JP2723393B2 - Roofing material splitting test equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof used for measuring the amount of deflection at the time of receiving pressure and judging the presence or absence of cracks by setting a roofing material, a field board, etc. in a state close to the roof to be actually constructed. It relates to a material splitting test device.

[0002]

2. Description of the Related Art Conventionally, in this type of test, a roof model having a fixed slope with a roof material installed through a field board is prepared, and a total load of, for example, 100 kg is applied to the model by a worker carrying luggage. A method of walking on the roof material of the roof model so as to be added, measuring the amount of deflection of the roof material and the ground board at this time, and detecting the presence or absence of cracks has been adopted.

[0003]

However, according to the conventional method as described above, since the worker must walk on a sloped roof model with a load, the worker is hard labor. In addition, since the degree of load applied to the roofing material varies from worker to worker, there is a disadvantage that the reliability of the measurement data is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a roof which can automatically perform a crossing test without leaving it to an operator and can improve the reliability of measurement data. It aims to provide a tread splitting test device.

[0005]

In order to achieve the above object, a roof material splitting test device according to the present invention comprises: a roof main body constituting a roof model on which a roof material is constructed via a roof board;
A pressurizing tester disposed on the roof main body for applying a predetermined load to the roofing material; and a pressurizing device for moving the pressurizing tester at an arbitrary pitch in the front-rear and left-right directions on the main surface of the roof main body. A testing machine moving mechanism and a measuring means for measuring the amount of deflection of the roofing material and the base plate when a load is applied at the moving position of the pressurizing test machine at every predetermined pitch, and determining whether or not cracks are present in the roofing material and the ground board. It is provided with.

[0006]

According to the above construction, the pressurizing tester is moved on the main surface of the roof main body at an arbitrary pitch in the front-back and left-right directions,
By applying a predetermined load to the roofing material, the amount of flexing or cracking of the roofing material and the ground board at that time is automatically measured via the measuring means, so that no human intervention is required, and furthermore, there is a variation. Measurement data can be obtained.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1, 2 and 3 are a side view, a plan view and a front view, respectively, showing a roofing material split test apparatus according to one embodiment of the present invention.

1 to 3, reference numeral 1 denotes a base, and 2 denotes a leg standing on the rear end of the base 1. Numeral 3 is a roof body as a model roof in which a base plate N and a roof material M (FIG. 6) are set in a state close to actual construction, and are framed in a rectangular shape.
The rear end side is pivotally supported by the leg 2 via a support shaft 4 so as to be tiltable. A base end of a cylinder device 6 for tilting the roof body is rotatably supported via a pivot 7 on a bracket 5 fixed to each of the left and right sides of the base 1. Is connected via a pivot 11 to a bracket 10 fixed to the lower part of the roof body 3. 12 is a rotary drive fixed to the base 1, 1
Reference numeral 3 denotes a gear box for transmitting the output of the rotary drive device 12 to the left and right drive shafts 14A and 14B. The drive shafts 14A and 14B are connected to gear portions 15A and 15B that drive the base end side of the cylinder device 6 in the rising direction when the cylinder device 6 extends.
The inclination angle θ of the roof main body 3 is detected by an encoder (not shown) or the like.

The roof body 3 has rails 16 (16A, 1) located on both left and right sides and extending in the front-rear direction (Y-axis direction).
A movable body 17 that can move along 6B) is provided. On both left and right sides of the movable body 17, as shown in FIG.
8, 19 are provided respectively. Reference numeral 20 denotes a first servomotor mounted on the movable body 17, and reference numeral 21 denotes a reduction gear for reducing the output of the servomotor 20. 23 (23
A, 23B) are pinion gears provided on both left and right sides of the movable body 17 and meshing with racks 24A, 24B formed on the rails 16A, 16B, respectively. The speed reducer 21 drives one pinion gear 23A via a rotary shaft 25 and directly drives the other pinion gear 23B. The first servomotor 20, the reduction gear 21, the pinion gears 23 (23A, 23B), the rack 24 (24A, 24B), and the like move at an arbitrary pitch in the front-rear direction (X-axis direction) with respect to the movable body 17. The moving mechanism 26 is configured to be moved. 27 is a coupling between the first servomotor 20 and the speed reducer 21;
8 is a coupling between the reduction gear 21 and the rotary shaft 25.

The movable body 17 is provided with a pressure tester 29 for applying a constant load to the roof material M on the roof body 3 side.
Are movably held at an arbitrary pitch in the left-right direction (X-axis direction) via the moving mechanism 30. 31 is a movable holder for holding the pressurizing tester 29, 32 is the movable body 17
Are arranged along the left-right direction, and both ends are pivotally supported members 33,
A threaded rod is rotatably supported by one end 34, and a driven pulley 35 is attached to one end thereof. Reference numeral 36 denotes a second servomotor attached to the movable body 17, and a timing belt 38 is provided between the driving pulley 37 attached to the rotating shaft 36a and the driven pulley 35 as shown in FIG. It is hanging. Movable holder 31
A screw arm portion 39 protruding from the movable holder 31 is screwed to the screw rod 32.
The pressurizing tester 29 is moved in the left-right direction via the. The screw rod 32, the servomotor 36,
The moving mechanism 30 is configured by the driving and driven pulleys 37 and 35, the timing belt 38, and the like.

