JPH064254Y2 - Case with bobbin reel - Google Patents

Description

FIELD OF THE INVENTION This invention relates to a case containing a wound reel that is used, for example, in land surveying and other purposes to take a precise straight line.

2. Description of the Related Art Conventionally, examples of this type of case include, for example, the actual exploitation model
As disclosed in Japanese Patent No. 90800, a receiving shaft having one end portion of a shaft hole of a reel in an upright state fitted therein is provided upright on a bottom wall of a rectangular parallelepiped hermetically sealed case main body. It is known that a thread drawing hole is provided in the central portion of the wall.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the case described above, when the thread is pulled out from the case body, the pulled-out thread is rubbed against the edge portion of the pull-out hole. for that reason,
The edges of the withdrawal holes can be damaged.

In addition, the thread removed from the reel in the case body may be caught between the reel and the bottom wall of the case body and may be entangled in the receiving shaft, so that the thread cannot be pulled out from the case body.

An object of the present invention is to solve the above-mentioned problems and to provide a case in which the yarn can be smoothly drawn out and is easy to use.

Means for Solving the Problems In the case of the thread winding reel according to the present invention, a case body that holds the reel in a rotatable state is divided into two parts in the axial direction of the reel, and a pair of opposed parts sandwiching the drawn out thread. The inward projections for positioning in which the both ends of the shaft hole of the reel are respectively fitted are provided on the side walls of both half bodies in a facing manner, and between the circumferential surface of the coaxial hole and the outer surface of the projection. A gap for threading is formed.

In the case of the winding reel according to the present invention, the case body that holds the reel in a rotatable state is composed of a pair of halves which are divided into two parts in the axial direction of the reel and which face each other with the drawn yarn sandwiched therebetween. , The thread is pulled out from any position on the opposite edges of both halves.

In addition, since the positioning inward projections in which both ends of the shaft hole of the reel are fitted are provided on the side walls of both halves so as to face each other, the reel can be rotated without rattling.

Further, since the gap through which the yarn passes is formed between the circumferential surface of the coaxial hole and the outer surface of the protrusion, the yarn detached from the reel runs over the protrusion through the gap, so that the yarn does not get caught in the protrusion.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Referring to FIG. 1 and FIG. 2, a spool reel (11)
And the case (12) for this is shown.

The reel (11) includes a plastic reel body (21) around which the thread S is wound, and a plastic holding shaft (22) surrounding the shaft hole (11a) of the reel (11). A through hole (23) having a circular cross section is provided at the axis of the reel unit (21). Holding tube (2
2) is a left and right cylindrical body (24a) as shown in detail in FIG.
It consists of (24b). The two cylindrical bodies (24a) and (24b) are detachably connected to each other at their opposite ends by a connecting means not described in detail. Detachment prevention flanges (25a) (25b) are provided at the other ends of both the cylindrical bodies (24a) (24b).

The case (12) has a case body (31) composed of a pair of left and right halves (31a, 31b). Both halves (31a) and (31b) are made of transparent plastic and are integrally molded.
It is composed of disc-shaped side walls (32a) (32b) and cylindrical body walls (33a) (33b) slightly larger than the outer diameter of (21). The side walls (32a) (32b) of both halves (31a) (31b) face each other with an interval slightly larger than the width of the reel body (21), and the body walls (31a) (31b) of both halves are , The edges of the opening are butted. Inward protrusions (34a) (34b) having a U-shaped vertical cross section are provided at the center of both side walls (32a) (32b), and these are provided at the left and right ends of the reel shaft hole (11a). It is fitted with C. Inward protrusions (35a) (35b) extending in the axial direction of the body walls and having a U-shaped cross section are provided at four locations in the circumferential direction of the body walls (33a) (33b). Both body walls (31a) (31b)
Flange (36a) (36b) is provided at the opening edge of the and two ears (37a) (37b) (38a) (38b) protruding from the flanges (36a) (36b) in opposite directions are provided. Has been. One ear (37a) (37b) of both halves (31a) (31b) is fixed with eyelets (39), the other ear of both halves (31a) (31b) (38a) (38b), These include concave and convex mating parts (41) (4
By forming 2), it is detachably connected. Then, the ends of the ears (37a) (37b) fixed by the eyelet (39) are pinched, and V-shaped notches (43a) (43a) (43a) are provided on both sides of the ears.
b) and V-shaped notches (44a) (44b) for thread cutting are respectively formed. Further, on the ear (37a) of the left half body (31a), the cutting edge mounting portion (4a) is provided close to the cutting V-shaped notch (44a).
5) is provided, and the cutting blade (46) has a V for cutting the cutting edge.
It is fixed so as to face the notch (44a).

Referring to FIG. 1, when the thread S is used, when the thread S is pulled, the reel (11) is rotated in the case (12) and any one of the halves (31a) (31b) is rotated. The thread S is pulled out from the position.
If the reel (11) rotates, the reel (11)
It is received at the tip of b) and the rotation and sliding resistance of the reel (11) is extremely small. Further, since the holding shaft (22) is positioned by the protrusions (34a) (34b), the reel (11)
Is designed to rotate smoothly. As shown in FIG. 3, while the thread S is being pulled out, even if the thread S is disengaged from the reel (11), if the thread S is strongly pulled, the disengaged thread S will leave a gap C.
To get over the protrusions (34a) and (34b) through
Does not get tangled.

When the use of the thread S is stopped, the pulled-out thread S is hooked on the bottoms of the thread hooking V-shaped notches (43a) (43b) as shown in FIG. In this way, the thread S will not be pulled out any more and will not be drawn into the case (12).
Then, the thread S is wound around the ears (37a) (37b) half way, and is brought to the cutting edge (46) and pressed against the cutting edge (46), so that the thread S is cut by the cutting edge (46). To be done.

EFFECTS OF THE INVENTION According to the present invention, the yarn is pulled out from any position on the opposite edges of the two halves of the case body, so that the case body is not damaged by rubbing against the pulled yarn.

Also, because the reel can be rotated without rattling,
The thread can be pulled out smoothly.

Furthermore, since the thread that has come off the reel passes over the projection through the gap and does not get caught in the projection, there is no fear that the thread cannot be pulled out from the case body.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a perspective view including a crushed cross section, FIG. 2 is a cross sectional view, and FIGS. 3 and 4 are side views showing a usage state. (11) …… Reel, (11a) …… Reel shaft hole, (12) …… Case, (31) …… Case body, (31a) (31b) …… Half body, (32a)
(32b) ... Side wall, (34a) (34b) ... Protrusion, S ... Thread, C ...
… Gap.

Claims (1)

[Scope of utility model registration request] 1. A pair of case main bodies (31) holding a reel (11) in a rotatable state, which are divided into two in the axial direction of the reel (11) and which face each other with a drawn thread S interposed therebetween. Half (31a)
(31b), and the inward projections (34a) for positioning, in which both ends of the shaft hole (11a) of the reel (11) are fitted into the side walls (32a) and (32b) of both halves (31a) and (31b), respectively. ) (34b) are provided so as to face each other, and a gap C for passing the thread S is formed between the peripheral surface of the coaxial hole (11a) and the outer surfaces of the protrusions (34a), (34b).