JP2008265554A - Block for truck, and truck using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily obtain a truck with its bed plate in different sizes. <P>SOLUTION: Engagement projection parts 7 are provided on a front face wall part 5 and a right side face wall part 6, and engagement recessed parts 12 and slits 13 are provided on a rear face wall part 9 and a left side face wall part 11 in a block 101 for a truck is formed of resin. The engagement projection parts 7 and the engagement recessed parts 12 of the blocks 101 for the truck, with caster mounting parts 21 of block body parts 1 mounted with casters 14, are longitudinally/laterally connected via the slits 13 within the same flat surface to form the truck 201 having the bed plate 28 in a predetermined size. The truck 201 comprising the bed plate 28 in the optimal size for placed articles can be easily obtained by increasing or decreasing the number of connection of the blocks 101 for the truck. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a carriage block for forming a carriage base plate by directly connecting a plurality of them in the same plane, and a carriage formed by connecting them.

  In production sites such as factories, carts for transporting articles are used. Many patent applications have been filed for carts (see, for example, Patent Document 1). When carrying an article by a carriage, it is desirable to use a carriage having a base plate (a part where the article is installed) having a size suitable for the article. However, there are many articles with different sizes (bottom areas) that are transported on the production site. Moreover, the size of the conveyed article may change due to a change in production status. In order to cope with this, a plurality of carts having different base plate sizes must be prepared.

  In the case of a cart made of resin, a large mold is required to manufacture a cart having a base plate with a large installation area.

The carriage is used when carrying an article, and is stored in a predetermined storage place when the article does not need to be carried. Here, since the casters are attached to the bottom of the normal cart, if the carts are stacked in multiple stages, the wheels of the casters of the cart arranged on the upper stage slide due to vibration etc., and the upper carriage falls Will occur. In order to prevent this, when the cart is stood up (when the cart is in contact with the side surface of the cart), it is troublesome to remove the cart from the stowage location during use. In order to eliminate the above-described problems, for example, a technique disclosed in Patent Document 2 exists.
JP 2006-111221 A JP 2001-80520 A

  This invention makes it a subject to make it easy to obtain the trolley | bogie from which the magnitude | size of a baseplate differs in view of an above described malfunction.

Means for Solving the Problems and Effects of the Invention

The present invention for solving the above problems is as follows.
A carriage block for forming a carriage base plate by directly connecting a plurality of pieces in the same plane,
The side surface portion of the block main body portion is formed with a connection engaging portion for holding the connection with the block main body portion of another cart block by mutual engagement relation, and the bottom surface of the block main body portion. The part is formed with a caster mounting part for mounting the caster,
A base plate of the cart is formed in a predetermined size by connecting the block main body portions of the predetermined number of cart blocks to each other through the coupling engaging portion.

  Since the cart block according to the present invention is configured as described above, a predetermined number of cart blocks can be coupled via the coupling engaging portion. For this reason, when a trolley is formed by connecting a plurality of trolley blocks, the size of the base plate is set to an optimum size with respect to the size (installation area) of the article to be transported. be able to. And with this cart, articles can be transported in a stable state. In addition, since each cart block can be made small, even a cart having a large base plate can be easily manufactured.

  Specifically, the coupling engaging portion has an engaging protrusion formed on the side surface portion of the block main body portion of one bogie block, and the side surface portion of the block main body portion of the other bogie block. It is provided so that it may engage by engaging relatively with the formed engaging recessed part along a height direction.

  The engagement recess is formed in a non-penetrating state in the height direction with respect to the block main body, and is relatively fitted with the engagement protrusion from only one direction in the height direction. be able to.

  Since the engaging protrusion and the engaging recess of the connecting engaging portion are configured to be fitted from only one direction, it is difficult to release the connected state between the carriage blocks. For this reason, when an article is installed on a base plate of a carriage formed by connecting a plurality of carriage blocks, the connection state between the carriage blocks is hardly released.

  The upper surface of the block main body is formed with a caster receiving recess for receiving a caster attached to a caster mounting portion of another cart block when another cart block is stacked. .

  When another carriage is stacked on the carriage base plate formed by connecting a plurality of carriage blocks, the casters of the other carriages are accommodated in the caster accommodation recesses of the lower carriage. As a result, the wheels of the casters in the upper carriage are prevented from rolling, and the upper carriage is less likely to drop, and the height when stacked is reduced.

  The caster receiving recess is formed in a non-penetrating state in the block main body, and the caster mounting portion is provided on the lower surface of the bottom of the caster receiving recess.

