JPS63300706A - Unbrella and pulley thereof - 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] (Industrial Application Field) The present invention relates to an umbrella potter's wheel corresponding to the hinge part of the bones of an umbrella or parasol, and an umbrella employing the potter's wheel, which is particularly simple in structure, easy to manufacture, and inexpensive. This relates to a certain umbrella potter's wheel and umbrella.

(Prior art) Conventional umbrellas are made by forming a number of slits on the circumferential surface of an annular member using a U-shaped steel bone, inserting the crushed U-shaped bones into these, and connecting them with wire. A so-called potter's wheel was used, which had bones that could be opened and closed. Furthermore, when this potter's wheel was used, an auxiliary bone similarly attached to a member that slid up and down the shaft kept the umbrella bone open. However, this type of potter's wheel has a large number of parts, is difficult to work with, and requires a large amount of assembly man-hours, making it expensive. The same applies to umbrellas that use this potter's wheel.

(Object of the Invention) The present invention was made in view of the conventional problems of this kind, and an object thereof is to provide a heavy-duty potter's wheel and an umbrella with reduced assembly man-hours.

(Structure) Therefore, the first invention includes: an annular portion having a hole facing the hole of the shaft; a plurality of cylindrical portions arranged radially from the annular portion and opening in the radial direction; A heavy-duty potter's wheel is provided in which a hinge portion that flexibly connects the cylindrical portion and the annular portion is integrally molded of synthetic resin, and a second invention includes a shaft having a hole opening at the upper end along the axis. , an annular portion having a hole facing the hole of the shaft, a plurality of cylindrical portions arranged radially from the annular portion and opening in the radial direction, and a flexible connection between the cylindrical portion and the annular portion; A heavy-duty potter's wheel whose connecting hinge part is integrally molded from synthetic resin and a plurality of bones and a skeleton that are inserted and fixed into the tubular part of the umbrella potter's wheel are fused together so that the plurality of bones are radially shaped. A bone-in film made of a film arranged and covered, and the heavy-duty potter's wheel, in which the bones of the bone-in film are inserted and fixed into the cylindrical portion, are sandwiched with the upper end of the shaft, and the holes of the heavy-duty potter's wheel are passed through, and the A resin cover has a boss part that is inserted into a hole in the shaft and is fixed thereto, and a resin cover that has a recess that prevents the cylinder part from moving in the arrangement circumferential direction at a position corresponding to the cylinder part of the potter's wheel, and a resin cover that is slidable on the shaft. The umbrella includes a support plate that is attached to the support plate and holds the bone-in film in an open state by sandwiching the bone-in film with the resin cover.

(Example) The present invention will be explained below based on the drawings.

1 to 3 show an embodiment of the umbrella potter's wheel of the first invention. In the figure, 10 is a heavy duty potter's wheel, and PE
It is integrally molded from resin such as PP, ABS, or PVC. First, an annular part 11 having a hole 11a facing a hole of a shaft to be described later is provided in the center, and a plurality of cylinders arranged radially from the annular part 11 and having openings 13a in the radial direction are provided around the periphery. A section 13 is provided. The cylindrical portion 13 and the annular portion 11 are flexibly connected by a hinge portion 15.

As shown in FIGS. 2 and 3, the cylindrical portion 13 is
In this example, four protrusions 13b are provided in the opening 13a along the axial direction. Even if there is a slight variation in the thickness of the bone being inserted, this is absorbed and the bone can be inserted. Further, the protrusion 13b makes it easy to insert and prevents it from falling out. Further, the hinge portion 15 has a flat plate shape and has sufficient flexibility. Further, a protrusion 15a is provided at the base portion, that is, the connection portion with the annular portion 11, and is engaged with a recess in a resin cover to be described later to prevent the heavy-duty potter's wheel 10 from rotating.

In this example, the number of cylindrical portions 13 is shown as eight, but it goes without saying that there may be more or less than this, and the annular portion 11 is also circular, and the cylindrical portion 13 is not limited to a cylinder. do not have. The number of protrusions 13b may also be less than or greater than four.

Next, the umbrella of the second invention will be explained using FIGS. 4 to 6. In the figure, 20 is a shaft, which is a hollow body.

