JPH0545257A - Roofing material stamp breaking test - Google Patents

Abstract

PURPOSE:To perform a roofing material stamp breaking test automatically without imposing any burden on the operator and also enhance the reliability of the measuring data. CONSTITUTION:A pressurization testing machine 29 mounted on a roof body 3 as a roofing model is moved fore and aft and to the left and right by respective motion mechanisms 26, 30 at certain pitches. In each position, a specified load is applied to the roofing material by this pressurization testing machine 29, and deflection and/or cracking of the roofing material and roof boards N are measured by a measuring means 62.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a roof used to set a roofing material, a base plate and the like in a state close to a roof to be actually constructed and to measure the amount of flexure at the time of receiving pressure and to determine the presence or absence of cracks The present invention relates to a material cutting test device.

[0002]

2. Description of the Related Art Conventionally, in this type of test, a roof model having a constant slope is prepared on which a roofing material is applied through a field plate, and an operator carries a baggage and the total amount, for example, a load of 100 kg is applied to the model. A method of walking on the roof material of the roof model so as to be added, measuring the amount of bending of the roof material and the ground plate at this time, and detecting the presence or absence of cracks has been adopted.

[0003]

However, according to the conventional method as described above, the worker must walk on the roof model having a slope with a load, which is a heavy labor for the worker. Moreover, since the load applied to the roof material varies from worker to worker, there is a drawback that the reliability of the measured data is poor.

The present invention has been made in order to solve the above-mentioned problems, and a roof capable of automatically performing a stepping test without entrusting an operator and improving the reliability of measurement data. It is intended to provide a material splitting test device.

[0005]

In order to achieve the above object, a roof material splitting test apparatus according to the present invention comprises a roof main body which constitutes a roof model in which a roof material is installed via a ground plate,
A pressure tester installed on the roof body to apply a predetermined load to the roof material, and a pressure tester that moves the pressure tester on the main surface of the roof body in the front-back and left-right directions at an arbitrary pitch. A tester moving mechanism and a measuring means for measuring the amount of bending of the roofing material and the ground plate when a load is applied at the moving positions of the pressurizing tester at predetermined pitches, and for determining the presence or absence of cracks in them. It is equipped with and.

[0006]

According to the above construction, the pressure tester is moved on the main surface of the roof main body in the front-back and left-right directions at an arbitrary pitch,
By applying a predetermined load to the roofing material, the amount of flexure and cracking of the roofing material and the ground plate at that time are automatically measured through the measuring means, thus eliminating the need for human intervention and variation. It is possible to obtain measurement data with less.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. 1, 2, and 3 are a side view, a plan view, and a front view, respectively, showing a roof material splitting test apparatus according to an embodiment of the present invention.

In FIGS. 1 to 3, reference numeral 1 is a base, and 2 is a leg which is erected on the rear end of the base 1. Reference numeral 3 denotes a roof body as a model roof in which a base plate N and a roof material M (FIG. 6) are framed in a rectangular shape and set in a state close to actual construction,
The rear end side is pivotally supported by the leg body 2 via a support shaft portion 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 shaft 7 on brackets 5 fixed to the left and right sides of the base 1, respectively. Is connected to a bracket 10 fixed to the lower part of the roof body 3 via a pivot 11. Reference numeral 12 is a rotary drive unit fixed to the base 1.
A gear box 3 transmits 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 is extended.
The inclination angle θ of the roof body 3 is detected by an encoder or the like (not shown).

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

The movable body 17 has a pressure tester 29 for applying a constant load to the roof material M on the roof body 3 side.
Are held movably in the left-right direction (X-axis direction) via the moving mechanism 30 at an arbitrary pitch. 31 is a movable holder for holding the pressure tester 29, 32 is the movable body 17
Are arranged along the left-right direction, and both end sides are the shaft support members 33,
It is a screw rod rotatably supported by 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 as shown in FIG. 5, a timing belt 38 is provided between a driving pulley 37 attached to a rotary shaft 36a thereof and the driven pulley 35. It is suspended. Movable holder 31
A threaded arm portion 39 protruding from the screw is screwed into the screw rod 32, and the movable holder 31 is rotated by the rotation of the screw rod 32.
The pressure tester 29 is moved in the left-right direction via the. The screw rod 32, the servo motor 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 which are located above and below the screw rod 32 and guide the movement of the movable holder 31 in the horizontal direction. The pressurizing tester 29 has a supporting portion 42 attached to a rotary shaft 44 supported by bearings 43A and 43B of a movable holder 31 as shown in FIG. The tilt angle of the pressure tester 29 can be adjusted by driving the rotary shaft 44 via the rotary shaft 44.

