JPH07277422A - Movable shelf - Google Patents

Abstract

PURPOSE:To provide a movable shelf easy to handle a connecting board at the time of installing a brace by suspending a connecting body between a pair of horizontal flange parts and providing a clamping tool to simultaneously connect and fix these connecting body, horizontal flange parts and brace. CONSTITUTION:In the case of installing a brace 12 on a lower part frame body of a movable shelf, firstly a connecting body 21 is suspended and connected between lower surfaces of a pair of horizontal flange parts 15 by a bolt 23 and a first nut 24. Thereafter, a connecting bracket 18 is inserted into the bolt 23 from above, and a second nut 25 is screwed on the head end part of the bolt 23 and clamped. Consequently, the brace 12 is respectively connected between a side lower part frame 9 and an intermediate lower part frame 10 and between both of the intermediate lower part frames 10. As the connecting body 21, the horizontal flange parts 15 and the end part of the brace 12 are simultaneously connected to each other and fixed in this way, it is possible to reduce the number of the bolts. Consequently, it is possible to easily install the brace 12 and to reduce the number of parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable rack which is supported and guided via rails by rails installed in, for example, a warehouse or a factory.

[0002]

2. Description of the Related Art Conventionally, as a moving rack of this kind, there is one shown in Japanese Utility Model Laid-Open No. 3-51706, for example. That is, the movable shelf is supported and guided by rails via a plurality of wheels and is movable, and includes a lower frame body and a shelf portion provided on the lower frame body. The lower frame body includes side lower frames located on both sides with respect to the moving direction, an intermediate lower frame located in the middle,
The side lower frame and the connecting lower frame provided between the intermediate lower frame form a frame.

As shown in FIG. 7, a lower side frame 71 and an intermediate lower frame 72 are respectively provided with a pair of side plate portions 73, an upper plate portion 74 connected between the upper portions of both side plate portions 73, and the side plate. Department
A horizontal flange portion 75 protruding outward from the lower end portion of 73 is formed into a gate shape whose lower surface is open. Braces 76 are connected between the side lower frames 71 and the intermediate lower frames 72 facing each other, and between the intermediate lower frames 72 facing each other. That is, the pair of horizontal flange portions 75 at the front and rear ends of the lower side frame 71.
A connecting plate 77 is provided between the lower surfaces of the pair of horizontal flanges 75 at the front and rear ends of the intermediate lower frame 72, respectively.
Has been bridged. These connecting plates 77 are the first bolts 78.
And a first nut 79, and is connected to the horizontal flange portion 75. The connecting plate 77 is formed to be longer than the width between the pair of horizontal flange portions 75, and both ends of the connecting plate 77 project outward from the pair of horizontal flange portions 75. Brace above
The end of 76 is connected to both ends of the connecting plate 77 via the second bolt 80 and the second nut 81.

According to this, in order to mount the brace 76, first, the connecting plate 77 is connected and fixed to the side lower frame 71 and the intermediate lower frame 72 via the first bolt 78 and the first nut 79, respectively. After that, the end of the brace 76 is connected and fixed to the end of the connecting plate 77 via the second bolt 80 and the second nut 81.

[0005]

However, in the above conventional type, the lower frames 71 and 72 are connected to the connecting plate 77 and the ends of the braces 76 are connected to the connecting plate 77 separately. , A large number of bolts for mounting the brace 76
Since 78, 80 and nuts 79, 81 are required, there is a problem that it takes time. The connecting plate 77 is a pair of horizontal flanges.
Since it is formed longer than the width between 75, the connecting plate 77 is difficult to handle during assembly.

The present invention solves the above problems, and an object of the present invention is to provide a movable shelf which facilitates the attachment of the brace and facilitates the handling of the connecting plate when the brace is attached.

[0007]

In order to solve the above problems, the first aspect of the present invention is a movable rack that is supported and guided by rails via a plurality of wheels and is movable, and includes a lower frame body and the lower frame. Consists of a shelf provided on the body,
The lower frame body is formed by a plurality of juxtaposed lower frames, a connecting frame and a brace connected between the lower frames facing each other, and each of the lower frames is provided with a pair of side plate portions and both side plate portions. An upper plate part that is connected between the upper part of
It is formed of a horizontal flange portion that extends outward from the lower end of the side plate portion, and a connecting body is bridged between the pair of horizontal flange portions at the mounting position of the brace, and the connecting body, the horizontal flange portion, and the brace. It is provided with a fastening tool for simultaneously connecting and fixing the end of the.

