JP2009061947A - Carrier body, carrier, and carrier connecting body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier body, a carrier, and a carrier equipped with a carrier connecting body arbitrarily attached/detached with a handle, etc., superior in shock resistance, cushioning property, strength, and design property, with an article loaded thereon hardly damaged or slipped. <P>SOLUTION: The carrier body 2 comprises a carrier body base 21, a plurality of long plate-like ribs 22 formed on a rear surface of the carrier body base 21, and reinforcement parts 23 composed of long tubular bodies provided along the ribs 22 or embedded in the ribs 22. The carrier 1 comprises the carrier body 2 and casters 3 provided at a lower part of the carrier body 2. As a carrier accessory 5 can be inserted into an opening end part 231 of the reinforcement part 23 and fixed thereto, the carrier accessory 5 can be fixed more firmly than in case of being fixed to the carrier body base 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a trolley body and a trolley having a flat loading surface, and a trolley linking body. More specifically, it is possible to detach the handle etc. arbitrarily, and it consists of an elastic body using a vulcanized rubber body which is a waste rubber crushed material obtained by crushing waste tires, etc., and has impact resistance, cushioning properties, and The present invention relates to a carriage main body that is excellent in strength and is less likely to be damaged and slippery, a carriage in which wheels are attached to the carriage main body, and a truck coupling body.

  Conventional trolleys are provided with wheels on a plate-like trolley body made of metal, resin, etc., and the trolley body is provided with an uneven surface and an elastic body so that the load is less likely to slide off the trolley body (for example, Patent Documents). 1, see Patent Document 2). There is also known a cart that processes waste plastic and uses it for the cart body (see, for example, Patent Document 3). Further, there is also known a cart that can be used in a state in which a plurality of carts are connected by providing concavity and convexity for fitting and coupling on the peripheral side of the cart body (see, for example, Patent Document 4).

JP 2001-138923 A (see FIG. 1) JP 2003-327125 A (see FIG. 12) JP 2005-47323 A JP 7-257384 A

  However, in the case where a handle used as a handle for transportation or the like is provided on a conventional cart, it is necessary to provide a handle on the loading surface of the cart, which limits the use of the loading surface. For example, the cart of Patent Document 1 has a handle provided at an end portion on one side of the loading surface, and the available loading surface is reduced. Moreover, the cart of Patent Document 2 includes a hole for inserting a frame that can be used as a handle at each corner of the loading surface. However, when the frame is inserted, it is difficult to load a load larger than the frame beyond the loading surface.

Moreover, the cart provided with the concavity and convexity for fitting connection as exemplified in Patent Document 4 can transport a load that cannot be accommodated by one cart by connecting a plurality of carts. However, there is a problem that when the carriage is bent, the fitting is released, and each carriage travels in different directions and cannot be transported.
Furthermore, since the material of the conventional bogie body is made of metal, resin, etc., it is not elastic.
If it is not elastic, there is a problem that the load is slippery or weak against impact and inferior in cushioning. On the other hand, a material having high elasticity needs to have high strength because it easily deforms when the weight of the load is large.

  The present invention has been made in view of the above circumstances, and a vulcanized rubber body, which can be arbitrarily detached from a handle and is a crushed waste rubber obtained by crushing a waste tire or the like, is used. It should be solved to provide a carriage body made of an elastic body, excellent in impact resistance, cushioning, and strength, the load is not easily damaged and slippery, a carriage with wheels attached to the carriage body, and a carriage connection body. Let it be an issue.

The present invention is as follows.
1. A main body base of the carriage, a plurality of long plate-like ribs formed on at least one of the vertical direction, the horizontal direction, and the oblique direction on the back surface of the main body base of the carriage, and provided on or in the rib A reinforcing part comprising a long tubular body to be embedded, wherein the reinforcing part has at least one opening end exposed, and the insertion of the cart accessory having a rod-like insertion part at the opening end Bogie body characterized in that the part can be inserted.
2. The reinforcing portion is sandwiched between the carriage main body base and the clamping member, and the rib adjacent to the reinforcing portion is expanded by the clamping member to press the reinforcing portion. The cart body described.
3. The reinforcing part includes a fixing hole that is fitted to a fixing protrusion and / or a fixing screw hole formed on a peripheral surface of the insertion part. Or 2. The cart body described.
4). One side surface of the cart main body base and the other side surface to be paired include a first fitting portion and a second fitting portion that are fitted in the vertical direction. The trolley | bogie main body of any one of thru | or 3.
5). The cart main body base is composed of a polymer matrix and a vulcanized rubber body dispersed in the polymer matrix. The trolley | bogie main body of any one of thru | or 4.
6). The base body of the carriage is obtained by adding the vulcanized rubber body and the polymer matrix material to a mixing apparatus equipped with stirring blades and stirring, and then pressure-molding the vulcanized rubber body and the polymer binder. The above 5. The bogie body described in 1.
7). The anti-skid plate further provided in the recessed part formed in the surface of the said base | substrate main body, The said anti-slip plate is a polymer which joins this particle | grain or chip-shaped vulcanized rubber body, and this vulcanized rubber body And 5. a binder. Or 6. The bogie body described in 1.
8). 6. The surface of the anti-slip plate has a surface roughness greater than that of the base body of the carriage. The bogie body described in 1.
9. The vulcanized rubber body is made of waste rubber. The trolley | bogie main body of any one of thru | or 8.
10. The vulcanized rubber body is a powder piece. The trolley | bogie main body of any one of thru | or 9.
11. Above 1. A cart comprising: the cart main body according to any one of 1 to 10; and a caster provided at a lower portion of the cart main body.
12 The reinforcing portion is sandwiched between the cart body and the casters. The listed trolley.
13. The above-mentioned carriage accessory further comprising the carriage accessory, wherein the carriage accessory is a handle comprising a handle body and a rod-like insertion portion connected to the handle body and having one end side inserted and fixed to the opening end portion. . Or 12. The listed trolley.
14 Above 11. A plurality of carriages and a carriage accessory according to any one of claims 13 to 13, wherein the carriage accessory includes a connecting member main body, one end of which is inserted and fixed to the opening end of each carriage, and the other end connected to the connecting member main body. And a plurality of insertion portions.

According to the bogie main body and the bogie of the present invention, as illustrated in FIGS. 7, 8, 11, and 12 to 14, insertion of the handle 5 and the connecting members 6, 7a, 7b, 8a, 8b, and 8c that are bogie accessories Since the parts 52, 62, 63, 72 to 77 can be inserted into and fixed to the opening end 231 of the reinforcing part 23, the trolley accessory can be fixed more firmly than the case where it is fixed to the trolley main body base 21. Can do. Moreover, since both are being fixed by the friction between the reinforcement part 23 and the insertion part 52 grade | etc., Attachment / detachment is easy. Further, when the carriage is moved using the cart accessory, the insertion portion 52 and the like are pressed against the inner wall surface of the reinforcing portion 23 due to the vertical force applied to the cart accessory, so that it can easily fall off. Absent.
In addition, since various types of cart accessories such as the handle 5 and the connecting member 6 can be provided on one cart body and the cart, they can be transported by the same cart even for different uses.
Further, as illustrated in FIGS. 2 and 1, the bogie main body and the bogie can be used without providing the bogie accessory, and therefore the application is not limited by the bogie accessory.
Moreover, since the cart main body base 21 is reinforced by the reinforcing portion 23, it is possible to load a load that cannot be supported by the cart main body base 21 alone. In particular, even if the bogie main body base 21 is softer than the material used in the conventional bogie main body base, it is possible to load a load having an equivalent weight or more.

