JP4232959B2 - Knob, terminal terminal, and electronic equipment - Google Patents

Description

  The present invention relates to a knob used in an electronic device, a terminal terminal having the knob, and the electronic device.

  Conventionally, in an electronic device, a screw-type knob has been used to tighten a wire at a terminal terminal to obtain a contact. FIG. 9 is a diagram illustrating an example of a conventional terminal terminal using a conventional knob.

  As shown in FIG. 9, in the conventional terminal terminal, the knob 101 has a screw rod (not shown) of the knob 101 and a tip screw portion 102 </ b> A of the terminal block 102 screwed together so that the various terminals 201 at the tip of the wire rod and wire rod are connected. tighten. The terminal block 102 has a metal tip screw portion 102A and a terminal shaft 102B electrically connected to the tip screw portion 102A. A hole 102C through which a wire is inserted is formed in the tip screw portion 102A. Further, the terminal shaft 102B is connected to a circuit board inside an electric device (not shown) directly or via a conductive wire.

  When fixing a wire or the like to such a conventional terminal terminal, first, in the state shown in FIG. 9A, the knob 101 is rotated and loosened in a predetermined direction, and removed from the terminal block 102 as necessary. As shown in FIG. 9B, a wire, a terminal 201 at the tip of the wire, etc. are arranged between the terminal block 102 and the knob 101, and then the knob 101 is screwed into the tip screw portion 102A and rotated in the reverse direction. Then, as shown in FIG. 9C, the wire rod, the terminal 201 at the tip of the wire rod, and the like are crimped to the terminal block 102.

  Other conventional terminal terminals include the following. A hole is provided in the fixed terminal of the terminal block, and a wire is inserted through the hole. The knob is arranged so as to be rotatable about the axis of the fixed terminal so that the knob does not move in the axial direction of the fixed terminal, and the movable terminal is arranged between the fixed terminal and the knob, and is joined by the knob and the screw. ing. Thereby, by rotating the knob, the movable terminal is pushed out from the knob side to the terminal block side by the screw mechanism, and the wire rod is tightened between the movable terminal and the terminal block (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-85903 (summary, FIG. 1)

  At the time of a test or experiment, in order to reduce contact resistance and ensure the strength of the crimping portion, it is necessary to securely crimp such a wire rod and the terminal block 102 such as the terminal 201 at the tip of the wire rod. From such a viewpoint, tightening with a manual screw type knob is preferable.

  In order to perform manual tightening when arranging multiple terminal terminals in an electronic device, it is necessary for the user's finger to enter between the adjacent terminal terminals (particularly the knob). The interval (distance from the center of one terminal block to the center of the adjacent terminal block) is set to about 19 mm or more. The diameter of the knob is, for example, about 14 millimeters.

  However, recent electronic device products are required to be multi-functional and downsized, and due to the multi-functionality, the number of terminal terminals installed in one electronic device is increasing, and due to downsizing For example, the area for installing the terminal terminals on the front surface of the electronic device is becoming narrower. However, as described above, a certain interval between the terminal terminals is necessary for reliable operation. Miniaturization of products is becoming difficult.

  The present invention has been made in view of the above problems, and an object of the present invention is to obtain a knob, a terminal terminal, and an electronic device that can reduce the size of an electronic device product.

In order to solve the above problems, the knob of the present invention is a knob including a first member and a second member that rotate together during operation, and the first member is a part of its outer shape or The whole has a substantially columnar shape, and has one end thereof, a polygonal end portion in which the outer shape of the cross section perpendicular to the axial direction of the substantially columnar shape is a polygon or a substantially polygonal shape. The member has a cylindrical shape at least one of which is open, and has a polygonal end disposed inside the cylindrical shape, and is slidable in the axial direction of the substantially columnar shape of the first member. A sliding contact portion that contacts the side surface, and a polygon having a shape substantially the same as the polygonal end of the first member or a substantially polygonal hole in a cross section perpendicular to the sliding direction, and the first member during rotation And a rotating contact portion that contacts the polygonal end portion.

  Furthermore, the knob of the present invention has a cross-sectional width perpendicular to the axial direction at the polygonal end portion of the first member in addition to the knob of the above invention, and the sliding of the substantially columnar shape of the first member. It is larger than the width in the part that receives the contact of the contact part.

