JP2003160279A - Hose take-up reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To neatly wind a hose of a hose take-up reel along a flat outer periphery while being connected in a recessed groove provided recessed at a core of a hose bobbin. <P>SOLUTION: A bobbin side joint 3b of a hose joint 3 is detachably enclosed in a recessed groove 1a of a core 1 to prevent the bobbin side joint 3a from projecting from the outer periphery of the core 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 a hose take-up reel capable of exchanging a hose wound around a hose bobbin. Specifically, a hose bobbin consisting of a core with a cylindrical outer shape and disc-shaped flanges protruding from both sides of the frame is rotatably supported, and the hose wound around this hose bobbin is used as the center core. The present invention relates to a hose take-up reel connected through a provided hose joint.

[0002]

2. Description of the Related Art Heretofore, as a hose take-up reel of this type, as disclosed in, for example, Japanese Utility Model Publication No. 7-2530, a hose bobbin (take-up drum) has a hollow core (drum body). , As a hose fitting inside it,
A water supply connecting pipe bent in a substantially L shape is provided, and one end side of the water supply connecting pipe is made to project from a through hole formed in the outer periphery of the core, and a bobbin side joint (hose connection port) bent in a substantially V shape at the projecting end. ) Is detachably fitted, and a hose is connected to this bobbin side joint.

[0003]

However, in such a conventional hose take-up reel, since the bobbin side joint of the hose joint is provided so as to project from the outer periphery of the center core, this hinders the hose. There is a problem that the winding shape is disturbed and the winding length of the hose is affected, so that the winding length is substantially shortened. Furthermore,
Since the hose is wound on the bobbin side joint projecting from the through hole, there is also a problem that the hose is broken at this location or the hose is apt to be broken.

The invention according to claim 1 of the present invention is intended for winding a hose along a flat outer circumference while connecting the hose in the groove. In addition to the object of the invention described in claim 1, the invention described in claim 2 aims to easily connect the hose joint. In addition to the object of the invention described in claim 1 or 2, the invention described in claim 3 is intended to easily replace the hose.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is such that a concave groove 1a is formed in the core 1 so as to surround the center of the disk-shaped collar portion 2. Was set up,
A hose joint 3 to which a hose H is connected in the groove 1a
The bobbin side joint 3b is detachably accommodated and deployed. The invention described in claim 2 is claim 1
In the structure of the invention described above, the hose joint 3 has a structure in which the frame-side joint 3a and the bobbin-side joint 3b are axially fitted to each other and detachably connected to each other. 3a2 and the surface of the recessed groove 1a facing the proximal end cylindrical portion 3b1 of the bobbin side joint 3b inserted thereinto,
It is characterized in that a guide means 4 is formed to regulate the position of the bobbin side joint 3b while guiding it to the frame side joint 3a when the bobbin side joint 3b is inserted. According to a third aspect of the present invention, there is provided the hose joint 3 according to the configuration of the first or second aspect.
However, the frame side joint 3a and the bobbin side joint 3b are axially fitted and inserted to each other so as to be detachably connected, and a locking means 3c is reciprocally movable across both of them in a direction intersecting the fitting direction. The lock means 3c is provided, and is structured so as to be engaged with each other at the time of the insertion and hold the connected state of the both.
It is characterized in that the operation side is extended within the range in which it does not protrude from the concave groove 1a of the core 1 and the engaging convex portion 3c2 is provided in a protruding manner.

[0006]

