JPH11283706A - Connector mounting structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To suppress the inclination of a circular connector in the circumferential direction at the time of panel mounting. SOLUTION: A screw portion 11a on the base side of a connector 1 is fitted into a connector mounting hole 2m of a panel 2, and a blocking surface 11b formed of an inclined surface is provided in the screw portion 11a, and the blocking surface 11b is provided. The nut 3 is tightened with the nut 3 in contact with the blocking portion of the hole 2m.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounting structure for suppressing circumferential rotation of a connector mounted on an operation panel surface.

[0002]

2. Description of the Related Art A conventional round connector which is fixed to a panel for mounting a connector with a nut is shown in FIGS.
As shown in (a), (b), and (c), a part of the screw portion is cut off, and the cut portion is used as a contact surface for rotation prevention to prevent the round connector from tilting. That is, in each of the drawings, reference numeral 1 denotes a round connector provided with a flange 1j having a connector screw portion 1a at a rear portion, reference numeral 2 denotes a mounting panel, and reference numeral 3 denotes a nut for stopping the round connector 1 from the front. At the base of the round connector 1, a male screw portion 1a for receiving the nut 3 is provided.
A part of the outer peripheral surface of the screw portion 1a becomes a blocking surface 1b which is cut out in a flat shape. This is a linear blocking portion 2a on the inner peripheral surface of a circular hole 2m for mounting a circular connector formed on the panel 2. The structure is such that the rotation of the circular connector 1 is prevented.

FIGS. 15 (a), 15 (b) and 15 (c) show the dimensional relationship between the connector mounting hole 2m of the panel 2 and the cross-section through the panel of the round connector 1. As is clear from FIG. The size of the connector mounting hole 2m and the outer diameter of the round connector 1 in particular, the screw portion 1a, are both difficult to form in order to obtain high precision in machining, and as a whole, the cross-sectional length of the round connector side (1c) is the panel mounting hole section length (2
The size may be slightly smaller than b). Therefore, if the round connector 1 is fixed using the nut 3, the round connector 3 is inevitably inclined in the circumferential direction (play).
When connecting another connector to the connector pin of this round connector 3, it is difficult to connect this connector, or a load is applied to the connector pin due to the inclination in the circumferential direction. When the connectors are arranged, for example, the positional relationship in the circumferential direction of the connectors is not uniform as shown in FIG. 15C. In this case, it is not easy to attach the other connectors at a fixed angle, and the appearance is remarkable. There was a drawback that the product was deteriorated and the merchantability was impaired. In this case, it is possible to unify the inclination by using a jig or the like, but it takes a lot of trouble and the number of parts increases, which is inefficient.

Further, when the round connector 1 is directly soldered to the board, if the round connector 1 is inclined, a load is applied to the connector pins that fit into the board, and in the worst case, the connector pins may be broken. To avoid this, see FIG.
As shown in Japanese Patent Application Laid-Open No. 9-147942, a strong pin 1d is taken out from the flange 1j side of the connector 1 and inserted into a hole 1t provided in the substrate 4 so that a load is not applied to the connector pin 1u. It has a simple structure. However, this causes an increase in cost by the addition of the pin 1d that receives the load, and it has not been possible to reliably prevent the circumferential inclination of the circular connector 1 itself. As described above, in the related art, from the viewpoint of machining accuracy, if it is desired to avoid the inclination in the circumferential direction after the round connector is attached, an extremely troublesome operation is required.

[0005]

According to the present invention, the other connector of the mating connector can be easily connected to the connector pin by suppressing the circumferential inclination of the round connector with a relatively simple structure. A load is not applied to the connector pins, and even when a plurality of connectors are attached, the inclination angles in the circumferential direction are made to be the same so as to enhance the marketability.

According to the first aspect of the present invention, the inclined surface is provided on the connector side which comes into frictional contact with a part or the entire periphery of the connector mounting hole when the nut is tightened.

According to the second aspect of the present invention, the connector mounting hole is substantially D-shaped, and the inclined surface is brought into contact with a blocking portion formed by a straight side of the hole, and screwed by a nut. Occasionally, the inclined surface is pressed against the blocking portion.

According to the third aspect of the present invention, the inclined surface is constituted by a skirt-like surface which is provided on the root side of the screw portion and whose diameter gradually increases toward the rear.

According to the fourth aspect of the present invention, the connector mounting hole is formed in a square shape, and a square pedestal portion that fits into the square hole is provided on the root side of the screw portion. Was formed on the outer periphery.

