JPS6222447Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a hanger device of a transfer device suitable for transferring automobile bodies in automobile manufacturing plants and the like.

Conventional technology Generally, when outfitting a car body while being suspended and transferred to the hangers of an overhead conveyor installed along an automobile manufacturing line, conventionally, the front and rear of the body are suspended by two pairs of left and right hangers. Therefore, if the hanger is working on the outer surface of the body, for example,
There were drawbacks that hindered work such as installing the seat and rear window glass, and installing the dash board on the instrument panel. For this reason, a hanger device in which the body is held by a pair of left and right L-shaped hangers has been proposed, but the vertical rods of the hangers are located on the outside of the front half of the body, which obstructs the installation of the glass at the front of the body. Another disadvantage is that the length of the hanger rod must be increased to withstand the longitudinal bending moment generated in the hanger rod due to the hanging load, which hinders assembly work.

Problems to be Solved by the Invention The object of the invention is to provide a hanger device for a transfer device that eliminates the above-mentioned drawbacks when using an L-shaped hanger.

Means to Solve the Problems The present invention uses a primary hanger whose front and rear ends are horizontally rotatably connected to a carrier running on a rail in an overhead conveyor for transporting automobile bodies, and an external conveyor on both sides of the primary hanger. A pair of left and right inverted T-shaped hangers are pivotally supported so that they can be opened and closed only in the opposite direction, an opening/closing hanger is provided with a cam roller that is pivotally supported and projects above the hanger, and the cam roller is pressurized by the movement of a carrier in contact with the cam roller. The inverted T-shaped hanger has a cam that tilts the inverted T-shaped hanger outward, and the inverted T-shaped hanger is made up of a horizontal support member having a receiving part that supports the lower surface of the automobile body fixed to the lower end of one hanger rod. Features.

Function In the loading/unloading section of the overhead conveyor, the cam presses the cam roller to open the inverted T-shaped hanger outward, moving in synchronization with the car body carried into the loading/unloading section by another conveyor. The inverted T-shaped hanger is closed, and then the automobile body is suspended while rising.

Embodiment The illustrated embodiment is an embodiment in which the hanger can also be tilted. Reference numeral 1 indicates a guide support rail for a drive chain of an overhead conveyor, and 2 indicates a carrier running rail provided below the rail. A guide roller 4 is provided on a vertical shaft suspended from the front and rear carriers 3a and 3b running on the carriers 2, and the front and rear ends of a primary hanger 5 in the form of a rectangular frame are suspended from the vertical shaft so as to be freely rotatable horizontally. , two pairs of protruding shafts 6 are fixed to the outside of the primary hanger 5.

The secondary hanger 7 connects the upper part of two pairs of front and rear hanging rods 8 that are in contact with the outside of the protruding shaft 6 and the primary hanger 5 with a vertical member 9.
The left and right hanging rods 8 are connected by a horizontal member 10, and rollers for horizontally maintaining the front and rear of the secondary hanger 7 are installed on the inside of the upper end of the front hanging rod 8 and on the outside of the upper end of the rear hanging rod 8. 11a and 11b are respectively pivotally supported, and suspension fittings 12 that cover the upper surface of the projecting shaft 6 together with the hanging rod 8 are fixed to the lower surfaces of both ends of the vertical member 9, and a vertical pin hole 13 is provided in the center of the horizontal member 10. Rollers 11a, 11b
are fitted into horizontal holding rails 14a or 14b made of channel material provided on the downward slope portion and the upward slope portion of the rail 2, respectively, and in the upward slope portion of the rail 3, by the front and rear abutment shafts 6 and the rollers 11b,
Also, in the downward slope section, the rear protrusion shaft 6 and the roller 11a
This holds the secondary hanger 7 in a horizontal position.

The tertiary hanger 15 has a pair of horizontal members 16 that are in contact with the front and rear outer surfaces of the horizontal member 10, and is joined by a vertical member 17, and a support member 18 that extends outwardly on both sides is fixed to the lower surface of one of the horizontal members 16. The center of the horizontal member 16 is connected to the hole 13 of the horizontal member 10 with a pin 19 so as to be freely tiltable left and right, and a steady rest roller 20 is pivotally supported at both ends of the support member 18.

