JP7181656B1 - Coupling devices, roller conveyors and conveyor lines - Google Patents

Abstract

An object of the present invention is to provide a roller conveyor coupling device, a roller conveyor, and a conveyor line that facilitate adjustment of rollers and improve handling performance.
The present invention for solving the above problems includes a support portion 2 for rotatably supporting a roller 1 and a connecting portion 3, and the connecting portion 3 includes a first connecting portion 31 and a second connecting portion 32. , and the first connecting portion 31 and the second connecting portion 32 pass through the first hole 311 provided in the first connecting portion 31 and the second hole 321 provided in the second connecting portion at the same time. The first hole 311 is a coupling device X including an elongated hole portion 312 that slides with the coupling pin 4 inserted therethrough. Moreover, it is a roller conveyor Y and a conveyor line Z using it.
[Selection drawing] Fig. 1

Description

The present invention relates to a roller connecting device for connecting rollers placed on the ground and used at a predetermined interval, a roller conveyor using the roller connecting device, and a roller conveyor line provided by connecting the roller conveyors. .

In general, it is necessary to carry out loading and unloading operations when transporting cargo. This work requires a great deal of labor, but if the roller conveyor is properly installed to form a conveyor line, the work can be completed simply by sliding the load.
A roller conveyor used for such light work is preferably one that can be appropriately installed and used in various places.

JP 2018-95355 A

"Bend! Roller Conveyor [Connecting Maru]" [online] https://www.youtube.com/watch?v=L0n_-HvgddM http://www.e-monz.jp/89_522.html (February 2022) 18th)

On the other hand, in the roller conveyor of Non-Patent Document 1, in order to adjust the interval between the roller conveyors and the curvature of the conveyor line, it is necessary to remove the connection between the roller conveyors once, and it is difficult to make fine adjustments. there were.
In addition, the roller conveyor of Patent Document 1 can adjust the interval and curvature while the roller conveyor is connected. Force is applied to the end of the rod when adjusting the curvature. That is, since the rod is easily deformed with adjustment, there is a problem in terms of durability.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a roller conveyor coupling device, a roller conveyor, and a conveyor line that facilitate roller adjustment and improve handling performance. Handling performance also includes safety, stability, durability, and storability.

The present invention for solving the above problems includes a support portion that rotatably supports a roller and a connecting portion, the connecting portion has a first connecting portion and a second connecting portion, and the first The connecting portion and the second connecting portion are rotatable relative to each other via a connecting pin that simultaneously penetrates the first hole provided in the first connecting portion and the second hole provided in the second connecting portion. and the first hole includes an elongated hole through which the connecting pin slides.
With such a structure in which the connecting pin slides, it becomes possible to easily adjust the length and angle of the connecting device, and furthermore, it becomes possible to roll it into a small size and store it in a connected state. .

In a preferred embodiment of the present invention, at least one of the supporting portion and the connecting portion has a mounting surface to be mounted on the ground, and the elongated hole has a long axis parallel to the mounting surface. is provided.
Such a configuration makes it possible to intuitively change the length of the coupling device X with respect to the ground.

In a preferred embodiment of the present invention, at least one of the support portion and the connecting portion has a mounting surface to be placed on the ground, and the first hole includes a plurality of locking portions to which the connecting pins lock. including.
Such a configuration allows stepwise adjustment of the lengths of the connecting devices.

In a preferred embodiment of the present invention, the locking portion is provided as a notch extending from the elongated hole toward the mounting surface.
With such a configuration, when the connecting device is properly placed on the ground, it is possible to engage the connecting device using gravity, so that the connecting device can be easily adjusted.

In a preferred embodiment of the present invention, the second connecting portion is a flexible thin plate member, and the first connecting portion is sandwiched and connected between the opposing second connecting portions.
With such a configuration, it becomes difficult for the second connecting portion to be deformed and broken when the angle of the connecting device is adjusted, and the stability and durability of the connecting portion can be improved.

The present invention for solving the above problems is a roller conveyor in which the connecting devices are provided at both ends of the roller.
Such a configuration allows the coupling device to be applied to a roller conveyor.

