JPH034199Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a duster, and more particularly to a duster made of a tufted body made of defibrated yarn wrapped around a handle.

The fibrillated yarn is made by, for example, stretching an olefin resin film, defibrating it, and subjecting it to electret processing by corona discharge before or at any stage after the fibrillation, and after this electret processing, the electret effect is lost. It has been crimped without being charged, permanently fixes the charged state, and has excellent ability to electrically attract fine dust.

The duster of the present invention is a duster using such a defibrated yarn, in which a tufted body made of the defibrated yarn is wound around the handle, and the tufted body is securely fixed so that it does not slip out from the handle. Its structure has been improved.

Hereinafter, details of the present invention will be explained based on embodiments shown in the drawings.

In the figure, the duster designated by reference numeral 1 consists of a handle 2 and a tufted body 3 made of defibrated yarn, and the tufted body 3 is wound around the handle 2 by a method described later.

As shown in FIGS. 2 and 3, the handle 2 has a grip 4 screwed onto its rear end, and most of the tip of the handle 2 is a screw shaft 5. This spiral shaft 5 has a spiral groove 5a formed at a predetermined pitch except for a part, and a small diameter portion 6 with a closed end is formed at the tip of the spiral shaft 5, as shown in FIG. A semicircular notch 6a is formed in a part of the outer circumferential surface. An annular protrusion 7 is formed on the outer periphery of this small diameter portion 6, and a locking ring 8 is fitted on the outside of this protrusion 7. The locking ring 8 has a cylindrical portion 9 with a closed tip, and the cylindrical portion 9 has a helical groove 9a on its outer peripheral surface having the same pitch and the same outer diameter as the helical groove 5a of the helical shaft 5. It is formed. As shown in FIGS. 4 and 5, the inner peripheral surface of the cylindrical portion 9 is formed with a protrusion 9b that fits into the notch 6a. In the middle of the surface is an annular groove 9c into which the protrusion 7 is fitted, avoiding the protrusion 9b.
is formed. The tip of the cylindrical part 9 has a third
As shown in FIG. 4, FIG. 6, and FIG. 6, a fixed frame 10 having a semicircular cross section and a rotating frame 11 continuous thereto are provided. The fixed frame 10 has a cylindrical portion 9
A pin 10a is provided in a protruding manner at the center of the arcuate inner surface near the tip.

Further, as shown in FIG. 3, the rotating frame 11 is connected to the fixed frame 10 via a thin hinge part 12 so as to be openable and closable. Two pins 13 are placed at a predetermined distance apart from each other at a position closer to the tip side than the pin 10a of the frame 10,
13 is provided protrudingly.

Therefore, when the rotating frame 11 is closed, it is butted against the fixed frame 10 as shown in FIG. 6, forming a cylindrical part as a whole, and the pins 10a and 13,1
3 is in mesh state. As shown in FIG. 3, on the outer peripheral surfaces of these fixed frames 10 and rotating frames 11,
Spiral grooves 10b and 1 are respectively continuous with the spiral groove 9a.
1a is formed in a continuous state. Furthermore, a projecting piece 14 is formed along the tangential direction near the outer tip of the rotating frame 11 or the fixed frame 10.

As shown in FIG. 3, a cylindrical portion 5b without a spiral groove 5a is formed at the base end of the spiral shaft 5.
Recesses 5c are formed in the cylindrical portion 5b at left and right opposite positions. The recess 5c is not necessarily a recess, but may be a through hole as long as they are formed facing each other.

A flange 15 is provided protrudingly provided on the base end side rearward of these recesses 5c, and a threaded portion 16 is further formed continuous with the flange 15, and a cylindrical portion 17 is further continuously formed integrally with this threaded portion 16. is formed.

The reference numeral 18 is a locking ring, which is shown in Figs. 3 and 7.
As shown in Figure 8 and Figure 8, it has a nearly circular arc-shaped cross section, is formed in a C-shape with a predetermined width, and a part of its outer peripheral surface has an L-shape that bends toward the rear. A locking piece 18a having a shaped cross section is provided in a protruding manner.

The engagement ring 18 has a cylindrical protrusion 1 fitted into the recess 5c at an opposing position on the inner surface.
8b is provided protrudingly.

The locking ring 18 having such a structure is attached to the cylindrical portion 5b without the spiral groove 5a formed at the base end of the helical shaft 5 from the outside while elastically deforming the free end side of the locking ring 18. , by fitting the protrusions 18b, 18b into the recess 5c so as not to rotate.

