JPH052384Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a trolley that runs on divided rails and is used for suspending and moving dies for manufacturing plastic film products.

(Conventional technology) Conventionally, two-wheeled carts were used for one rail, and four-wheeled carts were used for two rails.
When a trolley moves on widely divided rails, a separate swing-type connecting rail with an opening/closing mechanism, interlock, etc. is used.

Next, to explain the conventional trolley, first of all,
~ In the case where the four-wheeled trolley 1 with the die 2 suspended runs on the rails 4a and 4b divided by the opening/closing door 9 in the D direction in Fig. 5, after opening the opening/closing door 9, the The air cylinder 5 was used to accurately connect and move the connecting rail 6.

In this case, the running position of the bogie 1 is detected by a limit switch (not shown) or the like, which is linked to the air cylinder 5, or by a lock device (not shown) that stops the bogie 1 if the connecting rail 6 is not connected correctly. Measures were taken to prevent wheel 3 from falling off. In addition, in the figure, 10 is a hook for suspending the die 2, 7 is a rail frame, 8 is a frame support,
A is the rail division space required for opening and closing the opening/closing door 9.

(Problems to be solved by the invention) In conventional wheeled carts, falling wheels can lead to human accidents and damage to expensive dies, so a connecting rail device with greater strength and safety than necessary is required. Ta. However, this device has problems such as being complicated, prone to failure, and expensive. The present invention attempts to solve these problems.

(Means for Solving the Problems) Therefore, the present invention aims to reduce the number of wheels to four in a bogie with wheels that runs on one or more divided rails having a wide space c. In addition to the above, the mounting pitch d of the wheel is configured such that d>c is larger than the space c, and this is used as a means for solving the problem.

(Function) By setting the number of wheels on the bogie to 4 or more, and setting the relationship between the wheel mounting pitch d and the rail dividing space c as d>c, the rail can be divided regardless of the rail dividing width. It is possible to run on the divided rails without the wheels falling into the divided space without placing a connecting rail or the like in the space.

(Embodiments) The present invention will be described below with reference to embodiments of the drawings. FIGS. 1 to 3 show embodiments of the present invention. In addition, in FIGS. 1 to 3, the same parts as in the conventional FIGS. 4 to 6 are indicated by the same reference numerals. In FIG. 1, the die 2 for producing the original plastic film is suspended on a trolley 21 because it needs to be blocked from dust from the outside during operation and needs to be moved to a washing room f for cleaning and repair. It moves back and forth on rails 14a and 14b that are lowered and divided by a partition door 9.

Next, in FIGS. 2 and 3, when the partition door 9 is opened and the trolley 21 is moved from the driver's cab l to the cleaning room f, the wheels 1 are placed in the opening/closing space c of the partition door 9.
It is necessary to prevent 3a from falling off. The present invention was made as a means for the bogie 21 to move back and forth easily and inexpensively in the space c between the widely divided rails.
1 and 3 show the case of a six-wheeled truck 31, in which the wheels 13a to 13d are each mounted at a mounting pitch d.

Also, the center of gravity G of the truck is the center of the truck, and d
>c, the wheel 13a is space c
Even if the wheels 13b to 13d are on the rail 14a,
When the wheel 13b moves to the space c, the wheels 13a, 13c, and 13d are on the rail, so the trolley 21 may fall off the rail.
It never tilts. In addition, since the load of the die 2 and the trolley 21 is supported by the wheels 13a and 13d,
The wheels 13b and 13c serve only to prevent the cart from falling off in the divided space c of the rail, and can be simplified and downsized, which is further advantageous in terms of cost. Furthermore, in the case of a single rail, similar effects can be obtained by mounting at least four or more wheels at the mounting pitch d.

(Effects of the invention) As explained in detail above, the present invention increases the number of wheels on the trolley to four or more, and sets the mounting pitch d of the wheels so that d>c, which is larger than the divided space c of the rail. By configuring it with
Regardless of the width of the divided rails, and without placing a bogie support rail in the divided space,
It is possible to run on the divided rail without the wheels falling into the divided space. Therefore, conventional connecting rails, complicated mechanisms for moving the rails, and safety devices can be eliminated, reducing costs, improving safety, and eliminating the need for maintenance.

[Brief explanation of drawings]

FIG. 1 is a side view of a truck showing an embodiment of the present invention;
Fig. 2 is a plan view of the same, Fig. 3 is a plan view of another embodiment of the present invention, Figs. 4 to 6 are conventional examples in which the divided sections of the rail are connected by swing type rails, and Fig. 4 is a side view. , FIG. 5 is a plan view, and FIG. 6 is a partial plan view when the swing type rail is connected. Explanation of main parts of the figure, 13a to 13d...wheels, 14a to 14d...divided rails, 2
1,31...Dolly.

Claims (1)

[Scope of utility model registration request] In a bogie with a vehicle that runs on wheels on one or more divided rails having a wide space c, the number of the wheels is four or more, and the mounting pitch d of the wheels is set to the space c. A bogie that runs on divided rails, characterized by being constructed with a larger relationship d>c.