JP4256735B2 - Trolley Conveyor Hanger Roller, Trolley Conveyor Hanger Roller Roller Shaft Hole Attachment, Trolley Conveyor Hanger and Trolley Conveyor - Google Patents

Description

The present invention relates to a roller of a trolley conveyor hanger, a roller shaft hole attachment of a roller of a trolley conveyor hanger, a trolley conveyor hanger, and a trolley conveyor .
More specifically, in a trolley conveyor hanger configured so that the roller is attached to the base body by a roller shaft and a nut, the rotation of the roller shaft having the roller in the circumferential direction is prevented with respect to the shaft hole penetrating the base body. The present invention relates to an attachment to which means can be provided and a trolley conveyor hanger provided with the attachment.
Further, the present invention relates to a trolley conveyor hanger and a trolley conveyor that have smoother movement and improved durability.

For example, in a broiler (food bird) processing plant, a trolley conveyor is used as a means for conveying a broiler. The trolley conveyor has a structure in which a large number of hangers having rollers (or wheels) are hung on two sides on both ends of a Y-shaped base on a transport rail formed of a metal circular tube or the like (reference) As shown in FIG.
As the structure of the roller rotation portion of the hanger constituting the trolley conveyor used in the broiler processing factory, the structure shown in FIG. 7 has been widely used.

In the hanger 5 shown in FIG. 7, the rollers 51 provided at two positions on both ends of the Y-shaped base 50 are rotatable on the metal inner ring 52 fixed to the shaft 56 and outside the inner ring 52. It has an outer ring 53 made of synthetic resin. In the portion between the inner ring 52 and the outer ring 53, two spaces 54 extending over the entire circumference are arranged in parallel. In each space 54, a large number of metal balls 55 are accommodated without grease.
Further, the shaft 56 is fixed by passing a screw part 560 through the shaft hole 57 of the base body 50 and screwing a nut 58 into the screw part 560 and tightening. The shaft 56 is provided with a spacer 59 for setting a necessary distance between the base 50 front portion and the roller 51.

However, the hanger shown in FIG. 7 has the following problems.
In other words, when tightening or loosening the roller shaft and nut, for example, when replacing the roller during maintenance, it is necessary to rotate the other while fixing either the roller shaft or nut. Each must have a dedicated tool.
However, in this case, since the hanger itself cannot be fixed by hand, the work becomes unstable and workability is extremely poor.

Further, since the outer ring made of synthetic resin is in contact with the metal ball, the wear on the inner surface side of the outer ring is extremely large due to the difference in hardness between the two, and much wear dust is generated.
The space in which the metal sphere is accommodated is formed with a large margin so that the rotation of the metal sphere can be performed smoothly, and the gap with the outside is also large.
On the other hand, in broiler processing factories, blood is removed, hair removed, disassembled, etc. while the broiler is transported by a trolley conveyor, so a large amount of bodily fluid such as blood, heated steam, hot water, water, etc. is applied to the hanger. Dust, including feathers, also floats.

For this reason, blood, water, dust or the like easily enters between the inner ring and the outer ring of the roller part, and the metal ball rusts in a short period of time and sometimes cannot be rotated. In addition, wear on the outer ring side progressed, and the metal balls often dropped from the space.
In addition, there are many up / down and sharp curves etc. in the conveyance path, and such places are subjected to larger and abrupt unbalanced loads on the roller part compared to horizontal places, so that the outer ring made of synthetic resin is damaged and This caused the metal balls to fall off easily.
For these reasons, conventional hangers often cannot be used in a few months under somewhat special conditions such as the above-described broiler processing plants, and have a drawback in durability.

  It is an object of the present invention to provide a shaft hole in a base simply so that the hanger used in a trolley conveyor can be easily and reliably operated when a roller is attached or replaced during maintenance or the like. By providing a roller shaft hole attachment for a trolley conveyor hanger and a trolley conveyor hanger using the same, which can provide a means for preventing rotation of the roller shaft having a roller in the circumferential direction of an existing (conventional) hanger. is there.