In a preferred embodiment of the present invention, a conveyor line includes a plurality of the roller conveyors, and the roller conveyors are connected to each other by the first connecting portion and the second connecting portion.
With such a configuration, it is possible to easily adjust the length and angle of the conveyor line, and furthermore, it is possible to roll it into a small size and store it in a connected state.

The present invention, which solves the above problems, can provide a roller conveyor coupling device, a roller conveyor, and a conveyor line that facilitate adjustment of the roller conveyor and further improve handling performance.

1 is a perspective view of a roller conveyor according to an embodiment of the invention; FIG. 1 is a perspective view of a coupling device, according to an embodiment of the invention; FIG. Figures 4A-4D are various views of a coupling device, in accordance with an embodiment of the present invention; FIG. 4 is an explanatory diagram of connection of the connection device according to the embodiment of the present invention; FIG. 4 is a top view when the conveyor line is contracted according to the embodiment of the present invention; FIG. 4 is a top view when the conveyor line is expanded according to the embodiment of the present invention; FIG. 4 is a top view of the conveyor line at an angle, according to an embodiment of the present invention; FIG. 4 is a top view of the conveyor line at an additional angle, according to an embodiment of the present invention;

The connecting device X, the roller conveyor Y, and the conveyor line Z according to the present invention will be described below with reference to the drawings. The description will be made by describing the configuration of each embodiment and then detailing the implementation method.
In addition, each embodiment shown below is an example of this invention, and does not limit this invention to each following embodiment.

≪About the connecting device X≫
As shown in FIGS. 1 and 2, the connecting device X is composed of a supporting portion 2 that rotatably supports the roller 1 and two opposing connecting portions 3 protruding from the side surface of the supporting portion 2. It is a device made by
3A and 3B are views of the coupling device X viewed from various sides. More specifically, FIG. 3A is a plan view, FIG. 3B is a left side view, and FIG. ) is a front view, FIG. 3(d) is a right side view, and FIG. 3(e) is a bottom view. Note that the rear view is omitted because it has substantially the same shape as the front view.
Furthermore, FIG. 4 is a diagram showing how two connecting devices X are connected via a connecting pin 4. FIG. 4B shows a front view when the distance between the connection devices X is widened, and FIG. 4C shows a front view when the connection devices X are rotated relative to each other.

The roller 1 consists of a cylindrical rotating body 12 that rotates around a rod 11 with an article placed thereon. A bearing is fitted between the rod 11 and the rotating body 12 to generate friction. It is preferably reduced.

The rod 11 has a diameter of 5 mm to 20 mm and a length longer than the length of the rotor 12 by about 20 mm to 60 mm. The projecting portion penetrates into the support portion 2 and is supported. In addition, the projecting portion has a groove into which a C-shaped retaining ring, which will be described later, can be fitted.

The rotating body 12 is a cylindrical part supported by the rod 11 via a rotating support such as a bearing, and is made of metal such as stainless steel or plastic material such as vinyl chloride. It has enough rigidity to stably place a load.

The support portion 2 is a portion that rotatably supports the roller 1 at an appropriate position, and has a support hole 21 that supports the rod 11 and a support reinforcement portion 22 that reinforces the periphery of the support hole 21. .
Here, the bottom surface of the support portion 2 and the bottom surface of the connecting portion 3 are integrally formed as a flat mounting surface a, and the entire surface thereof is provided so as to be in contact with the horizontal ground.

The support hole 21 is a hole through which the rod 11 is inserted and supported. The inner diameter of the support hole 21 is substantially the same as or larger than the outer diameter of the rod 11 , and the height from the mounting surface a to the center of the support hole 21 is at least longer than the radius of the rotor 12 .
The rod 11 is inserted into the support hole 21 and fixed via a C-shaped retaining ring having an outer diameter larger than that of the support hole 21 .

The support reinforcement part 22 is a part provided around the support hole 21, around the part connected to the connecting part 3, and around the mounting surface a, where the molding material is increased compared to the surroundings. By increasing the thickness of these portions, the load from the roller 1 is reinforced and the durability is enhanced. In addition, it looks as if a recessed portion is formed in the support portion 2 by the support reinforcement portion 22 .