  Further, the knob according to the present invention includes, in addition to any of the knobs according to the above invention, a slope portion between the polygon end and the portion that receives the contact of the sliding contact portion of the second member in the first member. Have.

  Furthermore, the knob of the present invention includes the first member and the second member as follows in addition to any of the knobs of the above invention. The first member is made of metal. The second member is made of resin, and is insert-molded so that the sliding contact portion is closest to the polygonal end portion of the first member.

  Furthermore, in the knob of the present invention, in addition to any of the knobs of the above invention, the polygonal end portion of the first member has a gradient on the side surface along the axial direction of the substantially columnar shape of the first member. Is.

  Furthermore, in the knob of the present invention, in addition to any of the knobs of the above invention, at least a portion of the first member that receives the contact of the sliding contact portion is plated.

  A terminal terminal according to the present invention is one of a terminal block having one or a plurality of tip portions that are threaded and the knob according to the invention, wherein the first metal member has a screw hole, and One or a plurality of knobs in which a screw that can be screwed with a screw of the terminal block is provided in the screw hole.

  The electronic device of the present invention includes a plurality of terminal terminals of the present invention arranged at a predetermined interval.

  ADVANTAGE OF THE INVENTION According to this invention, the knob which enables size reduction of an electronic device product, a terminal terminal, and its electronic device can be obtained. Furthermore, the manufacturing method of the sliding component which can be applied, for example to manufacture of the knob of this invention and a metal member and a resin member slide can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a front view showing a knob according to Embodiment 1 of the present invention. FIG. 1 (A) is a front view in a state where the overall height of the knob 1 is minimized, and FIG. 1 (B) is a front view in a state where the overall height of the knob 1 is maximized.

  The knob 1 according to Embodiment 1 is a knob for a terminal terminal of an electronic device. In FIG. 1, a knob 1 has a metal collar 1A as a first member, a resin knob body 1B as a second member, and a resin cap 1C as a third member.

  As will be described later, the collar 1A is provided with a screw hole that matches the tip screw portion of the terminal block, and is screwed into the tip screw portion of the terminal block. The collar 1A, the knob body 1B, and the cap 1C rotate and rotate as a unit during operation.

  The knob main body 1B has at least one part of the outer peripheral surface of the collar 1A and at least part of the inner peripheral surface of the knob main body 1B so as to be slidable in a direction perpendicular to the rotation surface (vertical direction of the paper surface) at one end thereof. Are joined, and at the time of rotation, the collar 1A is urged in the same rotation direction by the turning force of the user with respect to the knob body 1B.

  The cap 1C has a size that can be fitted to the other end of the knob body 1B, and has a color according to the type of terminal terminal. Further, when used for the terminal terminal knob 1, a circular hole is provided in the center of the cap 1C so that a banana plug can be inserted as needed.

  FIG. 2 is a diagram showing a collar 1A in the knob 1 according to the first embodiment. 2A is a top view of the collar 1A, FIG. 2B is a front view of the collar 1A, and FIG. 2C is a cross-sectional view of the collar 1A.

  The collar 1A has a substantially columnar shape part or all of its outer shape. Furthermore, one end of the collar 1A has a cross section perpendicular to the substantially columnar axial direction (the vertical direction of the paper surface in FIG. 2B) and the outer shape of the end surface is a regular polygon or a substantially regular polygon. A square end 11 is provided. As shown in FIG. 2A, in the first embodiment, the end surface outline and the cross-sectional outline of the polygonal end portion 11 are hexagonal. Further, the other end is formed with an oval collar 15 that comes into contact with a wire, a terminal (such as a lug terminal or a U-shaped terminal), and the like when tightened to the terminal block.

  In addition, in this Embodiment 1, although the polygon vertex part 11A of the polygon edge part 11 has a predetermined angle, it is formed so that it may be chamfered or has a moderate curvature, for example. You may make it do. When the polygonal vertex portion 11A has a predetermined angle, it is possible to reduce backlash when the portion engages with the knob body 1B. Further, when the polygonal vertex portion 11A is chamfered or formed to have an appropriate curvature, the sliding becomes smooth.

  The side surface 11B of the polygonal end portion 11 has a gradient along the axial direction of the substantially columnar shape of the collar 1A (the vertical direction of the paper surface in FIG. 2B). That is, the hexagonal width (size) of the end face of the polygonal end portion 11 is larger than the hexagonal width (size) of the cross section at a position closer to the flange 15 from the end face of the polygonal end portion 11. . Furthermore, the width of the end surface of the polygonal end portion 11 is designed to be larger than the width (diameter) of the vertical section with respect to the axis of the portion that receives the contact of the knob body 1B, which is the substantially columnar central portion of the collar 1A.