In the second aspect of the present invention, the length of the connecting body is formed to be the same as the width between the pair of horizontal flange portions.

[0009]

According to the structure of the first aspect of the present invention, since the connecting body, the horizontal flange portion and the end portion of the brace are connected and fixed at the same time by the fastener, the number of fasteners can be made smaller than in the conventional case. . Therefore, the brace can be easily attached.

According to the structure of the second aspect of the present invention, since the length of the connecting body is formed to be the same as the width between the pair of horizontal flange portions,
The connecting plate is more compact than before, and the connecting plate is easier to handle during assembly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 2 and 6, a plurality of rails 4 are provided between a pair of front and rear fixed shelves 1 via a plurality of wheels 2.
A plurality of movable shelves 5 supported and guided by the movable shelves 5 are arranged so as to be reciprocally movable between the fixed shelves 1. These movable shelves 5 are composed of a lower frame body 6 and a shelf portion 7 provided on the lower frame body 6.

As shown in FIG. 3, the lower frame body 6 is formed.
Is a lower side frame 9 located on both the left and right sides in the moving direction (front-back direction), a pair of left and right intermediate lower frames 10 located inside thereof, and between the side lower frame 9 and the intermediate lower frame 10. A frame 11 is formed by a connecting frame 11 and a brace 12 that are connected between the intermediate lower frames 10.

As shown in FIG. 1, the side lower frame 9 is formed.
And the intermediate lower frame 10, respectively, a pair of left and right side plate portions 13, an upper plate portion 14 continuously provided between the upper portions of both side plate portions 13,
The horizontal flange portion 15 projecting from the lower end of the side plate portion 13 to the outside on the left and right sides is formed into a gate shape having an open lower portion in a front view. As shown in FIG. 3, the side lower frame 9
The two wheels 2 are distributed to the front and rear ends so as to be freely rotatable, and the four wheels 2 are distributed to the front and rear end parts and the front and rear two positions on the intermediate lower frame 10. It is installed freely. Among these, wheels 2 at one end of both middle lower frames 10 are connected by a drive shaft 16, and an electric motor 17 for rotationally driving both wheels 2 is attached to one middle lower frame 10.

As shown in FIGS. 1 and 4, the brace 12 described above is used.
Has flat plate-shaped connecting brackets 18 at both ends, and bolt holes 19 are formed in these connecting brackets 18 so as to penetrate in the vertical direction. At the mounting position of the brace 12, a bolt hole 20 for mounting the brace is formed vertically through the horizontal flange portion 15, and a channel-shaped connecting body 21 is provided between the lower surfaces of the pair of horizontal flange portions 15. It has been bridged. Bolt holes 22 are formed at both ends of these connecting bodies 21 in the vertical direction at the same intervals as between the bolt holes 20 of the pair of horizontal flange portions 15. Further, the length of the connecting body 21 is formed to have the same dimension as the width between the pair of horizontal flange portions 15.

The connecting bracket 18 of the brace 12 is located above the horizontal flange portion 15, and the bolts 23 are bolt holes 22 of the connecting body 21, bolt holes 20 of the horizontal flange portion 15 and bolt holes of the connecting bracket 18 of the brace 12. 19 is inserted from the bottom to the top. Above horizontal flange 15 and brace
A first nut 24 is provided between the 12 connecting brackets 18 and the bolt 23, and a second nut 25 is screwed onto the tip of the bolt 23 protruding above the connecting bracket 18. Is provided. Further, spring washers 26 for locking are provided between the first nut 24 and the horizontal flange portion 15 and between the second nut 25 and the connecting bracket 18 of the brace 12, respectively. The bolt 23 and the first nut 24
The second nut 25 and the second nut 25 are an example of a fastener for simultaneously connecting and fixing the connecting body 21, the horizontal flange portion 15, and the end portion of the brace 12.

Incidentally, as shown in FIG. 1, the lower side frame 9
Since it is not necessary to connect the brace 12 to the outer horizontal flange portion 15, the horizontal flange portion 15 and the outer end portion of the connecting body 21 are connected only by the bolt 23 and the first nut 24.

