JPH0686206B2 - Separation prevention structure for carrier traveling mechanism and loading mechanism - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a traveling mechanism having wheels traveling on a rail, and a loading mechanism located below the traveling mechanism for loading conveyed articles. The present invention relates to a structure for preventing separation of a traveling mechanism and a loading mechanism in a carrier.

2. Description of the Related Art Conventionally, the carrier as described in Japanese Utility Model Laid-Open Publication No. 1-30771 has a loading mechanism 12 for loading articles by bolts 13 and 13 as shown in FIGS. 9 and 10. The lower surface 15a of the driving side frame 15 of the traveling mechanism 14 and the driven side frame (not shown, but the actual structure is from the driving side frame to the speed reducer 16
The structure is such that the attached motor 17 is removed. ) And the bottom surface of. Then, the bolt 13 has a loading mechanism 12
Then, the weight of the article to be loaded on the loading mechanism 12 is applied as a tensile load.

However, with such a structure, vibration and traveling mechanism when traveling on the rail 10 due to long-term use of the carrier 11
Due to swaying of the bolt 12 and the like, the bolt 13 is loosened, and the bolt 13 is disengaged or broken, so that the traveling mechanism 12 and the traveling mechanism 14 are separated and fall. In order to deal with such a problem, it is necessary to make the bolts, the frame and the like structurally strong, but this causes an increase in weight, size and cost, which is not preferable. In addition, there remains a problem that the structure itself lacks security.

Means for Solving the Problems The present invention relates to a carrier comprising a traveling mechanism including wheels traveling on a rail, and a loading mechanism located below the traveling mechanism for loading an article to be conveyed. The loading mechanism has a through hole through which an axle that horizontally projects from a wheel protruding surface of the mechanism has a vertical piece that is provided to project orthogonally to the axle, and one surface of the vertical piece has the above-mentioned shape. The above problem is solved by the separation preventing structure, which is provided on the tip of the axle and faces the wheels, while the other surface faces the axle protruding surface.

To connect the working traveling mechanism and the loading mechanism, the axle is penetrated through the through hole of the vertical piece provided on the frame of the loading mechanism, and the wheel is attached to the tip of the axle.

Since the vertical piece penetrates the axle and the traveling mechanism is prevented from coming off by the wheels, separation of the traveling mechanism and the loading mechanism is prevented, and the carrier does not drop from the rail.

EXAMPLES Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 5, the carrier 20 is loaded with the articles W to be suspended and travels on the rail 10, and is composed of a traveling mechanism 21 and a loading mechanism 22.

The traveling mechanism 21 includes a driving-side traveling mechanism 31 and a driven-side traveling mechanism 32. Drive-side traveling mechanism 31 (Figs. 1 and 2
The figure shows a motor 34 with a reducer 33, and a drive wheel 36 mounted on the tip 35a of an axle 35 that projects horizontally from the reducer 33.
And have. Axle protruding surface 37 of frame 37 of reducer 33
A circular protrusion 38 is formed on a. The driven-side traveling mechanism 32 (FIG. 4) has driven wheels 41 provided at the tip 40a of the axle 40 that horizontally projects from the bearing frame 39. A circular protrusion 42 is formed on the axle protrusion surface 39a of the bearing frame 39. The drive wheels 36 and the driven wheels 41 are attached to the axles 35, 40 by attachment mechanisms 43, 43.

The loading mechanism 22 includes a driving-side frame 51 and a driven-side frame 52, which are connected by a conveyed object suspension bar 50 (FIG. 5).
have. Eight guide rollers 53 are provided on each of the frames 51 and 52 so that the upper and lower ends of the rail 10 are sandwiched from both sides. Furthermore, the drive-side frame 51 has a speed reducer.
A vertical piece 55 for mounting the 33 with the four bolts 54 is provided upright so as to face the axle protruding surface 37a. The vertical piece 55 is provided with a fitting hole 56 through which the axle 35 penetrates and into which the protrusion 38 is fitted. Similarly, a vertical piece 58 for mounting the bearing frame 39 with the four bolts 57 (only one is shown in FIG. 4) is also erected on the driven side frame 52 so as to face the axle protruding surface 39a. ing. The axle 40 penetrates the vertical piece 58,
Moreover, a fitting hole 59 into which the protrusion 42 is fitted is formed.
In such a structure, the carrier 20 travels on the rail 10 by the rotation of the drive wheels 36 due to the driving of the motor 34 and the decelerating rotation of the speed reducer 33, and conveys the conveyed object W.

