JP2023008672A - Pilot lamp - Google Patents

Abstract

To provide a pilot lamp including an LED as a light source that is made as thin as possible.SOLUTION: A male engagement part 23 provided on a side wall 22 of a globe 20 and a female engagement part 33b provided on a side frame 32 of a holder 30 are engaged with each other in a vertical direction. The male engagement part 23 has an inclined part 25 curved downward in an outward opening shape and a tip engagement part 26, and a straight line Q horizontally passing the engagement part between the tip engagement part 26 and female engagement claw 33b passes a center part P of an inclined part reverse surface 25a. A first seal ring 36 comes into contact with the vicinity of the center part P. The first seal ring 36 is on the straight line Q, and located above a straight line R passing a lowest part of the male engagement part 23 horizontally.SELECTED DRAWING: Figure 6

Description

The present invention relates to indicator lights for indicating the presence of disaster prevention equipment.
In the present application, the vertical direction of the indicator lamp and the globe and holder constituting the indicator lamp is based on the state shown in FIG. Further, when the indicator lamp is attached to the member to be attached, the side on which the globe is arranged is called the front, and the side on which the holder is arranged is called the rear. Furthermore, the surface on the front side is the front surface, and the opposite surface is the back surface. The front and back direction, front and back of the glove and holder shall conform to the indicator lights.

In recent years, indicator lamps have been made thinner by using LEDs as light sources. As such a device, there is one in which a globe as a cover is detachably attached to a holder to which an LED as a light source is attached by screwing (see Patent Document 1 as an example).
In addition, the format of fixing the globe by screwing it into the holder in this way will be referred to as a screwing method. On the other hand, according to the invention of the present application, the glove is fixed with one touch by pushing the glove into the holder and engaging it, and this is called a one-touch push-in type.

FIG. 23 is a schematic cross-sectional view of the indicator lamp of Patent Document 1 as Conventional Example 1, and an enlarged cross-section of the screw coupling portion is shown in the circled portion E-8, and the holder side is shown in the circled portion E-9. It is an enlarged view of the screw part.
The indicator light 100 is composed of a bottomed cylindrical globe 120 opened downward in the figure and a bottomed cylindrical holder 130 opened upward in the figure coupled face to face and surrounded by both members. A light source 150 consisting of an LED is accommodated in the internal space.

The globe 120 has a rounded top surface 121 that curves upward, and a peripheral wall 122 erected around the top surface.
The radius of the top surface 121 is large and flat.
The holder 130 has a peripheral wall-shaped side frame 132 erected around a circular bottom portion 131 , and a male screw 133 is formed on the outer peripheral surface of the side frame 132 .
The inner diameter of the peripheral wall 122 and the outer diameter of the side frame 132 are substantially equal, the peripheral wall 122 is fitted to the outside of the side frame 132, and the female thread 123 and the male thread 133 can be screwed together.

An LED 150 is provided in the central portion of the bottom portion 131 and its light is transmitted through the top surface 121 . However, since the side frame 132 and the peripheral wall 122 are superimposed on each other in most of the area of the side portion, the light hardly penetrates there. Therefore, the portion of the side surface of the indicator lamp 100 that is covered with the side frame 132 hardly contributes to side emission.

The height of the side surface of the indicator light 100 from the bottom surface of the bottom part 131 to the highest point of the top surface 121 is H, and the height from the upper end surface 134 of the side frame 132 to the highest point of the top surface 121, that is, the projection of the globe 120 Let a be the height, and b be the height from the bottom surface 135 of the side frame 132 to the upper end surface 134, that is, the height of the side frame.
In the side surface of the indicator lamp 100, a is a range in which side light is emitted, and b is a range in which side light is hardly emitted.

There is also a device in which the globe and holder are engaged and the top surface is flat (see Patent Document 2).
FIG. 24 is a schematic side view of the indicator lamp of Patent Document 2 as Conventional Example 2. As shown in FIG. It should be noted that the encircled part E-10 in the figure shows a schematic cross section for explaining the detailed dimensional structure at the peripheral wall height b. Further, H (total height), a (protrusion height of globe) and b (height of side frame of holder) are commonly used in each of the above conventional examples and each embodiment described later.
This indicator light 200 is formed by arranging a globe 220 and a holder 230 to face each other and integrating them by a rotary engagement instead of a screw connection, and is thinner than the conventional example 1. FIG.

The glove 220 is provided with a male hook 223 protruding outward from the lower end of the side wall 222 . The holder 230 is provided with a female hook 233 projecting inward from the upper end of the side frame 232 . The male hook 223 and the female hook 233 are engaged with each other in the vertical direction, and the first O-ring 236 is brought into close contact with the lower surface of the male hook 223. The first O-ring 236 pushes the male hook 223 upward, thereby engaging the female hook. 233.

JP 2015-56205 A Japanese Patent Application Laid-Open No. 2020-140013

By the way, in the conventional example 1 shown in FIG. 23, the connection is made by a screw type, so the height dimension of the connection portion becomes large. That is, the height b of the side frame 132 on the holder side shown in the circled part E-9 is the dimension c of the threaded portion provided with at least two screws 133 and the non-threaded portions such as incompletely threaded portions provided above and below. Consists of dimensions d and e consisting of threads. However, since this unthreaded portion is inevitably formed, the value of b becomes relatively large more than necessary.
The projection height a of the globe 120 and the height b of the side frame 132 satisfy a>b.

Therefore, if an attempt is made to keep the overall height H constant, the projection height a of the globe 120 cannot be set to a sufficiently large value. If this is the case, a sufficient size of the side emission area cannot be ensured, and the visibility of the indicator lamp from the side is reduced.
Therefore, the top surface 121 of the globe 120 is rounded, and a shoulder portion 124 is provided between the top surface 121 and the peripheral wall 122. Light transmission from the shoulder portion 124 to the apex of the top surface 121 increases the side light emitting area. forming

However, even if the top surface 121 is rounded in this way, the height b of the side frame 132 due to the screw connection is large. is reduced, the side emission area is reduced, and satisfactory side visibility cannot be obtained.
Therefore, even if the height b of the side frame 132 is made smaller and the top surface 121 is made flat, it is desired that the peripheral wall 122 alone secures a sufficient side light emitting area.

On the other hand, in Conventional Example 2 shown in FIG. 24, the screw connection is abolished and the male hook 223 and the female hook 233 are engaged. Even so, the projection height a of the globe 220 can be increased.
Therefore, the side wall 222 can have a sufficient side light emitting area, and the top surface 221 can be flattened.

In this example, the male hook 223 and the female hook 233 are displaced from each other in the circumferential direction in plan view, and the glove 220 is stacked on the holder 230, and then the glove 220 and the holder 230 are relatively rotated in the circumferential direction, and the male hook 223 is rotated. and the female hook 233 are vertically overlapped and engaged, and this coupling type is called a rotary type.

However, in this connection type, the male hook 223 is elastically pushed upward by the first O-ring 236 . Therefore, the height b of the side frame 232 is increased by the thickness of the first O-ring 236 . In addition, a second O-ring 238 that seals between the support ledge 231b that receives the first O-ring 236 and the surface of the mounting portion 245 (e.g., wall) against which the bottom surface 235 abuts is also located below the first O-ring 236. The thickness of the second O-ring 238 also increases the height b of the side frame 232 .

Therefore, it is required to reduce the value of the height b of the side frame 232 by the amount of the first O-ring 236 and the second O-ring 238, to further expand the side emission area, and to further reduce the overall thickness. be done.

Here, the height b of the side frame 232 will be described in practical concrete dimensions. As shown in the encircled portion E-10, the respective thicknesses of the female hook 233 and the male hook 223 are t1 and t2, and the thickness, that is, the diameter, of the first O-ring 236 and the second O-ring 238, which are common parts, is t1 and t2. t3, and the wall thickness of the support shelf 231b of these O-rings is t4.
Further, L is a straight line passing horizontally through the upper surface of the female hook 233, Q is a straight line passing horizontally through the engaging portion between the lower surface of the female hook 233 and the upper surface of the male hook 223, and Q is a straight line horizontally passing through the lower surface of the male hook 223. Let R. The distance between the straight lines L and Q is the thickness t1, and the distance between the straight lines Q and R is the thickness t2.
For convenience of design, t1, t2 and t4 are the same size, the first O-ring 236 and the second O-ring 238 are common parts on the market, and their diameter is t3.

For example, if t1, t2 and t4 are each 2 mm and t3 is 3 mm, the height b of the side frame 232 is 12 mm. At this time, when H is 30 mm, a becomes 18 mm. This is an example of practical dimensions and is the thinnest.
However, if the thickness of at least one of the first O-ring 236 and the second O-ring 238 can be further reduced, the height b can be further reduced by 3 to 6 mm, and the thickness can be reduced as much as possible. The present invention aims at realizing such thinning as possible.

