JPH0679864U - Drainer mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The flange (2) of the body (1) and the tightening ring (3) fitted onto the body (1) clamp the peripheral edge of the mounting hole of the sink (S). Therefore, in a drainage mounting structure in which the main body (1) is mounted on the sink (S), the engagement holding force is increased while ensuring the operability of mounting. [Structure] A bending / stretching mechanism (4) for pressing the flange (2) and the tightening ring (3) in the facing and near direction is composed of a first link (42) and a second link (43) connected to the first link (42) , The end portion of the first link (42) is pivotally supported on one of the body (1) or the tightening ring (3), and the second link (on the other side of the body (1) or the tightening ring (3). The free end of 43) is detachable and rotatable, and when the free end is fitted, the bending and stretching mechanism (4)
A stopper (7) is provided on one side in the vicinity of the connecting fulcrum part (44) in a state where the connecting fulcrum part (44) in the middle is slightly beyond its dead point.

Description

[Detailed description of the device]

[0001]

[Usage field]

 The present invention is a mounting structure for mounting a drainage device such as a cylindrical drainage main body that houses a drainage trap on a sink such as a sink / wash basin, and in particular, at the periphery of the drainage device mounting hole of the sink, The present invention relates to a drainer mounting structure in which a flange provided on the outer periphery of an upper part is placed in contact with each other and then the drainer is fixed from the lower side of the sink.

[0002]

[Prior art and its problems]

 Conventionally, as a structure for attaching the drainage device to the sink, a method of screwing the drainage device with a nut was used, but since the diameter of this screwing part is large, the screwing torque is large and the work There was a problem with sex. Therefore, in order to improve the workability when installing the drainage device, a method using an engaging lever has been proposed as Kaikaihei 2-42974.

As shown in FIG. 1, this one has a cylindrical main body (1) of a drainage device inserted into a mounting hole of a sink (S), and a tightening ring (3) from below the main body (1). ) To the flange (2) at the upper end of the main body (1) by tilting down the engaging levers (40) (40) mounted on the tightening ring (3). The ring (3) is tightened in the direction of the opposing direction, and the body (1) is attached to the peripheral portion of the mounting hole of the sink (S).

An annular concave portion (11) having a C-shaped cross section is formed on the outer peripheral surface of the main body (1) below the flange (2). When the tightening ring (3) is in contact with the bottom surface of the sink (S), the annular recess (11) is located on the inner peripheral side of the tightening ring (3). Then, slits that open downward are formed at a plurality of locations on the tightening ring (3), and a pair of mutually parallel ribs (31) (31) are formed on the left and right of each slit so as to project. The engaging lever (40) as an engaging body having an engaging protrusion (41) press-fitted into the annular recess (11) between the ribs (31) (31) is directed upward and downward. It is pivotally supported.

As shown in FIG. 1, the engaging protrusion (41) is formed in a substantially triangular shape as a whole, and the engaging protrusion is formed by a shaft that passes through the upper portions of the ribs (31) and (31). The upper end of (41) is pivotally supported. The tip of the engaging projection (41) on the side of the annular recess (11) is formed in a substantially semicircular shape that conforms to the shape of the lower portion of the annular recess (11). Will be pressed into the lower part of the annular recess (11) as described later. Further, a lever portion is integrally formed on the opposite side of the engagement lever (40) from the shaft support portion. A packing (P) is interposed between the flange (2) and the sink (S).

In this, when the main body (1) is attached to the sink (S), if the lever portion of the engaging levers (40) (40) is tilted toward the main body (1) side, each engaging lever ( The tip of the engaging protrusion (41) of the (40) is fitted into the annular recess (11) by pushing down the curved surface of the lower part of the annular recess (11). As a result, the main body (1) is pressed downward and the tightening ring (3) is pressed upward, that is, the flange (2) and the tightening ring (3) are opposed to each other, and the flange (2) and the tightening ring (3) are tightened. The peripheral portion of the sink (S) and the packing (P) interposed between the ring (3) and the ring (3) are held under pressure.

However, when the lower end of the engagement protrusion (41) is pushed in in a substantially horizontal direction, the lower portion of the annular recess (11) has a curved surface that is inclined downward so as to be pushed downward. Therefore, the direction of the pressure applied from the annular recess (11) acting on the engaging protrusion (41) is inclined, and the horizontal component force thereof causes the engaging protrusion (41) to move to the main body (1). The engaging lever (40) is easily unlocked because the engaging lever (40) is unlocked.