When the reinforcing part is pressed by the ribs that are spread by the clamping member, the reinforcing part is not easily dropped off, and the strength can be maintained.
As illustrated in FIG. 4, when the reinforcing portion 23 is provided with the fixing hole 233, as illustrated in FIG. 8, the fixing protrusion 521 provided in the insertion portion 52 of the carriage accessory is fitted and fixed, or fixed screwing is performed. Since the hole and the fixing hole can be screwed together, the hole and the fixing hole can be fixed more firmly than when both are fixed by friction between the reinforcing portion 23 and the insertion portion 52.
When the first fitting portion and the second fitting portion are provided, the plurality of carriage main bodies and the carriage can be easily connected and reinforced by fitting the first fitting portion and the second fitting portion. Since the base body base portion is not easily bent by the portion 23, the fitting of the first fitting portion and the second fitting portion is not easily released.

When the carriage main body base is composed of a polymer matrix and a vulcanized rubber body dispersed in the polymer matrix, the impact resistance and cushioning properties are excellent. In addition, the load is not easily damaged and slippery. Therefore, when compared with a conventional cart made of plastic (hereinafter referred to as “conventional product”), for example, when a cart loaded with a load is pushed through a stepped road surface, Even if the load falls from the carriage main body due to the impact, according to the carriage of the present invention, the impact is absorbed and the load is difficult to fall. In addition, when passing over asphalt with an uneven surface, in the case of the conventional product, vibration is always transmitted to the hand, whereas according to the carriage of the present invention, the carriage body base absorbs vibration, There is a feature that vibration is not easily transmitted to the hand holding the handle of the carriage. In particular, it is difficult to generate noise due to vibration, and can be quietly transported as compared to conventional plastic and metal carts. Furthermore, since appropriate strength is maintained by the reinforcing portion, the weight of the load is not affected by the material of the base of the carriage main body.
In addition, when the main body of the carriage is obtained by pressure molding after stirring the vulcanized rubber body and the polymer matrix material, the temperature of the vulcanized rubber body and the polymer binder as raw materials is uniformly raised. It is possible to suppress decomposition of the raw material accompanying heating. For this reason, the cart body base can be made uniform in quality and can be prevented from becoming partially fragile.
Moreover, when the recessed part is formed in the surface of a trolley | bogie main body and the anti-slip | skid board engaged with this recessed part is engage | inserted, the effect of the outstanding anti-slipping can be exhibited.
Furthermore, when the surface of the anti-slip plate is rougher than the surface of the carriage main body, a further excellent anti-slip effect is exhibited.
Further, when the vulcanized rubber body to be used is waste rubber, the waste rubber can be reused as a cart, so that the final disposal amount of the waste rubber is reduced and suitable for environmental protection.
Furthermore, when the vulcanized rubber body is a powder piece, more types of rubber materials can be used, and therefore, the final disposal amount is reduced, which is suitable for environmental protection. In addition, since a rough surface having elasticity is generated by the waste rubber crushed material on which the surface of the carriage body protrudes finely, it is particularly effective as an anti-slip material for the load.
When the reinforcing portion is sandwiched between the cart main body and the caster, the reinforcing portion can also be fixed by the process of fixing the caster, and the cart main body and the cart can be manufactured without increasing new processes.

  In this trolley coupling body, each trolley is connected via a linking member main body connected to the reinforcing part, so various connecting means are selected according to the application compared to the case where the conventional trolley main body base is directly connected can do.

Hereinafter, the cart body, the cart, and the cart assembly of the present invention will be described in detail with reference to FIGS.
As illustrated in FIG. 1, the bogie 1 includes a bogie main body 2 and a caster 3 provided at a lower portion of the bogie main body 2. Further, as illustrated in FIG. 2, the cart body 2 is provided along the rib body 22, a plurality of long plate-like ribs 22 formed on the back surface of the cart body base 21, or ribs. And a reinforcing portion 23 made of a long tubular body embedded in the body 22.

The “trolley main body base 21” is a plate-like portion on which the cart luggage is loaded. Further, the base body base includes a polymer matrix and a vulcanized rubber body dispersed in the polymer matrix, but is not limited thereto, such as resin, carbon black, metal, etc. contained in waste rubber May be included.
Further, the carriage main body base 21 is usually flat and uses the surface as a loading surface. Moreover, the rib 22 formed in the back surface can be formed in at least one of a vertical direction, a horizontal direction, and a diagonal direction, and the number in particular does not ask | require.
Further, the side surface of the carriage main body base 21 may be formed with an opening 24 that opens so that at least one opening end 231 of the reinforcing portion 23 is exposed. The position of the opening 24 may be any position where the rod-shaped body can reach the opening end 231 through the opening 24 and can be inserted and fixed in the reinforcing part 23. Usually, the axial extension of the reinforcing part 23 is performed. Provided on top. Further, it is more preferable that the plurality of openings 24 are arranged so as to be line-symmetric with respect to the horizontal direction with respect to one side surface. This is because when force is applied to the carriage via the rod-like bodies inserted into the openings 24, the force is easily applied evenly without being biased.

Moreover, the cart main body base portion 21 can include first fitting portions 251 and 252 and second fitting portions 261 and 262 that are vertically fitted to the pair of side surfaces. For example, when the cart body base 21 has a substantially rectangular shape, the first fitting portion 251 and the second fitting portion 261 may be provided on the short side to be paired, or the first fitting on the long side to be paired. The joining portion 252 and the second fitting portion 262 may be provided, or the first fitting portions 251 and 252 and the second fitting portions 261 and 262 may be provided on the short side and the long side.
Moreover, the 1st fitting parts 251 and 252 and the 2nd fitting parts 261 and 262 should just be provided with the convex part and the recessed part so that it can fit in an up-down direction, and the shape in particular is not ask | required.
The carriage main body base 21 can have a configuration other than the rib 22, the reinforcing portion 23, the opening 24, the first fitting portions 251, 252, and the second fitting portions 261, 262. Holes, hooks for stringing, and the like can be provided.

The above-mentioned “polymer matrix” that can be used for the base of the trolley body fixes the position of the vulcanized rubber body by joining the vulcanized rubber bodies and / or filling the gaps, and maintains the shape of the base of the trolley body. Is for. Arbitrary polymers, such as a polymer binder and an adhesive agent, can be used for the polymer matrix, and the polymer matrix is preferable.
The “polymer binder” is used as the polymer matrix by filling a gap between the vulcanized rubber bodies, and can be appropriately selected according to the vulcanized rubber body. Examples thereof include olefin polymers, vinyl aromatic compound polymers, aromatic polycarbonates, acrylic polymers, aromatic polyesters, and polyamides.

