JP6436702B2 - Composite housing and lighting lamp - Google Patents

Description

The present invention relates to a composite housing and an illumination lamp.
For example, the present invention relates to a light bulb shaped lamp such as a mini krypton light bulb using a light emitting diode.

  2. Description of the Related Art Conventionally, there is a technology related to a light bulb shaped lamp that can reduce the size of a base while allowing a light source unit to be screwed to the base and arranging a lighting circuit in the base (for example, Patent Document 1).

JP 2012-54069 A

In the light bulb shaped lamp described in Patent Document 1, a cover (corresponding to the inner casing of the present invention) is inserted into the base body (outer casing of the present invention) to prevent it from coming off, but the cover rattles in the insertion direction. There was a problem.
The present invention provides a composite housing in which backlash does not occur in the insertion direction even after a cover (corresponding to the inner housing of the present invention) is inserted into the base (outer housing of the present invention) and prevented from coming off. It is to provide.

The composite housing according to the present invention is
An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined so as to be constricted toward the other end in the axial direction at a position facing the inscribed surface;
A flange having an outer peripheral radius larger than the inner peripheral radius of the press-fit opening, which is provided at an end of the outer surface of the inner casing, and is press-fitted into the press-fit opening to be locked. A buttock to be attached to,
It has a belt | band | zone part protruded toward the other inclined surface from at least any one inclined surface of the said circumscribed surface and the said inscribed surface.

  According to the present invention, after the inner casing is inserted into the outer casing and prevented from coming off, the belt portion pushes back in the direction opposite to the direction in which the inner casing is inserted. Thus, it is possible to configure a composite housing that does not rattle.

1 is a front view of an illumination lamp 100 according to Embodiment 1. FIG. FIG. 2 is a plan view and a bottom view of the illumination lamp 100 according to the first embodiment. FIG. 3 is an exploded perspective view of the illumination lamp 100 according to the first embodiment. FIG. 2 is a component diagram of the illumination lamp 100 according to the first embodiment. Sectional drawing of the illumination lamp 100 of Embodiment 1. FIG. The figure which shows the collar part 44 and the strip | belt part 45 of Embodiment 1. FIG. The figure which shows the relationship between the collar part 44 and the strip | belt part 45 of Embodiment 1. FIG. FIG. 3 is an assembled perspective view of the first embodiment. It is a figure which shows the inner case 40a which concerns on Embodiment 2, (a) is a front view of the inner case 40a, (b) is a perspective view of the inner case 40a. FIG. 10 is an enlarged view of a portion B in FIG. 9 in the inner casing 40a according to the second embodiment. It is a figure which shows the attachment state of the inner housing | casing 40a and the outer housing | casing 20a in the composite housing | casing 101a which concerns on Embodiment 2. FIG. 6 is a cross-sectional view of a composite casing 101a according to Embodiment 2. FIG. It is a figure which shows the inner case 40b which concerns on Embodiment 3, (a) is a front view of the inner case 40b, (b) is a perspective view of the inner case 40b. 6 is a cross-sectional view of a composite casing 101b according to Embodiment 3. FIG. It is a figure which shows the inner case 40c which concerns on Embodiment 4, (a) is a front view of the inner case 40c, (b) is a perspective view of the inner case 40c. 6 is a cross-sectional view of a composite casing 101c according to Embodiment 4. FIG. 10A and 10B are diagrams showing a composite casing 101d according to Embodiment 5, where FIG. 10A is a plan view of the outer casing 20d, FIG. 10B is a partially broken view showing the inside of the outer casing 20d, and FIG. It is a fragmentary sectional view of case 101d. FIG. 10 is an exploded perspective view showing a composite casing 101e according to Embodiment 6. It is a figure which shows the composite housing | casing 101e which concerns on Embodiment 6, and is a perspective view which shows the inner housing | casing 40e and the outer housing | casing 20. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a front view of the illumination lamp 100.
FIG. 2 is a plan view and a bottom view of the illumination lamp 100.
The central axis of the illumination lamp 100 is defined as axis C.
A direction parallel to the axis C is referred to as an axial direction. One end in the axial direction refers to the upper part in the figure. The other end in the axial direction refers to the lower part in the figure.
A direction perpendicular to the axis C and radiating from the axis C is referred to as a radial direction.
The radius means a length in the radial direction around the axis C.

The illumination lamp 100 is a light bulb shaped lamp having a cover 10, an outer housing 20, and a base 70.
For example, the illumination lamp 100 is a mini-krypton type small light bulb using a light emitting diode (hereinafter, LED) as a light source, and the base 70 is an E17 base.
A lower portion of the inner casing 40 is exposed between the outer casing 20 and the base 70.
The composite casing 101 is a combined body of the outer casing 20 and the inner casing 40.
The rear view and the left and right side views of the illumination lamp 100 are the same as the front view except for the base 70, and the illustration is omitted.

The illumination lamp 100 has an outer shape generally referred to as an A shape, and has an eggplant shape or an egg shape as a whole, excluding the base 70.
The ratio between the maximum outer diameter L1 of the illumination lamp 100 and the height L2 of the cover 10 and the outer casing 20 is L1: L2 = 6: 10. In the height L2, the ratio of the height of the cover 10 and the outer casing 20 is 50:65.
The outer casing 20 has a shape in which the outer diameter on the base 70 side is smaller than the maximum outer diameter L1.
The outer peripheral surface of the outer casing 20 has a smooth curved surface as a whole.
The outer peripheral surface of the outer casing 20 has slight irregularities with the inflection point 30 as a boundary.
The upper part from the inflection point 30 presents a convex curved surface slightly bulging outward.
A portion below the inflection point 30 has a concave surface that is slightly recessed inward, and there is a constriction.
A line (outer shell line) on the outer peripheral surface of the outer casing 20 on a plane passing through the axis C draws a smooth S-shaped curve without any straight line portion. This S-shaped curve is a curve with the inflection point 30 as the only inflection point.

Such features of the outer peripheral surface of the outer casing 20 have the following advantages.
1. Since the outer peripheral surface is all curved in the axial direction, the design is improved.
2. Since the lower part of the outer peripheral surface is a concave curved surface, the mounting property to the lighting device (appliance compatibility rate) is improved.
3. Since the convex and concave surfaces are continuous, the strength is increased.
4). In the concave curved surface portion, the area where the belly of a human finger comes into contact increases, and the retention is improved as compared with the case where all are convex curved surfaces alone.

FIG. 3 is an exploded perspective view of the illumination lamp 100.
The cover 10 is a transparent or translucent resin.
The cover 10 has a semi-spheroid shape. In addition, it may be a three-dimensional body composed of a quadric surface such as a hemispherical shape or a dome shape.

The outer housing 20 is made of metal such as aluminum, magnesium, or an alloy containing these.
The outer casing 20 is a heat sink that has high thermal conductivity and high heat dissipation.
The outer casing 20 is a conductor.
The outer casing 20 has an insertion opening 28 at one end in the axial direction and a press-fit opening 29 at the other end in the axial direction.
The outer casing 20 has an outer straight pipe portion 21 and an outer constricted portion 22.
The outer straight pipe part 21 has an inner peripheral surface 26 having a constant inner peripheral radius except for the screw receiving part 31.
The outer constricted portion 22 has an inscribed surface 27 (inclined surface) that is inclined so as to be constricted toward the other end in the axial direction.
The outer housing 20 has a screw receiving portion 31 that swells from the inner peripheral surface 26 toward the shaft. The screw receiving portion 31 extends in the axial direction.
As can be seen from the end face shape of the insertion opening 28, the screw receiving portion 31 is thicker than other portions of the outer casing 20.
The screw receiving portion 31 has a screw hole 32 formed in the axial direction at the center.