In order to solve the above problems, the invention of claim 1 related to the indicator lamp of the present application comprises a globe (20) having a top surface (21) and a globe side wall (22) provided around it, a bottom (31) and its surroundings. a holder (30) having a holder side frame (32) provided on the outside of the glove side wall (22), the glove side wall (22) being fitted inside the holder side frame (32), A male engaging portion (23) bent inward and a female engaging portion (33) provided in the holder side frame (32) and bent inward are engaged in the vertical direction, and the male engaging portion ( 23) is provided with an elastic member (36) that presses the female engaging portion (33) from below so as to be in close contact with the female engaging portion (33),
The male engaging portion (23) has an inclined portion (25) that opens downward,
The elastic member (36) is arranged inside the inclined portion (25) and at a position higher than the lowest end portion of the inclined portion (25), and is arranged to move the inclined surface of the inclined portion (25) from the inside to the outside. It is characterized by pressing obliquely upward.

The invention according to claim 2 is characterized in that, in claim 1, the inclined portion (25) forms a curved surface that curves downward.

The invention according to claim 3 is characterized in that, in claim 1 or 2, the elastic member (36) is a seal member interposed between the globe (20) and the holder (30).

According to a fourth aspect of the present invention, in any one of the first to third aspects, the male engaging portion (23) is pushed toward the female engaging portion (33) so that the male engaging portion ( 23) or the female engaging portion (33) is elastically deformed to engage the male engaging portion (23) and the female engaging portion (33) in the vertical direction. do.

According to a fifth aspect of the invention, in the fourth aspect, the female engaging portion (33) is a slide hook that advances and retreats in a radial direction by being pressed by the male engaging portion (23),
The slide hook is provided on a part of the holder side frame (32), one end of which is connected to the holder side frame (32), and is supported by the other ends of a pair of curved connecting arms (33d). characterized by being supported. A bent shape means that the wire is bent into a shape such as a substantially U-shape that is easily elastically deformable.

The invention according to claim 6 is, in any one of claims 1 to 3, wherein the male engaging part (23) and the female engaging part (33) are connected to the glove (20) and the holder (30). are engaged in the vertical direction by relatively rotating the two.

The invention according to claim 7 is, in claim 3, the seal member interposed between the globe (20) and the holder (30) forms a first seal member,
The bottom portion (31) of the holder (30) is penetrated by a fastening member hole (39b) through which the fastening member (40) for attachment to the attached portion passes. 2 sealing members (48) are provided.

The invention of claim 8 is the bolt according to claim 7, wherein the fastening member (40) is a bolt having a square root portion (42), and the fastening member hole is a square hole (39b) into which the square root portion (42) is fitted. ) and
The globe (20) is provided with retaining means for retaining the head (41) of the bolt.

According to the first aspect of the invention, the elastic member (36) is positioned inside the inclined portion (25) that opens outward downward from the male engaging portion (23) and at the maximum of the inclined portion (25). Since it is arranged at a position higher than the lower end portion, the inclined surface of the inclined portion (25) is pressed from the inside to the outside obliquely upward.
Therefore, since it is not arranged below the male engaging portion (23), the height (b) of the holder side frame (32) can be reduced as much as possible by the elastic member.
Moreover, since the globe side wall (22) of the indicator lamp (10) can be expanded in the height direction to ensure a sufficiently large side emission area, the visibility from the side is improved, and the top surface (22) of the globe (20) 21) can be flattened to make the whole as thin as possible.
In addition, the glove side wall (22) is elastically urged radially outward while maintaining the elasticity of pushing up the male engaging portion (23) obliquely upward to bring it into close contact with the female engaging portion (33). (20) can be centered. The globe (20) can be centered, and the sealing performance of the entire globe can be improved.

According to the second aspect of the invention, since the sloped portion (25) is formed into a curved surface that curves downward, when the male engaging portion (23) is pushed in to press the elastic member (36), the sloped portion (25) ) is in surface contact with the elastic member (36) on the curved surface. Therefore, the male engaging portion (23) can be pushed in relatively lightly.
Also, the reaction force of the elastic member (36) is directed outward and obliquely upward, making it easier to direct it toward the engaging portion between the male engaging portion (23) and the female engaging portion (33). Moreover, it is possible to improve the balance between the force for bringing the male engaging portion (23) and the female engaging portion (33) into close contact with each other and the force for centering the glove (20).

According to the third aspect of the invention, the elastic member (36) is a seal member interposed between the globe (20) and the holder (30). By utilizing the member used for the sealing of the above for close contact and centering of the engaging portion, it is possible to make effective use of multi-functionality.

According to the fourth aspect of the invention, either the male engaging portion (23) or the female engaging portion (33) can be engaged by pushing the male engaging portion (23) toward the female engaging portion (33). is elastically deformed so that the male engaging portion (23) and the female engaging portion (33) are engaged in the vertical direction, so one-touch push-in type engagement is possible, enabling easy and quick mounting. become.

According to the fifth aspect of the present invention, the female engaging portion (33) is a slide hook that advances and retreats in the radial direction when pressed by the male engaging portion (23), so it can be attached easily and quickly by a one-touch push-in type.
Moreover, the slide hook is provided on a part of the holder side frame (32), one end of which is connected to the holder side frame (32), and supported by the other ends of a pair of curved connecting arms (33d). Therefore, even if the holder (30) is made of a relatively hard and fragile resin material, a portion of the holder (30) is elastically deformed so that it can be moved back and forth with a sufficient stroke.

According to the sixth aspect of the invention, the male engaging portion (23) and the female engaging portion (33) are engaged in the vertical direction by relatively rotating the globe (20) and the holder (30). , so that they can be engaged in a rotational manner. Such a rotary type can simplify the engaging structure compared to the one-touch push-in type, and can be expected to reduce the height (b) of the holder side frame (32) as much as possible in the same manner as the one-touch push-in type. .

According to the seventh aspect of the invention, the sealing member interposed between the globe (20) and the holder (30) serves as the first sealing member,
A fastening member hole (39b) for inserting a fastening member (40) for attachment to a mounted portion passes through the bottom (31) of the holder (30), and a second sealing member sealing this fastening member hole (39b). A seal member (48) was provided. Thus, the first and second sealing members allow complete waterproofing of the complete assembly alone. Moreover, since there is no need to provide another seal member similar to the first seal between the bottom portion (31) of the holder (30) and the mounting portion, the height (b) of the holder side frame (32) can be reduced. can be further reduced.

According to the eighth aspect of the invention, the fastening member (40) according to the seventh aspect is a bolt having a square root portion (42), and the fastening member hole is a square hole (39b) into which the square root portion (42) is fitted. Therefore, the bolt (40) can be fixed to the bottom (31) of the holder (30).
In addition, since the globe (20) is provided with retaining means for retaining the head (41) of the bolt, the bolt (40) is retained during fastening.
Therefore, the globe (20) is attached to the holder (30) and the indicator light assembled is placed on the front surface of the mounting portion, and the bolt (40) is passed through the mounting portion and fastened with a nut on the back surface. , can be attached to the attached portion.
At this time, by tightening the nut to the tip of the threaded portion, a force in the direction of rotation is applied to the bolt (40), and the bolt (40) is pressed toward the head (41). However, the head (41) of the bolt (40) is prevented from coming off, and the square root (42) is fitted into the square hole (39b) to prevent rotation. The nut can be tightened from the back side without the need for
For this reason, only one worker can perform the mounting work on the back surface of the mounted part, and the manpower for the mounting work can be reduced and the work efficiency can be improved.

FIG. 1 is a perspective view showing the indicator lamp according to the first embodiment (FIGS. 1 to 10) from diagonally above; A perspective view showing the bottom side from diagonally below Side view of indicator light Top view of indicator light (plan view) Perspective view of indicator light assembly Sectional view along line 6-6 in FIG. Enlarged perspective view of the slide engaging portion and its vicinity FIG. 7, partially cutaway view Illustration of engagement The figure which shows the variation of a slide engagement part Side view (half-sectional view) of the second embodiment (FIGS. 11 and 12) Sectional view showing the dimensional configuration of the height b of the side frame Planar perspective view of the third embodiment (FIGS. 13-18) Side view of indicator light Perspective view of indicator light assembly Right half side sectional view of indicator light Top view of globe and holder Explanatory diagram of rotatingly engaging the glove with the holder Right half sectional view of the indicator lamp according to the fourth embodiment The figure which shows the right half side sectional view etc. of the indicator lamp which concerns on 5th Example. Right half sectional view of the indicator lamp according to the sixth embodiment Right half sectional view of the indicator lamp according to the seventh embodiment Cross-sectional view of conventional example 1 Side view of conventional example 2

An embodiment of the indicator lamp will be described below with reference to the drawings. First, the first embodiment will be described with reference to FIGS. 1 to 10. FIG. The indicator light of the first embodiment is a thin one for use as a disaster prevention device, and is an indoor type that does not have waterproofness as a finished assembled product itself.
1 is a perspective view of the indicator lamp 10 obliquely seen from above, FIG. 2 is a perspective view of the indicator lamp 10 obliquely seen from below, and FIG. 3 is a side view thereof. FIG. 4 shows a top view (plan view) of the indicator lamp 10 with a portion of the globe cut away. 5 is an assembly perspective view of each component, and FIG. 6 is a cross-sectional view taken along line 6-6 in FIG.

With reference to these figures, first, an overview of the indicator lamp 10 will be described with a focus on FIG.
The indicator light 10 includes a flat, bottomed cylindrical globe 20 that opens downward and a holder 30 that opens upward and has a flat, bottomed cylinder shape. , are integrated by one-touch engagement. This connecting structure is called a one-touch push-in type.

