JPH11180519A - Rail suspending hanger and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight while keeping a necessary strength, and improve the appearance and mass productivity by forming the whole body into substantially reverse U-shape by use of an aluminum extrusion structural angle, and providing a plurality of weight reducing through-holes extending through in the thickness direction. SOLUTION: A rail suspending hanger 3 is formed of a base part 7 and a leg part 8 which are integrally formed into substantially reverse U-shape, and it has a plurality of weight reducing through-holes 9 extending through in the thickness direction. The space between the openings of both internal extended grooves 10 in the base part 7 of the hanger 3 is set substantially equal to the lateral width of the lower flange part 2a of a beam 2, and the part between the openings is brought into face contact with the lower surface of the lower flange 2a. The hanger 3 is fixed to the beam 2 through hexagon head bolts 15 inserted into the internal extended grooves 10, hanger fixing tools 14, and hexagon nuts 16. Lateral rails 4, 4 are put on the parts laterally inward from rail engaging grooves 12 on the upper surface of each protruding part 11 of the lateral, leg parts 8, and fixed to the hanger 3 through hexagon head bolts 21 screwed to screw holes 13 and the lateral inner side surfaces of the grooves 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for hanging a rail on which a hook hooking a meat runs on a beam provided on a ceiling in a meat conveying apparatus provided in a meat storage warehouse, for example. About.

[0002] In this specification, the term "aluminum" shall include aluminum alloys in addition to pure aluminum.

[0003]

2. Description of the Related Art As a meat transporting device provided in a meat storage warehouse, a beam provided on a ceiling of a meat storage warehouse is provided.
A plurality of rail hangers fixed to the beam at intervals in the length direction, a rail suspended from the hanger, and a plurality of hooks for hooking meat and running along the rails Are known.

Conventionally, as the above-mentioned hanger for hanging a rail,
An aluminum die-cast product was used.

[0005]

However, the conventional hanger has a problem that the weight increases in order to secure necessary strength. Further, since the aluminum die-cast product has poor surface treatment properties, it cannot be subjected to anodic oxidation treatment or coating treatment, and thus has a problem that its appearance cannot be improved. Further, there is a problem that the production work of the aluminum die-cast product is troublesome and the mass productivity is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to reduce the weight while maintaining the required strength, to improve the appearance, to obtain a rail which is easy to manufacture and excellent in mass productivity. An object of the present invention is to provide a hanging hanger.

[0007]

Means for Solving the Problems and Effects of the Invention A rail hanger according to the present invention is a hanger for holding a rail suspended from a beam provided on a ceiling, and is entirely made of extruded aluminum. It is formed in a substantially inverted U-shape and has a plurality of through holes for reducing the weight penetrating in its thickness direction.

According to the rail hanger of the present invention,
Since it has a plurality of through holes for reducing the weight, the weight can be reduced. In addition, the function of the wall that separates the adjacent through holes for weight reduction can prevent the strength from being reduced. Further, since the whole is formed of the extruded aluminum material, the surface treatment property is excellent, and the appearance can be easily improved by anodic oxidation treatment, painting and the like. Further, since the whole is formed of an extruded aluminum material, it is easy to manufacture and excellent in mass productivity.

A method for manufacturing a rail hanger according to the present invention is a method for manufacturing a rail hanger according to claim 1, wherein the aluminum extrusion type has a substantially inverted U-shaped cross section having a plurality of hollow portions. After the material is formed, the extruded aluminum material is cut into a predetermined length so as to be perpendicular to the direction of extrusion.

According to the method for manufacturing a rail-hanging hanger of the present invention, after forming a substantially inverted U-shaped aluminum extruded section having a plurality of hollow portions, the extruded aluminum section is formed into a predetermined length. Since the cutting is performed, the manufacturing operation is facilitated and the mass productivity is excellent.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. Throughout the drawings, the same components and portions are denoted by the same reference characters, and description thereof is omitted.

In the following description, the left and right in FIG. 2 are referred to as left and right, and the front side in FIG. 2 is referred to as front, and the opposite side is referred to as rear.

FIG. 1 shows a meat conveying apparatus of a meat storage warehouse using a hanger according to the present invention, and FIGS.

In FIG. 1, a meat transport device is a beam having an I-shaped cross section fixedly provided on a ceiling (1) of a meat storage warehouse.
(2), a plurality of rail hanging hangers (3) fixed to the beam (2) at intervals in the longitudinal direction, and a pair of left and right rails suspended from the hanger (3). Rail (4) and multiple hooks that hook the meat and run along both rails (4)
(6)

As shown in FIGS. 2 and 3, the rail hanger 3 is substantially U-shaped when viewed from the front and has a horizontal base.
(7) and a pair of left and right legs (8) integrally formed at the left and right ends of the base (7), and the whole is formed of an extruded aluminum material. Base (7) and legs (8) of hanger (3)
A plurality of through holes 9 for reducing the weight are formed in the thickness direction, that is, in the front-rear direction. Hanger
An internal enlarged groove (10) that opens upward and extends in the front-rear direction at a portion between the through holes (9) at the left and right ends and the second through hole (9) from the left and right ends at the base (7) of (3). Are formed. Both front and rear ends of the internal enlarged groove (10) are open on both front and rear surfaces of the hanger (3). At the lower end of the leg (8) of the hanger (3), a protrusion (11) inward in the left-right direction is integrally formed, and a rail engagement groove (12 ) Is formed. Also, the rail engagement groove on the leg (8)
Screw holes extending in the left-right direction on the outer part in the left-right direction of (12)
(13) is formed in a penetrating shape.