The connecting portion 3 is configured by a first connecting portion 31 projecting from the support portion 2 and a second connecting portion 32 projecting from the support portion 2 facing the first connecting portion 31 . The first connecting portion 31 and the second connecting portion 32 are connected by a connecting pin 4 that simultaneously penetrates a first hole 311 provided in the first connecting portion 31 and a second hole 321 provided in the second connecting portion 32. , are detachably connected.

As shown in FIG. 3(a), the first connecting portion 31 is a member integrally provided so as to protrude from the support portion 2 from the center in the thickness direction, and has a length of 40 mm to 80 mm and a height of 20 mm to 60 mm. , The thickness is assumed to be 2 to 8 mm, but it may be changed as appropriate depending on the cargo assumed to be transported.
Further, as shown in FIGS. 3A and 3C, in the portion where the first connecting portion 31 and the support portion 2 are joined, the height of the first connecting portion 31 from the mounting surface a is Although it is substantially the same as the portion 2, the height is reduced at a slightly spaced position, thereby increasing the surface area of the portion connected to the support portion 2 and increasing the strength.
In addition, the length of the first connecting portion 31 and the length of the second connecting portion 32 are substantially the same, and the end portion of the first connecting portion 31 is rounded. Thereby, interference between the end portion of the first connecting portion 31 and the root portion of the second connecting portion 32 can be prevented.

As shown in FIG. 3(c), the first hole 311 has an elongated hole portion 312 that allows the connecting pin 4 to slide in the longitudinal direction of the hole in a state in which the connecting pin 4 is engaged. This hole is integrally formed with a plurality of locking portions 313 . The locking portions 313 are arranged at equal intervals in the longitudinal direction of the long hole portion, and in this embodiment, three locking portions 313 form a comb-like hole.

The elongated hole portion 312 is a substantially rectangular hole, and its corners are rounded to match the shape of the peripheral surface of the connecting pin 4 . Also, the long axis of the elongated hole portion 312 is provided so as to be parallel to the mounting surface a, so that as shown in FIGS. Allows the relative length of X to be changed.
In addition, in FIG. 4, the broken line portion represents the portion of the first connecting portion 31 that cannot be visually recognized in the main body.

The locking portion 313 is a substantially half-moon shaped hole portion, and as shown in FIGS. Since the engaging portion 313 is provided in a direction from the long hole portion 312 toward the mounting surface a, a force is generated to press the connecting pin 4 by gravity when the connecting device X is mounted. As a result, the connecting pin 4 is locked without moving in the longitudinal direction.
In addition, in the present embodiment, the engaging portion 313 is provided vertically toward the mounting surface a, but may be provided with an inclination.

As shown in FIG. 3( a ), the second connecting portion 32 is a member that is provided so as to protrude from two opposite ends of the support portion 2 in the thickness direction. The thickness is assumed to be 20 mm to 40 mm, and the thickness is assumed to be 2 to 8 mm. A connection reinforcing portion 322 is provided.
In addition, the end of the second connecting portion 32 is rounded, and the distance from the end of the second connecting portion 32 to the second hole 321 is less than the distance from the first hole 311 to the support portion 2. Also, the interference between the second connecting portion 32 and the supporting portion 2 is prevented by shortening the length.
Furthermore, as shown in FIG. 3A, the interval between the second connecting portions 32 facing each other is set to be larger than the thickness of the first connecting portion 31 at the widest point. The opposing second connecting portions 32 are provided obliquely so that the distance between them decreases toward the ends, and the second connecting portions 32 come into contact with each other at the ends. On the other hand, since the second connecting portions 32 are each formed of a thin plate member, they have flexibility, and the interval between the second connecting portions 32 is provided so that it can be easily widened by pushing from the inside.
In addition, as shown in FIGS. 3(a) and 3(c), in the portion where the second connecting portion 32 and the support portion 2 are joined, the height of the second connecting portion 32 from the mounting surface a is Although it is substantially the same as the support part 2, it has a structure in which the height is reduced at a slightly spaced position, thereby increasing the surface area of the part connected to the support part 2 and increasing the strength.

