JPS60102539A - Method of inspecting load resistance of floor plate for stand and device for executing said inspection method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for testing the load-bearing capacity of a floor board, such as a plank or a wooden frame board, of a frame, and a method for testing a board for carrying out this testing method. Regarding equipment.

Generally, the bottom plates of frames that are used for many years are significantly affected by the weather. Therefore, even ignoring the wear and tear caused by rough use during construction work, an additional deterioration of the quality of the aqueous phase occurs, both of which lead to a gradual reduction in the supporting capacity of the slab. Therefore, with regard to the unconditionally required safety in frame structures, it is necessary to check from time to time whether the load-bearing capacity of this deck is still sufficient to meet the requirements, preferably the regulations, so long as the deck is at least made of wood. Presents a method that can carry out the required and at the same time makes it possible to carry out this method at less cost in an inspection method for testing the load-bearing capacity of floor boards such as wooden frame boards supported at both ends. A pressure beam is placed on the horizontal solid axis of the slab to be inspected, and a force that increases over time is applied to this pressure beam via a compression spring using a manually operated lever. The floor plate is elastically deformed by this side, and the value of this side and the overnight stay are
It was solved by sequentially reading together the respective values of the deflections caused by the elastic deformations.

The implementation of this method and its mode of operation will be described below in connection with the testing device defined for this purpose.

In an inspection device for carrying out the inspection method of the present invention, a frame supported by legs and arranged horizontally is provided to receive a floor plate to be inspected, and a frame is provided at the center side of the frame. A superstructure is arranged, and the upper end of the superstructure is pivotally mounted, and the reins are placed in the casing via a vertically guided press rod. It is configured such that it is connected to the compression spring or to the piston of the hydraulic pressure cylinder, and that the spring casing or the pressure cylinder is provided with a pressure beam extending at right angles to the longitudinal direction of the frame.

In order to carry out this inspection method, it is of course necessary to continuously monitor both the amount of deflection and the value of the pressure acting on the bottom plate during the inspection process.

For this reason, the shrine is equipped with two display devices.

One display device starts from the horizontal and flat normal position of the floor plate and directly displays the deviation from this normal position, i.e. the deflection at each point in the inspection process, by means of an angle ray 8-, while the other display device shows the compression Either by changing the length of the spring or, in the case of a hydraulic transmission device, by means of an indicator, the respective pressure transmitted to the floor plate is indicated.

In order to be able to insert floor plates of different sizes into the testing device, the frame is provided with two adjustable support strips arranged at right angles to the longitudinal direction of the frame. These support strips are either supported on the longitudinal beams of the frame via a clamping device or, if this testing device is used exclusively in a given mounting system, cooperating with standardized elements. Replaced by a notch in the beam. The support strip itself may be formed, for example, from a flat or chevron-shaped strip into which a single plank is inserted for hanging the frame plate with pawls. By using the adjustable lateral limits, the bottom plate can always be arranged symmetrically with respect to the central longitudinal axis of the frame in the case of different widths of the bottom plate.

In the drawings of the embodiment, a pedestal is indicated by the reference numeral 1, and this pedestal 1 is as follows:
It consists of a longitudinal beam 11 and a horizontal beam 12, and has a leg section 13.
It has a horizontally disposed V-frame supported by. A bottom plate to be inspected, for example frame plate 3, is inserted into this frame. An upper structure 14 is disposed vertically on the side of the center in the longitudinal direction of the pedestal 1. The upper structure 14 has at its upper end a projecting member 15 which projects horizontally and above the center of the frame 11/12. This superstructure 14 is preferably reinforced by support struts 14'. A lever 17 extending in the longitudinal direction of the frame 11/12 above the mount is attached to the overhang part '4A15 via the support part 16, and is connected upwardly and downwardly within a vertical plane passing through the vertical solid axis of the frame 11/12. It is fixed so that it can be rotated towards. The length of this lever 17 is chosen in such a way that the free end of the lever projects beyond the end of the frame 11/12 and that the lever can be pivoted without difficulty by an operator standing there. ing. The shape of the reno ζ device 18 serving for direction change and linear guidance is already known, and the reno ζ 17 is pivoted on a vertical push rod 23 . This push rod 23 is moved upwards and downwards by the pivoting movement of the lever 17.

