JPS6343174Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a driver's seat roof structure in which an edge sealing member is fitted into the edge of a roof that covers above the driver's seat of an earthmoving vehicle to protect the operator.

[Conventional technology]

Known operator protection devices for earthmoving vehicles include sunshades (canopy tops), falling object protection devices (head guards), and fall protection structures (ROPS). The roofs that these protection devices have in common include those made of reinforced plastic (hereinafter referred to as FRP) and those made of sheet metal. However, both roofs have problems in terms of operator safety. That is, since this type of roof is made of a processed plate of FRP or sheet metal itself, the cut surface of the processed plate becomes the roof edge and is exposed. Therefore, if an operator touches the edge of the roof when inspecting the vehicle, there is a risk of injury.
This is especially dangerous if the roof is made of sheet metal. This is because sheet metal roofs are considerably heavier than FRP roofs, so steel plates that are made as thin as possible without reducing product strength are used. This is because the edge portions and corner portions tend to have sharp shapes due to the above restrictions. However, sheet metal roofs are rapidly becoming more popular in recent years, as they are cheaper than FRP roofs. Therefore, in the case of a sheet metal roof, both side edges and each corner are formed into a smooth rounded shape so that the operator will not be injured even if he or she touches these parts. However, the front and rear edges of the sheet metal roof are not rounded, and although it was thought that there was no need to do so, in reality, when an operator inspects the vehicle, the front and rear edges of the roof are not rounded. An accident occurred in which the person came into contact with the person's body and was injured. As a countermeasure, we attempted to give the front and rear edges of the sheet metal roof a radius similar to the edges on both sides. However, creating a radius on the front and rear edges of a sheet metal roof that is comparable to the radius on both sides is extremely troublesome and difficult to process, and also requires a significant increase in cost. proved difficult. Looking at the prior art, Japanese Utility Model Publication No. 52-48502 discloses a structure in which a sliding roof for an automobile combined with an insect-proof screen door is provided with a danger-preventing covering material around the periphery of the sliding roof. However, this configuration only seals the periphery, making the installation work cumbersome, and also has the disadvantage that it must be made thicker in order to increase the strength of the safety covering for use on the roof of an earthmoving vehicle. There is. Furthermore, as seen in the seal member of Utility Model Publication No. 52-50497, a hard plastic core member in which a number of spring frames with a horseshoe-shaped cross section are connected in the length direction at appropriate intervals is fitted between two legs of a compression member. Some of the most elaborate structures are known. According to this method, the core member has higher strength and elasticity than the former, but because the core member is connected in a series in the longitudinal direction, it cannot be used for the corner edge of the roof of an earthmoving vehicle that has severe bends. There is a drawback that it cannot be done.

[Problem that the invention attempts to solve]

This invention was devised in view of the above circumstances, and the problem is to provide a driver's seat roof structure for an earthmoving vehicle that is provided with an edge sealing member that can be securely and firmly attached to the bent portion of the roof edge. is to provide.

[Means to solve the problem]

In order to solve the above-mentioned problem, this idea has been developed to include a
In a roof structure in which a flexible or elastic edging seal member with a built-in core material and an elastic lip formed on the opening-side inner wall is removably fitted, (b) The elastic lips are arranged at vertically opposing positions on the inner wall on the opening side. A technical measure has been taken in which the edges are provided so as to protrude along the longitudinal direction so that the respective tip sides are inclined toward the bottom side of the groove of the edge sealing member.

[Effect]

Thereby, the edging seal member can be bent in any direction using the bending point between the built-in cored metal and the cored metal. Furthermore, the elastic lip, reinforced by this metal core, tightens the edge of the roof by a wedge action. In order to increase this tightening force, by caulking the core metal at a desired location, the edging seal member is firmly fixed to the edge of the roof due to deformation of a portion of the core metal.

