JPH08133436A - Conveyor device - Google Patents

Abstract

PURPOSE: To smoothly and securely couple the movement of a driving shaft of a fixed conveyor with the movement of a driving shaft of a semi-lift conveyor. CONSTITUTION: Plural connecting pins 25 are provided in a first connecting member 24 provided in a driving shaft 14 of a fixed conveyor so as to be displaced from the center of turning of the first driving shaft 14 to the periphery by the predetermined quantity and so as to be projected. Plural semi-circular notch parts 41, in which the connecting pins 25 of the first connecting member 24 can be respectively fitted, are formed in the periphery of a second connecting member 40, which is provided in a second driving shaft 34 of a semi-lift conveyor, so as to be opened in the radial direction. The connecting pins 25 are fitted in the notch parts 41 in the condition that each conveyor is connected to each other, and the second driving shaft 34 of the semi-lift conveyor is coupled with the first driving shaft 14 of the fixed conveyor by fitting these connecting pins 25 in the notch parts 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor device for conveying an article in a predetermined direction by means of rollers operating in conjunction with a drive shaft, and more specifically, for ensuring a passage in a direction intersecting the article conveying direction. Relates to a drive shaft connecting structure of a flip-up type conveyor device.

[0002]

2. Description of the Related Art As a conventional conveyor device, there is a conveyor device which secures a passage in a direction intersecting with the article conveying direction by swinging upward a flip-up portion provided between stationary portions before and after the conveying direction. (See Japanese Utility Model Publication No. 55-9530). In the stationary section and the flip-up section, a large number of rollers rotate in conjunction with respective drive shafts via an endless belt, and convey the placed article in a predetermined direction. The endless belt is wound around an annular groove provided at a predetermined axial position on the outer peripheral surface of the roller and a pulley fixed to the drive shaft. Each drive shaft is indirectly linked via a link belt and is driven by a drive source. That is, as shown in FIG. 6, the interlocking belt 50 is wound around the interlocking pulley 52 provided on the drive shaft 51 of the stationary section and the drive pulley 53 provided on the drive source, and is rebounded. The interlocking pulley 55 provided on the drive shaft 54 of the lifting portion
In the normal state where the flip-up part is connected to the stationary part,
When the interlocking belt 50 is engaged and interlocked, and the flip-up portion is swung upward, the interlocking belt 50 is separated and the interlocking is released. That is, in a normal state in which the flip-up part is continuous with the stationary part, the interlocking belt 50 is engaged with the interlocking pulley 55 of the drive shaft 54 of the flip-up part, whereby the drive shaft 51 of the stationary part and the flip-up part is engaged. , 5
4 are interlocked via interlocking belts 50 and are rotationally driven by a drive source. Further, when the flip-up portion is swung upward, the interlocking pulley 55 of the drive shaft 54 of the flip-up portion is separated from the interlocking belt 50, so that only the drive shaft 51 of the stationary portion interposes the interlocking belt 50. The drive shaft 54 of the flip-up portion is not driven.

Further, the respective drive shafts of the fixed conveyor and the flip-up conveyor swingably supported by the fixed conveyor are provided on the same straight line along the article conveying direction.
As shown in, by fitting the pin 62 of the pin mounting plate 61 provided on the drive shaft 60 of the fixed conveyor into the fitting hole 65 of the clutch plate 64 provided on the drive shaft 63 of the flip-up conveyor, Some drive shafts 60 and 63 are interlocked with each other (see Japanese Utility Model Laid-Open No. 57-99817). In such a conveyor device, in the normal state where the flip-up conveyor is connected to the fixed conveyor, the pin mounting plate 6
The pin 62 of No. 1 is fitted into the fitting hole 65 of the clutch plate 64, whereby the drive shafts 60, 63 rotate in conjunction with each other,
Rotate the roller. Then, when the flip-up conveyor is swung upward, the pin 62 is disengaged from the fitting hole 65, and the drive shaft 63 of the flip-up conveyor becomes the drive shaft 60 of the fixed conveyor.
The rotation of the roller is stopped as a result of not being linked with.