The manufacturing method of the hanger (3) is as follows.
That is, after forming an extruded aluminum material having the same cross-sectional shape as the shape of the hanger (3) viewed from the front, the extruded aluminum material has a predetermined length (a predetermined thickness) so as to be perpendicular to the extrusion direction. Cut). Next, the cut piece is subjected to an appropriate surface treatment. Thus, the hanger (3) is manufactured.

As shown in FIGS. 4 and 5, the hanger (3)
The hanger fixture (14), which has a substantially rectangular shape as viewed from the front and has a through hole (14a) in the vertical direction, and a hexagon bolt (1
It is fixed to the beam (2) as follows using 5) and the hexagon nut (16). The horizontal width of the horizontal lower flange portion (2a) of the beam (2) is almost equal to the distance between the openings of the internal expansion grooves (10) of the base (7) of the hanger (3), and the upper surface of the base (7) The portion between the openings of the two internal enlarged grooves (10) is brought into surface contact with the lower surface of the lower flange portion (2a) of the beam (2). Internal expansion groove
In (10), the head (15a) of the hexagon bolt (15) is
(10) is inserted from one end side before or after, and its shaft (15
b) extends above the lower flange portion (2a) of the beam (2) through the opening of the internal expansion groove (10). Hex bolt (15)
The head (15a) has a size such that it does not come out upward from the opening of the internal enlarged groove (10). Shaft of hexagon bolt (15)
The part protruding above the lower flange part (2a) in (15b) is passed through the through hole (14a) of the hanger fixture (14), and the part protruding above the hanger fixture (14) Hex nut (16) is threaded. Then, with the left and right outer ends of the hanger fixture (14) abutting against the upper surface of the base (7) of the hanger (3), the inner end of the hanger fixture (14) in the left and right direction and the hanger (3) are fixed. Lower flange (2a) of beam (2) with base (7)
The hanger (3) is fixed to the beam (2) by pinching.

Each rail (4) has a rail body (17) made of an extruded aluminum member having a substantially inverted L-shaped cross section, and a stainless steel cover for covering the upper surface of the rail body (17) and the inner surface in the left-right direction.
(18). The left and right rails (4) are symmetrical, and the left rail (4) will be described below with reference to FIG. The rail main body (17) of the left rail (4) has a horizontal wall (17a) having an upper surface serving as a rail tread surface, and first and second two hanging parts integrally formed on both left and right ends of the horizontal wall (17a). It consists of walls (17b) and (17c). The vertical length of the second hanging wall (17c) is longer than the vertical length of the first hanging wall (17b). On the upper left side of the first hanging wall (17b),
Cover opening groove (20) that opens upward and extends lengthwise
Are formed. At the bottom of the right side of the second hanging wall (17c),
Cover opening groove (19) that opens upward and extends lengthwise
Are formed. The lower part of the right side surface of the second hanging wall (17c) is inclined leftward downward. The cover (18) is formed from a stainless steel plate by roll forming into an approximately inverted L-shape in cross section, and includes a horizontal portion (18a) that covers the upper surface of the horizontal wall (17a) of the rail body (17), 18a) and a first hanging wall of the rail body (17) integrally formed on the left edge thereof
A first hanging portion (18b) covering a portion above the groove (20) on the left side surface of the rail (17b); and a second hanging portion of the rail body (17) integrally formed on the right edge of the horizontal portion (18a). A second hanging portion (18) covering a portion of the right side surface of the wall (17c) above the groove (19).
c) And the first hanging part (18b) of the cover (18)
Into the groove (20), press the left side wall portion (20a) of the groove (20) to the right, and caulk the same, and also fit the lower edge of the second hanging portion (18c) into the groove (19). Fit inside and groove
The cover (18) is fixed to the rail body (17) by pressing the right wall portion (19a) of (19) to the left and crimping it.

The rail (4) is fixed to the hanger (3) as follows. The first hanging wall (17b) of the rail body (17) is fitted into the rail engaging groove (12) of the leg (8) of the hanger (3), and the horizontal wall (17a) of the rail body (17). The outer portion in the left-right direction is placed on the inner portion in the left-right direction with respect to the rail engaging groove (12) on the upper surface of the protrusion (11) of the leg (8). Then, the tip of a hexagon bolt (21) screwed into the screw hole (13) from the outside in the left-right direction is attached to the first end of the rail body (17).
The rail (4) is brought into contact with the hanging wall (17b), and the first hanging wall (17b) is clamped between the tip of the hexagon bolt (15) and the inner side surface of the groove (12) in the left-right direction. 3) Fixed to.