As shown in FIG. 6, the movable body 17 is provided with guide members 40 and 41 positioned above and below the screw rod 32 to guide the movable holder 31 in the left-right direction. As shown in FIG. 5, the pressurizing tester 29 has a support portion 42 attached to a rotating shaft 44 supported by bearings 43A and 43B of the movable holder 31, and applies an operating force of a handle 45 to a reduction gear mechanism 46. By driving the rotation shaft 44 via the intermediary, the inclination angle of the pressure testing machine 29 can be adjusted.

As shown in FIGS. 4 to 6, the pressurizing tester 29 includes a chassis 47, a pressurizing portion 49 suspended on a shaft member 48 that can move up and down with respect to the chassis 47, A pinion gear 52 which is driven by a motor 50 fixed to the portion 47 and meshes with a rack 51 formed on the shaft member 48. The holding portion connected to the pressing portion 49 via a load cell 53 is provided. A pressure head 55 is attached to the tip of the member 54 via a pin 56 so as to swing. Reference numerals 57 and 58 denote rods that stand upright on the pressurizing portion 49 and are guided by guide cylinder portions 59 and 60 of the chassis portion 47, respectively. Reference numeral 61 denotes a potentiometer attached to the chassis 47,
Together with 3 etc., it constitutes a measuring means 62 for measuring the amount of bending of the roof material M, the ground board N and the like and detecting cracks. As the measuring means 62, a digital gauge (not shown) or the like is used.

Next, the operation of the above configuration will be described. Now, the roof body 3 is at the position shown by the chain line in FIG.
When it is desired to set this to a position having a predetermined gradient, the rotation driving device 12 is driven at the same time as the cylinder device 6 is driven. Accordingly, the piston rod 9 extends while the cylinder device 6 rises, so that the roof main body 3 can be set to a position having a gradient of a predetermined inclination angle θ shown by a solid line.

In this state, a step test of the roof material M is performed. First, the pressure test machine 29 is set at desired positions in the front-rear and left-right directions on the main surface of the roof main body 3. That is, by driving the first servomotor 20, the rotational force is reduced by the reduction gear 21 and then the pinion gear 23 is rotated.
A, 23B. This pinion gear 23A, 2
3B is meshed with racks 24A, 24B formed on the left and right rails 16A, 16B, so that the rotation of the pinion gears 23A, 23B causes the movable body 17 to move along the rail 16 at an arbitrary pitch in the front-rear direction. Moving.
By controlling the first servomotor 20, the pressure tester 29 integrated with the movable body 17 can be positioned at a predetermined position in the front-rear direction.

When the second servomotor 36 is driven, the screw rod 32 rotates via the timing belt 38, so that the movable holder 31 moves left and right. By controlling the second servomotor 36, the pressure tester 29 can be positioned at a predetermined position in the left-right direction. Further, when the handle 45 is rotated, the rotation shaft 44 is driven via the reduction gear mechanism 46, and the inclination posture of the pressure tester 29 can be adjusted.

In this state, the shaft member 48 is driven by the motor 50 of the pressure testing machine 29 via the pinion gear 52 and the rack 51 to lower the pressing portion 49, and the roof material is A constant load is applied to M.
The load at this time is measured by the load cell 53. When the pressing head 55 presses the roof material, the roof material M and the ground board N are bent and deformed. The amount of deflection is detected by the potentiometer 61. By controlling the driving of the first and second servomotors 20 and 30, the moving pitch of the pressure tester 29 in the front-rear and left-right directions is controlled, and the same measurement as described above is performed for each position. The step test can be automatically performed in the same form as when the worker walks. In other words, the worker is freed from heavy labor walking around with luggage.

[0017]

As described above, according to the present invention, a pressurizing tester is arranged on a roof main body constituting a roof model on which a roofing material is constructed via a base plate, and the pressurizing tester is moved. It is moved at a predetermined pitch in the front-rear and left-right directions by the mechanism, and a load is applied to the roofing material at the moving position for each predetermined pitch to measure the amount of deflection and cracking of the roofing material and the ground board, so that any arbitrary The step test according to the measurement specification can be automatically performed without depending on the operator. In addition, a highly reliable test can be performed with little variation in measurement data.

[Brief description of the drawings]

FIG. 1 is a side view showing a roofing material split test apparatus according to one embodiment of the present invention.

FIG. 2 is a plan view showing the roof material split test device.

FIG. 3 is a front view showing the roof material splitting test device.

FIG. 4 is a diagram showing a movable body provided with a pressure tester.

FIG. 5 is a plan view showing a moving mechanism of a movable body.

FIG. 6 is a diagram showing a configuration of a pressure testing machine.

[Explanation of symbols]

 3 Roof body (roof model) 26 Front-back direction moving mechanism 29 Pressure tester 30 Left-right direction moving device 62 Measuring means M Roof material N Field board

Claims (1)

(57) [Claims] 1. A roof body constituting a roof model on which a roof material is constructed via a field board, a pressure test machine disposed on the roof body and applying a predetermined load to the roof material;
A pressure testing machine moving mechanism for moving the pressure testing machine at an arbitrary pitch in the front-back and left-right directions on the main surface of the roof body,
And measuring means for measuring the amount of deflection of the roofing material and the ground plate when a load is applied at a moving position of the pressurizing tester for each predetermined pitch, and for determining the presence or absence of cracks thereof. Roof splitting test equipment.