JP3121039U - Telescopic pavement material leveling rake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leveling rake of a highly durable pavement material, the length of which can be easily adjusted, and to provide a leveling rake of a pavement material having high durability. The first handle comprises a cylindrical second handle so that the first handle can be housed therein, and a fastening fixture is provided at the tip of the first handle housed in the second handle. By releasing the tightening and fixing of the first handle and the second handle by twisting the second handle in a predetermined direction, by tightening and fixing the first handle and the second handle by twisting in the opposite direction, In a paving material leveling rake in which the length of the entire handle can be freely changed, the fastening fixture and the first handle are connected to one of a combination of rivets, pins, screws, bolts, bolts and nuts. Stretchable pavement material leveling rake, characterized by being fixed by one metal fitting selected.
[Selection] Figure 4

Description

  The present invention relates to a leveling rake for a pavement material that can suitably level a pavement material such as a roadbed material, an asphalt mixture, and concrete.

  When pavement materials such as roadbed materials, asphalt mixture, concrete, etc. are spread manually, the leveling work is generally performed using rakes. Here, for example, when performing work while passing the vicinity of the paved location through vehicles or pedestrians in repair work, when constructing the vicinity of the central portion of the paved location, use a long rake and when constructing the end You must use a short rake with a handle that will not interfere with the vehicle or pedestrians. As described above, in order to perform the pavement work at one place, it is necessary to prepare several types of rakes having different handle lengths.

On the other hand, as shown in Patent Document 1, there is a paving rake in which the length of the handle can be adjusted with one touch according to the work situation. If this is the case, the length of the handle can be adjusted freely or stepwise, so there is no need to use rakes having different types of handle lengths, and workability is significantly improved. Among them, the handle is doubled, and the one that can easily adjust the length of the handle simply by twisting the outer handle is most useful.
Utility model registration number 3007032

  However, because the fixture for adjusting and fixing the length of the handle is fragile, the handle cannot be fixed relatively early in use, and this makes it impossible to adjust the length of the handle. There was a problem that durability as a leveling rake was low.

  An object of the present invention is to provide a leveling rake of a highly durable pavement material that can be easily adjusted in length to a handle.

In order to solve the above problems, the present invention is configured as follows.
It comprises a leveling plate, a first handle with the leveling plate fixed to the tip, and a cylindrical second handle so that the first handle can be accommodated therein, and the second of the first handle. By tightening the second handle in a predetermined direction, the first handle and the second handle are released from being clamped and fixed in the opposite direction. In the leveling rake of the paving material in which the length of the entire handle can be freely changed by tightening and fixing the first handle and the second handle by twisting, the fastening fixture and the first handle are A stretchable pavement material leveling rake fixed by a metal fitting selected from any one of rivets, pins, screws, bolts, and combinations of bolts and nuts. By fixing the first handle (the handle that goes inward with the double handle) and the fastening fixture, the durability of the fastening fixture is improved and the stretchability can be maintained for a long time. Durability as a leveling rake with high paving material is significantly improved.

  By using a stretchable pavement material leveling rake with the above configuration, the length of the handle can be adjusted freely according to the pavement location and work space, and the rake that improves workability significantly has its characteristics for a long time. It can be used in a state where

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a stretchable pavement material leveling rake 1. The handle is doubled, and is formed in a cylindrical shape so that the leveling plate 4 can be accommodated inside the first handle 2 attached to the tip via the leveling plate fixing bracket 5. It consists of a second handle 3. The first handle 2 is inserted into the second handle 3 and the tip of the first handle 2 accommodated in the second handle 3, that is, the one on which the leveling plate 4 is fixed, A fastening fixture 6 for fastening and fixing the first handle 2 and the second handle 3 is attached to the tip in the opposite direction.

  FIG. 2 is an elevation view of the fastening fixture 6, and FIG. 3 is a plan view of the conventional fastening fixture 6. The fastening fixture 6 includes a substantially cylindrical support portion 7 having a groove portion 7a whose depth is gradually different, and a C-type retaining ring 8 having a thick end portion. As indicated by the broken line arrow in FIG. 2, the groove portion 7a is fitted. On the other hand, the support portion 7 is fixed to the first handle 2 as shown in FIG. 3, and is inserted into the second handle 3 (not shown in FIG. 3). Here, when twisted in the direction of the solid line arrow in FIG. 2, the handle 2 and the second handle 3 are fixed first via the fastening fixture 6. Fixing is released by twisting in the opposite direction. The first handle 2 and the second handle 3 may be slid in the released state, and fixed at a position where the length of the handle becomes a desired length.

  Here, as shown in FIG. 3, the conventional fastening fixture 6 is only fixed by the first handle 2 and the adhesive 9. Therefore, when the fixing and unlocking operations are repeated, it is relatively early. As a result, the adhesive 9 is damaged, and fixing of the fastening fixture 6 and the first handle 2 is impaired. That is, first, the pattern 2 and the second pattern 3 cannot be fixed, and the durability as a paving material spread rake is low.

  In view of this, the stretchable pavement material leveling rake according to the present invention, as shown in the plan view of FIG. 4, penetrates through the first handle 2 and inserts the metal fitting 10 halfway through the fastening fixture 6. 6 and the first handle 2 are fixed by the metal fitting 10. The metal fitting 10 may be a rivet, a pin, a screw, a bolt, or a slicing bolt embedded as long as its head 10a is shaped and sized so as not to interfere with the second handle 3. It may be fixed with a nut.

  Further, as shown in the plan view of FIG. 5, the metal fitting 11 of another form may be a combination of a rod-like rivet, a pin, a screw, a bolt and a nut that penetrates all of the first handle 2 and the fastening fixture 6. Also in this case, it is assumed that the head 11a has no trouble when stored in the second handle 3.

  A conventional product in which the fastening fixture 6 is fixed with an adhesive by fixing the fastening fixture 6 and the first handle 2 using the fitting 10 shown in FIG. 4 or another type of fitting 11 shown in FIG. Compared with, the durability is much improved. As a result, the stretchable pavement material leveling rake of the present invention has a much longer service life than conventional stretchable pavement material leveling rakes, providing a long-term, convenient and highly workable state. Can be maintained.

  1 is a plan view of a stretchable pavement material leveling rake according to the present invention.   FIG. 6 is an elevational view of the fastening fixture 6.   It is a top view of the fixing part of the conventional fastening fixture 6 and the 1st handle | steering-wheel 2. FIG.   It is a top view of the fixing | fixed part of the fastening fixture 6 and the 1st handle | steering_wheel 2 of this invention.   It is a top view of the fixing | fixed part of the fastening fixture 6 and the 1st handle | steering_wheel 2 by the metal fitting 11 of another form of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Extendable pavement material spread leveling rake 2 1st handle 3 2nd handle 4 Leveling plate 5 Leveling plate fixing bracket 6 Tightening fixture 7 Support part 7
7a Groove 8 C-type retaining ring 9 Adhesive 10 Metal fitting 10a Head 11 of metal fitting 10 Another type of metal fitting 11a Head of another type of metal fitting 11

Claims (1)

  It comprises a leveling plate, a first handle with the leveling plate fixed to the tip, and a cylindrical second handle so that the first handle can be accommodated therein, and the second of the first handle. By tightening the second handle in a predetermined direction, the first handle and the second handle are released from being clamped and fixed in the opposite direction. In the leveling rake of the paving material in which the length of the entire handle can be freely changed by tightening and fixing the first handle and the second handle by twisting, the fastening fixture and the first handle are A stretchable pavement material leveling rake fixed by a metal fitting selected from any one of rivets, pins, screws, bolts, and bolts and nuts.

Images