[0008]

[Technical issues]

 The present invention has been made in view of the above-mentioned point, and describes a "flange (2) protruding from the upper end of the main body (1) inserted through the mounting hole at the bottom of the sink (S) and the main body (1). ) And the tightening ring (3) which is inserted from below, the packing (P) facing the mounting hole peripheral portion of the sink (S) and the upper surface of the sink (S) is interposed, and the main body ( 1) The fastening ring (3) is pressed between the flange (2) and the tightening ring (3) by a plurality of engaging bodies interposed between the flange (2) and the tightening ring (3). )), The problem is to increase the engagement holding force while ensuring the operability of the installation.

[0009]

[Technical means]

 The technical means of the present invention taken to solve the above technical problem is that "the above-mentioned respective engaging bodies are rotated by a fulcrum part (5) provided on one of the main body (1) and the tightening ring (3). A bending / stretching mechanism (4) comprising a first link (42) rotatably supported and a second link (43) rotatably connected to the first link (42), the main body (1) or the tightening ring (3). The other end of the second link (43) is provided with a seat portion (6) in which the free end of the second link (43) is detachable and rotatable, and the fulcrum portion (5) and this seat portion (6) Are made to face each other in the vertical direction, and the facing distance between the fulcrum portion (5) and the seat portion (6) is set to be slightly smaller than the maximum extension state of the bending and stretching mechanism (4). In a state where the free end of) is fitted into the seat portion (6), the connection fulcrum portion (44) of the first link (42) and the second link (43) slightly exceeds its dead point. On one side near the bending and stretching mechanism (4), (7) it is to be provided to. "

[0010]

[Action]

 The above technical means of the present invention operates as follows. With this, when the body (1) is attached to the sink (S), the body (1) is inserted into the drainage hole of the sink (S), and the flange (2) and the peripheral edge of the attachment hole are The packing (P) is placed between them. Then, the tightening ring (3) is externally inserted from below the main body (1), and the tightening ring (3) is brought into contact with the lower surface of the peripheral portion of the mounting hole of the sink (S). Then, the free ends of the second links (43) are fitted into the seat portions (6) in a state in which the respective parts of the bending and stretching mechanisms (4) are bent in the direction away from the stopper (7).

Then, when the connecting fulcrum portion (44) is pushed toward the stopper (7), the bending and stretching mechanism (4) approaches the maximum extension state, and the bending force of the bending and stretching mechanism (4) is applied. The fulcrum part (5) and the seat part (6) are pressed in the separating direction. As a result, the main body (1) having the fulcrum portion (5) or the seat portion (6) and the tightening ring (3) are pressed in the facing and adjacent direction, and further, the connecting fulcrum portion (44). After pushing in, the bending / stretching mechanism (4) stops at the maximum stretched state and then stops in contact with the stopper (7) with the connecting fulcrum (44) slightly exceeding the dead point. (4) is maintained in a slightly bent state.

Therefore, by maintaining the close-pressurized state between the main body (1) and the tightening ring (3), the peripheral edge of the mounting hole of the sink (S) and the packing (P) are attached to the flange (2 ) And the tightening ring (3) are maintained in a state of being pinched. As a result, the main body (1) is attached to the sink (S), and the connecting portion between the flange (2) and the sink (S) is sealed.

Further, in the locked state, when an external force acts such that the flange (2) separates from the sink (S), the distance between the fulcrum part (5) and the seat part (6) is reduced by the external force. As a result, the bending and stretching mechanism (4) tends to bend further than in the locked state, but only by increasing the pressing force of the bending and stretching mechanism (4) and the stopper (7), the bending and stretching mechanism above Since the bending of the mechanism (4) is blocked, the bending and stretching mechanism (4) is maintained in the locked state.

[0014]

【effect】

 The present invention having the above-mentioned configuration has the following unique effects. With this type, even if an external force in the direction in which the pressure contact force between the flange (2) and the sink (S) relaxes after the installation is completed, the direction of the force acting on the bending mechanism (4) by this external force is Since the bending / stretching mechanism (4) is maintained in the locked state, the locked state of the bending / stretching mechanism (4) is not released by the external force.

