JPH0733778U - Truck carrier assembly structure - Google Patents

Abstract

(57) [Summary] [Purpose] The work of attaching vertical joists and horizontal joists to the chassis can be greatly simplified, and at the same time, the work of attaching cargo bed components, oil supply pipes, distribution lines, etc. to the vertical joists is also simplified. The present invention also provides an assembling structure of a truck carrier that can be eliminated. [Structure] A vertical joist 1 made of aluminum having a dovetail groove 1A on its upper surface, a plurality of vertical joist bolts 5 having its head loosely fitted in the dovetail groove 1A, and a dovetail groove 2A provided on its side surface. A horizontal joist 2 made of aluminum, and a plurality of lateral joist bolts 8 with the head loosely fitted in the dovetail groove 2A, and the lateral joist 2
A connecting member 3 having bolt holes for inserting the vertical joist bolt and the horizontal joist bolt, respectively, for fixing the vertical joist to an arbitrary position on the vertical joist 1, and a vertical joist fixing means for fixing the vertical joist to the chassis. Prepare A dovetail groove is also provided on the side surface of the vertical joist so that the head portion of the connecting bolt 6 for fixing the luggage carrier constituent member is loosely fitted thereto, and the vertical joist is integrally provided with a through hole 7 serving as a substitute for hydraulic piping.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention makes it possible to assemble the vertical joists and lateral joists, which are the base members of the truck bed, and the material of the bed bed into the truck chassis much easier and faster than before. Regarding the assembly structure.

[0002]

[Prior art]

 FIG. 3 shows a conventional example of a method for attaching a vertical joist and a horizontal joist to a truck chassis. A vertical joist 52 is provided on the upper surface of each of the two longitudinal members 50, 50 (only one side thereof is shown in the figure) which are arranged opposite to each other and which constitute the chassis, with a spacer 51 interposed therebetween. Tapping is stopped in each case. A plurality of horizontal joists 53, which are placed in parallel with each other at a predetermined interval so as to be straddled between the two vertical joists 52, 52, have vertical joists via a bracket 54 made of a small angle member. It is bolted to 52, 52. Each of the vertical joist 52 and the lateral joist 53 is shaped steel or aluminum extruded material. Reference numeral 55 is the bolt, and 56 is the bolt hole. Reference numeral 57 denotes an oil supply pipe to the wing roof hydraulic cylinder, which is screwed and fixed to the lower surface of the horizontal joist 53 using a stopper (not shown). Reference numeral 58 is a U-bolt which is a member constituting the cargo bed, and is fixed in a state in which it is inserted into a hole 59 provided in the vertical joist 51.

[0003]

[Problems to be solved by the device]

 In general, truck manufacturers ship without mounting the cargo bed, and the cargo bed portion is designed and assembled so that the cargo truck manufacturer suits each purpose of use of the truck user. The design specifications of the chassis that assembles the cargo bed are different for each truck maker. Therefore, the mounting positional relationship between the vertical joist 52 and the horizontal joist 53 to be assembled to the chassis differs depending on the structures of the chassis and the cargo bed. Therefore, in order to open a large number of bolt holes 56 through which a large number of bolts 55 are inserted, it is necessary to carry out a series of marking work, punching, provisional hole formation, and main hole formation to accurately determine the positions of the respective holes. As a result, an experienced assembler will spend considerable effort and time to perform this task. As a result, the cost of manufacturing the cargo bed increases, and the delivery time is delayed, which leads to a win. In addition, the auxiliary work of screwing the oil supply pipes and distribution lines for hydraulic equipment and electric devices to the lateral (vertical) joists using the fasteners was also extremely troublesome as above. Therefore, the purpose of the present invention is to greatly simplify the work of attaching the vertical joists and the horizontal joists to the chassis, and also to attach the cargo bed component members, oil supply pipes, and distribution lines to the lateral (vertical) joists. An object is to provide an assembling structure of a truck carrier that can be simplified or omitted.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, a truck bed assembly structure according to the present invention is a structure in which a vertical joist and a horizontal joist serving as a base member of the truck are assembled to a truck chassis. A vertical joist 1 made of an aluminum extruded material provided with a dovetail groove 1A, and a plurality of vertical joist bolts 5 having the head thereof loosely fitted in the dovetail groove 1A, and a dovetail groove in the longitudinal direction of the outer surface. 2A, which is made of aluminum extruded material, and a plurality of lateral joist bolts 8 which are loosely fitted to the dovetail groove 2A with their heads retained, the vertical joist 1 and the lateral joist 2, A connecting member 3 provided with bolt holes 3a and 3b through which the vertical joist bolt 5 and the lateral joist bolt 8 are inserted, respectively, for connecting the vertical joist 1 and the vertical joist 1 to the chassis. It is configured to include fixing means . Then, a dovetail groove 1B is also provided in the longitudinal direction of the vertical joist 1 and the head of the connecting bolt 6 for fixing the constituent members of the loading platform to the longitudinal joist 1 is loosely fitted in the dovetail groove 1B. Further, the vertical joist 1 is integrally formed with a through hole or groove 7 which serves as a substitute for an oil supply pipe that supplies hydraulic equipment and also serves as an insertion hole for a distribution line. The outer surface of the vertical joist 1 has a through hole. It is advisable to attach a position indicating mark a. As the vertical joist fixing means, a dovetail 4A is formed on the upper surface in the longitudinal direction thereof. The long spacer 4 is fixed on the chassis by welding, screwing or the like, and is formed on the lower surface of the vertical joist 1. It may be configured with a dovetail groove 1D into which the dovetail 4A of the spacer 4 is fitted.

