JP2003204845A - Upper runner of mosquito net hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an upper runner of a mosquito net hood, capable of preventing the peripheral edge of a hole of a cover from being caught and twisted between the base of an upper body and a flange part for fitting a main spoke of a lower body so as to facilitate orderly fitting. <P>SOLUTION: A shaft part 13 of a lower runner 12 is pulled up by a pull string 18, and the shaft part of the lower runner is passed through the upper runner 1 and locked to expand the rib 9 and a stretcher 16. The rib and stretcher are collapsed by pulling the shaft part of the lower runner out of the upper runner. The upper runner is formed of the upper body 1A having a through-hole 5 bored in the central area extending from the upper surface to the base, and the lower body provided with a rib fitting flange part 7 in the outer periphery of the lower part of a hollow shaft part 6 where the shaft part of the lower runner is penetrated and a hollow shaft part removably engaged with the through hole of the upper body. A step is formed on the inner peripheral wall of the through hole of the upper body. The outer periphery of the hollow shaft part of the lower body 1B is provided with a step abutting on the step. When the step and the step butt upon each other, a gap 8 is provided between the lower surface of the upper body and the upper surface of the rib fitting flange of the lower body. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a potter's wheel used for a mosquito net, a table cover and the like.

[0002]

2. Description of the Related Art Conventionally, a top wheel, to which a cover such as a bite mosquito net is attached, has a head and a neck which is continuous with the lower part of the head.
The main bone attachment collar part provided on the outer circumference of the neck part is integrally formed, and when the cover is attached to this upper lathe, the hole through which the head of the upper lathe or the main bone attachment flange is inserted in the center part of the cover. And sew a reinforcing cloth around the periphery of the hole, form a bag part through which the fastening string is inserted, and fix the periphery of the hole to the neck of the lathe with the fastening string. . this is,
In order to prevent the cover from coming off from the top wheel, it is necessary to bind the periphery of the hole with a fastening string, so that the cover has the complicated structure as described above and the appearance is not good. I had it.

Therefore, in order to solve the above problems, the present applicant has applied for a patent application No. 2000-220517. As shown in FIG. 4, the upper wheel 20 has a head 2
1 and a neck portion 22 provided in the lower portion of the head portion 21, and a collar portion 23 provided in the lower portion of the neck portion 22 are integrally formed, and a through hole 24 is provided from the head portion 21 in the center portion of the collar portion 23. Body 2
0A and a lower body 20 in which a main bone attaching flange portion 26 is provided on the lower outer periphery of a hollow shaft portion 25 through which the lower lathe shaft portion is inserted.
B, and the lower body 2 is inserted into the through hole 24 of the upper body 20A.
The hollow shaft portion 25 of 0B is detachably screwed into the upper body 20A.
When the lower body 20B and the lower body 20B are combined, a stepped portion is provided at the boundary between the hollow shaft portion 25 and the upper surface of the main bone attaching flange portion 26 so that a gap 27 can be provided between the main bone attaching flange portion 26 and the flange portion 23. 28 is formed.

When the cover 29 is attached, the upper body 20A and the lower body 20B are separated from each other, and the diameter of the lower body 20B is smaller than the outer diameters of the collar portion 23 and the main bone attaching collar portion 26 in the central portion of the cover 29. If a hole large enough to allow the hollow shaft portion 25 to be inserted is made, the hollow shaft portion 25 of the lower body is inserted into the hole from the inside of the cover, and the upper body 20A is inserted into the hollow shaft portion 25 protruding upward from the hole. The peripheral edge of the hole of the cover 29 is simply screwed into the through hole 5, and the gap 27 between the main bone attaching flange portion 26 of the lower body 20B and the flange portion 23 of the upper body 20A is formed.
Easily attached to.

However, since the gap 27 is formed by the step portion 28, when the upper body 20A and the lower body 20B are screwed together, the lower surface of the flange portion 23 of the upper body 20A and the upper surface of the step portion 28 are in close contact with each other. However, the periphery of the hole of the cover 29 is sandwiched between the collar portion 23 and the step portion 28, and if it is rotated as it is, it is twisted, and the cover is not properly attached.

[0006]

From the above points, the present invention is
When attaching the cover to the upper wheel, the peripheral edge of the hole in the center of the cover is sandwiched between the lower surface of the upper wheel and the upper surface of the main body attachment collar of the lower wheel when the upper wheel and lower wheel of the upper wheel are screwed together. It is an object of the present invention to provide a top wheel such as a mosquito net that can be easily attached in an orderly manner without being twisted.