  The contacted portion 12 at the center of the substantially columnar shape of the collar 1A has a cylindrical shape, and the outer peripheral surface thereof receives contact with the knob main body 1B and is a smooth cylindrical curved surface so that the knob main body 1B can slide. It is said. Further, a screw 14 corresponding to the tip screw portion of the terminal block is formed on the inner peripheral surface of the substantially columnar central portion of the collar 1A. Of the surface of the collar 1A, at least the outer peripheral surface of the contacted portion 12 has a surface roughness with a tolerance of, for example, 100 minutes, and is further subjected to a plating process.

  Further, the boundary portion between the polygonal end portion 11 and the contacted portion 12 is not a step in the first embodiment, but is a gradient portion 13.

  For example, the collar 1A is formed by cutting using brass as a material, and then plated.

  FIG. 3 is a diagram showing a knob body 1B in the knob 1 according to the first embodiment. 3A is a top view of the knob body 1B, FIG. 3B is a bottom view of the knob body 1B, and FIG. 3C is a cross-sectional view of the knob body 1B.

  The knob main body 1B has a substantially cylindrical shape with both ends open, and one end (polygonal end 11) of the collar 1A is disposed on the cylindrical inner periphery. A sliding contact portion 21 that contacts the contacted portion 12 of the collar 1A so as to be slidable in the substantially columnar axial direction of the collar 1A is formed at one opening end on the cylindrical inner peripheral side of the knob body 1B. The The contact area between the sliding contact portion 21 and the contacted portion 12, that is, the width of the sliding contact portion 21 in the cylindrical axial direction is set according to the set amount of frictional resistance during sliding. If the width of the sliding contact portion 21 in the axial direction of the cylindrical shape is narrow, the resistance when sliding is reduced, and if the width is wide, the resistance when sliding is increased.

  Further, a regular polygon or substantially regular polygon hole having substantially the same shape as the polygonal end portion 11 of the collar 1A is provided on the inner peripheral side of the knob body 1B on the cross section perpendicular to the sliding direction. Rotating contact portions 22 and 23 that contact the polygonal end portion 11 of the collar 1A when moving are formed. A plurality of grooves 24 are formed on the outer peripheral surface of the knob body 1B along the axial direction of the cylinder. Furthermore, a fitting receiving portion 26 that receives the fitting of the cap 1 </ b> C is formed at the opposite end of the sliding contact portion 21.

  In the first embodiment, the knob body 1B is made of a resin such as ABS resin (acrylonitrile / butadiene / styrene resin), and the sliding contact portion 21 is closest to the polygonal end portion 11 of the collar 1A. Insert molding is performed around the end of the collar 1A. At this time, the rotation contact portion 23 is formed using the polygonal end portion 11 and the gradient portion 13 of the collar 1A as a mold, and the rotation contact portion 22 is not shown as a separate member that is in contact with the collar 1A. Molded using a mold. That is, first, a polygonal end portion 11 is formed by forming a part or all of the outer shape of the metal collar 1A into a substantially columnar shape and making one end thereof a regular polygon or a substantially regular polygon. Next, a polygonal column mold having a cross section of a regular polygon or substantially regular polygon having the same shape as the polygonal end portion 11 of the collar 1 </ b> A is brought into close contact with the end surface of the polygonal end portion 11. Then, the knob body 1B is insert-molded so that the resin material covers the mold and the outer periphery of a part of the collar 1A including at least the polygonal end 11.

  At that time, at least a side surface of the collar 1A may be plated before insert molding. Further, before insert molding, the side surface of the polygonal end portion 11 is inclined so that the cross-sectional width becomes narrower toward the other end portion along the substantially columnar axial direction of the collar 1A. To do. Furthermore, at the time of molding the knob body 1B, the contact area at the time of insert molding of the knob body 1B with respect to the collar 1A is adjusted according to the set amount of the frictional resistance at the time of sliding.

  Further, at the time of insert molding, the groove 24 and the fitting receiving portion 26 are also molded at the same time. Note that the groove 24 and the fitting receiving portion 26 may be formed after insert molding.

