JPS6238961B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a locking structure for a lower potter's wheel of an umbrella, that is, a locking structure between an umbrella shaft and a lower potter's wheel.

As is well known, the umbrella under the potter's wheel (hereinafter simply referred to as the potter's wheel) is slidably fitted onto the umbrella shaft, and supports one end of a number of supporting bones so as to be movable up and down along the umbrella shaft. At the same time, when the umbrella is opened, its lower end is hooked onto a claw member called an upper reel provided on the upper part of the umbrella shaft, thereby maintaining the umbrella in the open state.

Therefore, the potter's wheel and top-hajiki (in this specification, the stone end of the umbrella is referred to as the upper side,
The handle will be explained with the grip handle as the bottom side. ) The upper repellent member, which protrudes above the outer periphery of the umbrella shaft due to a spring mechanism inside the umbrella shaft, has a substantially triangular shape in which the amount of protrusion gradually increases from the lower end to the upper end. When the potter's wheel is pushed up along the umbrella shaft when umbrella is being used, the upper hatching member is pushed into the umbrella shaft by the inner circumferential edge of the upper end of the potter's wheel, so the potter's wheel can pass through the upper hatching part, but the lower end of the potter's wheel passes through the upper hatching part. When finished, the upper reel will protrude onto the canopy shaft again by the spring mechanism, and even if the potter's wheel tries to descend, its lower end will catch on the upper end of the upper reel and will be blocked, thereby locking the potter's wheel and the upper reel. is becoming more and more common. Therefore, in order to close the umbrella, it is necessary to press down the upper hatch with the thumb and pull down the potter's wheel, but the spring force is quite strong and the direction in which it is pressed cannot be specified. This required some skill and was inconvenient.

The present invention was made in order to solve the above-mentioned problems, and its purpose is to connect the potter's wheel and the umbrella shaft by simply moving the potter's wheel up and down without pressing the repellent when opening and closing the umbrella. To provide a convenient umbrella which can be automatically locked and released and can be opened and closed easily and quickly.

Therefore, the gist of the present invention is to provide a retaining hole formed in the umbrella shaft, a potter's wheel tube body that is formed integrally with the potter's wheel and is fitted into the potter's wheel so as to be slidable up and down along the umbrella shaft, and The key member has a protruding part that is housed in a hollow hole formed in the tube body and projects outwardly and inwardly, and the inwardly protruding part is formed so as to be able to fit into a stopper hole formed in the umbrella shaft. , an outer tube that is fitted onto the outer periphery of the potter's wheel body so as to be able to slide slightly up and down, and has a window hole through which the outward protrusion of the key member can pass, and when the umbrella is opened, the outer tube is When you hold the potter's wheel and push it upwards, when the potter's wheel reaches the position of the stop hole formed in the upper part of the umbrella shaft, the lower side of the window hole of the mantle tube will touch the inclined outer wall surface of the outward protrusion of the key member. act to push the key member inward, and as a result, the inward protrusion of the key member is inserted into the stopper hole of the umbrella shaft, thereby fixing and maintaining the open state of the umbrella, and when closing the umbrella, When the mantle tube is held and the lever is pulled down, the upper side of the window hole of the mantle tube acts on the inclined inner wall surface of the outwardly protruding portion of the key member, pushing the key member outward, and pushing the key member outward. Accordingly, the inward protruding portion of the key member is pulled out from the retaining hole of the umbrella shaft, and the potter's wheel is pulled down to the user's hand to close the umbrella.
With the configuration described above, the umbrella can be opened and closed, and the potter's wheel can be locked and released by simply holding the mantle tube and moving the potter's wheel up and down, without pressing the repellent member with the thumb like in the past. It's something you get.

The details of the configuration of the present invention will be explained below with reference to the drawings.

Fig. 1 is a perspective view showing the appearance of one embodiment of the umbrella potter's wheel locking structure according to the present invention, Fig. 2 is an exploded perspective view thereof, and Figs. 3 and 4 are diagrams showing the functions thereof. This is a partially cutaway view. In each drawing, the upper side is close to the tip of the umbrella, or the tip, and the lower side is close to the handle. In addition, the same reference numerals in each figure indicate the same components.

