JP2000214281A - Precision equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a precision equipment settable without any damage by equipping a shock relaxation member of a shape structure coming into close contact with the substrate surface of the precision equipment while being separated from a fixing member due to a deformation. SOLUTION: A spring 12 for relaxing shock is attached and fixed to a fixing member 11 of the precision equipment 1 with a spring fixing screw 13 and is carried to the upper portion of a through hole 16 of a substrate 2. Then, the equipment 1 is lowered and is placed on the substrate 2 while shock is being relaxed by the spring 12. In this case, the equipment 1 is moved along the surface of the substrate 2 and is positioned opposed to a bolt hole 21 of the substrate 2. In this case, since the equipment 1 is gradually supported while its shock is being relaxed by the spring 12, no shock is applied to the equipment 1. Also, a bolt 15 is screwed into the bolt hole 21, and the fixing member 11 and the substrate 2 are strongly fixed. In this case, the spring 12 that is composed in sectional crank shape is driven and deformed outward in the horizontal direction and is collapsed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precision instrument, and more particularly, to a precision instrument having a shock absorbing member which can be installed without damaging the precision instrument when installing the precision instrument on a member to be measured. .

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIG. When installing a precision instrument 1 such as an earthquake or ground vibration measuring instrument or an attitude measuring instrument on the surface of a solid base 2 such as concrete or iron plate, if it is not a particularly heavy precision instrument 1, it is gripped by both hands. In this state, it is transported to the vicinity of the surface of the base 2 and placed on the surface of the base 2. here,
The weight of the precision instrument 1 exceeds 1 kg, and depending on the shape and structure of the precision instrument 1, the tip of both hands 3 must be turned below the fixing member 11 of the precision instrument 1 to grip the precision instrument 1, In this state, the precision instrument 1 is to be mounted on the surface of the base 2.
Here, referring to FIG. 8B, first, in a state where the precision instrument 1 is supported by one hand 3, a part of the fixing member 11 of the precision instrument 1 is brought into contact with the surface of the base 2 and placed. Place.
Next, one hand 3 supporting the precision instrument 1 is gradually lowered, and when the hand 3 comes into contact with the base 2, this hand is quickly pulled out from below the fixing member 11 of the precision instrument 1, and eventually, The precision instrument 1 is mounted on the surface of the base 2. FIG.
Referring to (c), in this case, the precision instrument 1 falls in the direction of the arrow, and a large impact is applied to the precision instrument 1 from the base 2. Just dropping the precision instrument 1 from a very small height of about several mm to several cm
Since an impact of 00 g to several 1000 g is generated, mechanically fragile components provided in an earthquake, ground vibration measuring device or attitude measuring device may be destroyed.

[0003] Referring to FIG. 8 (d), a cushioning material sheet 4 such as a sponge sheet or a rubber sheet is laid on the surface of a rigid base 2, and the precision equipment 1 is placed and fixed on the cushioning material sheet 4. By doing, precision equipment 1 without breaking
Can be installed on the surface of the solid base 2.

[0004]

However, when the precision equipment 1 is a device that measures by focusing on the vibration and posture transmitted from the installed measuring object member, such as an earthquake, ground vibration measurement device, or posture measurement device. In this case, these precision devices 1 are installed directly on the surface of the rigid base 2 without the interposition of the cushioning sheet 4, from the viewpoint of preventing the transmitted vibration from attenuating or preventing the measured posture from aging. It is desirable to fix. In the end, the precision instrument 1 could only be gently placed on the surface of the rigid base 2 and gently mounted and fixed.

[0005] In addition to the precision equipment 1, a packing material used for transporting an object is a member that effectively absorbs an impact during transportation. However, although the packing material has a configuration effect of absorbing a shock at the time of transportation, it is destined to be removed when an object such as the precision instrument 1 is installed, and this is directly used for installation of the object, It does not have a configuration that can be used for fixing.

According to the present invention, when installing precision instruments such as an earthquake, ground vibration measuring instrument or attitude measuring instrument on a member to be measured, these precision instruments can be installed without damaging them. A precision instrument provided with a relaxation member is provided.

[0007]

Means for Solving the Problems Claim 1: A buffering action is exhibited and the lower surface of the fixing member 11 is separated from the lower surface of the fixing member 11 by deformation so that the lower surface of the fixing member 11 and the surface of the base 2 which is a measurement target member of the precision instrument 1 are formed. A precision instrument including an impact-mitigating member having a shape and structure that allows close contact was constructed. And
Claim 2: In the precision instrument according to claim 1, the impact relaxation member constitutes a precision instrument comprising the impact relaxation spring 12.