  Since the knob body 1A is molded in this way, the shape of the inner peripheral surface of the rotating contact portion 23 is the same as the shape of the outer peripheral surface of a part of the collar 1A (polygonal end portion 11 and gradient portion 13). The portion corresponding to the side surface 11B of the polygonal end portion 11 of the collar 1A and the portion corresponding to the side surface of the gradient portion 13 on the inner peripheral surface of the rotating contact portion 23 are the side surface 11B of the polygonal end portion 11 and the gradient. Each of the side faces of the portion 13 has a slope having the same angle as the slope. The gradient angle for the polygonal end 11 is at least 2 degrees, which is equal to or greater than the draft angle of the molding conditions.

  Further, since two of the collar 1A and a separate mold (not shown) are used, a parting line 25 is formed between the polygon end portion 11 and the mold (not shown).

  The collar 1A and the knob body 1B are molded and arranged so that the sliding contact portion 21 of the knob body 1B contacts the contacted portion 12 of the collar 1A. Therefore, the polygonal end portion 11 of the collar 1A is arranged inside the cylindrical body of the knob body 1B. In this state, the cap 1C is fixed to the fitting receiving portion 26 of the knob main body 1B.

  Next, the case where the knob 1 which concerns on this Embodiment 1 is used for a terminal terminal is demonstrated. FIG. 4 is a front view showing an example of a terminal terminal using the knob 1 according to the first embodiment. FIG. 5 is a cross-sectional view showing a state before and after sliding of the knob 1 according to the first embodiment.

  As shown in FIG. 4A, in this terminal terminal, the screw 1 is mounted on the terminal block 2 by the screw 14 of the collar 1A of the knob 1 and the tip screw portion 2A of the terminal block 2 being screwed together. . The positional relationship between the collar 1A of the knob 1 and the knob body 1B in the case shown in FIG. 4 (A) is in the state shown in FIG. 5 (A), and the end surface on the sliding contact portion 21 side of the knob body 1B is The collar 1A is in contact with the collar 15 of the collar 1A.

  The terminal block 2 has a metal tip screw portion 2A and a terminal shaft 2B electrically connected to the tip screw portion 2A. The screw of the tip screw portion 2A can be screwed into the screw 14 of the metal collar 1A. Further, a hole 2C through which a wire is inserted is formed in the tip screw portion 2A. Further, the terminal shaft 2B is connected to a circuit board (not shown) inside the electric device directly or via a conductive wire.

  In the state shown in FIG. 4A, the knob body 1 </ b> B of the knob 1 slides around the collar 1 </ b> A when pulled in a direction away from the terminal block 2. At this time, when the sliding advances, the gradient portion 13 of the collar 1A advances beyond the parting line 25 of the knob main body 1B and reaches the vicinity of the rotating contact portion 23 at a certain sliding amount position. At this time, the positional relationship between the collar 1A of the knob 1 and the knob body 1B is as shown in FIG. Due to the presence of the slope portion 13, the polygonal end portion 11 of the collar 1A is smoothly guided to the rotating contact portion 23 of the knob body 1B.

  Further, when sliding proceeds from the state shown in FIG. 5B, the side surface 11B of the polygonal end portion 11 of the collar 1A passes through the parting line 25. At this time, since the side surface 11 </ b> B of the polygonal end portion 11 is inclined, the polygonal end portion 11 passes without being caught by the parting line 25. When the sliding proceeds to the sliding limit, as shown in FIG. 5C, the polygonal end portion 11 and the gradient portion 13 of the collar 1A are brought into close contact with the rotating contact portion 23 of the knob body 1B.

  Thus, the polygon end portion 11 and the gradient portion 13 of the collar 1A come into contact with the rotation contact portion 23 of the knob main body 1B by the user's pulling operation. Thereby, as shown in FIG. 4B, the knob main body 1B is pulled out.

  In the state shown in FIG. 4B, when the user picks and turns the knob body 1B of the knob 1 with a finger, the polygon having a polygonal cross section parallel to the turning surface from the turning contact portion 23. A rotational force is transmitted to the end portion 11, and the collar 1 </ b> A rotates together with the knob body 1 </ b> B around the central axis of the knob 1.

  In this way, when the user rotates the knob 1 in a certain direction, the entire knob 1 is rotated away from the terminal block 2 by the screw mechanism. Further, when the user rotates the knob 1, the knob 1 is separated from the terminal block 2 as shown in FIG.