The globe 20 is made of a translucent red and relatively hard resin (for example, polycarbonate resin), and has a top portion 21 forming a circular flat surface in plan view, and a globe side wall 22 forming an upright and hanging peripheral wall around the top portion 21 . have together. Various known materials can be used for the resin forming the globe 20 .

The globe side wall 22 is linearly inclined so as to gradually increase in diameter downward.
The lower end portion of the globe side wall 22 forms an outer flange-like male locking portion 23 that bends radially outward and is gently inclined. The male locking portion 23 is an example of the male engaging portion in the present invention, and is formed substantially all around the lower end portion of the globe side wall 22 .

As shown in FIG. 6, the male locking portion 23 includes an inclined portion 25 extending downward from the lower end of the glove side wall 22 in a widening shape, and a distal end engaging portion extending radially outward from the lower end thereof substantially horizontally. A joint 26 is provided.
The inclined portion 25 has a downwardly convex curved cross section, and is inclined outward from the lower end of the globe side wall 22 further downward. The lower surface of the inclined portion 25 forms a curved inclined portion lower surface 25a.

The tip engagement portion 26 is a portion that engages with a slide hook that is an example of a female engagement portion, which will be described later.
An upper surface 26a of the tip engaging portion 26 forms a substantially horizontal engaging surface. Further, the tip surface forms a guide surface 26b that is inclined upward.

The angle of inclination of the glove side wall 22 and the male locking portion 23 is the angle of the inclined surface with respect to the horizontal plane, and the smaller the angle, the gentler the inclination.
Also, as shown in the figure, when the cross section of the inclined portion 25 is curved, the angle of inclination is determined by The angle formed by the line segment connecting the
The inclination angle of the inclined portion 25 is much smaller than the inclination angle of the globe side wall 22 .

The holder 30 is made of a red-transparent, relatively hard resin (for example, polycarbonate resin), and has a flat, substantially cylindrical shape with a bottom. Various known materials can be used for the resin forming the holder 30 .
The holder 30 has a circular bottom portion 31 in plan view and a holder side frame 32 which is a peripheral wall erected around the bottom portion 31 . The outer diameter of the portion 23 is substantially the same, and the male locking portion 23 can be fitted inside the holder side frame 32 .

The holder side frame 32 is provided with a plurality of slide hooks 33 (three at intervals of 120° in this example) which are movable in the radial direction at equal intervals in the circumferential direction.
A female engaging claw 33b formed at the upper end of the slide hook 33 and protruding radially inward overlaps with the male engaging portion 23, thereby engaging the male engaging portion 23 with the slide hook 33 in the vertical direction. (Fig. 6). In addition, the upper surface of the female engaging claw 33b

The inner peripheral surface of the holder side frame 32 is formed with one matching protrusion 34 protruding inward. When the glove 20 is attached to the holder 30, the aligning protrusion 34 engages with the aligning groove 24 formed in the outer peripheral portion of the male locking portion 23, thereby positioning the globe 20 with respect to the holder 30. ing.

At the outer peripheral portion of the bottom portion 31 and the inner side of the holder side frame 32, a first ring groove 35 is opened upward and is formed in a ring shape around the entire circumference.
The first ring groove 35 has a relatively wide groove width, and the first O-ring 36 (corresponding to the first seal of the present invention) and the male locking portion 23 are fitted therein.

The first O-ring 36 is a well-known elastic sealing member having a circular cross section and seals between the globe 20 and the holder 30 . Note that the cross-sectional shape is not limited to a circle, and various shapes such as an ellipse are possible.
Also, since the first O-ring 36 has moderate elasticity, it is pressed when fitting the glove 20 to the holder 30, and the reaction force pushes the male locking portion 23 to the female engaging claw 33b of the slide hook 33. Acts like a push.

In addition, the first O-ring 36 is arranged at an inner peripheral position within the first ring groove 35 (FIG. 6), and , and a portion of the lower surface 25a of the inclined portion in the radial direction thereof in contact with the curved surface (FIG. 6).
Specifically, when the male locking portion 23 and the female engaging claw 33b are engaged with each other, the first O-ring 36 is positioned on the lower surface 33e of the female engaging claw 33b (or the upper surface 26a of the tip engaging portion 26). ), and as shown in FIG. . Symbol L is a straight line passing horizontally through the upper surface of the female engaging claw 33b.

In other words, the first O-ring 36 is radially inwardly displaced from the engaging position where the tip engaging portion 26 of the male locking portion 23 and the female engaging claw 33b overlap each other. Also, the male locking portion 23 is curved and inclined, and its lowermost portion extends downward beyond the first O-ring 36 .
Let R be a straight line passing through the lowermost portion of the male locking portion 23 in the horizontal direction. In this example, the lowest portion of the first O-ring 36 is positioned on the lowest portion of the male locking portion 23, that is, on the straight line R.
The lowermost portion of the first O-ring 36 is positioned on or above the straight line R, and this state is expressed as the first O-ring 36 positioned above the straight line R.

Therefore, the first O-ring 36 is arranged radially inward of the male locking portion 23 at substantially the same height as the engagement position between the male locking portion 23 and the female engaging claw 33b (Fig. 6). Moreover, it is located above the lowermost portion of the male locking portion 23 .
Therefore, compared to the case where the first O-ring 36 is vertically arranged under the male locking portion 23 (conventional example 2 in FIG. 24), the holder side frame 32 is increased by at least the thickness of the first O-ring 36 . can be lowered.

A second ring groove 37 is also formed on the bottom surface 31a side of the bottom portion 31, and a second O-ring 38 (corresponding to the second seal of the present invention) is fitted therein. The second O-ring 38 is a common component having the same size and shape as the first O-ring 36 .
The first O-ring 36 and the second O-ring 38 are arranged so as to overlap in the vertical direction.
However, the width of the second ring groove 37 is narrower than that of the first ring groove 35 because it only fits the second O-ring 38 . The second ring groove 37 is opened downward, and the second O-ring 38 partially protrudes downward from the bottom surface 31a, has an interference, and forms a sealing portion.

A total of four bosses 39 for bolt attachment are provided at intervals of 90° in the circumferential direction at a portion adjacent to the inner side of the first ring groove 35 on the outer peripheral portion of the bottom portion 31 . A bolt 40 is provided on each bolt mounting boss 39 . The bolt 40 is fastened to a mounting portion 45 (FIG. 6), which will be described later.
The bolt 40 has a low head 41 . When the head 41 is accommodated in the head accommodating recess 39a provided in the bolt mounting boss 39, the head is flush with the upper surface 39c of the bolt mounting boss 39 (FIG. 6). .

The bolt 40 of this example is a square root round head bolt. Since the bolt 40 has a low head, the height of the boss 39 is lowered to prevent rotation during fastening, the details of which will be described later. However, the bolt 40 is not limited to the square root round head bolt, and various bolts can be used.

A rib 27 for pressing the head 41 of the bolt 40 is integrally provided inside the globe 20 (FIGS. 3 and 6). The ribs 27 are radially provided so as to protrude radially inward from the inner peripheral surface of the globe side wall 22 in plan view (FIG. 4) so as not to block the light from the LEDs 50 .
The rib 27 is an example of a bolt holding member, and corresponds to the retaining means in the present invention. However, the bolt pressing member may have a shape other than a rib (for example, a boss projecting from the glove side), and may be arranged randomly other than radially.

The upper end of the cylindrical portion 31c is opened in the central portion of the bottom portion 31 . The cylindrical portion 31c is a cylindrical portion that is provided integrally with the bottom portion 31 and extends downward (FIG. 2).
A substrate 51 having an LED 50 serving as a light source is attached to the surface of the bottom portion 31 with a one-touch operation by a substrate hook 52 (FIG. 4). The board hook 52 is integrally formed so as to protrude from the surface side of the bottom portion 31 .

The substrate 51 has an appropriate shape such as a square, and its size is relatively free as long as it is inside the first ring groove 35 .
Moreover, the number and arrangement of the LEDs 50 are arbitrary, and in this example, four LEDs 50 are arranged on the periphery of the substrate 51 at regular intervals.

Next, assembly of the indicator lamp 10 will be described with reference to FIG.
First, the substrate 51 , the first O-ring 36 , the bolt 40 and the second O-ring 38 (possibly later) are attached to the bottom portion 31 .
Subsequently, the glove 20 is placed on the holder 30, and the glove 20 is positioned on the holder 30 by aligning the matching grooves 24 with the matching projections 34. Then, the male locking portion 23 is inserted into the first ring groove 35 and downwardly. push into.

Then, the male locking portion 23 retracts the slide hook 33 radially outward and pushes it open. Then, when the tip of the male locking portion 23 is pushed downward along the straight line Q (FIG. 6), the slide hook 33 is restored and moves radially inward to return to the initial position, and the female engaging claw 33b engages the male. It overlaps on the front end engaging portion 26 of the portion 23 and engages in the vertical direction.
As a result, the glove 20 is integrated with the holder 30 with one touch to form an assembly.

