JP2008049926A - Assembly type base plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure wherein a base plate mounted on a truck frame is an assembly type one. <P>SOLUTION: The assembly type base plate comprises an end part base plate constitution part having a pair of through holes for supporting a rack frame on both right and left sides, and a pair of connection piece constitution parts subjected to recess and protrusion engagement on the other end side on right and left; and an intermediate base plate constitution part having a pair of connection piece constitution parts subjected to recess and protrusion engagement on one side of front and rear both end sides on right and left, and a pair of connection piece constitution parts subjected to recess and protrusion engagement on the other side on right and left so as to be opposite from the one side. One short floor plate is assembled by a pair of the end part base plate constitution parts, or a long floor plate is assembled by the pair of the end part base plate constitution parts and one or a plurality of the intermediate base plate constitution parts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure in which a base plate which is attached to a cart frame and serves as a cart body is an assembly type.

The cart body 50 exemplified in Japanese Utility Model Laid-Open No. 6-3771 has a pair of side wall bars 52 made of a metal material as shown in FIGS.
A central connection plate 53A is fixed by welding or the like so as to connect substantially the center portions of the pair of side wall bars 52, 52, and similarly end portions so as to connect both ends of the pair of side wall bars 52, 52. The connection plate 53B is fixed by welding or the like.
Square tube-like shelf frame support pipes 53 are fixed to the left and right pairs at both ends of the pair of side wall bars 52, 52 by welding or the like.
A rubber bumper 54 is fixed to the end of the shelf frame support pipe 53 to form a carriage frame 51.
A base plate 50A made of a synthetic resin material is fixed to the upper surface of the carriage frame 51 by a plurality of bolts and nuts, and the base plate 50A made of the synthetic resin material has a portion corresponding to the shelf frame support pipe 52A. Each has a through hole 52B.
In addition, a pair of fixed casters 59 are attached at locations near the both sides of the central connection plate 53 of the carriage frame 51, and the pair of fixed casters 59 are installed at locations near the both sides of the end connection plate 53B. A pair of swivel casters 58 having a ground contact surface position lower than the ground contact surface position are respectively attached.
In this case, it is necessary to manufacture the bogie frame 51 and the base plate 50A one by one with predetermined dimensions, and there is a problem that the number of parts increases and becomes complicated.
On the other hand, in the transport cart disclosed in Japanese Patent Laid-Open No. 2001-247042, a configuration in which cart bodies having casters are coupled in a planar direction using a coupling member is disclosed. A first connecting member that is supported on one of the opposite sides of the base plate and is connected in parallel in the longitudinal direction of the one opposing side surface, and one of the base plates Disclosed is a configuration in which engagement holes are provided on opposite sides of the base plate from the other diagonal of the base plate and engaged with the first connecting member at the engagement position of the adjacent cart body. ing.
However, this configuration is a configuration in which independent trolley bodies are connected to each other, and the base plate formed on the trolley body has the same width and only different length. If they are different, it is necessary to manufacture them with predetermined dimensions as in the conventional example.
ACT 6-3771 Japanese Patent Laid-Open No. 2001-247042

  The present invention has been made in view of the above circumstances, and the main problem is that the base plate to be attached to the main body of the carriage is divided so that the base plates having different lengths can be assembled using common parts. It is in providing the structure of the trolley | bogie main body made into.