The material may be metal or resin. A gripping portion 21 is formed at the lower end of the shaft 20 by press-fitting a resin part or the like. The bone-in film 30 consists of bones 31 and a film 32, and the plurality of bones 31 are arranged radially on a jig (not shown) or the like as shown in FIG. 4. This jig is made at the opening angle of the bones when the umbrella is open, and a pre-cut resin film 32 is placed on this jig, and heat is applied from above the film 32 to fuse it to the bones. This frame 31 may be made of only a steel wire, but it is painted to fix the film by fusion, to prevent rust, and to improve appearance.

This coating is, for example, powder coating, and the film 32 is coated with PE.
When using PE paint, it is done by fluid dipping method etc. using PE paint of the same type. With this type of painting, the film can be particularly thick, and there are variations in the film thickness.

Therefore, as shown in FIG.
By providing the protrusion 13b inside a, this variation can be absorbed.

A resin cover 40 is provided at the tip of the shaft 20. This resin cover 40 is composed of an umbrella part 41 having a conical hole, a boss part 42 on the inside of the umbrella part 41, and a hanging grip part 43 on the outside of the umbrella part 41. The umbrella part 41 is made of approximately the same thickness, and an annular recess 41a is formed around a boss part 42 at the center of the inside, and a ring corresponding to the cylindrical part 13 of the potter's wheel 10 is formed around the annular recess 41a. Cylindrical part 13 in position
It has recesses 41b that prevent the arrangement of bones 31 from moving in the circumferential direction and prevent the gap between the open bones 31 from moving. Further, in order to prevent the umbrella potter's wheel 10 itself from rotating, a small recess 41c is provided following the annular recess 41a.
is provided.

The boss portion 42 is provided with an insertion hole 42a for a pin 50 shown in FIGS. 4 and 5. The hanging grip part 43 is used when folding the umbrella and suspending it by inserting a finger into the umbrella with the grip part 21 facing down.

As shown in FIG. 5, the server 1-plate 60, which has a substantially truncated conical shape, has two stepped surfaces, and the slope is for sandwiching the bones 31, the film 32, and the heavy duty potter's wheel 10. This is the same as the inner slope of the umbrella portion 41. At the center is a hole 61 through which the shaft 20 passes, through which the support plate 60 can freely slide, and a long hole 6 through which the pin 50 passes.
2 is formed. This elongated hole 62 is large enough for the pin 50 to pass through, and a chamfer is formed on the ridgeline of the elongated hole 62 on the heavy duty potter's wheel 10 side, so that the pin 50 matches the elongated hole 62 and can easily fit inside. It has a shape. The support plate 60 is provided on the lower surface of the support plate 60.
Two bosses 63 for rotating itself are provided on a straight line at equal distances from the center. Further, the hole 22 is provided at a position of the shaft 20 where the resin cover 40 and the like can be assembled without play when the resin cover 40 and the like are assembled to the shaft.

Next, to explain assembly, the support plate 60 is slidably attached to the shaft 20 into which the gripping part 21 is press-fitted, and the annular part 1 of the umbrella potter's wheel is attached to the tip of the shaft 20.
1 and bone-in film 30 are placed thereon, and the boss portion 42 of the resin cover 40 is inserted into the hole 22 of the shaft 20. At this time, the assembly is performed by inserting the heavy-use potter's wheel 10 so that the annular portion 11 and the protrusion 15a are engaged with the annular recess 41a and the recess 41c, and inserting the pin 50 into the hole 22 and the insertion hole 42a. Thereafter, each bone 31 of the bone-attached film 30 is inserted into the opening 13a of the cylindrical portion 13, and the ribs 13b are inserted while being deformed, so that the assembly is completed so that the ribs 31 do not fall out.

When such an umbrella is suspended, the ribs 31 are aligned downward, and when in use, the handle 21 is generally held with the left hand, and the boss 6 of the support plate 60 is held with the right hand.
3 between the thumb and forefinger, and when it hits the pin 50, the support plate 60 is rotated from side to side, and the long hole 62 is aligned with the pin 50 and passed through. As a result, the cylindrical portions 13 of the bones 31 are pressed against the recesses 41b, and as the bones 31 open, the film 32 also becomes tensioned. By turning the support plate 60 to the right in this state, the pin 8-50 and the elongated hole 62 are no longer aligned, and the pin 50 supports the plate 60 to the support 1. Therefore, the bones 31 are opened and fixed, and the film 32 is in a stretched state. When closing, do the opposite of what you just did.

