JPH0464508A - Hanging/carrying way for motorcycle and hanging/ carrying device - Google Patents

Abstract

PURPOSE:To make it possible to stably support and correctly position a body frame by supporting a bracket attached to the body frame by means of a hanging arm superposed on a carrying hanger, and positioning the frame based on the bracket. CONSTITUTION:Front hanging rods 28f,28f are attached to the bottom ends of front hanging arms 22f,22f, and an interval between the right and left slide base plates 20,20 is adjusted by an opening closing motor 24. Next, V block bodies 48,48 and 43,43 of front and rear rods 28f,28f and 28r,28r are respectively moved to hanging positions of front and rear brackets 45,45 and 38,38, and V channels 481,431 of the block bodies 48,48:43,43 are respectively made to engage with pins to be locked 49,39 of the corresponding brackets 45,45: 38,38. For this purpose, a body frame F is hung and supported on a carrying hanger H of an overhead conveyer C in a stable condition. Thereafter, the frame F is separated from the hanger H, the positioning pin 40 of an automatic machine is inserted into a positioning hole 411, and the frame F is precisely positioned for the sake of automatic assembly.

Description

Detailed Description of the Invention A0 Object of the Invention (1) Industrial Application Field The present invention relates to a method for suspending and transporting a body frame on an overhead conveyor in a motorcycle assembly line, etc., and a method for directly carrying out the method. Regarding the equipment used.

(2) Conventional technology Conventionally, when a vehicle body frame is transported by an overhead conveyor on a motorcycle assembly line, etc., both ends of two bars inserted in the front 8 and rear side of the vehicle body frame in the left-right direction are suspended from the overhead conveyor. It is supported and transported by the lower ends of four hanging arms.

(3) Problems to be Solved by the Invention However, with the above-mentioned conventional transportation method in which two bars are inserted through the vehicle body frame and suspended, it is difficult to support the vehicle body frame in a stable state. Furthermore, it is not possible to accurately position the body frame, which is an obstacle to the continued automation of assembly lines.

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a method and device for suspending and transporting a motorcycle, which enables stable support and accurate positioning of a vehicle body frame.

B1 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention supports a body frame of a motorcycle on a hanging arm vertically installed on a conveyor hanger of an overhead conveyor. The assembly is carried out in a suspension transport method for a motorcycle that is transported between stations, in which a removable bracket attached to the body frame is locked to the suspension arm and the body frame is transported, and the assembly is carried out at the station. A first feature is that after the vehicle body frame is removed from the transport hanger, the vehicle body frame is positioned via the bracket.

The present invention also provides a suspension conveyor for a motorcycle in which the body frame of the motorcycle is supported on a hanging arm vertically installed on a conveyor hanger of an overhead conveyor, and a plurality of assemblies are carried between stations. a locked part that is removably attached to the bracket and that can be engaged with a locking member provided on the hanging arm;
A second feature of the assembly is that a positioning hole is formed that can be engaged with a positioning pin provided at the station.

(2) Effect According to the first feature of the present invention described above, by attaching a bracket to the body frame of the motorcycle in advance and locking this bracket to a hanging arm hanging from a transport hanger, The vehicle body frame is suspended and supported in a stable state. Further, at the assembly station, the vehicle body frame separated from the transport hanger is positioned using a bracket provided on the vehicle body frame to facilitate assembly work. When the assembly to the vehicle body frame is completed, the bracket that is no longer needed is removed from the vehicle body frame.

According to the second feature of the present invention, when performing the above action, the vehicle body frame is transported by engaging the locking member provided on the hanging arm with the locked portion of the bracket provided on the vehicle body frame. It is suspended and supported by a hanger. Furthermore, during assembly, the vehicle body frame is positioned by engaging positioning pins provided at the station with positioning holes in the bracket.

(3) Examples Hereinafter, the present invention will be explained in detail with reference to the drawings.

1st I! l-Figure 7 shows an embodiment of the present invention,
Figure 1 is an overall side view of the conveyance device, Figure 2 is a sectional view taken along the line ■-n in Figure 1, Figure 3 is a sectional view taken along the line ■-■ in Figure 1, and Figure 4 is a sectional view taken along the line ■--■ in Figure 2. ■Direction arrow sectional view, Figure 5 is V in Figure 4
-VS#r side view, FIG. 6 is an enlarged view of the main part of FIG. 1, and FIG. 7 is a sectional view taken along the line ■--■ in FIG. 6.

As shown in FIGS. 1 to 3, the overhead conveyor C includes a running rail 2 with an I-shaped cross section supported by an L-shaped support arm 1 on the ceiling surface.