Another object of the present invention is to prevent blood, water, and dust from entering the rotating part of the roller part that moves while rotating along the transport rail in the hanger, and to prevent damage and contamination of the roller part resulting therefrom. It is to provide a trolley conveyor hanger and a trolley conveyor that is prevented and has sufficient durability.

Still another object of the present invention is to stabilize the rotation of the roller so that it can sufficiently withstand even a large and sudden unbalanced load on the roller due to many ups and downs or sharp curves in the conveyance path. It is to provide a trolley conveyor hanger and trolley conveyor that can be used.

The means of the present invention taken in order to solve the above problems are as follows.
In the first invention,
A hanger base that is formed so as to be substantially Y-shaped as a whole has rollers attached to the inside of two places on the upper end side that is inclined slightly outward, and is hung on a circular transport rail. A trolley conveyor hanger roller,
The roller includes a roller shaft, a rolling bearing, a roller body, and a sealing member.
The roller body is made of a synthetic resin and is an end face sealing type whose outer surface is formed in a spherical shape, the outer peripheral surface is a convex surface having a circular arc cross section over the entire circumference, and a sealing member receiving hole is formed on the inner surface of the roller main body. It is a little shallow,
The roller body has a rolling bearing embedded in the center of rotation, and a roller shaft is inserted into the center hole of the rolling bearing,
The roller shaft has a large-diameter shaft portion and a small-diameter shaft portion provided with a screw portion on the other end side, and an engaging step portion is provided at a boundary portion between the small-diameter shaft portion and the large-diameter shaft portion. Yes,
Further, the roller shaft is inserted through the roller shaft almost without any gap, and a sealing member provided with an insertion hole contacting the engagement step portion is fitted into the hole edge portion, and the inserted sealing member is the sealing member. The rolling bearing is hermetically sealed or obscured, located inside the receiving hole, and the outer surface is flush with the inner surface of the roller body.
It is a roller of a trolley conveyor hanger.

In the second invention,
A shaft hole attachment formed in a tubular shape for fixing to a shaft hole to which a roller shaft of a roller of the trolley conveyor hanger according to the first invention is attached,
A fitting portion having an insertion hole, which can be fitted into and fixed to two axial holes on the upper end side inclined slightly outward of the hanger base;
A projecting portion that is formed larger in diameter than the fitting portion and has means for preventing rotation in the circumferential direction of the roller shaft inserted through the fitting portion in cooperation with the engaging means provided on the roller shaft; With
It is a roller shaft hole attachment of the roller of a trolley conveyor hanger.

In the third invention,
The roller shaft has a pin hole provided penetrating in the diameter line direction, and the engagement means provided on the roller shaft is an engagement pin attached to the pin hole,
Means for preventing rotation of the shaft circumferential direction of the roller shaft is an engaging groove for the engaging pin and the engaging that is provided in a direction crossing the axial direction to the roller axis,
It is a roller shaft hole attachment of the roller of the trolley conveyor hanger which concerns on 2nd invention .

In the fourth invention,
The shaft hole attachment has a notch that extends from the outer periphery to the inner periphery over the entire length in the axial direction .
It is a roller shaft hole attachment of the roller of the trolley conveyor hanger which concerns on 2nd or 3rd invention .

In the fifth invention,
A trolley conveyor hanger having a roller shaft hole attachment of a roller of the trolley conveyor hanger according to the first invention and a roller of the trolley conveyor hanger according to the third invention or the fourth invention ,
The tip end side of the roller shaft is inserted into an insertion hole of a shaft hole attachment provided on the upper end side of the hanger base, and an engagement pin formed longer than the length of the pin hole is attached to the pin hole. The engagement pin is engaged with the engagement groove of the shaft hole attachment, and a detent nut is screwed to the thread portion protruding to the opposite side of the hanger base.
A trolley conveyor hanger.

In the sixth invention,
A transport rail, and a trolley conveyor hanger over according to a fifth invention is applied to the transfer rail,
It is a trolley conveyor.