In the invention of claim 1,
A pair of through-holes for shelf frame support on the left and right sides on one end side in the longitudinal direction of the floorboard, and one side from the center in the short direction on the other end side. A first connecting piece component having a first screw hole in the center as a convex part, and a second screw hole in the center as a horizontal lower convex part with the upper part in the thickness direction notched and the lower part left from the center in the left-right direction. An end base plate constituent part as a second connecting piece constituent part provided with,
One end side in the longitudinal direction of the floorboard is a third connecting piece component having a third screw hole in the center, with one from the center in the left-right direction as a lower convex part in the horizontal direction with the upper part in the thickness direction cut out and the lower part left. The other side from the center in the left-right direction is the fourth connecting piece constituting part having a fourth screw hole in the center as a laterally upper convex part with the lower part in the thickness direction cut out and the upper part left. Then, a fifth connecting piece constituent part provided with a fifth screw hole in the center as a laterally upward convex part leaving a lower step in the thickness direction on the side facing the third connecting constituent piece constituent part, Intermediate base plate configuration with a sixth connecting piece constituent portion provided with a sixth screw hole in the center as a laterally facing lower convex portion leaving the lower step in the upper side in the thickness direction on the side facing the fourth connecting constituent piece constituent portion And consists of
Rotate one of the two end base plate components 180 degrees to the left and right to hang each connecting piece component, and fasten it to assemble a short base plate, or the two end base plate configurations One or a plurality of intermediate base plate constituent portions are interposed between the portions, each connecting piece constituent portion is hooked and screwed to assemble a long base plate.

As described above, the present invention can assemble a base plate having a predetermined length by using two types of constituent parts, that is, an end base plate constituent part and an intermediate base plate constituent part. A number of types of base plates can be formed.
Moreover, since each component is small, the storage space until assembly can be saved.

  Embodiments of the present invention will be described below with reference to the drawings.

The assembly type base plate according to the first embodiment shown in FIGS. 1 to 5 includes two types of constituent parts, an end base plate constituent part A and an intermediate base plate constituent part B.
The end base plate constituting part A is a floor plate constituting part for a carriage made of a substantially rectangular synthetic resin panel, and left and right (up and down in the figure) on one end side in the longitudinal direction (lateral direction in the figure) of the floor board. ) A pair of through-holes 2B for supporting the shelf frame are provided on both sides, and a pair of left and right proximal screw holes 20 are provided on the rear side, and the first connecting piece is connected to the other end side from the center in the short direction. The other component is the second connecting piece component 12.

The 1st connection piece structure part 11 is made into the horizontal upper convex piece part which notched the lower stage of the thickness direction and left the upper stage, and provided the 1st screw hole 21 in the center of the plane.
The 2nd connection piece structure part 12 is made into the horizontal downward convex piece part which notched the upper stage of the thickness direction and left the lower stage, and provided the 2nd screw hole 22 in the center of the plane.
Moreover, in the example of illustration, the through-hole 2B for shelf frame support is arrange | positioned in the location A1 which protrudes outward in both the left and right corners of the one end side of the longitudinal direction of a floor board.

  The intermediate base plate component B is a cart floor plate component composed of a substantially rectangular synthetic resin panel. In the example shown in the figure, a columnar reinforcing beam 19 protrudes downward in the center of the bottom surface along the horizontal width direction. One side from the center in the left-right direction on the one end side in the longitudinal direction of the floor board, one is the third connecting piece constituent part 13, the other is the fourth connecting piece constituent part 14, and the other end side in the longitudinal direction of the floor board 1A The fifth connection piece component 15 is provided on the side facing the third connection component piece component 13, and the sixth connection piece component 16 is provided on the side facing the fourth connection component piece component 14. .

The third connecting piece constituting portion 13 has one side from the center in the left-right direction as a horizontal lower convex piece portion in which the upper step in the thickness direction is notched and the lower step is left, and a third screw hole 23 is provided in the center of the plane.
The fourth connecting piece constituting portion 14 is formed as a horizontally-facing upper convex piece portion in which the other is removed from the center in the left-right direction while the lower step in the thickness direction is notched and the upper step is left, and a fourth screw hole 14 is provided in the center of the plane.

