JP5120623B2 - Valve socket mounting structure - Google Patents

Description

  The present invention relates to a valve socket mounting structure for a socket mounting hole.

2. Description of the Related Art Conventionally, as a valve socket to which a valve is mounted, for example, the one described in Patent Document 1 is known. The valve socket is attached to a socket attachment hole formed in a panel, a housing or the like.
The valve socket has a socket body that is inserted into the socket mounting hole, and a flange portion and an engaging portion are provided on the outer peripheral surface of the socket body so as to protrude outward. The engaging part has a shape that allows the notch formed in the peripheral part of the socket mounting hole to be inserted, and is formed on the peripheral part of the socket mounting part on the surface of the engaging part facing the flange part. Protrusions that can be fitted into the recessed portions are provided.

And in order to attach a valve socket to a socket attachment hole, an engaging part is inserted in a notch part, and a socket main body is rotated to a predetermined position. Then, the peripheral part of the socket mounting part is sandwiched between the engaging part and the flange part, and the protrusion is fitted into the recess to prevent further rotation, and the valve socket is attached to the socket mounting part. Retained.
To remove the valve socket from the socket mounting hole, apply a turning force to the socket body to disengage the protrusion from the recess, rotate the socket body until the engagement portion reaches the position of the cutout portion, and remove the engagement portion. The socket body is pulled out from the socket mounting hole.
JP-A-10-112201

  By the way, in the above valve socket, the protrusion of the engaging portion keeps sliding in contact with the peripheral portion of the mounting hole during the pivoting operation of the socket body during mounting and removal, and therefore the valve socket is repeatedly attached and detached. As a result, the projection may gradually wear. When the protrusion is worn, a gap is generated between the protrusion and the recess, and the engagement force becomes insufficient, the socket body turns carelessly, the engagement portion reaches the position of the notch, and the valve socket is separated. This is a problem.

  The present invention has been completed based on the above situation, and provides a valve socket mounting structure capable of preventing inadvertent detachment from a socket mounting hole even after repeated mounting and dismounting. With the goal.

  The present invention relates to a socket body that is inserted into a socket mounting hole, a flange portion that protrudes from the outer peripheral surface of the socket body, and a notch that protrudes from the outer peripheral surface of the socket body and is formed at the peripheral edge portion of the socket mounting hole. A valve socket, wherein the socket body is attached to the socket attachment hole by rotating the socket body by inserting the engagement portion into the notch and rotating the socket body. The flange portion is provided with a hook-shaped hook portion that forms an engagement groove that is opened forward in the rotational direction of the socket body, and the hook portion is provided at a peripheral portion of the socket mounting hole. It is characterized in that it is elastically displaced in contact with the protruding engaging protrusion, and the engaging protrusion is inserted into the engaging groove.

  According to such a configuration, when the engaging portion is inserted into the notch portion and the socket body is rotated, the peripheral portion of the socket mounting hole is sandwiched between the engaging portion and the flange portion, and is prevented from being detached. Further, the hook portion elastically engages with the engaging protrusion to prevent the socket body from rotating, and the valve socket is held in the socket mounting hole in a mounted state. Therefore, since the hook body is used to prevent the socket body from rotating instead of the conventional prone to wear, it is possible to prevent inadvertent detachment from the socket mounting hole even if it is repeatedly attached and detached. it can.

  A ratchet projection may be provided in a portion of the peripheral edge of the socket mounting hole where the hook portion overlaps in a state where the engagement projection is inserted into the engagement groove. Thereby, in a state where the valve socket is mounted in the socket mounting hole, the ratchet protrusion is brought into contact with the hook portion, so that rattling of the valve socket can be reliably prevented.

  The socket body is inserted into the socket mounting hole in a substantially horizontal direction and mounted in a horizontal posture, and the hook portion is arranged on the upper side in a state where the socket body is mounted in the socket mounting hole. It is good also as what is provided in the position. As a result, the hook portion provided on the upper side of the socket main body is configured to be hooked on the engagement protrusion by the weight of the valve socket, so that the hook portion is engaged as compared with the case where the hook protrusion is engaged only by the elastic force of the hook portion. The resultant power increases. Therefore, the rotation of the socket body is reliably prevented, and careless detachment of the valve socket can be prevented.