In FIGS. 3 and 7, the reference numeral 19 is a cap, and this cap 19 is connected to the large diameter portion 20.
and a small-diameter portion 21, and an annular protrusion 22 is further formed along the entire circumference inside the entrance end of the large-diameter portion 20. The large diameter portion 20 has a notch 20a extending from its tip side to the small diameter portion 21 side.
are formed at equal angular intervals in the circumferential direction. Further, a female threaded portion 2 is provided on the inner peripheral surface of the small diameter portion 21.
1a is formed, and this female threaded portion 21a is adapted to be screwed into the threaded portion 16 of the screw shaft 5.

A protrusion 2 is formed inwardly at the entrance end of the large diameter portion 20 of the cap 19 having such a structure.
The inner diameter of the flange 15 is slightly smaller than the outer diameter of the flange 15.

3, 7, and 10 is a cover, which is formed in the shape of a conical tube with a large diameter on the tip side, and the rear end side of this cover 23 is constricted and has a screw shaft. A threaded cylinder 23a having an inner diameter into which the cylindrical part 17 at the rear end of the cylinder 5 is fitted is continuously formed.

As shown in FIG. 7, the cap 19 is integrally fixed to the inner conical proximal end of the cover 23 having such a structure by means of insert molding or the like.

On the other hand, the grip 4 is formed into a cylindrical shape as shown in FIGS. 3 and 7, and a female threaded portion 4a is formed on the inner circumferential surface of the tip thereof to be screwed into the threaded cylinder 23a of the cover 23. has been done.

As shown in FIGS. 3 and 9, an end grip 4b is screwed into the rear end of the grip 4 via a threaded cylinder 4c formed at its tip. The end grip 4b is formed to have a larger diameter toward the rear end, and an opening 4d for hanging it from a wall using a hook or the like is formed at the end on the larger diameter side.

By the way, what is indicated by the reference numeral 24 in FIG. 10 is a fibrillated yarn, and this fibrillated yarn 24 is formed as a continuous band-shaped tufted body 3 with a fixed strip 24a tied with a thread at its base end. ing.

Next, a method of using this embodiment configured as above will be explained.

First, as shown in FIG. 4, a notch 6a formed in the small diameter portion 6 at the tip of the helical shaft 5 of the handle 2 and a protrusion 9b formed inside the cylindrical portion 9 of the locking ring 8. The locking ring 8 is press-fitted to the outside of the small diameter portion 6 so as to fit. Then, the protrusion 7 formed on the small diameter portion 6 fits into the annular groove 9c formed on the inner circumferential surface of the cylindrical portion 9, and the locking ring 8 is fitted into the small diameter portion 6 without being able to rotate. Fixed.

Next, while elastically deforming the C-shaped open end of the locking ring 18 shown in FIG. 5b from the upper side, and the protrusion 18 on the inside thereof.
b, 18b are respectively fitted into the recess 5c.

In this state, the rotating frame 11 of the locking ring 8 is kept open as shown in FIG. As shown in FIG.
Then, the rotating frame 11 is closed, and the bundled portion of the tufted body 3 is sandwiched between the fixed frame 10 and the rotating frame 11. In such a case, as shown in FIG.
0a and 13 are located on the distal side of the fixing strip 24a, so even if the tufted body is pulled forward, the fixing strip 24a
If you get caught in these pins, you'll never get out.

On the other hand, since the tufted body 3 is continuous, the fixed frame 1
0 and the tufted body 3 pulled out from the tip of the rotating frame 11
The fixing strip 24a side is hooked to the protruding piece 14 of the locking ring 8 and wound around the spiral grooves 10b, 11a, and 9a formed on the surface side of the locking ring 8, so that the fixed frame 10 and rotation are The frame 11 is tied by the fixing strips 24a and is integrated.

Next, the fixed strip 24a side is fixed to the helical groove 5 of the helical shaft 5.
a, and the rear end of the tufted body 3 is wrapped inside the locking piece 18a of the locking ring 18, so that the bulge of the thread that ties the defibrated yarn 24 becomes the locking piece. 1
Since it is locked to 8a, the defibrated yarn does not come off and is securely locked. By this time, the defibrated thread 2
As shown in FIGS. 1 and 10, the tufted body 3 consisting of the tufted body 3 is radially bushy and spread out so as to cover the entire spiral shaft 5.