This pressure rod 23 is a component of the pressure transmission device 2. This pressure transmission device 2 is fixed to a support 14 provided on the superstructure 14 and consists essentially of a strong compression spring 22 . This compression spring 22 is arranged inside the casing 21, and its upper end is on the lower end surface of the pressing rod 23, and its lower end is on the bottom surface '21' of the casing 21.
is supported by The lower end of the casing 21 is extended downward and is formed to provide a chamber 21a that opens downward. This chamber 21a serves to mount a device for transmitting pressure indications. A pressure beam 25, which acts on the floor plate to be inspected, is fixedly connected to the lower surface of this chamber 21a.

In order to indicate the respective pressure acting on the frame plate 3, a central hole 21 is provided in the illustrated embodiment in the lower base 21' of the housing 21, that is, in the downwardly extending end of the housing 21. A compression spring 22 configured as a helical spring is provided in this central hole 21.
A compression spring 724 disposed coaxially with respect to the compression spring 22 is inserted therein. The upper end of this suppressing pin 24 is connected to the lower end surface of the pressing rod 23, and the lower end thereof operates the pointer 26. This pointer 26 is chamber 2
1a is rotatably supported on a shaft 27 and projects at its free end through an outwardly extending notch 21b, indicating on a scale 29 the value of the pressure acting on the frame plate 3. . A return spring 28 is provided opposite the point of action of the pressing pin 24 on the pointer 26. This return spring 28 is supported on the pressure beam 25.

Naturally, any other display device can also be chosen instead of this purely mechanical display device. For example, the chamber 21 between the lower end face of the pressure transmission device 2 and the pressure beam 25
It is also possible to eliminate & and provide a hydraulic stylus pressure stick connected to the indicator side.

In order to receive the frame plate to be inspected,
11/12 will be useful. If it is a single plank, the length of which is generally not standardized, a plurality of chevron strips are provided as support members for the ends. It can be kept at ℃.

These chevron strips are spaced appropriately from each other and are tightened by means of a device (e.g. frame coupling device) on the frame l 1/l
It is fixed to the longitudinal beam 11 symmetrically with respect to the transverse solid axis of 2, on the horizontally extending leg of which the end of the plank rests.

Generally speaking, however, most floor plates of sized and standardized mounting systems will be tested using the method of the present invention. The longitudinal beams 11 are preferably provided with notches, projections or other receiving devices for attaching support strips to the mounting arrangement, the different longitudinal dimensions LL, L,
2, L3, and L4, and are arranged symmetrically with respect to the transverse solid axis. For example, a supporting strip 32 made of smooth material serves to insert the V-frame plate 3. This support strip 32 is inserted into a cutout in the U-shaped longitudinal beam 11, on which the claw 31 of the Vf frame plate 3 is hooked.

In order to display the deflection of the frame plate 3, the detection rail: -
33 is useful. This detection lever 33 is connected to the frame 1
The frame plate is pivotably supported in lateral bearings 34 arranged at 1/12 and is angled upwardly with its free end 33' serving as a detection mechanism. It is brought into contact with the underside of this frame plate 3 opposite the pressure beam 25 on the central longitudinal axis of the frame plate 3 .

A pointer 35, fixedly connected to the detection lever 33 and pointing upward at a right angle, directly indicates the amount of deflection of the frame plate 3 on a scale.

Adjustable lateral limit phases 38 are provided for mounting arrangements with frame plates of different widths. These lateral limits 38 are arranged so that the individual frame plates, depending on their width, are located above and relative to the longitudinal solid axis of the cuff 11/12. It is designed to be inserted into the inspection device in a parallel state. This lateral restriction month 38 moves at right angles to the longitudinal direction of the pivotable chevron strip or frame.
It may also consist of a functional zoV-').

In order to carry out the inspection method, the frame plate 3 to be inspected must be a frame 11/1 in the form that is clear from the above description.
2, the pressure beam 25 is placed on it, and the lever 1
7 is slowly turned downward in the direction of the arrow by the worker. As a result, the pressure rod 23 is guided downward via the lever device 18 and presses the spiral compression spring 22 together, so that the pressure corresponding to the axial contraction of the compression spring 22 is applied to the frame plate. It will be extended to 3. This respective value is displayed continuously by the pointer 26. The frame plate 3 is deflected due to the pressure acting on it. This amount of deflection can be read directly via the detection lever-surface water device 33'/33/34/35. For example, the maximum permissible pressure and deflection values can be indicated by red marks on a scale used for this reading, making it easy to check whether the lining still complies with the safety conditions.