  As a means for preventing the rotation of the roller shaft in the circumferential direction, an engagement projection such as an engagement pin is provided on the roller shaft side, and an engagement recess such as a groove is provided on the through hole side of the base. In addition to the structure that prevents rotation by combining them, for example, in this structure, the engagement convex part and the engagement concave part are provided on the opposite side, or the through hole side is a hole having a polygonal cross section, and the hole is formed on the roller shaft side. However, the present invention is not limited to such a structure.

As the rolling bearing, a radial bearing that mainly loads a load (radial load) in a direction perpendicular to the shaft center may be used, or a thrust bearing that loads a load parallel to the shaft center (thrust load) may be used. Good.
The rolling bearing is preferably a waterproof or dustproof type provided with a rubber seal or a metal seal, but is not limited thereto. The rolling bearing may be greaseless or may use grease if grease leakage can be prevented.

  Further, when the use environment is poor in terms of corrosion resistance, it is more preferable to use a rolling bearing made of stainless steel. Further, the rolling bearing is not limited to a spherical rolling element (ball bearing), and may be a cylindrical roller, a conical roller, a spherical roller, a needle roller, or the like. The rolling elements may be single row or double row. Furthermore, it is possible to employ a roller in which a plurality of rolling bearings are provided to improve load bearing performance.

(Function)
Action of trolley conveyor hanger roller shaft hole attachment according to the present invention is as follows.
A fitting part or the like is fitted into a shaft hole for attaching a roller shaft provided on a hanger used for a trolley conveyor, and the attachment is fixed. The fixing is performed by driving (striking) or the like, but other methods such as adhesion may be used. Moreover, it does not necessarily need to be removed.
The roller shaft is inserted into the attachment, and engaging means such as an engaging pin provided on the roller shaft is engaged to prevent the roller shaft from rotating in the axial direction.

(A) According to the roller shaft hole attachment for the trolley conveyor hanger according to the present invention, the attachment of the attachment to the shaft hole for attaching the roller shaft of the hanger rotates the roller shaft inserted through the attachment in the axial direction. Can be prevented.
That is, a function capable of preventing the roller shaft from rotating in the axial direction can be imparted to the conventional hanger base.
This also ensures that the roller shaft does not run idle even if the hanger itself is fixed with one hand when tightening or loosening the roller shaft and nut, for example, when replacing the roller during maintenance. The nut can be tightened in the state.
Accordingly, the work is not unstable and the workability is improved, so that the work can be performed easily and reliably, and the work in the operation state can be performed without necessarily stopping the conveyor.

(B) In the case where the cutout portion penetrating from the outer peripheral portion to the inner peripheral portion is provided over the entire length in the axial direction, the fitting portion is easily deformed so as to have a small diameter. According to this, since the diameter of the fitting part fitted into the shaft hole is not so required for accuracy as compared with the tubular type that is driven into the shaft hole and is fixed, it is easy to manufacture. Moreover, if it is a slight difference, it can also be attached to a shaft hole having a different diameter, and can be used as a combined type for different types of hangers.

(C) According to the trolley conveyor hanger according to the present invention, the roller traveling on the transport rail has the roller main body and the rolling bearing embedded in the rotation center portion of the roller main body, so that the rotation of the roller is stable. In addition, there are many ups and downs, sharp curves, etc. in the transport path, and even when a large and sudden offset load is applied to the roller, it can sufficiently withstand.
In addition, since the rolling bearing is sealed or obscured at least by the roller body, or essentially sealed or obscured, blood, water, dust, etc. are difficult to enter the rotating portion of the rolling bearing, resulting in damage to the roller portion. Staining can be prevented and sufficient durability can be imparted.

(D) According to the trolley conveyor according to the present invention, since the roller shaft hole attachment for the trolley conveyor hanger and the trolley conveyor hanger according to the present invention are provided, a high added value trolley conveyor having the above effects can be provided. .

  The present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 shows an embodiment of a shaft hole attachment according to the present invention, (a) is a perspective view, (b) is a longitudinal sectional view,
FIG. 2 is a perspective view showing an embodiment of a hanger according to the present invention,
FIG. 3 is an exploded perspective view of a mounting portion of a hanger roller shaft,
FIG. 4 is a cross-sectional explanatory view of a roller mounting portion of the hanger.
In FIG. 3, the roller is omitted for convenience of illustration.

