JPH0621130U - Strike for detection switch - Google Patents

Abstract

(57) [Summary] [Purpose] The rotating plate is lightweight and can reduce the number of manufacturing steps. It can be applied not only to limit switches but also to proximity switches and can be installed in high-speed transport paths. [Structure] A roller receiving recess for engaging and engaging with a roller pivotally attached to the arm tip of the limit switch is provided at the upper end of a support shaft erected on a mounting board on which a limit switch or a proximity switch is mounted, and correspondingly recessed at the edge. Then, the mounting portion of the kick bar and the detection convex portion which can be installed in opposition to the proximity switch are integrally molded with the synthetic resin material so as to correspond to the upper surface side orthogonal to the roller receiving concave portion, and the supporting shaft is provided at the center portion. Attach a rotating plate made of synthetic resin that is integrally molded with a bearing that rotatably fits.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to, for example, a striker of a detection switch arranged on a conveyance path.

[0002]

[Prior art]

 Conventionally, as a striker 2 of this type, for example, a roller arm type limit switch 1 is attached and is attached on a conveying path, there is a striker shown in FIGS. 9 to 12. The striker 2 has one end portion of a substantially rectangular attachment substrate 3. A support shaft 4 is erected on the side thereof, and a rotary plate 5 is rotatably attached to the upper end of the support shaft 4.

The rotating plate 5 is formed by punching out a steel plate or the like, is formed into a disc shape having a predetermined diameter D, and the roller 1 a of the limit switch 1 is fitted on the corresponding side in the diametrical direction. A possible roller receiving recess 6 is provided as a recess, a mounting hole 7 for the bearing member 10 is provided through the center of the rotary plate 5, and a stopper portion is provided in one direction orthogonal to the roller receiving recess 6. 8 is punched out to form a protrusion. Further, a mounting member 9 for the kick bar 11 is mounted by a welding means at a predetermined position on the upper surface on the opposite side of the stopper portion 8. The mounting member 9 has a through hole 9a for the kick bar 11 and a cap screw. A screw hole 9b is formed. A bearing member 10 having a flange portion 10a containing a plurality of steel balls is fixed to the mounting hole 7 of the rotary plate 5 thus formed by welding means. The rotating plate 5 thus formed is rotatably mounted on the upper end side of the support shaft 4 via the bearing member 10, and the limit switch 1 is mounted on the mounting board 3 so that the roller 1a is a roller. The arm 1b of the limit switch 1 and the base mounting pin 1c of the arm 1b are fitted between the stopper portion 8 and the latching pin 12 which is erected in a predetermined position of the mounting substrate 3 and is fitted into the receiving concave portion 6. A tension spring 13 having a predetermined spring pressure is hooked on a line C connecting the support shaft 4.

[0004]

However, in the striker 2, the bearing member 10 having the flange portion 10a and the mounting member 9 of the kick bar 11 are fixed to the rotary plate 5 formed by punching out a steel plate or the like by the welding means. Therefore, there is a problem that a lot of man-hours are required, and if the mounting of the bearing member 10 is misaligned, a malfunction may occur, and the bearing member 10 having the flange 10a may be mounted on the rotating plate 5. Since the diameter of the rotating plate 5 is increased because it is mounted on the conveyor plate, there is a problem that the mounting position on the conveyor path is restricted. Furthermore, the conveyor path that detects a workpiece moving at high speed has a large impact. Since the mitt switch 1 is damaged, there is a problem that it is not suitable.

The present invention has been made to solve the above-mentioned conventional problems. The rotating plate is light in weight, and the number of manufacturing steps can be reduced. An object of the present invention is to provide a striker for a detection switch that can be arranged on a conveyance path.

[0006]

[Means for Solving the Problems]

 In order to solve the above technical problems, the present invention is fitted and engaged with a roller pivotally attached to the arm tip of the limit switch at the upper end of a support shaft that is erected on a mounting board on which a limit switch or a proximity switch is mounted. Correspondingly, a roller receiving concave portion is provided in the edge portion, and a kick bar mounting portion and a detecting convex portion capable of being installed in opposition to the proximity switch are provided in a synthetic resin material corresponding to an upper surface side orthogonal to the roller receiving concave portion. The striker for a detection switch has a structure in which a rotary plate made of synthetic resin in which a bearing that is rotatably fitted to the support shaft is integrally formed is attached to a central portion of the detection switch.

[0007]

[Action]

 With the above configuration, it is possible to reduce the weight and size, to deal with the limit switch and the proximity switch, and to install the limit switch and the high-speed transport path.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. This striker 21 for a detection switch (hereinafter simply referred to as a striker) is composed of a mounting substrate 22, a support shaft 28, and a rotary plate 40.