The inner housing 40 is made of a resin such as polycarbonate or polybutyl terephthalate.
The inner housing 40 is an insulator having electrical insulation.
The inner housing 40 has an opening 48 at one end in the axial direction and an opening 49 at the other end in the axial direction.
The inner housing 40 includes an inner straight pipe portion 41, an inner constricted portion 42, and a screwed portion 43.
The inner straight pipe portion 41 has an outer peripheral surface 46 having a constant outer peripheral radius except for the groove portion 51.
The inner constricted portion 42 has a circumscribed surface 47 (inclined surface) that is inclined so as to be constricted toward the other end in the axial direction at a position facing the inscribed surface 27. The inscribed surface 27 and the circumscribed surface 47 have the same inclination angle.

The inscribed surface 27 is a surface in contact with the circumscribed surface 47.
The circumscribed surface 47 is a surface in contact with the inscribed surface 27.
The collar portion 44 is a ring-shaped convex portion provided in the vicinity of the end portion of the constricted portion 42.
The flange 44 is present at the end of the circumscribed surface 47 (the end on the side where the opening 49 is present, the lower end of the circumscribed surface 47).
The flange portion 44 is exposed from the lower end of the outer casing 20.
A portion of the inner constricted portion 42 below the flange portion 44 is also exposed from the lower end of the outer casing 20.
A portion of the inner constricted portion 42 above the flange portion 44 is covered with the outer casing 20 and thus is not exposed. However, when the insertion direction is wobbled, a portion above the collar portion 44 of the inner constricted portion 42 is exposed.

The band portion 45 is provided in the middle of the inner constricted portion 42 and closer to the opening 48 than the position of the collar portion 44.
The screw-in portion 43 has a threading to which the base 70 is screwed.

The inner housing 40 has a groove 51 that is recessed toward the axis. The groove portion 51 extends in the axial direction corresponding to the axial length of the screw receiving portion 31.
The inner casing 40 has a certain thickness in the end face shape in the opening 48.
The protrusion 52 is a curved plate that extends from the upper end surface of the inner housing 40 by extending the curved surface forming the groove 51 in the direction of the LED substrate 80 (upward).

The LED substrate 80 is mounted with an LED 81 that is a light source and electronic components. The substrate base of the LED substrate 80 is preferably made of a metal plate such as an aluminum plate, a copper plate, or an alloy plate, or a ceramic substrate, a metal core substrate, a metal core ceramic substrate, or the like in order to improve heat dissipation. Note that a glass epoxy substrate or a paper phenol substrate may be used as long as the temperature of the LED 81 is not more than a specified value.
The LED substrate 80 has a disk shape and covers the insertion opening 28 of the outer housing 20.
A lighting circuit component (not shown) is mounted on the lighting circuit board 90 to constitute a lighting device. When commercial power or the like is supplied from the outside to the lighting circuit board 90 via the base 70, the lighting circuit board 90 converts the external power into lighting power for lighting the LEDs 81 and supplies it to the LED board 80. .

Hereinafter, the assembly of the illumination lamp 100 will be described except for the electrical connection.
A lighting circuit board 90 on which lighting circuit components (not shown) are mounted is housed in the inner housing 40.
The base 70 is screwed into the screw-in portion 43 and attached to the inner housing 40.
The inner casing 40 is inserted into the outer casing 20 from the insertion opening 28 toward the press-fit opening 29 (hereinafter also referred to as an insertion direction X). The insertion direction X is a direction parallel to the axis C.
The inner casing 40 is inserted into the outer casing 20, the flange portion 44 is press-fitted into the press-fit opening 29, and the flange portion 44 is engaged with the press-fit opening 29 so that it does not come out of the press-fit opening 29 in the direction opposite to the insertion direction X. By being stopped, the composite casing 101 is formed.
The LED substrate 80 is fixed to the outer casing 20 with three screws (not shown) so as to cover the insertion opening 28.
Finally, the cover 10 is fitted into or bonded to the upper end of the outer casing 20 to complete the illumination lamp 100.

FIG. 4 is a component diagram of the illumination lamp 100.
FIG. 5 is a BB cross-sectional view taken along a plane passing through the axis of the illumination lamp 100.
FIG. 4A is a cross-sectional view of the cover 10.
FIG. 4B is a front view of the cover 10.
FIG. 4C is a cross-sectional view of the inner housing 40.
FIG. 4D is a front view of the inner housing 40.
FIG. 4E is a cross-sectional view of the outer casing 20.
FIG. 4F is a front view of the outer casing 20.
FIG. 4G is a front view of the lighting circuit board 90.
FIG. 4H is a cross-sectional view of the inner housing 40, which is the same as FIG. 4C.

The outer peripheral radius IL of the outer peripheral surface 46 (the radius IL of the opening 48) is the same as the maximum outer peripheral radius of the circumscribed surface 47, and the outer peripheral surface 46 and the circumscribed surface 47 are continuous.
The outer peripheral radius IL of the outer peripheral surface 46 is larger than the outer peripheral radius IS at the position D where the flange portion 44 of the circumscribed surface 47 is formed.
The circumscribed surface 47 is a frustoconical inner peripheral surface.
The inner peripheral radius OL of the inner peripheral surface 26 (the radius OL of the insertion opening 28) is the same as the maximum inner peripheral radius of the inscribed surface 27, and the inner peripheral surface 26 and the inscribed surface 27 are continuous.
The inner peripheral radius OL of the inner peripheral surface 26 is larger than the minimum inner peripheral radius OS of the inscribed surface 27 (the inner peripheral radius OS of the press-fit opening 29).
The inscribed surface 27 is a frustoconical inner peripheral surface.

The outer peripheral radius IL of the outer peripheral surface 46 is the same as the inner peripheral radius OL of the inner peripheral surface 26. Alternatively, it is increased in advance by an expected manufacturing error.
The minimum inner peripheral radius OS of the inscribed surface 27 is the same as the outer peripheral radius IS of the inscribed surface 47. Alternatively, it is increased in advance by an expected manufacturing error.
There are three groove portions 51, which are equally arranged at intervals of 120 degrees.
There are also three screw receiving portions 31 and they are evenly arranged at intervals of 120 degrees.
The groove 51 is recessed to match the shape of the screw receiving portion 31. The inner casing 40 is inserted into the outer casing 20 so that the groove 51 corresponds to the screw receiving section 31.
As shown in the sectional view of FIG. 5, when the inner casing 40 is inserted into the outer casing 20, the outer peripheral surface 46 is inscribed in the inner peripheral surface 26 and the outer contacting surface 47 is in the inscribed surface 27 except for the portion A. Inscribed in.

FIG. 6 is an enlarged view of a portion A in FIG. 5, and shows the collar portion 44 and the belt portion 45.
FIG. 6A shows a case where there is a collar portion 44 and a belt portion 45.
For comparison, FIG. 6B shows a case where the collar portion 44 and the band portion 45 are not provided.