  The inner end of the engagement groove may have a shape that follows the outer shape of the engagement protrusion. As a result, when the engaging protrusion reaches the inner end of the engaging groove, the hook portion is elastically restored to a natural state. Therefore, it is advantageous in terms of durability as compared with the case where the hook portion is kept elastically deformed.

  The engagement protrusion may have a columnar shape. Thereby, compared with the case where an engagement protrusion is prismatic shape, for example, it is hard to produce a hook when a hook part and an engagement protrusion engage, and it can prevent these abrasion reliably.

  The thickness dimension of the hook part may be smaller than the projecting dimension of the engaging protrusion. As a result, the hook portion can be prevented from getting over the engaging protrusion, so that the socket body can be reliably prevented from rotating, thereby preventing inadvertent detachment of the valve socket.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the valve socket which can prevent careless detachment | leave from a socket attachment hole can be provided even if it attaches and detaches repeatedly.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
In the present embodiment, the bulb socket 10 is to be fitted with a bulb B (light bulb). The valve socket 10 is detachable from the socket mounting hole 20 of the panel P. Hereinafter, in each component, the front side (left side in FIG. 1) of the valve socket 10 with respect to the socket mounting hole 20 is the front side, the rear side in the insertion direction is the rear side, and the upper side in FIG. explain.

  As shown in FIG. 2, the socket mounting hole 20 has a substantially circular shape as a whole, and penetrates the panel P in the front-rear direction. The socket mounting hole 20 has a shape in which four locations in the circumferential direction are expanded outward, and these four expanded portions are inserted through the engagement portion 13 of the valve socket 10 described later in the front-rear direction of the panel P. This corresponds to the possible cutout 20A. The four notches 20A are arranged at positions that divide the peripheral edge of the socket mounting hole 20 into four equal parts. Each of the cutouts 20A has a substantially rectangular shape that is long in the circumferential direction of the socket mounting hole 20, and one of them (the lower left cutout 20A in FIG. 2) has a longitudinal dimension that is the same as that of the other three cutouts 20A. The dimension is about twice that of the longitudinal dimension. Moreover, the edge (outer edge) extended in the circumferential direction among the periphery of each notch part 20A has comprised the substantially arc shape coaxial with the center axis | shaft of the socket attachment hole 20. As shown in FIG.

  Engaging protrusions 21 are provided on the peripheral edge of the socket mounting hole 20. The engaging protrusion 21 has a substantially cylindrical shape protruding rearward from the rear surface of the panel P, and the protruding dimension is larger than the thickness dimension of the panel P (see FIG. 1). A pair of engaging protrusions 21 are disposed above and below the socket mounting hole 20 at symmetrical positions with the socket mounting hole 20 in between. The engagement protrusion 21 is disposed in a portion between the notches 20A in the peripheral edge of the socket mounting hole 20, and is located outside the outer edge of the notches 20A.

  A ratchet projection 22 is provided on the peripheral edge of the socket mounting hole 20. As shown in FIG. 2, the ratchet protrusion 22 is provided above the upper engagement protrusion 21 and below the lower engagement protrusion 21 on the rear surface of the panel P, in other words, a hook portion 14A described later. It is provided in a portion arranged to overlap when engaged with the engaging protrusion 21. Each ratchet projection 22 has an elongated shape in the circumferential direction of the socket mounting hole 20, and its longitudinal dimension is the same as the diameter of the engagement projection 21.

The valve socket 10 is inserted into the socket mounting hole 20 in a substantially horizontal direction and mounted in a lateral orientation.
The valve socket 10 includes a synthetic resin socket body 11 that is inserted into the socket mounting hole 20. A substantially first half of the socket body 11 is a valve holding portion 11A for holding the valve B, and a substantially second half is a connector portion 11B into which a power supply side connector (not shown) can be fitted. Terminals 12 extending from the part 11A to the connector part 11B are held. When the valve B is held by the valve holding part 11A and the power supply side connector is fitted to the connector part 11B, the power supply and the valve B are electrically connected via the terminal 12. Note that the valve holding portion 11A and the connector portion 11B each have a substantially rectangular shape when viewed from the front-rear direction (see FIGS. 5 and 6).