According to the invention of claim 1, the bobbin side joint 3a is detachably housed in the concave groove 1a of the center core 1 so that the bobbin side joint 3a does not protrude from the outer periphery of the center core 1. It is a thing. According to a second aspect of the present invention, in addition to the configuration of the first aspect, the hose joint 3 is a frame side joint 3
a and the bobbin side joint 3b are axially fitted to each other and removably connected to each other. The frame side joint 3a
Tip cylindrical portion 3a2 and bobbin side joint 3b fitted therein
On the surface of the concave groove 1a facing the base end cylindrical portion 3b1 of the above, since the guide means 4 for restricting the position while guiding to the frame side joint 3a along with the insertion of the bobbin side joint 3b is added, By fitting the bobbin side joint 3b along the guide means 4, the bobbin side joint 3b is guided toward the frame side joint 3a and is accurately positioned. The invention of claim 3 is
In addition to the structure according to claim 1 or 2, the hose joint 3 axially fits the frame-side joint 3a and the bobbin-side joint 3b into each other so as to be detachably connected, and the hose joint 3 extends over both of them. The lock means 3c is provided so as to be capable of reciprocating in a direction intersecting with the fitting direction, and is engaged with the lock means 3c at the time of fitting to hold the connected state of the two.
Since the operating side of c is extended within the range where it does not project from the concave groove 1a of the core 1, and the locking convex portion 3c2 is provided in a protruding manner, a finger is hooked on the locking convex portion 3c2 to pull out the locking means 3c. As a result, the frame side joint 3a and the bobbin side joint 3b are disengaged from each other and can be separated.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 to 4, the cylindrical portions B1 and B2 are provided at the outer center of the hose bobbin B, which is composed of a cylindrical core 1 and disc-shaped collars 2 projecting from the left and right sides thereof. Of the hose bobbin B by integrally molding them with a synthetic resin so as to project, and by loosely fitting the cylindrical parts B1, B2 and the supporting cylinder parts A1, A2 integrally molded with the frame A made of synthetic resin, respectively. It shows a case where is rotatably supported.

The core 1 is formed so as to surround the center of the disk-shaped flange portion 2 by forming a groove 1a in the entire axial length thereof. The groove 1a and the disk-shaped flange portion are formed. The central holes 2a and 2b opened at the center of 2 are communicated with each other. In the case of the present embodiment, the concave groove 1a has a substantially U-shaped cross section as shown in FIG.

A central hole 2a opened at the center of one disk-shaped flange portion 2 and a supporting cylinder portion A1 of the frame A communicating with the central hole 2a.
The frame side joint 3a of the hose joint 3 described later.
The bobbin side joint 3b which is attached to the frame A immovably and non-rotatably and is detachably connected to the frame side joint 3a in the U-shaped groove 1a of the core 1. Store and deploy.

The hose joint 3 is composed of a frame-side joint 3a and a bobbin-side joint 3b which are formed in a cylindrical shape, and the bobbin-side joint 3 extends in the axial direction of the frame-side joint 3a.
A lock means 3c is provided which is connected by inserting and inserting b and which is reciprocally movable in a direction intersecting with the inserting direction, and is engaged with the lock means 3c to hold the connected state. It is a structure.

The frame-side joint 3a has a base end cylindrical portion 3a1 for connecting an auxiliary hose H'which communicates with a water supply source such as a faucet or an air supply source, and a central hole of the disk-shaped collar portion 2. It is composed of a tip cylinder portion 3a2 penetrating through 2a, and this tip cylinder portion 3a2 is projected into the U-shaped concave groove 1a.

The bobbin side joint 3b includes a base end tube portion 3b1 fitted into the tip end tube portion 3a2 of the frame side joint 3a, and a tip end tube portion 3b2 for connecting the main hose H wound around the hose bobbin B. Composed of.

In the case of the illustrated example, as shown in FIGS. 1 and 2, the inner diameter of the base end cylindrical portion 3b1 is set to the frame side joint 3a.
Is formed to have a diameter larger than the outer diameter of the tip tubular portion 3a2, and is fitted in a watertight manner on the outer side of the tip tubular portion 3a2 via an annular packing 3a3, and on the outer periphery of the tip tubular portion 3b2 of the bobbin side joint 3b. ,
The hose H is connected by inserting the base end H1 and tightening it from the outside with a connection nut 3b4 having a conventionally known structure via a sleeve, and the auxiliary hose H'is also connected. On the contrary, the outer diameter of the base end cylindrical portion 3b1 of the bobbin side joint 3b may be formed to be smaller than the inner diameter of the distal end cylindrical portion 3a2 of the frame side joint 3a, and both of them may be fitted and inserted.