  Even when the slider main body 1B is rotated even when the slider is not slid to the sliding limit, the rotary contact portion 22 of the knob main body 1B contacts the side surface 11B of the polygonal end portion 11 of the collar 1A. Thus, the collar 1A and the knob body 1B rotate and rotate together.

  FIG. 6 is a front view showing a usage example of a terminal terminal using the knob 1 according to the first embodiment. When fixing a wire or the like to the terminal terminal, first, for example, until the state shown in FIG. 4 (C), the knob 1 is rotated and loosened in a predetermined direction, and removed from the terminal block 2 as necessary. As shown in (A), the wire, the terminal 201 at the tip of the wire, etc. are arranged on the tip screw portion 2A of the terminal block 2.

  Thereafter, the knob 1 is screwed into the tip screw portion 2A and rotated in the opposite direction, and the wire rod, the terminal 201 at the tip of the wire rod, and the like are crimped to the terminal block 2 as shown in FIG. And as shown in FIG.6 (C), the knob main body 1B is pushed and slid.

  Thus, when not in use, the knob 1 is in a state where the knob body 1B is pushed in, that is, in a state where the height is the smallest, and in use, in a state where the knob body 1B is pulled out, ie, in a state where the height is largest. The

  As described above, according to the first embodiment, the knob body 1B has at least a part of the outer peripheral surface of the collar 1A and at least the inner peripheral surface of the knob main body 1B so as to be slidable in a direction perpendicular to the rotation surface. A part is joined, and at the time of rotation, the collar 1A is urged in the same rotation direction by the rotational force with respect to the knob body 1B. By configuring the knob in this way, the knob main body 1B can be pulled out. Therefore, if there is a gap enough to pull out the knob main body 1B around the knob main body 1A, the user operates the knob 1 while the knob main body 1B is pulled out, so that the user's finger is adjacent. Since it becomes difficult to interfere with other knobs 1, the interval between the knobs 1 can be reduced, and as a result, the electronic device can be downsized.

Furthermore, according to the first embodiment, the width of the end surface of the polygonal end portion 11 of the collar 1A is the cross section of the contacted portion 12 that receives the contact of the sliding contact portion 21 in the substantially columnar shape of the collar 1A. It is larger than the width (the total width of the cross section perpendicular to the axis). Thereby, at the sliding limit, the movement of the polygonal end portion 11 of the collar 1A is restricted by the sliding contact portion 21 of the knob main body 1B, and the knob main body 1B can be prevented from coming off from the collar 1A.

  Furthermore, according to the first embodiment, the collar 1 </ b> A is provided with the gradient portion 13 between the polygonal end portion 11 and the contacted portion 12. Thereby, engagement with the polygonal edge part 11 and the rotation contact part 23 at the time of sliding is performed smoothly.

  Furthermore, according to the first embodiment, the metal collar 1A and the resin knob body 1B are used, and the sliding contact portion 21 of the knob body 1B is closest to the polygonal end portion 11 of the collar 1A. Thus, the knob body 1B is insert-molded. This eliminates the assembly work of the collar 1A and the knob body 1B as in the case where the collar 1A and the knob body 1B are separately molded, and the accuracy of the sliding portion without considering the fitting tolerance required at the time of assembly. Can be increased. Therefore, the knob 1 having a sliding portion can be efficiently manufactured.

  Further, according to the first embodiment, the side surface 11B of the polygonal end portion 11 of the collar 1A is provided with a gradient along the axial direction of the substantially columnar shape of the collar 1A. Thereby, even if the parting line 25 at the time of shaping | molding exists, engagement at the time of sliding with the polygonal edge part 11 and the rotation contact part 23 is performed smoothly.

  Further, according to the first embodiment, at least the contacted portion 12 of the collar 1A is subjected to the plating process. This eliminates excessive resistance during sliding. In place of the plating process, a coating process using a non-metallic material may be performed, or a lubricant may be used for a contact portion between the collar 1A and the knob body 1B.

Embodiment 2. FIG.
An electronic apparatus according to the second embodiment of the present invention has a plurality of terminal terminals according to the first embodiment arranged.

  FIG. 7 is a front view showing an electronic apparatus according to Embodiment 2 of the present invention. The electronic device 41 is a power supply device, and has a display / operation panel 51, a power switch 52, and four sets of power input / output terminals (or input terminals or output terminals) on the front surface of the apparatus.

