JP2013024410A - Wire with stopper, driving device, and valve body driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire with a stopper which provides an excellent fixing strength of the stopper.SOLUTION: The wire 1 with a stopper includes a wire 10 containing a plurality of thin wires 11 and a stopper 20 preventing coming off of a connection member connected to the wire 10 from the wire 10 with a solder material 30 interposed between the stopper 20 and the plurality of thin wires 11 constituting the wire 10. The wire 10 is preferably made by twisting the plurality of thin wires 11 together. Further, the stopper 20 is caulked with the wire 10, and the solder material 30 is preferably interposed between the caulked stopper 20 and the wire 10.

Description

  The present invention relates to a wire to which a stopper to be hooked on an object to be driven is fixed, a driving device including the wire, and a valve body driving device.

  Patent Document 1 describes a wire wound up by a pulley that is rotated by a driving force of a motor. A stopper for hooking the end of the wire on a pulley or an object to be driven (connecting member) is fixed. In Patent Document 1, the stopper is fixed to the wire by crimping a sleeve-shaped member. However, in order to cope with an increase in load applied to the stopper, further improvement in fixing strength is required.

JP 2002-372109 A

  In view of the above problems, the problem to be solved by the present invention is to provide a wire with a stopper that exhibits excellent fixing strength of the stopper. Moreover, it is providing the drive device and valve body drive device which were equipped with such a wire with a stopper.

  In order to solve the above-mentioned problems, a wire with a stopper according to the present invention includes a wire made of a plurality of fine wires and a stopper for preventing a connecting member connected to the wire from coming off from the wire. The gist is that a brazing material is interposed between the plurality of thin wires constituting the stopper and the stopper.

  According to the above configuration, since the brazing material for joining the wire and the stopper enters between the plurality of fine wires constituting the wire, the resistance force (frictional force) to the force in the direction in which the stopper tries to come out of the wire. Etc.) increases. That is, it becomes a wire with a stopper that exhibits excellent fixing strength of the stopper. Moreover, the thickness of the stopper portion is increased by the brazing material that has entered between the wire and the thin wire, and the strength is improved.

  In this case, the wire may be formed by twisting a plurality of fine wires.

  According to the said structure, between several thin wires which comprise a wire (valley) is formed in the direction inclined with respect to the axis line (direction of the force applied to the wire in a stopper). Accordingly, since the brazing material existing between the valleys formed in the inclined direction is caught by the wire, the resistance force to the force in the direction in which the stopper is about to come out of the wire is further increased.

  The stopper may be caulked to the wire, and the brazing material may be interposed between the caulked stopper and the wire.

  According to the said structure, since the clearance gap between the wire and stopper in the crimped part becomes small, a brazing material tends to enter. In addition, since the portion into which the wire enters the stopper in the state before caulking can be enlarged, the operation of inserting the stopper into a predetermined position of the wire is facilitated.

  The brazing material may be brazed by immersing the stopper caulked by the wire in the molten brazing.

  According to the above configuration, since the outer peripheral surface of the stopper is also covered with the brazing material, the stopper is hardly corroded. Moreover, since the operation | work immersed in the melt | dissolving wax can be performed in the state (state temporarily fixed) which the stopper was crimped to the wire, it is excellent in the workability | operativity of the said operation | work.

  The wettability of the brazing material on the surface of the wire may be lower than the wettability of the brazing material on the surface of the stopper.

  Thus, if the wettability of the surface (oxide film) of a wire is low, it can suppress that a brazing material spreads in the length direction of a wire along between several thin wires which comprise a wire. Therefore, it is possible to suppress the proximal end portion of the wire from being hardened by the brazing material with respect to the portion where the stopper is fixed, and to maintain good flexibility of the wire. In addition, when brazing is performed by immersing the stopper in the molten brazing material, the brazing material is prevented from spreading in the length direction of the wire through the thin wires, so that the operator can It is difficult for the heat of the brazing material to be transmitted to the portion holding the wire, and burns during the brazing operation are prevented.

  The stopper may be cylindrical.

  Thus, if the stopper is cylindrical, the area where the wire and the stopper face each other increases, and the fixing strength of the stopper is further improved.