According to the fifth aspect of the present invention, the inclined surface is formed at a part of the flange portion for planting the connector pin at the rear portion of the connector, and the inclined surface is formed at the tip of the projection portion projecting from the part of the panel. Or, it is made to contact the bottom surface of the concave portion.

According to the sixth aspect of the present invention, the projection which comes into contact with a part of the inclined surface of the panel when the nut is tightened is formed on the connector side.

According to the invention of claim 7, the friction member is interposed between the outer periphery of the screw portion and the inner periphery of the connector mounting hole.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 shows an embodiment of a structure for attaching a round connector to a panel.
5, the same components as those in FIG. Reference numeral 11 denotes a round connector having a cylindrical shape, and a threaded portion 11a on the base side of the round connector 11 has a diameter larger than that of the connector 11, the outer periphery is threaded, and a flat blocking portion formed on a part of the outer periphery. The surface 11b is inclined with respect to the central axis of the connector 11 so as to hit the linear blocking portion 2a of the round hole 2m of the panel 2. The inclination of the blocking surface 11b is
b is a direction in which the front portion 11h approaches the central axis L. Dimensionally, the round hole 2m of the panel 2 is slightly larger than the screw portion 11a of the round connector 11, and the connector 11,
FIG. 2 shows the relationship between the outer diameters of the panel 2 and the blocking portion 2a which is a straight portion of the round hole 2m.
As shown in (a) and (b), 1f>2b> 1e. Thereby, when the nut 3 is screwed into the screw portion 11a and the round connector 11 is tightened to the panel 2 with the nut 3, some of the obliquely cut blocking surface 11b of the connector 11 becomes As a result, the inclination of the circular connector 11 in the circumferential direction is uniquely determined by the blocking portion 2a which is a straight portion of the panel 2, and the inclination in the circumferential direction is prevented. it can. In terms of machining accuracy, dimensions 1e, 1f, 2
If the magnitude relation of b is maintained, the function as inclination prevention is achieved, and the workability is good.

Embodiment 2 FIG. FIG. 3 shows an embodiment of a structure for attaching a round connector to a panel. In FIG. 3, reference numeral 12 denotes a round connector.
The second threaded portion 12a has a ring-shaped skirt surface 12g behind the threaded portion 12a. The peripheral surface of the skirt surface 12g is gradually inclined so as to gradually increase in diameter toward the rear, and a part of the peripheral surface is provided with a flat blocking surface 12b. When assembled by tightening the straight blocking portion 2a of the mounting round hole 2m and the nut 3, the blocking surface 12b contacts the blocking portion 2a, and the skirt surface 1
2g abuts against the inner peripheral edge of the mounting hole 2m to generate a circumferential frictional force, thereby preventing the connector 12 from inclining in the circumferential direction. Thereby, the circumferential inclination of the round connector 12 is uniquely determined. Dimensionally, the cross-sectional length (1e, 1f) including the blocking surface 12b, which is the portion where the panel contact portion of the round connector 12 is straight, and the blocking portion 2a of the straight portion of the panel surface. Is 2f>2b> 1e. As a result, when the round connector 12 is tightened up with respect to the panel 2 with the nut 3, the blocking surface 12b, which is the straight portion of the connector 12, and the straight blocking portion 2a of the panel 2 are pressed. Mating, and as a result, circular connector 1
The inclination of the panel 2 in the circumferential direction is uniquely determined by the straight portion of the panel 2. Dimension 1 in terms of machining accuracy
If the magnitude relations of e, 1f, and 2b are observed, the function as inclination prevention is achieved, and the workability is good.

Embodiment 3 FIG. 5 shows a structure for attaching a round connector to a panel according to the third embodiment. In this case, the round connector 13 has a square pedestal portion 13g at a portion behind the screw portion 13a, and the pedestal portion 13g fits into the square hole 2n of the panel 2. In this case, the outer peripheral surface of the pedestal portion 13g is inclined, and the inclined surface has a shape in which the inner peripheral surface of the hole 2n is pressed. In addition, the hole 2n and the pedestal portion 13g are not limited to a quadrangle, and the same function can be achieved with other polygons. The square hole 2n for attaching the connector of the panel 2 has a structure in which each side determines the inclination of the outer periphery of the pedestal portion 13g of the pressing connector 13 when assembled by tightening with the nut 3. Dimensionally round connector 1
3 is a cross-sectional length (1e, 1e,
f) and the cross-sectional length (2b) of the rectangular portion of the mounting hole 2n of the panel 2 is 1f>2b> 1e. This allows
When the round connector 13 is tightened up with respect to the panel 2 with the nut 3, some of the sides of the square outer periphery of the pedestal portion 13g hit the square sides of the connector mounting hole 2n. The inclination in the circumferential direction is uniquely determined by the rectangular portion of the hole 2n for attaching a connector of the panel 2. In terms of machining accuracy, if the size relation between the dimensions 1e, 1f, and 2b is maintained, the function as tilt prevention can be obtained, so that the workability is good.