Further, the base end cylindrical portion 3 of the bobbin side joint 3b.
A through hole portion 3b5 into which a locking means 3c to be described later is inserted is formed in b1 in a direction intersecting with a fitting and inserting direction of the distal end cylinder portion 3a2 of the frame side joint 3a. This through hole 3b5
As shown in FIG. 4, a pair of front and rear opening faces 3b6, 3b6 that face each other in the axial direction of the bobbin side joint 3b and a pair of left and right opening side faces 3b7 that face each other so as to sandwich the distal end tubular portion 3a2 of the frame side joint 3a. , 3b7, and the outer shape thereof is symmetrical in the penetrating direction of the through hole portion 3b5, and the outer width dimension D1 in the penetrating direction is orthogonal to the outer width of the opening side surfaces 3b7, 3b7. It is formed in an oval shape that is longer than the dimension D2.

In the case of this embodiment, the locking means 3c is
It is a shirt plate formed in the shape of a strip plate, and its tip end side reciprocates in a direction intersecting the fitting insertion direction with respect to a through hole portion 3b5 formed in the proximal end cylindrical portion 3b1 of the bobbin side joint 3b. Freely supported, and at the tip thereof, a locking claw 3c1 is formed which is engaged with an annular groove 3a4 circumferentially provided on the tip cylindrical portion 3a2 of the frame side joint 3a so as to be immovable in the axial direction. In the illustrated example, the locking claw 3c1 has an annular groove 3a4 as shown in FIG.
It has such a shape that it engages at three points at substantially equal intervals in the circumferential direction.

The operating side of the shirt board 3c is
The core 1 is extended in a range that does not protrude from the U-shaped groove 1a, and a locking projection 3c2 is provided at the base end thereof so as to be easily caught by the operator's finger.

On the surface of the U-shaped groove 1a of the core 1, the tip end cylindrical portion 3a2 of the frame side joint 3a and the base end cylindrical portion 3b1 of the bobbin side joint 3b inserted thereinto are opposed to each other. The guide means 4 is formed to regulate the position of the bobbin side joint 3b while guiding it to the frame side joint 3a when the bobbin side joint 3b is fitted. In the case of the present embodiment, the guide ribs 4a for guiding the bobbin side joint 3b to the frame side joint 3a are provided on the bottom surface of the U-shaped groove 1a so as to project, and the bobbin side joint 3b.
Guide ribs 4b, 4b for restricting the rotation of the U-shaped concave groove 1a are provided on both side surfaces of the U-shaped concave groove 1a.

As shown in FIG. 1, the guide rib 4a projecting from the bottom surface of the U-shaped groove 1a extends toward the frame from the axially intermediate position of the core 1 toward the central hole 2a of the disk-shaped collar portion 2. The joint 3a is inclined so as to gradually approach the tip end cylinder portion 3a2.

Further, the guide ribs 4b, 4b projecting from both side surfaces of the U-shaped groove 1a are, as shown in FIG. 2 and FIG.
Pairs are arranged so as to face each other in the left-right direction with the tip end tubular portion 3a2 of the frame side joint 3a and the base end tubular portion 3b1 of the bobbin side joint 3b inserted thereinto sandwiched therebetween, as shown in FIG. Opening side surfaces 3b7, 3b7 that are shorter than the outer width dimension D1 of the through hole portion 3b5 in the penetrating direction but are orthogonal to it
These opening side surfaces 3b are made slightly longer than the outer width dimension D2 of
7, 3b7 and the guide ribs 4b, 4b are non-rotatably engaged.

An operation handle C is fitted into a center hole 2b formed at the center of the other disc-shaped flange portion 2 and is non-rotatably attached. Further, in the case of this embodiment, the end of the core 1 on the side of the central hole 2b is engaged with the winding start portion H2 of the hose H from the inside of the U-shaped groove 1a toward the outer peripheral surface 1b of the core 1. By forming the matching hose guide passages 1c in an arcuate cross section, the hose winding start portion H2 is gently curved as a whole, a part of which is not bent, and the hose bobbin B is arranged at the end position. .

Next, a method of replacing or attaching the hose of the hose take-up reel will be described. First, the worker fits and connects the base end portion H1 of the hose H to be replaced or attached to the distal end cylinder portion 3b2 of the bobbin side joint 3b separated from the frame side joint 3a.