【Example】

Preferred embodiments of the driver's seat roof structure for an earthmoving vehicle according to this invention will be described below with reference to the drawings. As shown in FIG. 1, the driver's seat roof structure of this earthmoving vehicle consists of a roof 3 that covers the upper part of the driver's seat 2 of the earthmoving vehicle 1, and a border sealing member 6 that is detachably attached to the edge of the roof 3. Become. The roof 3 shown in Figure 2 has a plate thickness of 0.6 mm to 5 mm.
The illustrated example is made of a thin steel plate such as sheet metal, has rounded bent portions 5 on both left and right sides, and has reinforcing members 4 rigidly joined along the front and rear upper sides. As shown in more detail in FIG. 3, this reinforcing member 4 is made of a steel material having a hat-shaped cross section, and a flange 4' of the steel material is superimposed on the roof 3 and rigidly joined by welding or the like. The roof 3 is supported by the upper end of a support 7 installed near the driver's seat 2 of the earthmoving vehicle 1, and covers the upper part of the driver's seat 2. On the other hand, the edging seal member 6 is formed integrally with a flexible film having appropriate elasticity, such as rubber or vinyl chloride, and has a groove-shaped cross section and is elongated.
In principle, the groove shape is set to have a width corresponding to the thickness of the edge of the roof 3. In the vicinity of the open end side of the edge sealing member 6, a pair of lips 8, 9 are integrally formed on both inner wall surfaces thereof, extending along the longitudinal direction and protruding in opposite directions. These lips 8 and 9 are designed to smoothly bend and deform against elastic force in a direction that facilitates the fitting of the edging seal member 6 into the corner and edge portions of the roof 3, respectively. The tip side of the edge seal member 6 is inclined toward the groove bottom side. When the edge sealing member 6 is fitted into the edge of the roof 3, each lip 8, 9 presses against the upper and lower surfaces of the edge with elastic restoring force to prevent the edge sealing member 6 from coming off. It is made of the same material as the edge seal member 6 in order to perform its function. Further, in the illustrated example, the edging seal member 6 integrally includes a plurality of core metals 10 arranged at regular intervals in the longitudinal direction as a stiffening means to prevent the groove width from changing excessively. are doing. This situation is clearly shown in FIG. That is, each of the core metals 10 is bent into a substantially U-shape, and the edging seal member 6 is arranged in the above-mentioned arrangement state.
It is covered with a film of Therefore, the edging sealing member 6 having the core bar 10 arranged as described above and covered with a flexible film can be bent in all directions (three-dimensional direction) while having rigidity that does not change the groove width excessively. Become free. Therefore, the edge sealing member 6 can be attached to the edge of the roof 3, no matter what shape the edge has. The attachment is accomplished by simply fitting the edging seal member 6 onto the edge of the roof 3 from its open end side. At the time of fitting, the lips 8, 9 of the edge sealing member 6 are easily pushed and bent in the direction of inclination by the edge portion of the roof 3. Therefore, when the edge seal member 6 is fitted, the lips 8 and 9 do not become an obstacle, and the fitting is carried out smoothly and easily. In this way, the edges of the edge sealing member 6 once attached to the edge of the roof 3 have the lips 8 and 9 pressed against the upper and lower surfaces of the edge of the roof 3 by the elastic restoring force, and this state maintains the rigidity of the core metal 10. is firmly maintained. Moreover, as shown in FIG. 3, the lips 8 and 9 are in a state in which the tips thereof are in pressure contact with the upper and lower surfaces of the edge portion of the roof 3 with their respective tips facing in the direction of their own inclination, that is, toward the inner inner wall of the edging seal member 6. Become. When a pulling force is applied to the edging seal member 6 in this state, the lips 8 and 9 are wedged between the inner wall surface of the edging seal member 6 and the upper and lower surfaces of the edge portion of the roof 3, acting like a wedge. Therefore, the edge sealing member 6 attached to the edge of the roof 3 is securely and firmly attached without the risk of coming off due to vibrations of the vehicle, etc., and when an operator inspects the vehicle, etc. It is possible to prevent injuries caused by coming into contact with so-called edges such as corners or corners. Furthermore, since the edging seal member 6 has the core metal 10, it can be more firmly attached by fitting it into the edge of the roof and caulking it with pliers or the like. Furthermore, the edge sealing member 6 may be provided with an adhesive layer in advance on the inner wall on the open end side.
In this case, the adhesive strength and the above-mentioned lip 8,
With the wedge action of 9, the mounting strength of the edge seal member 6 can be further increased. Edging seal member 6 attached to the roof edge
If the sealing member 6 becomes aged or damaged, it can be easily removed by spreading the sealing member with a screwdriver or the like, so that the edge sealing member 6 can be easily replaced. FIG. 2 shows a state in which the edge sealing member 6 is attached to the entire circumference of the edge portion of the roof 3. However, this edge sealing member 6 is effective even when it is partially attached to the edge of the roof 3. In other words, if this type of roof 3 is made of sheet metal as described above, and the rounded curved bent portions 5 are formed only on both sides as shown in FIG. The above-mentioned danger can be eliminated by partially installing the edging sealing member 6 as shown in FIG. Further, the roof 3 may be made of FRP,
In the case of the FRP roof, in which edge surfaces are formed around the entire circumference of the roof during molding, the above-mentioned danger can be eliminated by attaching the edge sealing member 6 only to the corners. obtain. It goes without saying that this invention can be applied to all types of roofs such as canopy tops, head guards, and R/O/P/S in earthmoving vehicles.