Moreover, since the first O-ring 36 is pressed by the lower surface 25a of the inclined portion forming a curved surface, the reaction force is directed toward the engaging portion between the female engaging claw 33b obliquely upward and the tip engaging portion 26, The engaging portion 26 is brought into close contact with the female engaging claw 33b. Moreover, at the same time, the globe 20 is centered by the horizontal component of this reaction force (details will be described later).
In addition, it can be installed easily and quickly because it can be installed with a one-touch push-in type.

FIG. 6 shows a state in which the glove 20 is engaged with the holder 30 by one-touch push-in. As shown in this figure, the height H of the indicator lamp 10 is the height b from the bottom surface 31a of the holder side frame 32 (the upper surface of the mounting portion 45) and the height b from the upper end of the holder side frame 32 to the top portion 21 of the globe 20. It is the sum of the side height a of the globe 20, which is the dimension up to.

6, the height b indicates the height of the slide hook 33. As shown in FIG. However, since the height of the slide hook 33 is the same as the height of the holder side frame 32, the height of the holder side frame 32 including the height of the slide hook 33 is used in the following description.

Here, the height b of the holder side frame 32 is such that the first O-ring 36 is displaced radially inward from the lower end of the male locking portion 23 and positioned above the lowermost straight line R, as described above. In addition, it is lower by at least the thickness of the first O-ring 36 as compared with the conventional example 2 (FIG. 24).
The side surface height a of the glove 20 and the height b of the holder side frame 32 have a relationship of a>b, and a is larger than b.

Therefore, if the height H of the indicator lamp 10 is the same, the side surface height a of the globe 20 can be increased by the amount corresponding to the decrease in the height b of the holder side frame 32 .
As a result, even if the globe side wall 22 is made flat, the side light emitting area of the globe side wall 22 can be made sufficiently large, and brightness superior to the conventional one can be ensured.

If the height H of the indicator lamp 10 does not have to be the same as the conventional one, the side surface height a of the globe 20 is made the same as the conventional one. The height H of the indicator light 10 can be made lower by that amount, and the further thinning of the indicator light 10 can be realized.

Next, each part will be described in more detail. First, the structure of the slide hook 33 will be described.
FIG. 7 is a perspective view showing a portion of the slide hook 33, and FIG. 8 is a partially broken view thereof. An enlarged plan view shape is also shown in the circled portion E-1 in FIG.

The slide hook 33 is integrally formed with the holder 30 by the upper and lower molds for molding the holder 30, and is continuously formed as a part of the holder side frame 32. As shown in FIG. A hole 33 a provided in the outer peripheral portion of the bottom portion 31 below the first ring groove 35 is a die-cutting hole at this time, and communicates with the first ring groove 35 .

The slide hook 33 has a substantially inverted L-shaped cross section (see FIG. 6), and has a female claw 33b projecting radially inward from the upper end and a main body 33c extending vertically at the same height as the holder side frame 32. and
As also shown in the circled portion E-1 in FIG. 4, a connecting arm 33d that connects the main body portion 33c and the boss portion 32a of the holder side frame 32 is provided. The connecting arms 33d are provided on the left and right sides of the body portion 33c, and support the female claw 33b and the body portion 33c between the left and right boss portions 32a.

The amount of projection of the female engaging claw 33b radially inward is such that it overlaps the tip end engaging portion 26 of the male engaging portion 23 and engages reliably and maintains this engaged state.
The inner surface of the main body portion 33c is positioned so as to be radially outwardly recessed so as to have a predetermined distance from the distal end of the male locking portion 23 . The female engaging claw 33b and the main body portion 33c have a predetermined rigidity and are relatively thick so that they can be securely engaged with the male engaging portion 23 without being damaged.

The connecting arm 33 d has a U-shape that opens radially outward in a plan view, and is thinner than other portions of the holder-side frame 32 .
Due to this thin wall and U-shaped curved shape, although it is made of a relatively hard material and is difficult to elastically deform, a part thereof can be elastically deformed and can be made difficult to break.

Moreover, the connecting arm 33d has a U-shaped groove extending in the vertical direction, the height of which is the same as the height b of the holder side frame 32, and the total length of the main body 33c in the vertical direction and the female engaging claw 33b. is continuous with As a result, the connecting arm 33d is elastically deformed so as to expand and contract the width of the U-shaped groove, and this elastic deformation guides the female engaging claw 33b and the main body portion 33c so as to move in the radial direction.
Therefore, part of the holder side frame 32 itself serves as a slide hook 33 that can move in the radial direction.

In addition, a sufficiently large forward/backward stroke in the radial direction that allows the female engaging claw 33b to engage and disengage with the male engaging portion 23 can be realized.
Furthermore, since the connecting arm 33d has the same height as the holder side frame 32, although it is thin enough to allow elastic deformation, it does not provide the vertical rigidity required when the slide hook 33 and the male locking portion 23 are engaged. I have secured.

Next, the male locking portion 23 and the first O-ring 36 will be described mainly with reference to FIGS. 6, 8 and 9. FIG. FIGS. 9A to 9C are partially enlarged cross-sectional views for explaining chronological changes when the male locking portion 23 is engaged with the slide hook 33. FIG.
FIG. 9A shows the time when the slide hook 33 starts to spread. B shows the state in which the male engaging portion 23 is pushed downward from the female engaging claw 33b and the push-and-spread is completed. C shows the state in which the female engaging claw 33b is restored and engaged with the tip engaging portion 26. FIG. D is a diagram showing the reaction force of the first O-ring 36 in the engaged state of C. FIG. Also, a preferred positional relationship among the male locking portion 23, the first O-ring 36 and the female engaging claw 33b is schematically shown.

First, referring to FIG. 9, the process of engaging the glove 20 with the holder 30 will be described. As shown in FIG. 9A, when the male locking portion 23 is inserted into the first ring groove 35 and pushed downward (in the direction indicated by the arrow f), the guide surface 26b of the distal end engaging portion 26 of the male locking portion 23 is displaced. contacts the female engaging claw 33b and pushes it radially outward.
As a result, the connecting arm 33d is elastically deformed to retreat the female engaging claw 33b and the body portion 33c radially outward (in the direction of arrow g).

At this time, the tip end surface of the tip engaging portion 26 of the male locking portion 23 forms a guide slope 26b whose upper side is inclined radially outward. It abuts on the tip of the matching claw 33b and pushes it radially outward. As a result, the slide hook 33 is moved backward and spread radially outward.
In addition, the recoil resilience is generated in the connecting arm 33d due to the retreat of the female engaging claw 33b and the body portion 33c. Due to this rebound resilience, the connecting arm 33d elastically urges the female engaging claw 33b and the body portion 33c to move toward the initial position.

At the stage shown in FIG. 9B, the guide surface 26b is out of contact with the female engaging claw 33b, and the force applied to the female engaging claw 33b disappears.
Therefore, the female engaging claw 33b and the main body portion 33c move radially inward (in the direction of arrow h) due to the rebound resilience of the connecting arm 33d and return to the initial position, and the female engaging claw 33b becomes the male locking portion. 23 is engaged on the tip engaging portion 26, and the state of C is reached.

As described above, the slide hook 33 is an engaging member that can be pushed outward in the radial direction to move, and that is elastically biased to return to the initial position.
Further, the slide hook 33 is a member that elastically advances and retreats in the radial direction with a large stroke by supporting the female engaging claw 33b and the body portion 33c by the left and right connecting arms 33d forming a substantially U shape. is.

Also, as shown in FIGS. 9C and 9D, when the male locking portion 23 is engaged with the female engaging claw 33b, the first O-ring 36 is on the straight line Q and extends toward the lower surface of the inclined portion lower surface 25a. The male engaging portion 23 and the female engaging claw 33b are brought into close contact with each other by pressing the inclined portion lower surface 25a obliquely upward due to the restoring elasticity.

In this state, the first O-ring 36 is located radially inside the engagement portion between the male locking portion 23 and the female engaging claw 33b, ) is as low as or lower than the lower portion of the first O-ring 36 . In this example, the straight line R overlaps the bottom surface of the first ring groove 35 . Therefore, the first O-ring 36 is positioned above the lowest portion of the male locking portion 23 .

Therefore, the height of the holder side frame 32 can be reduced by at least the thickness of the first O-ring 36 as compared with the case where the first O-ring 36 is vertically arranged under the male locking portion 23 .
As a result, if the total height H is the same, the projecting height a of the globe side wall 22 can be increased to enlarge the area of the globe side wall 22 and to sufficiently increase the side transmitted light area.
Further, when the total height H can be reduced, the projection height a of the globe side wall 22 remains unchanged, and the required side light emitting area can be secured, and the indicator lamp 10 can be made as thin as possible.

An example of specific dimensions is shown in C of FIG. Let t1 and t2 be the respective thicknesses of the female engaging claw 33b and the distal end engaging portion 26 of the male locking portion 23, and t3 be the thickness, that is, the diameter, of the first O-ring 36 and the second O-ring 38, which are common parts. , the wall thickness of the support shelf 31b for these O-rings is t4.
Note that the symbols of t1 to t4 and straight lines L, Q, and R are used in common with FIG. 6 (the same applies to other embodiments).