First, the structure of the shaft hole attachment 6 will be described with reference to FIGS. 1 and 3.
The shaft hole attachment 6 is made of metal (in this embodiment, stainless steel having excellent corrosion resistance). The shaft hole attachment 6 has a portion having a different outer diameter, but has an insertion hole 63 in the central axis direction, and is essentially formed in a tubular shape (or a tubular shape). The shaft hole attachment 6 is an attachment for fixing to a shaft hole to which a roller shaft is attached in a hanger used for a trolley conveyor.

  The shaft hole attachment 6 has a fitting portion 60 that can be fitted into and fixed to the shaft hole of the hanger, and a protruding portion 61 that is formed larger in diameter than the fitting portion 60. On the end face side of the protruding portion 61, an engaging groove 62 is provided in the diameter line direction. The engaging groove 62 is formed to have a required width capable of engaging with an engaging pin provided on the roller shaft, and the depth is formed to be slightly smaller than the thickness of the protruding portion 61. The engagement groove 62, together with an engagement pin provided on the roller shaft, constitutes a means for preventing the roller shaft from rotating in the circumferential direction.

The diameter of the fitting portion 60 is slightly larger than the inner diameter of the shaft hole, and the shaft hole attachment 6 can be fixed by driving in using a hammer or the like.
The shaft hole attachment is not limited to those having different outer diameters as in the present embodiment, and may be a cylindrical one with the same outer diameter or a shape with one side slightly narrowed.

Next, the structure of the hanger A will be described with reference to FIGS.
The hanger A constitutes a trolley conveyor C in combination with a transport rail 3 described later. The hanger is not limited to that of the present embodiment, and the shape of the hanger base, the position and number of rollers, and the like can be variously set.
The hanger A includes a hanger base 1 made of metal and having a Y-shape when viewed from the front, and rollers 2 and 2 a provided at two locations on the upper end portions of the hanger base 1.

  The hanger base 1 is formed so that the lower body side is connected to the constituent bodies 10 and 11 whose lower side is linear and whose upper side is curved, and the whole is substantially Y-shaped. Moreover, the hanger base | substrate 1 is reinforced by bending the part of the upper part side of a linear part, and the side edge part of a curved part. Further, a hooking hole 15 for hooking a hook (see FIG. 5 described later) is provided through the lower end portion of the hanger base 1. The hanger substrate 1 has substantially the same structure as the substrate 50 shown in FIG.

  The tip portions of the structural bodies 10 and 11 are provided slightly inclined outward. The inclined portion 12 is provided with a circular shaft hole 13 penetrating the inside and outside. In the shaft hole 13, the shaft hole attachment 6 is fixed by fitting the fitting portion 60 by driving. The axial direction of the shaft hole attachment 6 is inclined upward at a required angle toward the inside (see FIGS. 2 and 5).

The structure and mounting structure of the rollers 2 and 2a are as follows. Referring mainly to FIG. 4, the roller 2 side is illustrated and described, and the description of the roller 2a side is omitted.
The roller 2 includes a roller shaft 20 made of stainless steel, a ball bearing 21 that is a rolling bearing, a roller body 22, a sealing member 23, and a detent nut 24.

  The roller body 22 is made of synthetic resin (in this embodiment, polyacetal resin, but is not limited to this, and may be formed of other synthetic resin such as nylon, fluorine resin, etc.), and the outer surface 221 is spherical. Is an end face sealing type. Since the outer surface 221 has a spherical shape, it repels water and dust from the upper part such as the ceiling, and these hardly stay on the surface and hardly enter the roller body 22. The outer peripheral surface 222 is a convex surface having an arc cross section over the entire periphery.

