JP6780052B2 - Fitting aids and fittings - Google Patents

Description

The present invention relates to an auxiliary tool for a joint and a joint.

As a so-called cam lock type joint, in addition to a male joint and a female joint to be connected to the male joint, there are those provided with a cam arm. In this joint, the cam arm is undulating and can be erected from the female joint and tilted along the female joint. In this joint, the male joint cannot be removed from the female joint when the cam arm is tilted (the connection cannot be released), while the male joint can be removed from the female joint when the cam arm is raised (the joint). Can be canceled). Therefore, it is necessary to prevent the cam arm from standing up unintentionally, and thus prevent the male joint from being unintentionally detached from the female joint (natural release). Therefore, for example, Patent Documents 1 and 2 prevent spontaneous release by changing the structure of the joint. However, the structural change is complicated, and the existing joint cannot be used as it is. On the other hand, Patent Document 3 prevents the cam arm from standing up unintentionally by the flexible fixing band. However, according to this proposal, the fixing band can be lost. Further, the document only proposes a flexible member that holds down the cam arm, and in this proposal, attachment of a fixing band is complicated. If the holding of the fixing band is weakened, the fixing band may come off from the joint.

Japanese Unexamined Patent Publication No. 2004-183844 JP-A-2015-68467 Japanese Unexamined Patent Publication No. 2003-4190

A main problem to be solved by the present invention is to provide a simple auxiliary tool and a joint capable of preventing spontaneous release of the joint.

The means for solving the above problems are as follows.
(Means according to claim 1)
It is an auxiliary tool for a joint that has a male joint, a female joint that connects to the male joint, and a cam arm that is freely provided on the female joint so that the connection can be released when the cam arm is upright.
It has a rotating member pivotally supported by the male joint or the female joint, and a gripping member attached to the rotating member.
The rotating member is provided with a pair of insertion holes, and both ends of the gripping member are movably inserted into the pair of insertion holes toward the tip end side and the base end side.
The movement of both ends to the tip side makes the cam arm unable to stand, and the rotating member becomes impossible to rotate.
Wherein the mobile to the base end side of both ends cam arm allows standing and Ri said rotating member is capable Na rotate,
The gripping member is divided into both ends and a central portion located between the two ends, and the both ends are formed by bending from the central portion.
The rotating member has a flat plate shape, and the central portion is separated from the rotating member by moving both end portions toward the base end side.
Auxiliary tool for fittings.

(Means according to claim 2 )
It has a male joint, a female joint to be connected to the male joint, an auxiliary tool provided on the male joint or the female joint, and a cam arm that is freely provided on the female joint, and the connection can be released when the cam arm is upright. become,
The auxiliary tool has a rotating member pivotally supported by the male joint or the female joint, and a gripping member attached to the rotating member.
The rotating member is provided with a pair of insertion holes, and both ends of the gripping member are movably inserted into the pair of insertion holes toward the tip end side and the base end side.
The movement of both ends to the tip side makes the cam arm unable to stand, and the rotating member becomes impossible to rotate.
Wherein the mobile to the base end side of both ends cam arm allows standing and Ri said rotating member is capable Na rotate,
The gripping member is divided into both ends and a central portion located between the two ends, and the both ends are formed by bending from the central portion.
The rotating member has a flat plate shape, and the central portion is separated from the rotating member by moving both end portions toward the base end side.
A joint characterized by that.

(Means according to claim 3 )
An on-off valve is provided inside the male joint.
The rotating member is pivotally supported by the male joint, and the rotation of the rotating member and the opening / closing of the opening / closing valve are interlocked with each other.
The joint according to claim 2 .

According to the present invention, it is a simple auxiliary tool and a joint that can prevent the joint from being spontaneously released.

It is a perspective view of the joint of this embodiment (locked state). It is a top view of the joint of this embodiment (locked state). It is a side view of the joint of this embodiment (locked state). It is a front view of the joint of this embodiment (locked state). It is a perspective view of the joint of this embodiment (unlockable state). It is a top view of the joint of this embodiment (unlockable state). It is a side view of the joint of this form (unlockable state). It is a front view of the joint of this form (unlockable state).

Next, a mode for carrying out the invention will be described. The embodiment of the present invention is an example of the present invention. The scope of the present invention is not limited to the scope of the present embodiment.

FIGS. 1 to 8 show the joint 1 of this embodiment. The joint 1 of the present embodiment is provided with or provided with an auxiliary tool 10 (illustrated example). The joint 1 has a male joint 2, a female joint 3, and a pair of cam arms 4. The joint 1 provided with the cam arm 4 is sometimes referred to as, for example, a lever-type cam lock or the like. Further, the cam arm 4 is sometimes referred to as a lever or the like.