  Moreover, the said stopper should just be formed in the cylinder shape by rounding the plate-shaped body.

  As described above, since the wire and the stopper are brazed, even if the stopper is formed by rounding the plate-like body (for example, compared with the case where the stopper is constituted by a continuous cylindrical body), the strength is significantly reduced. There is no risk of such problems. Therefore, by using such a rounded plate-like body as a stopper, the stopper can be constructed at low cost.

  Further, the driving device according to the present invention is provided with a wire with a stopper in which the wettability of the brazing material on the surface of the wire is lower than the wettability of the brazing material on the surface of the stopper, and the base provided on the base end side of the wire with the stopper And a pulley as the connecting member that engages with a stopper and winds the wire by rotating with a driving source.

  In the above drive device, the flexibility of the wire is maintained (because the wire does not become hard due to the brazing material that has entered between the thin wires), and therefore the load applied to the pulley around which the wire is wound and the drive source that rotates the wire is increased. Can be suppressed.

  Further, the valve body drive device according to the present invention, the valve device as the connection member that opens and closes the flow path, engaged with the drive device, the stopper provided on the distal end side of the wire with stopper. The wire is formed of stainless steel, and the valve body opens the water channel when the wire is wound around the pulley.

  According to the said valve body drive device, it can prevent that a wire corrodes with water.

  In this case, the valve body may be anything that opens and closes the drainage channel of the washing machine.

  When the washing machine is performing the dehydration operation, the valve body must open the drain passage. In addition, vibration is generated during such dehydration operation. As described above, since the valve body biased in the closing direction must be kept open in an environment in which vibration is generated, the load applied to the stopper fixed to the wire increases. There is no problem due to the high fixing strength of the stopper.

According to the wire with a stopper, the drive device, and the valve body drive device according to the present invention,
Since the brazing material for joining the wire and the stopper enters between the plurality of fine wires constituting the wire, the fixing strength of the stopper to the wire is high.

FIG. 1A shows the state before brazing of the wire with stopper according to the embodiment of the present invention, and FIG. 1B shows the wire with stopper according to the embodiment of the present invention. FIG. 1C shows a modification of the wire with stopper according to the embodiment of the present invention. It is sectional drawing (AA sectional view taken on the line AA of FIG.1 (b)) of the stopper part of the wire with a stopper concerning embodiment of this invention. It is a figure for demonstrating the 1st assembly procedure of the wire with a stopper. It is a figure for demonstrating the 2nd assembly procedure of the wire with a stopper. It is an external view of the drive device (valve body drive device) concerning the embodiment of the present invention. It is the figure which showed the valve body (driven body) connected to the pulley via the pulley with which the drive device (valve body drive device) concerning embodiment of this invention is equipped, and a wire with a stopper.

  Hereinafter, embodiments of the present invention will be described in detail. The wire with stopper 1 according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a wire 10 and a stopper 20. The wire 10 is formed by twisting a plurality of fine wires 11 made of metal. The stopper 20 is a cylindrical member fixed to the end of the wire 10. Specifically, it is a member formed in a cylindrical shape by bending so as to abut both ends of a metal plate material (plate-like body P; see FIG. 4). Therefore, there is a minute gap (cut) between the two ends that are abutted.

  The stopper 20 is caulked to the wire 10. In the present embodiment, the stopper 20 is caulked to the wire 10 by crushing the approximate center of both end portions that are abutted. A brazing filler metal 30 is interposed between the stopper 20 and the wire 10 that are caulked in this manner (enter between the two). The brazing filler metal 30 enters a relatively small gap between the crushed portion 21 of the stopper 20 and the wire 10 and other relatively large gaps.

  The brazing material 30 also enters between the plurality of thin wires 11 constituting the wire 10 (valley 12). As described above, since the wire 10 is formed by twisting a plurality of thin wires 11, the valley 12 is inclined with respect to the axial direction of the wire 10. The brazing material 30 is in a state of entering the inclined valley 12. Examples of the brazing material 30 to be used include brass, silver, aluminum, and solder, and solder having a low melting temperature is preferable. The base material (the wire 10 and the stopper 20) to be joined by the brazing material 30 must be formed of a material having a melting temperature higher than that of the brazing material 30. If a solder having a low melting temperature is selected, the material is selected. This is because the room is widened. Further, as will be described later, this is because the work becomes safe when performing the brazing operation of immersing the wire 10 in the molten wax.