  Since the caster mounting portion to which the caster is mounted is provided on the lower surface of the bottom portion of the caster receiving recess, the peripheral surface is arranged in the same vertical plane when the carts are stacked. Thereby, the installation area of the trolley | bogie in a piled-up state is only one when a plurality of trolleys are piled up, and space saving is achieved.

  The caster mounting portion is connected to a plurality of bogie blocks in a state in which the casters are mounted, and does not interfere with the casters mounted on the caster mounting portions of the adjacent bogie blocks when the casters turn in a horizontal plane. It is desirable to be provided at a position.

  Thereby, even if it connects the block for trolley | bogies, there is no possibility that adjacent casters will interfere, the freedom degree of the attachment location of a caster becomes high, and a caster can be attached at random.

  An anti-slip member is attached to the block main body.

  The non-slip member prevents the article installed on the base plate from slipping. For this reason, the possibility that the article slips and falls during transportation is reduced.

  A handle mounting hole for mounting a handle is provided in the block main body.

  Since the handle can be attached to a carriage formed by connecting a plurality of carriage blocks, the operation of the carriage becomes easy.

  A caster may be attached to the caster attachment portion of the block main body.

  A cart can be formed simply by connecting a cart block to which casters are attached.

  A cart can be formed by connecting a plurality of cart blocks.

  This invention captures the invention of the trolley block from the viewpoint of the trolley, and has the same effects as the trolley block.

  Examples of the present invention will be described. 1A is a perspective view from above of a block 101 according to an embodiment of the present invention, FIG. 1B is a perspective view from below, FIG. 2A is a plan view of the block 101, and FIG. 3 is a right side view, FIG. 3A is a front view of the block 101 with a part broken away, FIG. 3B is an enlarged view of a portion A of FIG.

  First, the cart block 101 (hereinafter simply referred to as “block”) will be described. The block 101 of this embodiment is manufactured by injection molding a resin material. As shown in FIGS. 1 to 4, the block main body 1 of the block 101 is formed in a rectangular frame shape, and its upper surface is closed by an upper plate 2. A large number of vertical rails 3 and horizontal rails 4 are attached to the inner surface of the block main body 1 in a lattice shape, and the rigidity of the block main body 1 is ensured. In the block main body 1, two engaging protrusions 7 project from two adjacent peripheral surface portions (the front wall portion 5 and the right side wall portion 5) at a predetermined interval. The shape of each engagement protrusion 7 is the same. The engagement protrusion 7 is substantially T-shaped in a plan view, and is attached to the front end surface of the gap forming ridge 8 protruding from the front wall 5 or the right side wall 6 of the block main body 1. The gap 5 is disposed away from the wall 5 or the right side wall 6 by the length e1 of the gap forming protrusion 8.

  On the back wall portion 9 and the left side wall portion 11 of the block main body portion 1, there are an engagement recess 12 and a slit 13 for fitting the gap forming protrusion 8 and the engagement protrusion 7 of another truck block 101. Is provided. The engagement recess 12 is provided in a shape corresponding to the engagement protrusion 7 (a cross-sectional shape substantially similar to the engagement protrusion 7), and the inner width of the slit 13 is a gap forming protrusion. It is a little wider than the width of 8. The engaging recess 12 and the slit 13 are in a non-penetrating state along the height direction from the lower surface of the back wall portion 9 and the left side wall portion 11 of the block main body portion 1 and with respect to the upper plate 2 of the block main body portion 1. (In other words, the upper surfaces of the engaging recess 12 and the slit 13 are closed by the upper plate 2 of the block main body 1).

  As shown in FIG. 5, the engaging protrusion 7 shifts the two blocks 101 and 102 in the height direction, and the right side wall 6 of one block 101 and the left side wall 11 of the other block 102. With the end surfaces of the two blocks 101 and 102 being vertically aligned, the blocks 101 and 102 are moved up and down relatively to be fitted into the engagement recess 12. At this time, the gap forming protrusion 8 is simultaneously fitted into the slit 13. Here, the length e1 of the gap forming ridge 8 of the block 101 and the thickness e2 of the left side wall 11 of the block 102 are set to dimensions that do not rattle when both the blocks 101 and 102 are fitted. ing. The same applies when the front wall 5 of one block 101 and the back wall 9 of the other block 102 are connected.