  Each input / output terminal has the same structure as the terminal terminal in the first embodiment, and has one knob 53A, 53B, 54A,. Each knob 53A, 53B, 54A,..., 56B has the same structure as the knob 1 according to the first embodiment. However, the color of the cap 1C may be different. For example, the color of the cap 1C is set to red for the knobs 53A, 54A, 55A, and 56A of the positive terminals among the input / output terminals, and the color of the cap 1C is set to the knobs 53B, 54B, 55B, and 56B of the negative terminals. May be white or black.

  These input / output terminals are installed at a predetermined interval INT. FIG. 8 is a diagram for explaining the arrangement of a plurality of input / output terminals in the electronic apparatus 41 according to the second embodiment. FIG. 8 is a top view when two input / output terminals are viewed from above the electronic device 41. As shown in FIG. 8, these input / output terminals are arranged at a predetermined interval INT. When the diameter (width) of the knobs 53A and 54A is R, the gap G between the knob 53A and the knob 54A is a length (INT-R). FIG. 8 shows only two input / output terminals, but the arrangement of other input / output terminals is the same.

  For example, when the knobs 53A and 54A having a diameter R of 14 millimeters are used, the interval INT can be set larger than the diameter R of the knobs 53A and 54A and less than 19 millimeters (for example, 18 millimeters or less). In that case, the sliding stroke amount P should just be more than half of the height of the knob main body 1B. However, this stroke amount P is less than the height of the knob body 1B. For example, when the height of the knob body 1B is 11 millimeters, the sliding stroke amount P may be 6 millimeters.

  For example, when the conventional knob 101 having a diameter R of 14 millimeters is used, it is necessary to perform an operation with a finger at a position tightened by the conventional knob 101. In the case of the electronic device 41, as described in the first embodiment, the rotation operation can be performed after the knob body 1B is pulled out. Therefore, the operation can be performed satisfactorily even when the interval INT is less than 19 mm. is there.

  Each embodiment described above is a preferred example of the present invention, but the present invention is not limited to these, and various modifications and changes can be made without departing from the scope of the present invention. It is.

  For example, in addition to the terminal terminal knob, the knob sliding structure of the present invention can be applied to, for example, an operation knob for adjusting various set values and not separated from the electronic device.

  In each of the above-described embodiments, the pulling operation of the knob body 1B may be performed by the repulsive force of the spring using a spring.

  In each of the above-described embodiments, a groove perpendicular to the sliding direction may be provided on the outer peripheral surface of the knob body 1B, or dimple processing may be performed. As a result, these grooves and dimples are caught on the user's finger during sliding, and the knob body 1B can be easily pulled out.

  Further, a plurality of knobs having different diameters and widths may be arranged in the above-described electronic device. When a plurality of knobs are arranged in a two-dimensional direction, only the arrangement interval INT in one direction may be narrowed. For example, in the input / output terminal of the power supply device, in order to be able to connect an existing plug in which two connection terminals are integrally formed at a predetermined interval, the interval between the positive terminal terminal and the negative terminal terminal is set as follows: The predetermined distance between the existing plugs may be set to narrow the distance (pitch) between one set of positive and negative terminal terminals and another set of adjacent positive and negative terminal terminals.

  In each of the above-described embodiments, instead of the terminal block 2, a terminal block having a plurality of terminal screw portions 2 </ b> A at a predetermined interval may be used.

  Further, the shape of the outer circumference of the polygonal end portion 11 of the collar 1A and the shape of the inner circumference of the rotary contact portions 22 and 23 of the knob body 1B are not limited to polygons and substantially polygons, but may be other than circles. The shape may be an ellipse, or other shape having irregularities in the circumferential direction (for example, a shape having a circular outer periphery).

  In each of the embodiments described above, the gradient portion 13 is provided between the polygonal end portion 11 and the contacted portion 12 in the collar 1A. Instead, the polygonal end portion 11 and the contacted portion are provided. 12 may be connected by a step so that the apex portion formed by the step has an appropriate curvature.

  Further, in each of the embodiments described above, as a specific example, the material of the collar 1A is brass and the material of the knob body 1B is ABS resin, but other metal materials and resin materials may of course be used. Since the resistance feeling at the time of sliding changes according to the shrinkage ratio of the resin material at the time of molding and the expansion coefficient of the metal material, the type of material may be selected according to the desired resistance feeling. That is, when the expansion rate of the metal material from normal temperature to molding is small, and when the shrinkage rate of the resin material before and after solidification is large, the sense of resistance increases. In the opposite case, the resistance is reduced.

