JP2023169650A - Scribing device - Google Patents

Abstract

To provide a scribing device which can draw a stable scribing regardless of an inter-layer deformation.SOLUTION: The present invention relates to a scribing device 10 for recording the displacement of a seismic isolation layer 16 provided between an upper structure 12 and a lower structure 14. The scribing device includes: a slide mechanism 18 for sliding a slider in a first direction with respect to the upper structure 12; a scribing needle 22 provided in the slider, the scribing needle being made sharp into the first direction in the seismic isolation 12; and a pair of scribing plates 24 provided in the lower structure 14, the pair of scribing plates being arranged on both sides of the scribing needle 22 across the scribing needle 22 in the first direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a marking device for recording a displacement locus in a seismic isolation layer.

Seismic response analysis of seismic isolated buildings has traditionally been effective in investigating damage to seismically isolated buildings that have been subjected to strong seismic motions. Recording the interstory displacement of the seismic isolation layer by marking is important in confirming the validity of such response analysis (see, for example, Patent Document 1).

FIG. 2 is an example of a conventional marking device for recording interlayer displacement. As shown in this figure, the scribing device 1 includes a scribing board 5 having a vertical scribing line 5a fixed to the upper surface 3a of the lower structure 3 of the base isolation layer 2 (or the lower surface 4a of the upper structure 4). , a bundle material 6 extending vertically from the lower surface 4a of the upper structure 4 (or the upper surface 3a of the lower structure 3), a scoring needle 7 extending horizontally from the bundle material 6 toward the ruled document 5a, and a scoring needle 7. It is provided with a spring 8 that presses and urges the ruled document 5a. According to this scribing device 1, the scribing needle 7 moves along the scribed document 5a to perform scribing during an earthquake, thereby making it possible to record the interlayer displacement in the vertical plane of the seismic isolation layer 2.

Japanese Patent Application Publication No. 2015-068751

However, the conventional scribing device 1 described above has a problem in that the writing pressure of the scribing changes due to interlayer deformation in the normal direction (horizontal direction) of the scribing document 5a, and the thickness of the line of the trajectory is not stable. Furthermore, if there is a large interlayer deformation in the direction away from the scribing needle 7 in the normal direction of the scribed document 5a, there is a fear that the spring 8 will be fully extended and the stylus pressure will be lost, making it impossible to leave a scribed document.

The present invention has been made in view of the above, and an object of the present invention is to provide a marking device that can stably draw markings regardless of interlayer deformation.

In order to solve the above-mentioned problems and achieve the objects, a marking device according to the present invention is a marking device for recording displacement of a seismic isolation layer provided between an upper structure and a lower structure. , a slide mechanism for sliding a slider in one direction with respect to the upper structure or the lower structure; a scoring needle provided on the slider and sharpened in the one direction within the seismic isolation layer; and the lower structure. Alternatively, it is characterized by comprising a pair of scribing plates provided on the upper structure and placed in contact with both sides of the scribing needle with the scribing needle sandwiched in the one direction.

Further, in the above-mentioned invention, the other scribing device according to the present invention is characterized in that the slider mechanism slides the slider in one horizontal direction, and the scribing board has a scribing line formed of a vertical surface. It is characterized by

According to the marking device according to the present invention, the marking device is for recording displacement of a seismic isolation layer provided between an upper structure and a lower structure, a sliding mechanism for sliding the slider in one direction; a scoring needle provided on the slider and pointed in the one direction within the base isolation layer; and a scoring needle provided on the lower structure or the upper structure; and a pair of scribing plates which are placed in contact with both sides of the scribing needle while sandwiching the scribing needle in the one direction, so that it is possible to stably draw a scribing line regardless of the interlayer deformation of the seismic isolation layer. .

Further, according to another scribing device according to the present invention, the slider mechanism slides the slider in one horizontal direction, and the scribing board has a scribing line formed of a vertical surface, so that This has the effect that ruled lines can be drawn stably regardless of interlayer deformation.

FIG. 1 is a diagram showing an embodiment of a marking device according to the present invention, in which (1) is a front sectional view and (2) is a side sectional view. FIG. 2 is a diagram showing an example of a conventional marking device, in which (1) is a front sectional view and (2) is a side sectional view.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, embodiments of a marking device according to the present invention will be described in detail based on the drawings. Note that the present invention is not limited to this embodiment.

As shown in FIG. 1, a marking device 10 according to an embodiment of the present invention is a device for recording displacement of a seismic isolation layer 16 provided between an upper structure 12 and a lower structure 14, It includes a slide mechanism 18, a bundle material 20 (slider), a marking needle 22, and a marking board 24. Both the lower surface 12A of the upper structure 12 and the upper surface 14A of the lower structure 14 are horizontal surfaces.

The slide mechanism 18 is a mechanism for sliding the bundle material 20 in the horizontal X direction (one direction) with respect to the upper structure 12, and is fixed linearly in the X direction along the lower surface 12A of the upper structure 12. A guide rail 26 is provided. The guide rail 26 has a groove 28 with a substantially C-shaped cross section that opens downward, and an engaging part 30 with a T-shaped cross section formed at the upper end of the bundle material 20 is fitted into the groove 28. I'm completely absorbed in it. A plurality of rolling elements (not shown) are arranged in the gap between the inner surface of the groove 28 and the engagement part 30, and the engagement part 30 moves along the extension direction (X direction) of the groove 28. It is free.