In this example, t1, t2 and t4 are each 2 mm, and t3 is 3 mm.
Therefore, the height b is 9 mm. Compared to the lowest height b of Conventional Example 2 (FIG. 24), which is 12 mm, this is reduced by the thickness of the first O-ring 36, realizing a value as small as possible. there is

Next, behavior of the first O-ring 36 will be described. The first O-ring 36 is provided at a position where the upper end overlaps the straight line Q indicating the height of the lower surface 33e of the female engaging claw 33b (D in FIG. 9).
Then, as shown in FIG. 9A, the male engaging portion 23 is pushed into the first ring groove 35, and the female engaging claw 33b is expanded and moved downward. The inclined portion lower surface 25a of the stop portion 23 contacts the first O-ring 36 with a curved surface.

When the inclined portion lower surface 25a is further pushed downward, the first O-ring 36 is pressed, allowing the inclined portion lower surface 25a to move downward, and the tip engaging portion 26 of the male locking portion 23 pushes the female engaging claw 33b. It is expanded and accommodated in the first ring groove 35 .

At this time, as shown in D of FIG. has an angle and contacts on a curved surface, the male locking portion 23 can be pushed in with a relatively light force.
Although the contact angle changes due to the pressing, the direction of the reaction force F is always directed toward the engagement position between the tip end engaging portion 26 and the female engaging claw 33b.

FIG. 9D is a schematic diagram of a state in which the first O-ring 36 is in close contact with the most preferable position of the lower surface 25a of the inclined portion. As shown in this figure, when the male locking portion 23 is engaged with the slide hook 33, the straight line Q indicating the height of the lower surface 33e of the female engaging claw 33b (or the upper surface 26a of the tip engaging portion 26) is , and the substantially central portion of the male locking portion 23 .

Approximately the center portion of the male locking portion 23 means that the male locking portion 23 is curved in a rounded shape in the illustrated cross section and extends with an inclination such that the tip side is downward. middle part.
Further, in this example, the straight line R passing through the bottom of the male locking portion 23 coincides with the upper surface of the support shelf 31b that receives the first O-ring 36, and the first O-ring 36 is positioned above the straight line R. will do. The upper surface of the support shelf 31b forms the bottom of the first ring groove 35. As shown in FIG.

A first O-ring 36 is in close contact with the central portion P of the lower surface 25a of the inclined portion (the central portion in the longitudinal direction of the lower surface 25a of the inclined portion in the illustrated cross section).
The tangent line T of the inclined portion lower surface 25a passing through the central portion P forms an angle of approximately 45° with the horizontal line (or vertical line). In addition, the center of curvature of the inclined portion lower surface 25a is on the normal line of the tangent line T passing through the central portion P, and the point is located at 45° from the center of curvature to the horizontal or vertical direction.
In this state, the first O-ring 36 is pressed by the male locking portion 23 to generate a reaction force F, which pushes the inclined portion lower surface 25a obliquely upward.

Due to this reaction force F, a vertical component force F1 strongly presses the tip of the male locking portion 23 against the lower surface 33e of the female engaging claw 33b to reliably maintain the engagement, Improve sealing performance.
At the same time, the horizontal force component F2 pushes the globe 20 radially, thereby centering the globe 20 .

In addition, the position P where the first O-ring 36 is in close contact with the lower surface 25a of the inclined portion controls the close contact between the engaging portion of the male locking portion 23 and the slide hook 33 and the distribution of the forces F1 and F2 required for centering the glove 20. This is the most well-balanced position, and the most preferable position where the first O-ring 36 is in close contact.
For such balance, the contact point of the first O-ring 36 with the inclined portion lower surface 25a must be near the central portion P of the inclined portion lower surface 25a.

Moreover, it is important that the first O-ring 36 is on the straight line Q, and if it deviates above or below the straight line Q, such balance will be lost.
The first O-ring 36 is located above the straight line R passing through the lowermost part of the inclined portion lower surface 25a. As a result, while realizing the effect of pushing up the male locking portion 23 by the first O-ring 36, the effect of the first O-ring 36 on the height b of the holder side frame 32 is eliminated, and the height b is reduced as much as possible. can be lowered.

Moreover, although the first O-ring 36 achieves the functions of close contact of the engaging portion and centering of the glove 20, the influence of thickness can be eliminated.
Note that the inclined portion 25 of the male locking portion 23 may be linear instead of rounded. This is indicated by phantom lines in FIG. Also in this case, the height b of the holder side frame 32 can be made as low as possible by bringing the first O-ring 36 into close contact above the lowermost portion of the lower surface of the inclined portion.

Next, the attachment of the indicator lamp 10 to the attached portion 45 will be described.
As shown in FIGS. 5 and 6, bolt 40 uses a square root round head bolt. That is, as shown in an enlarged view of the circled portion E-3 in FIG. 5, a round and low head portion 41, a square root portion 42 formed following this lower portion, and a screw portion following this. 43.

The head 41 is not formed with + or - tool grooves for fitting a tool such as a screwdriver, and is accommodated in the head accommodation recess 39a of the boss 39 for bolt attachment.
This head 41 is lower than the head of a general bolt that is rotated by a tool such as a screwdriver, so that the boss 39 that accommodates it can be lowered and is formed on the surface side of the bottom 31 of the holder 30. As a result, the light emitting area on the side surface of the globe 20 can be widened.

6, the horizontal line S passing through the top surface 39c of the boss 39 passes through the top of the head 41 of the bolt 40, and the top surface 39c of the boss 39 and the head of the bolt 40 are aligned. The portion 41 is substantially flush. Also, the substrate 51 and the top surface 39c of the boss 39 are substantially flush with each other. Therefore, of the light emitted from the LEDs 50 provided on the substrate 51 , substantially horizontal light can also pass through the globe side wall 22 without being blocked by the head 41 of the bolt 40 and the boss 39 . As a result, the side emission area can be further expanded. Incidentally, the straight line S has almost the same height as the straight line Q.

The square root portion 42 is fitted into a square hole 39b (see FIG. 8) continuously formed below the head accommodating recess 39a of the boss 39 for bolt attachment. As a result, the bolt 40 is prevented from rotating.
As shown in FIG. 6, the head 41 in the head housing recess 39a is retained by ribs 27. As shown in FIG. A lower end 27a of the rib 27 is positioned above the head 41 with a predetermined minute gap.
The lower end 27 a of the rib 27 is formed with a curved concave portion that is concave upward corresponding to the curved surface of the head portion 41 . However, it may be horizontal. In addition, in this example, a part of the lower end 27a enters into the head accommodation recess 39a.

In this way, the bolt 40 is passed through the bolt mounting boss 39, and the globe 20 is attached to the holder 30 with the head 41 inserted into the head housing recess 39a. , each rib 27 overlies head 41 with lower end 27a securely in head-receiving recess 39a.

As a result, when the indicator lamp 10 is assembled, the bolt 40 does not slip out of the bolt mounting boss 39 .
In addition, if the head 41 is in an abnormal mounting state, such as when the head 41 protrudes from the bolt mounting boss 39, the rib 27 and the head 41 will come into contact with each other during the assembly stage, and the mounting of the globe 20 will be prevented. The bolt 40 can be accurately attached to the bolt attachment boss 39 before attachment.

As a result, when the LED 50 is turned on after assembly, since the head 41 is at a fixed position, it is possible to avoid the inconvenience of blocking the light and darkening the side light emission by protruding from the bolt mounting boss 39. - 特許庁
Particularly, in this example, since the glove 20 is attached to the holder 30 by one-touch pushing, the rib 27 can be reliably arranged on the head 41 .

Thus, the indicator lamp 10 integrated by attaching the bolt 40 has the bottom portion 31 overlaid on the front surface of the attached portion 45, the cylindrical portion 31c is inserted into the cylindrical hole 47 of the attached portion 45, and the screw portion 43 is inserted. It is passed through the screw hole 46 of the attached portion 45 .
Subsequently, when the nut 44 is fastened to the threaded portion 43 protruding from the rear surface of the mounting portion 45 , the indicator lamp 10 is fixed to the front surface of the mounting portion 45 .

At this time, the space between the bottom portion 31 and the front surface of the attached portion 45 is reliably sealed by the second O-ring 38 .
Moreover, since the slide hook 33 is brought into close contact with the attached portion 45 of the indicator lamp 10, it will not be disengaged from the male locking portion 23 due to unintentional outward movement in the radial direction.
Further, since the bolt 40 is prevented from rotating by the corner root portion 42 and the head portion 41 is prevented from coming off by the rib 27, the nut 44 can be fastened on the rear surface of the mounting portion 45 without pressing the indicator lamp 10 from the front side. can be installed by itself.

In particular, even in a situation where the mounting portion 45 is made of a thick wall or the like, and conventionally, one worker had to hold the indicator light 10 at the front and another worker had to fix it at the back, this example can be used. , Installation work can be done efficiently by only one staff at the back.