  Further, the number of corners of the end face outline and the cross-sectional outline of the polygonal end portion 11 may be other than six. When the number of corners is large, rattling caused by the resin draft during insert molding of the knob body 1B is suppressed, but the contact point between the collar 1A and the knob body 1B during sliding increases, so that the feeling of resistance during sliding is increased. Increase. When the number of corners is small, the opposite tendency occurs. Therefore, the number of corners of the end face outline and the cross-sectional outline of the polygonal end portion 11 may be other than 6, but 6 is suitable as the number of corners of the end face outline and the cross-sectional outline of the polygonal end portion 11.

  Moreover, other sliding parts can be manufactured using the manufacturing method of the knob mentioned above. For example, various sliding parts having a resin guide and a metal moving piece moving along the guide, or various metal members having a metal guide and a resin moving piece moving along the guide The above-described manufacturing method can also be applied to manufacture of a sliding part having a resin member.

  The present invention is applicable to various knobs of electronic devices, for example.

FIG. 1 is a front view showing a knob according to Embodiment 1 of the present invention. FIG. 2 is a diagram illustrating a color in the knob according to the first embodiment. FIG. 3 is a diagram showing a knob body in the knob according to the first embodiment. FIG. 4 is a front view showing an example of a terminal terminal using the knob according to the first embodiment. FIG. 5 is a cross-sectional view showing the state of the knob according to Embodiment 1 before and after sliding. FIG. 6 is a front view showing a usage example of a terminal terminal using the knob according to the first embodiment. FIG. 7 is a front view showing an electronic apparatus according to Embodiment 2 of the present invention. FIG. 8 is a diagram for explaining the arrangement of a plurality of input / output terminals in the electronic apparatus according to the second embodiment. FIG. 9 is a diagram illustrating an example of a conventional terminal terminal using a conventional knob.

Explanation of symbols

1, 53A, 53B, ..., 56A, 56B Knob (sliding part)
2 Terminal block 1A Color (first member)
1B Knob main body (second member)
DESCRIPTION OF SYMBOLS 11 Polygon end part 13 Gradient part 21 Sliding contact part 22, 23 Rotation contact part 41 Electronic device

Claims (8)

A knob comprising a first member and a second member that rotate together during operation;
In the first member, a part or all of the outer shape thereof is formed into a substantially columnar shape, and the outer shape of a cross section perpendicular to the axial direction of the substantially columnar shape is polygonal or substantially multiplicity at one end thereof. A polygonal end that is square,
The second member has a cylindrical shape in which at least one of the first members is open, the polygonal end portion is disposed inside the cylindrical shape, and the first member is slidable in a substantially columnar axial direction of the first member. A cross-section perpendicular to the sliding direction of a sliding contact portion that contacts a substantially columnar side surface of the member and a polygon or a substantially polygonal hole substantially the same shape as the polygonal end portion of the first member. A rotating contact portion that contacts the polygonal end portion of the first member when rotating.
A knob characterized by The width of the cross section perpendicular to the axial direction at the polygonal end of the first member is larger than the width of the portion of the substantially columnar shape of the first member that receives the contact of the sliding contact portion. The knob according to claim 1 . The knob according to claim 2 , wherein the first member has a slope portion between the polygonal end portion of the first member and a portion that receives the contact of the sliding contact portion. The first member is made of metal,
The second member is made of resin, and is insert-molded so that the sliding contact portion is closest to the polygonal end of the first member;
The knob according to any one of claims 1 to 3 , wherein: The knob according to claim 4 , wherein the polygonal end portion of the first member has a slope on a side surface thereof along an axial direction of a substantially columnar shape of the first member. The knob according to any one of claims 1 to 5 , wherein at least a portion of the first member that receives the contact of the sliding contact portion is plated. A terminal block having one or more tip portions that are threaded;
The knob according to any one of claims 1 to 6 , wherein the first member made of metal has a screw hole and can be screwed into a screw of the terminal block in the screw hole. One or more knobs that are threaded;
A terminal terminal comprising: An electronic apparatus comprising a plurality of terminal terminals according to claim 7 arranged at a predetermined interval.

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