Hold this bobbin side joint 3b in hand and insert it into the U-shaped groove 1a of the core 1 as shown in FIGS. The work of inserting the proximal end cylindrical portion 3b1 of the bobbin side joint 3b from the extension position in the direction is performed.

At this time, the base end cylindrical portion 3b1 of the bobbin side joint 3b.
As shown in FIG. 3, the through hole portion 3b5 formed in the side wall is an oval side surface that is symmetrical in the through direction, and the distance between the guide ribs 4b and 4b projecting from both side surfaces of the U-shaped groove 1a is equal to the through hole portion. It is shorter than the outer width dimension D1 of 3b5 in the penetrating direction and slightly longer than the outer width dimension D2 of the opening side surfaces 3b7, 3b7 orthogonal thereto, so that the orientation of the through hole portion 3b5 is restricted.

That is, as shown in FIG. 3, when the opening surfaces 3b6, 3b6 of the through hole portion 3b5 are vertically arranged, the guide rib 4 is formed.
It can be inserted between b and 4b, and can be inserted by reversing 180 degrees in this state, but it cannot be inserted when the penetrating direction is tilted in any other direction.

Further, the tip end cylindrical portion 3a2 of the frame side joint 3a
When the base end cylindrical portion 3b1 of the bobbin side joint 3b is fitted into the guide rib 4a, the guide rib 4a is provided on the bottom surface of the U-shaped groove 1a.
Is guided upwards along with the guide ribs 4b and 4b, and the opening side surfaces 3b7 and 3b7 of the proximal end cylindrical portion 3b1 are smoothly guided to the distal end cylindrical portion 3a2 of the frame side joint 3a.
And the rotation of the bobbin side joint 3b is restricted, whereby the bobbin side joint 3b is accurately positioned. As a result, the hose fitting 3
Tip side cylinder part 3a2 of the frame side joint 3a and the bobbin side joint 3
The base end cylindrical portion 3b1 of b can be easily connected.

In this connected state, the locking means 3c is inserted into the through hole portion 3b5 formed in the base end cylindrical portion 3b1 of the bobbin side joint 3b, and the locking claw 3c1 at the tip thereof is connected to the frame side joint 3.
If the frame side joint 3a is fixed to the frame A by engaging with the annular recessed groove 3a4 provided around the distal end cylindrical portion 3a2 of a, both of them cannot move in the axial direction and cannot come off. .

Further, since the locking projection 3c2 protrudingly provided on the operating side of the locking means 3c does not project from the U-shaped groove 1a of the core 1, the entire bobbin side joint 3a is the outer periphery of the core 1. Does not protrude from the surface 1c. As a result, the hose H can be wound along the flat outer peripheral surface 1c of the core 1 while being connected in the U-shaped groove 1a.

In particular, since the U-shaped groove 1a of the core 1 is a narrow space sandwiched between the opposite side surfaces, the bobbin side joint 3b is misplaced by the operator during connection of the hose H.
If it is not connected properly, the bobbin side joint 3b and the locking means 3c are easily dropped, but even if they are dropped, the U-shaped groove 1a
Since it is supported by the bottom surface of the hose and does not fall downward from the hose bobbin B, it can be easily picked up and the hose connection work can be continued, resulting in excellent workability.

When the hose H is replaced, as shown in FIG. 4, the fingers are hooked on the locking projections 3c2 of the locking means 3c and pulled out, and the engagement between the frame side joint 3a and the bobbin side joint 3b is performed. The combination is released and it becomes separable. This has the advantage that the hose H can be easily replaced.

In the embodiment shown above, the cylindrical portions B1 and B2 are integrally formed by projecting the cylindrical portions B1 and B2 respectively at the left and right outer centers of the hose bobbin B, and these cylindrical portions B1 and B2 and the supporting cylindrical portion A1 provided in the frame A. , A2 are loosely fitted to each other to rotatably support the hose bobbin B, but the present invention is not limited to this, and the hose bobbin B may be rotatably supported by another structure. Further, the shape of the recessed groove 1a provided in the center core 1 is not limited to the substantially U-shaped cross section, and if the frame side joint 3a and the bobbin side joint 3b of the hose joint 3 can be detachably accommodated and deployed, the sectional shape is substantially U-shaped. It may have any shape such as a square shape.