[0004]

However, in the former conveyor device among the above-mentioned conventional conveyor devices, the drive shafts 51 and 54 of the stationary portion and the flip-up portion are connected to the interlocking belt 5.
Since they are indirectly linked via 0, the positions of the drive shafts 51 and 54 in the axial direction of the rollers need to be different, as shown in FIG. Therefore, a space for arranging the interlocking belt 50 along the axial direction of the roller is required, and the endless belt that interlocks the drive shafts 51 and 54 with the roller is wound around each roller, that is, in an annular shape. The positions of the grooves in the axial direction of the rollers must also be different, and rollers with different annular groove positions must be used for the stationary portion and the flip-up portion. Specifically, in a fixed conveyor, an annular groove must be formed at the end of the roller, and in a flip-up conveyor, an annular groove must be formed in the center of the roller. Therefore, in the latter device, the structure is complicated and an increase in the number of parts cannot be avoided,
It is difficult to achieve downsizing, and the roller, which is a large number of parts, cannot be shared between the stationary part and the flip-up part, resulting in a further increase in the number of parts and assembly man-hours, resulting in high cost. There is an unavoidable problem.

In the latter conveyor device, the flip-up conveyor oscillated upward is returned to the state of being continuous with the fixed conveyor, and when the drive shafts 60 and 63 of the respective conveyors are interlocked, as shown in FIG. Drive shaft 63 for lifting conveyor
Of the clutch plate 64 approaches the pin mounting plate 61 of the fixed conveyer drive shaft 60 in the rotating state, whereby the pin 62 of the pin mounting plate 61 is fitted into the fitting hole 65 of the clutch plate 64. At this time, if the pin 62 does not fit into the fitting hole 65 and comes into contact with an opposing surface of the clutch plate 64 other than the fitting hole 65, the pin 62 is fitted into the fitting hole as the pin mounting plate 61 rotates. The pin 62 slides on the clutch plate 64 until it is fitted into the clutch plate 65. For this reason, especially around the fitting hole 65 in the clutch plate 64, wear occurs due to sliding with the pin 62, which leads to an extremely early replacement of parts and an increase in cost associated with parts replacement. There is.

According to the present invention, it is not necessary to indirectly interlock each drive shaft through another member such as an interlocking belt, so that the number of parts and the number of assembling steps can be reduced and the size can be reduced. However, it is an object of the present invention to provide a conveyor device capable of smoothly and reliably interlocking drive shafts, improving durability of members, and significantly reducing costs.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fixed conveyor that conveys articles in a predetermined direction by means of a roller that operates in conjunction with a first drive shaft, and swings with respect to the fixed conveyor. An article is conveyed in a predetermined direction by a roller that is movably provided and operates in conjunction with a second drive axis, and the second drive axis is used to convey the article in the first drive axis of the fixed conveyor and the article conveyance direction. On the same straight line, a first connecting member provided on the drive shaft of one of the conveyors, and a drive shaft of the other conveyor provided opposite to the first connecting member. A second connecting member, and a surface of the first connecting member facing the second connecting member is provided with a protrusion that is eccentric from the rotation center of the drive shaft in the outer peripheral direction. , On the outer periphery of the second connecting member The projection and can fit notch is circumferentially at predetermined intervals, are provided a plurality opened radially, the drive shaft of the respective conveyor,
The present invention is achieved by a conveyor device characterized in that power is transmitted by fitting the protrusion and the notch.

[0008]

