JPH0348807Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention engages the leg of the front lens with an engaging part on the lamp body side, loads a sealant into this engaging part, and screws the two together. Regarding the vehicle lighting equipment to be concluded.

[Prior art]

In a conventional lamp of this kind, as shown in FIG. Both 1 and 5 are assembled. A screw hole 3 is formed in the leg part 2, a screw insertion hole 7 is formed in the lamp body 5 side, and a screw 4 is inserted from the back side of the lamp body.
are screwed into these to connect the lamp body 5 and the front lens 1. Further, a sealant 8 is loaded into the engagement groove 6 to make the joint between the leg portion 2 of the front lens and the engagement groove 6 of the lamp body liquid-tight. The screws 4 are screwed together using an automatic screw fastening machine, and with the tip of the driver guide G of the screw fastening machine in contact with the outer peripheral surface of the screw insertion hole 7, the screws 4 are screwed together using a screwdriver D. It is designed to be screwed in.

[Problem that the invention attempts to solve]

However, in the structure of the conventional vehicle lamp mentioned above,
The sealant 8 also enters the screw hole 3 formed in the lens leg 2, and when the screw 4 is screwed,
The sealant 8 in the screw hole 3 is pushed by the screw 4 to be inserted, is pushed out from the insertion hole 7 as shown by reference numeral 8a, and adheres to the tip of the automatic screw fastening machine, and due to this attached sealant 8a. Smooth screw tightening by the screw fastening machine may be hindered, such as when the screw feeding mechanism of the fastening machine does not work properly or when the tip opening/closing arm member does not work well.

Therefore, each time a screw is tightened, the sealant 8a attached to the tip of the fastener must be wiped off, which is very troublesome.

[Means for solving problems]

The present invention was devised in view of the problems of the prior art, and its purpose is to solve the above problems. At the same time as engaging the leg engaging part formed on the lamp body side, a sealant is loaded into the leg engaging part, and the fastening screw is inserted through the screw insertion hole formed on the lamp body side. A vehicle lamp in which a lamp body and a front lens are connected by being screwed into a screw hole, wherein a standing wall is provided on the outer periphery of the screw insertion hole on the back side of the lamp body for abutting with a contact reference part of a screw fastening machine. It is characterized by the fact that it has been formed.

According to this configuration, the screw fastening machine operates the screwdriver to screw the screw with the contact reference part in contact with the vertical wall, so that the fastening machine applies the sealant pushed into the screw insertion hole. The above objective is achieved without touching.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

FIGS. 1 and 2 are diagrams showing essential parts of a first embodiment of the present invention.

In these figures, reference numeral 15 denotes a lamp body in which a light source (not shown) is provided, and an engagement groove 16 is provided around the front opening of the lamp body 15. A leg portion 12 formed protruding from the back surface of the front lens 11 is engaged with this engagement groove 16 . A boss portion 13 is formed at a predetermined location on this leg portion 12.
A screw hole 14 is formed in 3. This screw hole 1
A screw insertion hole 15b is formed at a position of the engagement groove bottom 15a corresponding to No. 4. The screw insertion hole 15b is approximately mortar-shaped, and has a central portion slightly penetrated, and its outer peripheral portion is also thin, so that the screw 17 can be easily screwed in from the back side of the lamp body 15.
This allows the body 15 and the front lens 11 to be screwed together. Also, the engagement groove 16
A sealant 18 is loaded inside to make the joint between the front lens 11 and the lamp body 15 liquid-tight.

As shown in FIG. 2, a cylindrical vertical wall 20 is formed around the outer periphery of the screw insertion hole 15b formed in the engagement groove bottom 15a of the lamp body 15. The vertical wall 20 is sized so that the tip of a driver guide of an automatic screw fastening machine, which will be described later, can come into direct contact with the upper end surface of the vertical wall.

FIG. 3 shows a screw fastening machine 30 for screwing the lamp body 15 and the front lens 11 together.

The screw fastening machine 30 includes a rotatable driver 32
It mainly consists of a cylindrical driver guide 34 surrounding the driver 32 and a cylindrical casing 36. The driver 32 is slidable in the vertical direction, and protrudes below the driver guide 34 and the casing 36 to turn the screw when tightening the screw. Reference numeral 37 is a half-cylindrical arm member that can be opened and closed and is provided at the lower end of the casing 36.
It is designed to be able to swing in the direction of the arrow around hinges 38 provided opposite to each other. A semicircular hook 37a is formed at the lower end of the pair of arm members 37, respectively.
a cooperates to form a hole slightly larger than the shaft portion 17a of the screw 17. The head 17b of the screw 17 introduced from the screw inlet 39 is connected to the hook 37.
supported by a, as shown in Figure 3a,
The shaft portion 17a of the screw 17 is now in a downwardly protruding state. From this state, the driver 32 and driver guide 34 descend together, and the driver guide 34 pushes the arm member 37 apart, and the driver 32 engages with the cross groove 17c formed in the screw head 17b. Then, the driver 32 rotates to screw the screw 17 into the object.