In addition, the fifth connecting piece constituent portion 15 is a lower side in the horizontal direction in which the upper side in the thickness direction is notched and the lower step is left on the other end side in the longitudinal direction of the floor board 1A on the side facing the third connecting constituent piece constituent portion 13. A convex piece portion is provided, and a fifth screw hole 25 is provided in the center of the plane.
The sixth connecting piece constituent part 16 is a laterally upper convex piece part in which the upper stage in the thickness direction is left on the side opposite to the fourth connecting constituent piece constituent part 14 on the other end side in the longitudinal direction of the floor board 1A and the lower stage is notched. A sixth screw hole 16 is provided at the center.
Here, the upper and lower convex pieces of the first connecting piece constituting part 11 to the sixth connecting piece constituting part 16 are formed by hooking the convex pieces of the upper convex piece part to the notch concave parts of the lower convex piece part. It can be fixed together by aligning the top and bottom and fixing with screws and bolts (see Figure 5))

  Therefore, when assembling the floor board 1A using the end base plate constituent part A and the intermediate base plate constituent part B, as shown in FIGS. 1 and 2, the end base plate constituent part A is arranged on the left side in the drawing. In the middle, the intermediate base plate constituent part B is arranged, and the end base plate constituent part (referred to as A ′ for convenience of description) whose direction is changed by 180 ° is arranged on the right side.

  And the 1st connection piece structure part 11 of the edge part baseplate structure part A and the 4th connection piece structure part 14 of the intermediate | middle baseplate structure part B are fitted, and the 2nd connection of the end part baseplate structure part A similarly. The piece connecting portion 12 and the third connecting piece constituting portion 13 of the intermediate base plate constituting portion B are fitted, the first screw hole 21 and the fourth screw hole 24 are aligned and tightened, and the third screw hole 23 The second screw hole 22 is aligned and tightened to connect the end base plate component A and the intermediate base plate component B on the same plane (see FIGS. 1A and 1B).

Next, the sixth connecting piece constituent part 16 of the intermediate base plate constituent part B and the second connecting piece constituent part 12 ′ of the end base plate constituent part A ′ are fitted, and the fifth of the intermediate base plate constituent part B is fitted. The connecting piece constituting portion 15 and the first connecting piece constituting portion 11 ′ of the end base plate constituting portion A ′ are fitted, the first screw hole 26 and the second screw hole 22 ′ are aligned and screwed, The first screw hole 21 ′ and the fifth screw hole 25 are aligned and tightened to connect the intermediate base plate component B and the end base plate component A ′ on the same plane.
As a result, the floor board 1A in which the end base plate constituent part A, the intermediate base plate constituent part B, and the end base plate constituent part A ′ whose direction is changed by 180 ° is combined in series is assembled (FIG. 2A). b)).

With the assembly of the floor plate 1A as a basic form, the floor plate 1A having a different length can be assembled by increasing or decreasing the intermediate base plate component B.
That is, the floor board 1A uses the end base plate constituent part A ′ by removing the intermediate base plate constituent part B ′ and changing the end base plate constituent part A and the end base plate constituent part A ′ by 180 °. This is the case (see FIGS. 3A and 3B).

In this case, the first connecting piece constituent part 11 of the end base plate constituent part A and the second connecting piece constituent part 12 ′ of the end base plate constituent part A ′ are fitted together, and the end base plate constituent part A 2 connecting piece constituent part 12 and first connecting piece constituent part 11 'of end base plate constituent part A' are fitted, first screw hole 21 and second screw hole 22 'are aligned and screwed, The first screw hole 21 'and the second screw hole 22 are aligned and tightened to connect the end base plate constituent part A and the end base plate constituent part A' on the same plane, and FIG. A floor board 1A combined in a series as shown in (b) is assembled.
The case where the intermediate base plate component B is increased also conforms to the above-described embodiments, and thus the description thereof is omitted.

Next, a cart frame 1 for a transport cart shown in FIGS. 6 to 9 has a pair of side wall bars 2 made of a metal material.
Square tube-like shelf frame support pipes 2A are fixed to both ends of the pair of side wall bars 2 and 2 by welding or the like.
A rubber bumper 4 is fixed to the end of the shelf frame support pipe 2A.