After the rear end of the tufted body 3 is locked to the locking piece 18a in this way, the handle 2 is moved as shown in FIG.
The cylindrical part 17 at the rear end is fitted inside the cover 23, and the threaded part 16 of the handle 2 is threaded into the female threaded part 21a of the small diameter part 21 of the cap 19 interposed inside the cover 23. As this screwing progresses, the tip of the large diameter portion 20 of the cap 19 approaches the flange 15 provided on the handle 2, and eventually, due to the presence of the notch 20a, the large diameter portion 20 is elastically deformed outward. The cap 19, the handle 2, and the cover 23 are integrated as shown in FIG. 10 because the inner protrusion 22 crosses over the flange 15 and reaches the front side of the flange 15 as shown in FIG. 10. .

In this way, when the cover 23 is attached to the screw shaft 5 around which the tufted body 3 is wound, since the cover 23 is in the shape of a tuft, the tufted body is attached to the first
As shown in Figure 0, it is pushed forward, creating a clean-looking duster. The duster 1 is constructed by screwing the grip 4 onto the threaded cylinder 23a of the cover 23.

In this way, after a predetermined period of time has elapsed using the duster with the tufted body 3 wrapped around it, if the tufted body becomes dirty, the handle 2 is removed from the cover 23 side by an operation completely opposite to the above-mentioned operation. The tufted body 3 may be removed from the screw shaft 5 and replaced with a new tufted body 3.

As is clear from the above description, the duster of the present invention includes a tufted body 3 made of defibrated yarn, and a tufted body 3 made of defibrated yarn.
A main screw shaft 5 constituting the handle 2 around which the screw is wound, a locking ring 8 detachably connected to the tip of the screw shaft 5, and a locking ring 8 detachably fitted in the middle of the base end of the screw shaft 5. A conical cylindrical cover 23 that integrally houses a cap 19 that is detachably engaged with the rear end of the base end of the screw shaft 5, and a grip that is screwed onto the rear end of the cover 23. 4, and the locking ring 8 has a fixed frame 10 and a rotating frame 11 with the cylinder divided into two.
Pins 10a and 13 are provided on the inside of both frames with their positions shifted from each other, and a protruding piece for locking the tufted body 3 is provided on the outer periphery of the fixed frame 10 or the rotating frame 11. 14, the tufted body rolled up in both frames is engaged with the pin, and since the fixing strip 24a side of the tufted body is located inward from the pins 10a and 13, the tufted body is not engaged. It will never slip out of the retaining ring, and in addition, the tufted body led out to the outside of the frame is locked by the protruding piece 14, so the tufted body on the tip side of the handle can be securely attached. can.

Furthermore, since the rear end portion of the tufted body wound around the screw shaft 5a is also securely locked by the locking piece 18a formed on the locking ring 18, installation and replacement of the tufted body are extremely easy. And it can be done reliably.

Further, the cover 23 attached to the handle 2 can be easily and reliably assembled because the cap 19 is integrally housed inside the cover 23 by insert molding. Since the annular protrusion 22 formed on the inner periphery of the tip is made to go over the flange 15 provided on the handle and engage the cap and flange, the cover 2 can be easily removed by swinging the duster during use.
Even if a rotational force is applied to 3 in the direction of pulling out from the handle, the rotational force is not strong enough to cause the protrusion of the cap to go over the flange and cause the cap to retreat, so the cover can be fixedly attached to the handle. As a result, the base of the tufted body wrapped around the handle can be pushed forward by the cover, and the appearance of the tufted body can always be maintained elegantly.

In addition, since the duster of the present application is made up of multiple parts as described above, if one piece is damaged, only that part can be replaced, thereby eliminating the need to waste the entire duster. It is possible to transport the duster in a small size, and it is possible to provide a truly useful duster.

