JPH0128093Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a base device for a rail for running a paving machine.

[Conventional technology]

When paving pavements using asphalt mixtures or cement concrete, flatness of the pavement surface is strongly required, not only for so-called playing courts such as tennis courts, various stadiums, and other special pavement fields, but also for general roads. Often.

Therefore, paving road finishing machines and the like are used, but since the work is laborious and time-consuming, attempts have been made to use conventional paving machines themselves to improve flatness and finish the pavement surface. .

[Problem that the invention seeks to solve]

However, since the paving machine itself is very heavy, weighing several tons, when it runs directly on the pavement surface and performs surface finishing or flattening work, the load applied may cause it to reverse. The disadvantage is that a pavement surface with sufficient flatness cannot be obtained.

In particular, when paving on a planned foundation work by appropriately controlling the bearing capacity of the subgrade or roadbed, in order to create a resilient pavement such as for stadiums and other types of playing courts, The drawbacks are notable.

Therefore, as a means to overcome this drawback, as schematically shown in FIG. 1, a pair of formworks 1, 1 and its Paving machine running rails 2, 2 are laid immediately outside, and the left and right chassis 3, 3 running on these rails 2, 2 are interconnected with a girder 4, and a A paver 6 equipped with a movable paving device 5 is assembled, and as shown by arrow A, the paver 6 is first run in the X direction to perform paving work, and then turned back and extended in the Y direction. Techniques have already been provided for paving the pavement surface C using the following methods.

That is, the above-mentioned drawbacks are to be overcome by providing a special running rail for the paving machine and running the paving machine on it.

However, in this prior art, as shown in the cross-sectional view of FIG. 2 and the side view of FIG.
Since the base members 1a, 1a, etc. were fixedly installed at predetermined intervals in the longitudinal direction using bolts, etc., the unevenness of the installation surface S caused the problem as shown in Fig. 4. The installation status of formworks 1, 1, etc. was often not aligned on a line parallel to the planned pavement surface. In this way, if the formworks 1, 1... are not on a line parallel to the planned paving surface, the paving machine running rail 2 will not be parallel to the planned paving surface, so the paving machine 6 running on this rail 2 will The paved surface C had a drawback in that it was not possible to form a finished surface with the desired flatness. Therefore, if there is a part on the installation surface S of the formwork 1 that is lower than the standard height so that the installation status of the rail 2 can be adjusted to a height parallel to the planned paved surface, as shown in Figure 5, A liner 7 made of crushed stone, sand, or plywood is interposed between the installation surface S and the formwork 1 to raise the height of the formwork 1, and there is a portion on the installation surface S of the formwork 1 that is higher than the standard height. In this case, the installation height of the formwork 1 was lowered by cutting the installation surface S. Furthermore, since these adjustment operations are mainly performed manually, the rail installation operations including these adjustment operations require a great deal of effort and time.

Particularly when paving playing courts such as tennis courts, stadiums, and tracks, uniform pavement thickness and high degree of flatness are required, and as a result, it is necessary to adjust the installation height of the rails with even higher precision. Then,
The amount of time and effort involved in making these adjustments has been a major factor in increasing costs in paving work.

In the case of playing courts such as tennis courts and stadiums, the pavement only bears the dynamic loads of the players and does not need to withstand heavier loads; The bearing capacity of the foundation works such as the roadbed or roadbed is planned to be sufficient as necessary.
Therefore, during paving work, the rail 2 and formwork 1 often sink due to the weight of the paving machine 6, and the sinking is often non-uniform in the longitudinal direction of the rail 2. Therefore, in order to maintain highly accurate adjustment of the rail laying height, it is necessary to readjust it frequently, and paving work is interrupted each time, requiring a lot of effort and time. This was a major cause of cost increase.

In order to overcome these drawbacks and inconveniences, a rail for a paving road finishing machine having a pipe structure as seen in Japanese Utility Model Publication No. 46-23774 has been developed.

However, this is just a rail for a finishing machine for general paving roads, not a rail for paving machines that weigh several tons. Moreover, this pipe-structured paving road finishing machine rail has two adjustment points for height adjustment, and there are multiple points along the length of the rail, so it takes time and effort to adjust the height. However, there was a drawback that it was not connected with so-called abbreviation.

In any case, there is no height-adjustable rail that supports extremely heavy paving machines and is suitable for paving work in areas such as playing courts that are subject to load restrictions, and there is a strong need for the development of such rails. Ta.

This invention was developed in response to the above-mentioned demands, and is particularly suitable for use as a base device for paving machine rails used for paving in areas where there are restrictions on running heavy machinery, such as tennis courts and stadiums. This is what we provide.