[Effect of the idea]

As described above, according to this invention, the following excellent effects are achieved. (1) Since a large number of separated core metals are built into the edging seal, the bending radius can be minimized by using the bending point between the core metals as the bending point, and the bending radius can be minimized to make a large bend in the desired direction. It can be used for edging the driver's seat roof of earthmoving vehicles with large undulations. (2) In addition, when the hemmed seal member is clamped from above and below with a bench or the like at an appropriate position, the clamped core bar is caulked to the edge of the roof, creating a seal member with a built-in approximately U-shaped core bar. Combined with its own engagement force, it can be fixed even more firmly. Further, even if a force is applied to a core metal other than the clamped core metal in a direction that causes it to come off, the core metals are separated from each other, so that they are not affected and can remain fixed to the sealing member. (3) Flexible edge sealing members are attached to the corners and edges of the roof that covers above the driver's seat of the earthmoving vehicle, or to dangerous partial edges thereof, so that operators can inspect the roof when inspecting the vehicle, etc. There is no risk of lacerations even if you touch the corners or edges. As a result, the safety of the earthmoving vehicle operator can be improved. (4) The edging seal member contains a plurality of rigid core metals arranged in the longitudinal direction and is curved into a substantially U-shape, and is formed into a groove shape in cross section, so that it can be used at the corners and edges of the roof. No matter what shape it is, it can be installed extremely easily by simply fitting it into the edges. (5) Furthermore, the inner wall of the edging seal member is integrally formed with a pair of lips that press against the roof surface with elastic restoring force when the edging seal member is attached to the roof edge. There is no risk that the attached edging seal member will come off due to vibrations of the earthmoving vehicle, and sufficient attachment strength of the seal member can be obtained. (6) Furthermore, for example, by impregnating or coating the edging seal member with fluorescent paint, it can be used as a traffic safety measure by alerting oncoming vehicles when earthmoving vehicles are working at night.

[Brief explanation of the drawing]

Fig. 1 is a side view of an earthmoving vehicle equipped with the roof structure of this invention, Fig. 2 is an enlarged perspective view of the roof shown in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4
The figure is an enlarged perspective view with a part of the edging seal member cut away, and FIG. 5 is a partial perspective view of the roof showing a state in which the edging seal member is partially attached to the edge of the roof. In the diagram, 1 is the earthmoving vehicle, 2 is the driver's seat, 3 is the roof,
Reference numeral 6 indicates an edge seal member, and reference numerals 8 and 9 indicate lips.

Claims (1)

[Scope of claim for utility model registration] On the edge of the roof covering above the driver's seat of an earthmoving vehicle,
In a roof structure in which a flexible or elastic edging seal member with a built-in core material and an elastic lip formed on the inner wall on the opening side is removably fitted, the core material built in approximately at the center in the thickness direction of the edging seal member is installed. , a plurality of core metals made of steel plates bent into a substantially U-shaped cross section are arranged in the longitudinal direction at regular intervals, and elastic lips are arranged along the longitudinal direction at vertically opposing positions on the inner wall on the opening side. A roof structure for a driver's seat of an earthmoving vehicle, characterized in that the tip side of each protrudes so as to be inclined toward the bottom side of the groove of the edging seal member.