  Here, the wire 10 is set to a material such that the wettability of the brazing material 30 on its surface (oxide film) is lower than the wettability of the brazing material 30 on the surface of the stopper 20 (oxide film). In other words, the oxide film on the surface of the wire 10 is less likely to be removed during brazing than the oxide film on the surface of the stopper 20. When the surface of the wire 10 or the stopper 20 is not subjected to a surface treatment such as plating, an oxide film of a metal material constituting the wire 10 or the stopper 20 is formed on the surface. When surface treatment such as plating is performed, an oxide film of the surface treatment material is formed on the surface. For example, when solder is selected as the brazing material 30, the wire 10 (thin wire 11) uses stainless steel composed mainly of an oxide film mainly composed of hydrated oxyoxide of chromium, and the oxide film is formed on the surface of the stopper 20. It is only necessary to apply tin plating in which no is formed.

  As an example of the assembly procedure (first assembly procedure) of the stopper-equipped wire 1 having such a configuration, an assembly procedure as shown in FIG. 3 can be considered. First, a plate-like body serving as the stopper 20 is bent into a cylindrical shape. The wire 10 is inserted into the cylindrical stopper 20. With the wire 10 inserted, a part of the cylindrical stopper 20 (center of the gap) is crushed. As a result, the stopper 20 is crimped to the wire 10 (the stopper 20 is temporarily fixed to the wire 10). Thereafter, the stopper 20 crimped to the wire 10 is immersed in the molten wax. The brazing material 30 enters and is fixed between the wire 10 and the stopper 20. Specifically, the stopper 20 enters and adheres to a relatively small gap in the portion where the stopper 20 is caulked and other relatively large gaps. Thereby, the wire 10 and the stopper 20 are joined. Further, the outer peripheral surface of the stopper 20 is also covered with the brazing material 30.

  Further, as a different assembling procedure (second assembling procedure), a procedure as shown in FIG. 4 can be considered. First, the wire 10 is placed on a plate-like body that becomes the stopper 20. In this state, the plate-like body is crimped to the wire 10 while being bent so that both ends thereof are close to each other. For example, the plate-shaped body is sandwiched between the lower mold and the upper mold in which U-shaped depressions are formed, and the plate 10 is crimped to the wire 10 while being bent. As a result, the plate-like body becomes a cylindrical shape that encloses the wire 10, and at the same time, it is caulked to the wire 10. Thereafter, like the first assembly procedure, the stopper 20 crimped to the wire 10 is immersed in the molten wax. As a result, the brazing material 30 enters and adheres between the wire 10 and the stopper 20, and the wire 10 and the stopper 20 are joined. Further, the outer peripheral surface of the stopper 20 is also covered with the brazing material 30. By adopting such a procedure, the stopper 20 is deformed into a shape that matches the thickness of the wire 10, so that the gap between the wire 10 and the stopper 20 can be further reduced. Moreover, the operation | work which lets the wire 10 pass to the stopper 20 becomes unnecessary. Furthermore, even if the tip of the wire 10 is frayed, the operation of wrapping the frayed wire 10 with the stopper 20 (plate-like body) is simple.

  It has been described that the brazing material 30 is attached by immersing the stopper 20 caulked on the wire 10 in a molten braze while the stopper 20 is caulked on the wire 10. The brazing material 30 may be injected between the two. Then, as shown in FIG. 1C, a wire 1 with a stopper (wire 1a with a stopper according to a modification) in which the brazing material 30 exists only between the wire 10 and the stopper 20 is obtained.

  According to the wire 1 with a stopper according to the present embodiment described above, the following operational effects are exhibited.