The male joint 2 and the female joint 3 of the present embodiment are both cylindrical. Further, one end of the male joint 2 (the end on the female joint 3 side) can be inserted into one end of the female joint 3 (the end on the male joint 2 side). The illustrated example shows the state in which the insertion has been performed. In this inserted state, a fluid such as a liquid or a gas can flow through the inner space of the male joint 2 and the female joint 3. The inner space of the male joint 2 and the female joint 3 has a diameter of, for example, 10 to 50 mm.

The pair of cam arms 4 are fixed to the peripheral surface of the female joint 3. The pair of cam arms 4 are provided on opposite sides of the female joint 3, that is, at symmetrical positions. A pair of bases 3A are provided on the peripheral surface of the female joint 3. The base portion 3A protrudes from the peripheral surface of the female joint 3. The pair of cam arms 4 are pivotally supported by a shaft member 4A with respect to the base portion 3A. The shaft member 4A may be referred to as, for example, a pivot pin or the like. The shaft member 4A extends in a direction orthogonal to the extending direction of the female joint 3. Due to the shaft support provided by the shaft member 4A, the cam arm 4 is rotatable between a state (tilted state) and an upright state along the extending direction of the female joint 3. When the cam arm 4 is tilted down, the connection between the male joint 2 and the female joint 3 is locked (cannot be released). On the other hand, when the cam arm 4 is upright, the coupling lock of the male joint 2 and the female joint 3 is released (can be released).

The auxiliary tool 10 provided in the joint 1 as described above mainly includes a rotating member 11 and a gripping member 12. The auxiliary tool 10 (rotating member 11) is pivotally supported by the male joint 2 or the female joint 3. In the illustrated example, the rotating member 11 is pivotally supported by the male joint 2.

The rotating member 11 of this embodiment has a flat plate shape. Further, the rotating member 11 of this embodiment can be divided into a main body portion 11a and a shaft support portion 11b. The main body portion 11a can have an appropriate shape such as a circular shape, a rectangular shape, or an arbitrary shape in a plan view. In the illustrated example, it has a substantially perfect circular shape. On the other hand, the shaft support portion 11b can also have an appropriate shape such as a circular shape, a rectangular shape, or an arbitrary shape in a plan view. The shaft support portion 11b of the present embodiment protrudes from the main body portion 11a toward the male joint 2. However, the rotating member 11 does not have to be divided into a main body portion 11a and a shaft support portion 11b. For example, the shaft support portion 11b may not be provided, and the main body portion 11a itself may be pivotally supported by the male joint 2 or the like.

The shaft support portion 11b is pivotally supported by the male joint 2 by the shaft member 11x. The shaft member 11x extends in a direction orthogonal to the extending direction of the male joint 2 and the female joint 3, and extends in the same direction as the shaft member 4A of the cam arm 4. Therefore, the rotation direction of the rotating member 11 is the same as the rotation direction of the cam arm 4. Of course, the rotation center position of the rotating member 11 and the rotation center position of the cam arm 4 are different.

The main body 11a of the rotating member 11 is provided with a pair of insertion holes 11c. A gripping member 12 is inserted through the pair of insertion holes 11c.
More specifically, first, the gripping member 12 has a rod shape and is divided into a central portion 12A located between both end portions 12A and both end portions 12A. Both end portions 12A are formed by bending from the central portion 12B.

Both end portions 12A of the gripping member 12 are inserted into the insertion holes 11c of the rotating member 11 (main body portion 11a). This insertion is performed so that both end portions 12A can be moved to the tip end side and the base end side. The base end side means the bent portion side of the gripping member 12. Therefore, the movement to the tip side means a state in which both end portions 12A are inserted long by the insertion hole 11c, that is, a state in which the insertion length is long. On the other hand, the movement toward the proximal end side means a state in which both end portions 12A are shortly inserted through the insertion holes 11c, that is, a state in which the insertion length is shortened. Note that FIGS. 1 to 8 show a state in which both end portions 12A have moved toward the tip end side.

In a state where both end portions 12A of the gripping member 12 are moved toward the tip end side, as shown in FIG. 4, the both end portions 12A are on the outer side of the pair of cam arms 4, that is, on the side opposite to the female joint 3 with the cam arm 4 interposed therebetween. Located in. Therefore, the cam arm 4 cannot stand (non-rotatable), and the rotating member 11 cannot rotate. As a result, the connection between the male joint 2 and the female joint 3 is locked, and the male joint 2 is prevented from being unintentionally disengaged from the female joint 3.

On the other hand, in a state where both end portions 12A of the gripping member 12 have moved to the base end side, although not particularly shown, both end portions 12A are opposite to the female joint 3 with the cam arm 4 on the outside of the pair of cam arms 4. It will not be located on the side. Therefore, the cam arm 4 can stand up (rotatably), and the rotating member 11 can rotate. As a result, by erecting the cam arm 4, the coupling lock between the male joint 2 and the female joint 3 is released, and the male joint 2 can be removed from the female joint 3. Further, since the rotating member 11 becomes rotatable, as shown in FIGS. 5 to 8, the male joint 2 is formed by rotating the rotating member 11 in a direction orthogonal to the male joint 2 and the female joint 3. It is possible to visually recognize whether or not it is in a state where it can be removed from the female joint 3 (of course, it is necessary to erect the cam arm 4 as a premise). Then, at this time, if both end portions 12A of the gripping member 12 are moved (returned) to the tip side, the rotating member 11 is in the original position (a state along the male joint 2 and the female joint 3). There is no risk of returning to the state of 4)), and there is no risk of misidentifying whether or not the male joint 2 is in a state where it can be removed from the female joint 3.

