JPS60119902A - Engaging structure of lower lathe of umbrella - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the locking structure of the lower end of an umbrella, that is, the locking structure between the umbrella shaft and the lower end.

As is well known, the umbrella's lower opening black (hereinafter simply referred to as "Rokuro J") 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 on 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 locking between the potter's wheel and the upper reel (in this specification, the stone end of the umbrella is described as being on the upper side and the grip handle as being on the lower side) in a conventional umbrella is as follows: The upper repellent member that 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, so when opening the umbrella, the potter's wheel is not attached to the umbrella shaft. When pushing up along the potter's wheel, the upper repellent 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 repellent part, but when the lower end of the potter's wheel finishes passing through the upper repellent part, the upper repellent member The spring mechanism causes the potter's wheel to protrude onto the umbrella shaft again, and even if the potter's wheel attempts to descend, its lower end is caught by the upper end of the upper potter and is blocked, thereby locking the potter's wheel and the upper potter's wheel. Therefore, in order to close the umbrella, it is necessary to press the upper hatch with your thumb and pull down the potter's wheel, but the spring force is quite strong and the direction in which it is pressed is also specified. Therefore, some tricks were required, which 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 to the potter's wheel so as to be slidable up and down along the umbrella shaft, and A key member that is housed in a retaining hole formed in the tube body and has a protruding portion that protrudes outwardly and inwardly, and the inwardly protruding portion is formed so as to be able to fit into a retaining hole formed in the umbrella shaft. and a mantle tube which is fitted around 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 mantle is opened, the mantle When the potter's wheel is pushed upward with the tube, when the potter's wheel reaches the position of the stop hole drilled in the upper part of the canopy shaft, the lower side of the window hole of the outer tube is aligned with the slope of the outward protrusion of the key member. It acts on the outer wall surface to push the key member inward, and as a result, the inwardly protruding part of the key member is inserted into the retaining hole of the umbrella shaft, fixing and maintaining the open state of the umbrella, and opening the umbrella. To close it, cut the mantle and pull it down.
The upper side of the window hole of the mantle tube acts on the inclined inner wall surface of the outwardly protruding part of the key member to push the key member outward (force), which causes the key member to protrude inwardly. The handle 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 above configuration, 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 as in the conventional case. 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 an embodiment of an umbrella potter's wheel locking structure according to the present invention, FIG. 2 is an exploded perspective view thereof, and FIG.
FIG. 4 is a partially cutaway view showing its function. 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. Further, the reference numeral ``-'' in the middle of each figure indicates the same component.

In each figure, l is a potter's wheel that is slidably fitted into the umbrella shaft 2, 11 is a potter's wheel body that is integrally fixed to the potter's wheel body 1, and 12 is a hole in the peripheral wall of the potter's wheel tube body 11. 3 is a key member fitted into the locking hole, 31 is an inward protrusion that protrudes inward on the key member, and 32 is an outer protrusion that protrudes outward on the key member. Direction protrusion, 33, 3
3 is an inward inclined surface that gradually descends from the outside toward the inside on the inner wall surface of the outwardly protruding portion 32; 4 is the potter's wheel tube body 1;
1, 41 is the hole 12 for example.
A window hole 42 is formed in the circumferential wall of the mantle tube 4 so that the outward protrusion 32 of the key member 3 housed therein can pass through. 43. a vertical groove cut into the inner wall of the mantle tube 4 to form a space;
43 is a cam projection provided at both corners of the upper side of the window hole 41, and 44 is a lower side of the window hole 41.

When assembling these, the key member 3 is fitted into the 91 through hole 12 of the potter's wheel tube body 11, and the outer tube 4 is fitted on the outside thereof, so that the outward protrusion 32 of the key member is inserted into the outer tube 4. After setting it so that it fits in the window hole 41, the whole is fitted onto the umbrella shaft 2.

In such a case, the key member 3 may curve slightly inward and outward, but since it is accommodated in the hole 12 of the same shape, it cannot move relative to the potter's wheel tube body 11 in the axial direction. Become. Further, the mantle tube 4 also has a key member 3 in its window hole 41.
Since the outward protruding part 32 of is fitted, the potter's wheel tube body 11
Although it is possible to slide up and down slightly against the handle, the puller will not fall, so if the mantle tube 4 is moved, the potter's wheel 1 will be moved along with it.

