire mission life Can be extended. Also, when one plastic sleeve is fitted inside the spring at the tip of the inner shaft and the umbrella is opened and closed, it is necessary to prevent abrasion from occurring on the metal contact surface between the spring and the inner shaft and the inner hole of the upper nest. It is possible to prevent the generation of noise when rubbing with it and to prevent the corrosion phenomenon due to surface abrasion. Furthermore, by providing one cushion seat at the proper position of the inner shaft between the lower nests and providing a cushioning spring, one proper cushioning action is provided to the lower nest when opening the umbrella, which is unnecessary for the whole structure. Since it does not generate any vibration, it can be used easily and it is possible to avoid structural damage due to abnormal vibration.

[0012]

Embodiment FIG. 1 is an external view of a partial structure of an inner shaft 10 and an outer shaft 20 of the present invention, which shows the structural features of the present invention. A concave groove 11 extending along the axial direction is provided on the inner shaft 10 side, and at the same time, a convex block 22 that fits into the concave groove 11 of the inner shaft 10 is provided inside the lower cavity 21 of the outer shaft 20. There is. A plastic sleeve 31 is fitted over the upper nest 15 of the tip 12 of the inner shaft 10. Further, one cushioning seat 50 is provided on the inner shaft 10 between the upper nest 13 and the upper nest 13 of the outer shaft 20, and the cushioning seat 50 is fixed on one inner shaft 10 with a fixing ring 51 and a fixing ring 51. A stopper ring 52 slidably movable on two inner shafts 10 is formed by sandwiching one cushioning spring 53.

Referring to the cross-sectional schematic view of FIG. 2 in which the convex block 22 of the outer shaft 20 and the concave groove 11 of the inner shaft 10 of the present invention are fitted to each other, the concave groove 11 of the inner shaft 10 and the outer shaft 10 are clearly shown. It can be seen that the convex blocks 22 inside 20 are fitted together. When the outer shaft 20 is installed on the outer side of the inner shaft 10, by fitting the convex block 22 and the concave groove 11, when the outer shaft 20 slides on the inner shaft 10, any relative rotation and wobbling will occur. If the umbrella does not open and close, the opening and closing of the umbrella will be smoother, and twisting of the canopy will not occur and the opening and closing operation of the umbrella will not be hindered, so the overall service life can be extended.

According to the present invention, as shown in the structural sketch of the invention of FIG. 3 when the umbrella of the present invention is stored and the structural sketch of the invention of FIG. One spring sleeve 31 is fitted inside the ring 30 to prevent friction between the spring 30 and the inner shaft 10 and the metal contact surface of the inner hole of the upper nest 13 when the umbrella is opened and closed. In addition to preventing noise generated when friction occurs, the corrosion phenomenon due to surface abrasion can be avoided, the whole structure can be made more complete, and the entire umbrella can be The service life of can be extended.

In the one-handed openable / closable umbrella of the present invention, one cushion seat 50 is provided at an appropriate position of the inner shaft 10 between the upper nest 13 and the lower nest 21, and a cushion spring 53 is provided for it. Thus, when the umbrella is opened, the lower nest 21 can be provided with an appropriate cushioning action, and when the umbrella is opened, its outer shaft 20 can slide and move along the inner shaft 10. The nest 21 abuts on the stop ring 50 of the buffer seat 50, and the stop ring 52 is a member that can be slidably moved on the inner shaft 10, and together with this, the stop ring 52 and the fixed ring fixedly mounted on the inner shaft 10. Since one cushioning spring 53 is sandwiched between 51 and 51, it can provide one excellent cushioning effect to the lower nest 21 of the outer shaft 20 and the entire umbrella structure is unnecessary. It does not generate vibration, is easier for the user to use, and structural damage caused by abnormal vibration. One in which it is possible to avoid.

[0016]

[Effect of the device]

 As can be seen from the above description, the configuration of the present invention is an improvement made to the structural defects of the above-mentioned conventional example, and it is possible to provide the user with a better use effect, and to improve the progress and practicality. It has a sex.

[Brief description of drawings]

FIG. 1 is an outline sketch of an inner shaft and an outer shaft partial structure in the present invention.

FIG. 2 is a schematic view of a sectional structure in which a convex block of an outer shaft and a concave groove of an inner shaft are fitted to each other in the present invention.

FIG. 3 is a schematic view of a structure when the umbrella of the present invention is closed.

FIG. 4 is a structural sketch of an umbrella of the present invention when opened.

FIG. 5 is a front view showing a structural example of a conventional one-handed openable umbrella.

FIG. 6 is a front view showing a structural example of a conventional one-handed openable umbrella.

[Explanation of symbols]

 1a Inner shaft 1b Outer shaft 2 Main frame 2a, 2b Support position 4 Auxiliary bone 4a Lateral auxiliary bone 4b, 4c Support position 5 Spring 6a Grip handle 6b Auxiliary handle 7a Operation button 7b Pin tip 8 Tip mount 9a Hole 9b Stopper 10 Inner shaft 11 Recessed groove 12 Tip 13 Upper nest 20 Outer shaft 21 Lower nest 22 Convex block 30 Spring 31 Plastic sleeve 40 Tip mount 50 Buffer seat 51 Fixing ring 52 Stop ring 53 Buffer spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Hisao Yang, No. 40, No. 40, No. 40, 452, Daejiro, Beitou District, Taipei

Claims (3)

[Scope of utility model registration request] 1. A double shaft composed of an inner shaft and an outer shaft that slides smoothly with respect to each other, and one end of each of which is movably supported by a mounting body located at an upper end portion of the inner shaft, with each end gathered at a predetermined angular interval. A required number of main bones, a required number of auxiliary bones, each inner end of which is movably supported at the upper end portion of the outer shaft, gathered at predetermined angular intervals, and each outer end is approximately at the central position of the required number of main bones. And each inner end is movably supported at the upper end position of the inner shaft, and further, at each intermediate position, a required number of lateral auxiliary bones movably supported by the outer ends of the required number of auxiliary bones, and the outer shaft of the outer shaft. A grip handle provided at a lower end portion, an auxiliary handle provided at a lower end portion of the inner shaft, and an upper end portion of the outer shaft between the outer shaft and the inner shaft is close to an upper end portion of the inner shaft. A spring for giving elastic force in the direction of compression, and against the elastic force of the spring A releasable locking mechanism for temporarily stopping the mutual sliding of the outer shaft and the inner shaft in a first state in which the main handle is folded by the action of the auxiliary bone by bringing the grip handle close to the auxiliary handle. , In the 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 to weaken the elasticity of the spring, the mutual sliding of the outer shaft and the inner shaft is temporarily stopped. And a stopper block that fits with the recessed groove of the inner shaft is provided inside the lower cavity of the top end of the outer shaft. When the outer shaft is assembled on the outer side of the inner shaft, the convex block and the concave groove are fitted so that relative rotation and runout do not occur when the outer shaft slides on the inner shaft. One-handed open / closed configured Umbrella. 2. One plastic sleeve is fitted inside the spring at the tip of the inner shaft, so that when the umbrella is opened and closed, between the spring and the inner shaft and at the metal contact surface of the inner hole of the upper nest. The umbrella according to claim 1, wherein the umbrella can be opened and closed so as to prevent friction. 3. A buffer seat is provided at an appropriate position of the inner shaft between the upper and lower nests, and the buffer seat is slidably movable on a fixing ring fixed on the inner shaft on the inner shaft. The one-handed openable umbrella according to claim 1, wherein the retaining ring is configured by sandwiching one buffer spring.