JP2014011127A - Bulb socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulb socket capable of preventing damage of a bulb and a bulb socket while easily attaching and detaching the bulb socket.SOLUTION: A bulb socket 1 has: a socket base section 10 in which a lower part of a bulb 80 is mounted in a cylinder; a pair of fixing projection sections 20 projecting in a radial outward direction from an outer surface 10a of the socket base section 10; and a flange section 30 projecting in the radial outward direction from the outer surface 10a. The socket base section 10 is inserted in a mounting hole 71 from a design face side while the pair of fixing projection sections 20 correspond to a pair of notch sections 71a formed on a mounting hole 71 of a mounting substrate 70. When rotated around a shaft, the bulb socket base section is fixed to the mounting substrate 70. The bulb socket 1 has a rotating grip 40 comprising at least a pair of operating projection walls 41 projecting upward along a side face 81a of a light emitting section 80 from an upper face 30b of the flange section 30, and arranged so that width center positions in a circumferential direction are spaced from each other by about 180 degrees.

Description

  The present invention relates to a bulb socket to which a bulb as a light source is attached.

2. Description of the Related Art Conventionally, for example, a bulb used as a light source for an interior lighting of an automobile is attached to a bulb socket so as to expose a light emitting portion at the top.
When a valve socket equipped with such a valve is mounted on the back surface of the mounting substrate that is the mounting destination, that is, on the surface of the mounting substrate that is the back side of the design surface, the mounting substrate that is assembled to the interior light of the vehicle interior Since it has to be removed, the work becomes complicated. Therefore, for example, Patent Document 1 proposes a valve socket that can be attached to the surface of the mounting substrate on the design surface side.

  The bulb socket described in Patent Document 1 includes a bottomed cylindrical socket base portion in which a lower portion of a bulb having a light emitting portion at the upper portion is mounted in a cylinder, and a radially outward direction from the outer surface of the socket base portion. A pair of fixing protrusions that are protruded and provided at intervals in the circumferential direction; and a flange portion that protrudes radially outward from the outer surface at a position above the pair of fixing protrusions; When the socket base is inserted into the mounting hole from the design surface side with the pair of fixing protrusions corresponding to the pair of notches formed in the mounting hole of the mounting substrate and rotated about the axis, The edge of the mounting hole is fixed to the mounting substrate so as to be disposed between the upper surface of the pair of fixing protrusions and the lower surface of the flange portion.

Japanese Patent Laid-Open No. 10-162917

  However, in the valve socket described in Patent Document 1, when the valve socket is attached or removed from the design surface side, since the operation portion is not provided on the valve socket, the light emitting portion of the bulb arranged on the design surface side is not provided. By picking and rotating the valve socket, a rotational load is applied to the joint between the valve and the valve socket, which may damage the valve or the valve socket.

  The present invention has been made in view of the above, and an object thereof is to provide a valve socket capable of preventing the valve and the valve socket from being damaged while facilitating the attachment and removal of the valve socket. .

  In order to solve the above-described problems and achieve the object, a bulb socket according to claim 1 of the present invention is a bottomed cylindrical shape in which a lower portion of a bulb having a light emitting portion at an upper portion is mounted in a cylinder. A socket base, a pair of fixing projections projecting radially outward from the outer surface of the socket base, and spaced apart in the circumferential direction; and the outer surface positioned above the pair of fixing projections And the socket base is designed so that the pair of fixing protrusions correspond to the pair of notches formed in the mounting hole of the mounting substrate to be mounted. When inserted into the mounting hole from the surface side and rotated around the axis, the hole edge of the mounting hole is arranged between the upper surface of the pair of fixing protrusions and the lower surface of the flange portion. Fixed to the mounting board In the lube socket, at least a pair of operation protruding walls that protrude upward from the upper surface of the flange portion along the side surface of the light emitting portion and whose center positions in the circumferential direction are arranged at an interval of about 180 degrees. It has the grip for rotation which consists of a part, It is characterized by the above-mentioned.

  In the valve socket according to claim 2 of the present invention, in the above invention, the rotating grip is inclined so that the inner surfaces of the pair of projecting wall portions for operation increase from the bottom toward the top. It is characterized by.

  In the valve socket according to a third aspect of the present invention, in the above invention, the protruding wall portion for operation has a radially outward protruding portion in which both end portions in the circumferential direction are protruded radially outward. It is characterized by becoming.

  In the valve socket according to claim 4 of the present invention, in the above invention, the flange portion is a region where the pair of fixing protrusions overlap when viewed from the valve mounting side in the axial direction of the socket base portion. Further, it is characterized in that it has a flange non-forming portion which is a region where the flange portion is not formed.

