JP2003225874A - Automatically rolling-in pushing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single-hand operated, automatically rolling-in pushing device which can be correctly extended and contracted without slipping. <P>SOLUTION: One end of a reeling strip 2 of stainless foil overlapped with a tight winding part 19 of an expansion member 1 having closed spiral curl to have rolling-in performance is wound around a gear reel 3. A drive gear 4 of a worm is engaged with the gear reel 3 to be rotatable by an input means 5 such as a motor. The expansion member 1 is extended by a switch 6, and engagement between the gear reel 3 and the drive gear 4 is released by a return part 7 to contract the expansion member 1. <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 automatic winding pusher which can be extended to push a switch or a door and also serves as a tape measure.

[0002]

2. Description of the Related Art As a conventional elastic pressing tool, a cylindrical transformation spring 1 having a tip tool 5 is stretched to form a tubular portion support 2 as disclosed in Japanese Patent Application Laid-Open No. 8-281574 by the present applicant. It is known that the spiral part support 7 is held by the spiral part support 7, and the spiral part support is connected to the rotation urging spring 8 to be automatically wound. Since this one is provided with a rotation biasing spring 8, the extended cylindrical transformation spring 1 is automatically contracted by the power of the spring.

Further, as disclosed in Japanese Unexamined Patent Publication No. 62-269001, there is known one in which the belly of a cylindrical tape measure is opened and wound in a spiral shape so that it can be automatically contracted by the power of a mainspring. . This is a tape measure, but since it is a cylindrical tape measure, it has high rigidity, so you can push a distant object,
It is also possible to push the door open.

Further, as in US Pat. No. 3,434,674, there is also known one in which the tubular stretchable body 14 is sandwiched by the pinch rolls 44, 48 and fed out or compressed by the motor 26.

Those driven by pinch rolls slip when water or dust adheres to them.

[0006]

The conventional elastic pusher described above is disliked when it is stretched by directly touching it with the hand because it is dirty, and when it is a pinch roll, it is not suitable for water or dust. Since it slips, there is a problem that it cannot be expanded and contracted reliably.

The present invention is intended to solve the problems of the conventional structure as described above, and can be extended and contracted without directly touching the elastic body, and is not a pinch roll and does not slip. In addition, it is an object of the present invention to provide a lightweight, compact and simple automatic winding presser which can be accurately extended and contracted.

[0008]

In order to achieve the above object, the present invention has a close-contact spiral portion 1 of a retractable expandable body 1.
The feeding band 2 wound around 9 is wound around the gear reel 3,
The drive gear 4 and the input means 5 are connected to the gear reel 3,
It was made possible to carry out the continuous feeding without slipping.

The second means for solving the problems is that the elastic body 1 itself is made to have a close spiral habit, and the mainspring is omitted, while making it lightweight and small and simple.

Further, in the third means for solving the problem, in order to realize accurate feeding without slipping, the feeding band 2 is a high tension film such as a metal foil or a PET film. A fourth problem solving means is one in which the feeding band 2 is a constant load spring, and a force is applied in the returning direction of the expandable body 1 so that the mainspring is omitted.

In the fifth and sixth means for solving the problems, a motor or one-handed input tool is provided as the input means 5 for driving the gear reel 3 so that both hands are not required for operation, and the telescopic body 1 is expanded and contracted with only one hand. I made it possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The stretchable body 1 itself is squeezed with a stick to give a spiral habit of close contact, so that the spiral shape is returned to the spiral shape without a mainspring. The telescopic body 1 to which the tip 10 is fixed by the mounting portion 12 is opened along the support column 14 to form the close contact spiral portion 19. The close contact spiral part 19 generates a force for contracting the expandable body 1 like a mainspring.
(Engageability)

The feeding band 2 is wound around the close contact spiral part 19 and is connected to the shaft 18 near the shaft 18 with an adhesive tape. The other end of the feeding band 2 is wound around the gear reel 3, and since it is a stainless steel material of 0.05 mm, it does not become bulky even if the number of turns is large.

The gear reel 3 includes a worm drive gear 4
Are engaged with each other, and the drive gear 4 is the input means 5 of the motor.
It is designed to be driven by. The input means 5 of the motor is turned on and off by a switch 6, and a current is given from a battery 8.

The input means 5 of the motor is slidable in the receiving box 54, and is restored upward after sliding by the restoring spring 56. At this time, the drive gear 4 is separated from the gear reel 3 and disengaged. A spring 70 for restoring the returning portion 7
The worm integrated with the motor, which is the input means 5, can be removed from the gear reel 3 by pushing it down against.

In the automatic winding pusher having the above structure, the switch 6
Press to push the drive gear 4 and the gear reel 3 by the input means 5.
Is applied to wind up the feeding band 2, so that the stretchable body 1 is fed out from the tightly wound spiral portion 19 that is overlapped and extended. Various operations such as pressing a remote switch with the tip tool 10 can be performed. Furthermore, the return part 7 is pushed down to free the gear reel 3,
The expandable body 1 can be contracted by utilizing the self-rolling property of the close contact spiral part 19.