Further, in the present embodiment, since the rotating member 11 has a flat plate shape, when both end portions 12A of the gripping member 12 move to the base end side, the central portion 12B of the gripping member 12 is moved to the rotating member 11 (main body portion). It deviates from 11a). Therefore, the central portion 12B of the gripping member 12 functions as a gripping portion for rotating the rotating member 11.

In the above, the form in which the number of insertion holes 11c is two and the number of gripping members 12 is provided is shown, but the number of insertion holes 11c and the number of gripping members 12 can be appropriately changed.

(Other forms)
The joint 1 of this embodiment may be provided with an on-off valve (not shown) in the inner space of the male joint 2. In this embodiment, it is preferable that the rotating member 11 is pivotally supported by the male joint 2 and that the rotation of the rotating member 11 and the opening / closing of the opening / closing valve are interlocked with each other. That is, in the state where the rotating member 11 is along the male joint 2 and the female joint 3 (states 1 to 4), the open / close valve is opened, and the rotating member 11 is orthogonal to the male joint 2 and the female joint 3. It is preferable to configure the on-off valve to close in the state (states 5 to 8). According to this form, when the rotating member 11 is along the male joint 2 and the female joint 3, the open / close valve is open and the fluid flows in the male joint 2 and the female joint 3, but the cam arm 4 stands up. Therefore, there is no possibility that the male joint 2 will come off from the female joint 3. On the other hand, when the rotating member 11 is orthogonal to the male joint 2 and the female joint 3, the open / close valve is closed, so that the fluid flowing from the male joint 2 side is connected to the male joint 2 and the female joint 3. There is no risk of leaking from the part. Therefore, there is no problem even if the cam arm 4 can stand upright and the male joint 2 may come off from the female joint 3, or even if the male joint 2 is removed from the female joint 3. Further, in this embodiment, the open / closed state of the open / close valve can be confirmed by visually recognizing the state of the rotating member 11.

The present invention can be used as an auxiliary tool for a joint and a joint.

1 Fittings 2 Male Fittings 3 Female Fittings 3A Base 4 Cam Arm 4A Shaft Material 10 Auxiliary Tool 11 Rotating Member 11a Main Body 11b Shaft Support 11c Insertion Hole 11x Shaft Material 12 Grip Member 12A Both Ends 12B Central Part

Claims (3)

It is an auxiliary tool for a joint that has a male joint, a female joint that connects to the male joint, and a cam arm that is freely provided on the female joint so that the connection can be released when the cam arm is upright.
It has a rotating member pivotally supported by the male joint or the female joint, and a gripping member attached to the rotating member.
The rotating member is provided with a pair of insertion holes, and both ends of the gripping member are movably inserted into the pair of insertion holes toward the tip end side and the base end side.
The movement of both ends to the tip side makes the cam arm unable to stand, and the rotating member becomes impossible to rotate.
Wherein the mobile to the base end side of both ends cam arm allows standing and Ri said rotating member is capable Na rotate,
The gripping member is divided into both ends and a central portion located between the two ends, and the both ends are formed by bending from the central portion.
The rotating member has a flat plate shape, and the central portion is separated from the rotating member by moving both end portions toward the base end side.
Auxiliary tool for fittings. It has a male joint, a female joint to be connected to the male joint, an auxiliary tool provided on the male joint or the female joint, and a cam arm freely provided on the female joint, and the connection can be released when the cam arm is upright. become,
The auxiliary tool has a rotating member pivotally supported by the male joint or the female joint, and a gripping member attached to the rotating member.
The rotating member is provided with a pair of insertion holes, and both ends of the gripping member are movably inserted into the pair of insertion holes toward the tip end side and the base end side.
The movement of both ends to the tip side makes the cam arm unable to stand, and the rotating member becomes impossible to rotate.
Wherein the mobile to the base end side of both ends cam arm allows standing and Ri said rotating member is capable Na rotate,
The gripping member is divided into both ends and a central portion located between the two ends, and the both ends are formed by bending from the central portion.
The rotating member has a flat plate shape, and the central portion is separated from the rotating member by moving both end portions toward the base end side.
A joint characterized by that. An on-off valve is provided inside the male joint.
The rotating member is pivotally supported by the male joint, and the rotation of the rotating member and the opening / closing of the opening / closing valve are interlocked with each other.
The joint according to claim 2 .