[Brief explanation of drawings]

The figures are for explaining one embodiment of the present invention. Figure 1 is an overall side view, Figure 2 is a side view with the tuft removed from Figure 1, and Figure 3 is a handle,
An exploded perspective view of the cap, grip and cover,
FIG. 4 is a longitudinal sectional side view showing the attachment state of the screw shaft and the locking ring, FIG. 5 is a sectional view taken along the line A-A in FIG. 4, and FIG. 6 is a sectional view taken along the line B-B in FIG. Fig. 7 is a longitudinal sectional side view showing the combined state of the handle and cover, Fig. 8 is a sectional view taken along line C-C in Fig. 7, Fig. 9 is a longitudinal sectional side view of the rear end of the grip, and Fig. 10 is FIG. 3 is a partially enlarged longitudinal sectional side view of the tufted body attached. 1... Duster, 2... Handle, 3... Tufted body, 4...
... Grip, 5 ... Spiral shaft, 6 ... Small diameter part, 6a
... Notch, 7 ... Protrusion, 8 ... Locking ring, 9 ...
Cylindrical part, 10... Fixed frame, 11... Rotating frame, 10
a, 13...Pin, 14...Protrusion piece, 15...Flange, 16...Threaded part, 17...Cylindrical part, 18...
...Latching ring, 18a...Locking piece, 18b...Protrusion,
19...Cap, 20...Large diameter section, 21...
Small diameter portion, 22...Protrusion, 23...Cover, 24
...Defibrated thread.

Claims (1)

[Scope of utility model registration request] One end of the tufted body 3 made of defibrated yarn is secured to the tip of the handle 2 having the spiral groove 5a, and the tufted body 3 is inserted into the spiral groove 5.
Wrap the tufted body 3 with the tufted body 3 made of defibrated yarn in a duster in which the other end of the tufted body 3 is locked to the rear end of the handle 2 while being wound along the direction a. A screw shaft 5 which is the main body of the handle 2, a locking ring 8 which is removably fitted to the tip of the screw shaft 5 and locks one end of the tufted body 3, and a middle part of the base end of the screw shaft 5. A locking ring 18 is removably fitted on the outer periphery of the tufted body 3 and locks the other end of the tufted body 3, and a cap 19 is housed and fixed inside. A cover 23 that is detachably attached to the rear part, and the cover 23
The spiral shaft 5 has a recess 5c on the side surface in the middle of the rear end where the spiral groove 5a is not formed, and a grip 4 connected to the rear end thereof. a flange 15 formed on the screw shaft 5;
Continuing from the flange 15, a threaded portion 16 and a cylindrical portion 1
7, and the locking ring 8 has a cylindrical portion 9 having a helical groove 9a continuous to the helical groove 5a of the helical shaft 5 on the outer peripheral surface.
A fixed frame 1 formed by dividing a cylinder into two is formed on the front side of the cylindrical part 9 and is used to clamp and lock one end of the tufted body 3.
0 and the fixed frame 10 are continuously formed with a rotating frame 11 that opens and closes via a hinge part 12, and a pin 10a that engages with the inner peripheral surfaces of the fixed frame 10 and the rotating frame 11 when both frames are joined together. 13 protrudingly provided, and a spiral groove 11a continuous to the spiral groove 9a is provided on the outer peripheral surface of both frames,
A projecting piece 14 for hooking and locking the tufted body 3 is provided at the outer peripheral tip of either of the frames, and the locking ring 18 is formed in a C shape, and the screw shaft 5 is attached to the inner surface of the locking ring 18. The protrusion 18b that fits into the recess 5c and the engagement ring 1
8. The cover 23 is provided with a locking piece 18a on its outer upper end for hooking and locking the other end of the tufted body 3. The rear end cylindrical portion 17 is formed into a cylindrical shape into which the grip 4 is connected, and the rear end of the cylinder is formed into a threaded cylinder 23a to which the grip 4 is connected. and a cap 19 consisting of a small diameter portion 21 continuously formed on the rear side thereof.
The small diameter part 21 of the cap is fitted and fixed, and several notches 20a are formed along the axial direction at equal intervals in the circumferential direction of the large diameter part 20 of the cap, and the inner tip of the large diameter part 20 is cut into the above-mentioned shape. An annular protrusion 22 is formed with an inner diameter smaller than the diameter of the flange 15 of the screw shaft 5, and the small diameter portion 21 of the cap is provided with a female threaded portion 21a on the inner surface thereof to engage with the threaded portion 16 of the screw shaft 5. , one end of the tufted body 3 is locked by the fixed frame 10, rotating frame 11 and protruding piece 14 at the tip of the handle 2, and the other end of the tufted body 3 wound along the spiral groove 5a is locked by the locking piece. 18
A duster characterized in that the tufted body 3 is held in place by a and the tufted body 3 is pushed forward with the cover.