  As shown in FIGS. 1 to 4, the upper plate 2 of the block main body 1 is provided with a caster accommodating recess 16 for accommodating a wheel 15 of a caster 14 (described later) attached to another block 101. ing. In the case of the block 101 of the present embodiment, four caster receiving recesses 16 are provided in parallel on the upper plate 2 of the block main body 1. All of the four caster accommodating recesses 16 have the same shape. The caster accommodating recess 16 is substantially rectangular in plan view, and its bottom 16a is closed. On the inner wall surface of the caster receiving recess 16, wheels 15 (indicated by two-dot chain lines in FIGS. 2 and 3) of another caster 14 received in the caster receiving recess 16 are arranged in the left-right direction (longitudinal direction of the block 101). A restriction protrusion 17 for restricting rolling is formed, and a pair of restrictions for restricting the wheel 15 of the caster 14 from sliding in the front-rear direction (direction perpendicular to the longitudinal direction of the block 101). Projections 18 are formed to face each other. In addition, a through hole 19 is provided in the bottom portion 16 a of the caster accommodating recess 16. Garbage, sand, etc. dropped from the wheel 15 of the caster 14 accommodated in the caster accommodating recess 16 are discharged to the outside through the through hole 19.

  A caster mounting portion 21 is provided on the lower surface of the bottom portion 16 a of the caster housing recess 16. That is, four bolt holes 22 are provided at a predetermined interval in the bottom portion 16 a of the caster accommodating recess 16, and a hexagon nut 23 is embedded concentrically with each bolt hole 22. In the case of the block 101 of the present embodiment, four caster mounting portions 21 are provided on the bottom surface portion of the block main body portion 1.

  The caster 14 includes a caster support plate 24 and wheels 15 attached to the caster support plate 24 so as to be rotatable in a horizontal plane. In the caster 14, the wheel support plate 24 is addressed from below the block 101 to the caster mounting portion 21 of the block main body 1, and each hexagon bolt 25 screwed into the hexagon nut 23 through the bolt hole 22 is tightened. As a result, the block 101 is fixed. Note that, in the block 101, the caster attachment portion 21 is configured such that when the blocks 101 are connected to each other, the caster 14 attached to the caster attachment portion 21 is attached to the caster attachment portion 21 of another block 101. It is provided at a position where it does not interfere with. In the present embodiment, the casters 14 are attached by closing the hexagon bolts 25 from below the block 101. However, the hexagon bolts 25 may be closed from above the block 101. .

  When the two blocks 101 and 102 are stacked, the wheel 15 of the caster 14 attached to the upper block 102 is received in the caster receiving recess 16 of the block 101 immediately below. Then, the rolling and slipping of the wheel 15 of the caster 14 are restricted by the restricting protrusions 17 and 18 provided on the inner wall surface of the caster accommodating recess 16. This prevents the upper block 102 from falling.

  The upper plate 2 of the block main body 1 is provided with a large number of through holes 26 (a total of 20 in this embodiment) at a predetermined interval. These through holes 26 are provided for the purpose of reducing the projected area of the upper plate 2 and reducing the weight of the block 101. Moreover, the recessed part 30 is formed in the predetermined position (in this example, two places) in the upper board 2 of the block main-body part 1, and it is made from rubber material in the through-hole 30a provided in the bottom face part. A clip 27 is attached in a state in which a part (upper end portion) of the clip 27 protrudes from the upper plate 2 of the block main body 1. Thereby, it is prevented that the article | item installed in the baseplate 28 (refer FIG. 6) of the trolley | bogie 201 formed by connecting the some block 101 slips. Moreover, the through-hole 26 existing in the vicinity of the left side wall portion 11 of the block main body 1 is a handle attachment hole 31 through which the support rod 29a of the handle 29 (see FIG. 6) is inserted.

  As shown in FIGS. 6 and 7, a plurality of blocks 101 are connected in a state where the casters 14 are attached to the caster attaching portions 21 of the block main body portion 1 to form a carriage 201. The operation at that time will be described in the case where the four blocks 101 to 104 are connected to the front, rear, left and right to form the carriage 201. A predetermined number of casters 14 are attached in advance to predetermined caster mounting portions 21 in the respective blocks 101 to 104. That is, two casters 14 are attached to the blocks 101 and 103, and one caster 14 is attached to the blocks 102 and 104. As shown in FIG. 5, the block 102 disposed above the block 101 is moved up and down relatively to form a gap with the two engaging protrusions 7 provided on the right side wall 6 of the block 101. The protrusions 8 are fitted into the corresponding two engaging recesses 12 and the slits 13 provided on the left side wall portion 11 of the block 102. In a state where the engaging protrusion 7 is fitted in the engaging recess 12, the two blocks 101 are arranged in the same plane.