Examples of the polymer binder include polyethylene resins such as very low density polyethylene (VLDPE), linear low density polyethylene (LLDPE), low density polyethylene (LDPE), medium density polyethylene (MDPE), and high density polyethylene (HDPE), and random Polypropylene resin (PP), polybutadiene (PBD), poly 1-butene (PB), polymethylpentene (PMP), general polystyrene (GPPS), high impact polystyrene (HIPS), isotactic, etc. Tick polystyrene (iPS), syndiotactic polystyrene (sPS), poly α-methylstyrene (PαMS), ethylene-propylene copolymer (EPM), propylene / 1-butene copolymer (PBM), ethylene / 1-butene Mutual weight Examples thereof include a polymer (EBM), an ethylene-octene copolymer (EOM), an ethylene / propylene / 1-butene copolymer (EPBM), and an ethylene-propylene-diene copolymer (EPDM).
Also, polyvinyl acetate (PVAc), nylon 4,6 (PA46), nylon 6 (PA6), nylon 6,6 (PA66), nylon 6,10 (PA610), nylon 6,12 (PA612), nylon 12 ( PA12), reinforced polyamide, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyester resins such as polylactone, and polycarbonate (PC) such as poly-2,2-bis (hydroxyphenyl) propane carbonate.
Furthermore, acrylic polymers such as polymethyl methacrylate (PMMA), polyethyl methacrylate (PEMA), methacryl-styrene copolymer (MS Resin), polyacetal (POM), ABS resin, AES resin, ASA resin, diallyl Phthalate resin (DAP), EVA resin, EEA resin, phenol resin (PF), polyvinyl alcohol (PVA), ethylene vinyl alcohol copolymer (EVOH), polyarylate (PAR), norbornene resin, poly (2,6-dimethyl) -1,4-phenylene ether), poly (2-methyl-6-ethyl-1,4-phenylene ether), poly (2-methyl-6-phenyl-1,4-phenylene ether), poly (2,6 -Polyphenylene ethers such as dichloro-1,4-phenylene ether) (PPE), modified polyphenylene ether (modified PPE), polyethylene oxide, polyphenylene sulfide (PPS), polysulfone (PSU), thermoplastic polyester elastomer, thermoplastic polyurethane elastomer, thermoplastic polyamide elastomer, α, β-unsaturated nitrile-acrylic Examples include acid ester-unsaturated diene copolymer rubber, urethane rubber, butadiene rubber, chloroprene rubber, ethylene-propylene rubber, nitrile rubber, butyl rubber, and styrene / butadiene rubber.
In addition, the polymer binder can be used in combination of two or more kinds, and examples thereof include a combination of hard PP and soft butadiene rubber.

The “vulcanized rubber body” may have any shape such as a chip shape, a slender bar shape, a hijiki shape having branches, and a powder shape. Further, as the material of the vulcanized rubber body, any rubber exemplified by natural rubber, isoprene rubber, butadiene rubber, chloroprene rubber, ethylene-propylene rubber, nitrile rubber, butyl rubber, styrene-butadiene rubber and the like, and a composite thereof are used. be able to. In addition, waste rubber such as waste tires, rubber packing used for window frames, doors, and the like, and scraps generated during the manufacture of rubber products can also be used. This waste rubber may contain impurities other than vulcanized rubber.
Further, the type of waste tire to be used is not particularly limited. For example, a tire for a passenger car (PC tire), a small truck tire (LT tire), a truck / bus tire (TB tire), and a motorcycle tire (MC tire). At least one kind can be used. Moreover, tires for wheels such as casters for carts and end materials at the time of manufacturing the wheels can be used. Among these, the waste rubber obtained from the tread portion of the truck / bus tire (TB tire) contains no or few wires and fibers, so that there are no or few holes formed through these, A vulcanized rubber body excellent in aesthetics can be obtained.
The above “powder pieces” refers to crushed pieces, cut pieces, pulverized pieces, punched plates and the like. The shape may be any shape such as a chip shape, a long and narrow bar shape, an elbow shape with branches, and a powder shape. Moreover, it may be arranged in a predetermined shape, or may not be arranged like a crushed material obtained by crushing, for example. Although the magnitude | size of such a vulcanized rubber body can be selected arbitrarily, for example, the maximum width is preferably 0.5 mm to 10 mm (particularly preferably 1 mm to 5 mm). Further, the vulcanized rubber body may have a uniform size or a non-uniform size. This is because a vulcanized rubber body having such a width is easy to manufacture and protrudes greatly when molded into a cart body and does not easily fall off.
Furthermore, when the size of the waste rubber to be used is larger than the maximum width, it can be reduced to the maximum width or less by any means such as crushing, cutting and punching.

  The vulcanized rubber body may be a colored colored rubber chip. The raw material of the colored rubber chip includes at least a rubber chip, a polyurethane resin, and a colorant that are the same material as the vulcanized rubber body.

  The “polyurethane resin” is a one-component, moisture-curable polyurethane resin used as a binder for adhering a colorant to a rubber chip. Moreover, the curing time of the polyurethane resin can be arbitrarily selected. Furthermore, you may add arbitrary additives for characteristic adjustment, such as hardening time. The polyurethane resin is usually added in an amount of 1 to 20 parts by weight (preferably 1 to 15 parts by weight, more preferably 1 to 10 parts by weight) with respect to 100 parts by weight of the rubber chip. By using such an amount, the rubber chip can be sufficiently colored. Examples of the additive include a curing accelerating catalyst. Examples of the “curing acceleration catalyst” include amine salt catalysts. Examples of the amine salt catalyst include triethylenediamine, tetramethylguanidine, N, N, N′N′-tetramethylhexane-1,6diamine, and the like. In addition, it is preferable not to contain a hardening acceleration catalyst. This is because characteristics may be affected on the polyurethane resin film.

The “colorant” can be arbitrarily selected according to the use of the colored rubber chip, and usually a pigment is used. The pigment may be either an inorganic pigment or an organic pigment, but usually an inorganic pigment is used. Further, a plurality of colorants may be mixed. Further, the color of the colorant is not particularly limited, and examples thereof include white, red, brown, yellow, green, blue, purple, and gray. Among these, a light color or white color having an L * axis (lightness) in the L * a * b * color system of 60 or more (preferably 65 or more, particularly preferably 70 or more) is preferable.
Examples of the light color or white color include pink, beige, light green, light blue, light purple, and light gray. Further, each color is not limited to these colors, and may be a color having a brightness of 60 or more obtained by mixing arbitrary colors.
The colorant is usually added in an amount of 0.3 to 8 parts by weight (preferably 0.5 to 6 parts by weight, more preferably 0.7 to 4 parts by weight) with respect to 100 parts by weight of the rubber chip. By using such an amount, the rubber chip can be sufficiently colored.