  An intermediate portion 11 </ b> C (a boundary portion between the valve holding portion 11 </ b> A and the connector portion 11 </ b> B) in the front-rear direction of the socket body 11 is a portion that fits into the socket mounting hole 20. When the intermediate part 11C of the socket body 11 is viewed from the front-rear direction, the socket body 11A and the connector part 11B form a circular shape. The intermediate part 11C of the socket body 11 is provided with an engaging part 13 and a flange part 14 projecting outward from the outer peripheral surface thereof. The flange part 14 is arranged at the rear end of the intermediate part 11C, and the engaging part 13 is arranged at the front end. In addition, a dimension equivalent to the thickness dimension of the panel P is provided between each other.

  The engaging portions 13 are provided at a total of four locations on the socket body 11 in the vertical and horizontal directions. As shown in FIG. 5, the four engaging portions 13 are arranged at positions that divide the peripheral edge of the socket body 11 into four equal parts, and each has a substantially rectangular plate shape that can be inserted through the notch portion 20 </ b> A of the socket mounting hole 20. None, an edge (outer edge) extending in the circumferential direction of the peripheral edge of each engaging portion 13 has a substantially arc shape coaxial with the central axis of the socket body 11. One of the four engaging portions 13 (the right engaging portion 13 in FIG. 5) has a dimension in the longitudinal direction approximately twice that of the other three engaging portions 13. The small engagement portion 13 has the same size as the small cutout portion 20A, and the large engagement portion 13 has the same size as the large cutout portion 20A.

  The rear surface of each engaging portion 13 (the surface facing the flange portion 14) is a flat surface and is substantially parallel to the front surface of the flange portion 14. One end portion (the end portion on the front side in the rotational direction when the socket body 11 is attached) of both ends in the longitudinal direction of the rear surface of each engagement portion 13 is an inclined surface 13A with a corner portion cut off (FIG. 3). And FIG. 4). The inclined surface 13A has an inclination in a direction away from the flange portion 14 toward one end edge thereof (toward the rotation direction), and is not easily caught by the hole edge of the notch portion 20A of the socket mounting hole 20.

  The flange portion 14 is configured to protrude outward from the entire circumference of the socket body 11, and the outer shape thereof is a substantially circular shape that is slightly larger than the socket mounting hole 20 as a whole. The projecting dimension of the flange part 14 from the socket body 11 is larger than the notch dimension of the notch part 20A, and the part excluding the hook part 14A described later is engaged from the periphery of the socket mounting hole 20 excluding the notch part 20A. The dimension is approximately equal to the distance between the protrusions 21. When the socket body 11 is inserted into the socket mounting hole 20, the flange portion 14 closes the rear of the notch portion 20 </ b> A, and the portion excluding the hook portion 14 </ b> A is disposed inside the engagement protrusion 21.

  The flange portion 14 is provided with a hook portion 14 </ b> A that has a hook shape and extends in a cantilevered manner toward the front in the rotation direction when the socket body 11 is attached. The hook portion 14A can be elastically displaced outward. A pair of hook portions 14A are provided above and below the flange portion 14 (up and down in a state where the socket body 11 is attached to the socket attachment hole 20).

  The thickness dimension of the hook portion 14A (the dimension in the same direction as the thickness dimension of the panel P) is smaller than the projecting dimension of the engaging projection 21 and the hook portion 14A is engaged with the engaging projection 21. In the state, the protruding end portion of the engaging protrusion 21 protrudes rearward from the hook portion 14A (see FIG. 1).

  An engagement groove 15 is formed on the inner side of the hook portion 14 </ b> A and is opened forward in the rotational direction of the socket body 11. The open end 15 </ b> A of the engagement groove 15 has a width dimension equal to or slightly larger than the width dimension (diameter) of the engagement protrusion 21, and the rear end 15 </ b> B of the engagement groove 15 is the outer shape of the engagement protrusion 21. (Substantially equal to the outer shape of the engaging protrusion 21). The width dimension of the central portion 15C of the engagement groove 15 (the portion between the open end portion 15A and the back end portion 15B) is slightly smaller than the width dimension (diameter) of the engagement protrusion 21.