At the center of the inner surface 229 of the roller body 22, a circular sealing member accommodation hole 223 is provided slightly shallower.
In addition, a bearing mounting hole 224 having a diameter slightly smaller than that of the sealing member accommodation hole 223 is provided in the central portion of the roller body 22 so as to communicate with the sealing member accommodation hole 223. Between the bearing mounting hole 224 and the sealing member accommodation hole 223, latching projections 227 are provided so as to protrude at two locations facing each other in the circumferential direction so that the ball bearing 21 is not easily removed when the ball bearing 21 is mounted in the bearing mounting hole 224. It is. The protruding height is 0.1 mm in this embodiment, but is not limited to this.

Further, a space portion 226 having a slightly small diameter is provided in the center portion of the roller body 22 so as to communicate with the bearing mounting hole 224. A head portion 209 of the roller shaft 20 is positioned in the space portion 226.
The roller shaft 20 has a structure in which a head portion 209 having a slightly larger diameter is provided on one end side of the large diameter shaft portion 200 and a screw portion 201 is provided on the other end side of the small diameter shaft portion 202. Further, an engagement step portion 205 is provided at a boundary portion between the large-diameter shaft portion 200 and the small-diameter shaft portion 202.

Further, the small diameter shaft portion 202 of the roller shaft 20 is provided with a pin hole 206 penetrating in the diameter line direction (see FIGS. 3 and 4). An engagement pin 207 formed longer than the length of the pin hole 206 is attached to the pin hole 206. The engagement pin 207 is a taper pin formed so that the diameter gradually decreases from one end side to the other end side, and after being inserted into the pin hole 206, it is lightly struck and fixed.
As the engaging pin 207, a parallel pin (a pin having the same thickness over the entire length), a spring pin, or the like can be employed in addition to the taper pin as long as it has a function of stopping the rotation of the roller shaft 20 in the axial direction. .

  The roller shaft 20 is inserted into the center hole 210 of the ball bearing 21. In this state, the ball bearing 21 is fitted into the bearing mounting hole 224 so that the head portion 209 is accommodated in the space portion 226. The ball bearing 21 mounted in the bearing mounting hole 224 is stopped by being hooked on the locking protrusion 227 and cannot be easily removed.

Further, a substantially circular sealing member 23 is fitted into the roller shaft 20. The diameter of the blocking member 23 is slightly smaller than the inner diameter of the blocking member accommodation hole 223. The sealing member 23 has an insertion hole 230 through which the roller shaft 20 is inserted with almost no gap at the center. The hole edge portion of the insertion hole 230 abuts on the engagement step portion 205 of the roller shaft 20.
The sealing member 23 is positioned inside the sealing member accommodation hole 223, and the outer surface is flush with the inner surface 229 of the roller body 22.

The front end side of the roller shaft 20 is inserted into the insertion hole 63 of the shaft hole attachment 6 provided at the front end portion of the component 10 of the hanger base 1, and the engagement pin 207 is engaged with the engagement groove 62 of the shaft hole attachment 6. Combined. A tubular spacer 228 is mounted between the end face of the shaft hole attachment 6 and the blocking member 23. By adjusting the length of the spacer 228 in the axial direction, the distance (position) between the component 10 and the roller body 22 can be adjusted.
Further, a detent nut 24 (generally referred to as a U nut) is screwed and tightened to the screw portion 201 protruding to the opposite side of the hanger base 1. Thereby, the roller shaft 20 is hard to loosen and can be fixed securely. As a result, the structure shown in FIG. 4 is obtained, and the roller body 22 is rotatable.

(Work)
FIG. 5 is a perspective explanatory view showing an embodiment of a trolley hanger according to the present invention.
With reference to FIG. 1 thru | or FIG. 5, the effect | action of the shaft hole attachment 6, the hanger A, and the trolley conveyor C which concern on a present Example is demonstrated.

According to the shaft hole attachment 6 according to the present embodiment, the attachment is driven into and fixed to the shaft hole 13 to which the roller shaft 20 of the hanger base 1 is attached, thereby fixing the base 50 of the conventional hanger 5 as shown in FIG. A function capable of preventing the roller shaft 20 from rotating in the axial circumferential direction can be provided.
That is, by engaging the engaging pin 207 provided on the roller shaft 20 inserted through the shaft hole attachment 6 with the engaging groove 62, the roller shaft 20 can be prevented from rotating in the axial direction. .