Embodiment 4 FIG. 7 shows a structure for attaching a round connector to a panel according to the fourth embodiment. In FIG. 7, an inclined surface 14 c is provided on a part of the inner peripheral side of a connector pin planting flange 14 h provided at the rear end of the round connector 14, and the panel 2 against which the inclined surface 14 c contacts
The projections 15 are attached to the outer surface of the. As shown in FIG. 8, the tip end surface of the projection 15 contacts the inclined surface 14c. As described above, if the nut 3 is tightened up so that the two are in contact with each other, the circumferential inclination of the circular connector 14 is uniquely determined by the contact of the inclined surfaces. The inclination of the flange 14h of the connector 14 is not limited to the concave shape as shown in FIG. 8, but the same function can be achieved by forming it on the tip of the opposite convex portion 14m as shown in FIG. In this case, panel 2
The contact portion on the side is a recessed portion 2t. Dimensionally, the angle of inclination on the side of the round connector 14 and the height of the protrusion on the rear surface of the panel 2 need only satisfy the condition that the connector 14 comes into contact with the other parts before being tightened up with the nut 3, The properties are good.

Embodiment 5 FIG. 10 shows a structure for attaching a round connector to a panel according to the fifth embodiment.
In FIG. 10, this is the reverse structure of the above-described fourth embodiment, and as shown in FIG.
A protrusion 16c is provided on a part of the inner periphery on the inner surface side of the flange 16h, and a recess 17 is provided on the outside of the panel 2 so that the protrusion 16c is opposed to the bottom.
The right-angled surface 16d at the tip of c is in contact with the inclined surface 17a. At this point, connector 17
Can be determined in the circumferential direction. Alternatively, a method may be considered in which a part of the flange 16h of the round connector 17 is cut straight, and the line is applied to the inclined portion on the back surface of the panel. Dimensionally, workability is good as long as the above-mentioned contact portion satisfies the condition that when the connector is tightened up with a nut, it comes before other portions.

Embodiment 6 FIG. FIG. 12 shows a mounting structure of the round connector 1 to the panel 2 according to the sixth embodiment, and the same components as those in FIGS. 14, 15A and 15B are denoted by the same reference numerals. Reference numeral 18 denotes a rubber ring having a D-shaped shape along the outer circumference of the screw portion 1a including the blocking surface 1b. The rubber ring 18 has a width enough to cover the root side of the screw portion 1a and is inserted between the rubber ring 18 and the inner peripheral surface of the hole 2m. The dimensions are such that the round connector cross-sectional length 1c and the panel hole cross-sectional length 2b are 2b> 1c, and the rubber ring 18 enters the gap generated when the connector is fitted. The width of the rubber ring 18 is slightly larger than the thickness of the panel 2, and the rubber ring 18 is pressed and deformed by closing the nut 3 to fill the space between the round connector 1 and the panel hole 2 m. At this time,
The connector 1 is fixed by the rubber ring 18 and the inclination in the circumferential direction is minimized. At the same time, the space between the connector 1 and the rubber ring 18 and the space between the rubber ring 18 and the panel hole 2m are filled by the deformation of the rubber ring 18 and have a waterproof function.

[0019]

According to the first aspect of the present invention, when the nut is tightened, the inclined surface which comes into contact with a part or all of the inner periphery of the connector mounting hole with friction is provided on the connector side. The circumferential inclination of the connector can be suppressed by the frictional force between the inclined surface and the connector mounting hole.

According to the second aspect of the present invention, the connector mounting hole is substantially D-shaped, and the inclined surface is brought into contact with a blocking portion formed by a straight side of the hole, and screwed by a nut. Since the inclined surface sometimes comes into pressure contact with the blocking portion, the inclination of the connector in the circumferential direction can be surely suppressed with a simple structure.

According to the third aspect of the present invention, the inclined surface is constituted by a skirt-shaped surface provided on the root side of the screw portion and gradually increasing in diameter as it goes rearward. The inclination of the connector in the circumferential direction can be suppressed.