Prior to the attachment to the attached portion 45, the indicator lamp 10 is assembled by first positioning the substrate 51 from the front surface with the positioning bosses 58 of the bottom portion 31, attaching it to the substrate hook 52 by engaging it, and simultaneously bolting it. 40 is passed through the head accommodating recess 39a and square hole 39b, and then the glove 20 is attached to the holder 30 by one-touch push-in, thereby completing assembly and integration. Therefore, the indicator lamp 10 can be assembled only from the front side.
Further, if it is shipped in an assembled state, the work staff does not need to check the inside of the indicator light 10, and the work of the work staff is completed only by the mounting work with the nut 44 on the back side.
Therefore, handling becomes easy, and the quality at the time of shipment can be maintained.

It should be noted that the indicator lamp 10 of this embodiment can also be attached from the front. In this case, before the globe 20 is attached, a normal bolt 40 to be rotated in the work on the front side is passed through the bolt attachment boss 39 and screwed to the attached portion 45 side to which the nut is attached in advance, Then, the glove 20 can be attached by one-touch push-in.

Next, the board hook 52 will be described in detail. The substrate hook 52 is shown in an enlarged manner in the enlarged encircled portion E-2 in FIG. In this circled portion, A shows a plan view of the board hook 52, and B shows a perspective view of the board hook 52. As shown in FIG.
The substrate hook 52 consists of an engaging claw 53 that overlaps and engages the substrate 51, and an arm 55 having a neck portion 54 provided at one end thereof.

The arm 55 has a cantilever shape with the side on which the neck portion 54 is provided as a free end and the other end as a fixed end. By forming the arm 55 as a relatively long cantilevered type, it can function as a one-touch type engaging hook even though the bottom portion 31 is made of hard resin.
Board hook 52 is separated from bottom 31 except for the fixed ends of arms 55 by molded holes 56 , 57 .

The arm 55 is arranged on the bottom portion 31 of the holder along the side portion of the substrate 51 , and the neck portion 54 rises at a height approximately equal to the thickness of the substrate 51 . The locking claw 53 protrudes from the upper end of the neck portion 54 so as to overlap the substrate 51 .
Since the arm 55 is formed sufficiently long so that it can be elastically deformed and bent, the locking claw 53 can be moved between a position overlapping the substrate 51 and a position separated from the substrate 51 . .

As shown in FIG. 4, a plurality of substrate hooks 52 are provided on the bottom portion 31 . In this example, two of them are provided, and they are provided in the vicinity of two corners on one diagonal line among the four corners of the rectangular substrate 51 .
A pair of positioning bosses 58 are provided near two corners on the other diagonal line. The pair of positioning bosses 58 are spaced apart by a predetermined distance so that the corners of the substrate 51 can be inserted to a certain depth.

To mount the substrate 51 onto the bottom portion 31, as shown in FIG. 4, the other diagonal pair of corners is positioned between corresponding positioning bosses 58, and the one diagonal pair of corners is positioned. Push in the vicinity of the corner of Then, the locking claws 53 are spread and engaged with the sides of the board 51 . Therefore, the substrate 51 can be engaged and fixed onto the bottom portion 31 with one touch.

Moreover, since the substrate 51 is not provided on the cylindrical portion 31c but is attached to the surface of the bottom portion 31 from the front side of the holder 30, the substrate 51 can be enlarged without being restricted by the cylindrical portion 31c.
In this example, the diagonal line is larger than the inner diameter of the cylindrical portion 31c, so that the opening can be made into a substantially square shape. Therefore, it becomes possible to arrange the LEDs and mount a larger number of LEDs.
A connector 51a is provided on the lower surface of the substrate 51, and one end of a wiring 59 is connected thereto (FIG. 3). The wiring 59 is connected through the cylindrical portion 31c by the work staff when attaching the indicator lamp 10 to the attached member 45. As shown in FIG.

Note that the number and structure of the substrate hooks 52 are not limited to those described above, and various variations are possible.
The slide hook 33 does not necessarily require the connecting arm 33d to be U-shaped. For example, FIG. 10 shows a plan view of a variation of the slide hook. A slide hook 33A shown in A of FIG. 10 is a connecting arm 33f that curves with one radius. Such a shape also allows radial movement of the slide hook 33A. It should be noted that the shape of such a connecting arm can be various other shapes, such as having a bent shape such as a bent shape so as to have springiness.

Also, the slide hook can be made separate from the holder side frame 32 .
For example, as shown in FIG. 10B, the slide hook 33B is formed of a plate spring or bar spring separate from the holder side frame 32. As shown in FIG.
In this case, the portion that replaces the female engaging claw 33b and the main body portion 33c is a substantially U-shaped bent portion 33g formed in the center in a plan view, and left and right of the curved portion 33g are linearly extending connecting arms 33h.
Both ends of the connecting arm 33h in the left-right direction are fitted into, for example, grooves opened upward, which are formed in the boss portion 32a.

Even in this case, the bent portion 33g and the connecting arm 33h are elastically deformed as indicated by the phantom lines, so that the bent portion 33g moves radially outward and then elastically returns to the initial position. .
Further, the solid line in the drawing indicates the initial state, and the bent portion 33g is in the initial position and overlaps the tip of the male locking portion 23 to be engaged therewith.
When the slide hook 33 is separated from the holder-side frame 32 in this way, it is not limited to the above example, and various other possibilities such as using a telescopic pin are possible.

Next, a second embodiment will be described with reference to FIGS. 11 and 12. FIG. In this example, the second O-ring is mainly changed from the first example, and the completed assembled product is made completely waterproof as a single unit for outdoor use.
Note that the same reference numerals are used for the parts that are common to the first embodiment, redundant explanations are omitted, and differences are mainly explained (the same applies to other embodiments).
FIG. 11 is a half-sectional side view of the indicating lamp 10 according to the second embodiment. FIG. 12 is a diagram showing the dimensional configuration at the height b of the holder side frame.

This indicator lamp 10 has the same structure as the glove 20 and the one-touch push-in type engagement by the male engaging portion 23 and the slide hook 33 . In this example, the second O-ring is eliminated, and instead, a third O-ring 48 (corresponding to the second seal of the present invention) is provided between the head 41 of the bolt 40 and the bottom of the head housing recess 39a. is provided. The third O-ring 48 is slightly smaller in diameter than the head 41 and considerably thinner than the second O-ring, and seals between the bolt 40 and the square hole 39b.

On the other hand, a box 31d is integrally provided at the center of the bottom of the holder 30 instead of the open cylindrical portion 31c. A wiring hole for the wiring 59 is provided at the bottom of the box 31 d , and the wiring 59 is passed through the box 31 d through the hole, and one end of the wiring 59 is directly coupled to the substrate 51 . A grommet 31e seals between the wiring 59 and the bottom of the box 31d. The sealed box 31d, the third O-ring 48 and the first O-ring 36 make the assembled indicator lamp 10 completely waterproof.

That is, the product is shipped as an assembled finished product with the wiring 59 connected, and the single product in the shipping state is completely waterproofed so that water does not enter from the outside. Therefore, outdoor use is possible.
Since the inside of the indicator lamp 10 is waterproof, it is not possible to drill a hole in the bottom of the board 51 to provide the board hook 52 (FIG. 4). installed.
The bolt 51b protrudes slightly above a straight line S passing through the top surface 39c of the boss 39 accommodating the bolt 40. As shown in FIG.

As shown in FIG. 12, the height b of the holder side frame 32 (the height of the slide hook 33) is defined by the respective thicknesses of the female engaging claw 33b and the distal end engaging portion 26 of the male locking portion 23 as t1 and t2. and the thickness t4 of the support shelf 31b of the first O-ring 36. As shown in FIG. Therefore, if the thickness of each of these is 2 mm, the height b of the holder side frame 32 is 6 mm, which is a significantly small value.
Therefore, the height b of the holder side frame 32 can be made as small as possible.

Next, a third embodiment will be described with reference to FIGS. 13 to 18. FIG. This example is a rotary example. 13 is a perspective view of the indicator lamp 10A, FIG. 14 is a side view, FIG. 15 is an assembly perspective view, FIG. 16 is a cross-sectional view similar to FIG. 6, and FIG. , and FIG. 18 is an explanatory diagram of the rotational engagement.

This indicator lamp 10A is of the same completely waterproof outdoor type as the second embodiment, and has substantially the same structure as the second embodiment. However, in the holder 30A, the female side engaging portion is not a slide hook, but a non-movable locking block 60 such as a slide, and has a rotation stop hook 70 in the first ring groove 35 (Fig. 17). B), the male side engaging portion 23 of the glove 20A is different in that it has an engaging recess 28 that engages with the locking block 60 and a rotation stopping recess 29 (see A in FIG. 17).

As shown in FIGS. 16 and 17, the male side engaging portion 23 has the same curved outer flange shape as in the previous embodiments. Four engagement recesses 28 are formed on the outer periphery of the male-side engagement portion 23 at intervals of 90° in the circumferential direction. The engaging recess 28 is relatively large enough to accommodate the locking block 60 in plan view (see A in FIG. 18).

Further, the rotation-stopping recesses 29 are provided at positions that are displaced in the circumferential direction from the adjacent engaging recesses 28 and intermediately therebetween, and are formed at four intervals of 90° in the circumferential direction. The rotation-stop recess 29 is a relatively small recess that is open outward and has a substantially U-shaped notch.
The number of engaging recesses 28 and rotation-stopping recesses 29 is arbitrary as long as it is one or more.
As shown in FIG. 17B, four locking blocks 60 are formed in the first ring groove 35 so as to protrude from the inner wall surface of the holder side frame 32, and are formed at intervals of 90° in the circumferential direction.