The feeding zone 2 is preferably a high-strength thin film, and is 0.0
A 5-0.2 mm stainless steel film, a PET (polyester) film, or the like is used. By using the feeding band 2 as a constant-load spring and reversing the gear reel 3 and fixing it by winding as shown in FIG. 2, there is an advantage that the elastic body 1 can be wound even if it does not have a winding tendency. (N type constant force spring)

Another embodiment is shown in FIG. This differs from the above embodiment in the presence or absence of a mainspring and the method of releasing the gear lock. That is, in this embodiment, since the stretchable body 1 itself does not have the self-rolling property, the spiral spring 90 provides the winding property. The feeding band 2 is wound around the close contact spiral part 19 so that the inner end is fixed to the main reel 9 shown in FIG.

A swing method is adopted as a method for releasing the gear lock. That is, the motor which is the input means 5 is swingable around the fulcrum 52 and is returned by the restoring spring 56. By moving the return portion 7 fixed to the motor, the gear reel 3 and the drive gear 4 are disengaged from each other, and the feeding band 2 is loosened.
0 works and the stretchable body 1 shrinks.

A further embodiment is shown in FIG. This one is
A one-handed input tool is provided as the input means 5, and
A lever-type manual input tool is attached for feeding out the telescopic body 1 having the same winding habit as in the embodiment. That is,
The gear reel 3 can be a one-way gear, the drive gear 4 for driving the one-way gear can be fan-shaped, and the projecting portion of the input means 5 can be moved in a rugged manner to send out the telescopic body 1. (Return with the restoring springs 58 and 59.)

The return section 7 also serves as a projecting section of the input means 5. When the return section 7 is pushed in, the drive gear 4 and the gear reel 3 are disengaged from each other, the feeding band 2 is loosened, and the telescopic body 1 is contracted.

The final embodiment is shown in FIG. In this device, a gear reel 3 with a handle 39 as a one-handed input device is provided as the input means 5, and the end of the feeding band 2 is stopped via a pulley 32. The gear reel 3 provided with the handle 39 is meshed with a stopper 70 for preventing reverse rotation. By lifting the return portion 7 against the restoring compression spring 51, this meshing is released and the telescopic body 1 is contracted. It is designed to be profitable. When the handle 39 is rotated in the direction of the arrow, the stopper 70 escapes and operates as a one-way clutch. In this product, a tubular stretchable body 1 is opened and wound to open the back, and is held by a column 14 from the back opening side.

In the automatic winding pusher shown in FIG. 5, the handle 39 is rotated to extend and retract the telescopic body 1, and the return portion 7 is slightly lifted up and contracted by the force of the mainspring 90, which is advantageous in that the operation is easy to understand.

[0024]

As described above, in the automatic winding pusher according to the present invention, the feeding band 2 wound around the close contact spiral portion 19 of the retractable expandable body 1 is also wound around the gear reel 3, and the gear reel 3 is wound. Since the drive gear 4 and the input means 5 are connected to 3 so that the extendable body 1 can be continuously fed out, the gear reel 3 can be rotated to extend or contract without touching the extendable body 1. It is possible to move accurately without slipping.

According to the second aspect of the present invention, since the elastic body 1 itself has a close-wound spiral habit and is stable in both the extended shape and the close-contact spiral shape, the mainspring is not required, and the size and weight can be reduced.

According to the third aspect of the present invention, since the feeding band 2 is made of a high-strength thin film, the extruding of the stretchable body 1 can be further strengthened.

According to the fourth aspect of the present invention, since the feeding band 2 is a constant load spring and is wound in the reverse direction on the gear reel 3 so that a force is applied in the returning direction of the expandable body 1, the mainspring is unnecessary. Can be made smaller and lighter.

According to the fifth and sixth aspects of the invention, since the motor or the one-handed input tool is provided as the input means 5, continuous feeding can be performed with one hand, and of course automatic winding can be performed with one hand.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view of the second embodiment of the present invention.

FIG. 4 is a side view of the third embodiment of the present invention.

FIG. 5 is a side view showing a fourth embodiment of the present invention.

[Explanation of symbols]

1 ·· Stretchable body 2 ... Feeding zone 3 ... Gear reels 4 ... Drive gear 5 ·· Input means 6 ・ ・ Switch 7 ··· Return part 8 ... Batteries 9 ... Mainspring 10 ... Tip tool 11 ... Frame 12 ... Mounting part 13 ... 14 ... Supports 18 ... 19 ... Adhesive spiral part

Claims (6)

[Claims] 1. A feeding band 2 superposed on a close contact spiral portion 19 of a retractable expandable body 1 is also wound around a gear reel 3, and a drive gear 4 and an input means 5 are connected to the gear reel 3.
An automatic winding pusher characterized in that the stretchable body 1 can be continuously drawn out. 2. The automatic winding pusher according to claim 1, wherein the stretchable body 1 itself has a close-wound spiral habit, and is made stable in both an extended shape and a close-wound spiral shape. 3. The automatic winding pusher according to claim 1, wherein the feeding band 2 is made of a high tension thin film. 4. The extension body 2 is a constant load spring, and the expansion / contraction body 1 is provided.
The automatic winding pusher according to any one of claims 1 to 3, wherein a force is applied in the returning direction of the. 5. The automatic winding pusher according to claim 1, wherein a motor is provided as the input means 5. 6. The automatic winding pusher according to claim 1, wherein a one-handed input tool is provided as the input means 5.