  Thus, when the roller shaft 20 and the detent nut 24 are tightened or loosened, for example, when the rollers 2 and 2a are replaced during maintenance, the roller shaft 20 can be fixed even if the hanger A itself is fixed with one hand. The detent nut 24 can be tightened in a state of being fixed so as not to idle.

  That is, the hanger A can tighten the detent nut 24 in a state where the roller shaft 20 is fixed so as not to idle when the rollers 2 and 2a are attached or replaced during maintenance or the like. Thereby, since the operation | work which attaches and exchanges the rollers 2 and 2a can be performed easily and reliably, the operation | work in an operating state is also attained without necessarily stopping a conveyor.

As shown in FIG. 5, the hanger A is hung so that the roller body 22 of the rollers 2, 2 a is placed on the transport rail 3.
The hangers A are connected to the transport rail 3 with a chain or the like (not shown in FIG. 5) to fix the intervals at a required interval, and a plurality of hangers A are hung to constitute a trolley conveyor C.
A hook 4 is hung on the retaining hole 15 of the hanger base 1, and a broiler (not shown) to be processed is suspended from the hook 4.

The roller body 22 of the rollers 2 and 2a has a structure that is rotated by the ball bearing 21. Further, the outer surface 221 of the roller body 22 is sealed, and the inner surface 229 side is also substantially sealed by the sealing member 23. Since blood, water, and dust are less likely to enter the interior, and malfunctions, stains, and breakage due to such penetration are less likely to occur, sufficient durability can be obtained compared to conventional ones.
In addition, since the ball bearing 21 is the center of rotation, the rotation is stable, and there are many ups and downs, sharp curves, etc. in the transport path, and even if a large and sudden unbalanced load is applied to the rollers 2, 2a, Can withstand enough.

  FIG. 6 is a perspective view showing another embodiment of the shaft hole attachment according to the present invention. In the figure, the same parts as those of the shaft hole attachment 6 are denoted by the same reference numerals with a added thereto, and redundant description of the structure is omitted.

  The shaft hole attachment 6a according to the present embodiment has a structure in which a notch portion 64 penetrating from the outer peripheral portion to the inner peripheral portion (insertion hole 63) is provided over the entire length in the axial direction, similar to the shaft hole attachment 6. . In the present embodiment, the cutout portions 64 are provided with the same width, but the present invention is not limited to this, and the portions may have different widths.

  According to this structure, the shaft hole attachment 6a is easily deformed so that the fitting portion 60a has a small diameter. According to this, since the diameter of the fitting part 60a fitted to the shaft hole 13 of the hanger base 1 is not required to be so accurate as compared with the tubular one like the shaft hole attachment 6, it is easy to manufacture. . In addition, if the difference is slight, the shaft hole 13 can be attached to one having a different diameter, and can be used as a combined type for the hanger base 1 of different types.

  Note that the terms and expressions used in the present specification are merely explanatory and not restrictive, and do not exclude terms and expressions equivalent to the above terms and expressions. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.

An example of the shaft hole attachment concerning the present invention is shown, (a) is a perspective view and (b) is a longitudinal section. The perspective view which shows one Example of the hanger which concerns on this invention. The disassembled perspective view of the attachment part of the roller shaft of a hanger. Cross-sectional explanatory drawing of the roller attachment part of a hanger. The perspective explanatory view showing one example of the trolley hanger concerning the present invention. The perspective view which shows the other Example of the shaft hole attachment which concerns on this invention. Cross-sectional explanatory drawing of the roller part of the conventional hanger.