[0005]

[Action]

 In order to assemble the vertical joist 1 and the lateral joist 2 which are the base parts of the loading platform on the upper surface of the chassis, first of all, spacers are placed on the upper surfaces of the two longitudinal stringers that are opposed to each other and form a chassis. 4 is attached, and the vertical joist 1 is fixed on the spacer 4 by the vertical joist fixing means. Then, while straddling the two vertical joists 1 and 1, a plurality of lateral joists 2 are temporarily placed in parallel at predetermined intervals, and each of the longitudinal joists 1 and 2 The connecting members 3 are temporarily arranged at the intersections. In this state, a plurality of lateral joist bolts 8 whose heads are loosely fitted in the dovetail groove 2A of the lateral joist 2 are slid along the grooves to be positioned at the lateral joist bolt holes 3b of the connecting member 3. The connecting member 3 is fixed at a predetermined position of the lateral joist 2 by bringing it into this hole and fastening it with a nut. Next, slide a plurality of vertical joist bolts 5, the heads of which are loosely fitted in the dovetail groove 1A of the vertical joist 1, along the grooves to bring them to the positions of the vertical joist bolt holes 3a of the connecting member 3. Unlike the prior art, the work of connecting and fixing the connecting member 3 by straddling the vertical joist 1 and the lateral joist 2 at the respective connecting points by inserting it through the lever hole and fastening it with the nut is different from the conventional technique. The bolt holes are accurately drilled in a large number of points on each of the vertical joist 1 and the lateral root 2, and the procedure is completed simply and quickly without any troublesome work. Further, also in the work of fixing the luggage carrier constituting members 10 and 12 such as rods and strips to the side surface of the vertical joist 1, the connecting bolt 6 loosely fitted in the dovetail groove 1B on this side surface It is possible to perform simply and quickly without sliding the bolt holes in the vertical joist 1 simply by sliding it along the rail and bringing it to the mounting position of the luggage carrier constituting members 11 and 12. Further, if the through hole (groove) 7 formed integrally with the vertical joist 1 is used as a substitute for the oil supply pipe for supplying hydraulic equipment or as an insertion hole (groove) for a distribution line, the oil supply pipe or distribution pipe In addition to saving the trouble of fixing the electric wire to the horizontal (vertical) joist, the oil supply pipe and the electric wire protection pipe are not required in the portion where the through hole 7 is provided. Moreover, if the dovetail 4A is provided on the upper surface of the spacer 4 attached to the chassis and the dovetail groove 1D provided on the lower surface of the vertical joist 1 is inserted into the dovetail 4A, it is troublesome for welding and screwing. The vertical joist 1 can be easily and quickly fixed on the chassis without any trouble.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 2 shows a state in which the vertical joist 1 and the lateral joist 2 are assembled on the stringer 50 that constitutes the chassis. Metal long spacers 4 and 4 are welded or bolted to the upper surfaces of a pair of right and left steel stringers 50 and 50 that are placed opposite each other at a predetermined interval. A dovetail groove 4A is provided on the upper surface of the spacer 4 (see FIG. 1). Two vertical joists 1 and 1 fixed on the spacers 4 and 4 as will be described later, and a plurality of lateral joists 2 horizontally laid on the spacers 4 and 4 in a parallel manner as shown in FIG. At each of the intersections, bolts are connected to each other through a connecting member 3 made of a short and small arugul material.