FIG. 7 is an explanatory diagram of the structure and function of the flange 44 and the band 45.
The inner housing 40 has a collar portion 44 and a belt portion 45 at the inner constricted portion 42.
The flange portion 44 is formed at a position D near the lower end of the circumscribed surface 47.
The flange portion 44 has an outer peripheral radius R2 that is larger than the radius R1 of the circumscribed surface 47 at the position D.
The radius R1 of the circumscribed surface 47 is the same as the minimum inner peripheral radius OS of the inscribed surface 27 (the inner peripheral radius OS of the press-fit opening 29). Alternatively, it is reduced in advance by an expected manufacturing error.
The outer peripheral radius R2 is larger than the inner peripheral radius OS of the press-fit opening 29.

The flange portion 44 has an inclined tapered surface 92 whose radius gradually decreases in the insertion direction X, and an upper side of the tapered surface 92 has a ring surface 93 orthogonal to the axis.
The collar portion 44 has a mountain shape with a sharp cross-sectional shape by a plane passing through the axis.
The angle θ1 formed by the tapered surface 92 and the ring surface 93 (the angle θ1 of the top of the mountain shape) is an angle of less than 90 degrees, for example, an acute angle of 40 degrees to 60 degrees. In FIG. 6, the angle θ1 is 50 degrees.
The angle θ2 formed between the circumscribed surface 47 and the ring surface 93 is an angle of less than 90 degrees, for example, an acute angle of 60 degrees to 80 degrees, and is larger than the angle θ1 of the peak of the mountain shape. In FIG. 6, the angle θ2 is 70 degrees. Thus, the flange portion 44 protrudes in the radial direction like a claw, and can serve to prevent the inner housing 40 from coming off.

Note that the angle θ3 formed between the inscribed surface 27 and the end surface 96 of the outer housing 20 is the same as the angle θ2, and the shape of the upper portion of the flange portion 44 and the lower end portion of the inscribed surface 27 are completely the same. The retaining function is improved.
The top of the chevron 44 is deformed by pressurization and is press-fitted into the press-fit opening 29.

Since the inner casing 40 is softer than the outer casing 20 and more elastic than the outer casing 20, the flange portion 44 passes through the press-fit opening 29 while being deformed during press-fit. Alternatively, the flange portion 44 passes through the press-fit opening 29 with the deformation of the circumscribed surface 47 at the position D.
After the flange portion 44 passes through the press-fit opening 29, the shape of the flange portion 44 is restored, so that the ring surface 93 of the flange portion 44 is caught by the end surface 96 of the press-fit opening 29, and the ring surface 93 of the flange portion 44 is pressed. The inner casing 40 cannot be removed from the outer casing 20 by being locked to the end face 96 of the terminal 29. Since the angle θ2 is an acute angle, the inner housing 40 cannot be removed except for destroying the flange portion 44 when fitted at one end.

The band portion 45 projects from the circumscribed surface (one inclined surface) toward the inscribed surface (the other inclined surface).
The band 45 has an outer peripheral radius R4 that is larger than the radius R3 of the circumscribed surface 47 at the position E where the band 45 is provided. The outer peripheral radius R4 is larger than the radius R5 of the inscribed surface 27 at the position E.
The position E may be anywhere on the circumscribed surface 47 as long as it is above the position D. However, since there are three dents due to the groove 51, in order to form the band 45 at 360 degrees, the portion where the groove 51 does not exist Good. For example, the uppermost portion of the circumscribed surface 47 where the groove portion 51 does not exist, that is, the portion directly below the groove portion 51 extending to the circumscribed surface 47 is preferable.
If the distance between the collar part 44 and the band part 45 is too short, the collar part 44 and the belt part 45 are not deformed with each other because the collar part 44 and the outer surface 47 at the position D are not easily deformed at the time of insertion. It is better to be away from the place so as not to affect. For example, a position that is 1/3 to 1/2 of the height of the circumscribed surface 47 from the lower end (position D) of the circumscribed surface 47 is desirable.

6A, the band portion 45 has a skirt surface 94 that gradually moves away from the axis C in the insertion direction X, and the lower side of the skirt surface 94 has an overhanging surface 95 that is orthogonal to the axis. ing.
The cross-sectional shape by a plane passing through the axis of the band 45 is a mountain shape. In the cross-sectional shape by a plane passing through the axis, the shape of the top of the mountain shape may be an acute angle, a right angle, an obtuse angle, a round shape, a trapezoidal shape, a corrugated shape, or an uneven shape.

In FIG. 6A, the angle θ4 (angle θ4 of the top of the mountain shape) formed by the skirt surface 94 and the projecting surface 95 is 80 degrees.
In FIG. 6A, the band portion 45 is composed of a frustum-shaped skirt surface 94 that is separated from the axis, and a ring-shaped protruding surface 95 that is orthogonal to the axis, and has an apex with an acute angle θ4.

As another configuration, the band portion 45 may be composed of an annular skirt surface 94 parallel to the axis and an overhanging surface 95 orthogonal to the axis, and having a peak at θ4 of 90 degrees.
Alternatively, the band portion 45 may be composed of a truncated cone-shaped skirt surface 94 that approaches the axis and a protruding surface 95 that is orthogonal to the axis, and θ4 may have a blunt apex.
The overhanging surface 95 does not need to be orthogonal to the axis, and may be inclined with respect to the axis.
If the angle θ4 of the top of the mountain is an acute angle, the elasticity of the mountain top increases.
If the angle θ4 of the top of the mountain is an obtuse angle, the durability of the mountain top is increased.
The angle θ4 at the top of the mountain is preferably 80 to 100 degrees. 90 degrees is suitable for both elasticity and durability.

The height L4 of the collar portion 44 is such that the radius R1 of the circumscribed surface at the position D where the collar portion 44 is provided (the position where the collar portion 44 exhibits the maximum outer radius, the top position of the mountain shape) and the maximum outer circumference of the collar portion 44. This is a difference from the radius R2.
The height L3 of the belt portion 45 is determined by the radius R3 of the circumscribed surface at the position E where the belt portion 45 is provided (the position where the belt portion 45 exhibits the maximum outer radius, the top position of the mountain shape) and the maximum outer periphery of the belt portion 35. This is a difference from the radius R4.
The height L4 of the collar portion 44 is larger than the height L3 of the belt portion 45.
The reason for this is to prevent the band 45 from obstructing the press-fitting of the flange 44 into the press-fit opening 29.
Assuming that L4 = L3, the flange portion 44 and the belt portion 45 are simultaneously in contact with the inscribed surface 27 at two locations, and double pressure input is required. If L4 <L3, the band portion 45 comes into contact with the inscribed surface 27 before the flange portion 44, and the elastic force (repulsive force) of the band portion 45 causes the press-fit into the press-fit opening 29 of the flange portion 44. Will interfere.