The colored rubber chip raw material may contain, for example, a diluent and an anti-aging agent that improves weather resistance.
The diluent is used to adjust the viscosity and the like of the colored rubber chip raw material and improve the coloration of the rubber chip. The diluent is preferably any one that can dilute the binder, and urethane thinner can be usually used.
Furthermore, the inorganic powder for preventing the produced colored rubber chips from agglomerating may be contained in the colored rubber chip raw material, but it is desirable not to contain it. This is because aggregation can be sufficiently prevented without adding inorganic powder. Further, there is no change in the film properties of the colored rubber chip due to the addition of the inorganic powder, and the inorganic powder does not remain during incineration. Examples of such inorganic powders include calcium carbonate, talc, silica, clay and kaolin.
The method for producing the colored rubber chip is not particularly limited. As an example of this production method, a polyurethane resin as a binder is started to be cured and gelled, and a stirring and mixing step of coating a polyurethane resin gel-like film containing a colorant on the surface of a rubber chip, and a polyurethane resin as a binder It is mentioned that a watering step for promoting the reaction with water added by watering the uncured content and a curing step for completing the curing with water added by watering the uncured content of the polyurethane resin as a binder are repeated in this order. be able to.
In addition, the stirring and mixing step, the watering step, and the curing step can be repeated one or more times in this order. For example, shades (for example, red, brown, ocher, green, blue, purple, gray, and black with an L * axis in the L * a * b * color system of less than 60 (preferably less than 55, particularly preferably less than 50) Can be obtained by repeating each process once or twice, and the L * axis is 60 or more (preferably 65 or more, particularly preferably 70 or more). In the case of light shades (for example, pink, beige, light green, light blue, light purple, and light gray can be obtained), it is possible to obtain a good colored rubber chip in which the ground color is not visible by repeating each step three times or more. it can.

The ratio of the vulcanized rubber body and the polymer binder can be arbitrarily selected. For example, the weight ratio is 95: 5 to 50:50 (particularly preferably 80:20 to 50:50, more preferably 70:30 to 50:50).
There is no particular limitation on the method in which the vulcanized rubber body is bonded by the polymer binder and molded into the cart body. An example of this molding method is a method of molding a gel-like material in which a molten polymer binder is interposed between vulcanized rubber bodies with a pressure molding machine. Further, as a method for producing this gel-like material, a method in which a vulcanized rubber body and a polymer binder are stirred by rotating a stirring blade and heated by heat generated therewith, and a vulcanized rubber body and a polymer binder are prepared. It is possible to exemplify heating in contact with a heat source. Among these, the method by stirring is preferable. This is because heating by stirring can raise the temperature of the vulcanized rubber body and the like, and can prevent decomposition or the like due to partial overheating due to uneven temperature rise.

The “reinforcing portion” is provided on the back surface of the base body of the carriage and is used to prevent the base of the carriage main body from being deformed even when a heavy load is loaded. The form which arrange | positions this reinforcement part to a trolley | bogie main body base part can be selected arbitrarily, and if a reinforcement part is attached in addition to a rib, intensity | strength can be enlarged further.
The shape of the reinforcing part is preferably a long tubular body into which the insertion part of the cart accessory can be inserted. Moreover, circular, elliptical, rectangular, square, hexagonal, etc. can be illustrated regardless of the cross-sectional shape of the tube. Furthermore, the portion where the insertion portion does not reach may be solid. Moreover, the material of the said reinforcement part can be arbitrarily selected with iron, resin, wood, etc.
In addition, the reinforcing portion can include a fixing hole at a position corresponding to the fixing protrusion and / or the fixing screw hole of the insertion portion to be inserted. As illustrated in FIGS. 2 to 4, the fixing hole may be a perfect circular fixing hole 232 or an elliptical fixing hole 233. Of these, the oval fixing hole 233 can be a good example. This is because it is easy to insert and fix the fixing protrusion of the insertion portion. In addition, it is easy to align with the fixing screw hole.

For example, as shown in FIG. 2, the reinforcing portion can be provided along the rib. Further, the attachment position of the reinforcing portion is not particularly limited, and the reinforcement portion may be attached in any one direction, two directions, or all directions of the vertical direction, the horizontal direction, and the oblique direction. And the number is not particularly limited. In addition, the attachment method of the reinforcing portion is not particularly limited. As illustrated in FIG. 3, the reinforcing portion is fixed so as to be sandwiched between the metal fitting 3 or the like and the cart body base portion 21. Examples include fitting and fixing, adhesive fixing, and embedding and fixing in the base of the carriage main body.
Further, as illustrated in FIGS. 2, 5, and 6, the reinforcing portion 23 is provided so that at least one opening end portion 231 is exposed by aligning the opening portion 24 of the carriage main body base portion 21. it can. This exposure means that the rod-shaped insertion part 52 can be inserted into the opening end 231 of the reinforcing part 23 through the opening 24 as illustrated in FIG. Further, the opening and the opening end may be provided in contact with each other, or the opening 24 and the opening end 231 may be provided with an interval as shown in FIG.
Further, when the insertion portion is inserted into the opening end portion, the edge portion of the opening portion 24 is formed so that the edge portion of the opening portion can contact the insertion portion, as illustrated in FIG. It may be extended to the axial center side of the opening end 231, or may be greatly opened so as not to contact as illustrated in FIG. 6. In the case where the edge portion extends so as to contact the insertion portion, it is possible to suppress the insertion portion from dropping due to friction generated between the edge portion and the insertion portion. In particular, when the base body of the carriage is made of a polymer matrix and a vulcanized rubber body dispersed therein, it is possible to further prevent the insertion part from dropping off due to a large friction. Moreover, when opening large so that it may not contact, it can suppress that the edge part of an opening part rubs and wears with attachment or detachment of an insertion part.
When there is one reinforcing portion provided on the main body of the carriage, one or more opening end portions of the reinforcing portion are exposed through the opening. Moreover, when the reinforcement part provided in the trolley | bogie main body is two or more, what is necessary is just to expose one or more opening edge parts through an opening part in one or more reinforcement parts, and it exposes through an opening part. It does not matter if there are unreinforced parts.
In addition, as illustrated in FIG. 2, an example in which the reinforcing portion 23 is attached in two places vertically and horizontally along the rib 22 can be given. As the mounting method, there is a method of fixing through a plate attached to the carriage main body with bolts and nuts. The fixing tool is not limited as long as it can be fixed. Moreover, it can also fix with a caster using the stopper which fixes the wheel of a caster to a trolley | bogie main body base. For example, as illustrated in FIGS. 2 to 4, the reinforcing portion 23 can be fixed so as to be sandwiched between the wheel mounting bracket of the caster 3 and the carriage main body base 21. Such a fixing method can fix the reinforcing portion 23 at the same time as the caster 3 is mounted, and when the cart is discarded, when the caster 3 is removed, the reinforcing portion 23 is also separated from the base body base at the same time. Therefore, separation can be easily performed, which is preferable.
The reinforcing portion can be embedded in the rib using any means such as insert molding. If this is the case, the reinforcing portion can be incorporated at the same time when the cart body is molded, which is efficient. In addition, there is no need to prepare a member for fixing separately, and there is an advantage that there is little risk of dropping off.