Further, in this structure, the free end of the second link (43) of the bending and stretching mechanism (4) is engaged with the seat portion (6) to lock each bending and stretching mechanism (4) in the locking direction (stopper (7 ) Direction), the workability at the time of this installation is good.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. [Example 1] In this example, as shown in FIGS. 2 and 3, the rotation direction of the link of each bending and stretching mechanism (4) is the radial direction of the main body (1). A fulcrum portion (5) that pivotally supports one end of the first link (42) of the bending and stretching mechanism (4) is provided on the lower end surface of the tightening ring (3), and the first link From the outer peripheral body of the main body (1), a seat portion (6) to which the free end of the second link (43) rotatably connected to the other end of (42) can be fitted is provided. It is a projecting piece.

The main body (1) is provided with a flange (2) that is formed on the outer peripheral side of the upper end of the main body (1), a large-diameter step portion (12) continuous therebelow, and a large-diameter step portion (12). The large-diameter step portion (12) is composed of a body portion (13) having a diameter smaller than that of the large-diameter step portion (12), and the tightening ring (3) described below is just fitted onto the large-diameter step portion (12) from below. While being mounted, seat portions (6) and (6) described later are provided on the outer peripheral surface of the body portion (13).

The tightening ring (3) is a tubular body having an upper flange (32) on the outer circumference of the upper end and a lower flange (33) on the inner circumference of the lower end. ) Of the upper flange (32) and the upper end surface of the upper flange (32) contacts the peripheral edge of the discharge hole, the lower flange (33) is aligned with the lower end surface of the large-diameter step (12). They are facing each other. And, from the lower end surface of the lower flange (33), a plurality of pairs of parallel substantially triangular bearing plates (51) (51) are arranged at predetermined intervals in the circumferential direction of the lower flange (33). A first link (42) described later is rotatably supported between the bearing plates (51) (51).

As shown in FIG. 2, the bending and stretching mechanism (4) includes a rod-shaped first link (42) and a second link (43) formed in a rectangular frame. The upper end of the second link (43) is an operation part (45) bent to the outer peripheral side of the main body (1), and the second link (43) is provided with the operation part (45) in the middle of the rectangular opening. The lower free end of the 1-link (42) is rotatably supported in a state where it is just inserted, and this rotatably supporting portion serves as a connecting fulcrum portion (44).

Therefore, the bending and stretching mechanism (4) can bend and stretch in the radial direction of the main body (1). Further, the lower free end edge of the second link (43) has an arcuate cross section, and this free end portion becomes a contact portion with a seat portion (6) described later. Each of the seat portions (6) is a block having a trapezoidal cross section, which is formed so as to project from the outer peripheral surface of the body portion (13) and has a horizontal top surface, and the second link ( An engagement groove (61) having a semicircular cross section with a radius larger than that of the arc of the tip edge of 43) is formed. As a result, the free end of the second link (43) can be rotated by a predetermined angle while being fitted in the engagement groove (61).

Further, the distance from the fulcrum portion (5) to the engaging groove (61) of the seat portion (6) is set slightly smaller than the length from the tip of the bending and stretching mechanism (4) in the maximum stretched state. Set the position of the fulcrum portion (5) and the distance of the engaging groove (61) from the outer peripheral surface of the body portion (13) to a predetermined value, and set the second link (43) to this position. When the connecting fulcrum portion (44) between the first link (42) and the second link (43) slightly exceeds its dead center in the state of being fitted in the engaging groove (61), The corners of the operation portion (45) of the two links (43) are in contact with the body portion (13). That is, in this one, the body portion (13) serves as the stopper (7) described above.

As shown in FIG. 3, the peripheral portion of the drainage mounting hole of the sink (S) is a stepped hole portion (S1) lower than the outer peripheral side thereof by this stepped hole portion (S1). ), The flange (2) of the main body (1) is just fitted with the annular packing (P) interposed, and the upper surface of the sink (S) on the outer peripheral side of the step hole (S1) and the flange It is designed to be on the same plane as that of (2).

Further, as shown in FIG. 2, the lower flange (33) of the tightening ring (3) is provided with a plurality of rectangular notches (34) that are open to the inner peripheral side at predetermined intervals in the circumferential direction. ) (34), and the size of each notch (34) is set larger than that of the seat portion (6). Therefore, when attaching the tightening ring (3) to the main body (1), the catches (6) and (6) are inserted into the notches (34) and (34), and the tightening ring (3) is inserted. 3) is fitted onto the main body (1), and then the tightening ring (3) is rotated by a predetermined angle so that the fulcrum part (5) and the seat part (6) face each other. To do.