Encircled portion E-5 shows a perspective view of locking block 60 in C and a cross section along line 17-17 of C in D. FIG. The locking block 60 is substantially L-shaped in section D, and includes a stopper wall 61 projecting in the height direction of the holder side frame 32 and a ceiling wall 62 extending in the circumferential direction.
The stopper wall 61 and the ceiling wall 62 protrude from the inner wall surface of the holder side frame 32 into the first ring groove 35 by the same depth as the radially inward cut from the outer peripheral portion of the engaging recess 28 .
Moreover, the space between the ceiling wall 62 and the bottom of the first ring groove 35 is about the thickness of the outer peripheral portion of the male side engaging portion 23 .

Circumferential ends of the ceiling wall 62 are closed by a stopper wall 61 on the clockwise front side in the circumferential direction of the first ring groove 35, and are open on the other side. Reference numeral 63 in the circled portion E-5 is a hole for molding the locking block 60. As shown in FIG.
The rotation stop hook 70 is provided at only one place in the circumferential direction at the bottom of the first ring groove 35 and is positioned between the adjacent locking blocks 60 .

A perspective view of the anti-rotation hook 70 is shown in the encircled part E-6. As shown in this figure, the anti-rotation hook 70 protrudes upward from the bottom of the first ring groove 35 and has an engaging projection 71 on one end of the elastic arm 72 which is sized to fit into the anti-rotation recess 29 . . The elastic arm 72 is elongated linearly in the circumferential direction by through holes 73 and 74 provided in the first ring groove 35, and has a free end at one end where the engaging projection 71 is provided and a fixed end at the other end. It is a holding type arm and cantilevers the engaging projection 71 .

By forming the elastic arm 72 to be long, even a hard resin can be elastically deformed.
The engaging projection 71 is provided at a position overlapping the male side engaging portion 23 and is pushed downward by the male side engaging portion 23, but when the rotation stopping recess 29 comes up, it protrudes upward and closes to the rotation stopping recess. 29.

FIG. 18 shows a state before engagement in which the glove 20A is placed on the holder 30A and the lock block 60 is put into the engagement recess 28 in A. FIG. B shows a state in which the glove 20A is rotated and the male side engaging portion 23 is engaged with the locking block 60. FIG.

First, in A, the glove 20A is placed on the holder 30A, and the lock block 60 is put into the relatively large engagement recess 28. As shown in FIG. At this time, of the radial direction edge portions of the engaging recess 28, the edge portion 28a on the front side in the clockwise direction and the edge portion 28b on the rear side in the clockwise direction do not overlap the locking block 60 and are separated from the locking block 60. there is Also, the rotation stop hook 70 is overlapped under the male side engaging portion 23, and the engaging projection 71 is pushed downward to disengage.

Therefore, when the globe 20A is rotated clockwise (indicated by arrow i), as shown in B,
The engaging recess 28 is displaced in the circumferential direction, the rear edge 28b abuts against the stopper wall 61 of the locking block 60, and the tip engaging portion 26 overlaps under the ceiling wall 62 and engages in the vertical direction. In this state, the glove 20A is prevented from coming off from the holder 30A.
At the same time, one anti-rotation recess 29 overlaps the engaging projection 71 of the anti-rotation hook 70 . Then, the engaging protrusion 71 protrudes upward at the restoring elastic portion of the elastic arm 72 and fits into the rotation stopping recess 29 .

As a result, since the relative rotation of the globe 20A and the holder 30A in the circumferential direction is restricted, inadvertent counterclockwise rotation of the globe 20A is prevented, and the rear edge 28b of the engaging recess 28 is engaged. By separating from the stopper wall 61 of the locking block 60 and eventually coming off the ceiling wall 62, a situation in which the engagement between the male side engaging portion 23 and the locking block 60 is released is prevented.
Since the anti-rotation hook 70 is provided outside the first O-ring 36, even if holes (73, 74) penetrating through the bottom portion 31 are provided, there is no effect on waterproofness.

The assembly of this indicator light is shown in FIG. First, the bolt 40 is inserted through the third O-ring 48 into the boss 39 of the holder 30A, and the first O-ring 36 is inserted into the first ring groove 35. As shown in FIG. Further, the board 51 is put on the center of the bottom part 31, the bolt 51b is inserted into the through hole 51c of the board 51, and screwed into the female screw hole of the boss 51d provided inside the boss 39. As shown in FIG. Subsequently, the glove 20A is overlaid and the rotation is stopped.

Since it is a rotary type, the lower surface of the rib 27 is not curved but straight in the horizontal direction (see FIG. 16).
A box 31d (FIG. 16) formed on the lower surface of the holder 30A contains wiring 59, one end of which is connected to the substrate 51 and sealed with a grommet 31e. Thus, the outdoor indicating lamp 10A is completed and assembled.

With such a rotary type, two actions of stacking and then rotating are performed, but the structure can be simplified without requiring a slide hook as in the previous embodiment.
In this example, the dimensional configuration of the height b of the holder side frame 32 is the same as in the previous example, and the smallest possible size can be obtained. Moreover, the waterproof structure is also the same.
The rotary type of this example can also be applied to the indoor indicator lamp of the first embodiment.

FIG. 19 shows a half section similar to FIG. 6 according to a fourth embodiment. In this example, the male side engaging portion 23B is movable and the female side engaging portion is a stationary fixed hook 33B in the second embodiment. That is, the male side engaging portion 23B provided in the glove 20B has a substantially U-shaped cross section that opens upward, and has an inner portion 80, a curved middle portion 81, and an outer portion 82. As shown in FIG.

The inner portion 80 contacts the first O-ring 36 at an inclined curved surface that continues to the glove sidewall 22 . The outer portion 82 faces the inner portion 80 and can be bent in the radial direction by elastic deformation of the curved intermediate portion 81 . A tip 83 of the outer portion 82 forms a free end and is engaged with and disengaged from a pawl 84 that is bent horizontally to the upper end of the fixed hook 33B and protrudes radially inward.

Therefore, as shown in the circled portion E-7, when the male side engaging portion 23B is pushed into the fixed hook 33B in the direction of arrow j, the outer portion 82 is pushed by the stationary claw 84, and the curved intermediate portion 81 is pushed. is elastically deformed, bent radially inward (in the direction of the arrow k), and passes downward inside the claw 84 .
When the tip 83 passes the pawl 84 , the outer portion 82 bends outward due to the restoring elasticity of the curved intermediate portion 81 , and the tip 83 abuts and engages the lower surface of the pawl 84 .

In this way, it is possible to engage with a one-touch push-in type, and since the immovable fixing hook 33B is provided on the outer side wall 32 of the holder, the outer shape of the product is fixed, and in the attached state, there is a working space between other articles around the product. need not be ensured.

FIG. 20 relates to the fifth embodiment, and the indicating lamp 20C of this example does away with the male side engaging portion 23B which was movable in the previous embodiment, and is made immovable as in FIG. Instead of the stationary fixed hook 33B, this portion is provided with a vertically movable movable hook 33C.
In the figure, A is a half sectional view similar to that of FIG. 19, B is a perspective view of the movable hook 33C from obliquely above, and C is a bottom view thereof.

In these figures, the holder 30C corresponds to a movable hook 33C instead of the slide hook in FIG.
The movable hook 33C is provided on a portion of the holder side frame 32 and the bottom portion 31, and includes a female claw 90 and a vertical wall portion 91 having a substantially L-shaped cross section, and a vertical wall portion 91 extending radially from the bottom portion 31. It is composed of a connecting arm 92 continuous to the holder 30C and formed integrally with the holder 30C.

The female claw 90 projects radially inward from the upper end portion of the standing wall portion 91 and overlaps the outer peripheral portion of the male side engaging portion 23 . The standing wall portion 91 is formed by separating a part of the holder side frame 32 with a slit 93 .
A pair of connection arms 92 are provided in parallel in the radial direction on the bottom portion 31 . Each tip of the pair of connecting arms 92 continues to both circumferential ends of the lower end of the standing wall portion 91 . A proximal end 92a of each connecting arm 92 continues to the support shelf 31b.

Each connecting arm 92 is formed in the bottom portion 31 by a pair of slits 93 and a through hole 94 formed in the middle thereof. The slit 93 is formed to reach the holder side frame 32 from the bottom portion 31, and the standing wall portion 91 is separated from the holder side frame 32 to be movable.
The female claw 90 is supported by a pair of connecting arms 92 via an upright wall portion 91 . Each connecting arm 92 can swing vertically (indicated by the arrow m) around a base end portion 92a. The female claw 90 moves vertically and radially as the connecting arm 92 swings.

When the male side engaging portion 23 is pushed downward, the outer peripheral portion comes into contact with the female claw 90 and pushes it down. Therefore, the female claw 90 is pushed by the male side engaging portion 23 to move downward and at the same time is pushed open radially outward. When the tip of the male side engaging portion 23 passes downward in the radially inner side of the female claw 90 that has been pushed open, the female claw 90 returns radially inward, and over the outer peripheral portion of the male side engaging portion 23 . The movable hook 33C and the male side engaging portion 23 are engaged with each other.