As shown in FIGS. 4 to 6, the pressurizing tester 29 includes a chassis portion 47, a pressurizing portion 49 suspended from a shaft member 48 which can be raised and lowered with respect to the chassis portion 47, and a chassis. A pinion gear 52 that is driven by a motor 50 fixed to the portion 47 and meshes with a rack 51 formed on the shaft member 48 is provided, and a holding portion connected to the pressurizing portion 49 via a load cell 53. A pressure head 55 is attached to the tip of the member 54 via a pin 56 so as to be swingable. Reference numerals 57 and 58 are rods which are erected on the pressing portion 49 and are guided by the guide cylinder portions 59 and 60 of the chassis portion 47, respectively. Reference numeral 61 denotes a potentiometer attached to the chassis portion 47, which is used for the load cell 5
Together with 3 and the like, a measuring means 62 for measuring the amount of bending of the roof material M, the ground plate N, etc. and detecting cracks is configured. A digital gauge (not shown) or the like is also used as the measuring means 62.

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 at a position having a predetermined gradient, the cylinder device 6 is driven and the rotary drive device 12 is driven at the same time. As a result, the piston rod 9 extends while the cylinder device 6 rises, so that the roof body 3 can be set at a position having a predetermined inclination angle θ shown by the solid line.

In this state, the roof material M is subjected to a splitting test. 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 body 3. That is, by driving the first servo motor 20, the rotational force thereof is reduced by the reduction gear device 21 and then the pinion gear 23.
It is transmitted to A and 23B. This pinion gear 23A, 2
3B meshes with racks 24A, 24B formed on the left and right rails 16A, 16B, so that the movable body 17 is moved along the rail 16 in the front-rear direction at an arbitrary pitch by the rotation of the pinion gears 23A, 23B. 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 servo motor 36 is driven, the screw rod 32 rotates via the timing belt 38, so that the movable holder 31 moves in the left-right direction. By controlling the second servo motor 36, the pressure testing machine 29 can be positioned at a predetermined position in the left-right direction. Further, if the handle 45 is rotated, the rotation shaft 44 is driven via the reduction gear mechanism 46, and the tilt posture of the pressure tester 29 can be adjusted.

In this state, the motor 50 in the pressure tester 29 drives the shaft member 48 via the pinion gear 52 and the rack 51 to lower the pressure portion 49, and the pressure head 55 to move the roof material. Apply a constant load to M.
The load at this time is measured by the load cell 53. When the pressure head 55 presses the roof material, the roof material M and the base plate N are flexibly deformed. The amount of bending and the like are detected by the potentiometer 61. By driving and controlling the first and second servomotors 20 and 30, the forward and backward and left and right movement pitches of the pressure tester 29 are controlled, and the same measurement as above is performed at each position. The split test can be automatically performed in the same manner as when the worker walks. In other words, workers are freed from the heavy labor of walking around with their luggage.

[0017]

As described above, according to the present invention, the pressure tester is arranged on the roof body constituting the roof model in which the roof material is installed through the base plate, and the pressure tester is moved. The mechanism is used to move in the front-back and left-right directions at a predetermined pitch, and a load is applied to the roof material at each predetermined pitch movement position to measure the amount of bending and cracking of the roof material and the field board. It is possible to automatically perform a crossing test with measurement specifications without depending on the operator. Moreover, there is little variation in measurement data, and a highly reliable test can be performed.

[Brief description of drawings]

FIG. 1 is a side view showing a roof material splitting test apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view showing the roof material splitting test apparatus.

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

FIG. 4 is a diagram showing a movable body including 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 tester.

[Explanation of symbols]

 3 Roof body (roof model) 26 Forward / backward moving mechanism 29 Pressure tester 30 Left / right moving device 62 Measuring means M Roofing material N Field plate

Claims (1)

[Claims] 1. A roof main body that constitutes a roof model in which a roof material is applied via a ground plate, a pressure tester that is disposed on the roof main body, and applies a predetermined load to the roof material.
A pressure tester moving mechanism that moves this pressure tester in the front-back and left-right directions on the main surface of the roof body at an arbitrary pitch,
In the moving position of each predetermined pitch of the pressure tester, while measuring the amount of flexure of the roofing material and the base plate when a load is applied, it is provided with a measuring means for determining the presence or absence of cracks. A characteristic roof material splitting test device.