Next, the actual application of the drainage mounting structure configured as described above will be described in detail below. In this case, when the body (1) is attached to the sink (S), the packing (P) is placed on the stepped hole (S1) of the sink (S) from above, and then the body (1) is attached. Fit the flange (2) into the step hole (S1). After that, the tightening ring (3) is externally fitted and attached from below the main body (1) as described above, and the tightening ring (3) is brought into contact with the lower surface of the step hole (S1). Let Then, in a state where each bending and stretching mechanism (4) is bent to the outer peripheral side of the main body (1) (state of the phantom line in Fig. 3), the free end of the second link (43) of the seat portion (6) is fixed. Fit it into the engaging groove (61).

Then, when the operating portion (45) is pushed toward the body portion (13) of the main body (1), the bending and stretching mechanism (4) is in the maximum extension state, and the connecting fulcrum portion (44) is dead. Immediately after crossing the point, the corner portion of the operating portion (45) of the second link (43) abuts the body portion (13) of the main body (1), and the bending mechanism (4) bends slightly. It is set to the locked state (state shown by the solid line in FIG. 3). In this state, since the distance between the fulcrum part (5) and the seat part (6) and the length of the bending and stretching mechanism (4) are set to a predetermined value, the flange (2) and the upper flange (32) are ) And pinch the step hole (S1) and packing (P). As a result, the main body (1) is attached to the sink (S) and the contact portions are sealed.

In this state, when an external force acts in a direction in which the pressure contact force between the flange (2) and the sink (S) relaxes, that is, in a direction in which the flange (2) separates from the step hole portion (S1), the fulcrum portion (5 ) And the seat portion (6) tend to contract, and the bending and stretching mechanisms (4) tend to bend further than in the locked state, but the corner portions of the operating portion (45) Since the bending of the bending / extending mechanism (4) is further prevented by the contact with the body (13), the bending / extending mechanism (4) is maintained in the locked state. In this way, the body portion (13) of this embodiment functions as the above-mentioned (7).

In the first embodiment, as shown in FIG. 2, the bearing plates (51) ( A second bearing plate (52) (52) similar to that of 51) is arranged, and the height of the shaft portion provided between the second bearing plates (52) and (52) is set to the bearing plate (51) (51). ) Different from that. Therefore, if the bending / extending mechanism (4) is attached to either the bearing plate (51) (51) or the second bearing plate (52) (52) according to the thickness of the sink (S), It is possible to cope with the sinks (S) having different wall thicknesses. [Embodiment 2] In Embodiment 2, as shown in FIGS. 4 and 5, a fulcrum portion (5) for rotatably supporting the first link (42) is attached to the body portion (1) of the main body (1). 13), the seat (6) of the second link (43) is provided on the lower surface of the tightening ring (3), and each bending and stretching mechanism (4) is tangential to the circumference of the body (1). It is capable of bending and stretching.

Therefore, the first link (42) and the second link (43) of the bending and stretching mechanism (4) are both rod-shaped, and the fulcrum portion (5) of the first link (42) is The axial direction coincides with the radial direction of the cross section of the main body (1), and the axis of the connecting fulcrum part (44) is parallel to the axis of the fulcrum part (5). Further, on the lower surface of the lower flange (33) of the tightening ring (3), an engaging groove (61) similar to that of the first embodiment is formed at a position facing each of the fulcrums (5). As the seat portion (6), the distance between the engagement groove (61) and the fulcrum portion (5) is set to be slightly smaller than the length of the bending and stretching mechanism (4) in the extended state as in the first embodiment. In the state where the second link (43) is fitted in the engaging groove (61), the position near the connecting fulcrum part (44) in a state where the connecting fulcrum part (44) slightly exceeds its dead center. Further, a plate-shaped stopper (7) formed so as to project from the body portion (13) is provided so as to be capable of contacting with the connecting fulcrum portion (44).

As in the first embodiment, the bending and stretching mechanism (4) and the stopper (7) can be inserted into the notches (34) and (34) formed in the lower flange (33). . Further, the other configurations are the same as those in the first embodiment. Next, the actual application of the drainage mounting structure having the above configuration will be described in detail below. In this case, in the same manner as in Example 1, the main body (1) is inserted into the attachment hole of the sink (S), and the tightening ring (3) is externally fitted and attached from below the main body (1). The engagement groove (61) provided on the lower surface of the tightening ring (3) and the fulcrum portion (5) of the bending and stretching mechanism (4) are vertically opposed to each other.