According to the fourth aspect of the present invention, the connector mounting hole is rectangular, and a square pedestal portion that fits into the square hole is provided on the root side of the screw portion. , The connector can be further prevented from being inclined in the circumferential direction by the square hole and the pedestal portion.

According to the fifth aspect of the present invention, the inclined surface is formed on a part of the connector pin planting flange at the rear portion of the connector, and the inclined surface is formed on a part of the panel. Alternatively, since the abutment is made to be in contact with the bottom surface of the concave portion, the position of the inclined surface is separated from the central axis of the connector.

According to the sixth aspect of the present invention, when the nut is tightened, the projection that contacts a part of the inclined surface of the panel is formed on the connector side, so that the circumferential inclination of the connector can be effectively suppressed. it can.

According to the seventh aspect of the present invention, since the friction member is interposed between the outer periphery of the screw portion and the inner periphery of the connector mounting hole, the inclination of the connector in the circumferential direction can be reduced without processing the connector. Can be suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a connector mounting structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing an example of a connector mounting structure according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing an example of a connector mounting structure according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing an example of a connector mounting structure according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing an example of a connector mounting structure according to a third embodiment of the present invention.

FIG. 6 is a sectional view showing an example of a connector mounting structure according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing an example of a connector mounting structure according to a fourth embodiment of the present invention.

FIG. 8 is a sectional view showing an example of a connector mounting structure according to a fourth embodiment of the present invention.

FIG. 9 is a sectional view showing an example of a connector mounting structure according to a fourth embodiment of the present invention.

FIG. 10 is a perspective view showing an example of a connector mounting structure according to a fifth embodiment of the present invention.

FIG. 11 is a sectional view showing an example of a connector mounting structure according to a fifth embodiment of the present invention.

FIG. 12 is a perspective view showing an example of a connector mounting structure according to a sixth embodiment of the present invention.

FIG. 13 is a sectional view showing an example of a connector mounting structure according to a sixth embodiment of the present invention.

FIG. 14 is a perspective view showing an example of a conventional connector mounting structure.

FIG. 15 is a cross-sectional view showing an example of a conventional connector mounting structure.

FIG. 16 is a perspective view showing an example of a conventional connector mounting structure.

[Explanation of symbols]

1, 11, 12, 13, 14, 16 Circular connector 1a, 11a, 12a, 13a, 14a, 16a Connector screw portion 1b, 12b, 14c Blocking surface 1h, 14h Connector flange 2 Panel 2a Blocking portion 3 Nut 4 Board

Claims (7)

[Claims] 1. A connector mounting structure in which a screw portion on a base side of a connector is inserted into a connector mounting hole of a panel, and a nut is screwed onto the screw portion to mount the connector on the panel. A connector mounting structure, characterized in that an inclined surface which is brought into frictional contact with a part or the entire inner circumference of the connector mounting hole when tightening a nut is provided on the connector side. 2. The inclined surface is formed on a part of the outer periphery of the screw portion and is inclined with respect to a central axis of the connector. The connector mounting hole has a substantially D-shape. 2. The connector according to claim 1, wherein the inclined surface is brought into contact with a blocking portion formed of a straight side of the hole, and the inclined surface is pressed against the blocking portion when screwed by a nut. Mounting structure. 3. The connector mounting according to claim 1, wherein the inclined surface is formed as a skirt-shaped surface provided at a root side of the screw portion and gradually increasing in diameter as it goes rearward. Construction. 4. The connector mounting hole has a rectangular shape, and a square pedestal portion that fits into the square hole is provided at a root side of the screw portion, and the inclined surface is formed on an outer periphery of the pedestal portion. The connector mounting structure according to claim 1, wherein 5. The inclined surface is formed at a part of a flange portion for connector pin implantation at a rear portion of the connector, and the inclined surface is formed at a tip of a projection or a bottom surface of a recessed portion projected from a part of a panel. The connector mounting structure according to claim 1, wherein the connector mounting structure is in contact with the connector. 6. A connector mounting structure in which a screw portion on a base side of a connector is inserted into a connector mounting hole of a panel, and a nut is screwed onto the screw portion to mount the connector on the panel. A connector mounting structure, characterized in that a projection, which contacts a part of the panel when the nut is tightened, is formed on the connector side. 7. A connector mounting structure in which a screw portion on a base side of a connector is inserted into a connector mounting hole of a panel, and a nut is screwed on the screw portion to mount the connector on the panel. A connector mounting structure, characterized in that a friction member is interposed between the outer periphery of the connector and the inner periphery of the connector mounting hole.