As shown in FIG. 7C, the top of the band portion 45 is deformed by contacting the inscribed surface 27 in a state after the flange portion 44 is press-fitted into the press-fit opening 29. The belt portion 45 generates an elastic force F that attempts to return its shape. Here, it is assumed that the elastic force F is a force orthogonal to the circumscribed surface 47. The elastic force F is decomposed into a force G parallel to the axis and a force H orthogonal to the axis. Since the belt portion 45 is pressed and deformed in the insertion direction X, the elastic force F is considered to be an upward force rather than a force orthogonal to the circumscribed surface 47. It is considered that the force H perpendicular to the axis is larger than the parallel force G.
A force G parallel to the axis is a force that pushes back the inner housing 40 in a direction opposite to the insertion direction X.

Thus, the band portion 45 has a function of pushing up the inner casing 40 upward in the axis. Therefore, as shown in FIG. 7C, the flange portion 44 is always in contact with the end surface of the inner casing 40, and the outer casing 20 and the inner casing 40 are axially connected as shown in FIG. There is no shakiness.
The force H orthogonal to the axis is a force that pushes back the inner housing 40 in the direction opposite to the radial direction.
The band 45 has a function of centering the inner housing 40 with respect to the outer housing 20. Therefore, even when there is a manufacturing error in the radial direction, the axis of the inner casing 40 substantially coincides with the axis of the outer casing 20, and it is possible to prevent rattling in the radial direction.

The band portion 45 forms a space 91 between the inscribed surface 27 and the inscribed surface 47. This space becomes a gap for heat insulation that suppresses the heat of the inner casing 40 from being transmitted to the outer casing 20.
The outer casing 20 has a role of a heat sink that dissipates heat from the LED substrate 80 into the atmosphere, and the outer casing 20 has a higher temperature than the inner casing 40. The space 91 prevents the heat of the outer casing 20 from being transmitted to the inner casing 40 and the lighting circuit components (electronic components, not shown) of the lighting circuit board 90 housed in the inner casing 40 from being thermally damaged. . The heat of the lighting circuit board 90 is radiated from the base 70 via the inner housing 40.

There are two heat dissipation paths as follows.
High-temperature heat radiation route: LED81 → LED substrate 80 → outer housing 20 → outside air Low-temperature heat radiation route: lighting circuit components (not shown) → lighting circuit board 90 → inner housing 40 → base 70 → socket (not shown) → lighting Appliance (not shown)
It is the outer casing 20 and the inner casing 40 that are in physical contact with each other in these two heat dissipation routes. If there is the space 91, the inscribed surface 27 and the circumscribed surface 47 are separated from each other, so that the heat inflow from the outer casing 20 to the inner casing 40 can be reduced.

  The flange portion 44 engages with the end surface 96 of the outer casing 20 to prevent the inner casing 40 from coming off, but the precision of the mold for manufacturing the inner casing 40 and the environment in which the illumination lamp 100 is used. Depending on the temperature and the age of use of the illumination lamp 100, the engaged portion may be loosened. When the engaged portion is loosened, the inner casing 40 moves in the axial direction inside the outer casing 20. Further, the lighting circuit board 90 inside the inner casing 40 moves in the axial direction inside the outer casing 20.

In this embodiment, by providing the band portion 45, the movement of the inner housing 40 can be prevented even if the engaged portion is loosened.
In addition, the presence of the band portion 45 eliminates rattling between the outer casing 20 and the inner casing 40, and can suppress noise caused by rattling of components during vibration.
Moreover, since there is the belt | band | zone part 45, rattling can be prevented even if it does not adhere | attach the outer housing | casing 20 and the inner housing | casing 40 with an adhesive agent at the time of an assembly. Even when the outer casing 20 and the inner casing 40 are bonded with an adhesive, the amount of adhesive used can be reduced. Further, even when the adhesive is deteriorated and the adhesive effect is lost, rattling can be prevented.

FIG. 8 is an explanatory diagram of the protrusion 52.
The protrusion 52 prevents the lighting circuit board 90 from coming into contact with the LED board 80.
When the inner casing 40 is displaced in the axial direction inside the outer casing 20, the lighting circuit board 90 fixed to the inner casing 40 approaches the back surface of the LED board 80. Since the protruding portion 52 protrudes from the upper end surface of the inner housing 40 by the height H5, even when the inner housing 40 is displaced in the axial direction inside the outer housing 20, the lighting circuit board 90 is connected to the LED board 80. To prevent physical contact with
Further, the protrusion 52 secures a spatial distance and a creepage distance between the lighting circuit board 90 and the LED board 80, and prevents the lighting circuit board 90 and the LED board 80 from being electrically short-circuited.

As shown in FIG. 4, when the lighting circuit board 90 is housed in the inner casing 40, the height H1 of the lighting circuit board 90 in the axial direction is the same as the height H2 of the end face of the inner casing 40. Alternatively, it is lowered in advance by an expected manufacturing error.
Also, as shown in FIG. 4, the height H3 from the flange 44 to the protrusion 52 is the same as the height H4 of the end face of the outer housing 20, or is lowered in advance by an expected manufacturing error. deep.

From the above, the height decreases in the following order.
The upper end surface of the outer casing 20, that is, the upper surface of the protrusion 52 on the back surface of the LED substrate 80 The upper end surface of the inner casing 40 The upper end surface of the lighting circuit board 90 As a result, the upper end surface of the lighting circuit board 90 is It is possible to prevent contact with the back surface.
At least the upper end surface of the lighting circuit board 90 does not approach the back surface of the LED board 80 within the height H5 of the protrusion 52.

As shown in FIG. 8, there are three protrusions 52, which are equally arranged at intervals of 120 degrees.
The protrusion 52 extends the groove 51 in the direction of the LED substrate 80 and has the same curved surface as the groove 51. The groove 51 has a U shape in which a cross-sectional shape by a plane orthogonal to the axis is recessed toward the axis, and the curvature of the protrusion 52 is also a curved surface that is recessed toward the axis. That is, the groove 51 has the same curved surface as the most curved portion of the U-shape.
Therefore, the protrusion 52 is more resistant to pressure than the case where the protrusion 52 is a flat plate or the protrusion 52 is a curved plate having an outer peripheral radius IL formed by extending from the end surface of the inner housing 40.
Further, as shown in FIG. 8, the three protruding portions 52 are arranged corresponding to the three screw receiving portions 31. Therefore, when the protrusion 52 presses the back surface of the LED substrate 80, the screwed portion of the LED substrate 80 is pressed. The protrusion 52 can prevent the LED substrate 80 from being deformed by pushing the screwed portion of the LED substrate 80, and the circuit damage of the LED substrate 80 and the soldering damage of the LED 81 and circuit components can be prevented.

  According to this embodiment, since the protrusion 52 is provided, physical contact between the LED board 80 and the lighting circuit board 90 can be prevented, and electrical insulation between the LED board 80 and the lighting circuit board 90 can be achieved. Can be ensured, and safety can be improved.

Hereinafter, a variation example of this embodiment will be described.
The collar portion 44 and the belt portion 45 do not have to be 360 degrees per turn, and may be interrupted. Alternatively, it may be equally distributed at three or more locations on the same circumference. When provided discretely, each shape of the collar part 44 and the belt | band | zone part 45 may be granular, dome shape, and cone shape.
Two or more belt portions 45 may be provided in the axial direction.

The belt portion 45 may be in the outer housing 20. When the belt portion 45 protrudes from the inscribed surface 27, the inscribed surface 27 is not deformed, but the inscribed surface 47 is deformed so as to be recessed, so that the circumscribed surface 47 can be pushed back upward, and the same effect can be obtained. Play.
The band portion 45 only needs to protrude from at least one of the outer surface 47 and the inner surface 27 toward the other inclined surface.