By doing so, the movable hook 33C can be vertically moved to engage with one-touch push-in. Moreover, since a part of the holder side frame 32 is moved vertically, the amount of outward movement in the radial direction of the movable hook 33C can be reduced, and the holder side frame 32 only needs to be formed with the slit 93, so that the holder side frame 32 has a neat appearance. become a thing.

FIG. 21 shows an example of a sixth embodiment, in which the lower portion of the hole for the bolt 40 provided in the bottom portion 31 is enlarged to provide a space between it and the mounting surface, and this space is used as the locking recess 49 for the bolt 40. is.
The anti-loosening concave portion 49 prevents the bottom portion 31, which is pressed against the attached portion 45 by tightening the bolt 40, from being deformed due to temperature changes and vibrations, thereby preventing loosening of the fastening portion.
The space of the locking recess 49 absorbs such deformation.
Therefore, if it is applied to an outdoor-type indicator lamp that is likely to loosen due to temperature changes and vibrations, the durability can be improved.

Since the bottom portion 31 must be made thicker when the locking recess 49 is provided, the bottom portion 31 is preferably applied to a completely waterproof outdoor type in which the bottom portion 31 can be made thin. In this example, the previous example is used for convenience, but any of the outdoor types described so far are possible.
However, this locking recess 49 can also be applied to an indoor type.

FIG. 22 shows a cross-sectional view of the right half of the indicating lamp according to the seventh embodiment. FIG. 22 is almost the same as FIG. 16 in the third embodiment, which is an indicator lamp for outdoor use. 16, the only difference is that the ribs are removed from the globe, the bosses for bolt attachment in the holder are used as inserts, and the shape of the bolts with square roots is slightly changed.

A glove 20D in this example has ribs 27 (FIG. 16) removed.
The holder 30D has a bolt mounting boss 39A into which a square rooted bolt 40A is inserted. In addition, in the corner rooted bolt 40A of this example, the head portion 41A and the corner root portion 42A are thinner than the head portion 41 and the corner root portion 42 of the corner rooted bolt 40 shown in phantom lines in FIG.

The head 41A has a flat head and is thinner than the round head 41. - 特許庁However, the shape of the head is free.
Since the position of the head portion 41A of the corner root portion 42A is slightly lowered, the width in the vertical direction is slightly narrower than that of the corner root portion 42 shown in FIG.

The bolt mounting boss 39A has a mountain-shaped cross section and a raised center. .
The square root bolt 40A is inserted into the boss 39A with the head portion 41A and the square root portion 42A embedded therein. The head 41A is covered with the resin of the boss 39A around its periphery including the upper part. The corner root portion 42A is also covered with resin.

A straight line X2 is a line that indicates the center of the thickness of the boss 39A and passes through the 1/2 point in the vertical direction of the thickness of the boss 39A (the distance between the vertex 39d and the bottom surface 31a). The head portion 41A is positioned so as to overlap with the straight line X2 and is inserted into the substantially central portion of the thickness.
The distance Y1 between the top surface of the head 41A and the straight line X1 and the distance Y2 between the bottom surface of the head 41A and the bottom surface 31a are substantially equal.

In this way, the thickness of the resin around the head portion 41A becomes substantially uniform, so that the resin flows uniformly during insert molding, and distortion of the resin in the molded boss 39A is reduced.
In this way, since the square rooted bolt 40A is inserted into the resin of the boss 39A, the head 41A is pressed by the resin of the boss 39A above to prevent it from coming off. Further, rotation is prevented by integrating the corner root portion 42A with the surrounding resin.

Therefore, it is not necessary to provide a rib on the globe or specially provide a square hole in the boss of the holder into which the root portion of the square root bolt is fitted. Moreover, the third O-ring 48 can also be omitted.
This facilitates molding of the glove and holder and their assembly.
Moreover, by arranging the head 41A as in this example, the quality of insert molding can be improved.

In addition, in this way, the structure in which the mounting bolts of the indicator lamp body are insert-molded into the holder,
It can be applied to the indicator lamps of the above embodiments. In addition, other indicator lamps, such as those in which the glove and holder are screwed together as in Conventional Example 1, and male hooks and female hooks bent at right angles in opposite directions as in Conventional Example 2, are used. It can also be applied to the one that engages the
Furthermore, various types of mounting bolts other than square rooted bolts can be used. When using a square rooted bolt, the square rooted bolt 40 shown in FIG. 16 can be used as a matter of course.
Moreover, the vertical width of the root portion and the size and shape of the head are free.

Examples of other types of bolts include, instead of the square root portion, protrusions that protrude radially outward from the top of the bolt shaft where threads are formed and enter the resin to prevent rotation, In some cases, recesses are provided to prevent rotation by denting and entering resin, and these projections and recesses are used as rotation preventing means. Examples of the concave portion include a structure in which a portion of the side surface is notched to form a D-shaped cross section, a through hole in the radial direction, and the like.

In this way, a similar anti-rotation function can be obtained without providing the square root portion. Moreover, the bolt is prevented from slipping upward from the resin by the anti-rotation means. Therefore, the anti-rotation means also serves as the anti-removal means, and the head formed on the upper end of the bolt can be omitted.

The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the principle of the invention. For example, bolt 40 is not limited to a square root round head bolt.
A variety of known detents are available. The anti-rotation is not limited to the corner root portion 42 of the embodiment, and it is sufficient if it has a non-circular cross section.

The bolt head 41 may not be of the low head type. It does not have to be rounded.
By providing a locking bolt and a rib 27 or the like, which is formed by attaching the globe to the holder, and providing a means for retaining the bolt, labor-saving mounting only on the rear side in the present invention becomes possible. Moreover, this labor-saving mounting structure itself is not limited to application to those having a mounting form of a glove and a holder using an inclined male locking portion in each of the previous embodiments, and can be applied to other various mounting forms, such as , the prior art 1 shown in FIG. 23 and the prior art 2 shown in FIG.

For the purpose of labor-saving mounting, a nut may be provided on the holder side as a fastening member in place of the bolt in the labor-saving mounting structure, and bolts may be used for fastening from the rear side. In this case, it is used as an indoor type.
Moreover, this labor-saving mounting only on the back side is not limited to the indicator lamp having the engagement structure of this embodiment, which is mounted by one-touch push-in type or rotary type. For example, it can also be applied to the conventional example 1 shown in FIG.

Furthermore, the elastic member that brings the male locking portion 23 into close contact with the female engaging claw 33b is not limited to the first O-ring 36. It may be a non-sealing suitable elastic member such as a leaf spring.

10: indicator light, 20: globe, 22: globe side wall, 23: male locking part, 30: holder, 31: bottom part, 32: holder side frame, 33: slide hook, 33b: female locking claw, 33d: connection arm

Claims (8)

A globe (20) having a top surface (21) and globe side walls (22) provided therearound, and a holder (30) having a bottom part (31) and holder side frames (32) provided therearound, A glove side wall (22) is fitted inside the holder side frame (32), and an outwardly bent male engaging portion (23) provided on the glove side wall (22); and the holder side frame (32). The inwardly bent female engaging portion (33) provided in the body is engaged in the vertical direction, and the male engaging portion (23) is pressed from below so as to be in close contact with the female engaging portion (33). In an indicator light (10) provided with an elastic member (36) for
The male engaging portion (23) has an inclined portion (25) that opens downward,
The elastic member (36) is arranged inside the inclined portion (25) and at a position higher than the lowest end portion of the inclined portion (25), and is arranged to move the inclined surface of the inclined portion (25) from the inside to the outside. An indicator lamp characterized by being pressed obliquely upward. 2. An indicator lamp according to claim 1, wherein said inclined portion (25) forms a curved surface that curves downward. 3. An indicator lamp according to claim 1, wherein said elastic member (36) is a sealing member interposed between said globe (20) and said holder (30). 4. In any one of claims 1 to 3, by pushing the male engaging portion (23) toward the female engaging portion (33), the male engaging portion (23) or the female engaging portion (33) is elastically deformed to engage the male engaging portion (23) and the female engaging portion (33) in the vertical direction. In claim 4, the female engaging portion (33) is a slide hook that advances and retreats in the radial direction by being pressed by the male engaging portion (23),
The slide hook is provided on a part of the holder side frame (32), one end of which is connected to the holder side frame (32), and is supported by the other ends of a pair of curved connecting arms (33d). An indicator light characterized by being supported. According to any one of claims 1 to 3, the male engaging portion (23) and the female engaging portion (33) are engaged by relatively rotating the glove (20) and the holder (30). , an indicator light that engages in the vertical direction. In claim 3, the seal member interposed between the globe (20) and the holder (30) forms a first seal member,
The bottom portion (31) of the holder (30) is penetrated by a fastening member hole (39b) through which the fastening member (40) for attachment to the attached portion passes. 2. An indicator light, characterized in that two sealing members (48) are provided. In claim 7, the fastening member (40) is a bolt having a square root portion (42), and the fastening member hole is a square hole (39b) into which the square root portion (42) is fitted,
An indicator light, wherein the globe (20) is provided with retaining means for retaining the head (41) of the bolt.

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