  In the valve socket according to claim 1 of the present invention, the pair of operation projecting wall portions of the rotating grip protrude from the design surface side on which the light emitting portion is disposed. The valve socket can be attached to and detached from the mounting substrate, and the valve socket can be rotated around the shaft while grasping the rotation grip. Since the joint with the valve can be prevented from being damaged, the valve and the valve socket can be prevented from being damaged while facilitating the attachment and removal of the valve socket.

  In the valve socket according to the second aspect of the present invention, since the insertion port into which the valve is inserted is enlarged, the valve can be easily attached to the valve socket.

  In the valve socket according to claim 3 of the present invention, since the rotation grip is easily subjected to a rotational load by the radially outward projecting portion, the rotation operation of the valve socket with the rotation grip held. Can be made easier.

  In the valve socket according to claim 4 of the present invention, when the valve socket is attached to and detached from the mounting substrate, the flange portion on the front side of the pair of fixing projections is the flange non-forming portion. Therefore, the positions of the pair of fixing protrusions and the pair of notches can be easily confirmed. As a result, the valve socket Attachment and removal can be facilitated.

FIG. 1 is a diagram for explaining the installation location of an interior lamp incorporating a bulb socket according to an embodiment of the present invention. FIG. 1 is a partially enlarged sectional view of the interior lamp shown in the upper diagram. FIG. FIG. 2 is an exploded perspective view of a main part of the in-vehicle illumination lamp shown in FIG. FIG. 3 is an enlarged perspective view of the valve shown in FIG. FIG. 4 is an enlarged perspective view of the pair of bus bars shown in FIG. FIG. 5 is a view of the mounting substrate shown in FIG. 2 as viewed from below. 6 is an enlarged perspective view of the valve socket shown in FIG. FIG. 7 is a view of the valve socket shown in FIG. 6 as viewed obliquely from below. FIG. 8 is a diagram for explaining how a plurality of valves are transported in a state where the valves are mounted in the valve socket. FIG. 9 is a diagram showing a procedure for attaching the valve socket to the attachment substrate. FIG. 10 is a diagram showing a procedure for attaching the valve socket to the attachment substrate. FIG. 11 is a diagram showing a procedure for attaching the valve socket to the attachment substrate. FIG. 12 is a diagram showing a procedure for attaching the valve socket to the attachment substrate.

  Hereinafter, preferred embodiments of a valve socket according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram for explaining the installation location of the interior lamp 100 in which the bulb socket 1 according to the embodiment of the present invention is incorporated, and the bottom diagram is one of the interior lamp 100 shown in the above diagram. FIG. FIG. 2 is an exploded perspective view of a main part of the in-vehicle illumination lamp 100 shown in FIG. FIG. 3 is an enlarged perspective view of the valve 80 shown in FIG. 4 is a 90 enlarged perspective view of the pair of bus bars shown in FIG. FIG. 5 is a view of the mounting substrate 70 shown in FIG. 2 as viewed from below. FIG. 6 is an enlarged perspective view of the valve socket 1 shown in FIG. FIG. 7 is a view of the valve socket 1 shown in FIG. 6 as viewed obliquely from below.
For convenience, the vertical direction is defined as shown by the arrows in the figure.
For example, as shown in FIG. 1, a bulb socket 1 according to an embodiment of the present invention is incorporated in an interior lighting 100 of an automobile and is fitted with a bulb 80 serving as a light source.
The interior illumination lamp 100 is installed on the ceiling panel 200 of the automobile C, and includes a housing 50, a lens 60, a mounting substrate 70, a bulb 80 serving as a light source, a pair of bus bars 90, and a pair of bus bars 90. It has a valve socket 1 to be mounted.

  The housing 50 has a rectangular tube shape, the mounting substrate 70 is fixed inside, and the lens 60 that collects the light emitted from the bulb 80 is fixed to the opening 50a on the design surface side. This lens 60 is configured to be easily removable from the design surface side.

The attachment substrate 70 is a substrate to which the valve socket 1 is attached, and is realized by a printed wiring board, for example, and constitutes a power supply circuit substrate to the valve 80. The mounting substrate 70 includes a mounting hole 71 through which the valve socket 1 is inserted, and a connection terminal 72 that is an electrical connection portion with the valve 80.
The mounting hole 71 has a substantially circular shape whose outer shape corresponds to the cross-sectional outer shape of the bulb socket 1, and a pair of cutout portions 71 a are formed at an interval of approximately 180 degrees in the circumferential direction.
The connection terminal 72 is formed around the edge of the mounting hole 71 on the surface of the mounting substrate 70 (hereinafter referred to as the back surface) which is the back side of the design surface, and is connected to the valve electrode via the pair of bus bars 90. It has become.