In each figure, 1 is a potter's wheel that is slidably fitted into the umbrella shaft 2, 11 is a potter's wheel tube integrally fixed to the potter's wheel 1, and 12 is a potter's wheel tube 11.
3 is a key member fitted into the hollow hole; 31 is an inward protrusion that protrudes inward on the key member; 32 is an inward protrusion on the key member; The outwardly protruding portions 33, 33 are inward inclined surfaces that gradually descend from the outside toward the inside on the inner wall surface of the outwardly protruding portion 32; Reference numeral 41 indicates a window hole formed in the peripheral wall of the mantle tube 4 so that the outwardly protruding portion 32 of the key member 3 housed in the hollow hole 12 can pass therethrough, and reference numeral 42 indicates a window hole through which the key member 3 is curved inwardly and outwardly. 43 are cam protrusions provided at both corners of the upper side of the window hole 41;
This is the lower side of 1.

When assembling these, the key member 3 is fitted into the hollow hole 12 of the potter's wheel body 11, and the outer tube 4 is fitted on the outside thereof, so that the outward protrusion 32 of the key member fits into the window hole of the outer tube 4. 41, and then the whole is fitted onto the umbrella shaft 2. In such a case, the key member 3 may be slightly curved inwardly and outwardly, but the same-shaped hollow hole 12
Since it is accommodated in the potter's wheel tube body 11, it cannot move relative to the potter's wheel tube body 11 in the axial direction. Further, since the outer protrusion 32 of the key member 3 is fitted into the window hole 41 of the outer tube 4, it can be slid slightly up and down with respect to the potter's wheel tube body 11, but it will not fall off. Therefore, if you move the mantle tube 4,
The potter's wheel 1 is also being moved along with this.

The function of the locking structure configured as above will be explained with reference to FIGS. 3 and 4. When opening the umbrella, when holding the mantle tube 4 and pushing it upward, The potter's wheel 1 is also pushed up along with this, and the umbrella gradually opens. When the potter's wheel reaches the position of the stopper hole 21 provided in the upper part of the umbrella shaft, the inward protrusion 31 of the key member 3 fits into the stopper hole 21, as shown in FIG. At this time, the lower curved outer wall surface of the outward protrusion 32 of the key member is strongly pressed by the lower side 44 of the window hole 41 with the force pushing up the mantle tube 4, causing the key member to curve inward. A force is generated, and as a result, the inward protrusion 31 is tightly pushed into the stopper hole 21, and the open state of the umbrella is fixed and maintained. The shape of the curved outer wall surface of the outwardly protruding portion 32 of the key member does not necessarily have to be formed into an arc shape as shown in the figure, and the key member is bent inward by the force from the lower side 44 of the window hole 41. Any shape is sufficient as long as it generates a force, and therefore, generally, it is sufficient that the outer wall surface is inclined with respect to the umbrella axis.

Next, when closing the umbrella, when holding the mantle tube 4 and pulling it downward, the mantle tube 4 slides slightly downward on the potter's wheel body 11, as shown in FIG. The lower side 44 of the window hole 41 separates from the outer wall surface of the outward protrusion 32 of the key member 3, and the cam projections 43 provided at both corners of the upper side of the window hole 41,
43 is the inwardly inclined surface 3 of the outwardly protruding portion 32 of the key member.
3, 33 and presses them strongly, the key member 3 curves outward, and as a result, the inward protrusion 31 is completely removed from the retaining hole 21 of the umbrella shaft. In this case, the upper side of the window hole 41 of the outer tube comes into contact with the upper surface of the outwardly protruding portion 32 of the key member, and therefore, by continuously pulling the outer tube 4 downward, the potter's wheel 1 is pulled together with the umbrella shaft 2. The umbrella is then pulled down along the line, thereby closing the umbrella.