The vertical joist 1 is made of aluminum extruded into a substantially rectangular tube shape and has a length substantially the same as that of the cargo bed. Dovetail grooves 1A, 1B, 1C and 1D are provided on the upper, lower, left and right sides of the vertical joist 1 over the entire length of the longitudinal joist 1. A plurality of vertical joist bolts 5 are assembled in the dovetail groove 1A on the upper surface in a state where the heads of the bolts 5 are loosely fitted in the grooves, and the heads are attached to both side surfaces in the groove. It can be slid along the groove while being sandwiched between and locked. Similarly, among the left and right dovetail grooves 1B, 1C, a plurality of connecting bolts 6 are assembled in the dovetail groove 1B facing outward of the vehicle body in a retaining state in which the respective heads are loosely fitted in the grooves. It is slidable in the groove direction. The dovetail groove 1D on the lower surface is shaped so that the dovetail 4A on the upper surface of the spacer 4 can be closely fitted thereto. Each dovetail groove 1A to 1D also serves to increase the strength of the aluminum vertical joist 1.

Further, the side wall surface of the vertical joist 1 has a thicker thickness in the lower portion thereof, and two through holes 7, 7 vertically extending through the vertical joist 1 are formed in this portion in a vertical direction. It is formed integrally with 1. The through hole 7 serves as a substitute for an oil supply pipe for an oil cylinder for opening and closing a wing roof that covers a cargo bed, for example, and also serves as an insertion hole for a distribution line to various electric devices.

The horizontal joist 2 is made of extruded aluminum having a U-shaped cross section, and its length is substantially equal to the lateral width of the luggage carrier. On the side surface of the lateral joist 2, a dovetail groove 2A is provided outward of the groove over its entire length. A plurality of horizontal joist bolts 8 are attached to the dovetail groove 2A in a state in which each head is loosely fitted in the groove, and the heads in the groove are secured to the groove in a rotation-preventing state. It is possible to slide along.

The angle-shaped connecting member 3 arranged in the horizontal direction is provided with one bolt hole 3 a through which the vertical joist bolt 5 is inserted, in the central portion of the horizontal surface thereof. Two bolt holes 3b, 3b through which the lateral joist bolt 8 is inserted are provided near both ends of the vertical surface.

Reference numeral 10 shown in FIG. 1 is a U-bolt as a member for forming a cargo bed, and bolt holes 11 a through which the connecting bolt 6 is inserted are provided on both left and right sides of the connecting plate 11 welded to the upper end side thereof. In addition, a bolt hole 12a for the connecting bolt 6 is also provided at the end of the strip-shaped member 12 that serves as another member forming the cargo bed. Numeral 13 is a floor frame material made of aluminum extruded material, and as shown in FIG. 2, it is laid across between the ends of a plurality of lateral joists 2 arranged in parallel.

Next, the operation of the above configuration will be described. As shown in FIG. 2, in order to assemble two vertical joists 1 and a plurality of horizontal joists 2 on the two longitudinal stringers 50, 50 that are arranged in parallel, first of all, The pacers 4 are welded (or bolted) to the upper surfaces of the stringers 50, respectively. Then, if the dovetail groove 1D on the lower surface of the vertical joist 1 is fitted in the dovetail 4A on the upper surface of the spacer 4 in a sliding manner, it will be mounted on the steel stringer 50 by the aluminum vertical material which does not work well. The joist 1 can be fixed easily and quickly without the troublesome bolt fastening method.