  The bulb 80 is a so-called wedge-based bulb, and includes a light emitting portion 81 that emits light from a filament (not shown) accommodated inside a cylindrical glass member, and a pair of bulb terminals 82a of an anode and a cathode. And an electrode part 82 provided.

The pair of bus bars 90 is a metal member formed by punching and bending a conductive metal plate, and fixes the valve 80 in the valve socket 1, as well as the valve 80, the mounting substrate 70, and the like. Are electrically connected.
Each bus bar 90 has a pair of plate-like portions 92 formed to face each other by bending a metal plate at a bending portion 91, and a slit shape downward from the upper end edge surface 92 a of each plate-like portion 92. A valve clamping portion 94 that clamps the valve 80 between a pair of elastic pieces 93 formed by being cut, and an upper end protruding from the upper end of the bending portion 91, with the tip portion bent outward in the horizontal direction. The substrate contact elastic piece portion 95 and the locking portion 96 are provided.

The valve clamping portion 94 is bent so that the upper end portion of each elastic piece portion 93 is inflated inward and the tip portions are separated from each other toward the outside, and the inflated portion is in contact with the valve terminal 82a. Thus, the valve 80 is clamped.
The substrate contact elastic piece 95 is formed with a bulging contact portion 95b bulging upward in a hemispherical shape at a horizontal bending tip portion 95a bent outward in the horizontal direction, and this bulging contact portion 95b. Is elastically brought into contact with the connection terminal 72 of the mounting substrate 70.
The locking portion 96 is cut and raised from the outer surface of the bent portion 91 so as to be engaged with a valve-side locking portion (not shown) provided in the cylinder of the valve socket 1, and the bus bar 90 is moved inside the valve socket 1. It is locked at the attachment completion position.

  Moreover, since the part located between the board | substrate contact elastic piece part 95 and each elastic piece part 93 among the upper end edge surfaces 92a of a pair of plate-shaped part 92 is formed along a horizontal direction, it is the bus bar 90. It functions as a pressing part for pressing toward the assembly direction.

The bulb socket 1 protrudes radially outward from a bottomed cylindrical socket base 10 in which a lower portion of a bulb 80 having a light emitting portion 81 on the upper portion is mounted in a cylinder, and an outer surface 10a of the socket base 10. A pair of fixing protrusions 20 provided at intervals in the circumferential direction, and a flange portion 30 protruding radially outward from the outer surface 10a located above the pair of fixing protrusions 20. Become.
In the valve socket 1, the socket base 10 is attached to the attachment hole 71 from the design surface side by causing the pair of notch portions 71a formed in the attachment hole 71 of the attachment substrate 70 to be attached to correspond to the pair of fixing protrusions 20. Is attached to the mounting substrate 70 so that the hole edge 71b of the mounting hole 71 is disposed between the upper surface 20a of the pair of fixing projections 20 and the lower surface 30a of the flange portion. It is supposed to be fixed to.

The pair of fixing protrusions 20 are provided at an interval of approximately 180 degrees in the circumferential direction.
Each of the fixing protrusions 20 has a substrate wide surface portion 21, a bus bar tip arrangement portion 22, and a substrate contact surface portion 23 facing from the front to the rear in the rotational direction for mounting the valve socket 1 (hereinafter referred to as the mounting rotational direction). Are provided sequentially.

  The board wide surface portion 21 is a surface that is inclined so as to be inclined downward in the mounting rotation direction. The board wide surface portion 21 becomes a portion that starts to contact the notch portion 71a when the bulb socket 1 is attached, so that the fixing protrusion 20 is smoothly moved to the back surface of the attachment substrate 70. It has become.

  The bus bar tip arrangement portion 22 is arranged between the substrate expansion surface 21 and the substrate contact surface 23 and is formed so as to be recessed with respect to the substrate contact surface 23 so that the horizontal bending tip portion 95a is fitted. It is supposed to be. The bus bar tip placement portion 22 has a depth of recess so that the peripheral surface of the bulging contact portion 95b of the horizontal bending tip portion 95a is substantially flush with the substrate contact surface 23. For this reason, the bulging contact portion 95 b protrudes from the substrate contact surface 23 and is elastically brought into contact with the connection terminal 72 of the mounting substrate 70.