In the conveyor device according to the present invention, the fixed conveyor operates the roller in conjunction with the first drive shaft to convey the article in a predetermined direction. The flip-up conveyor has a first drive shaft of the fixed conveyer and a second drive shaft provided on the same straight line along the conveyance direction of the article as the first drive shaft of the fixed conveyer while being continuous with the fixed conveyer. Interlocked with the axis. That is, the second drive shaft of the flip-up conveyor is
By the smooth and reliable fitting of the protrusion of the connecting member and the notch provided in the radial direction of the second connecting member, it is interlocked with the first drive shaft of the fixed conveyor. As a result, the flip-up conveyor operates the roller in conjunction with the second drive shaft to convey the article in the predetermined direction. Further, the flip-up conveyor secures a passage in a direction intersecting the article conveyance direction while being swung with respect to the fixed conveyor. At this time, the flip-up conveyor is disengaged from the second drive shaft and the first drive shaft of the fixed conveyor. That is, the second drive shaft of the flip-up conveyor is interlocked with the first drive shaft of the fixed conveyor by disengaging the protrusion of the first connecting member from the notch of the second connecting member. It is released and the operation of the roller is stopped.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing a conveyor device according to an embodiment of the present invention. In this figure, a flip-up conveyor 30 is provided between the fixed conveyors 10, and the flip-up conveyor 30 is flipped up from a position continuous with the fixed conveyor 10 (a continuous position shown by a solid line in FIG. 1). It is possible to swing to a predetermined position (a flip-up position shown by a chain double-dashed line in FIG. 1). In a state where the flip-up conveyor 30 is swung counterclockwise in FIG. 1 to the flip-up position, work is performed in a direction orthogonal to the article conveying direction (arrow A direction) (direction perpendicular to the paper surface in FIG. 1). A crossing passage is secured for persons and goods.

Fixed conveyor 10 and flip-up conveyor 3
0, a large number of rollers 11 and 31 are rotatably supported by the conveyor frames 12 and 32, respectively, and are interlocked with the first and second drive shafts 14 and 34 via the endless belts 13 and 33. By rotating clockwise in FIG. 1, the placed article (not shown) is transported in the transport direction A. Conveyor frame 3 of flip-up conveyor 30
2 is supported by a conveyor frame 32 on the left side in FIG. 1 of the fixed conveyor 10 so as to be swingable around a pin 35 via a connecting plate 26, whereby the flip-up conveyor 30 is moved relative to the fixed conveyor 10. It is possible to swing between the continuous position and the flip-up position.

As shown in FIG. 2, each conveyor 10, 30
In the vicinity of the right end portion in FIG. 2 on the outer peripheral surfaces of the rollers 11 and 31, the annular groove 15 around which the endless belts 13 and 33 are wound,
36 are formed along the circumferential direction. Referring again to FIG. 1, the first and second drive shafts 1 of each conveyor 10, 30 are shown.
4, 34 are arranged so as to be on the same straight line which is orthogonal to the longitudinal direction of the rollers 11, 31 and which extends along the conveyance direction A, and are rotated to the respective conveyor frames 12, 32 via the bearing portions 16, 37. It is movably supported. Each drive shaft 14,
A large number of pulleys 17 and 38 are provided at predetermined positions corresponding to the rollers 11 and 31 on the shaft 34 along the axial direction. Pulley groove 1 formed on the outer periphery of each pulley 17, 38
8 and 39 (FIG. 2), the endless belts 13 and 33 are wound between the corresponding rollers 11 and 31 and the annular grooves 15 and 36 while being twisted by about 90 ° in the horizontal direction. .

A driven sprocket 19 is fixed to the first drive shaft 14 on the left side of the fixed conveyor 10 in FIG. 1, and the rotary shaft 2 of the motor 20 is fixed to the driven sprocket 19.
The drive chain 23 is wound around the drive sprocket 22 fixed to 1. The first drive shaft 14 is interlocked with the motor 20 via the drive chain 23 and rotates counterclockwise in FIG. Further, at the right end of the first drive shaft 14,
A first connecting member 24 is provided, and as shown in FIG. 4, a connecting pin 25, which is a protrusion, is provided on the right side surface of the first connecting member 24 as a center of rotation of the first drive shaft 14. A plurality of (four in this embodiment) are provided so as to be eccentric by a predetermined amount in the outer peripheral direction and project rightward in FIG. Each connecting pin 25
Is always urged to the right in FIG. 4 by the spring 27.