The opening/closing hanger 21 has holes 2 at both ends of the horizontal member 16.
Of the front and back opening/closing arms 24 made of channel material which are rotatably pivotally attached to the pin 23 on the same side, the vertical members 25 are connected to each other by a vertical member 25.
A hanger rod 28 of an inverted T-shaped hanger 27 is fixed to the hanger rod 28 through a mounting member 26, and a receiving part 30 is fixed to both ends of a vertical horizontal support member 29 fixed to the lower end of the hanger rod 28 so as to protrude inward. hanger rod 2
A stopper 31 having an adjustment screw is provided on the opening/closing arm 24 so that the opening/closing arm 24 does not tilt inward from a position at right angles to the horizontal member 16, and the receiving part 30 holds the automobile body S from the left and right sides.

In the holding state, the hanger rod 28 substantially coincides with the position of the center pillar of the body S, and supports the body S at a position close to the longitudinal position of the center of gravity of the body.

A round groove-shaped cam roller 33 whose rotational axis intersects with the center line of the pin 19 is pivotally supported by support fittings 32 which are provided on the mounting members 26 on both sides and protrude obliquely upward.

In a transfer section in which the body S is kept horizontal while being transferred, the steady rest rollers 20 are guided by the fixed rails 34 to prevent the tertiary hanger 15 from tilting and to hold the body S in a horizontal position. In the work area where the body S is tilted, the steady rest rail 34 is omitted, and a tilting cam 35 that contacts the upper side of the cam roller 33 on one side is fixed to a fixed member over the front and back of the area. Pin 19 with the height facing the transfer direction.
The height gradually decreases to a predetermined height along an arc centered at
Next, the horizontal tilting of the hanger 7 is prevented. As a result, the cam roller 33 is pushed down as it moves, and the tertiary hanger 15 and the hanger rod 28 are tilted while supporting the body S (the position indicated by the dashed line in FIG. 2).

At the loading/unloading part of the body S, an opening/closing cam 37 is provided that contacts the lower side of the cam rollers 33 on both sides.
Similar to the tilting cam 35, as it moves, the cam roller 33 is pushed up and the hanger rod 28 is opened outward.

When the body S is not tilted, the rollers 20 and the fixed rails 34 are unnecessary, and the tertiary hanger 15 is fixed to the secondary hanger 7 instead of the pivoting structure using the pin 19. Furthermore, if it is not necessary to hold the secondary hanger 7 horizontally, the secondary hanger 7 and the protruding shaft 6 may be omitted and the tertiary hanger 15 may be directly fixed to the primary hanger 5, or the tertiary hanger 15 may be fixed horizontally to the primary hanger 5. It is obvious that the member 16 may be fixed and pivoted to the opening/closing hanger 21.

Effects of the invention In this invention, since the hanger rods 28, one each on the left and right, support the body S at a position close to the center pillar, the hanger rods 28 do not interfere with body assembly.
In addition to improving assembly work efficiency, the hanger rod 28 can be made of a relatively thin material because there is no torsional moment that the hanger rod 28 receives due to the weight of the body when tilting sideways. This has the effect of making assembly easier and improving assembly work efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an elevational view of the transfer device, FIG. 2 is a side view, FIG. 3, FIG.
5 and 6 are perspective views of a primary hanger, a secondary hanger, a tertiary hanger, and an open/close hanger, respectively. S...Car body, 2...Rail, 3a, 3
b...Carrier, 5...Primary hanger, 15...
Tertiary hanger, 21...Opening/closing hanger, 27...
Inverted T-shaped hanger, 28... Hanger rod, 29...
Horizontal support member, 30...receptacle, 33...cam roller, 37...cam.

Claims (1)

[Scope of utility model registration request] In an overhead conveyor for transporting automobile bodies, there is a primary hanger whose front and rear ends are horizontally rotatably connected to a carrier running on a rail, and a left and right hanger that is pivoted on both sides of the primary hanger so that it can be opened and closed only outwardly. An opening/closing hanger comprising a pair of inverted T-shaped hangers, a cam roller projecting above the hangers and supported by a shaft, and a cam that presses the cam rollers by moving a carrier in contact with the cam rollers to tilt the inverted T-shaped hangers outward. A hanger device for a transfer device, characterized in that the inverted T-shaped hanger is formed by fixing to the lower end of one hanger rod a horizontal support member having a receiving portion for supporting the lower surface of an automobile body.