(Effects of the Invention) As explained above, the first invention uses a resin potter's wheel, which is completely different from the conventional potter's wheel, so the heavy duty potter's wheel itself is inexpensive and has the effect of not causing rust. Furthermore, the second invention also has the effect that the number of man-hours required for manufacturing the umbrella is reduced, and the entire structure itself is inexpensive.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the first invention, in which FIG. 1 is a perspective view of an umbrella potter's wheel, FIG. 2 is a central sectional view of the umbrella potter's wheel shown in FIG. The figure is an end view on the opening side of the cylindrical part, Figures 4 to 6 show an embodiment of the second invention, Figure 4 is an exploded perspective view of the main parts of the umbrella, and Figure 5 shows the umbrella in the open state. A cross-sectional view of the main parts, and FIG. 6 is a perspective view of the umbrella. 10... Heavy use potter's wheel 11... Annular part 13
・Cylinder part 15 ・Hinge part 20 ・
... Shaft 22 ... Hole 30 ... Bone film 31 ... Bone 32 ... Film
40...Resin cover 41...Umbrella part
42... Boss portion 50... Pin 60... Support plate 61... Hole 62...
Long hole = 11- Figure 1 Figure 2 Procedural amendment (voluntary) 1. Display of the case 1986 Patent Application No. 1'36467 2, Invention name multiple use potter's wheel and umbrella 3, Person making the amendment Relationship to the case Applicant: Michio Yokoyama 4, Agent: Nihonbashi, Chuo-ku, Tokyo Kakigara-cho 1-13-12 Specification, Drawing 6, Contents of Amendment (1) The claims of the specification are amended as shown in the attached sheet. (2) Amend the plan of the drawing as shown in the attached sheet. Claims [1] An annular portion having a hole facing the hole of the shaft; a plurality of cylindrical portions arranged radially from the core annular portion and opening in the radial direction; the cylindrical portion and the annular portion; A heavy-duty potter's wheel that is unique in that the hinge part that flexibly connects the two parts is integrally molded from synthetic resin. 12) A shaft having a hole opening at the upper end along the axis, - an annular part having a hole facing the hole of the shaft, arranged radially from the liquid source part and opening in the radial direction; A heavy-use potter's wheel in which a plurality of cylindrical parts and a hinge part that flexibly connects the cylindrical parts and the annular part are integrally molded of synthetic resin; "A mortar film support consisting of a main bone and a film that covers the plurality of bones in a radial arrangement by fusing the bones together." While being clamped to the upper end of the shaft,
A resin having a boss portion that penetrates the hole of the umbrella potter's wheel and is inserted into the hole of the shaft and is fixed thereto, and a recess that prevents the cylindrical portion from moving in the arrangement circumferential direction at a position corresponding to the cylindrical portion of the potter's wheel. An umbrella comprising: a cover made of plastic; and a support plate that is slidably attached to the shaft and holds the ribbed film in an open state by sandwiching the film with the cover made of resin. Figure 1 Figure 2 Figure 3 13t)

Claims (2)

[Claims] (1) An annular portion having a hole facing the hole of the shaft, a plurality of cylindrical portions that are arranged radially from the annular portion and open in the radial direction, and a plurality of cylindrical portions and the annular portion. An umbrella potter's wheel characterized by a hinge part that is flexibly connected and integrally molded of synthetic resin. (2) A shaft having a hole opening at the upper end along the axis, an annular part having a hole facing the hole of the shaft, and a plurality of shafts arranged radially from the annular part and opening in the radial direction. an umbrella potter's wheel in which a cylindrical part and a hinge part that flexibly connects the cylindrical part and the annular part are integrally molded of synthetic resin; and a bone-in film made of a film that covers the plurality of bones in a radial arrangement by fusing the bones, and the umbrella potter's wheel in which the bones of the bone-in film are inserted and fixed in the cylinder part. The cylindrical portion is arranged in a circumferential direction at a position corresponding to a boss portion that is clamped to the upper end of the shaft and is inserted and fixed into the hole of the umbrella potter by passing through the hole of the umbrella potter. It consists of a resin cover having a recess for preventing movement, and a support plate that is slidably attached to the shaft and holds the bone-in film in an open state by sandwiching it with the resin cover. An umbrella characterized by