In addition, in the present embodiment, the connection piece 3 having the same shape is used as a member for connecting the pair of side wall bars 2 and 2 to function as a reinforcing bar and fixing the floor plate 1A and casters. .
As shown in FIG. 6, the connection piece 3 includes an upper piece 31 that extends horizontally and has screw holes 5 a on both left and right sides, a hanging piece 32 that bends vertically from the base end of the upper piece 31, It consists of a lower piece 33 extending horizontally in the opposite direction to the upper piece 31 at the lower end of the hanging piece 32.

In the present embodiment, the upper piece portion 31 has a pair of protruding piece portions 31a and 31a protruding outward on the left and right sides, and the screw hole 5a is formed in the protruding piece portion 31a.
The lateral width of the upper piece 31 is set to be the same as the distance between the pair of side wall bars 2 and 2 when the carriage frame 1 is formed.

The drooping piece 32 is bent at a right angle at the base end of the upper piece 31, and is set to have the same width as the upper piece 31.
Further, the height of the hanging piece 32 is set to be the same as the height of the side wall bar 2.
The lower piece portion 33 is bent at a right angle at the lower end of the hanging piece portion 32 and extends horizontally in the opposite direction to the upper piece portion 31, and its lateral width is set longer than the upper piece portion 31 and the hanging piece portion 32. Yes.
Therefore, when the upper piece portion 31 is aligned with the upper end of the side wall bar 2, the left and right ends of the lower piece portion 33 are arranged to overlap the bottom surfaces of the left and right side wall bars 2 (see FIG. 8).

Therefore, as shown in FIGS. 7 and 8, the connecting piece 3 is overlapped with no gap so that the lower piece 33 faces each other at the caster mounting portion, and the side wall bar 2 of the lower piece 33 is formed. A portion that overlaps the bottom surface is welded to form a caster fixing plate, and a portion that overlaps the bottom surface of the side wall bar 2 of the lower piece 33 is used alone as a reinforcing bar other than the caster mounting portion.
Therefore, the screw hole 5a provided in the upper piece portion 31 can be fixed by screwing or bolting in alignment with the screw hole (not shown) provided in the floor board 1A indicated by a one-dot chain line in the drawing.

The lower piece 33 used as the caster fixing plate is formed with one screw hole 6a or two screw holes 6a and 6b near the both ends.
That is, in the case of the caster fixing plate 30A for mounting the swivel caster 8, the mounting base plate 8A of the swivel caster 8 is screwed so as to straddle the pair of lower pieces 33, 33. Two screw holes 6a and 6b are formed on the left and right respectively according to the screw pitch of the mounting base plate 8A (see FIG. 7).
In the present embodiment, one screw hole 6a is provided near the side wall bar 2, and a long hole or a large-diameter hole 6b is formed at a position spaced toward the center so that the mounting position can be finely adjusted.

Further, in the case of the caster fixing plate 30B to which the fixed caster 9 is attached, the reinforcing beam portion 19 of the intermediate base plate constituting portion B can be fitted into the channel-shaped gap portion.
And since the fixed caster 9 is attached along the side wall bar 2, the auxiliary | assistant plate 10 which protrudes outside from the side wall bar 2 in the extension direction of the lower piece part 33 of the caster fixing plate 30B is welded to the side wall bar 2. .
The lower piece 33 has one screw hole 6a on the left and right, respectively, and the auxiliary plate 10 is matched to the screw pitch of the mounting base plate 9A of the fixed caster 9 with respect to the screw hole 6a. A screw hole 7a is formed.

  Accordingly, a pair of connection pieces 3 and 3 facing each other so as to be the caster fixing plates 30A and 30B are fixed to the front and rear sides and the center position of the side wall bar 2, respectively, and the single piece is provided between the caster fixing plates 30A and 30B. The connecting piece 3 is fixed to form a carriage frame 1 as shown in FIG.

  In the present embodiment, the screw hole 5a of the upper piece 31 shown by a double circle in FIG. 7 is aligned with the screw hole when the floor board is assembled, and the floor board 1A and the support frame 1 are fastened together. Be able to.