As shown in FIGS. 3 and 4, the connecting frame 11 is a hollow member having a quadrangular cross section, and a recess 29 is formed on the front surface thereof over the entire length. Of these, forklift guide rails 30 are attached to the connecting frames 11 located at the front and rear ends of the lower frame body 6. These guide rails 30 include an upper plate portion 31 and a lower plate portion 32.
The front plate portion 33, which is continuously provided between the upper plate portion 31 and the lower plate portion 32, is formed into a channel shape having an open rear side. Nuts 34 are attached to the inner surface of the front plate portion 33 at a plurality of positions by welding, and the tip portion of a bolt 35 inserted forward from the rear of the connecting frame 11 is screwed into the nut 34, whereby the guide rail 30 is formed. , Open side connecting frame
It is attached to the front surface of the connection frame 11 toward the 11 side. At this time, the upper plate portion 31 is located above the concave portion 29, and the lower plate portion 32 is located below the concave portion 29.
Is mounted across the recess 29. The guide rail
A cylindrical spacer 36 is provided between the front plate portion 33 of the 30 and the inner surface of the recess 29 of the connecting frame 11.
Inside the 36, the bolt 35 is inserted and the nut 34 is inserted. Also, the head of the bolt 35 and the connecting frame
A flat washer 37 for preventing the deformation of the connecting frame 11 is provided between the rear surface of the bolt 11 and the rear surface of the bolt 11 so as to be fitted onto the bolt 35.

As shown in FIGS. 1, 3, and 5, corner guide bodies 39 are provided on the outer surfaces of the front and rear ends of each side lower frame 9, respectively. These corner guide bodies 39 are formed in a fan shape in a plan view by the vertical plate portions 40 and 41 opened at right angles to each other and the circular arc plate 42 provided between the tips of these vertical plate portions 40 and 41. . A reinforcing plate 43 is horizontally attached to an intermediate portion of the corner guide body 39. One of the vertical plate portions 40 is brought into contact with the outer surface of the side plate portion 13 outside the side lower frame 9 and connected by the bolts and nuts 44, so that each corner guide body 39 is moved to the side lower frame 9
Installed on. A protective member 45 is provided between the corner guide bodies 39 that face each other in the front and rear. These protection members 45 are formed in a channel shape, and end plates 46 are provided at both front and rear ends of the protection member 45. These end plates 46 are the other vertical plate portions of the corner guide body 39.
By being abutted against 41 and connected by bolts and nuts 47, the protective member 45 is attached between the front and rear of both corner guide bodies 39 with the open surface facing the lower side frame 9.
The front surface of the guide rail 30, the outer surface of the circular arc plate 42 of the corner guide body 39, and the outer surface of the protective member 45 are set to be substantially flush with each other.

As shown in FIGS. 2 and 6, the fixed shelf 1 is
Are a plurality of front vertical columns 50 arranged at predetermined intervals in the left-right direction (width direction), and a plurality of front vertical columns arranged at predetermined intervals in the left-right direction (width direction). It has a rear vertical column 51 opposed to 50. Of these, front vertical columns
Between the lower part of 50, same as the moving shelf 5, the above guide rail
30 is installed. Further, the corner guide bodies 39 are attached to the outer surfaces of the front vertical columns 50 located at both left and right ends and the outer surfaces of the rear vertical columns 51 located at both left and right ends, similarly to the moving shelves 5. There is. A protective member 45 is provided between the corner guide bodies 39 facing each other in the front-rear direction, like the movable rack 5. The guide rail 30, the corner guide body 39, and the protection member 45 of the fixed shelf 1 are the guide rail 30, the corner guide body 39, and the protection member 45 of the movable shelf 5.
It is provided on the same level as and.

The loading and unloading of the fixed shelf 1 and the movable shelf 5 is carried out by a side forklift 52. On the left and right sides of the vehicle body 53 of the side forklift 52, the guide rail 30, the corner guide body 39 and the protective member are provided.
A guide roller 54, which can freely come into contact with 45, is mounted so as to be freely rotatable.

The operation of the above structure will be described below.
When attaching the brace 12 to the lower frame body 6 of the movable shelf 5, as shown in FIG. 1, first, the bolt 23 and the first nut 24 are attached.
The connecting body (21) is bridged between the lower surfaces of the pair of horizontal flange portions (15) by and so as to be connected. Then, the connecting bracket 18 of the brace 12 is inserted into the bolt 23 from above, and the second nut 25 is screwed onto the tip of the bolt 23 and tightened. As a result, the brace 12 is connected between the side lower frame 9 and the intermediate lower frame 10 and between the intermediate lower frames 10, respectively.