  In the wire with stopper 1 according to the present embodiment, the brazing material 30 that joins the wire 10 and the stopper 20 enters between the plurality of thin wires 11 constituting the wire 10. Resistance (frictional force, etc.) to the force in the direction to be increased increases. That is, the stopper-equipped wire 1 that exhibits excellent fixing strength of the stopper 20 is obtained. Further, the brazing material 30 entering between the wire 10 and the thin wire 11 increases the thickness of the stopper 20 portion, thereby improving the strength.

  Further, since the wire 10 is formed by twisting a plurality of thin wires 11, the space between the plurality of thin wires 11 constituting the wire 10 (valley 12) is formed in a direction inclined with respect to the axis of the wire 10. Is done. Therefore, since the brazing material 30 existing between the valleys 12 formed in the inclined direction is caught by the wire 10, the resistance force to the force in the direction in which the stopper 20 tries to come out of the wire 10 is further increased. Become.

  Further, the stopper 20 is caulked to the wire 10, and the gap between the wire 10 and the stopper 20 at the caulked portion becomes small, so that the brazing material 30 is likely to enter. Further, when the first assembly procedure in which the wire 10 is inserted after the stopper 20 is formed in a cylindrical shape is adopted, a portion (space inside the cylinder) where the wire 10 enters in the stopper 20 in a state before caulking. Since it can be enlarged, the operation | work which inserts the stopper 20 in the predetermined position of the wire 10 becomes easy.

  Further, when the brazing of the brazing material 30 is performed by immersing the stopper 20 crimped to the wire 10 in the molten brazing, the outer peripheral surface of the stopper 20 is also covered with the brazing material 30, and the stopper 20 is Hard to corrode. In addition, since the stopper 20 is caulked to the wire 10 (temporarily fixed state) before brazing, the workability of the brazing operation is excellent (the stopper 20 falls into the molten wax). Is prevented).

  Further, since the wettability of the brazing material 30 on the surface of the wire 10 is lower than the wettability of the brazing material 30 on the surface of the stopper 20, the brazing material 30 is transmitted between the plurality of thin wires 11 constituting the wire 10. Spreading in the length direction of the wire 10 can be suppressed. Therefore, the brazing material 30 prevents the wire 10 from being hardened by the brazing material 30 from the portion of the wire 10 where the stopper 20 is provided, so that the wire 10 can be kept in good flexibility. When brazing is performed by immersing the stopper 20 in the molten brazing material 30, the brazing material 30 is prevented from spreading in the length direction of the wire 10 through the thin wires 11. Therefore, it is difficult for the heat of the brazing material 30 to be transmitted to the portion where the worker holds the wire 10, and burns and the like during the brazing operation are prevented.

  Moreover, since the stopper 20 is formed in a cylindrical shape, the opposing area of the wire 10 and the stopper 20 is increased, and the fixing strength of the stopper 20 is further improved.

  In addition, the stopper 20 is formed by rolling a plate-like body into a cylindrical shape. However, since the wire 10 and the stopper 20 are brazed, (for example, the stopper 20 is constituted by a continuous cylindrical body. There is no risk of problems such as a significant decrease in strength (as compared to the case where the Therefore, the stopper 20 can be constructed at low cost by using the rounded plate-like body as the stopper 20.

  Next, the drive device 2 and the valve body drive device 3 concerning embodiment of this invention are demonstrated. As shown in FIG. 5, the drive device 2 according to the present embodiment includes a wire 1 with a stopper and a drive source such as a motor 90 housed in a case 80 (via a power transmission element 91 such as a gear). ) A rotating pulley 40. The stopper 20 is provided on the proximal end side of the wire 10, and the stopper 20 provided on the proximal end side of the wire 10 is engaged with a pulley 40 as a connecting member. For example, as shown in FIG. 6, an engagement recess 41 that can engage the stopper 20 is formed in the pulley 40, and the stopper 20 is engaged so as to be fitted into the engagement recess 41. When the pulley 40 is rotated (normally rotated) by the driving source, the wire 10 is wound around the winding portion 42 on the outer periphery thereof, and the driven body 50 connected to the tip of the wire 10 moves.