The mounting position of the bolt 64 may be a horizontal projecting piece 66 formed horizontally at the upper edge of the vertical piece 65, as in the drive side frame 61 of the stacking mechanism 62 shown in FIG. In this case the protrusion
68 can be made longer, and the support of the axle 35 is stable. Since other structures are the same as those in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Further, as in the driving side frame 71 of the loading mechanism 72 shown in FIGS. 7 and 8, the vertical piece 75 is integrated with the motor 74 to reduce the speed.
The frame 77 and the drive side frame 71 are formed at positions facing each other apart from the axle protruding surface 77a of the frame 77.
They may be integrated with each other by 4,84. A through hole 76 is formed in the vertical piece 75.

Further, the protruding portion, the fitting hole, and the through hole are not limited to the circular shape, but may be a rectangular shape.

Therefore, by using the carrier 20 for a long time, the bolts 54,5
Even if 7,64,84 may loosen, vertical pieces 55,58,65,
Since 75 penetrates the axles 35 and 40 and the wheels 36 and 41 prevent the traveling mechanism from coming off, the traveling mechanism 21 and the loading mechanism 2
The separation of 2,62,72 is prevented, and it does not fall off the rail 10.

EFFECTS OF THE INVENTION According to the separation prevention structure of the present invention described above, one surface of the vertical piece projecting from the frame of the loading mechanism faces the axle protruding surface and the other surface of the vertical piece is attached to the wheel provided at the tip of the axle. Since they face each other, even if the vertical piece tries to come out of the axle due to slackening or cutting of the bolt, the vertical piece comes into contact with the axle protruding surface or the wheel to prevent the vertical piece from coming off, preventing separation of the traveling mechanism and the loading mechanism, and preventing the carrier. It will not fall off the rails.

[Brief description of drawings]

FIG. 1 is a front view of a drive portion of a carrier having a separation preventing structure according to an embodiment of the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is an exploded view of essential parts, and FIG. 4 is a carrier. 5 is a front view of a driven portion of the carrier, FIG. 5 is an overall side view of the carrier, FIG. 6 is a front view of a driving portion of the carrier having a separation preventing structure according to another embodiment of the present invention, and FIG. FIG. 8 is a front view of the drive portion of the carrier having the separation preventing structure of the embodiment, and FIG. 8 is a right side view of FIG. FIG. 9 is a front view of a driving portion of a conventional carrier, and FIG. 10 is a left side view of FIG. W …… Transported goods, 10 …… Rail 20 …… Carrier, 21 …… Traveling mechanism 22,62,72 …… Loading mechanism 35,40 …… Axle 35a, 40a …… Axle tip 36 …… Drive wheel (wheel) 37,77 …… Frame (frame of traveling mechanism) 37a, 39a, 77a …… Axle protruding surface 41 …… Driven wheel (wheel) 51,61,71 …… Drive side frame (frame of loading mechanism) 52 …… Following Side frame (frame of loading mechanism) 55,58,65,75 …… Vertical piece 56,59 …… Mating hole (through hole) 76 …… Through hole

Claims (1)

[Claims] 1. A carrier comprising a traveling mechanism having wheels traveling on a rail, and a loading mechanism located below the traveling mechanism for loading an article to be conveyed, wherein a wheel protruding surface of the traveling mechanism is provided. The loading mechanism has a through hole through which an axle protruding horizontally has a vertical piece projecting perpendicularly to the axle, and one surface of the vertical piece faces the axle protruding surface. The other surface is opposed to the wheel provided at the tip of the axle, and a structure for preventing separation of the carrier traveling mechanism and the loading mechanism.