The mounting board 22 is formed in a substantially rectangular shape as shown in FIG. 3, and a spindle screw hole 23 for screwing a spindle 28 is provided at a predetermined position near the end of the mounting board 22. A screw hole for the stopper pin 33 for the limit switch is provided at a symmetrical position of the predetermined distance t1 of the dimension h1 of the center line C2 orthogonal to the center line C1 passing through the center C of the screw hole 23 for the spindle. 24a, 24b are screwed, and a screw hole 24c is also screwed at a position symmetrical to the screw hole 24b with respect to the center line C1. The screw holes 24b, 24c are provided on the spring hooking pin 35 of the proximity switch 50. It is designed for left-right mounting. Further, screw holes 25a, 25b of a stopper pin 33 for a proximity switch are screwed at symmetrical positions at a predetermined interval t2 of a size h2 from the center C of the center line C1. Further, the mounting screw holes 26a and 26b of the mounting bracket 51 of the proximity switch 50 are screwed at the position of a predetermined distance t3 of the dimension h3 from the center C of the center line C1, and the dimension h4 from the center C. Screw holes 27 for mounting the limit switch 1 are respectively screwed at the positions of the interval t4 of h5.

The support shaft 28 screwed into the support shaft screw hole 23 has a predetermined diameter and a predetermined length as shown in FIG. 4, and has a support shaft screw hole at one end thereof. A screw portion 29 is screwed in a predetermined range for screwing to the screw 23 to adjust its mounting height, and a small diameter portion 30 for rotatably mounting a bearing 47 of a rotating plate 40 described later is formed on the upper end side. A screw hole 31 of a mounting screw 32 is screwed into the small diameter portion 30. Further, since the stopper pin 33 is also used as the limit switch 1 and the proximity switch 50, the screw portion 34 is formed in the screw holes 24a, 24b, 24c and 25a, 25b so that the mounting height can be adjusted. Further, a screw portion 36 for height adjustment is also screwed on a spring hooking pin 35 screwed into the screw holes 24b and 24c, and a coil spring 38 is hooked in a diameter direction on the upper end side thereof. A hole 37 is provided therethrough. The support shaft 28 thus formed is screwed into the support shaft screw hole 23. For example, in the case of the limit switch 1, the stopper pin 33 is screwed into the screw holes 24a and 24b, and at the same time, the support shaft 28 A rotary plate 40 is rotatably attached to the small diameter portion 30.

The rotary plate 40 is made of synthetic resin by injection molding, has a predetermined diameter D1 as shown in FIGS. 5 to 7, and has a roller 1 of the limit switch 1 at its diametrical edge. The roller mounting recess 41 of a is provided with a recess, and a block mounting kick hole 11 having a predetermined height is provided at a symmetrical position on one surface orthogonal to the receiving recess 41. A detection convex portion 44 is formed so as to be able to be installed opposite to the portion 42 and the proximity switch 50. Further, stopper legs 45a and 45b are vertically provided on the lower surface side of the rod mounting portion 42 and the detection convex portion 44, and the stopper leg 45b on the detection convex portion 44 side has screw holes 24b, A hole 46 through which the coil spring 38 is hooked is provided between the spring hooking pin 35 and the spring hooking pin 35, which are screwed to 24c. A bearing 47 is integrally formed in the center of the rotary plate 40 when the rotary plate 40 is injection-molded.

In the rotating plate 40 thus formed, the bearing 47 is fitted to the small diameter portion 30 of the support shaft 28, the inner ring side is pressed and fixed by the mounting screw 32, and the rotating plate 40 is rotatably provided. The receiving recess 41 is along the center line C1 and the arm 1b of the limit switch 1 is along the center line C1 with one of the stopper legs 45a and 45b positioned between the stopper pins 33. The limit switch 1 fitted in the recess 41 is attached to the attachment substrate 22 via the screw hole 27. Further, the kick rod 11 is attached to the rod attaching portion 42 through an attaching hole 43.

The striker 21 having the limit switch 1 attached thereto is arranged so that the kick bar 11 faces the conveyance path, and the kick bar 11 comes into contact with the work moving on the path, whereby the rotary plate 40 is supported by the spindle. The arm 1b of the limit switch 2 is rotated about the pin 1c by this, and the arm 1b of the limit switch 2 is rotated about the pin 28, thereby transmitting an electric signal to perform position control, counting, or an operation command of related equipment. When the kick bar 11 is disengaged from the work, it is returned to its original position by the restoring spring of the arm 2b of the limit switch 1.

Further, in order to attach the proximity switch 50, as shown in FIG. 8, the stopper pin 33 is screwed into one of the screw holes 25a and 25b, and the spring hooking pin 35 is attached to the center line C1. The stopper pin 33 is screwed into the screw hole 24b or 24c on the opposite side. The rotating plate 40 has a coiled coil between the stopper leg 45b on the lower side of the detection convex portion 44 and the holes 37 and 46 of the spring hooking pin 35 with the detection convex portion 44 on the center line C1 side of the proximity switch 50. The spring 38 is hung up.