Further, in the precision equipment according to the third aspect, the impact mitigation spring 12 constitutes a precision equipment fixed to the fixing member 11 of the precision equipment 1. Further, in the precision device according to any one of claims 2 and 3, the impact reducing spring 1
Reference numeral 2 is a precision device that uses a coil spring 12 ′ having a smaller spring constant than the shock absorbing spring 12.

According to a fifth aspect of the present invention, there is provided a precision device in which the impact-reducing spring 12 is formed integrally with the fixing member 11 of the precision device 1 in advance. Here, claim 6: In the precision instrument according to claim 1, the impact relaxation member constitutes a precision instrument including the impact relaxation body 17 having rubber elasticity.

According to a seventh aspect of the present invention, there is provided a precision instrument in which the shock absorber 17 is positioned and fixed in a fitting concave portion 18 formed on the lower surface of the fixing member 11. did. Claim 8: Claim 7
In the precision equipment described in the above, the number of fitting recesses 18 is 1
Or 4 precision instruments.

Further, claim 9: claims 7 and 8
In the precision instrument described in any one of the above, the fitting concave portion 18 constitutes a precision instrument that partially penetrates the fixing member 11. Here, claim 10: In the precision equipment according to claim 1, the shock absorbing member is formed of a shock absorbing body 17 formed by cutting a flexible material thin plate made of a flexible material into a rectangular shape and bending it. Configured precision equipment.

Claim 11: In the precision instrument according to claim 10, the shock absorbing body 17 is a fitting piece 178 and a hanging piece 177 formed by bending a flexible material thin plate.
And a projection 171 formed on both ends thereof is inserted into the corresponding slit 172 to assemble the fitting pieces 178 into fitting grooves 19 formed on both side walls of the precision instrument 1. A precision instrument fitted to was constructed.

According to a twelfth aspect of the present invention, in the precision equipment according to the tenth and eleventh aspects, the shock absorber 17 is provided.
Is formed into a slender piece by the same flexible material thin plate as the shock absorbing body 17, the engaging pieces 176 are formed at both ends, and the engaging pieces 176 are engaged with the engaging sections 174 formed on the shock absorbing body 17. A precision instrument further comprising a reinforcing member 175 to be combined was constructed.

Further, in the precision instrument according to the present invention, the flexible material thin plate is a precision instrument which is a corrugated cardboard.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the embodiment shown in FIG. Reference numeral 1 denotes a precision device such as an earthquake or ground vibration measuring device or an attitude measuring device. Reference numeral 2 denotes a base, which is a hard member to be measured, such as concrete or an iron plate. The precision instrument 1 is placed on the surface of the base 2 via a fixing member 11 and fixed.

An impact mitigation spring 12 is fixed to a fixing member 11 of the precision instrument 1 by a spring fixing screw 13.
The impact mitigation spring 12 has a crank-shaped cross section. Reference numeral 14 denotes a screw hole into which the spring fixing screw 13 is screwed. In the illustrated embodiment, the shock-mitigating springs 12 are attached and fixed one by one to two opposing sides. The fixing member 11 has through holes 1 at each of its four corners.
6 are formed. Reference numeral 15 denotes a device fixing bolt.

A bolt hole 21 is formed in the base 2 so as to face the through holes 16 formed at the four corners of the fixing member 11. The device fixing bolt 15 is screwed into the bolt hole 21. Here, a method of mounting and fixing the precision instrument 1 on the base 2 via the fixing member 11 will be described. The impact reducing spring 12 is fixed to the fixing member 1 of the precision instrument 1 by a spring fixing screw 13.
Attach it to 1 and fix it. Then, the device fixing bolt 15 is inserted into each of the through holes 16. Fixing member 1
The precision instrument 1 to which the shock absorbing spring 12 is attached and fixed to 1 is gripped by turning the tip of both hands 3 on the lower side of the side of the fixing member 11 where the shock absorbing spring 12 is not attached. It is conveyed above the formed through hole 16. FIG.
(A) shows a state in which the precision instrument 1 has been transported above a through hole 16 formed in the base 2. Here, the precision instrument 1 is lowered in the direction of the arrow, and the impact mitigation spring 12 comes into contact with the surface of the base 2, and the impact of the precision instrument 1 is reduced by the impact mitigation spring 12. When both hands 3 are supported by the base 2 via, the hands 3 are released from the fixing member 11.

Referring to FIG. 1B, this shows a state in which the precision instrument 1 is supported on the base 2 by a shock absorbing spring 12. Here, the precision instrument 1 is moved along the surface of the base 2, and the tip of the equipment fixing bolt 15 inserted into each of the through holes 16 is opposed to the bolt hole 21 formed on the surface of the base 2. I do. As described above, precision equipment 1
Is gradually supported by the base 2 via the shock-mitigating spring 12 while the shock is reduced by the shock-mitigating spring 12, so that no shock itself is generated, and the shock is applied from the base 2 to the precision device 1. It will not be added. Then, when the precision instrument 1 is supported by the base 2 via the shock absorbing spring 12, the hands 3 are released from the fixing member 11, so that
As a result, no impact is applied to the precision equipment 1.