The second hole 321 is a round hole portion into which the connecting pin 4 can be inserted, and its inner diameter is formed to be slightly larger than or substantially the same as the outer diameter of the connecting pin 4 .
Moreover, the distance from the second hole 321 to the mounting surface a is provided so as to match the distance from the first hole 311 (particularly the engaging portion 313) to the mounting surface a. As a result, the mounting surface a of the first connecting portion 31 and the mounting surface a of the second connecting portion 32 are positioned on the same plane in a state where the connecting pin 4 is inserted and locked. can be placed stably with
Furthermore, the distance from the second hole 321 to the rounded end of the second connecting portion 32 is set to be substantially the same as or slightly shorter than the distance from the long hole portion 312 to the mounting surface a. With such a configuration, even when the connecting pin 4 is inserted as shown in FIG. 4(c), another connecting device can be relatively rotated while the connecting device X is placed on the ground.
Also, the long hole portion 312 and the locking portion 313 may be provided in the second hole 321 .

The connection reinforcement portion 322 is a portion provided on the mounting surface a of the second connection portion 32 and the upper surface of the second connection portion 32 and having more molding material than the surroundings. By increasing the thickness of these portions, the force applied to the second connecting portion 32 is dispersed when placed or connected, and the load is reinforced. At the same time, it prevents breakage due to bending.

The connecting pin 4 is a round bar member having an inner diameter substantially equal to or slightly smaller than the outer diameter of the first hole 311 and the second hole 321, and the length thereof is 32 are inserted at the same time, they are provided so as to protrude from both sides by about 2 to 5 mm.
In addition, a groove for fitting a C-shaped snap ring larger than the outer diameter of the second hole 321 is provided at both ends of the portion that protrudes when the connecting pin 4 penetrates the connecting portion.

On the other hand, instead of the connecting pin 4, as shown in FIG. The connecting shaft 5 has a diameter equal to that of the connecting pin 4 and a length substantially equal to that of the rod 11. At both ends of the connecting shaft 5, C-shaped snap rings corresponding to the second holes 321 are provided. A groove is formed for mating.
As a result, the connecting shaft 5 can act like the connecting pin 4, and at the same time, the load on the rod 11 for defining the interval between the connecting devices X can be reduced.

《About Roller Conveyor Y》
The roller conveyor Y is constructed by supporting both ends of one roller 1 with two connecting devices X, as shown in FIG.
More specifically, the grooves are exposed near both surfaces of the support hole 21 when the rod 11 penetrates the support hole 21 . It is fixed by fitting a C-shaped retaining ring in the groove.

《About Conveyor Line Z》
As shown in FIGS. 5 to 8, by connecting a plurality of roller conveyors Y at the connecting portion 3 of the connecting device X, a conveyor line Z of any length can be formed.

Hereinafter, the method of carrying out the present invention will be described in detail with reference to FIGS. 1 to 8. FIG. The present invention is carried out by a user who has the purpose of assembling and storing the conveyor line Z and the purpose of modifying the conveyor line in any manner. Moreover, the implementation method shown below is an example, and the implementation method is not limited to this, and the order may be changed.

<Assembly and storage of conveyor line Z>
First, the user attaches the roller 1 to the coupling device X to assemble the roller conveyor Y as shown in FIG. The mounting is performed by inserting the protruding portions of the rod 11 into the support holes 21 at both ends of the rod 11 and fitting a C-shaped snap ring into a groove of the rod 11 provided at an appropriate position.

The user then connects a plurality of roller conveyors Y to assemble a conveyor line Z as shown in FIG. The connection is performed by connecting the first connection portion 31 and the second connection portion 32 of each roller conveyor Y with the connection pin 4 .

That is, the user inserts and pushes the first connecting portion 31 into the gap formed by the second connecting portions 32 shown in FIGS. The first connecting portion 31 is sandwiched between the portions 32 . The user aligns the first hole 311 and the second hole 321 in that state. At this time, the elastic force of the second connecting portion 32 holds the first connecting portion 31 loosely, which facilitates alignment.

After that, the user aligns the first hole 311 and the second hole 321, inserts the connecting pin 4 while maintaining this state, and fixes the groove of the connecting pin 4 with a C-shaped snap ring. Here, since the first hole 311 is provided with a size and shape that includes the second hole 321, the connection pin 4 can be easily attached.
A connecting shaft 5 may be used instead of the connecting pin 4 .
A user can assemble a conveyor line Z of any length by performing the connecting operation on any number of roller conveyors Y.

