JPH036614Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a hose winding drum.

Conventionally, a hose winding drum provided in a winding machine for a watering hose or an air hose is composed of left and right flanges made of sheet metal, and a body part made of sheet metal installed between the flanges. The body is constructed of one member or divided into a plurality of wound bodies, and both ends thereof are each screwed to a flange.

However, such a conventional hose winding drum does not have a means for positioning the body with respect to the flange, and has a relatively large number of screws, so it takes time and effort to assemble the body. In particular, in the case where the body is divided into multiple wrapped bodies,
It took time and effort to assemble each wound body, and the manufacturing efficiency was poor.

The present invention focuses on the fact that resin molding of the flange and the wrapped body provides a large degree of freedom in its shape and structure.
The technical challenge is to make it easier to assemble the winding body to the flange using a geometrical fitting structure instead of conventional screw fastening, and to provide a hose winding drum with excellent manufacturability. be.

The configuration of the present invention to achieve the above technical problem is that the left and right flanges and a plurality of wrapped bodies installed between the flanges at circumferential intervals are each molded from a synthetic resin material, and the flanges include: A concave part and a convex part are formed in succession in the circumferential direction, the width of which increases from the central boss part toward the outer peripheral part, and which extend radially, and a locking part is provided on the boss part side of the concave part inside the flange, A locking piece that fits near the boss portion of the recess is provided at both ends of the wound body, and a fitting portion that fits into the locking portion of the recess is provided on the inner peripheral surface of the locking piece. be.

Embodiments of the present invention will be described below with reference to the drawings.

The hose winding drum a of this embodiment is installed in a hose winding machine A having a water supply function as shown in FIGS. 1 to 3, and has left and right flanges a ₁ ,
a ₁ ′ and three wrapped bodies a ₂ installed at circumferential intervals between the left and right flanges a ₁ and a ₁ ′ are each molded from a synthetic resin material.

The left and right flanges a ₁ and a ₁ ′ are disks of the same shape,
It is rotatably attached to and supported by a pipe frame b via a central boss portion 1. A water supply pipe 8 connected to a water faucet or the like via a water supply hose 7 is inserted into the boss portion 1 of the left flange _a1 , and a watering hose c is wound around the water supply pipe 8 and the wrapping body _a2 .
and are connected. A handle 9 is connected to the boss portion 1 of the right flange a ₁ ', and the hose winding drum a is rotated through the handle 9. A radially extending recess 2 is provided in the range from the boss ₁ to the outer periphery of the left and right flanges a 1 , a _{1 ′} .
and the convex portion 3 are continuously formed. These recesses 2 and protrusions 3 are based on the inner surface of each flange a ₁ , a ₁ '. The concave portion 2 is for positioning the wrapped body a ₂ , and has a fan shape that divides each flange a ₁ , a ₁ ′ into six parts, and the boss portion 1 of the flange a ₁ , a ₁ ′
From there, the width increases and the depth gradually decreases toward the outer periphery. A locking portion 4 for locking the wrapped body a 2 to each flange a ₁ , a ₁ ′ is provided on the boss portion 1 side of the recess ₂ . As shown in FIGS. 5 and 6, the locking portions 4 are formed by a U-shaped wall surface projecting from the wall surface of the recess 2, and two locking portions 4 are provided at intervals within the recess b. On the other hand, locking portions 4' having the same structure as the locking portions 4 of the recess 2 are provided on both sides of the convex portion 3 on the boss portion 1 side, so as to more firmly lock the wrapped body _a2 . It is considered.