  That is, the pair of screw holes 5a formed in the upper piece portion 31 of the outer connection piece constituting the caster fixing plate 30A is the same as the base end screw hole 20 of the end base plate constituting portion A shown in FIG. They are aligned and can be tightened through bolts and screws.

  A pair of screw holes 5a formed in the upper piece portion 31 of the connection piece 3 interposed between the caster fixing plates 30A and 30B is a screw shown on the left side of FIG. The holes 21 and 24 and the screw holes 23 and 22 are aligned with each other, and the right side in the drawing is aligned with the screw holes 26 and 22 'and the screw holes 21' and 25 shown in FIG. It can be tightened through bolts and screws.

  In the above-described embodiment, the caster fixing plate including the pair of connection pieces 3 and 3 has three sets, and two single connection pieces 3 are provided. However, the number of the connection pieces 3 used alone is the number of floor plates. It can be appropriately increased or decreased according to the length.

  In this way, in the present invention, the bogie frame can be produced with a reduced number of parts by combining a plurality of connection pieces 3 and fixing between the side wall bars 2 and 2 of a predetermined length when the bogie frame 1 is produced. it can.

In the present invention, the shape of the connecting piece is not limited to the above-described embodiment, and the upper piece may be rectangular without being cut out between the protruding pieces.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

(A) is a top view which shows the edge part baseplate structure part and intermediate | middle baseplate structure part as a single-piece | unit, (b) is sectional drawing seen from the front. (A) is a top view of the floor board of the state which connected the edge part baseplate structure part and the intermediate | middle baseplate structure part, (b) is sectional drawing seen from the front. (A) is a top view which shows a pair of edge part baseplate structure part, (b) is sectional drawing seen from the front. (A) is a top view of the floor board of the state which connected the edge part baseplate structure part, (b) is sectional drawing seen from the front. It is a perspective view which shows the connection state of an upper stage convex part and a lower stage convex part. It is a perspective view in the case of attaching a connection piece between side wall bars. It is a top view of a bogie frame. It is a bottom view of a bogie frame. It is a side view of a bogie frame. It is a bottom view of the conventional cart frame. It is a perspective view which shows the conventional trolley | bogie.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bogie frame 2 Side wall bar 2A Shelf frame support pipe 4 Bumper 5a, 5b Screw hole 6a, 6a Screw hole 8 Swivel caster 9 Fixed caster 10 Auxiliary plate 31 Upper piece part 32 Hanging piece part 33 Lower piece part

Claims (1)

A pair of through-holes for shelf frame support on the left and right sides on one end side in the longitudinal direction of the floorboard, and one side from the center in the short direction on the other end side. A first connecting piece component having a first screw hole in the center as a convex part, and a second screw hole in the center as a horizontal lower convex part with the upper part in the thickness direction notched and the lower part left from the center in the left-right direction. An end base plate constituent part as a second connecting piece constituent part provided with,
One end side in the longitudinal direction of the floorboard is a third connecting piece component having a third screw hole in the center, with one from the center in the left-right direction as a lower convex part in the horizontal direction with the upper part in the thickness direction cut out and the lower part left. The other side from the center in the left-right direction is the fourth connecting piece constituting part having a fourth screw hole in the center as a laterally upper convex part with the lower part in the thickness direction cut out and the upper part left. Then, a fifth connecting piece constituent part provided with a fifth screw hole in the center as a laterally upward convex part leaving a lower step in the thickness direction on the side facing the third connecting constituent piece constituent part, Intermediate base plate configuration with a sixth connecting piece constituent portion provided with a sixth screw hole in the center as a laterally facing lower convex portion leaving the lower step in the upper side in the thickness direction on the side facing the fourth connecting constituent piece constituent portion And consists of
Rotate one of the two end base plate components 180 degrees to the left and right to hang each connecting piece component, and fasten it to assemble a short base plate, or the two end base plate configurations One or more intermediate base plate constituent parts are interposed between the parts, each connecting piece constituent part is hooked and screwed to assemble a base plate having a long length. .

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