In this way, since the connecting body 21, the horizontal flange portion 15 and the end portion of the brace 12 are simultaneously connected and fixed by the single bolt 23, the number of bolts can be made smaller than in the conventional case. Therefore, the brace 12 can be easily attached, and the cost can be reduced by reducing the number of parts.

Further, since the length of the connecting body 21 is formed to be the same as the width between the pair of horizontal flange portions 15, the connecting body 21 becomes compact as compared with the conventional one, and the connecting body 21 is easy to handle during assembly.

After assembling the fixed shelf 1 and the movable shelf 5 and installing them on the site, the movable shelf 5 is moved to
As shown in FIG. 6, a working passage 55 is formed in front of the target movable rack 5 or fixed rack 1. Then, the side forklift 52 is introduced into the work passage 55 to load / unload the target movable shelf 5 or the fixed shelf 1, and then the side forklift 52 is withdrawn from the work passage 55. As described above, by using the side forklift 52, the width of the work passage 55 can be narrowed. Further, when the side forklift 52 enters and leaves the work passage 55, the guide rollers 54 provided on the vehicle body 53 and the guide rails 30 and the corner guide bodies located on both sides of the work passage 55.
Side forklift 52
Guides into and out of the work passage 55 while being guided by the guide rail 30 and the corner guide body 39 via the guide roller 54. Therefore, even if the work passage 55 has a narrow width, the side forklift 52 can be easily moved to the work passage 55.
You can enter and leave.

Further, as shown by the phantom line in FIG. 6, when the side forklift 52 travels to the side of each fixed shelf 1 and the movable shelf 5, even if the side forklift 52 is operated incorrectly, the guide roller 54 is protected. By contacting the member 45, the side forklift 52 is guided in the front-rear direction along the protection member 45 via the guide rollers 54, and avoids a direct collision between the vehicle body 53 of the side forklift 52 and the shelves 1, 5. To be Therefore, it is possible to prevent the shelves 1 and 5 and the side forklift 52 from being damaged.

[0026]

As described above, according to the first aspect of the present invention, since the connecting body, the horizontal flange portion and the end portion of the brace are connected and fixed at the same time by the tightening tool, the number of the tightening tool is smaller than the conventional one. can do. Therefore, the brace can be easily attached, and the cost can be reduced by reducing the number of parts.

According to the second aspect of the present invention, since the length of the connecting member is formed to be the same as the width between the pair of horizontal flange portions, the connecting plate becomes compact as compared with the conventional one, and the connecting plate is easy to handle during assembly. Become.

[Brief description of drawings]

FIG. 1 is a front view showing an attachment structure of a brace of a movable shelf according to an embodiment of the present invention.

FIG. 2 is a side view of a movable rack.

FIG. 3 is a plan view of a lower frame body of the movable shelf.

FIG. 4 is a view on arrow AA in FIG.

FIG. 5 is a detailed view of a B part in FIG.

FIG. 6 is a plan view of a movable rack.

FIG. 7 is a front view showing a conventional brace attachment structure for a movable rack.

[Explanation of symbols]

 2 wheels 4 rails 5 moving shelves 6 lower frame 7 shelves 9 side lower frame 10 middle lower frame 11 connecting frame 12 brace 13 side plate 14 upper plate 15 horizontal flange 21 connecting body 23 bolts (fasteners) 24 1 nut (fastening tool) 25 2nd nut (fastening tool)

Claims (2)

[Claims] 1. A movable shelf that is supported and guided by rails via a plurality of wheels and is movable, and comprises a lower frame body and a shelf portion provided on the lower frame body. Is formed by a plurality of lower frames arranged in parallel, and a connecting frame and a brace that are connected between opposing lower frames, and each of the lower frames is provided between a pair of side plate portions and upper portions of both side plate portions. An upper plate part that is continuously installed,
It is formed of a horizontal flange portion protruding outward from the lower end of the side plate portion, and a connecting body is bridged between the pair of horizontal flange portions at the mounting position of the brace, and the connecting body, the horizontal flange portion, and the brace. A movable shelf provided with a fastener for simultaneously connecting and fixing the end of the mobile shelf. 2. The movable shelf according to claim 1, wherein the length of the connecting body is formed to be the same as the width between the pair of horizontal flange portions.