Next, the plurality of horizontal joists 2 are laid across the two vertical joists 1 and 1 that are arranged in parallel, and the lateral joists 2 are temporarily placed in parallel at a predetermined interval. A connecting member 3 is temporarily placed at each intersection of 1 and lateral joist 2. In this state, the horizontal joist bolt 8 loosely fitted in the dovetail groove 2A of the lateral joist 2 is slid along the groove and moved to the position of the bolt hole 3b on the vertical surface of the connecting member 3 to be inserted into this hole. When the nut is fitted and fastened, the vertical surface of the connecting member 3 is fixed at a predetermined position of the lateral joist 2.

Subsequently, the vertical joist bolt 5 loosely fitted in the dovetail groove 1 A on the upper surface of the vertical joist 1 is slid along the groove and moved to the position of the bolt hole 3 a on the horizontal plane of the connecting member 3. If the nut is inserted through the hole and fastened, the horizontal surface of the connecting member 3 is fixed to the vertical joist 1 and the work of connecting the vertical joist 1 and the lateral joist 2 via the connecting member 3 is easy and quick. You can finish in. The remaining connecting members 3 may be sequentially attached in the same manner as above. Thus, unlike the prior art, the connecting work of all the intersections of the vertical joist 1 and the lateral joist 2 is inefficient in drilling a large number of bolt holes one by one at their respective predetermined accurate positions. Since no work is required, it can be completed in an extremely short time. The order of attaching the connecting member 3 across the vertical joist 1 and the horizontal joist 2 is as follows. First, the horizontal surface of the connecting member 3 is screwed to the vertical joist 1 and then the vertical surface is screwed to the lateral joist 2. Of course you can do it as well.

Then, in order to fix the U bolt 10 or the strip-shaped member 12 which is a member constituting the loading platform to the side surface of the vertical joist 1, the connecting bolt 6 placed in the dovetail groove 1B on the side surface in a loose fit beforehand is placed. Then, slide it along the groove to bring it to the mounting position of the luggage carrier constituting members 10, 12, insert it into the bolt hole and tighten the nut. Therefore, it is possible to omit the work of forming the mounting bolt holes of the luggage carrier constituent member in the vertical joist 1 one by one.

When it is desired to arrange the oil feeding pipe along the vertical joist 1, as shown in FIG. 1, a pipe joint 9 A is screwed to the end of the through hole 7 integrally formed in the vertical joist 1. If worn, the through hole 7 can be used as a substitute for the oil feeding pipe. Therefore, as in the conventional method, it is extremely troublesome to install the oil feeding pipe along the vertical joist 1 by screwing it to the horizontal and vertical joists 2 and 1 using multiple fasteners. The oil supply pipe can be omitted only in the portion of the through hole 7.

When the through hole 7 is to be used partially as an oil feeding pipe, the reference numeral b in FIG. 1 is set from an arbitrary predetermined position on the through hole position indicating mark a provided on the side surface of the vertical joist 1. As shown by a dotted line with a circle, a pipe connection hole may be opened toward the through hole 7, and the pipe joint 9A may be connected to this hole. The end of the through hole 7 may be closed with the plug 9B. Or, even if you want to wire from the onboard battery to the electric device installed at the rear of the cargo bed, you can insert the distribution line through the through hole 7 and save the cost of wiring installation and the purchase cost of the wiring protection tube at the same time. .

In the above structure, the object of the present invention can be achieved even if the detailed structure is appropriately changed in design. For example, the dovetail groove 1A on the upper surface of the vertical joist 1 is omitted, the vertical joist bolt 5 is attached to the dovetail groove 1B on the side surface in the same manner as described above, and the lateral joist bolt 8 is a different one provided on the bottom surface or the upper surface of the lateral joist 2. It may be assembled in the dovetail groove. In that case, the shape of the connecting member 3 may be appropriately changed in accordance with the arrangement state of the bolts 5 and 8. A plurality of dovetail grooves may be provided in parallel on one surface of the vertical joist 1 and the lateral joist 2. The cross-sectional shapes of the vertical joist 1 and the lateral joist 2 are not limited to the shapes shown in the figure, and may be appropriately determined in consideration of the required strength. Further, instead of the through hole 7, a groove for holding the oil supply pipe, the distribution line or the like may be integrally formed on the surface of the vertical joist 1. Of course, the through hole 7 can be provided in the lateral joist 2.