The proximity switch 50 is mounted via a bracket 51. The bracket 51 is formed into a substantially L shape by a mounting piece 52 and a supporting piece 53, and the mounting piece 52 has a screw hole 26a. , 26b are formed through holes 54, and a mounting hole 55 of the proximity switch 50 is formed through a predetermined position of the support piece 53 so that the proximity switch 50 is attached. The proximity switch 50 is attached so as to face the detection convex portion 44. The pair of the detection switch 50 and the detection convex portion 44 is adjusted by the screw portion 29 of the support shaft 28. The striker 21 having the proximity switch 50 attached thereto is arranged so that the kick bar 11 faces the transport path, and the kick plate 11 comes into contact with the work moving on the path, whereby the rotary plate 40 is rotated by the spindle 2. When the detection convex portion 44 is moved from the position opposite to the proximity switch 50, the proximity switch emits an electric signal to perform position control, counting, or an operation command of related equipment. I do. When the kick bar 11 is disengaged from the work, it is returned to its original position by the restoring force of the coil spring 38.

Since the striker 21 of the present embodiment is configured as described above, it is possible to deal with any deviation of the limit switch 1 and the proximity switch 50 and enhance its versatility. In particular, the rotating plate 40 is different from the conventional welded structure of the rotating plate 5 made of metal, and the roller receiving concave portion 41 which is fitted and engaged with the roller 1a pivotally attached to the tip of the arm 1b of the limit switch 1 is formed at the corresponding edge. The mounting portion 42 of the kick bar 11, the proximity switch 50, and the detection convex portion 44 that can be installed opposite to each other are integrally formed of a synthetic resin material so as to correspond to the upper surface side orthogonal to the roller receiving concave portion 41. Since the bearing 47, which is formed by molding, is integrally formed with the bearing 47 that is rotatably fitted to the support shaft 28, the bearing is made of synthetic resin so that the weight can be reduced and the diameter of the rotary plate 40 can be reduced. As a result, the restriction on the arrangement position can be relaxed and the arrangement range can be expanded. Further, there is an advantage that the restoring spring of the lever 1b of the limit switch 1 can be used for mounting the limit switch 1.

[0017]

[Effect of device]

 Since the present invention is configured as described above, it is possible to deal with any displacement of the limit switch and the proximity switch and to enhance its versatility. In particular, the rotating plate is made of a conventional metal. Unlike the welded structure of the rotating plate in Fig. 3, a roller receiving recess that fits and engages with the roller pivotally mounted on the tip of the limit switch arm is provided in the corresponding edge, and the upper surface side orthogonal to this roller receiving recess is formed. Corresponding to the above, the mounting part of the kick bar and the detection convex part that can be installed opposite to the proximity switch are integrally molded with synthetic resin material, and the bearing that is rotatably fitted to the spindle is integrally molded in the center part. Since it is made of resin, the weight can be reduced, and the diameter of the rotating plate can be made small, so that the restriction on the arrangement position can be relaxed and the arrangement range can be expanded.

[Brief description of drawings]

FIG. 1 is a plan view of a striker to which a limit switch is attached.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of a mounting substrate.

FIG. 4 is a partially cutaway front view of a support shaft.

FIG. 5 is a plan view of a rotating plate.

FIG. 6 is a side view of a rotating plate.

FIG. 7 is a bottom view of the rotating plate.

FIG. 8 is a side view of a striker to which a proximity switch is attached.

FIG. 9 is a plan view of a striker to which a conventional limit switch is attached.

FIG. 10 is a side view of the same.

FIG. 11 is a plan view of a conventional rotary plate.

FIG. 12 is a side view of the rotary plate.

[Explanation of symbols]

 1 Limit Switch 1a Roller 1b Arm 11 Kicking Bar 21 Detection Switch Striker 22 Mounting Board 28 Spindle 40 Rotating Plate 41 Roller Receiving Concave 42 Rod Mounting Part 44 Detection Convex 45a, 45b Stopper Leg 47 Bearing 50 Proximity Switch

Claims (1)

[Scope of utility model registration request] 1. A roller receiving recess for engaging and engaging with a roller pivotally attached to the arm tip of the limit switch is provided at the edge of an upper end of a support shaft erected on a mounting board on which a limit switch or a proximity switch is mounted. A mounting portion of the kick bar corresponding to the upper surface side orthogonal to the roller receiving concave portion and a detection convex portion that can be installed opposite to the proximity switch are integrally molded with a synthetic resin material, and the supporting portion is provided at the center portion. A striker for a detection switch with a synthetic resin rotating plate integrally molded with a bearing that rotatably fits on the shaft.