Next, the user installs the conveyor line Z on the installation surface with the installation surface a as the bottom surface. Here, since the connecting pin 4 fixed to the second hole 321 is locked to the locking portion 313, there is no possibility that the length will change during use.
After grounding, the load is placed on the rollers 1 and is transported by sliding the load.

Finally, the user retracts the conveyor line Z. Here, as shown in FIG. 4(c), since the connecting devices X are provided so as to be relatively rotatable in a connected state, the conveyor line Z can be wound and stored in a connected state. .
Here, the configuration in which the second connecting portion 32 sandwiches the first hole 311 and slides on the elongated hole portion 312 increases the degree of freedom in the positional relationship and the relative angle between the roller conveyors Y for relative rotation, and The radius can be reduced to improve storage performance.
In addition, by providing a mechanism that prevents the adjacent rollers 1 and support portions 2 from interfering with each other and rotating the relative angle beyond a predetermined value, the support portion 2 and the connection portion 3 or the connection portion 3 can be rotated to the maximum angle. It is preferable to provide a gap between them to avoid pinching of fingers.

《Length change of conveyor line》
As shown in FIGS. 4A and 4B, the user can adjust the interval between the connecting devices X by changing the position of the locking portion 313 to which the connecting pin 4 is locked. can.
The position is changed by lifting the second connecting portion 32 with respect to the first connecting portion 31 , sliding the long hole portion 312 of the connecting pin 4 in this state, and fitting it into another engaging portion 313 .
A user can adjust the length of the conveyor line Z as shown in FIGS.

Further, when the user further adjusts the length, the connecting device X is disconnected as appropriate, or the disconnected one is connected. That is, the length is adjusted by adjusting the number of roller conveyors Y installed.

《Change the angle of the conveyor line》
The user can adjust the spacing between coupling devices X as described in FIGS. 4(a) and 4(b) and above.
Here, the coupling device X is provided at both ends of the roller 1, and by performing coupling by making the interval of the coupling device X at one end and the interval of the coupling device X at the other end different, as shown in FIG. You can change the angle.

Further, when the user wants to change the angle further, the connecting pin 4 of the connecting device X on the wide side is removed to widen the space between the connecting devices X further. At this time, the connecting device X on the narrower side can change the angle up to a certain angle without releasing the connecting pin due to the flexibility of the connecting portion 3 .
When the user installs at an angle greater than this, the position and angle can be freely changed by combining a plurality of roller conveyors Y by removing the inner connecting pin 4 .

Moreover, according to the configuration of the present invention, it is possible to connect with the conventional product as described in Non-Patent Document 1, so that the existing product can be utilized. This eliminates the need to dispose of equipment when updating business equipment.

1 Roller 11 Rod 12 Rotating Body 2 Supporting Part 21 Supporting Hole 22 Supporting Reinforcing Part 3 Connecting Part 31 First Connecting Part 311 First Hole 312 Slotted Hole 313 Locking Part 32 Second Connecting Part 321 Second Hole 322 Connecting Reinforcing Part 4 connecting pin a mounting surface X connecting device Y roller conveyor Z conveyor line

Claims (6)

A support portion that rotatably supports the roller and a connecting portion,
The connecting portion has a first connecting portion and a second connecting portion,
The first connecting portion and the second connecting portion are connected via a connecting pin that simultaneously penetrates the first hole provided in the first connecting portion and the second hole provided in the second connecting portion. provided to be connectable to each other,
The connecting device, wherein the first hole includes an elongated hole into which the connecting pin slides, and a plurality of locking portions into which the connecting pin is fitted and locked . at least one of the support portion and the connecting portion has a mounting surface to be mounted on the ground;
2. The connecting device according to claim 1, wherein the elongated hole has a long axis parallel to the mounting surface. 3. The coupling device according to claim 2, wherein the engaging portion is provided as a notch portion extending from the elongated hole portion toward the mounting surface. The second connecting portion is a thin plate member having flexibility,
The connecting device according to any one of claims 1 to 3, wherein the first connecting portion is sandwiched and connected between the opposing second connecting portions. A roller conveyor in which the connecting device according to any one of claims 1 to 4 is provided on both ends of the roller. A plurality of roller conveyors according to claim 5,
The plurality of roller conveyors is a conveyor line in which the first connecting portion and the second connecting portion are connected.

Images