The “non-slip plate” is provided in a recess formed on the surface of the base body of the carriage. The anti-slip plate mainly serves to prevent the load on the carriage from slipping, and preferably has a roughness higher than the surface of the carriage main body base.
The shape of the anti-slip plate is not particularly limited and can be any shape. Examples of the shape include a simple shape such as a quadrangle shape, a circle shape, and a track system, and a shape shaped like an outline of a character or a figure. Examples of these characters and figures include company names and product names, initials, marks, logos, etc., and other designs. Moreover, you may provide the groove | channel and protrusion which followed the pattern, such as a lattice and a parallel line, and the outline of a character, a figure, etc. on the surface of a non-slip board.
Further, the number and size of the anti-slip plates are not particularly limited, and can be arbitrarily selected. Further, the anti-slip plate can be provided at any position as long as it is the surface of the base body base. For example, it may be provided on the entire surface of the base body base or substantially the entire center part, provided along the periphery of the base body base, and a plurality of anti-slip plates may be provided at predetermined positions. Further, when the anti-slip plate is provided at a predetermined position, it can be arranged arbitrarily. For example, one non-slip plate may be provided on the front side as illustrated in FIG. 10 (see the anti-slip plate 93), provided on the back side, or provided at the center (see the non-slip plate 92). Moreover, when providing in the right-and-left side of a trolley | bogie main body base, you may provide on a straight line and may divide | segment and provide in two or more. Furthermore, when providing in a center part, you may provide separately in a center part and this side.
In addition, the anti-slip | skid board used for these arrangement | sequences is not limited to the shape illustrated in each figure, It can be made into arbitrary shapes. Moreover, it can also arrange | position combining the illustrated several arrangement | sequence.
Further, the anti-slip plate can be used in various colors. For example, as illustrated in FIG. 10, if the anti-slip plate 91 is yellow, the anti-slip plate 92 is red, the anti-slip plate 93 is green, and the cart body is made of black waste tire, the black cart body base When these colors emerge on the surface of 21, it becomes colorful and the design can be further improved.

An example of a cart body provided with the above-described anti-slip plate will be described.
For example, a non-slip plate having a stamped portion displaying an initial can be used. In addition, the punched portion is not limited to the initial, and other designs such as a mark, a logo, a company name, and the like can be attached. Further, a horizontally long non-slip plate is disposed at the lower center portion. In addition, the company name, product number, etc. can be displayed on the punched portion of the anti-slip plate. Thus, it is possible to give a design property and an identification function to the anti-slip plate. It should be noted that it may not be punched out.

The material of the non-slip plate is not particularly limited as long as it has a function as an anti-slip material. For example, rubber and resin can be used. Among these, those composed of a particulate or chip-like vulcanized rubber body and a polymer binder for joining the vulcanized rubber body can be mentioned. These vulcanized rubber bodies and polymer binders can be made of the same material as the vulcanized rubber body and polymer binder used for the base body of the carriage.
The ratio of the vulcanized rubber body and the polymer binder constituting the non-slip plate can be arbitrarily selected. For example, the weight ratio is 99: 1 to 70:30 (particularly preferably 99: 1 to 75:25, More preferably, 98: 2 to 80:20) can be mentioned. Further, the weight ratio can be appropriately changed according to the hardness of the vulcanized rubber body, the type of luggage loaded on the carriage, and the like. Moreover, in order to have such a function as a slip stopper, for example, the rubber hardness can be 35 to 65 degrees (preferably 40 to 60 degrees).
The anti-slip plate can be prepared by any means, and can be obtained, for example, by mixing a particulate or chip-like vulcanized rubber body and a polymer binder and casting them. For example, as illustrated in FIG. 16, the molding by casting is performed by adding a particulate or chip-like vulcanized rubber body 96 a and a polymer binder 96 b to the container 95 at the above ratio and mixing well so as to be uniform. The homogenized mixture 96 is poured into a mold 98. And when the said mixture 96 dries and becomes a non-slip board, it takes out from a shaping | molding die.
As shown in FIG. 17, the anti-slip plate produced in this way forms a so-called “sea-island structure” in which an “island” called a vulcanized rubber body 96a exists with respect to an “sea” called a polymer binder 96b. ing.
Further, the anti-slip plate is not limited to the above casting, and for example, a vulcanized rubber body and a polymer binder may be press-molded.

The shape and size of the concave portion in which the anti-slip plate is provided can be arbitrarily selected, and can usually be substantially the same as or slightly larger than the anti-slip plate. Further, the depth of the recess may be any depth that allows the anti-slip plate to come into contact with the load placed on the base of the carriage main body, for example, the anti-slip plate is more than the upper surface of the base of the base of the carriage main body excluding the recess. The upper surface can be raised by 0 to 6 mm (preferably 1 mm to 4 mm).
The means for attaching the non-slip plate to the recess can be arbitrarily selected, and examples thereof include adhesion by an adhesive, fitting in the recess, and thermal bonding between the anti-slip plate and the base body of the carriage.
An example of the attachment of such a non-slip plate to the base body of the carriage will be described with reference to FIG. A recess 6c having a depth H2 of 1 to 7 mm (preferably 2 to 5 mm) from the surface 6a to the bottom surface 6b of the base body of the carriage is provided, and a non-slip plate 20 is fitted to engage with the recess 6c. Yes. The bottom surface 6b and the anti-slip plate lower portion 20b are bonded with an adhesive. The height H1 from the carriage main body base surface 6a to the anti-slip plate surface 20a is 0 to 6 mm, preferably 1 mm to 4 mm. In order to enhance the anti-slip effect in this way, it is preferable that the surface of the anti-slip plate slightly protrudes from the surface of the base body base.

The formation method of the said recessed part can be selected arbitrarily. Moreover, it is usually manufactured by integrally molding at the time of manufacturing the cart body base. Furthermore, the insert mold which forms the said recessed part of a different shape can be made to be attachable or detachable to the metal mold | die for producing a base | body body base. By using such a telescopic mold, it can be produced by replacing only the telescopic mold portion provided on the base mold of the carriage main body. For this reason, even when the shape of the anti-slip plate is changed, it is not necessary to change the entire mold of the base of the carriage main body, and it is possible to reduce the labor for mold production and to produce it at low cost.
And in the case where any one of the non-slip plates 91, 92, 93 provided on the base of the single carriage main body illustrated in FIG. 15 is unnecessary, the convex mold at that part is removed, By installing a die that is flush with the portion other than the portion where the nested mold is used, the non-slip plate can be eliminated. As a result, the surface of the molded base body base can be flush with the portion where the anti-slip plate is not attached. In this case, a slight convex groove formed by the periphery of the mold is formed on the surface of the base of the molded carriage main body due to the slight clearance around the nested mold.

The “rib” is a long plate-like body formed on at least one of the vertical direction, the horizontal direction, and the diagonal direction on the back surface of the base body base. The number of ribs is not particularly limited, but is preferably 5 to 10 in the longitudinal direction. Also in the lateral direction, 5 to 10 are preferable.
As shown in FIG. 2, longitudinal and lateral ribs 22 are formed on the back surface of the base body base. The ribs may be only in the vertical direction, only in the horizontal direction, or only in the oblique direction, or a combination thereof.
Further, the rib can be fixed so that the reinforcing portion does not easily fall off by pressing the reinforcing portion by being spread by the holding member.

  The “clamping member” only needs to be able to clamp the reinforcing portion between the base body of the carriage and the material and shape thereof can be arbitrarily selected. Further, the rib adjacent to the reinforcing portion may be pressed and expanded. This is because the ribs that are spread out press the reinforcing portion and can be fixed so that the reinforcing portion does not easily fall off.