  When the wire 10 is wound by the rotating pulley 40, the bendability (easy to bend) of the wire 10 is important. This is because if the wire 10 that is difficult to bend (hard) is used, the load applied to the drive source that rotates the pulley 40 increases. In this embodiment, since the wettability of the brazing material 30 on the surface of the wire 10 is lower than the wettability of the brazing material 30 on the surface of the stopper 20, it will travel between the plurality of thin wires 11 constituting the wire 10. The material 30 is prevented from spreading in the length direction of the wire 10. That is, it is suppressed that parts other than the part to which the stopper 20 is fixed in the wire 10 are hardened by the brazing material 30, and good flexibility of the wire 10 is maintained. Therefore, it is possible to suppress an increase in load applied to the pulley 40 around which the wire 10 is wound and the drive source that rotates the pulley 40.

  The valve body driving device 3 according to the embodiment of the present invention includes the valve body that is the driving device 2 and the driven body 50. The valve body which is the driven body 50 is connected to the tip of the wire 1 with stopper. Specifically, the stopper 20 provided on the distal end side of the wire 10 is connected to the stopper-equipped wire 1 by engaging a valve body as a connecting member. Any structure may be adopted for the connection structure of the valve body using the stopper 20. Further, the wire 10 of the wire with stopper 1 is made of stainless steel in order to prevent corrosion with water. When the pulley 40 is rotated (normally rotated) by the driving source and the winding portion 42 wire 10 on the outer periphery of the pulley 40 is wound, the valve body engaged with the stopper 20 is pulled to open the flow path. When the drive source stops, the pulley 40 rotates (reverses) by the fluid pressure flowing into the flow path, and the valve body returns to the closed state.

  Such a valve body drive device 3 is applied, for example, as a device that drives a valve body that opens and closes a drainage channel of a washing machine. When applied to a washing machine, the valve body is biased to the closed state, and when the washing machine is performing a dehydration operation, the valve body must open the drainage flow path. Vibration occurs during dehydration operation. That is, the valve body driving device 3 of the washing machine must maintain the valve body biased in the closing direction in an open state in an environment in which vibration is generated, and thus the load applied to the stopper 20 fixed to the wire 10. Becomes larger. In the present embodiment, since the stopper-equipped wire 1 having excellent fixing strength of the stopper 20 with respect to the wire 10 is used as described above, there is no possibility that the stopper 20 is detached from the wire 10 due to a load applied to the stopper 20.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

1 Wire with stopper 10 Wire 11 Fine wire 12 Between fine wires (valley)
20 Stopper 30 Brazing material 2 Drive device 40 Pulley (connection member)
3 Valve body drive device 50 Driven body (connection member)

Claims (10)

A wire composed of a plurality of thin wires;
A stopper that prevents the connecting member connected to the wire from coming out of the wire,
A wire with a stopper, wherein a brazing material is interposed between the plurality of fine wires constituting the wire and the stopper.   The wire with a stopper according to claim 1, wherein the wire is formed by twisting a plurality of fine wires.   The wire with a stopper according to claim 1 or 2, wherein the stopper is caulked to the wire, and the brazing material is interposed between the caulked stopper and the wire. .   The wire with a stopper according to claim 3, wherein the brazing of the brazing material is performed by immersing the stopper caulked in the wire in a molten solder.   The wire with a stopper according to any one of claims 1 to 4, wherein the wettability of the brazing material on the surface of the wire is lower than the wettability of the brazing material on the surface of the stopper. .   The wire with a stopper according to any one of claims 1 to 5, wherein the stopper has a cylindrical shape.   The wire with a stopper according to claim 6, wherein the stopper is formed in a cylindrical shape by rounding a plate-like body. A wire with a stopper according to any one of claims 1 to 7,
And a pulley as the connecting member that is engaged with the stopper provided on the proximal end side of the wire with stopper and that winds the wire by being rotated by a driving source. A drive device according to claim 8;
A valve body that is engaged with the stopper provided on the distal end side of the wire with stopper and that opens and closes the flow path as the connecting member;
The wire is formed of stainless steel,
The valve element driving device according to claim 1, wherein the valve element opens the flowing water channel when the wire is wound around the pulley.   The valve body driving device according to claim 9, wherein the valve body opens and closes a drain passage of the washing machine.

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