At the upper ends of a pair of support members 4.5 provided at both front and rear ends of the primary hanger 3 constituting the upper half of the transport hanger H, a drive wheel 6 and a free wheel 7 that engage with the upper edge of the traveling rail 2 are mounted. The transport hanger H travels along the traveling rail 2 by transmitting the driving force of the traveling motor 8 provided on one of the supporting members 4 to the drive wheels 6 via the reducer 9 . At this time, in order to prevent the conveyance hanger H from swinging, a pair of left and right auxiliary rollers 10.10 provided on the upper surface of the next hanger 3 pinch the lower edge of the running rail 2 from the left and right, and the second hanger 3 Auxiliary rollers 12, 12 provided at the tips of support rods 11.11 protruding on both left and right sides engage guide rails 13.13 disposed parallel to the running rail 2.

A secondary hanger 15 having a ring gear 14 fixed to its upper surface is supported on the lower surface of the primary hanger 3 via a rotating shaft 16, and a pinion 18 of a rotation motor I7 provided on the secondary hanger 3 is meshed with the ring gear 14. As a result, the secondary hanger 15 is rotationally driven around the rotation axis 16 with respect to the primary hanger 3.

Sliders 21 provided on the upper surfaces of left and right slide boards 20.20 are slidably engaged with a pair of guide rails 19.19 provided on the lower surface of the secondary hanger 15 so as to be orthogonal to the traveling rail 2. . Left and right slide base #Ji20,2
There are front suspension arms 22f at both front and rear ends of the 0.
, 22f and the rear hanging arms 22r, 22r are vertically installed and connected to each other by reinforcing brackets 23, 23. The pole screw 26 is driven by the opening/closing motor 24 provided on the lower surface of the secondary hanger 15 via the reducer 25, and the left and right slide bases #! Screw into the pole nut 27.27 fixed on the bottom surface of i20.20. Therefore, when the opening/closing motor 24 is driven, the pole nuts 27.27 are moved by the pole screw 26, and the left and right slide boards 20.2
0 are driven toward and away from each other along guide rails 19,19.

At the lower ends of the aforementioned front suspension arms 22f, 22f and rear suspension arms 22r, 22r, there are front suspension rods 28f, 28f and rear suspension rod 28r for suspending and supporting the body frame F of the motorcycle. , 28r
is detachably attached via a locking mechanism. FIG. 4 shows the structure of the locking mechanism, in which a roughly cylindrical inner cylinder 29 is fitted into the lower end of the pipe-shaped rear hanging arm 22r, and their flange parts are integrally connected with bolts 30. Ru. A bottomed cylindrical camp body 31 is loosely fitted between the small diameter portion 29 formed at the upper end of the inner cylinder 29 and the inner surface of the rear suspension arm 22r so as to be movable up and down, and is biased downward by a spring 50. Ru. Ball holes 29 penetrating in the radial direction are provided at multiple locations in the circumferential direction of the small diameter portion 291 of the inner cylinder 29.
□ is formed, and the pole 32 fits loosely inside the square. A notch 31. is provided at the lower edge of the middle flap body 31 located outside the ball hole 29□ to allow the pole 32 to move outward. is formed.

On the other hand, the upper end of the hanging rod 28r is attached to the upper end of the hanging arm 22r. The coupling shaft 33 that fits into J29 is fixed. The outer peripheral surface of the coupling shaft 33 has a chamfered portion 33. is formed, and relative rotation between the hanging arm 22r and the hanging port 7 door 28r is regulated in a state where they are connected. Connection shaft 3
A ball groove 33 □ is formed at the tip of 3 to lock the coupling shaft 33 so that it cannot be inserted or removed by engaging the ball 32 therein. Then, the ball groove 33t and the ball hole 2
9, the flange portion of the lower end of the coupling shaft 33 is provided with a collar 34 of a predetermined thickness that abuts the lower surface of the inner cylinder 29.
is fixed with bolts 35. Further, a sliding rod 36 is provided on the central axis of the coupling shaft 33 for pushing up the cap body 31 and releasing the lock of the coupling shaft 33 by the pole 32.
is inserted so that it can slide vertically.

As is clear from FIG. 5, the rear end of the main frame F1 of the motorcycle formed by press working of a steel plate has a flat mounting portion with two welded nuts 37 and 37 provided inside. be done.

A substantially pentagonal plate-shaped rear bracket 38 is removably attached to the outer surface of the attachment portion by two bolts 51.51 screwed into the welding pads 37.37.

A locking pin 39 having a small-diameter neck portion 391 is integrally welded to the side surface of the rear bracket 38, and a positioning hole 41 is provided at the bottom thereof into which a positioning pin 40 extending from an external automatic machine (not shown) is fitted. ．． A positioning member 41 having a shape formed thereon is welded.