As the caster provided at the base of the carriage main body, a caster used in a normal carriage can be used, and the material, structure, number, attachment position, attachment method, and the like are not particularly limited.
Moreover, a normal caster can be suitably selected according to the use of the carriage. For example, a soft wheel is used when loading a light load that does not like vibration, and a hard wheel is used when loading a heavy load.
When selecting various casters, the position of the hole of the caster mounting bracket may be different, but in such a case, by providing caster mounting holes in various positions on the base of the carriage body in advance, Various types of casters can be provided on a single base body base.
On the other hand, when a different type of caster is used for each lot, the mold for forming the caster mounting hole of the caster to be attached to the cart is made a detachable telescopic type so that the position of the caster mounting hole can be changed. be able to. When manufacturing the cart main body base having different positions of the caster mounting holes, it can be manufactured by exchanging the nesting portion, so that the work efficiency can be improved.
Furthermore, the member which fixes a caster to the trolley | bogie main body base 21 is covered and arrange | positioned, and it can serve as a clamping member.

  The “cart accessory” can be used by being attached to the cart. For example, the handle 5 illustrated in FIGS. 7 and 8 and the connecting members 6, 7a, 7b, 8a illustrated in FIGS. , 8b, 8c and the like. Further, the shape of the handle can be arbitrarily selected, and the shape and material of the handle main body, the presence or absence of a hinge structure that allows the handle main body to be folded, and the like can be arbitrarily selected. Further, the form of the connecting member can be arbitrarily selected, and the connecting member 6 including the bendable connecting member main body 61 made of chains and strings illustrated in FIG. 11 and insertion portions 62 and 63 provided at both ends thereof is provided. Can be mentioned. Moreover, it is further provided in the trolley | bogie connected by the 1st fitting part 251 and the 2nd fitting part 261 which are illustrated in FIG. 12, and the connection by the first fitting part 251 and the second fitting part 261 can be maintained. The connection member 7 can be mentioned. Further, as illustrated in FIGS. 13 and 14, two or more carts 1a and 1b are connected in the vertical direction, and a movable cart provided with a plurality of shelves so that a gap is formed between the carts 1a and 1b. The connection member 8 which can comprise a connection body can be mentioned.

The insertion part provided in the carriage accessory may be a rod-like body that can be inserted into the reinforcement part of the carriage, and the material thereof is not particularly limited. Further, as illustrated in the insertion portion 52 in FIG. 8 and the insertion portions 62 and 63 in FIG. 11, the drop-out from the reinforcement portion 23 is prevented by being fitted and fixed in the fixing holes 232 and 233 provided in the reinforcement portion 23. “Fixing protrusions 521, 621, 631” that can be prevented can be provided. In addition, the fixed protrusion may have a fixed protruding amount, or an elastic body such as a spring, which normally protrudes from the insertion portion, but temporarily protrudes by being pushed into the insertion portion. You can also. Such a pushable fixing protrusion can increase the protrusion amount as compared with the fixing protrusion whose protrusion amount is fixed, and can prevent the dolly accessory from falling off as it is more difficult to be removed from the fixing hole of the reinforcing portion. Further, when removing the cart accessory, it can be easily removed by pushing it through the fixing hole and eliminating the protrusion of the fixing protrusion.
Further, the insertion portion can be provided with a “fixing screw hole” at a position corresponding to the fixing hole. The cart accessory can be fixed to the reinforcing portion 23 by screwing a screw into the fixing screw hole through the fixing hole.

As illustrated in FIGS. 11 to 14, the present bogie coupling body includes the plural bogies 1 a and 1 b and coupling members 6, 7 a, 7 b, 8 a, 8 b, and 8 c that are bogie accessories. .
The cart assembly is combined with various coupling members so as to meander in one row in the vertical and horizontal directions illustrated in FIG. 11 and loads a long object longer than the carts 1a and 1b. Connected together to load a larger one than the carts 1a and 1b, connected in the height direction illustrated in FIG. 13 to load a large amount with a small bottom area, and connected with a handle illustrated in FIG. Arbitrary configurations can be selected according to the application and purpose, such as making it easy to hold a large amount of the bottom area with the member 8c.

Hereinafter, the bogie main body and the bogie of the present invention will be specifically described with reference to the first embodiment.
As shown in FIGS. 1 to 5, the bogie main body 2 includes a substantially flat bogie main body base 21, a rib 22, and a reinforcing portion 23 in which an elastic body using a waste tire is molded.
Further, as shown in FIG. 2, the vehicle body base 21 is provided with caster mounting holes 28 that are through holes from the front surface to the back surface. Further, as shown in FIG. 2, ribs 22 are integrally provided on the back surface of the cart body 2 in the long side direction and the short side direction, and the strength of the cart body 2 is maintained by these ribs 22. Further, a reinforcing portion 23 which is a metal square tube is provided between the ribs 22. Further, two short reinforcing portions 23 are provided so as to bridge the long reinforcing portions 23 between the two long reinforcing portions 23 arranged in parallel.
Further, the opening end portions 231 on both ends of the long reinforcing portion 23 are exposed through the opening portions 24 provided on the side surfaces of the vehicle main body base portion 21. Furthermore, the opening end 231 is provided at a position deeper than the opening 24 so that the reinforcing portion 23 does not collide when the first fitting portion 251 and the second fitting portion 261 are fitted. In addition, the width and height of the opening 24 are formed narrower than the inner diameter of the opening end 231.

The production method and molding method of the elastic body used for the carriage main body base 21 will be described below. First, the waste tire was crushed into a size corresponding to a diameter of 5 mm. Next, the waste tire crushed material and polypropylene as a polymer binder were put into a mixer equipped with stirring blades at a weight ratio of 60:40 and stirred. By this stirring, the crushed waste tire and the polymer binder were heated, and the polymer binder was melted to obtain an elastic body in a gel state. The elastic body in the gel state was molded by a pressure molding machine to produce a cart body.
In addition, the crushed material of the waste tire protruded slightly on the surface of the bogie body 2, and roughness was observed.

As shown in FIG. 1, the bogie 1 includes a bogie main body 2 and four casters 3 provided at the lower portion of the bogie main body 2.
Further, as shown in FIG. 3, the caster 3 includes two wheels 31 that can freely change directions as front wheels of the carriage, and is a fixed wheel that can advance the carriage body in the longitudinal direction as a rear wheel of the carriage. Two 32 are provided. Further, a reinforcing portion 23 is sandwiched between the caster 3 and the cart body base 21 of the cart body 2, and the caster 3 also functions as a clamping member of the reinforcing portion 23.
Furthermore, since the cart main body base 21 is reinforced by the reinforcing portion 23, it is possible to load a load that cannot be supported by the cart main body base 21 alone. In particular, even if the cart body base 21 is softer than the material used in the conventional cart body base, it is possible to load a load having a weight equal to or greater than that of the conventional resin cart.