The hardness relationship between the outer casing 20 and the inner casing 40 may be reversed.
For example, when the material of the outer housing 20 is a soft material, the material of the inner housing 40 is a hard material harder than the outer housing 20, and the belt portion 45 is in the outer housing 20, the belt portion 45 is deformed. Therefore, the circumscribed surface 47 can be pushed back up, and the same effect can be obtained.
Further, for example, when the material of the outer housing 20 is a soft material, the material of the inner housing 40 is a hard material harder than the outer housing 20, and the belt portion 45 is in the inner housing 40, the belt portion 45 is Although not deformed, the outer casing 20 is deformed so as to be dented, so that the circumscribed surface 47 can be pushed back, and the same effect is obtained.
The band portion 45 may be provided in at least one of the outer casing 20 and the inner casing 40, or may be provided in both the outer casing 20 and the inner casing 40.

  The shape of the outer peripheral surface of the outer housing 20 and the shape of the inner peripheral surface of the inner housing 40 do not have to be cylindrical, and may be provided with heat radiation fins, vent holes, terminal blocks, and the like. The inner casing 40 does not have to have a through hole that forms an inner peripheral surface, and the inner casing 40 may have a rod shape or a column shape.

  The shape of the outer peripheral surface of the outer housing 20 and the shape of the inner peripheral surface of the inner housing 40 do not need to match. That is, the inner peripheral surface 26 and the outer peripheral surface 46 do not have to be in contact with each other. Further, the inscribed surface 27 and the outer surface 47 may not be in contact with each other, but the band portion 45 needs to be pressed and deformed between the inscribed surface 27 and the outer surface 47.

  The outer casing 20 and the inner casing 40 do not have to be cylindrical, and may be quadrangular or octagonal. Other polygonal column shapes may be used.

In the illumination lamp 100, an element other than an LED may be used as a light source. For example, a laser diode, organic EL, or the like can be used as the light source. That is, the LED substrate 80 may not be used, and a light source substrate on which a light source is mounted may be used.
Further, the LED substrate 80 may not have a light source mounted thereon, and may be a circuit board on which electronic components other than the light source are mounted. When the LED board 80 is a circuit board on which electronic components other than the light source are mounted, the lighting circuit board 90 does not have to be a lighting device, and may be another circuit board different from the circuit board.

The composite casing 101 can be used in addition to the illumination lamp 100.
For example, when a piping pipe (corresponding to an inner casing) is fixed to a pipe fixing portion (corresponding to an outer casing), the composite casing 101 is used for a piping structure in which the piping pipe is inserted and fixed in the pipe fixing portion. be able to.
Further, for example, when fixing a hose (corresponding to an inner casing) to a water tap (corresponding to an outer casing), the composite casing 101 can be used in a structure in which the hose is inserted and fixed to the tap. .
Further, for example, the composite casing 101 can be used when a rotating shaft (corresponding to an inner casing) is inserted into and fixed to a rotating body (corresponding to an outer casing).

Embodiment 2. FIG.
In the present embodiment, a composite casing 101a composed of an inner casing 40a and an outer casing 20a having different shapes from the inner casing 40 described in the first embodiment will be described.
In the present embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

FIGS. 9A and 9B are diagrams showing the inner casing 40a according to the present embodiment, in which FIG. 9A is a front view of the inner casing 40a, and FIG. 9B is a perspective view of the inner casing 40a.
FIG. 10 is an enlarged view of a portion B in FIG. 9 in the inner housing 40a according to the present embodiment.
FIG. 11 is a diagram showing an attached state of the inner casing 40a and the outer casing 20a in the composite casing 101a according to the present embodiment. FIG. 11 shows an attached state of the inner casing 40a and the outer casing 20a and an enlarged view of a portion C in the composite casing 101a.
FIG. 12 is a cross-sectional view of the composite casing 101a according to the present embodiment. FIG. 12 shows a cross-sectional view of the composite housing 101a in the illumination lamp 100 and an enlarged view of a portion D in the cross-sectional view.

  In the following description, the insertion opening 28 side (opening 48 side, light source side, cover 10 side) will be described as the upper side, and the press-fit opening 29 side (opening 49 side, base side) will be described as the lower side. However, as described above, the directions such as “up” and “down” are only described as such for convenience of description, and do not limit the arrangement or orientation of devices, instruments, components, and the like. .

As shown in FIGS. 9 and 10, the inner casing 40 a according to the present embodiment has substantially the same shape as the inner casing 40 of the first embodiment, but has a slightly different part.
As shown in FIG. 10, the inner casing 40 a includes a standing portion 97 and a ridge standing portion 98 in addition to the configuration of the inner casing 40 of the first embodiment. Other configurations are the same as those of the inner housing 40.
The inner casing 40 a includes a standing portion 97 provided perpendicular to the ring surface 93 on the flange portion 44 side of the circumscribed surface 47. Further, the flange portion 44 includes a flange standing portion 98 provided vertically downward from the outer peripheral edge 931 of the ring surface 93. That is, the upright portion 97 and the upright portion 98 are provided in parallel with the axial direction of the inner casing 40a.

10, the skirt surface 94a of the inner housing 40a corresponding to the skirt surface 94 of the inner housing 40 is different from the skirt surface 94 of the inner housing 40, that is, perpendicular to the projecting surface 95, that is, , Formed parallel to the axial direction. The height L21 of the skirt surface 94a is between 3 and 4 times the height L3 of the belt portion 45, preferably about 3.5 times.
The height L23 of the eaves-standing portion 98 is about ½ of the height L4 of the eaves portion 44. The height L22 of the standing portion 97 is between 1 and 2 times the height L23 of the upright portion 98, preferably about 1.4 times.

FIG. 11 shows a part of the composite casing 101a, and the internal state of the outer casing 20a is indicated by a dotted line.
As shown in FIG. 11, the outer casing 20a according to the present embodiment has substantially the same shape as the outer casing 20 of the first embodiment, but is slightly different.
The outer casing 20 a includes an inscribed standing portion 271 on the inscribed surface 27 of the outer casing 20 a corresponding to the inscribed surface 27 of the outer casing 20. Other configurations are the same as those of the outer casing 20.
As shown in FIG. 11, the outer casing 20 a includes an inscribed standing portion 271 provided in parallel to the axial direction below the inscribed surface 27 (on the press-fit opening 29 side). The width of the portion where the lower edge portion 272 of the inwardly standing portion 271 and the ring surface 93 of the flange portion 44 overlap is defined as L26. The width L26 of the overlapping portion may be about 1/5 to 1/4 of the height L4 of the flange portion 44. Further, the height L27 of the inscribed part 271 may be about twice as long as L4.

  Since the inner casing 40a has the band portion 45, even when the width L26 of the portion where the outer casing 20a and the flange portion 44 overlap is narrow, the attachment state between the outer casing 20a and the inner casing 40a is made strong. can do.