Therefore, in the above embodiment, the locking hole 21 is provided at the upper part of the umbrella shaft, and the locking structure for keeping the umbrella in the open state has been described. It can also be used as is as a locking structure near the grip handle (the part where a conventional umbrella has a bottom reel) to keep it in place. In that case, a locking hole similar to the locking hole 21 may be provided near the grip handle of the umbrella shaft, and a locking structure with the top and bottom completely reversed from the one shown in the figure may be provided on the potter's wheel part. . That is, another hollow hole having an upside-down shape is formed opposite to the hollow hole 12 on the peripheral wall of the potter's wheel tube body 11 on the side opposite to the side where the hollow hole 12 is provided, and here A key member that is the same as the key member 3 is fitted upside down, and also on the peripheral wall of the mantle tube 4 on the opposite side to the side where the window hole 41 is provided, facing the window hole 41 and upside down. Another window hole is formed, and the outward protrusion of the other key member is fitted into this window hole. In such a case, when the umbrella is closed and the mantle tube 4 is pulled toward the hand, the inward protrusion of the other key member will fit into the stop hole in front of the umbrella shaft for the same reason as above. When pushing up the mantle tube to maintain the closed state and open the umbrella, the cam protrusion provided in the other window hole of the mantle tube curves the other key member outward, and the inward protrusion is removed from the stopper hole, allowing the potter's wheel to be pushed up.

As mentioned above, in the locking structure according to the present invention,
By simply holding the mantle tube 4 and pushing it up when opening the umbrella and pulling it down when closing it, which are the basic operations for opening and closing the umbrella, the potter's wheel is automatically locked and released at the same time. Since it is made for a purpose, it provides a convenient umbrella that does not require any troublesome work such as visually checking for repellents or searching and pressing with your fingers as with conventional umbrellas. .

Note that the configuration of the present invention is not limited to the above-mentioned embodiments. That is, for example, the shape of the key member 3 and the shape of the corresponding hole 12 formed in the potter's wheel tube body 11 are such that the key member moves vertically relative to the potter's wheel tube body during opening and closing operations of the umbrella, causing backlash. Any shape is fine as long as it does not stick. Further, the inwardly inclined surfaces 33, 33 of the outwardly projecting portion of the key member and the cam protrusions 43, 43 of the window hole of the mantle tube 4, which act on these and curve the key member outward, also perform the same function. If so, other configurations may be used. Therefore, the present invention encompasses all modifications that can be easily conceived by those skilled in the art within the scope of its purpose.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the appearance of one embodiment of the umbrella potter's wheel locking structure according to the present invention, Fig. 2 is an exploded perspective view thereof, and Figs. 3 and 4 are diagrams showing the functions thereof. This is a partially cutaway view. DESCRIPTION OF SYMBOLS 1... potter's wheel, 11... potter's wheel tube body, 12... hollow hole, 2... umbrella shaft, 21... stop hole, 3... key member, 3
1...Inward protrusion, 32...Outward protrusion, 33, 33
...inward inclined surface, 4...mantle tube, 41...window hole, 42...
Vertical groove, 43, 43... cam protrusion, 44... lower side.

Claims (1)

[Scope of Claims] 1. A retaining hole drilled in the umbrella shaft, a potter's wheel tube body that is formed integrally with the lower potter's wheel and is slidably fitted to the umbrella shaft along its axial direction, and the potter's wheel tube body of the above-mentioned potter's wheel tube body. A key member having a protruding portion that is housed in a hollow hole formed in the peripheral wall and protrudes outwardly and inwardly, and the inwardly protruding portion is formed so as to be able to fit into the stopper hole formed in the umbrella shaft. , an outer tube that is fitted onto the outer periphery of the potter's wheel tube so as to be slightly slidable in the axial direction and has a window hole through which the outward protrusion of the key member can pass. Locking structure for the lower potter's wheel. 2. The outer wall surface of the outwardly protruding portion of the key member is formed to be inclined with respect to the umbrella shaft, and when the mantle tube is pushed toward the outer wall surface, one side of the window hole is formed to be inclined toward the outer wall surface. 2. A locking structure for a potter's wheel under an umbrella according to claim 1, wherein said key member is curved inward by pressing an inclined outer wall surface of said key member. 3. The inner wall surface of the outwardly projecting portion of the key member is formed to be inclined with respect to the umbrella shaft, and when the mantle tube is pushed toward the inner wall surface, one side of the window hole is formed to be inclined toward the outwardly projecting portion of the key member. 3. A locking structure for a potter's wheel under an umbrella according to claim 1 or 2, wherein said key member is curved outward by pressing the inclined inner wall surface of said key member. 4. A locking structure for a potter's wheel under an umbrella according to claim 3, wherein cam projections are provided at both corners of one side of the window hole facing the inclined inner wall surface of the outwardly projecting part.