Explanation of symbols

6 Shaft hole attachment 60 Fitting part 61 Projection part 62 Engagement groove 63 Insertion hole A Hanger 1 Hanger base 10, 11 Constituent body 12 Inclination part 13 Shaft hole 15 Stopping hole 2, 2a Roller 20 Roller shaft 200 Large diameter shaft part DESCRIPTION OF SYMBOLS 201 Screw part 202 Diameter small shaft part 205 Engagement step part 206 Pin hole 207 Engagement pin 209 Head part 21 Ball bearing 210 Center hole 22 Roller body 221 Outer surface 222 Outer peripheral surface 223 Sealing member accommodation hole 224 Bearing mounting hole 226 Space part 227 Latching projection 228 Spacer 229 Inner surface 23 Sealing member 230 Insertion hole 24 Detent nut 3 Transport rail 4 Hook C Trolley conveyor 6a Shaft hole attachment 60a Fitting portion 64 Notch

Claims (6)

A hanger base (1) formed so as to be almost Y-shaped as a whole, equipped with rollers (2, 2a) attached to the inside of two upper end sides inclined slightly outward, and transported in a tubular shape It is a roller (2, 2a) of a trolley conveyor hanger used by being hung on a rail (3),
The roller (2, 2a) includes a roller shaft (20), a rolling bearing (21), a roller body (22), and a sealing member (23).
The roller body (22) is made of synthetic resin and is an end-face sealed type whose outer surface (221) is formed in a spherical shape, and the outer peripheral surface (222) is a convex surface having an arc-shaped cross section over the entire circumference. The inner surface (229) of (22) is provided with a sealing member accommodation hole (223) slightly shallower,
  The roller body (22) has a rolling bearing (21) embedded in the center of rotation, and a roller shaft (20) is inserted into the center hole (210) of the rolling bearing (21),
The roller shaft (20) has a large-diameter shaft portion (200) and a small-diameter shaft portion (202) provided with a screw portion (201) on the other end side, the small-diameter shaft portion (202) and the diameter An engagement step (205) is provided at the boundary of the large shaft (200),
Further, the roller shaft (20) is inserted through the roller shaft (20) with almost no gap, and the hole edge portion is provided with an insertion hole (230) that comes into contact with the engagement step portion (205). The sealing member (23) inserted is positioned inside the sealing member receiving hole (223), and the outer surface is flush with the inner surface (229) of the roller body (22). The rolling bearing (21) is sealed or obscured,
Trolley conveyor hanger roller. A shaft hole attachment (6) formed in a tubular shape for fixing to a shaft hole (13) to which the roller shaft (20) of the roller (2, 2a) of the trolley conveyor hanger according to claim 1 is attached,
A fitting portion (60) having an insertion hole (63) that can be fitted and fixed in two axial holes (13) on the upper end side inclined slightly outward of the hanger base (1),
The axial direction of the roller shaft (20) inserted into the fitting portion (60) in cooperation with the engaging means provided on the roller shaft (20), which is formed larger in diameter than the fitting portion (60). A protrusion (61) having means for preventing the rotation of
Trolley conveyor hanger roller shaft hole attachment. The roller shaft (20) has a pin hole (206) provided penetrating in the diameter line direction, and an engagement means provided on the roller shaft (20) is engaged with the pin hole (206). Pin (207)
Engagement groove means for preventing rotation of the shaft circumferential direction of the roller shaft (20) engages with said engaging pin (207) which is provided in a direction crossing the axial direction in the roller shaft (20) (62 )
The roller shaft hole attachment of the roller of the trolley conveyor hanger of Claim 2 . The shaft hole attachment (6) is provided with a notch (64) penetrating from the outer periphery to the inner periphery over the entire length in the axial direction .
The roller shaft hole attachment of the roller of the trolley conveyor hanger of Claim 2 or 3 . A trolley conveyor hanger having a roller shaft hole attachment (6) for a roller (2,2a) of the trolley conveyor hanger according to claim 1 and a roller of the trolley conveyor hanger according to claim 3 or 4 ,
The tip end side of the roller shaft (20) is inserted into the insertion hole (63) of the shaft hole attachment (6) provided on the upper end side of the hanger base (1), and the pin hole (206) 206) and an engagement pin (207) formed longer than the length of the engagement pin (207) is engaged with the engagement groove (62) of the shaft hole attachment (6), and the hanger base ( A detent nut (24) is screwed into the threaded part (201) protruding to the opposite side of 1),
Trolley conveyor hanger. A transport rail, and a trolley conveyor hanger over according to claim 5, wherein applied to the transport rail,
Trolley conveyor.

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