Next, a procedure for assembling the lamp of this embodiment will be explained.

First, as shown in FIG. 1b, the sealant 18 is loaded into the engagement groove 16 of the lamp body 15, and the leg portion 12 of the front lens 11 is engaged into the engagement groove 16. Connect the front lens 11 to the lamp body 15
Assemble to. Next, the front lens 11 and the lamp body 15 are assembled into an integral body so that the lens 11 side faces upward, and the screws are tightened using the screw tightening machine 30, as shown in FIGS. 3A to 3D.

To tighten the screws, first use the fastening machine 30 above the standing wall 20.
3, and the screw 17 is made to protrude from the arm member 37, as shown in FIG. 3a. Next, the fastener 30 is lowered to a position where the shaft portion 17a of the screw contacts the screw insertion hole 16. Then, as shown in FIGS. 3b and 3c, the driver 32 and driver guide 34 are lowered simultaneously. At this time, the lower end of the driver guide 34 pushes the arm member 37 outward as shown in FIG.
is supported by the driver guide 34. Then, as shown in FIG. 3c, the driver guide 34
At the same time that the tip 34a of the screwdriver 32 comes into contact with the upper end surface of the vertical wall 20, the tip of the driver 32 touches the screw head 17b.
engage with. When the driver guide 34 stops moving forward, the driver 32 begins to rotate, and the screw 17 penetrates through the bottom of the insertion hole 15b and is screwed into the screw hole 14, as shown in FIG. 3d. and screwdriver 3 via screw 17.
When a predetermined load is applied to the driver 2, the rotation of the driver 32 stops. In this way, the lamp body 15 and the front lens 11 are fastened together with the screws 17.

In this way, according to this embodiment, the screw fastening machine 30
The driver guide tip portion 34 serves as the reference contact portion of the
A standing wall 20 that can be abutted is provided protruding around the screw insertion hole 15b, and even if the sealant 18 is pushed out into the screw insertion hole 15b when the screw 17 is screwed in, the driver guide tip end 34a
The screw fastening machine 30 including the screw fastening machine 30 is prevented from coming into contact with the sealant 18, and as a result, various troubles caused by the sealant adhering to the screw fastening machine 30 are avoided.

Figures 4 and 5 are the second and second versions of the present invention, respectively.
It shows the main part of the third embodiment.

In the second embodiment shown in FIG.
Although the standing wall 22 that the driver guide tip 34a of No. 0 comes into contact with is formed in a cylindrical shape, it has a structure in which slits 23 are formed at three equally spaced positions in the circumferential direction.

Further, in the third embodiment shown in FIG. 5, a vertical wall 24 consisting of a pair of rectangular protrusions 24a and 24b is formed at positions facing each other with the screw insertion hole 15b interposed therebetween.

[Effect of idea]

As is clear from the above explanation, according to the present invention, a vertical wall is formed on the outer periphery of the screw insertion hole of the lamp body, which serves as a contact reference part for the screw fastening machine. Adhesion can be avoided. As a result, the screw fastening machine can be operated accurately at all times, and reliable screw fastening is possible. Further, since the sealant does not adhere to the screw fastening machine, the trouble of wiping off the adhered sealant every time is saved, and the screw fastening work can be carried out quickly.

[Brief explanation of the drawing]

FIG. 1a is a sectional view of a main part of the first embodiment of the present invention, FIG. 1b is a sectional view explaining its assembled state, and FIG. 2 is a perspective view showing the main part extracted.
3A to 3D are cross-sectional views showing the structure of an automatic screw fastening machine, and are explanatory diagrams for explaining the screw fastening state. FIG. 4 is a perspective view of the main part of the second embodiment of the present invention, and FIG. FIG. 6 is a perspective view of a main part of a third embodiment of the invention, and FIG. 6 is a sectional view of a main part of a conventional vehicle lamp. 11...Front lens, 12...Lens leg, 1
4...screw hole, 15...lamp body, 16...engaging groove which is the lens leg engagement part, 17...screw, 1
8...Sealant, 20,22,24...Standing wall, 3
0... Automatic screw fastening machine, 34a... Driver guide tip part which is the contact reference part of the screw fastening machine.

Claims (1)

[Scope of utility model registration request] Engage the legs provided around the back surface of the front lens with the leg engagement parts formed on the lamp body side, load sealant into the leg engagement parts, and form fastening screws on the lamp body side. A vehicle lamp is provided that connects a lamp body and a front lens by screwing the screw into a screw hole formed in a leg portion through a screw insertion hole formed in the screw hole. A vehicular lamp characterized in that a standing wall is formed on which a contact reference portion of the vehicle comes into contact.