The bundle material 20 is provided movably with respect to the guide rail 26 of the slide mechanism 18. This bundle material 20 includes an engaging part 30 (slider) with a T-shaped cross section that engages with the groove 28 of the guide rail 26, and a rod-shaped support part 32 that extends vertically downward (Y direction) from the engaging part 30. has. The support portion 32 supports the scoring needle 22 at its lower end. Reinforcing plates 20A for preventing bending of the bundle material 20 are provided on both sides of the upper side of the support portion 32 in the X direction. The reinforcing plate 20A is not essential and can be omitted. In the example of FIG. 1(1), a right triangular reinforcing plate 20A is provided on both sides of the upper side of the support portion 32 in the X direction, but it may be provided only on one side in the X direction. Further, the shape of the reinforcing plate 20A is not limited to a right triangular shape.

The scoring needle 22 has a needle main body 34 fixed to the lower end of the support part 32 of the bundle material 20, and a scoring needle part 36 that is sharpened on both sides in the X direction from the needle main body 34.

The scribing board 24 is a plate extending vertically upward (Y direction) from the base 38 provided on the upper surface 14A of the lower structure 14, and is made of two sheets spaced apart in the X direction with the scribing needle 22 in the X direction. provided. The ruled board 24 has a ruled document 24A formed of a vertical plane with the X direction as the normal direction. The ruled writing 24A is placed in contact with the needle portions 36 on both sides of the scribing needle 22. The position of the score plate 24 is preferably set so that the contact pressure from the score plate 24 is always applied to the needle portion 36 in contact with the needle portion 36 .

According to the above configuration, the pressure in the X direction received from the two scribing plates 24 during an earthquake becomes the stylus pressure of the scribing needles 22, so the stylus pressure is stabilized regardless of the interlayer deformation of the seismic isolation layer 16 in the X direction. , the locus of the scribing needle 22 becomes stable. Therefore, a line can be stably drawn on the lined document 24A, and a displacement locus can be reliably recorded during an earthquake. Interlayer deformation in the normal direction (X direction) of the ruled document 24A can be absorbed by moving the bundle material 20 along the guide rail 26 of the slide mechanism 18 in the X direction.

When installing the above-mentioned marking device 10 within the existing seismic isolation layer 16, it can be constructed using the following procedure, for example.
First, the guide rail 26 of the slide mechanism 18 is installed on the lower surface 12A of the upper structure 12. Subsequently, the engaging portion 30 of the bundle material 20 is fitted into the groove 28 of the guide rail 26, and the marking needle 22 is installed at the lower end of the support portion 30 of the bundle material 20. The scribing needle 22 is arranged so that the needle portion 36 faces in the X direction. Thereafter, two scribing boards 24 are placed with the scribing needle 22 in between. The scribing plate 24 is arranged at a position where pressure is applied to the scribing needle 22 so that the scribing needle 22 can stably draw a displacement locus. In this way, the above-mentioned marking device 10 can be easily installed within the seismic isolation layer 16.

Note that in the above embodiment, the slide mechanism 18 is installed on the lower surface 12A of the upper structure 12, and the marking board 24 is installed on the upper surface 14A of the lower structure 14. The present invention is not limited to this, but may be configured such that the slide mechanism 18 is installed on the upper surface 14A of the lower structure 14, and the marking board 24 is installed on the lower surface 12A of the upper structure 12. Even in this case, the same effects as described above can be achieved.

As explained above, the marking device according to the present invention is a marking device for recording displacement of a seismic isolation layer provided between an upper structure and a lower structure, a slide mechanism for sliding a slider in one direction with respect to the lower structure; a scoring needle provided on the slider and sharpened in the one direction within the seismic isolation layer; and a pair of scribing plates that are arranged in contact with both sides of the scribing needle with the scribing needle in the one direction, so that the scribing can be stably drawn regardless of the interlayer deformation of the seismic isolation layer. I can do it.

Further, according to another scribing device according to the present invention, the slider mechanism slides the slider in one horizontal direction, and the scribing board has a scribing line formed of a vertical surface, so that It is possible to draw stable lines regardless of interlayer deformation.

As described above, the scribing device according to the present invention is useful as a scribing device for recording displacement trajectories in seismic isolation layers, and is particularly suitable for drawing stable scribing regardless of interlayer deformation.

10 scribing device 12 upper structure 12A lower surface 14 lower structure 14A upper surface 16 seismic isolation layer 18 slide mechanism 20 bundle material 22 scribing needle 24 scribing board 24A scribing document 26 guide rail 28 groove 30 engaging part (slider)
32 Support part 34 Needle body 36 Needle part 38 Base part

Claims (2)

A marking device for recording displacement of a seismic isolation layer provided between a superstructure and a substructure,
a slide mechanism for sliding a slider in one direction with respect to the upper structure or the lower structure; a scoring needle provided on the slider and sharpened in the one direction within the seismic isolation layer; A scribing device comprising: a pair of scribing plates provided on the upper structure and placed in contact with both sides of the scribing needle with the scribing needle sandwiched in the one direction. 2. The scribing device according to claim 1, wherein the slider mechanism slides the slider in one horizontal direction, and the scribing board has a vertical scribing line.

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