As shown in FIG. 1, a flip-up conveyor 30
At the left end of the second drive shaft 34 of the
Is provided so as to face the first connecting member 24, and a notch 41 into which the connecting pin 25 of the first connecting member 24 can be fitted is provided on the outer periphery of the second connecting member 40 in the circumferential direction. Are formed in a semicircular shape with a large number of openings at equal intervals along the radial direction. That is, in the cutout portion 41, the flip-up conveyor 30 is in a continuous position, and the connecting pin 25 is fitted in a state where the conveyors 10 and 30 are continuous, and by fitting the connecting pin 25 and the cutout portion 41, The second drive shaft 34 of the flip-up conveyor 30 is linked to the first drive shaft 14 of the fixed conveyor 10. This second connecting member 40
For, a sprocket for driving a chain can be used.

It is desirable that each of the first and second connecting members 24 and 40 be subjected to quenching treatment to increase the member rigidity so as to have a long service life. The frequency of parts replacement is reduced to reduce the cost. Is desirable.

The operation of this embodiment will be described. The fixed conveyor 10 rotates a large number of rollers 11 via the endless belt 13 in conjunction with the first drive shaft 14, and conveys the article on the rollers 11 in the conveyance direction A. The flip-up conveyor 30
In the continuous position with the fixed conveyor 10, the connecting pin 2 of the first connecting member 24 is provided in the notch 41 of the second connecting member 40.
5, the second drive shaft 34 is interlocked with the first drive shaft 14 of the fixed conveyor 10. As a result, the flip-up conveyor 30 causes the rollers 31 to rotate in conjunction with the second drive shaft 34 via the endless belt 33, and the rollers 3
The article on 1 is conveyed in the conveyance direction A between the fixed conveyors 10. In addition, the flip-up conveyor 30 is swung counterclockwise in FIG.
Securing a crossing passage orthogonal to. At this time, the second drive shaft 34 of the flip-up conveyor 30 has the second connecting member 40.
When the connecting pin 25 of the first connecting member 24 is disengaged from the notch 41, the interlocking with the first drive shaft 14 of the fixed conveyor 10 is released, and the rotation of each roller 31 is stopped. Further, the flip-up conveyor 30 is swung clockwise from the flip-up position around the pin 35 in FIG. 1 and returned to the continuous position. At this time, the flip-up conveyor 30 smoothly and surely fits the connecting pin 25 of the first connecting member 24 into the notch 41 of the second connecting member 40, and the second drive shaft 34 is fixed to the first connecting member 40 of the fixed conveyor 10. One drive shaft 14 is interlocked. As a result, the flip-up conveyor 30 causes the rollers 31 to rotate again by interlocking with the second drive shaft 34 via the endless belt 33, and the articles on the rollers 31 are fixed.
It conveys in the conveyance direction A between.

As described above, according to the above-described embodiment, the drive shafts 14 of the fixed conveyor 10 and the flip-up conveyor 30,
Since 34 is provided so as to be in the same straight line along the transport direction A in a state where the conveyors 10 and 30 are continuous, the drive shafts 14 and 34 are indirectly linked via another member such as a belt. The first connecting member 24
The drive shafts 14 and 34 can be directly connected and interlocked with each other by fitting the connection pin 25 of 1 to the cutout portion 41 of the second connection member 40. Therefore, each drive shaft 14, 34
Since a member and a space for indirectly interlocking with each other are not required, the number of parts and the number of assembling steps can be reduced, and the size of the device can be reduced. Further, since each of the notches 41 into which the connecting pin 25 is fitted is formed in a semicircular shape that is open in the radial direction at equal intervals, the connecting pin 25 is formed in a hole that does not open in the radial direction. The connecting pin 25 can be fitted very smoothly and reliably as compared with the conventional conveyor device in which the connecting pin 25 is fitted, and sliding of the movable part accompanying the fitting of the connecting pin 25 into the notch 41 is minimized. More notches 41 can be provided even if the size of the second connecting member 40 is small. As a result, each drive shaft 1
4, 34 can be smoothly and reliably interlocked, durability of each member can be significantly improved, the frequency of parts replacement can be reduced, and cost can be reduced. Furthermore, as the second connecting member 40, a sprocket that is generally available on the market can be used, which can significantly reduce the manufacturing cost.