[0019]

[Effect of device]

 As is clear from the above description, the truck bed assembly structure of the present invention exhibits various excellent effects as listed below, and as a whole, the track truck assembly cost is significantly reduced and the delivery time is shortened. And, the weight reduction of the vehicle is achieved. a) Since the heads of the bolts that connect these to each other are loosely fitted in the dovetail grooves provided on the vertical joist and the horizontal joist in a state of being retained, the vertical joist and the lateral joist, which are indispensable in the prior art, are provided. It is possible to eliminate the troublesome work of drilling a large number of bolt holes on the whole. b) The bolt loosely fitted in the dovetail groove of the vertical joist also plays a role of fixing the loading platform component member to the vertical joist. c) The dovetail groove provided on the vertical joist and horizontal joist also helps to reinforce these joists made of aluminum extruded material. d) If the through hole (groove) formed integrally with the vertical joist is used as a substitute for hydraulic piping or as an insertion hole for the distribution line, these installation costs on the vertical (horizontal) joist and oil transmission piping You can also save the purchase cost of the cable and the wiring protection tube at the same time. e) Since it is not necessary to accurately position and open bolt holes in each of the vertical joist and horizontal joist, which is extremely troublesome and requires some experience, it is easy for an unskilled person to assemble the platform. -It will be possible to do it quickly and reliably.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention and showing a state in which a vertical joist and a horizontal joist are being assembled on a stringer of a chassis.

FIG. 2 is a perspective view showing a state in which a vertical joist and a horizontal joist have been assembled to the chassis.

FIG. 3 is a view corresponding to FIG. 1, showing a conventional example.

[Explanation of symbols]

 1 Vertical joist 1A-1D Dovetail groove 2 Horizontal joist 2A Dovetail groove 3 Connecting member 3a, 3b Bolt hole 4 Spacer 4A Ali 5 Vertical joist bolt 6 Connecting bolt 7 Through hole 8 Horizontal joist bolt 9A Piping joint 9B plug 10 U bolt (load base) Constituent members) 11 Connection plates 11a, 12a Bolt holes 12 Strip plate-shaped members (packing member constituent members) 13 Floor frame materials a Through hole position display marks b Piping connection holes

Claims (5)

[Scope of utility model registration request] 1. A vertical joist made of an aluminum extruded material, which has a structure for attaching a vertical joist and a horizontal joist serving as a base member of a loading platform to a chassis of a truck, and which is provided with a dovetail groove 1A in a longitudinal direction of an outer surface. 1 and a plurality of vertical joist bolts 5 whose heads are loosely fitted in the dovetail groove 1A in a retaining state, and a lateral joist 2 made of aluminum extruded material provided with dovetail grooves 2A in the longitudinal direction of the outer surface, and A plurality of horizontal joist bolts 8 whose heads are loosely fitted in the dovetail groove 2A and the vertical joist 1 and the lateral joist 2 are connected to each other at their intersections. Assembly of a truck carrier comprising: a connecting member 3 having bolt holes 3a and 3b through which joist bolts 5 and lateral joist bolts 8 are inserted, and vertical joist fixing means for fixing the vertical joists 1 to a chassis. Construction. 2. A dovetail groove 1B is provided in the longitudinal direction of the vertical joist 1, and the head of a connecting bolt 6 for fixing the platform members 10 and 12 to the longitudinal joist 1 is retained in the dovetail groove 1B in a state where it is not pulled out. The truck carrier assembly structure according to claim 1, wherein the truck carrier assembly is loosely fitted. 3. The vertical joist 1 has a through hole or groove 7 which serves as a substitute for an oil supply pipe to hydraulic equipment and also serves as an insertion hole for a distribution line.
The truck bed assembly structure according to claim 1 or 2, wherein the truck body is integrally formed. 4. The truck bed assembly structure according to claim 3, wherein a through hole position indicating mark a indicating a formation position of the through hole 7 is provided on an outer surface of the vertical joist 1. 5. The vertical joist fixing means has a dovetail 4A formed on the upper surface in the longitudinal direction thereof, and has a long spacer 4 fixed on the chassis by welding, screwing or the like, and a lower surface of the vertical joist 1. The spacer 4 is formed on the ant 4
The dovetail groove 1D into which A is inserted and is formed, The assembling structure of the truck bed according to any one of claims 1 to 4.