On the other hand, on the inner surface of the lower end of the support member 42 fixed to the lower end of the hanging rod 28r with a bolt 52, the locked pin 3 is attached.
9 neck part 39. ■Groove 43 into which is fitted from above. (2) The block body 43 formed with is fixed with bolts 53. A lock release hole 42 is formed in the upper part of the support member 42 and passes through the support member 42 in the left and right direction. passes through it, and the lower end of the sliding rod 36 protrudes into the interior thereof. And an inclined surface 44 at the tip. When inserting the cutout member 44 formed with the above into the lock release hole 42□,
The sliding rod 36 is pushed upward to unlock the coupling shaft 33.

FIGS. 6 and 7 show a joint between the front suspension rod 28f that is detachably attached to the lower end of the front suspension arm 22f and the front bracket 45 that is detachably attached to the main frame F1. It is something.

The front bracket 45 is made of a trapezoidal plate and is detachably attached to the front side surfaces of the left and right main frames F1 via two bolts 46. A groove 481 is formed in the two bronze bodies 48 attached to the support member 47 provided at the lower end of the front suspension rod 28f, and this V groove 48
．． The locked pin 49 is welded to the front bracket 45.
Neck part 49. is engaged. At this time, as is clear from FIG. 3, the front bracket 45 is replaced by the rear bracket 3.
Compared to 8, it is installed on the outside of the vehicle center line, so
The two block bodies 48 of the front suspension rod 28f are formed to have a shorter length in the left-right direction than the block body 43 of the rear suspension rod 28r. The structures of the front suspension arm 22f and the rear suspension arm 22r are the same, and the difference between the front suspension rod 28f and the rear suspension rod 28r is that
Since the only difference other than the width is the length in the vertical direction, a redundant explanation thereof will be omitted.

Next, the operation of the embodiment of the present invention having the above-described configuration will be explained.

A pair of left and right rear brackets 38, 38 and a pair of left and right front brackets 45, 45 are attached in advance to the body frame F of the motorcycle that is transported by the transport hanger H of the overhead conveyor C.

On the other hand, each hanging arm 22f of the transport hanger H.

22f; 22r, 22r have a large number of front suspension rods 28f... and rear suspension rods 28 prepared in advance.
r..., two front suspension rods 28f, 28f corresponding to the shape and dimensions of the vehicle body frame F, and two rear suspension rods 28r, 28r are selected and installed. Ru. At that time, for example, to attach the rear suspension rod 28r, insert the wedge member 44 into the lock release hole 42° of the support member 42, and insert the wedge member 44 into the inclined surface 4 at the tip.
At 4 degrees, the sliding loft 36 is pushed upward to protrude from the upper end of the coupling shaft 33. Next, the rear hanging rod 2
8r connecting shaft 33 to the inner cylinder 2 of the rear suspension arm 28r.
9 from below, the cap body 31 pressed against the upper end of the sliding rod 36 rises against the spring 50, and the notch 311 is inserted into the outer surface of the ball hole 29z formed in the inner cylinder 29. opposite. As a result, the ball 32 loosely fitted into the ball hole 292 of the inner cylinder 29 is pressed by the tip of the coupling shaft 33 and moves outward, and the coupling shaft 33 is moved to the collar 34.
is inserted to the position shown in FIG. 4 where it abuts the lower surface of the inner cylinder 29. When the wedge member 44 is pulled out from this state, the cap body 31 biased by the spring 50 comes down, and its notch 3
1. The ball 32 is moved inward on the inner wall surface connected to the upper part of the ball. As a result, the ball 32 is forcibly engaged with the ball groove 33□ of the coupling shaft 33, and the coupling shaft 33, that is, the rear suspension rod 28r, is locked so that it cannot be inserted into or removed from the rear suspension arm 22r.

As described above, the two rear suspension rods 28r, 2
8r is attached, the two front suspension rods 28f and 28f are connected to the front suspension arm 22f by the same procedure.
, 22f. Next, the opening/closing motor 24
By driving and adjusting the distance between the left and right slide boards 20.20, the rear suspension rods 28r and 28r's block body 43.43 and the front suspension rod 28f2 are
Move the 8f ■block bodies 48, 48 to a position where the rear bracket 38, 38 and front bracket 45°45 can be hung, respectively, and remove the ■block bodies 43, 43;
4B, 4B ■groove 43I.

481 are respectively engaged with the locked pins 39, 49 of the corresponding brackets 38, 38; 45° 45. As a result, the body frame F of the motorcycle is suspended and supported by the transport hanger H of the overhead conveyor C in a stable state.