[Means to resolve the problem]

A plurality of supports on which nuts are fixed are fixed at regular intervals on a base plate made of a long steel plate with a long U-shaped cross section, and on the other hand, a diametrical engagement is made on the outer peripheral surface of the head of the bolt that is screwed into the nut. A stop hole is formed, a rail receiving metal fitting is rotatably attached to the top surface of the head of the bolt, and the rail is fixed to the rail receiving metal fitting with a bolt or a clamp fitting.

[Effect]

Since the base device for a paving machine running rail according to the present invention is constructed as described above, first, the base plate constituting the device is installed parallel to the roadbed on which paving work is to be performed. The base plate is fixed with a support stand having a nut fixed thereto at a certain interval, and a bolt having a locking hole on the outer periphery of the head is screwed into the nut of the support stand. There is a rail holder on the head of the bolt, and if you place the rail on this rail holder and tighten the rail to the rail holder with a bolt or clamp, it will be extremely stable and sturdy. A track for running paving machines will be installed. At that time, if the track level, that is, the rail height, is out of line with the planned paved surface, insert a boat made of iron rod etc. into the locking hole on the outer periphery of the bolt head and rotate it to the left or right. This is for level adjustment.

〔Example〕

Next, the present invention will be explained in detail based on one embodiment. First, FIG. 6 is an overview perspective view showing the state in which the paving machine running rail 11 is installed using the base device of the present invention, FIGS. 7 and 8 are sectional views and side sectional views of the base device, and FIGS. FIG. 11 is a perspective view showing the constituent parts of the base device, and FIG. 12 is a side view showing how the rails are installed. The paving machine running rail 11 has a paving machine running surface 11a, and this rail 11
is supported by a rail receiving fitting on a base plate arranged in the longitudinal direction. As shown in FIGS. 7 and 8, the base device 10 having this rail receiving metal fitting is composed of a base side member, that is, a support stand 12, a rail side member, that is, a rail holder 13 that is made up of a bolt 17 and a rail receiving metal fitting 18. There is. As shown in the perspective view of FIG. 9, the support stand 12 includes a base plate 14 made of a long iron plate whose cross section common to a plurality of adjacent support stands 12, . Support plates 15, 15 made of a pair of iron plates welded across this, and a nut fixed by welding between both support plates 15, 15 at a height position above the base plate 14 with a predetermined interval. 16
It consists of On the other hand, the rail pedestal 13 has a height adjustment bolt 17 shown in a perspective view in FIG.
and the rail receiving fitting 18 shown in the perspective view of FIG.
The bolt 17 is a nut 16
A male screw 17a screwed into the female screw 16a, a head 17b, locking holes 17c, 17c, .
A convex portion 17d for engaging the rail receiver is planted on the top surface of the
and has. In addition, the rail receiving bracket 18 has bolts 1
A base 18a resting on the head 17b of No. 7, and a base 18a
Attachment portions 18b, 18b curved forward and backward; a through hole 18c that extends through the base portion 18a and engages the narrow diameter portion 17e of the convex portion 17d of the bolt 17 in a rotatable but non-releasable manner; and the attachment portion 18b. , 18b to the rail 11 with bolts b, b.
8d, 18d,...

Therefore, in the base device 10 of this embodiment, the bolt 17 is screwed into the female screw 16a of the support base 12,
The narrow diameter portion 17e of the bolt 17 is connected to the rail receiving fitting 18.
Since the rail receiving fitting 18 is fixed to the bottom surface of the rail 11 by engaging with the through hole 18c of the rail 11, when adjusting the height position of the running surface 11a when the rail 11 is initially installed, or when adjusting the height of the running surface 11a, When readjusting the height position of the running surface 11a during paving work performed by running a paving machine similar to the paving machine 6 shown in the figure, a boat (not shown) made of an iron rod or the like is inserted into the locking hole 17c of the bolt 17. By inserting a suitable tool such as (omitted) and rotating the bolt 17, adjustment work can be performed simply by moving the bolt 17 up and down with respect to the support base 12.

Note that when assembling the base device 10, the bolt 17 or the rail receiving fitting 1 is inserted in order to engage the through hole 18c of the rail receiving fitting 18 with the small diameter portion 17e of the bolt 17.
Although illustration of the structure to be provided at 8 is omitted, this structure is not specified. For example, by attaching the protrusion 17d to the head 17b by screwing or the like, the rail receiver 18 is placed on the head 17b with the protrusion 17d removed, and then the protrusion 17d is attached to the head 17b. Thereafter, the mounting portions 18b, 18b of the rail receiving fitting 18 may be mounted to the rail 11. Further, a notch is provided in the base 18a of the rail receiving fitting 18, and the small diameter portion 17e of the bolt 17 is inserted into the through hole 1 along this notch.
It is also possible to guide it up to 8c and assemble it.