[0031]

As described above, according to the first aspect of the present invention, the hose joint 3 is formed in the groove 1a of the core 1.
Since the bobbin side joint 3a is detachably housed in the bobbin side joint 3a, the bobbin side joint 3a does not protrude from the outer periphery of the core 1, so that the hose can be wound along the flat outer periphery while being connected in the concave groove. Therefore, compared with the conventional one in which the bobbin side joint of the hose joint is provided so as to project from the outer periphery of the core, the hose can be wound neatly and the core does not have a large diameter, so that the winding length of the hose is substantially reduced. The length can be made longer, and the manufacturing cost can be reduced because a water supply connecting pipe having a substantially L shape is not necessary. Furthermore, since the bobbin side joint does not protrude from the through hole unlike the conventional case, the hose is not broken or the hose is not bent. Further, since the concave groove 1a of the center core 1 is a narrow space sandwiched by the two opposite side surfaces thereof, the operator's hand went wrong during the work of connecting the hose H and failed to connect the bobbin side joint 3b. In this case, it is easy to drop the bobbin side joint 3b, but even if it is dropped, it will not be dropped below the hose bobbin B by being supported by the bottom of the groove 1a, so it can be easily picked up and the hose connection work can be continued. Excel.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, by fitting the bobbin side joint 3b along the guide means 4, the bobbin side joint 3b is guided toward the frame side joint 3a and accurately. Since it is positioned, the hose joint can be easily connected.

In addition to the effect of the invention of claim 1 or 2, the invention of claim 3 hooks a finger on the locking convex portion 3c2 to pull out the locking means 3c, whereby the frame side joint 3a.
Since the engagement between the bobbin side joint 3b and the bobbin side joint 3b becomes disengageable and separable, the hose can be easily replaced.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a hose take-up reel according to an embodiment of the present invention.

FIG. 2 is a partially enlarged plan view showing a part of a main part cut away.

FIG. 3 is a partially enlarged vertical side view taken along line (3)-(3) of FIG.

FIG. 4 is a partial exploded perspective view.

[Explanation of symbols]

A frame B hose bobbin H hose 1 center core 1a concave groove 2 disc-shaped collar 3 hose joint 3a frame side joint 3a2 tip cylinder 3b bobbin side joint 3b1 base cylinder 3c locking means 4 guide means

Claims (3)

[Claims] 1. A hose bobbin (B), which is composed of a core (1) having a cylindrical outer shape and disk-like flanges (2) projecting from both sides of the core (A), is rotatable with respect to the frame (A). The hose (H) that is supported by the hose and is wound around this hose bobbin (B).
In a hose take-up reel connected via a hose joint (3) provided on the core (1), a groove (() is formed on the core (1) so as to surround the center of the disk-shaped collar (2). 1a) is provided as a recess, and a bobbin side joint (3b) of a hose joint (3) to which a hose (H) is connected is detachably accommodated in the groove (1a). Take reel. 2. The hose joint (3) has a structure in which a frame side joint (3a) and a bobbin side joint (3b) are axially fitted and detachably connected to each other, and the frame side joint (3) The bobbin side fitting (3b) is fitted on the surface of the recessed groove (1a) facing the distal end tubular part (3a2) of 3a) and the base end tubular part (3b1) of the bobbin side fitting (3b) fitted therein. The hose take-up reel according to claim 1, further comprising a guide means (4) for regulating the position of the guide means while guiding it to the frame side joint (3a). 3. The hose joint (3) axially inserts the frame-side joint (3a) and the bobbin-side joint (3b) into each other so as to be detachably connected to each other, and the fitting is performed over both of them. The lock means (3c) is provided so as to be reciprocally movable in a direction intersecting with the insertion direction, and is engaged with the lock means (3c) at the time of insertion to hold the connected state of the both. The lock means (3c)
3. The hose take-up reel according to claim 1, wherein the operating side of the hose is extended in a range that does not project from the concave groove (1a) of the core (1), and the locking projection (3c2) is provided in a protruding manner.