  As shown in the enlarged view of portion C in FIG. 11, the hatched portion of the band 45 is a deformed portion 99 that is a portion that is crushed by the inscribed surface 27 of the outer casing 20a. Assuming that the axial height of the deformed portion 99 is L28 and the width is L29, for example, L28 is about 0.6 times L21 and L29 is about 2.8 times L28. It should be noted that the deforming portion 99 only needs to be crushed by the inscribed surface 27, and the size to be crushed may be any size.

  Further, the relationship among L3, L4, L21, L22, L23, L26, L27, L28, and L29 is not limited to the relationship shown as an example in the present embodiment, and the shape of the inner casing 40a, the outer casing 20a, and the like. Depending on the relationship, it does not matter.

  FIG. 12 shows a case where the outer casing 20 described in the first embodiment is attached to the inner casing 40a. Since the outer surface 47 of the inner housing 40 a has the band portion 45, a space 91 is provided between the inner surface 27 and the outer surface 47. An upper space of the space 91 is a space 91a, and a space below the belt portion 45 is a space 91b. The width of the space 91 is not equal at any position in the vertical direction, and the space 91a and the space 91b may be different. The width L91 of the space 91 and the height L3 of the belt portion 45 are preferably in a relationship in which L91 is narrower than L3 and wider than about 1/3 of L3. In other words, the maximum value of L91 is slightly narrower than L3, and the minimum value of L91 is about 1/3 of L3, preferably about 1/2 of L3.

  Depending on the position of the space 91, it may be wider than L3. For example, in the space 91a, the width L92 may be slightly wider than L3. However, in the vicinity of the belt portion 45, the width L93 of the space 91b needs to be narrower than L3. In order for the outer casing 20 to be securely attached to the inner casing 40a, the band portion 45 is not in a state where it is in contact with the inner surface 27 of the outer casing 20 and pressed by the inner surface 27. Because it will not be. Further, if there is a case where L91 is wider than L3 in the space 91, there is a possibility that rattling occurs.

According to the inner casing 40a according to the present embodiment, since the upright portion 97 and the upright portion 98 are provided, it is possible to make the shape easy to resin-mold.
According to the outer casing 20a according to the present embodiment, since the inwardly standing portion 271 is provided, it is possible to make it easy to mold.

Embodiment 3 FIG.
In the present embodiment, differences from the first and second embodiments will be described.
13A and 13B are diagrams showing the inner casing 40b according to the present embodiment, in which FIG. 13A is a front view of the inner casing 40b, and FIG. 13B is a perspective view of the inner casing 40b.
FIG. 14 is a cross-sectional view of the composite casing 101b according to the present embodiment. FIG. 14 shows a cross-sectional view of the composite housing 101b portion of the illumination lamp 100 and an enlarged view of the E portion of the cross-sectional view.
In the present embodiment, the same components as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIGS. 13 (a), 13 (b), and 14, the inner casing 40b has substantially the same shape as the inner casings 40 and 40a described in the first and second embodiments. In addition to the configuration of the inner casings 40 and 40a, a protrusion 452 is provided.
The protrusion 452 is provided at the end on the side of the insertion opening 28 on the inclined surface of at least one of the inner surface 27 of the outer housing 20 and the outer surface 47 of the inner housing 40b, that is, an upper edge. Projecting from one inclined surface toward the other inclined surface.
In the present embodiment, the protruding portion 452 is provided at an upper end portion of the outer surface 47 of the inner casing 40b and protrudes from the outer surface 47 of the inner casing 40b toward the inner surface 27 of the outer casing 20. To do.

As described in the first embodiment, the outer casing 20 has a cylindrical outer side provided toward the insertion opening 28 from the end on the insertion opening 28 side of the inscribed surface 27, that is, the upper end. A straight pipe portion 21 is provided. The inner housing 40 has a cylindrical inner straight pipe portion 41 provided at a position facing the inner peripheral surface 26 of the outer straight pipe portion 21.
The protruding portion 452 is provided on the inner constricted portion 42 side of the boundary 401 between the inner straight tube portion 41 and the inner constricted portion 42 in the inner casing 40b. That is, the protruding portion 452 is provided on the uppermost portion of the circumscribed surface 47 of the inner constricted portion 42.

  It should be noted that the position where the protrusion 452 is provided may be anywhere on the circumscribed surface 47 as long as it is above the band portion 45, not the uppermost portion. However, it is preferable to press and fix with the inscribed surface 27 of the outer casing 20 at the upper part of the inscribed surface 47 as much as possible.

  In addition, there are three groove portions 51 at the boundary 401 between the inner straight pipe portion 41 and the inner constricted portion 42. As described in the first embodiment, three groove portions 51 are equally arranged at intervals of 120 degrees. Since the protrusion 452 is provided to avoid the groove 51, the protrusion 452 is provided at three locations of the annular boundary 401 where the groove 51 does not exist.

The protruding portion 452 is provided on the circumscribed surface 47 and has an outer peripheral radius R32 that is larger than the radius R31 of the circumscribed surface 47 at the position where the protruding portion 452 is provided. In addition, the protrusion 452 has a mountain-like cross-sectional shape by a plane passing through the axis C, for example.
Note that the shape and function of the protrusion 452 are the same as the shape and function of the band 45 described in the first and second embodiments, and thus detailed description thereof is omitted here.

As shown in the enlarged view of the portion E in FIG. 14, the protrusion 452 forms a space 91 between the inscribed surface 27 and the circumscribed surface 47.
The width of the space 91 is not equal at any position in the vertical direction, and the space 91a and the space 91b may be different. Further, it is preferable that L92 is narrower than L30 and wider than about 1/3 of L30 in the vicinity of the protruding portion 452, that is, the width L92 of the upper space 91a and the height L30 of the protruding portion 452. In other words, the maximum value of L92 is slightly narrower than L30, and the minimum value of L92 is about 1/3 of L30, preferably about 1/2 of L30.
Further, as described above, the width L93 of the space 91b in the vicinity of the band portion 45 is also narrower than the height L3 of the band portion 45. Therefore, in the composite casing 101b, rattling can be prevented by the belt portion 45 below the space 91, and rattling can be prevented by the protruding portion 452 above the space 91.

As described above, according to the composite casing 101b according to the present embodiment, it is possible to prevent rattling of the inner constricted portion 42 and the outer constricted portion 22 in the entire vertical direction.
Further, since the protruding portion 452 exists above the space 91 and the band portion 45 exists below the space 91, the inner housing 40b does not tilt inside the outer housing 20. Therefore, the space 91 between the inner constricted portion 42 and the outer constricted portion 22 can be reliably ensured in the vertical direction as a whole.

Embodiment 4 FIG.
In the present embodiment, differences from the third embodiment will be described.
15A and 15B are diagrams showing the inner casing 40c according to the present embodiment, in which FIG. 15A is a front view of the inner casing 40c, and FIG. 15B is a perspective view of the inner casing 40c.
FIG. 16 is a cross-sectional view of the composite casing 101c according to the present embodiment. FIG. 16 shows a cross-sectional view of the composite housing 101c of the illumination lamp 100 and an enlarged view of each of the F, G, and H portions of the cross-sectional view.
In the present embodiment, the same components as those described in the first to third embodiments are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIGS. 15 (a), 15 (b), and 16, the inner casing 40c has substantially the same shape as the inner casing 40b described in the third embodiment. In addition to the configuration of 40b, a convex portion 453 is provided.
The convex portion 453 protrudes from the outer peripheral surface 46 of the inner straight pipe portion 41 toward the inner peripheral surface 26 of the outer straight pipe portion 21.
The convex portion 453 is provided at an end of the inner straight pipe portion 41 on the insertion opening 28 side. That is, the convex portion 453 is provided at the upper end portion of the outer peripheral surface 46. The convex portion 453 is provided on the uppermost portion of the outer peripheral surface 46.