Although the embodiments of the present invention have been described above, the present invention is not limited thereto, and various changes can be made without departing from the spirit of the present invention. For example, in the embodiments, the rails are fastened to the rail receiving fittings using bolts, but it is of course possible to use fixing fittings such as clamps or other fixing means.

[Effect of idea]

Since the base device for a paving machine running rail according to the present invention has the configuration as described above, it has the following effects compared to a conventional running rail having a pipe structure, for example.

(1) The base of the underlayment device itself that supports the rail is a so-called base plate made of a long steel plate with an elongated U-shaped cross section, so the ground surface against the roadbed is stable.

(2) Since the rail itself is supported by the rail support fitting on the top surface of the bolt head located at the center of the support stand fixed to the base plate, the load applied to the rail is It is supported as a vertical load and does not become an unbalanced load. In other words, it is a stable structure.

(3) As explained in (1) above, because the base of the device is composed of a base plate with a wide ground surface and a fixed length, there is a limit to the supporting capacity of a roadbed such as a playing court. Regardless of the location, the load is supported and distributed on the surface. Therefore, localized uneven subsidence is unlikely to occur. In other words, even if there are restrictions on the supporting capacity of the roadbed to be paved, it can be safely used as a rail for running heavy machinery.

(4) To adjust the rail height position, simply insert the boat into the locking hole cut into the outer circumferential surface of the bolt head and rotate it, making it easy to adjust during work. In particular, since the structure is such that the load on the device does not become uneven, it is easy and safe to operate.

(5) Since the device has a simple and small number of parts, it is easy to prepare for adjusting the rail height position to maintain a running surface parallel to the planned paving position, and it is easy to adjust the rail height position to maintain a running surface parallel to the planned paving location. Adjustment is also easy.

Therefore, it is possible to install this type of rail in a short time and with high precision.

(6) As explained in (3) above, even if the roadbed is weak and as a result the rail level is out of alignment, it can be easily readjusted to the planned paved surface.

Further, it is easy to maintain the horizontal height of the upper surface of the bolt at a position parallel to the paved road surface.

As described above, the underlayment device for paving machine running rails according to the present invention is structurally extremely simple and has a structure that supports the load applied via the rail as a vertical load on the device, so it is well-balanced. It's safe. Of course, the height can be adjusted during work, and the structure has a small number of parts, making it easy to perform a series of tasks from installation to height adjustment during use and removal after use, making it possible to simplify paving work. This is something that can make a major contribution.

[Brief explanation of the drawing]

Figure 1 is a schematic perspective view showing how the paving machine is used, Figure 2 is a sectional view of the conventional formwork and rail for running the paving machine, Figure 3 is a side view of Figure 2, and Figure 4 is the rail. FIG. 5 is a side view showing a state in which the rails are not aligned, and FIG. 5 is a side view showing a state in which the rail height position is adjusted by a conventional method. 6 to 12 show one embodiment of the present invention, FIG. 6 is a perspective view showing the state of use of the base device, FIG. 7 is a sectional view of FIG. 6, and FIG. 8 is a side sectional view of FIG. 7. Figure 9 is a perspective view of the base side member, Figure 10 is a perspective view of the base side member.
FIG. 11 is a perspective view of the bolt, FIG. 11 is a perspective view of the rail receiver, and FIG. 12 is a side view showing a state in which the height position of the rail is adjusted. DESCRIPTION OF SYMBOLS 10... Base device, 11... Paving machine running rail, 11a... Running surface, 12... Support stand, 13... Rail pedestal, 14... Base plate, 15... Support plate,
16... Nut, 17... Bolt, 17c... Locking hole,
18...Rail receiving metal fittings.

Claims (1)

[Scope of utility model registration request] A plurality of supports on which nuts are fixed are fixed at regular intervals on a base plate made of a long steel plate with a long U-shaped cross section, and on the other hand, a diametrical engagement is made on the outer peripheral surface of the head of the bolt that is screwed into the nut. For running paving machines, the gist is that a stop hole is cut, a rail receiving metal fitting is rotatably attached to the top surface of the head of the bolt, and the rail is fixed to this rail receiving metal fitting with a bolt or a clamping metal fitting. Rail underlayment equipment.