Furthermore, the cart 1 can insert the insertion part of the cart accessory from the opening 24 on the side surface of the cart, and can fix the cart accessory to the cart.
For example, as shown in FIGS. 7 and 8, the handle 5 made of a metal pipe including a U-shaped handle main body 51 and an insertion portion 52 provided at the bottom of the handle main body 51 can be fixed. The carriage 1 to which the handle 5 is fixed can hold the handle 5 and move the load in the same manner as a conventional carriage having a handle. Moreover, since both are being fixed by the friction between the reinforcement part 23 and the insertion part 52, attachment / detachment is possible and the handle 5 does not fall out easily while using the trolley | bogie 1. FIG. In particular, the width and height of the opening 24 are formed to be narrower than the inner diameter of the opening end 231, the opening 24 and the insertion portion 52 are also in contact, and the carriage main body base 21 is an elastic body having a rough surface. Friction is also generated between the portion 23 and the insertion portion 52 so that the handle 5 does not fall off during use of the carriage 1.
In addition, since various types of cart accessories such as the handle 5 and the connecting member 6 can be provided on one cart body and the cart, they can be transported by the same cart even for different uses.

Furthermore, since the reinforcing part 23 is pressed and fixed by the rib 22 that is pushed and spread by the caster 3 that is a holding member, it does not easily fall off, and the strength of the carriage body 2 can be maintained.
Moreover, since the cart body is an elastic body in which a vulcanized rubber body is bonded with a polymer binder, it has excellent impact resistance and cushioning properties. Furthermore, since the load is less likely to be damaged, and the waste rubber crushed material from which the surface of the carriage main body protrudes finely has an elastic roughness, it is particularly effective as an anti-slip of the load.

Moreover, as shown in FIG. 9, the longitudinal direction of the cart body base 21 is obtained by fitting the first fitting portion 251 and the second fitting portion 261 of the two carts 1a, 1b or more. Can be used in that state. Further, as shown in FIG. 10, the first and second fitting portions 252 and 262 of two carriages 1 a, 1 b or more are fitted together so that the carriage main body base 21 is connected in the short direction. And can be used in that state. Further, by fitting the first fitting portion 251 and the second fitting portion 261 and the first fitting portion 252 and the second fitting portion 262 of the two carts 1a, 1b or more of the carts 1 It can be used in this state by connecting vertically and horizontally.
By connecting the first fitting portion 251 and the second fitting portion 261 and / or the first fitting portion 252 and the second fitting portion 262 in this manner, a loading that requires a wider and flat loading surface is required. Objects can be loaded and transported.

As illustrated in FIG. 11, the cart connection body 41 of the second embodiment is a wobbling cart connection body in which the two carts 1 a and 1 b illustrated in the first embodiment are connected by the connecting member 6.
Since the carts 1a and 1b are the same as the cart 1 in the first embodiment, the description thereof is omitted.
The connecting member 6 includes a connecting member main body 61 formed of a chain, insertion portions 62 and 63 provided at both ends of the connecting member main body 61, and the reinforcing portions 23 of the carriages 1a and 1b. The fixing projections 621 and 631 that fit in the fixing holes 232 and 233 are provided. The insertion portions 62 and 63 of the connecting member 6 are inserted and fixed to the reinforcing portions 23 of the carriages 1a and 1b, respectively.
Such a carriage connection body 41 can carry and load a flexible and long load in a non-straight path without the direction of the carriages 1a and 1b being forced by the carriages 1b and 1a.

As shown in FIG. 12, the trolley coupling body 42 of the third embodiment is twice as long in the short direction of the trolley main body base 21 in which the two trolleys 1 a and 1 b shown in the first embodiment are connected by the coupling members 7 a and 7 b. It is a dolly connected body.
Since the carts 1a and 1b are the same as the cart 1 in the first embodiment, the description thereof is omitted. In addition, the first fitting portion 252 and the second fitting portion 262 are connected to each other in the short direction of the carriage main body base 21.
The connecting members 7 a and 7 b are made of metal and include a rod-like connecting member main body 71 and insertion portions 72 to 77 provided at positions corresponding to the opening 24 of the connecting member main body 71. The insertion portions 72 to 77 of the connecting members 7a and 7b are inserted and fixed to the reinforcing portions 23 of the carriages 1a and 1b, respectively.
Such a trolley coupling body 42 is coupled in the short direction of the trolley main body base 21 by fitting the first fitting portion 252 and the second fitting portion 262 of the trolleys 1a and 1b, and the coupling members 7a and 7b. Since the fitting of the first fitting portion 252 and the second fitting portion 262 does not come off due to the connection, the first fitting portion 252 and the second fitting portion 262 are moved even if the carriage coupling body 42 is moved on a floor with many irregularities. Is not released and the carriages 1a and 1b are not separated.

As shown in FIG. 13, the cart connection body 43 of the fourth embodiment can be used as a two-stage shelf with casters by connecting the two carts 1a and 1b shown in the first embodiment with the connecting members 8a and 8b. It is a truck assembly.
Since the cart 1a is the same as the cart 1 in the first embodiment, the description thereof is omitted. The cart 1b is a cart main body 2 that removes the caster 3 from the cart 1 in the first embodiment and instead provides a flat plate as a clamping member to clamp the reinforcing portion 23 (not shown). Furthermore, the carts 1a and 1b are arranged up and down with a gap.
The connecting members 8 a and 8 b are made of metal and include a rectangular connecting member main body 81 and an insertion portion 81 provided at a position corresponding to the opening 24 of the connecting member main body 81. Further, the insertion portions 81 of the connecting members 8a and 8b are inserted and fixed to the reinforcing portions 23 of the carriages 1a and 1b, respectively.
Such a carriage connecting body 43 is a two-stage caster in which the carriages 1a and 1b are arranged with a gap in the vertical direction by connecting with the connecting members 8a and 8b, and a load can be placed on the base of each carriage main body. Can be used as a shelf with shelves.
The cart 1b may be provided with casters 3. This is because it can be used immediately as a normal carriage 1 after removing the connecting members 8a and 8b. Further, the connecting members 8a and 8b may be connected to form a single connecting member.

As shown in FIG. 14, the cart connection body 44 of the fifth embodiment is used as a two-stage caster and a shelf with a handle in which the connection member 8 b of the cart connection body 43 shown in the fourth embodiment is replaced with a connection member 8 c with a handle. It is a dolly connected body that can be.
Since the carts 1a and 1b and the connecting member 8a are the same as the carts 1a and 1b and the connecting member 8a in the fourth embodiment, the description thereof is omitted.
The connecting member 8c is a connecting member that can be used as a handle by bending the upper part of the connecting member 8b into a U shape.
Similar to the fourth embodiment, the carts 1a and 1b are arranged such that the carts 1a and 1b are spaced apart from each other in the same manner as in the fourth embodiment, and a load is placed on each cart body base. Can be used as a shelf with two-stage casters. Furthermore, since the connecting member 8c that can be used as a handle is provided, it is easier to grasp and carry.

