JPH0610241Y2 - Standard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a staff, and more particularly to improvement of a core around which a tape is wound.

(Prior Art) The tape of the staff (ribbon rod) is wound around a winding core (tyco) that is rotatably mounted on the support frame. However, due to the nature of the staff, the tape is used after being removed from the support frame. In some cases, the base end of the tape is not fixed to the winding core and is generally removable.

For example, according to Japanese Utility Model Application Laid-Open No. 50-31944, a T-shaped hooking portion provided on a base end portion of a tape is detachably attached to a slit provided on a winding core. In this way, the hook provided on the base end of the tape can be freely attached to and detached from the pin provided on the winding core.
From Japanese Patent Laid-Open No. 104304, there is known a tape in which a stepped pin provided at a base end portion of a tape is detachably attached to a long hole provided in a winding core.

However, the T-shaped hooking part and the stepped pin that can be freely attached to and detached from the slit or the long hole require an operation such as twisting the base end portion of the tape at the time of attachment and detachment, which makes the attachment and detachment difficult and troublesome. In addition, there is a problem in that the hook having a hook on the tape becomes an obstacle when the tape is detached and used.

(Problems to be solved by the invention) Therefore, according to the present invention, it is easy to attach and detach the tape to and from the core, and when the tape is hung from the roof of a building construction site and the base end portion of the tape is taken. The purpose is to provide a staff that does not fall off the core.

(Means for Solving the Problems) In order to achieve the above object, the staff of the present invention is a support frame.
A through hole (4) is provided in the base end portion (3a) of the tape (3) wound around the outer peripheral surface of the winding core (2) rotatably attached to (1), while
A groove (5) into which the base end of the tape (3) is fitted is formed in a part of the outer peripheral surface of the core (2) so that the tape (3) is provided on one side wall of the groove (5). ), A locking pin (6) to be inserted into the through hole (4) is projected, and the core (2) is provided at the bottom of the groove (5).
It is characterized in that a sandwiching portion (5a) for holding the tip end portion of the tape (3) is provided, which is slightly deviated laterally with respect to the center line of the tape.

(Operation) By inserting the locking pin (6) into the through hole (4) of the tape (3), the base end portion (3a) of the tape (3) is removed from the groove (5) of the winding core (2). It does not come out naturally due to gravity. When removing the tape (3) from the winding core (2), push the tape (3) toward the tip of the locking pin (6) with your finger to release the locking pin (6) from the through hole (4). Then, the base end portion of the tape (3) may be pulled out from the gap between the side walls of the groove (5) facing the tip of the locking pin (6).

(Example) Hereinafter, an example will be described with reference to the drawings.

As shown in FIG. 1, the support frame (1) has a pair of side plates (7) arranged in parallel at a required interval, and a connecting rod (8) erected on the upper ends of the side plates (7) on both sides. Attach the handle (9) to the bearing hole (1) at the center of the side plates (7) on both sides as shown in FIG.
The edge covers (11), which are bored in (0) and fitted to both ends of the winding core (2), are rotatably inserted in the bearing holes (10), and the side plate is attached to the outer surface of one edge cover (11). Place the handle (1
2) is installed. As shown in FIG. 4, the core (2) rotatably supported by the bearing holes (10) of the side plate (7) on the edge covers (11) fitted to both ends as described above, is shown in FIG. A groove (5) into which the base end portion (3a) of the tape (3) is fitted is provided in a part of the outer peripheral surface of the tape so as to be recessed toward the center. When the tape (3) is wound around the outer peripheral surface of the winding core (2), this groove (5) is one side wall (hereinafter referred to as “reference side wall”) on which the base end (3a) of the tape (3) first comes into contact.
(13) ”is a plane approximately parallel to the plane (imaginary) that passes through the center of the core (2) and divides the core (2) in the axial direction. ) Is arranged so as to be biased to the side on which the wrapping occurs first, and the side wall facing the reference side wall (13) (hereinafter referred to as the “guide side wall (14)”) has a reference side wall
It is parallel to (13) and opposite to the reference side wall (13) with a gap approximately the same as the wall thickness of the base end (3a) of the tape (3), and the other parts are aligned with the core (2). It is formed so as to be inclined with respect to the reference side wall (13) so as to gradually increase the distance from the center to the outer side in the radial direction. That is, the groove (5) has a substantially L-shaped cross section and the tape
The sandwiching portion (5a) of the base end portion (3a) of (3) is provided so as to be slightly deviated from the center line of the winding core (2). Both ends are opened inside the reference side wall (13) of the groove (5) in the winding core (2) and the reference side wall (13)
A small void chamber (16) with a slit (15) is formed in the small void chamber (16) with a rivet inserted as a locking pin (6) in the small holes formed near both ends. ), And the locking pin (6) penetrates through the slit (15) and projects from the reference side wall (13) toward the guide side wall (14). On the other hand, through holes (4) through which the locking pins (6) can be inserted are formed near both side edges of the base end portion (3a) of the tape (3). The tape (3) fits into the groove (5) with its base end (3a) along the guide side wall (14) and elastically deforms a little while inserting its tip into the sandwiching part (5a) and through hole. Insert the locking pin (6) into (4), and then attach the base end (3a) to the reference side wall (13).
Is wound around the outer periphery of the winding core (2).