  Since the upper surface of the engaging recess 12 of the block 102 and the upper surface of the slit 13 are closed by the upper plate 2 of the block main body 1, the upper end surface 7 a of the engaging protrusion 7 of the block 101 and the engaging recess 12 of the block 102 are In the state where the ceiling surface 12a is in close proximity, the blocks 101 and 102 are prevented from going up and down further. And it is desirable that the caster 14 is attached to the caster attachment part 21 of the right side wall part 6 in the block (in this case, the block 101) which is initially arranged on the lower side of the blocks 101 and 102. As a result, even when an article is placed on the base plate 28 of the carriage 201 and a load is applied to the blocks 101 and 102 along the height direction, the block 101 is supported by the casters 14. It is prevented that the connecting portion of the sunk. Further, the block 102 is prevented from sinking because the ceiling surface 12 a of the engagement recess 12 abuts on the upper end surface 7 a of the engagement protrusion 7 of the block 101 and is supported by the block 101 and its casters 14. The As a result, the two connected blocks 101 and 102 are arranged in a stable state.

  Subsequently, an engagement protrusion 7 (not shown in FIGS. 6 and 7) provided on the front wall 5 of the block 101 and an engagement recess 12 (also the same) provided on the back wall 9 of the block 103 are the same. The block 101 and the block 103 are connected to each other. Similarly, the block 104 is connected to the block 102 and the block 103. Thereby, the carriage 201 is formed. Then, if necessary, the support rod 29a of the handle 29 is inserted into the handle attachment holes 31 of the blocks 101 and 103, and the handle 29 is attached. In addition, although what was mentioned above is an effect | action at the time of connecting the blocks 101-104 to which the caster 14 was previously attached, and forming the trolley | bogie 201, the blocks 101-104 in the state where the caster 14 is not attached are connected. Then, the base plate 28 of the carriage 201 may be formed, and then the caster 14 may be attached.

  The operation of the carriage 201 formed by connecting the blocks 101 of this embodiment will be described. Since the carriage 201 is formed by connecting a plurality of blocks 101, it is possible to form the base plate 28 having an optimum size corresponding to the size of the article to be transported. As a result, the article can be installed on the base plate 28 in an optimal state, and the article can be transported in a stable state. Further, in each block 101 in the connected state, the caster 14 is attached to the caster attaching part 21 in the vicinity of the side where the engaging protrusion 7 is provided, so that the block 101 can be adjusted according to the weight of the article installed on the base plate 28. It is avoided that the connecting portions sink and the base plate 28 becomes concave. In addition, since the connected blocks 101 are released by simply moving the adjacent blocks 101 up and down relatively, the size of the base plate 28 can be reduced or the blocks 101 can be separated. Is also easy.

  Articles are placed on the base plate 28 of the carriage 201. Since the clip 27 attached to the through hole 26 at a predetermined position is attached to the base plate 28 in a state where the upper ends of the clips 27 are protruded, the installed article is difficult to slip.

  Then, as shown in FIG. 8, when the carriage 201 is not used, another carriage 201 'can be stacked. At this time, the caster 14 of the upper carriage 201 ′ is accommodated in the caster accommodating recess 16 of the lower carriage 201. For this reason, the height of the cart 201 in a stacked state can be reduced. In addition, since the wheels 15 of the casters 14 disposed in the caster accommodating recesses 16 are restricted from rolling or sliding by the restricting projections 17 and 18, there is no possibility that the upper carriage 201 ′ will fall. . Here, in each of the blocks 101 to 104, the caster mounting portion 21 is provided on the lower surface of the bottom portion 16 a of the caster accommodating recess 16. For this reason, when the caster 14 of the upper carriage 201 ′ is accommodated in the caster accommodating recess 16 of the lower carriage 201, the peripheral surfaces of the upper and lower carriages 201, 201 ′ (the front wall portion 5, the right side wall portion 6, the rear wall). The part 9 and the left side wall part 11) are arranged in the same vertical plane. This means that the peripheral surfaces of the stacked carriages 201 and 201 'are arranged in an aligned state. As a result, in the storage space for one truck 201, another truck 201 'can be stacked and stored, and the storage space can be saved. Since the caster mounting portion 21 is provided on the lower surface of the bottom portion 16 a of the caster receiving recess 16, the caster 14 is mounted on any caster mounting portion 21 of the base plate 28 as long as the base plate 28 has the same size. Even if it is, the caster 14 can be accommodated in the caster accommodating recess 16.