Next, attachment of the valve socket 10 of the present embodiment to the socket attachment hole 20 will be described.
First, the valve socket 10 is turned sideways, and the valve holding portion 11 </ b> A of the socket body 11 is inserted through the socket mounting hole 20. Next, when the socket main body 11 is viewed from the rear, the posture in which the large engaging portion 13 is arranged on the lower left oblique side (each engaging portion 13 of the socket main body 11 is opposed to each notch portion 20A of the socket mounting hole 20). The intermediate portion 11C of the socket body 11 is inserted into the socket mounting hole 20 by inserting each engaging portion 13 through each notch portion 20A. As a result, the front surface of the flange portion 14 comes into contact with the rear surface of the panel P (the rear surface of the peripheral edge portion of the socket mounting hole 20) almost at the same time as the engaging portion 13 passes through the socket mounting hole 20, and further insertion is restricted. Is done. At this time, the hook portion 14A is arranged on the upper left and the lower right when the socket body 11 is viewed from the rear (see FIG. 6).

  Next, the socket body 11 is rotated clockwise as viewed from the rear. Then, each engaging part 13 shifts in the circumferential direction from each notch part 20 </ b> A, and the peripheral part of the socket mounting hole 20 is sandwiched between each engaging part 13 and the flange part 14. Then, when the socket body 11 is rotated to a position where each engaging portion 13 is almost completely displaced from each notch portion 20A, the tip of each hook portion 14A is positioned outside (upper and lower) positions of each engaging protrusion 21. In other words, the engagement protrusion 21 is inserted into the open end 15 </ b> A of the engagement groove 15. At this time, each hook portion 14 </ b> A rides on each ratchet projection 22. When the socket body 11 is further rotated clockwise, the central portion 15C of the engagement groove 15 reaches the position of the engagement protrusion 21, and the hook portion 14A is moved outward (upward and downward) by contact with the engagement protrusion 21. It is elastically deformed downward. When the rear end portion 15B of the engagement groove 15 reaches the position of the engagement protrusion 21, the hook portion 14A is elastically restored. Thus, the hook portion 14 </ b> A engages with the engaging protrusion 21 to prevent the socket body 11 from rotating, and the valve socket 10 is held in the socket mounting hole 20 in the mounted state. In addition, when the hook portion 14A is elastically restored, an operator can obtain a moderation feeling when the valve socket 10 is attached to the socket attachment hole 20.

  According to the configuration of the present embodiment, the hook portion 14A is elastically displaced in contact with the engagement protrusion 21 only in the final stage of the rotation of the socket body 11 (specifically, the engagement protrusion 21 is engaged). Only during the passage through the central portion 15C of the joint groove 15), otherwise it is in a natural state. Here, in the conventional valve socket, the protrusion that prevents the socket body from rotating is attached to the socket throughout the rotation of the socket body (from the position where the engaging portion reaches the fitting position between the protrusion and the recess). Since the structure is pressed against the peripheral edge of the hole, it is easy to wear when the valve socket is repeatedly attached and detached, and there is a risk of inadvertent detachment from the socket mounting hole due to wear of the protrusion. However, according to the configuration of the present embodiment, since the socket body 11 is prevented from rotating using the hook portion 14A that does not cause such wear instead of the protrusion, the valve socket 10 is repeatedly attached and detached. Also, inadvertent detachment from the socket mounting hole 20 can be prevented.

  Further, a ratchet projection 22 is provided at a portion of the peripheral edge of the socket mounting hole 20 where the hook portion 14A overlaps when the engagement groove 15 and the engagement projection 21 are engaged. As a result, in a state where the valve socket 10 is attached to the attachment portion, the ratchet protrusion 22 is in contact with the hook portion 14A, so that rattling of the valve socket 10 can be reliably prevented. Further, since the ratchet projection 22 comes into contact with the hook portion 14A only at the final stage of the turning operation of the socket body 11, the ratchet projection 22 is worn even if it is repeatedly attached and detached. It is difficult and can prevent rattling of the valve socket 10 reliably.

  The socket body 11 is inserted into the socket mounting hole 20 in a substantially horizontal direction and mounted in a lateral orientation. The hook portion 14A is a socket in a state where the socket body 11 is mounted in the socket mounting hole 20. It is provided at a position arranged on the upper side of the main body 11. As a result, the hook portion 14A disposed on the upper side of the socket body 11 is hooked on the engagement protrusion 21 by the weight of the valve socket 10, so that only the elastic force of the hook portion 14A engages with the engagement protrusion 21. The engagement force between the hook portion 14 </ b> A and the engagement protrusion 21 is larger than that in the case where they are combined. Therefore, the engagement between the hook portion 14A and the engagement protrusion 21 is difficult to be disengaged, and the socket body 11 is reliably prevented from rotating, thereby preventing the valve socket 10 from being unintentionally detached.