[Brief explanation of the drawing]

FIG. 1 is a side view of the inspection device according to the present invention, and FIG.
The figure is a view of the inspection device shown in FIG. 1 seen from the direction of arrow a, and FIG. 3 is an enlarged cross-sectional view of the pressure transmission device. 1. Frame, 2. Pressure transmission device, 3. Humidity plate, 11. Vertical beam, 12. Horizontal beam, 11/12.
Flare l1.13...Leg, 14...Upper structure, 1
4'... Support part, 14"... Support body, 15... Overhang part, 16... Support part part, 17... Reno ζ-11 side, 21"... 1 mouth, 21a. ...Chamber, 21b...Notch, 22...Compression spring, 23...Press rod, 24...
・Press pin, 25...Pressure beam, 26...Finger hook, 2
7... Axis, 28... Return spring, 29... Scale,
31... Pawl, 32... Support strip, 33... Detection ζ-133'... Free end, 34... Support member,
35...Finger hook, 33'/3.3/34/35...Detection lever-display device, /8...Side restriction part removed, b...
Arrow, Ll, L2. L3, L4... Vertical dimension

Claims (1)

[Claims] 1. In an inspection method for inspecting the load-bearing capacity of a floor plate such as a thick board or a wooden frame board of a frame, the horizontal center of the floor plate to be inspected is supported at both ends. A pressure beam (25) is placed along the real axis, and a manually operated lever (17) is used to exert a time-increasing force on this pressure beam (25) via a compression spring (22), and this force is 14 Loadability of the bottom plate of a frame, characterized in that the value of this force and the respective value of the deflection caused by the elastic deformation of the bottom plate are read together in sequence. How to test for. 2. An inspection device for carrying out an inspection method for inspecting the loadability of a bottom board such as a thick board or a wooden frame board of a trestle, which is supported by legs (13), and A horizontally arranged frame (11/12) is provided to receive the bottom plate to be inspected, and an upper structure (14°) is arranged at the center side of the frame (11/12). A lever (17) is pivotally attached to the upper end of the upper structure (14), and the lever (17) is operated via a vertically guided press rod (23). is connected to a compression spring (22) arranged in the casing (21) or to the piston of a hydraulic pressure cylinder, to which the frame (11/12) is connected. An inspection device for testing the load-bearing capacity of a bottom plate of a pedestal, characterized in that it is provided with a pressure beam (25) extending at right angles to the longitudinal direction of the frame. 3. A pressure transmission device (2) consisting of a spiral compression spring (22) is provided, and the compression spring (22) is arranged in the casing (21), and the compression spring (22)
The upper end is fully supported by the lower end surface of the press rod (23) that extends into the casing (21) so as to be movable in the longitudinal direction from above, and the lower end is supported by the bottom surface ( 21') and the casing (21)
A pressure beam (25) is attached to the lower end of the frame (11/1
2) The inspection device according to claim 2, item 8C, which is fixedly connected at right angles to the longitudinal direction. A pressure beam (25) is provided at the lower end of this chamber (21a), and a pressure beam (25) is installed at the lower end of this chamber (21a). , in the opening (21'') provided in the casing bottom, i.e. in the extended lower end part of the casing (21), there is a compression spring (22) disposed coaxially therewith and a pressing screw ( 2
4) are in penetrating engagement, and this Ijll iL, the bottle (
24) The upper end of the press rod (23) is connected to the lower end surface of the pressure rod (23), and the lower end thereof is a VC so as to act on a pointer (26), and this pointer (26) is connected to the bottom of the casing. The pointer (2
6) has a notch (21b) extending outward.
4. The inspection device according to claim 3, which extends through the notch (21b) and projects from the notch (21b). 5. A hydraulic lateral pressure dax is disposed between the pressure transmission device (2) and the pressure beam (25), and an indicator is connected to the stylus pressure dax. Inspection device according to item 2. 6. Detection V-bar (33) rotatably supported on the side support members provided on the frame (11/12)
The detection mechanism (33') engages the lower surface of the bottom plate on the side opposite to the pick pressure beam (25), detects this, and the pointer (35) is immovably connected to 6 (33). The inspection device according to claim 2, wherein: