JPH0442254Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a floating prevention device in a trolley conveyor for preventing objects placed on hangers of the trolley conveyor from floating.

[Conventional technology]

An object placed on a hanger is prevented from floating due to its own weight, but for example, during transportation, the object is placed in a liquid tank together with the hanger and subjected to treatment such as washing or electrocoating. During this process, objects may float due to buoyancy or the like, and therefore it is necessary to provide a device to prevent the objects from floating.

As a device for preventing floating, the inventor of the present application considered a device having the following configuration.

That is, a holding member that prevents an object placed on a hanger from floating up is pivotally supported on the hanger so as to be able to freely switch between an operating position and a release position, and a swinging member that prevents an object from floating up to the holding member is pivoted to the hanger. The operating tool is
The operation tool is pivotally supported by the hanger, and the operating tool is provided with a shaft-like member for locking, and the presser member has an elongated hole-shaped engagement member into which the shaft-like member is slidably engaged. A hole is formed, and the holding member is swung while the shaft-like member is slid within the insertion hole as the operating tool is swung.

Incidentally, in the floating prevention device having the above configuration, the length of the engagement hole is formed to be the same or approximately the same as the sliding stroke of the shaft-shaped member, and the length of the engagement hole is larger than the sliding stroke. It is desirable to avoid the disadvantage of forming a presser member, that is, the disadvantage of reducing the strength of the presser member.

[Problem that the invention attempts to solve]

However, if the length of the insertion hole is made to be the same or approximately the same as the sliding stroke of the shaft-like member, foreign matter that has entered the inside of the insertion hole may impede the sliding of the shaft-like member. Therefore, there is a possibility that the presser member cannot be swung appropriately, and there is room for improvement.

To be more specific, the reason why foreign matter enters the entry hole is that when the product is immersed in a liquid tank for cleaning or painting as described above, foreign matter that gets mixed into the liquid enters the entry hole. This can be considered as the main cause. Most of the foreign matter that has entered is pushed out of the insertion hole as the shaft-like member slides, but some foreign matter slides into the end of the insertion hole and the end side thereof. There is a risk that the shaft member may remain caught between the shaft member and the shaft member that has moved, and this will hinder the sliding movement of the shaft member.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to prevent the sliding of the shaft-shaped member due to foreign objects while avoiding the reduction in strength of the holding member as much as possible through simple modification. The goal is to prevent interference from occurring.

[Means for solving problems]

A characteristic configuration of the floating prevention device for a trolley conveyor according to the present invention is that a foreign matter discharge groove having a width smaller than the width of the insertion hole formed in the holding member pivotally supported by the hanger is located at the end of the insertion hole. The function and effect are as follows.

[Effect]

In other words, the foreign matter remaining between the end of the insertion hole and the shaft-like member that has slid toward that end can be pushed out into the foreign matter discharge groove by the shaft-like member. The member can be slid accurately with a desired stroke.

It is undeniable that the strength of the holding member is reduced by the formation of the foreign matter discharge groove, but since the width of the foreign substance discharge groove is smaller than the width of the insertion hole, the strength of the holding member is reduced. Strength reduction can be avoided as much as possible.

[Effect of idea]

Therefore, by making a simple modification that only forms foreign matter discharge, it is possible to switch the presser member by accurately sliding the shaft member with a desired stroke while avoiding a decrease in the strength of the presser member as much as possible. The present invention has resulted in a floating prevention device for a trolley conveyor that can be operated appropriately and can be used satisfactorily even when immersed in a liquid bath for cleaning or painting.

〔Example〕

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

As shown in Figures 3 and 4, the trolley conveyor. supported by the guide rail 1, and
A drive chain 3 with a pusher 2 and four trolleys 5 supported by guide rails 4
and a hanger 6.

Of the four trolleys 5, two on the front side and two on the rear side are connected by a connecting rod 7, and two in the middle in the front and back direction are connected to a hanger 6.
and is configured such that the pusher 2 can engage with the trolley 5 on the frontmost side.

The hanger 6 includes an upper frame 6A, hanger arms 6B connected to both front and rear ends of the upper frame 6A, and front and rear hanger arms 6.
Reinforcement frame 6 constructed across the lower ends of B
It is composed of C as the main part.

Each of the front and rear hanger arms 6B is configured to have a U-shape when viewed in the front-rear direction, and each of the lower frame portions of each hanger arm 6B is provided with a pair of left and right positioning marks. A protrusion 8 is attached.

Such a trolley conveyor can be used for conveying various articles, but in this embodiment, it is used to convey an automobile body B placed on a rectangular underframe A.
The case of transporting will be explained. That is, in this embodiment, each of the underframe A and the automobile body B is treated as an object to be transported.
Note that the underframe A is engaged with the protrusion 8 and is prevented from moving in the front-rear direction and the lateral direction.

A floating prevention device E that prevents the underframe A from floating and a floating prevention device F that prevents the automobile body B from floating are attached to the hanger arm 6B on the rear side of the hanger 6. The floating prevention device E for frames will be explained.

As shown in FIGS. 1A and 2B, the floating prevention device E includes a plate-shaped base frame 9, a holding member 10 for preventing floating, and a swing-type operation for the holding member 10. The base frame 9 is attached by bolts to a mounting base 12 fixed to the hanger arm 6B.

The presser member 10 includes a presser acting portion on the distal end side and an operated portion on the base end side, and a longitudinally intermediate portion of the presser member 10 is pivotally fitted onto a pivot pin 13 attached to the base frame 9. It is designed so that it can be switched between an operating position and a release position by its swinging. However, U ₁ and U ₂ in the figure are receiving parts for regulating the swing range formed on the base frame 9, and act to receive the square shaft-shaped protrusion 14 attached to the back of the presser member 10. It's becoming like that.

The operating tool 11 is formed in a trifurcated shape, and the mounting pin 15 attached to the base of the trifurcate is
It is rotatably inserted into a cylindrical member 16 attached to the base frame 9, so that it can swing. A handle portion 17 for being operated is attached to the arm portions at both ends of the three arm portions.

A shaft-shaped portion 18 for locking the presser member 10 is attached to the central arm portion of the operating tool 11.
In addition, an elongated insertion hole 19 into which the shaft-like member 18 is slidably inserted is formed in the operated portion on the proximal end side of the holding member 10. As the operating tool 11 is swung, the presser member 10 is switched between an operating position and a release position.

To explain the sliding movement of the shaft member 18 accompanying the switching, the shaft member 18 is in the engagement hole 1 in each of the operating position and the release position of the presser member 10
It is located at an end (hereinafter referred to as a first end) corresponding to the proximal end side of the holding member 10 of both ends of the holding member 9 .

Then, as the operating tool 11 is swung, the shaft-like member 18 moves to the end corresponding to the center side of the presser member 10 (hereinafter referred to as the second
After moving once toward the end (referred to as the end),
It will move back toward the first end side again.

Further, a foreign matter discharge groove 20 having a width smaller than the width of the insertion hole 19 is provided in the holding member 10 .
When the presser member 10 is switched, the shaft-like member 18 is moved toward the second end of the insertion hole 19. It is designed to be able to perform well regardless of foreign matter entering the interior.

Incidentally, a foreign matter discharge groove may be formed that is connected to the first end of the insertion hole 19, but since the shaft-shaped member 18 is normally located at the first end of the insertion hole 19, the shaft-shaped member It is extremely rare for foreign matter to be caught between the member 18 and the first end of the insertion hole 19, and there is no particular need for this.

In addition, the part where it is particularly necessary to prevent floating is the conveyance path part that is immersed in the liquid tank for cleaning or painting, so generally, the holding member 10 is moved to the active position immediately before entering the liquid tank. It is often used in a form in which the presser member 10 is switched to the release position immediately after the liquid is removed from the liquid tank. The switching operation is often performed automatically. In other words, for example, a push tool 21 for switching to the active position is provided in front of the liquid tank, and a push tool 22 for switching to the release position is provided immediately after the liquid tank.
The hanger 6 is temporarily stopped at the location where the push tool is attached, and the push tools 21 and 22 are installed.
will be driven in and out using a fluid pressure cylinder or the like.

[Another example]

In the above embodiment, the present invention is applied to preventing the underframe A on which the automobile body B is placed from floating, but it goes without saying that the present invention can also be applied to preventing the automobile body B from floating. Of course, this can also be applied to the case where the automobile body B is transported without using the underframe A.

In the above-described embodiment, the shaft-like member 18 reciprocates within the insertion hole 19 when switching the presser member 10 between the operating position and the release position. The member 18 may be located at one end of the insertion hole 19, and the shaft member 18 may be located at the other end of the insertion hole 19 when the presser member 10 is in the released position.

In the above-described embodiment, the inner surface S of the second end of the insertion hole 19 is formed in an arc shape, but as shown in FIG. 5, it may be formed in an inclined linear shape. . Further, as shown in FIG. 6, the cross-sectional shape of the foreign matter discharge groove 20 may be formed into a mountain shape with the inner surface T protruding inward.

In addition to being used for transporting the automobile body B, the present invention can be applied to transporting various other articles, and the specific configuration of each part can be modified in various ways according to the objects to be transported.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the floating prevention device for a trolley conveyor according to the present invention, and FIGS. 1A and 2B are front views of the floating prevention device, and FIG. 2 is a partially cutaway side view of the floating prevention device. 3 is a side view of the trolley conveyor, FIG. 4 is a rear view thereof, FIG. 5 is a front view of another embodiment, and FIG. 6 is a sectional view of another embodiment. 6...hanger, 10...pressing member, 11...
Operating tool, 18... Shaft-shaped member, 19... Engagement hole, 2
0... Foreign matter discharge groove.

Claims (1)

[Scope of utility model registration request] A holding member 10 that prevents floating of the conveyed object placed on the hanger 6 is pivotally supported on the hanger 6 so as to be able to swing freely between an operating position and a release position, and also swings relative to the holding member 10. Expression operating tool 1
1 is pivotally supported on the hanger 6, and the operating tool 1
1 is provided with a shaft-like member 18 for locking, and the holding member 10 is formed with an elongated engagement hole 19 into which the shaft-like member 18 is slidably engaged. A floating prevention device for a trolley conveyor, in which a foreign matter discharge groove 20 having a width smaller than the width of the insertion hole 19 is formed in the holding member 10 so as to be continuous with an end of the insertion hole 19. Anti-floating device for trolley conveyors.