Example 6 is the trolley body with the anti-slip plate and the trolley with the anti-slip plate shown in FIG.
The bogie body and the bogie of the sixth embodiment are the same as those of the first embodiment except that anti-slip plates 91, 92, 93 for anti-slip are provided in the recesses formed on the surface of the bogie main body base 21 shown in the first embodiment. It has the same configuration. .
As shown in FIG. 17, the cart body base 21 is provided with a recess 6c having a depth H2 of 5 mm from the surface 6a to the bottom surface 6b of the cart body base, and the anti-slip plate 91 or the like is engaged with the recess 6c. Is inserted. The bottom surface 6b and the lower part 20b of the anti-slip plate are bonded with an adhesive. The height H1 from the surface 6a of the base body base to the anti-slip plate surface 20a is 1 mm.

The non-slip plates 91 and 92 were prepared by mixing a green colored rubber chip, a urethane-based binder, and polypropylene in a weight ratio of 60:20:20, and pouring them into a mold made of a mold.
Here, as the colored rubber chips, waste rubber pulverized products made of end materials of caster wheels having a size of 0.5 mm to 5 mm were used.

  As shown in FIG. 17, the bogie main body base 21 of the present embodiment has a vertically long non-slip plate 91 disposed on both sides of the surface, and a large non-slip plate 92 disposed in the center. Yes. In the non-slip plate 92, the punched portion 92a displays the initial "K". Since the base of the cart body is used without coloring the crushed material of the black rubber packing used for the window frame, it becomes a form that floats on the green non-slip plates 91 and 92 with respect to the base of the black cart body. Is also excellent.

In addition, in this invention, it can be set as the aspect variously changed within the range of this invention according to the objective and a use, without being restricted to what is shown to the said Example. For example, the trolley body base portion of each embodiment has the opening 24, but the invention is not limited thereto, and the insertion portion of the trolley accessory may be directly inserted into the opening end 231 of the reinforcing portion 23.
Moreover, the anti-slip | skid board shown in each figure is not limited to the shape of a character, It can be set as the shape which shaped arbitrary illustrations and patterns.

It is a model perspective view for demonstrating this truck. It is a model bottom view for demonstrating the back surface of the trolley | bogie main body of this trolley | bogie. It is a schematic side view for demonstrating the side surface of the trolley | bogie main body of this trolley | bogie. It is a schematic side view for demonstrating the structure of an opening edge part vicinity in the elongate side surface of the trolley | bogie main body of this trolley | bogie. It is a schematic side view for demonstrating a mode that the opening part is formed smaller than the opening edge part in the short side surface of the trolley | bogie main body of this trolley | bogie. It is a schematic side view for demonstrating a mode that the opening part is formed larger than the opening edge part in the short side surface of the trolley | bogie main body of this trolley | bogie. It is a model perspective view for demonstrating the trolley | bogie which provided the handle as a trolley | bogie accessory. It is a schematic side view for demonstrating the side surface of the trolley | bogie main body of the trolley | bogie which provided the handle as a trolley | bogie accessory. It is a model perspective view for demonstrating the state which connected the two trolley | bogies to the long side direction by the 1st fitting part and the 2nd fitting part. It is a model perspective view for demonstrating the state which connected the two trolley | bogies to the short side direction by the 1st fitting part and the 2nd fitting part. FIG. 5 is a schematic side view for explaining a side surface of a truck assembly in which a coupling member is provided as a truck accessory and the truck is connected. It is a model side view for explaining the side of a truck connected object which provided a connecting member as a truck accessory, and also connected a truck in the direction of a short side by the 1st fitting part and the 2nd fitting part. It is a model side view for explaining the side of a truck connected object which provided a connecting member as a truck accessory, and connected a truck in the up-and-down direction. FIG. 6 is a schematic side view for explaining a side surface of a cart assembly in which a coupling member with a handle is provided as a cart accessory and the cart is connected in the vertical direction. It is a model top view for demonstrating this bogie with a non-slip board. It is a schematic cross section which shows the process of creating a non-slip board. It is a schematic cross section for demonstrating the state by which the non-slip | skid board was provided in the recessed part of the trolley | bogie main body base.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Carriage, 2; Carriage body, 21; Carriage body base, 22; Rib, 23; Reinforcement part, 231; Open end part, 232, 233; Fixing hole, 24; Opening part, 251, 252; Part, 261, 262; second fitting part, 27; anti-slip plate, 28; caster mounting hole, 3; caster (clamping member), 31, 32; wheel, 41, 42, 43, 44; 5; handle, 51; handle main body, 52, 62, 63, 72 to 77; insertion portion, 521; fixing protrusion, 6, 7a, 7b, 8a, 8b, 8c; connection member, 61, 71, 81; Body, 96a; Vulcanized rubber body, 96b; Polymer binder, 6c; Recess.

Claims (14)

Trolley body base,
A plurality of long plate-like ribs on the back surface of the base body of the carriage and formed in at least one of the vertical direction, the horizontal direction and the diagonal direction;
A reinforcing portion made of a long tubular body provided along the rib or embedded in the rib,
A cart main body characterized in that at least one opening end portion of the reinforcing portion is exposed, and the insertion portion of a cart accessory having a rod-like insertion portion can be inserted into the opening end portion. The reinforcing portion is sandwiched between the cart main body base and the clamping member,
The cart main body according to claim 1, wherein the rib adjacent to the reinforcing portion is spread by the clamping member to press the reinforcing portion.   The bogie body according to claim 1 or 2, wherein the reinforcing portion includes a fixing hole that fits with a fixing protrusion and / or a fixing screw hole formed on a peripheral surface of the insertion portion.   The one side surface of the cart main body base and the other side surface to be paired are each provided with a first fitting portion and a second fitting portion that are fitted in the vertical direction. Bogie body.   The bogie main body according to any one of claims 1 to 4, wherein the bogie main body base includes a polymer matrix and a vulcanized rubber body dispersed in the polymer matrix.   The base body of the carriage is obtained by adding the vulcanized rubber body and the polymer matrix material to a mixing apparatus equipped with stirring blades and stirring, and then pressure-molding the vulcanized rubber body and the polymer binder. The trolley body according to claim 5. Further comprising a non-slip plate provided in a recess formed in the surface of the base of the carriage body,
The cart body according to claim 5 or 6, wherein the anti-slip plate comprises a vulcanized rubber body in a particulate or chip shape and a polymer binder that joins the vulcanized rubber body.   The bogie body according to claim 7, wherein the surface of the anti-slip plate has a surface roughness greater than that of the bogie body base.   The cart body according to any one of claims 1 to 8, wherein the vulcanized rubber body is made of waste rubber.   The cart body according to any one of claims 1 to 9, wherein the vulcanized rubber body is a powder piece.   A cart comprising the cart body according to any one of claims 1 to 10, and a caster provided at a lower portion of the cart body.   The cart according to claim 11, wherein the reinforcing portion is sandwiched between the cart body and the caster. Further comprising the above-mentioned cart accessory,
The cart according to claim 11 or 12, wherein the cart accessory is a handle including a handle body and a rod-shaped insertion portion connected to the handle body and having one end side inserted and fixed to the opening end portion. A plurality of carriages and carriage accessories according to claim 11 to 13,
The cart accessory is a coupling member comprising a coupling member main body and a plurality of insertion portions whose one end is inserted and fixed to the opening end of each cart and the other end is connected to the coupling member main body. A cart assembly characterized by the above.

Images