  In addition, the position where the convex part 453 is provided may be anywhere on the outer peripheral surface 46 even if it is not the uppermost part. However, it is preferable to press and fix the inner peripheral surface 26 as high as possible above the outer peripheral surface 46.

  Further, three groove portions 51 exist on the outer peripheral surface 46 of the inner straight pipe portion 41. As described in the first embodiment, three groove portions 51 are equally arranged at intervals of 120 degrees. Since the convex portion 453 is provided to avoid the groove portion 51, the convex portion 453 is provided at three portions of the annular uppermost portion of the outer peripheral surface 46 where the groove portion 51 does not exist.

  As shown in the F partial enlarged view of FIG. 16, the convex portion 453 is provided on the outer peripheral surface 46 and has an outer peripheral radius R34 that is larger than the radius R33 of the outer peripheral surface 46 at the position where the convex portion 453 is provided. In addition, the convex portion 453 has a rectangular cross-sectional shape by a plane passing through the axis C, for example. Alternatively, Yamagata may be used.

As shown in the F partial enlarged view of FIG. 16, the outer peripheral surface 454 of the convex portion 453 is in contact with the inner peripheral surface 26 of the outer straight pipe portion 21 of the outer housing 20.
The convex portion 453 forms a space 911 between the inner peripheral surface 26 and the outer peripheral surface 46.
The width L94 of the space 911 is not the same at any position in the vertical direction of the outer peripheral surface 46 and the inner peripheral surface 26, and may be different above and below the space 911. The width L94 of the space 911 is preferably narrower than the space 91 between the circumscribed surface 47 and the inscribed surface 27. For example, L94 is 1/3 to 1 time, preferably 2/5 to 3/5 times L91. However, the width L94 of the space 911 and the width L91 of the space 91 may have other relationships.

  As described above, according to the composite casing 101 c according to the present embodiment, the spaces 91 and 99 are secured over the entire vertical direction between the inner casing 40 c and the outer casing 20. In addition, since the composite housing 101c has a convex portion 453 at the top, a belt portion 45 at the bottom, and a protrusion 452 at the position of the boundary 401 that is an intermediate portion between the top and the bottom, The inner casing 40c does not tilt in the outer casing 20. Therefore, the spaces 91 and 99 can be reliably secured over the entire vertical direction of the composite casing 101c, and rattling can be prevented throughout the vertical direction of the composite casing 101c.

Embodiment 5. FIG.
In the present embodiment, differences from the first and second embodiments will be described.
17A and 17B are views showing the composite casing 101d according to the present embodiment, where FIG. 17A is a plan view of the outer casing 20d, and FIG. 17B is a partially cutaway view showing the inside of the outer casing 20d. c) is a partial sectional view of the composite casing 101d.
In the present embodiment, the same components as those described in the first to fourth embodiments are denoted by the same reference numerals, and the description thereof is omitted.

The composite casing 101c according to the present embodiment is obtained by inserting the inner casing 40 described in the first embodiment into the outer casing 20d.
As shown in FIGS. 17A, 17B, and 17C, the outer casing 20d has substantially the same shape as the outer casing 20 described in the first embodiment. In addition to the configuration of the outer casing 20, a protrusion 245 is provided.

The protruding portion 245 is provided at the end portion on the insertion opening 28 side of the inscribed surface 27 of the outer housing 20d. As shown in FIG. 17C, the protruding portion 245 protrudes from the inclined surface of the inscribed surface 27 toward the inclined surface of the outer surface 47 of the inner housing 40.
The protruding portion 245 is provided on the inscribed surface 27 and has an inner peripheral radius R35 that is smaller than the radius R36 of the inscribed surface 27 at the position where the protruding portion 245 is provided. Moreover, the cross-sectional shape by the plane which passes along the axis | shaft C of the protrusion part 245 is a mountain shape, for example. The protrusion 245 has a shape in which the shape of the protrusion 452 described in the first and second embodiments is reversed.

  The position where the protruding portion 245 is provided is on the side of the outer constricted portion 22 at the boundary 201 between the outer straight pipe portion 21 and the outer constricted portion 22 inside the outer casing 20d. However, the position where the protruding portion 245 is provided may be anywhere on the inscribed surface 27 as long as it is between the position where the inscribed surface 27 contacts the band portion 45 and the boundary 201. However, it is preferable that the outer surface 47 is pressure-fixed at the upper part of the inner surface 27 as much as possible.

  Further, at the boundary 201 between the outer straight pipe portion 21 and the outer constricted portion 22, there are three screw receiving portions 31 corresponding to the groove portions 51 of the inner housing 40. As described in the first embodiment, three screw receiving portions 31 are equally arranged at intervals of 120 degrees at positions corresponding to the groove portions 51. Since the protruding portion 245 is provided to avoid the screw receiving portion 31, the protruding portion 245 is provided at three locations of the uppermost portion of the inscribed surface 27 where the screw receiving portion 31 does not exist.

As described above, according to the composite casing 101d according to the present embodiment, the space 91 is reliably ensured between the outer casing 20d and the inner casing 40. It arrange | positions without inclining inside the body 20d.
Further, in the composite casing 101d according to the present embodiment, on the base side (downward), which has a small diameter and is difficult to deform, an inclined surface having a large diameter and a relatively easily deformable surface is provided with a band 45 on the soft inner casing 40. On the upper end side, a protruding portion 245 is provided in the hard outer casing 20d. Therefore, the inner casing 40 can be smoothly press-fitted into the outer casing 20d.

Embodiment 6 FIG.
In this embodiment, differences from Embodiments 1 to 5 will be described.
FIG. 18 is an exploded perspective view showing the composite casing 101e according to the present embodiment.
FIG. 19 is a diagram showing the composite casing 101e according to the present embodiment, and is a perspective view showing the inner casing 40e and the outer casing 20. As shown in FIG.
In the present embodiment, the same components as those described in the first to fifth embodiments are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIG. 18, the composite casing 101 e includes an inner casing 40 e, an additional band 451, an additional protrusion 4531, and an outer casing 20.
The inner casing 40e has substantially the same shape as the inner casing 40 described in the first embodiment, but the inner casing 40e does not have the belt portion 45 that is a component of the inner casing 40.

  The separate band portion 451 and the separate protrusion 4531 are configured as separate parts from both the outer casing 20 and the inner casing 40e, and are inserted into the inner casing 40e so as to be integrated with the inner casing 40e. It is attached.

The separate band 451 is formed in a ring shape from a resin material, for example. The separate band portion 451 is attached to the inner casing 40e so that the screwed portion 43 of the inner casing 40e is inserted into the ring-shaped opening.
As shown in FIG. 19, the separate band portion 451 has a function similar to that of the band portion 45 described in the first embodiment when attached to the inner housing 40 e.