The function of the locking structure configured as described above will be explained with reference to FIGS. 3 and 4. When opening the umbrella, if you hold the mantle tube 4 and push it upward, Rokuro I is also pushed up along with this, and the umbrella gradually opens. Then,
When the potter's wheel reaches the stop hole 21 provided in the upper part of the umbrella shaft, the inward protrusion 31 of the key member 3 fits into the stop hole 21, as shown in FIG. At this time, the lower curved outer wall surface of the outwardly protruding portion 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 may be bent inward by the force of 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, hold the mantle tube 4 and pull it downward, and the mantle tube 4 will slide slightly downward on the potter's wheel body 11, as shown in FIG. The lower side 44 of the window hole 41 protrudes from the outer wall surface of the outwardly protruding portion 32 of the key member 3, and the cam projections 43, 43 provided at both corners of the upper side of the window hole 41 extend from the outer wall surface of the outwardly protruding portion 32 of the key member 3.
The key member 3 curves outward as it comes into contact with the inwardly inclined surface 33.33 of the umbrella and presses it strongly, and as a result, the inward protrusion 31 completely separates from the retaining hole 21 of the umbrella shaft. It is. In this case, the upper side of the window hole 41 of the mantle tube comes into contact with the upper surface of the outwardly protruding part 32 of the key member, and therefore, by continuously pulling the mantle tube 4 downward, the potter's wheel 1 is also pulled together with the canopy 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 with a lower repellent in conventional umbrellas) 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, on the peripheral wall of the potter's wheel tube body 11 on the opposite side to the side where the hole 12 is provided, another hole having an upside-down shape is formed opposite to the hole 12, and here Insert a key member that is the same as key member 3 upside down, and then insert it into the window hole 4 of the mantle tube 4.
Another window hole having an upside-down shape is formed in the peripheral wall opposite to the side where the window hole 41 is provided, and the outside of the other key member is formed in this window hole. The side protrusion is fitted into the housing. 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 mentioned 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 inner The side protrusion comes off the stopper hole, allowing the potter's wheel to be pushed up.

As described above, in the locking structure according to the present invention, the outer tube 4
The potter's wheel is automatically locked and released at the same time by simply holding the umbrella and pushing it upwards when opening it, and pulling it downwards when closing it, which are the basic operations for opening and closing an umbrella. Therefore, a convenient umbrella is provided that does not require any troublesome work such as visually checking for repellency or searching and pressing with 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 hole 12 formed in the potter's wheel tube body 11 corresponding thereto are as follows.
Any shape may be used as long as the key member does not move vertically relative to the potter's wheel body and rattle when the umbrella is opened and closed. In addition, the inwardly inclined surface 33.33 of the outwardly protruding part of the key member
The cam projections 43, 43 of the window hole of the mantle tube 4 which act on this to curve the key member outward may also have other configurations as long as they perform the same function. Accordingly, 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. 1--------・--11--------
--One potter's wheel 11------. −−−−−−・−1−−
-----Rokuro pipe body 12------------
−−−−−−One piercing hole 2m−−−−・−1−−−−−
−−−−・−・−1−−Umbrella shaft 21−・−−−−−−
−−−1−−−−−−−−Stopping hole 3−−−1−−−
−−−−−−−・−−−−−−−−−−Key member 31
−−−−−−−−−−−−−−−−−−−1 Inward protrusion 32 −−−−−−−−−−−−−−−−・−−11 Outer protrusion Section 33, 33---------------
Inward inclined surface 4---1・---1------
-----------One mantle tube 41---------
−−−−−−−−−Window hole 42−−−−1・−111−
--------・---11---Vertical grooves 43, 43------
−−−−−−−−−−−−−One cam projection 44−−−−−−−
−−−−−−−−−−−−−−−−−One lower side patent applicant
Chen Deliang (and 1 other person) Agent (7524) Mogami Shotabe FIG, f FIG, 2 FIG, 3 FIG, 4 Procedural amendment written form) March 22, 1980 Director General of the Patent Office Kazuo Wakasugi 1 , Indication of the case Patent Application No. 228584 filed in 1982 2 Name of the invention Umbrella bottom black locking structure 3 Person making the amendment Relationship to the case Patent applicant Address Lie Name, 66 Baorashan, Taoyuan City, Republic of China Chen Deliang (1 other person) 4. Agent Bone 107 583-0306 Address 1-8-1-6 Akasaka, Minato-ku, Tokyo; Engraving of the specification subject to amendment (no changes in content)

Claims (1)

[Scope of Claims] 1) A retaining hole drilled in the umbrella shaft; a potter's wheel tube body formed integrally with the lower opening black and slidably fitted to the umbrella shaft along its axial direction; and the potter's wheel tube described above. The cap has a protruding part that is housed in a hole formed in the peripheral wall of the body and projects outwardly and inwardly, and the inwardly protruding part is formed so as to be able to fit into the stopper hole formed in the umbrella shaft. and an outer tube that is fitted onto the outer periphery of the potter's wheel body so as to be able to slide slightly in the axial direction and has a window hole through which the outward protrusion of the key member can pass. Features a locking structure at the bottom of the umbrella. 2) When 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 lower opening closure of an umbrella according to claim 1, wherein the key member is curved inward by pressing the inclined outer wall surface of the side protrusion. 3) When the inner 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 inner wall surface, one side of the window hole is formed to be inclined toward the outer wall surface. 3. A locking structure for a lower opening black of an umbrella according to claim 1 or 2, wherein the key member is curved outward by pressing the inclined inner wall surface of the side protrusion. 4) A locking structure for a lower opening of 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 portion.