  Further, since the rear end portion 15B of the engagement groove 15 has a shape along the outer shape of the engagement protrusion 21, when the engagement protrusion 21 reaches the rear end portion 15B of the engagement groove 15, the hook portion 14A. Returns to its natural state after elastic recovery. Therefore, it is advantageous in terms of durability as compared with the case where the hook portion 14A is kept elastically deformed in a state where the valve socket 10 is attached to the socket attachment hole 20.

  Further, since the engaging protrusion 21 has a columnar shape, the hook portion 14A and the engaging protrusion 21 are less likely to be caught compared to, for example, the case where the engaging protrusion 21 has a prismatic shape, and thus the valve socket 10. It is possible to prevent the hook portion 14A from being worn due to the attachment / detachment.

  Further, since the thickness dimension of the hook portion 14A is smaller than the projecting dimension of the engaging protrusion 21, even if a large rotational force acts on the socket body 11, the hook portion 14A causes the engaging protrusion 21 to move. You can prevent getting over. Therefore, the socket body 11 can be reliably prevented from rotating, and thus the careless detachment of the valve socket 10 can be prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

(1) In the above embodiment, two hook portions 14A are provided on the socket body 11, and two engagement protrusions 21 are provided on the peripheral edge portion of the socket mounting hole 20, but how many of these are provided. For example, the hook portion 14A and the engagement protrusion 21 may be provided one by one, or three or more.
(2) In the above-described embodiment, the socket body 11 is attached in a horizontal orientation. However, the socket body 11 is attached in any orientation (for example, a vertical orientation or an oblique orientation). The present invention can be applied.

(3) In the above embodiment, the rear end portion 15B of the engagement groove 15 has a shape that follows the outer shape of the engagement protrusion 21. However, the present invention is not limited to this. The shape may be narrower than the outer shape of the engaging protrusion, and the hook may be engaged with the engaging protrusion while being elastically deformed.
(4) In the above embodiment, the engagement protrusion 21 has a cylindrical shape, but is not limited thereto, and may be, for example, a rectangular column shape or an elliptical column shape.

Side sectional view showing the mounting state of the valve socket of this embodiment Rear view of socket mounting hole Side view of valve socket Top view of valve socket Front view of valve socket Rear view showing the valve socket attached Rear view showing valve socket mounting status

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Valve socket 11 ... Socket main body 13 ... Engagement part 14 ... Flange part 14A ... Hook part 15 ... Engagement groove 15B ... Back end part 20 ... Socket attachment hole 20A ... Notch part 21 ... Engagement protrusion part 22 ... Back Stop projection

Claims (6)

A socket body inserted into the socket mounting hole, a flange protruding from the outer peripheral surface of the socket main body, and a notch formed at the peripheral edge of the socket mounting hole while protruding from the outer peripheral surface of the socket main body A valve socket mounting structure in which the socket main body is mounted in the socket mounting hole by rotating the socket main body by inserting the engaging portion into the cutout portion. ,
The flange portion is provided with a hook-shaped hook portion that forms an engagement groove that is opened forward in the rotational direction of the socket body, and the hook portion projects from the peripheral edge portion of the socket mounting hole. A valve socket mounting structure in which the engaging protrusion is elastically displaced in contact with the mating protrusion, and the engaging protrusion is inserted into the engaging groove. The ratchet protrusion protrusion is provided in the part which the said hook part overlaps in the state in which the said engagement protrusion was inserted in the said engagement groove | channel among the peripheral parts of the said socket attachment hole. Item 2. The valve socket mounting structure according to Item 1. The socket body is inserted in the socket mounting hole in a substantially horizontal direction and attached in a lateral orientation,
3. The valve socket mounting structure according to claim 1, wherein the hook portion is provided at a position arranged on an upper side in a state where the socket body is mounted in the socket mounting hole. 4. . 4. The valve socket mounting structure according to claim 1, wherein a rear end portion of the engagement groove has a shape that follows an outer shape of the engagement protrusion. 5. The valve socket mounting structure according to any one of claims 1 to 4, wherein the engagement protrusion has a cylindrical shape. The valve socket mounting structure according to any one of claims 1 to 5, wherein a thickness dimension of the hook portion is smaller than a projecting dimension of the engaging protrusion.

Images