  The flange portion 30 has a flange non-forming portion 31 that is a region where the flange portion 30 is not formed in a region where the pair of fixing protrusions 20 overlap when viewed from the mounting side of the valve 80 in the axial direction of the socket base 10. It becomes. For this reason, the positions of the pair of fixing protrusions 20 can be confirmed from the mounting side of the valve 80 in the axial direction of the socket base 10.

  Further, the valve socket 1 extends downward from one edge of the flange portion 30 that forms each flange non-forming portion 31, and comes into contact with the edge surface of the cutout portion 71a at the rotation completion position. It has a pair of rotation control part 24 which controls rotation of this.

The valve socket 1 includes a rotation grip 40 that serves as a rotation operation unit of the valve socket 1.
The rotating grip 40 protrudes upward from the upper surface 30b of the flange portion 30 along the side surface 81a of the light emitting portion 81 of the bulb 80, and the center position of the circumferential width is arranged at an interval of about 180 degrees. It consists of a pair of protruding wall portions 41 for operation. The operator can easily rotate the valve socket 1 by picking the pair of projecting wall portions 41 for operation and applying a force in the rotational direction around the axis of the valve socket 1.

  The pair of operation protruding wall portions 41 are inclined so that the inner surface 41a increases the inner diameter from the lower side to the upper side. That is, the insertion port into which the valve 80 is inserted is enlarged. Therefore, when the valve 80 is attached to the valve socket 1, the valve 80 is unlikely to come into contact with the inner surface 41 a of each operation protruding wall portion 41.

  Each operation protruding wall portion 41 has a radially outward protruding portion 42 in which both end portions in the circumferential direction protrude outward in the radially outward direction. For this reason, the grip 40 for rotation becomes easy to receive a rotational load by the radial direction protrusion part 42. As shown in FIG.

  Further, as shown in FIG. 8, when the plurality of valves 80 are mounted in the valve socket 1 and are transported in a bag, the pair of operation protruding wall portions 41 of the valve socket 1 are The light emitting part 81 of the bulb 80 is protected from the side surface side.

  Here, the procedure for attaching the valve socket 1 to the attachment substrate 70 will be described with reference to FIGS. 9 to 12 are views showing a procedure for attaching the valve socket 1 to the attachment substrate 70. FIG. 11 and 12 show two views of the mounting state of the valve socket 1 to the mounting substrate 70 as viewed from the front and back of the mounting substrate 70. FIG.

  First, after attaching a pair of bus bars 90 to the valve socket 1, the operator attaches the valve 80 in the cylinder of the valve socket 1 (see FIG. 9). Each bus bar 90 is pushed into the tube of the valve socket 1 while being pressed downward on the upper end edge surface 92a, and is fixed to the mounting completion position in the valve socket 1 via the locking portion 96, whereby the horizontal bending tip The portion 95a is arranged in the bus bar tip arrangement portion 22.

  Thereafter, the operator inserts the valve socket 1 from the design surface side into the mounting hole 71 of the mounting substrate 70 in the housing 50 from which the lens 60 is removed (see FIG. 10). At this time, the operator inserts the valve socket 1 into the mounting hole 71 so that the pair of fixing protrusions 20 are inserted through the pair of notches 71a. In addition, since the position of a pair of protrusion part 20 for fixation can be easily confirmed from the design surface side by the flange non-formation part 31, this position alignment operation becomes an easy operation.

  Thereafter, the operator attaches the valve socket 1 and rotates it in the rotation direction (see FIG. 11). Since this operation is performed while the operator grips the rotation grip 40, a rotational load is applied to the valve socket 1 itself, so that the rotational load is not applied to the valve 80. By the rotation of the valve socket 1, the pair of fixing protrusions 20 are moved on the back surface side of the mounting substrate 70, whereby the bulging contact portion 95 b is connected to the connection terminal 72 of the mounting substrate 70.

  Thereafter, the operator rotates the valve socket 1 in the mounting rotation direction until the rotation restriction unit 24 makes the rotation impossible, thereby completing the mounting of the valve socket 1 (see FIG. 12).

  In addition, when removing the valve socket 1 from the attachment board | substrate 70, the valve socket 1 is rotated in the direction opposite to the attachment rotation direction. At this time, the operator rotates the valve socket 1 while grasping the rotation grip 40 as in the case of mounting the valve socket 1.

  In the valve socket 1 according to the embodiment of the present invention, the pair of operation projecting wall portions 41 of the rotation grip 40 are projected to the design surface side on which the light emitting portion 81 is disposed. Since the valve socket 1 can be rotated about the axis while grasping the rotation grip 40, a rotational load is applied to the valve 80. Therefore, the joint between the valve socket 1 and the valve 80 can be prevented from being damaged. As a result, the valve socket 1 and the valve socket 1 can be easily attached and detached while the valve socket 1 and the valve socket 1 are attached. Damage can be prevented.