In the above embodiment, the second connecting member 40 is used.
As a plurality of notches 41 into which the connecting pin 25 of the first connecting member 24 can be fitted are formed at equal intervals along the circumferential direction on the outer circumference and are respectively formed in a semicircular shape with radial openings. However, the shape and number of the notches 41 are not limited as long as the connecting pin 25 can be fitted smoothly and surely. For example, the number of the notches 41 is at least two. There is enough. Further, for example, as shown in FIG. 5, four semi-elliptical notches 42 that are opened in the radial direction and are formed on the outer periphery at intervals of about 90 ° may be used as the second connecting member 40. . Further, in the above embodiment,
Although the first connecting member 24 is provided on the first drive shaft 14 of the fixed conveyor 10 and the second connecting member 40 is provided on the second drive shaft 34 of the flip-up conveyor 30, respectively. The second drive shaft 34 of the flip-up conveyor 30 is provided with the second connecting member 40 and the first drive shaft 1 of the fixed conveyor 10.
4 may be provided respectively.

[0018]

As described above, according to the present invention, since the drive shafts of the fixed conveyor and the flip-up conveyor are provided in the same straight line along the conveying direction of the articles, the drive shafts are separated from each other by an interlocking belt or the like. It is not necessary to indirectly interlock with each other via a member, and each drive shaft can be directly interlocked with each other by fitting the protrusion of the first connecting member and the notch of the second connecting member. Therefore, a separate member and a space for indirectly interlocking the drive shafts are not required, and the number of parts and the number of assembling steps can be reduced and the size can be reduced. In addition, since a plurality of notches for fitting the protrusions are provided in the radial direction at predetermined intervals in the circumferential direction of the second connecting member, the protrusions can be fitted very smoothly and reliably. In addition, it is possible to reduce the sliding of the movable part due to the fitting as much as possible, whereby the drive shafts can be smoothly and reliably interlocked. Therefore, the durability of the member can be significantly improved, the frequency of component replacement can be reduced, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing a conveyor device according to an embodiment of the present invention.

FIG. 2 is a view on arrow B of the conveyor device of FIG.

3 is a perspective view showing first and second connecting members of the conveyor device of FIG. 1. FIG.

FIG. 4 is a side view of the connecting member of FIG.

FIG. 5 is a diagram showing another example of the second connecting member.

FIG. 6 is a cross-sectional view showing a conventional conveyor device.

FIG. 7 is a view showing a pin mounting plate and a clutch plate of a conventional conveyor device.

[Explanation of symbols]

 10 Fixed Conveyor 11, 31 Roller 14 First Drive Shaft 24 First Connecting Member 25 Projection Part (Connecting Pin) 30 Flipping Conveyor 34 Second Drive Shaft 40 Second Connecting Member 41, 42 Notch

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Eiichi Kudo 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd.

Claims (1)

[Claims] 1. A fixed conveyor (10) that conveys an article in a predetermined direction by a roller (11) that operates in conjunction with a first drive shaft (14), and a swing with respect to the fixed conveyor (10). A roller (31) that is movably provided and that operates in conjunction with a second drive shaft (34) conveys an article in a predetermined direction, and the second drive shaft (34) moves the fixed conveyor ( 1
0) the first drive shaft (14), the flip-up conveyor (30) arranged on the same straight line along the article transport direction, and the first drive shaft (14) provided on one of the conveyors (10). One connecting member (24) and a second connecting member (40) provided on the drive shaft (34) of the other conveyor (30) so as to face the first connecting member (24), A protrusion (25) is provided on the surface of the first connecting member (24) facing the second connecting member (40) so as to be eccentric from the rotation center of the drive shaft (14) in the outer peripheral direction. In addition, notches (41, 42) that can be fitted to the protrusions (25) are provided on the outer periphery of the second connecting member (40) in the radial direction at predetermined intervals in the circumferential direction. A plurality of openings are provided and the drive shafts (14, 30) of the conveyors (10, 30) are provided.
4) is a conveyor device characterized in that power is transmitted by fitting the protrusion (25) and the notch (41).