As shown in FIG. 2, the hook (6) is arranged at a portion between the left and right rails (4), and its upper end protrudes above the upper surface of the rail (4). A horizontal axis (22) extending in the left-right direction is fixed to a portion of the hook (6) projecting above the upper surface of the rail (4) so as to pass through the hook (6). Rollers (23) rotatable around the horizontal axis (22) are attached to both left and right ends of the horizontal axis (22). Each roller (23) rolls on the horizontal portion (18a) of the cover (18) of the left and right rails (4), thereby reducing the wear of the horizontal wall (17a) of the rail body (17). Has been prevented. When the hook (6) swings in the left-right direction, the hook (6) is moved to the second hanging portion (18) of the cover (18).
c), thereby contacting the second hanging wall of the rail body (17).
(17c) wear is prevented.

FIGS. 7 and 8 show a first modification of the structure for fixing the hanger (3) to the beam (2).

7 and 8, the base (7) of the hanger (3) is not provided with an internal enlarged groove (10), and a through hole (30) extending in the front-rear direction is formed in this portion. ing.
The through hole (30) serves to reduce the weight of the hanger (3) and to receive the head (15a) of the hanger fixing hexagon bolt (15). Left and right outer walls (3
Notches (36) through which the heads (15a) of the hexagon bolts (15) can pass are formed in the partition wall (35) between the through hole (9) and the through hole (30) at both the right and left ends. ing. The two through holes (9) and (30) and the two notches (36) form a bolt head insertion part (37) extending in the left and right direction from the left and right ends of the base (7) of the hanger (3). Have been. At the center in the front-rear direction of the upper wall portion (31) that straddles the through hole (30) in the base (7) of the hanger (3) and the through holes (9) at both left and right ends, the left and right inner ends And the shaft (15b) of the hexagon bolt (15)
There is formed a notch (32) that can pass through. The deepest part of the notch (32) is located near the partition wall (33) between the through hole (30) and the through hole (9) adjacent to the through hole (30) in the left-right direction.

In this case, the head (15a) of the hanger fixing hexagon bolt (15) passes through the bolt head insertion part (37) and passes through the through hole (3).
0), and its shaft (15b) extends through the notch (32) above the lower flange (2a) of the beam (2). Others are the same as in the case shown in FIG.
The hanger (3) is fixed to the beam (2).

Further, a shaft portion of a hexagon bolt (15) for fixing a hanger.
(15b) can be moved to the left and right inside the notch (32), so that the hanger fixing device (14) and the hanger fixing hex bolt (15) must be moved in accordance with the lower flange (2a). Can be. Therefore, the lower flange (2
Even if the width of a) changes slightly, the hanger fixture (14),
The hanger (3) can be fixed to the beam (2) with the hanger fixing hexagon bolt (15) and the hexagon nut (16).

FIG. 9 shows a second modification of the structure for fixing the hanger (3) to the beam (2).

In FIG. 9, the base (7) of the hanger (3) is not provided with an internal enlarged groove (10), and a screw hole (40) having a bottom is formed in this portion from the upper surface thereof. I have. Screw holes (4
The lower part of the hanger fixing stud bolt (41) is screwed into 0). The upper end of the stud (41) extends above the lower flange (2a) of the beam (2). Then, the hanger (3) is fixed to the beam (2) in the same manner as shown in FIG. 4 by utilizing the portion of the long screw bolt (41) projecting above the lower flange portion (2a). You.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a meat transport device of a meat storage warehouse using a hanger according to the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an exploded perspective view showing a main part of FIG. 1 in an enlarged manner.

FIG. 4 is an enlarged vertical cross-sectional view showing a fixing structure of the hanger to the beam, as viewed from the front.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is an enlarged vertical cross-sectional view showing a structure for fixing a rail to a hanger as viewed from the front.

FIG. 7 is a view corresponding to FIG. 4 showing a first modification of the fixing structure of the hanger to the beam.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a view corresponding to FIG. 4, showing a second modification of the fixing structure of the hanger to the beam.

[Explanation of symbols]

 (1): Ceiling (2): Beam (3): Hanger for rail suspension (4): Rail (9) (30): Through hole for weight reduction

Claims (2)

[Claims] 1. A hanger for suspending a rail on a beam provided on a ceiling, wherein the hanger is entirely formed in an inverted U-shape from an extruded aluminum material, and has a plurality of weights penetrating in a thickness direction thereof. Rail hanger with through holes for mitigation. 2. A method for manufacturing a hanger for rail suspension according to claim 1, wherein an aluminum extruded section having a substantially inverted U-shaped cross section having a plurality of hollow portions is formed, and then extruded. Of a hanger for suspending rails, which is cut at a predetermined length so as to be perpendicular to the direction of extrusion.