  In addition, the valve socket 1 according to the embodiment of the present invention can be easily attached to the valve socket 1 because the insertion port into which the valve 80 is inserted is enlarged.

  Further, in the valve socket 1 according to the embodiment of the present invention, since the rotation grip 40 is easily subjected to a rotational load by the radially outward projecting portion 42, the valve socket 1 with the rotation grip 40 gripped is used. The rotation operation can be facilitated.

  Further, in the valve socket 1 according to the embodiment of the present invention, when the valve socket 1 is attached to and detached from the attachment substrate 70, the flange portion 30 on the front side of the pair of fixing projections 20 is not formed with a flange. Since the portion 31 does not overlap the pair of fixing protrusions 20, the positions of the pair of fixing protrusions 20 and the pair of notches 71a can be easily confirmed, and as a result, the valve The socket 1 can be easily attached and detached.

  Further, in the bulb socket 1 according to the embodiment of the present invention, the pair of operation protruding wall portions 41 protect the light emitting portion 81 of the bulb 80 from the side surface. When transported in a state of being mounted on the valve 80, it is possible to prevent the valve 80 from being damaged.

  In addition, although the valve socket 1 which concerns on the Example of this invention illustrated what was provided with a pair of operation protrusion wall part 41, not only this but the operation protrusion wall part 41 is the width | variety of the circumferential direction. As long as the center positions are provided in pairs with an interval of approximately 180 degrees, a pair of or more may be provided.

  In addition, the valve socket 1 according to the embodiment of the present invention is exemplified by the rotating grip 40 having the radially outward projecting portion 42. However, the present invention is not limited thereto, and the valve socket 1 has a structure that easily receives a rotational load. Any other structure may be used. For example, you may make it make uneven | corrugated shape so that the outer surface of each operation protrusion wall part 41 may not slip easily.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

DESCRIPTION OF SYMBOLS 1 Valve socket 10 Socket base 10a Outer surface 20 Fixing protrusion 20a Upper surface 21 Substrate wide surface 22 Busbar tip arrangement portion 23 Substrate contact surface portion 24 Rotation restricting portion 30 Flange portion 30a Lower surface 30b Upper surface 31 Flange non-forming portion 40 Rotating grip 41 Projection wall 41a inner surface 42 radially outward projection 50 housing 50a opening 60 lens 70 mounting substrate 71 mounting hole 71a notch 71b hole edge 72 connection terminal 80 valve 81 light emitting unit 81a side surface 82 electrode unit 82a valve terminal 90 bus bar 91 bending portion 92 plate-like portion 92a upper end edge surface 93 elastic piece portion 94 valve clamping portion 95 substrate contact elastic piece portion 95a horizontal bending tip portion 95b bulging contact portion 96 locking portion 100 indoor illumination lamp 200 ceiling panel

Claims (4)

The bottom part of the bulb having the light emitting part at the upper part is a bottomed cylindrical socket base mounted in the cylinder, and projects radially outward from the outer surface of the socket base, and is provided at intervals in the circumferential direction. A pair of fixing protrusions and a flange portion protruding radially outward from the outer surface at a position above the pair of fixing protrusions, and formed in an attachment hole of an attachment substrate to be attached When the socket base is inserted into the mounting hole from the design surface side with the pair of fixing protrusions corresponding to the pair of cutout portions and rotated about the axis, the edge of the mounting hole is In the valve socket fixed to the mounting substrate so as to be disposed between the upper surface of the pair of fixing protrusions and the lower surface of the flange portion,
It consists of at least a pair of projecting wall portions for operation that protrude upward from the upper surface of the flange portion along the side surface of the light emitting portion, and whose center positions in the circumferential direction are arranged at an interval of approximately 180 degrees. A valve socket characterized by having a grip for rotation. The rotating grip is
2. The valve socket according to claim 1, wherein inner surfaces of the pair of projecting wall portions for operation are inclined so as to increase the inner diameter from the lower side toward the upper side. The protruding wall for operation is
3. The valve socket according to claim 1, wherein both end portions in the circumferential direction have radially outward projecting portions that project outward in the radially outward direction. The flange portion is
As seen from the valve mounting side in the axial direction of the socket base portion, a flange non-forming portion which is a region where the flange portion is not formed is provided in a region where the pair of fixing protrusions overlap. The valve socket according to claim 1, 2, or 3.

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