  Also, the two carriages 201 and 201 'can be turned over and stacked. In this case, it is possible to prevent not only the upper carriage 201 'but also the lower carriage 201 from moving, which is suitable for transportation by truck, for example. Furthermore, as shown in FIG. 9, two carts 201 and 201 'can be stored upright. Even in this case, since the wheels 15 of the casters 14 are accommodated in the corresponding caster accommodating recesses 16, the width of the storage space may be small.

  If necessary, the handle 29 can be attached by inserting the support rod 29a of the handle 29 into the handle attachment hole 31 of the blocks 101, 103.

  In this specification, the cart 201 formed by connecting the four blocks 101 to 104 has been described. However, the cart 201 formed is not limited to the case where the number of the blocks 101 is four. For example, as shown in FIG. 10A, a carriage 201 ′ formed by connecting two blocks 101, or six blocks 101 as shown in FIG. It may be a cart 203 formed in a connected manner.

  As described above, the carts 201 to 203 of the present invention are formed to have the base plate 28 of a predetermined size by connecting the plurality of cart blocks 101 to which the casters 14 are attached. For this reason, the size of the base plate 28 can be increased or decreased by adjusting the number of the truck blocks 101 to be connected. In addition, since the carriage block 101 is small, a molding die and an injection molding machine can be small even when the resin material is manufactured by injection molding.

(A) is a perspective view from the upper part of the block 101 of the Example of this invention, (b) is a perspective view from the bottom similarly. (A) is a top view of the block 101, (b) is a right view similarly. (A) is the front view of the block 101 which fractured | ruptured one part, (b) is an enlarged view of the A section of (a). 2 is a bottom view of the block 101. FIG. It is action explanatory drawing of the state which connects the blocks 101 and 102. FIG. It is a perspective view of the trolley | bogie 201 formed by connecting four blocks 101-104. FIG. 3 is a perspective view from below of a carriage 201. (A) is a perspective view of a state in which two carriages 201, 201 'are stacked, and (b) is a front view of (a). It is a front view of the state which stood and stored two carts 201 and 201 '. (A) is a perspective view of the carriage 202, (b) is a perspective view of the carriage 203. FIG.

Explanation of symbols

101-104: Bogie block 201-203: Bogie
1: Block body
2: Upper plate (upper surface of block main body)
5: Front wall (side surface)
6: Right side wall (side)
7: Engaging protrusion (coupling engaging portion)
9: Back wall (side)
11: Left side wall (side)
12: Engaging recess (coupling engaging part)
14: Casters
16: Caster receiving recess
21: Caster mounting part
27: Clip (slip prevention member)
28: Base plate
29: Handle

Claims (10)

A carriage block for forming a carriage base plate by directly connecting a plurality of pieces in the same plane,
The side surface portion of the block main body portion is formed with a connection engaging portion for holding the connection with the block main body portion of another cart block by mutual engagement relation, and the bottom surface of the block main body portion. The part is formed with a caster mounting part for mounting the caster,
A bogie block characterized in that a bogie base plate is formed with a predetermined size by connecting block main body portions of a predetermined number of bogie blocks to each other via the coupling engaging portion. .   The coupling engaging portion is an engagement protrusion formed on the side surface of the block main body of one truck block, and the engagement protrusion formed on the side surface of the block main body of the other truck block. The trolley block according to claim 1, wherein the trolley block is provided so as to be engaged with the recess by being relatively fitted along the height direction.   The engaging recess is formed in a non-penetrating state in the height direction with respect to the block main body, and is relatively fitted with the engaging protrusion from only one direction in the height direction. The cart block according to claim 2, wherein   The upper surface of the block main body is formed with a caster receiving recess for receiving a caster attached to a caster mounting portion of another cart block when another cart block is stacked. The trolley block according to any one of claims 1 to 3, wherein the trolley block is provided.   The cart according to claim 4, wherein the caster receiving recess is formed in a non-penetrating state in the block main body, and the caster mounting portion is provided on a lower surface of the bottom of the caster receiving recess. For block.   The caster mounting portion is connected to a plurality of bogie blocks in a state in which the casters are mounted, and does not interfere with the casters mounted on the caster mounting portions of the adjacent bogie blocks when the casters turn in a horizontal plane. The carriage block according to any one of claims 1 to 5, wherein the carriage block is provided at a position.   The cart block according to any one of claims 1 to 6, wherein an anti-slip member is attached to the block main body portion.   The block for a truck according to any one of claims 1 to 7, wherein a handle attachment hole for attaching a handle is provided in the block main body.   The cart block according to any one of claims 1 to 8, wherein a caster is attached to a caster attachment portion of the block main body portion.   A carriage, comprising a plurality of carriage blocks according to claim 9 connected to each other.

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