Then, in a state where each bending and stretching mechanism (4) is bent in a direction away from the stopper (7) (state of a solid line in FIG. 4), the free end of the second link (43) is engaged with the engaging groove (61 ), And push the connecting fulcrum part (44) toward the stopper (7), the bending and stretching mechanism (4) reaches the maximum extension state, and then the connecting fulcrum part (44) crosses the dead point. Immediately after contacting the stopper (7), the bending and stretching mechanism (4) is set to a slightly bent locked state (state of phantom line in Fig. 4), and the main body (1) is attached to the sink (S). To be done.

In this state, even if an external force acts in the direction in which the flange (2) separates from the stepped hole portion (S1), the connection fulcrum portion (44) and the stopper (7) are moved as in the first embodiment. The bending and stretching mechanisms (4) are kept in a locked state by the contact. In the second embodiment, the first link (42) and the second link (43) may be freely fitted at their connecting fulcrums (44) as shown in FIG.

In FIG. 6, the connecting fulcrum portion (44) of the second link (43) is provided between a pair of discs (46) (46) parallel to the tangential direction of the main body (1). And a connecting fulcrum portion (44) of the first link (42) whose inner peripheral surface has the same diameter as that of the shaft (47) and whose outer peripheral surface is the same as that of the shaft (47). A C-shaped portion (48) having the same diameter as that of the discs (46) (46) is formed, and an opening interval of the tip thereof is set to be slightly smaller than the diameter of the shaft (47).

In this structure, the first link (42) and the second link (43) are connected when the open end of the C-shaped portion (48) is pushed into the shaft (47) while being aligned with the shaft (47). Therefore, if this type of bending mechanism (4) is adopted, it is possible to adapt to the wall thickness of the sink (S) and set the length of the second link (43) to a predetermined value to obtain a different wall thickness. It is possible to correspond to the thick sink (S).

Further, in the second embodiment, the connecting fulcrum portion (44) can be brought into contact with the stopper (7). However, like the first embodiment, this can be the first link (42) or the second link. Either end of the connection side of (43) may be in contact with the stopper (7). Further, in the present invention, the fulcrum portion (5) may be formed on either the tightening ring (3) or the main body (1). Further, as a method for adjusting the distance between the tightening ring (3) and the flange (2) in two steps, two seats (6) (6) having different positions are provided. May be.

[Brief description of drawings]

FIG. 1 is a sectional view of a partial cutaway of a conventional drainer.

FIG. 2 is an assembled perspective view of the drainage device according to the first embodiment.

FIG. 3 is a cross-sectional view of a main part of the first embodiment.

FIG. 4 is a front view of the second embodiment.

FIG. 5 is a cross-sectional view of a main part of the second embodiment.

FIG. 6 is a first link (42) and a second link (43) of the second embodiment.
Perspective view of

[Explanation of symbols]

 (S) ・ ・ ・ Sink (1) ・ ・ ・ Main body (2) ・ ・ ・ Flange (P) ・ ・ ・ Packing (3) ・ ・ ・ Locking ring (5) ・ ・ ・ Support point (4) ・ ・・ Bending / extending mechanism (42) ・ ・ ・ First link (43) ・ ・ ・ Second link (6) ・ ・ ・ Reception part (44) ・ ・ ・ Connecting fulcrum part (7) ・ ・ ・ Stopper

Claims (1)

[Scope of utility model registration request] 1. A flange (2) protruding from the upper end of a body (1) inserted through a mounting hole at the bottom of the sink (S), and this body.
Between the lower part of (1) and the tightening ring (3),
A plurality of engaging bodies interposed between the main body (1) and the tightening ring (3) with the packing (P) in contact with the peripheral portion of the mounting hole of the sink (S) and the upper surface thereof. Due to flange
(2) and the tightening ring (3) are opposed to each other in a close direction to secure airtightness between the peripheral edge of the mounting hole and the flange (2). Body (1)
Alternatively, it comprises a first link (42) pivotally supported by a fulcrum portion (5) provided on one side of the tightening ring (3) and a second link (43) pivotally connected thereto. The bending / stretching mechanism (4) is a seat portion (6) on which the free end of the second link (43) is detachable and rotatable on the other side of the main body (1) or the tightening ring (3). The fulcrum (5) and the seat
(6) and (6) face each other in the vertical direction, and the fulcrum part (5) and the seat part
In the state in which the free space of the second link (43) is fitted into the seat part (6), the facing distance to (6) is set slightly smaller than the length of the bending mechanism (4) in the maximum extension state. , The first link (42) and the second link (43) connecting fulcrum portion (44) slightly beyond its dead center, on one side in the vicinity of the bending and stretching mechanism (4),
Drainer mounting structure with stopper (7).