The separate protrusion 4531 is formed in a ring shape from a resin material, for example. However, it has a ring shape in which three locations are recessed inward so as to correspond to the shape of the groove 51 formed in the inner housing 40e. The separate protrusion 4531 is attached to the inner casing 40e so that the upper end portion 402 of the inner casing 40e is inserted into the ring-shaped opening.
As shown in FIG. 19, the separate protrusion 4531 has the same function as the convex portion 453 described in the fourth embodiment in a state where it is attached to the inner housing 40 e.

  The inner casing 40e to which the additional band 451 and the additional protrusion 4531 are attached is press-fitted into the outer casing 20 and is fixed to the internal space of the outer casing 20.

  As described above, according to the composite casing 101e according to the present embodiment, the separate band 451 and the separate protrusion 4531 are separated from both the outer casing 20 and the inner casing 40e. By doing so, the mold for molding the outer casing 20 and the inner casing 40e can be made into a simple shape. Further, by forming the molding die in a simple shape, the outer casing 20 and the inner casing 40e can stably obtain high molding quality.

Hereinafter, the example of a change of Embodiment 2-6 is demonstrated.
The protruding portions 452 and 245 and the convex portion 453 may be provided evenly and discretely at three or more locations on the same circumference, avoiding the groove portion 51 or the screw receiving portion 31. The individual shapes of the protrusions 452, 245 and the protrusion 453 may be granular, dome-shaped, or conical.

  As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 10 Cover, 20 Outer case, 21 Outer straight pipe part, 22 Outer constriction part, 26 Inner peripheral surface, 27 Inner surface, 28 Insertion opening, 29 Press-in opening, 30 Inflection point, 31 Screw receiving part, 32 Screw Hole, 40 Inner housing, 41 Inner straight pipe portion, 42 Inner constriction portion, 43 Screwed portion, 44 Hook portion, 45 Band portion, 46 Outer peripheral surface, 47 Outer surface, 48 Opening, 49 Opening, 51 Groove, 52 Protrusion Part, 70 base, 80 LED board, 90 lighting circuit board, 91 space, 92 taper surface, 93 ring surface, 94 skirt surface, 95 projecting surface, 96 end surface, 97 standing part, 98 standing part, 99 deformation part , 100 Illumination lamp, 101 Composite housing, 201 Boundary, 245 Protruding part, 271 Inscribed standing part, 272 Edge part, 401 Boundary, 402 Upper end part, 451 Separately attached part, 452 Protruding part, 453 Convex part, 45 Surface of the outer periphery, 911 space, 931 outer periphery, projecting portions with another 4531.

Claims (18)

An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
The circumscribed surface and provided on at least one of the inclined surface with the inscribed surface, possess the the band part projects from one inclined surface towards the other inclined surface,
The height of the said collar part is a composite housing | casing larger than the height of the said belt | band | zone part . An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
A belt provided on at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and protruding from one inclined surface toward the other inclined surface;
Have
The belt portions, in a state where the flange portion is pressed into the press-fitting opening, double Gokatamitai that back pressing in the opposite direction to the insertion direction of the inner housing. An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
A belt provided on at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and protruding from one inclined surface toward the other inclined surface;
Have
Said housing, said outer housing softer than body, double Gokatamitai that have a resilient than the outer housing. An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
A belt provided on at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and protruding from one inclined surface toward the other inclined surface;
Have
The outer casing is a conductor in which the insertion opening is covered with an LED substrate,
The inner casing is an insulator that houses a lighting circuit board that supplies power to the LED board,
The inner housing has a protrusion protruding in a certain direction of the LED substrate,
The inner housing has an opening at one end in the axial direction, and has a groove that is recessed toward the axis in the end face shape in the opening,
The protrusions curved plate der Ru double Gokatamitai which extended the portion in which the forming the groove in the direction of the LED substrate. In compound housing,
An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
A belt provided on at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and protruding from one inclined surface toward the other inclined surface;
Have
The outer casing is
From the end of the inscribed surface on the side of the insertion opening, a cylindrical outer straight pipe portion provided toward the insertion opening,
The inner casing is
A cylindrical inner straight pipe portion provided at a position facing the inner peripheral surface of the outer straight pipe portion;
The composite housing is
Double Gokatamitai from the outer peripheral surface of the inner straight tube part Ru provided with a convex portion projecting toward the inner circumferential surface of the outer straight tube portion. The convex portion is a composite housing according to 請 Motomeko 5 provided at the end side of the insertion opening within said straight pipe section. Surface of the outer periphery of the convex portion, the composite casing according to 請 Motomeko 5 or claim 6 are contact with the inner peripheral surface of the outer straight tube portion. Provided at an end portion on the side of the insertion opening in at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and provided with a protruding portion that protrudes from one inclined surface toward the other inclined surface,
The band portion is complex housing according to any one of claims 7 請 Motomeko 1 provided on the side of the press-fitting opening from the protruding portion. The protrusion, the provided circumscribed surface, the composite casing of 請 Motomeko 8, wherein that having a larger outer peripheral radius than the radius of the circumscribed surface at the position where the projecting portion is provided. The protrusion composite housing according to 請 Motomeko 8 or claim 9 that form a space between the inscribed surface and the circumscribing surface. The protrusion composite housing as set forth 請 Motomeko 8 cross section Ru der chevron a plane passing through the axis to any one of claims 10. An outer housing having an insertion opening at one end in the axial direction and a press-fitting opening at the other end in the axial direction, and an inscribed surface inclined so as to be narrowed toward the other end in the axial direction;
An inner housing that is inserted from the insertion opening toward the press-fit opening and has a circumscribed surface that is inclined toward the other end in the axial direction at a position facing the inscribed surface;
A flange provided at an end of the outer surface of the inner casing and having an outer peripheral radius larger than an inner peripheral radius of the press-fit opening, and is press-fitted into the press-fit opening and is locked. A buttock that attaches to the outer casing;
A belt provided on at least one of the inclined surfaces of the circumscribed surface and the inscribed surface, and protruding from one inclined surface toward the other inclined surface;
Have
Provided on an end portion side of the insertion opening in the inclined surface of the front Symbol inscribed surface, provided with a protrusion protruding toward the inclined surface of the circumscribing surface from the inclined surface of the inscribed surface,
The band portion is provided on the press-fit opening side from the protruding portion ,
The projecting portion is a composite casing having an inner peripheral radius smaller than a radius of the inscribed surface at a position where the projecting portion is provided . The protrusion composite housing as set forth 請 Motomeko 8 that form a space in any one of claims 12 between the inscribed surface and the circumscribing surface. The protrusion composite housing as set forth 請 Motomeko 8 cross section Ru der chevron a plane passing through the axis to any one of claims 13. The belt part, the provided circumscribed surface, the composite described from 請 Motomeko 1 that have a larger outer peripheral radius than the radius of the circumscribed surface at a position which is provided a band portion to any one of claims 14 Enclosure. The band portion is complex housing as set forth 請 Motomeko 1 that form a space in any one of claims 15 between the inscribed surface and the circumscribing surface. The band portion is complex housing as set forth 請 Motomeko 1 cross section Ru der chevron a plane passing through the axis to any one of claims 16. A composite housing according to any one of claims 1 to 17 ,
An LED board on which an LED is mounted;
Lighting lamp with a lighting device and for lighting the LED by supplying lighting power to the LED substrate.

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