[0007]

In order to solve the above problems, according to the present invention as set forth in claim 1, in the upper potter's wheel or the like of a mosquito net, the shaft portion of the lower potter is pulled up with a drawstring, and the shaft portion of the lower potter's shaft is in the upper potter's wheel. It is an upper wheel used for a mosquito net, etc., in which the main bone and the bones are folded by extending the main bone and the bone by inserting and locking them into the shaft and pulling out the shaft part of the lower wheel from the upper wheel. The upper wheel has an upper body having a through hole formed in the central portion from the upper surface to the bottom surface, and a main bone attachment flange is provided on the lower outer periphery of the hollow shaft through which the shaft of the lower wheel passes. The upper body has a lower body into which a hollow shaft portion is detachably screwed, and a step portion is provided on an inner peripheral wall of the through hole of the upper body. There is a step that abuts on the part, and both steps are under the upper body at the time of abutting. When, is characterized in that the gap is formed so as to be provided between the upper surface of the main bone mounting flange portion of the lower body.

According to the present invention having such a structure, when the cover is attached, the upper body and the lower body are separated from each other, and a hole having a size large enough to allow the hollow shaft portion of the lower body to be inserted is formed in the central portion of the cover. For example, if the hollow shaft part of the lower body is inserted into the hole from the inside of the cover and the through hole of the upper body is screwed into the hollow shaft part protruding above the hole, the step of the through hole of the upper body The stepped portions of the hollow shaft portion of the lower body are abutted and united.

At the time of abutting, since a gap is formed between the lower surface of the upper body and the upper surface of the main frame attaching flange of the lower body, the cover inserted in this gap may be caught and twisted. Can be installed without.

[0012] Next, in the upper potter's wheel of the present invention according to claim 2 of the present invention, the step of the upper body and the tip of the hollow shaft portion of the lower body are butted. A gap is provided between the lower surface of the upper body and the upper surface of the main body attaching flange of the lower body during the butting.

According to the present invention having such a structure, even when the stepped portion of the upper body and the tip of the hollow shaft portion of the lower body butt against each other, the lower surface of the upper body and the upper surface of the main frame attaching collar portion of the lower body are connected. Since the gap is formed, the cover, which is inserted into the gap as before, is attached without being pinched and twisted.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a lathe of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view showing an embodiment of the present invention's lathe according to claim 1, FIG. 2 is a cross-sectional view showing the same usage state as the above, and FIG. 3 is a diagram showing an embodiment of the present invention's lathe according to claim 2. It is sectional drawing shown.

In FIGS. 1 and 2, reference numeral 1 in the drawings is a plastic lathe wheel composed of an upper body 1A and a lower body 1B. The upper body 1A is formed by integrally forming a head 2, a neck portion 3 below the head 2, and a collar portion 4 formed on the lower portion of the neck portion 3 from the center of the head 2 to the center of the collar portion 4. A through hole 5 is provided in the section.

The through hole 5 is provided with a screw groove 5B having an inner diameter larger than the inner diameter of the upper hole 5A on the lower inner peripheral wall excluding the upper hole 5A, and a step 5C is formed at the boundary with the upper hole 5A.
Further, following the screw groove 5B of the through hole 5, the lower portion thereof is formed as a tapered lower hole 5D which spreads downward.

The lower body 1B comprises a hollow shaft portion 6 through which a shaft portion of a lathe, which will be described later, can be inserted, and a main bone attaching flange portion 7 integrally formed on the outer periphery of the lower portion of the hollow shaft portion 6,
A screw 6B that is screwed into the screw groove 5B of the through hole 5 of the upper body 1A is provided on a part of the outer peripheral surface of the hollow shaft portion 6. Further, on the outer peripheral surface of the hollow shaft portion 6, above the screw 6B, a step portion 6C is formed which abuts the step portion 5C of the through hole 5 of the upper body 1A.
The upper part of C is inserted into the upper hole 5A of the through hole 5 of the upper body 1A.

Both step portions 5C and 6C are formed so that a gap 8 is provided between the lower surface of the collar portion 4 of the upper body 1A and the upper surface of the main frame attaching collar portion 7 of the lower body 1B at the time of butting. There is. The gap 8 communicates with the lower hole 5D of the through hole 5 of the upper body 1A. Therefore, when the peripheral portion of the hole in the central portion of the cover is attached, the peripheral portion is not only pinched by the gap 8 but also the lower hole 5D, so that it is more difficult to pinch.

Further, the main bone attaching collar portion 7 is made of a flexible metal or synthetic resin in the shape of a thin rod, and the main bone 9 is formed.
However, the upper part thereof is pivotally attached to a radial groove 7A provided in the main bone attaching flange portion 7 via a wire or the like so as to be swingable.

Reference numeral 10 denotes a mesh-like cover which is stretched over the main bone 9. Reference numeral 11 denotes a hole provided in the central portion of the cover 10. After inserting the hollow shaft portion 6 of the lower body 1B of the upper wheel 1 into the hole 11, the upper body 1A is screwed to form a hole in the central portion of the cover 10. Attach 11. The size of the hole 11 is smaller than the outer diameters of the flange portion 4 and the main bone attaching flange portion 7 and is large enough to allow the hollow shaft portion 6 of the lower body 1B to be inserted therethrough.