The wrapping body a ₂ is curved in an arc shape and has a corrugated outer peripheral surface, and the troughs of the wave form are connected to the guide groove 1 of the hose c.
It is set as 0. A locking piece 5 that fits in the vicinity of the boss portion 1 of the recess ₂ is provided at both ends of the wound body a2, and two fitting portions 6 are provided on the inner peripheral surface side of the locking piece 5. There is. The fitting portions 6 fit into each of the locking portions 4 of the recess 2 and lock the wrapped body a ₂ against the left and right flanges a ₁ , a ₁ ′ without coming off. It is placed flush. On the other hand, in the wrapped body a ₂ , the portion connected to the base of the locking piece 5 is the locking piece 5.
The projecting piece 11 is made wider than that and protrudes laterally.
A fitting part 6' having the same structure as the fitting part 6 of the locking piece 5 is provided on both sides of the inner peripheral surface of the locking piece 5. This fitting part 6' fits into the locking part 4' of the convex part 3 adjacent to both sides of the recessed part 2, and this fitting strengthens the locking structure of the wrapped body _a2 . .

The hose winding drum a of this embodiment as described above is assembled in the following manner. That is, by inserting the locking pieces 5 at both ends of the wrapped body _{a 2 into} the recess 2 from the outer periphery of the left and right flanges a 1 and a ₁ ', and sliding the inside of the recess 2 toward the boss 1, the locking pieces 5 are removed. is fitted into the vicinity of the boss portion 1 of the recess 2 and abuts against its side wall, and the fitting portions 6 and 6' are fitted into the locking portions 4 and 4', respectively, and are wound around the left and right flanges _a1 and _a1 '. Attached body _A2 is positioned and fixed. In this way, each winding body _a2 is connected to the left and right flanges.
By assembling to a ₁ and a ₁ ', the hose winding drum a can be easily assembled.

In this embodiment, in order to more firmly lock the wrapped body a ₂ , a protrusion 12 is provided in each recess 2 to restrict the movement of the wrapped body a ₂ toward the outer periphery of the left and right flanges a ₁ , a ₁ ′. is provided. This protrusion 12 is a wrapped body in an assembled state.
It comes into contact with the outer peripheral surface of the locking piece 5 of _A2 , and has an inclined surface that slopes toward the boss part 1 side so that the locking piece 5 can ride over it when assembling the wrapped body _A2 . It is said to have a triangular shape.

Since the present invention is configured as detailed above, the locking pieces at both ends of the wound body are fitted into the outer peripheries of the recesses on the inner surfaces of the left and right flanges, and then moved to the radial center side (towards the boss part). As a result, the locking piece fits into the vicinity of the boss of the recess, the side ends of the protruding pieces on both sides of the locking piece abut the surface of the convex part, and the fitting portions of the locking piece and the protruding piece are locked. The wrapping body is positioned and fixed by fitting into and engaging with the portion, and the wrapping body can be easily assembled to the left and right flanges. Furthermore, in the assembled state, the locking piece of the winding body passes over the protrusion on the flange side and is engaged, so the winding body is prevented from wobbling after being engaged, ensuring a solid assembled state. be done.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the hose winding drum of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG.
FIG. 3 is an enlarged sectional view taken along the line -- in FIG. 2, FIG. 4 is an exploded perspective view, and FIGS. 5 and 6 are explanatory views of the assembly of the wound body. In the figure, a...Hose winding drum, _a1 ...Left flange, a1 _' ...Right flange, _a2 ...Wrap body, 1
. . . Boss portion, 2 .

Claims (1)

[Scope of utility model registration request] The left and right flanges and a plurality of wrapped bodies installed between the flanges at intervals in the circumferential direction are each molded from a synthetic resin material. The concave portions and convex portions that expand and extend radially are formed in succession in the circumferential direction alternately, and the concave portions and convex portions have a U-shaped engagement opening radially outward on the boss portion side of the concave portions and convex portions on the inside of the flange. While providing a stop portion, locking pieces that fit near the boss portion of the concave portion are provided at both ends of the wound body, and projecting pieces that come into contact with the surface of the convex portion are formed on both left and right sides of the locking pieces, A fitting portion that fits into the locking portion of the concave portion and the convex portion is provided on the inner circumferential surface side of the locking piece and the projection piece, and a fitting portion that fits with the locking portion of the concave portion and the convex portion is provided on the inside surface of the concave portion of the left and right flanges. A hose winding drum equipped with a protrusion that comes into contact with the outer peripheral surface of the locking piece.