In the present invention, the pinching portion (5a) of the groove (5) is slightly deviated to the side from the center of the winding core (2) for the following reason. In other words, when unwinding the tape (3) from the core (2), the core (2) rotates in the direction opposite to that when winding the tape (3), and the tape
Although it will rotate slightly due to inertia even after (3) is completely unwound, if the pinching part (5a) of the groove (5) is present at the center position of the winding core (2), the tape will move as shown in FIG. Even if (3) is caught on the locking pin (6) at the moment when it is completely unwound, the rotation of the winding core (2) due to inertia after that causes the passage of the tape (3) through hole (3) as shown in FIG. There is a risk that the locking pin (6) will escape from the 4) and only the tape (3) will fall, but as with the present invention, the groove (5)
This is because if the pinching portion (5a) is slightly deviated from the center of the winding core (2), the risk of tape drop due to rotation of the winding core (2) due to inertia can be almost eliminated. That is, as shown in FIG. 5, when the winding core (2) further rotates slightly due to inertia after the tape (3) is completely unwound, the direction of the tape (3) is changed from the center line of the winding core (2). Since it is displaced, the direction of the tape (3) will be positioned on the center line of the winding core (2) and slightly reversed so that the tape (3) will be stabilized by pulling with the tape (3), as shown in FIG.
By this reversal, the locking pin (6), which had been released from the through hole (4) of the tape (3), is completely inserted into the through hole (4) again and the tape (3) is prevented from falling. It is what is done.

(Effects of the Invention) The present invention is as described above, and has an effect that it is very easy to use because the base end portion of the tape can be attached and detached extremely easily in a normal posture without twisting with respect to the winding core. In addition, when the tape is removed and used, there is no obstruction such as a hook at the base end portion of the tape, so that the tape is easy to use. Furthermore, while unraveling the tape, it has the effect of preventing the accident that the last base end of the tape falls off the core due to the gravity of the tape when it is hung from the rooftop of the building and only the tape falls. Is.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is an overall perspective view, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is FIG. 4 is a cross-sectional view taken along the line BB, FIG. 4 is a perspective view of the tape base end portion and the winding core, and FIG. 5 is a partial cross-sectional view showing a state in which the winding core is slightly rotated by inertia after the tape is completely unwound. , Fig. 6 shows that after the core rotates due to inertia
It is a partial cross section figure which shows a stable state by reversing. Different from the present invention, FIGS. 7 and 8 show an example in which the position of the sandwiching portion of the groove provided in the winding core is arranged on a line passing through the center of the winding core. FIG. 7 shows the tape. Is a partial cross-sectional view showing the state at the moment when the tape is completely unwound, and FIG. 8 is a partial cross-sectional view showing the state where the winding core is further rotated slightly due to inertia after the tape is completely unwound. (1) …… Supporting frame, (2) …… Winding core, (3) …… Tape, (3a)…
… Base part of tape, (4) …… through hole, (5) …… groove, (5a) ……
Groove insertion part, (6) …… Locking pin, (13) …… Reference side wall, (1
4) …… Side wall of the guide.

Claims (1)

[Scope of utility model registration request] 1. A winding core (2) rotatably mounted on a support frame (1).
A through hole (4) is provided in the base end portion (3a) of the tape (3) to be wound around the outer peripheral surface of the tape (3), while the tape (3 ) Is provided with a groove (5) into which the base end part of the tape (3) is fitted, and the through hole of the tape (3) is provided on one side wall of the groove (5).
The locking pin (6) to be inserted into (4) is projected and the groove
A staff having a pinching part (5a) for holding the tip part of the tape (3), which is slightly deviated laterally with respect to the center line of the winding core (2), in the bottom of the (5).