12 is a plastic lathe,
An upper shaft portion 13 that can be inserted into the hollow shaft portion 6 of the lower body 1B of the upper wheel 1; a lower shaft portion 14 that cannot be inserted into the hollow shaft portion 6;
Bone mounting collar 15 provided at the lower end of the lower shaft portion 14
Are formed from. In addition, the ribs 15 for attaching the ribs are provided with a number of metal or synthetic resin ribs 16 corresponding to the number of the main bones 9 at one end in radial grooves 15A provided in the ribs 15 for attaching ribs. They are pivotally attached to each other via wires or the like. The other end of the skeleton 16 is rotatably attached to the main bone 9.

Reference numeral 17 denotes an elastic engagement member which is internally mounted on the side of the upper shaft portion 13 of the lower wheel 12 so as to be able to move in and out, and can be engaged with and disengaged from the upper surface of the head 2 of the upper wheel 1. Reference numeral 18 is a drawstring having one end fixed to the upper end of the upper shaft portion 13 of the lower wheel 12 and the other end fixed to the knob 19.

Next, the cover 10 is attached to the upper wheel 1 by separating the upper wheel 1 into an upper body 1A and a lower body 1B.
Insert the hollow shaft portion 6 of the lower body 1B of the upper wheel 1 from the inside of the cover 10 into the hole 11 provided in the central portion of the cover 10,
The hollow shaft portion 6 is projected to the outside of the cover 10. Then, the screw 6B of the hollow shaft portion 6 is attached to the screw groove 5 of the through hole 5 of the upper body 1A.
When B is screwed, the stepped portion 5C of the through hole 5 of the upper body 1A and the stepped portion 6C of the hollow shaft portion 6 of the lower body 1B are abutted and united, and the lower surface of the collar portion 4 of the upper body 1A and the lower body 1B. It is attached to the gap 8 between the upper surfaces of the main bone attaching collar portions 9 of the above.

Next, FIG. 3 shows an embodiment of the upper ladle of the present invention, such as a worm bed and net, and parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals. The present invention is configured such that the tip of the hollow shaft portion 6 of the lower body 1B of the upper wheel 1 abuts on the step portion 5C of the through hole 5 of the upper body 1A, and at the time of abutment, the lower surface of the collar portion 4 of the upper body 1A and the lower portion thereof. A gap 8 is formed between the upper surfaces of the main bone attachment flanges 7 of the body 1B.

[0023]

According to the present invention, when the cover is attached to the upper wheel, when the upper body and the lower body of the upper wheel are screwed together, the space between the lower surface of the upper body and the upper surface of the main frame attaching collar portion of the lower body. Since there is a gap in the cover, it is possible to prevent the cover from being twisted due to the peripheral edge of the hole in the center of the cover attached to this gap, and anyone can easily and neatly attach the cover. It was

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a top wheel and the like of a scallop net of the present invention.

FIG. 2 is a cross-sectional view showing a usage state of a top wheel of the present invention such as a mosquito net.

FIG. 3 is a cross-sectional view showing another embodiment of the top wheel and the like of the present invention, such as a worm net.

FIG. 4 is a cross-sectional view of a conventional lathe.

[Explanation of symbols]

1 top wheel 1A Upper body 1B lower body 5 through holes 5B screw groove 5C step 6 hollow shaft 6B screw 6C step 7 Main frame attachment collar 8 gap 9 main bone 10 covers 11 holes 12 lowering wheel 13 Upper shaft 15 Bone mounting collar 16 bones 17 Elastic member 18 drawstring

Claims (2)

[Claims] 1. Pulling up the shaft of the lowering wheel with a drawstring,
The main bone and skeleton are folded by inserting the shaft of the lower wheel into the upper wheel and locking it to expand the main bone and the bone, and by pulling out the shaft of the lower wheel from the upper wheel. It is an upper wheel that is used for, for example, the upper wheel that has a through hole in the center from the top to the bottom, and the main frame on the lower outer periphery of the hollow shaft through which the shaft of the lower wheel passes. A flange for attachment is provided, and the hollow shaft is detachably screwed into the through hole of the upper body.
A step portion is provided on the inner peripheral wall of the through hole of the upper body, and a step portion that abuts the step portion is provided on the outer periphery of the hollow shaft portion of the lower body. An upper potter's wheel such as a mosquito net, characterized in that a gap is provided between the upper surfaces of the main body attaching collars of the lower body. 2. The stepped portion of the upper body and the tip of the hollow shaft portion of the lower body abut against each other, and at the time of this abutment, a gap is provided between the lower surface of the upper body and the upper surface of the main body attaching collar portion of the lower body. The potter's wheel of the worm bed net according to claim 1.