By driving the running motor 8, the transport rail 2 that supports the body frame F of the motorcycle is moved to the running rail 2.
, and stops at stage 5 for predetermined assembly. For assembly, the rotation motor 17 is driven as necessary at the station to rotate the suspended body frame F to a predetermined posture. After rotating the secondary hanger 15 with respect to the primary hanger 3, the vehicle body frame F is removed from the transport hanger H. Next, the positioning bin 40 of the automatic machine is inserted into the positioning hole 41 of the rear bracket 38. , and the vehicle body frame F is precisely positioned for automatic assembly. In this way, while the vehicle body frames F are sequentially conveyed by the overhead conveyor C, a plurality of assemblies are performed by positioning the vehicle body frames F at the stage and assembling various parts. Then, when the assembly work is completed, the rear bracket 3 that is no longer needed is attached to the vehicle body frame F.
8.38 and front bracket 45.45 are removed.

When the shape and dimensions of the vehicle body frame F to be transported are changed, the rear suspension rods 28r, 28r and the front suspension rods 28f, q corresponding to the new vehicle body frame F are changed.
In order to install the 8f, the rear hanging rods 28r, 28r and the front hanging rod 28f, which had been installed until then,
28f is removed. At that time, for example, in order to remove the rear suspension rod 28r, the lock release hole 42 of the support member 42. The dummy member 44 is inserted to push up the sliding rod 36 and the cap body 31. Thereby, the notch 31 of the cap body 31. is the ball hole 29. Since the ball 32 is in a state where it can freely move outward facing the ball 32, the lock of the coupling shaft 33 by the ball 32 is released and the rear hanging loft 28r
, 28r can be pulled out downward. The front suspension rods 28f, 28f are also pulled out in the same manner, and then the new rear suspension rods 28r, 28r and the front suspension rods 28f, 28 are removed as described above.
f is attached.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various small design changes can be made without departing from the scope of the invention described in the claims. Is possible.

For example, in the embodiment, the vehicle body frame F is supported via the hanging rods 28f and 28r attached to the hanging arms 22f and 22r.
The vehicle body frame F may be directly supported on 22r. Also,
Rear bracket 38° 3 days and front bracket 45.45
It is preferable to attach the bracket 38 by using the attachment parts of various parts formed on the vehicle body frame F.
45.45 may be formed.

C4 Effects of the Invention As described above, according to the first feature of the present invention, a bracket is detachably attached to the body frame of a motorcycle, and the bracket is supported by a hanging arm suspended from a transport hanger. Therefore, the vehicle body frame can be reliably suspended and supported in a stable state. Further, since the vehicle body frame is positioned using the bracket as a positioning reference member, automatic assembly in an assembly station run is possible. Furthermore, since the bracket can be removed after the assembly work is completed, the appearance of the motorcycle will not be affected.

According to the second feature of the present invention, in addition to the above-mentioned effects, the vehicle body frame can be reliably suspended and supported by the locking member provided on the hanging arm and the locked portion formed on the bracket. . Further, during assembly, the vehicle body frame can be accurately positioned with a simple structure using positioning pins provided at the station and positioning holes formed in the bracket.

[Brief explanation of the drawing]

Figures 1 to 7 show one embodiment of the present invention.
The figure is an overall side view of the conveyance device, and Figure 2 is the ■- of Figure 1.
3 is a sectional view taken along the line ■--■ in FIG. 1, FIG. 4 is a sectional view taken in the ■ direction of FIG.
Line sectional view, Fig. 6 is an enlarged view of the main part of Fig. 1, Fig. 7 is an enlarged view of the main part of Fig. 6
It is a sectional view taken along the line ■-■ in the figure. 22f, 22r... Hanging arm, 38... Bracket, 39... Locked bin (locked part), 40...
・Positioning bin, 411...Positioning hole, 43...
■Block body (locking member), 45...Bracket, 4
8... V block body (locking member), 49... Locked pin (locked part), C... Overhead conveyor, F... Vehicle body frame, H... Conveyance hanger

Claims (1)

[Claims] [1] Conveyance hanger (H) of overhead conveyor (C)
), in which a motorcycle body frame (F) is supported by suspension arms (22f, 22r) vertically disposed on suspension arms (22f, 22r) and transported between a plurality of assembly stations, the motorcycle body frame (F) The removable brackets (38, 45) attached to the hanging arms (22f, 22
r) to transport the vehicle body frame (F), and at the same time, the vehicle body frame (F) is transported at the assembly station.
) is removed from the transport hanger (H), and then the body frame (F) is positioned via the brackets (38, 45). [2] Conveyance hanger (H) of overhead conveyor (C)
) In a suspension transport device for a motorcycle that supports the body frame (F) of a motorcycle on suspension arms (22f, 22r) vertically installed on a suspension arm (22f, 22r) and transports the body frame (F) between multiple assembly stations, The bracket (38, 45) is detachably attached, and the locking member (4) provided on the hanging arm (22f, 22r) is attached to the bracket (38, 45).
3, 48) and a positioning hole (41_1) that can be engaged with a positioning pin (40) provided at the assembly station. , suspension conveyance device for motorcycles.