Referring to FIG. 1 (c), the precision instrument 1 is supported on the base 2 by an impact-mitigating spring 12, and the tip of an instrument fixing bolt 15 is formed in a bolt hole formed on the surface of the base 2. It is a figure which expands and shows the place where it opposes to 21. Here, the device fixing bolt 15 is screwed into the bolt hole 21 until the lower surface of the fixing member 11 contacts the surface of the base 2 and is firmly fixed. This screwing is realized by the fact that as the screwing of the device fixing bolt 15 into the bolt hole 21 progresses, the shock absorbing spring 12 having a crank-shaped cross section is driven and deformed outward in the horizontal direction and collapsed.

That is, as described above, in the embodiment shown in FIG. 1, the impact-reducing spring 12 is formed to have a crank-shaped cross section, and generally has one end fixed to the fixing member 11 and one extending from the one end. An intermediate portion protruding downward from the outer peripheral portion of the fixing member 11 and the other end portion formed at the other end of the intermediate portion are formed of a plate-like or linear spring material, and tightening of the device fixing bolt 15 is performed. It has the strength to be deformed.

FIG. 2 shows a modification of the embodiment of FIG. FIG.
In the above, a coil spring 12 ′ having a smaller spring constant than the impact mitigation spring 12 is used together with the spring fixing screw 13.
When fixing the impact reducing spring 12 to the fixing member 11 with the spring fixing screw 13, the coil spring 12 ′ is inserted into the spring fixing screw 13 to fix the impact reducing spring 12. By providing the coil spring 12 ′, the elasticity of both the coil spring 12 ′ and the shock mitigation spring 12 is adjusted to expand the degree of freedom of setting the elasticity of the shock mitigation spring 12, thereby facilitating the design. ing. The precision device 1 having a relatively small weight is formed by the coil spring 12 '.
Can be secured also by a relatively small elasticity. FIG. 2B shows a state before the impact relaxation spring 12 starts to be deformed after the fixing member 11 starts to descend.

FIG. 3 also shows a modification of the embodiment of FIG. FIG.
FIG. 3A is a view of the impact relaxation spring 12 viewed from above, and FIG. 3B is a cross-sectional view of FIG. This modified example is an example in which the shock absorbing spring 12 is formed integrally with the fixing member 11 of the precision device 1 in advance. Although the setting of the elasticity of the shock absorbing spring 12 cannot be adjusted, the work of fixing the precision instrument 1 to the base 2 can be facilitated.

The above-described shock-absorbing spring 12 is more generally an embodiment of an impact-absorbing member that exhibits a buffering action and is separated from the lower surface of the fixed member 11 by deformation. In this case, the lower surface of the fixing member 11 and the surface of the base 2 which is a member to be measured of the precision instrument 1 have a shape and a structure that allow the surface to adhere to each other. Another embodiment will be described with reference to FIG. In FIG. 4, a fitting recess 1 formed of a step or a groove is formed on a lower surface of a fixing member 11 of the precision instrument 1.
8 is formed. It is assumed that the number of fitting recesses 18 to be formed is about one to four. In the fitting concave portion 18, an impact-reducing body 17, which is an impact-reducing member having rubber elasticity, indicated by 17, is positioned and fixed by an adhesive or other fixing members. The shock absorber 17 is made of a material such as rubber or high-density sponge. Referring to FIG. 4D,
The hardness of the shock absorber 17 has a buffering effect when the precision device 1 is mounted on the base 2, and the fixing member 11 of the precision device 1
When being fixed to the base 2 by the device fixing bolts 15, it is crushed and compressed and accommodated in the fitting concave portion 18, and the lower surface of the fixing member 11 and the surface of the base 2 are in close contact with each other and interposed therebetween. Not set to elastic. This elasticity is set in consideration of the weight of the precision instrument 1 and the tightening strength of the instrument fixing bolt 15.

Referring to FIG. 5, this is a modification of the embodiment of FIG. That is, the fitting recess 18 partially passes through the fixing member 11. After the precision instrument 1 is fixed to the base 2, the shock absorber 17 is pulled out from the fitting recess 18 and removed as necessary. Another embodiment will be described with reference to FIG. In FIG. 6, a shock absorbing member 17 is constituted by a flexible material thin plate made of a flexible material such as a cardboard for packing the precision equipment 1 as an impact absorbing member. Referring to FIG. 6B, the shock absorber 17 of this embodiment is formed by cutting a flexible material thin plate made of a flexible material such as corrugated cardboard into an elongated rectangular shape, and bending this. A dotted line indicates a place where a mountain fold is made, and a solid line indicates a place where a valley fold is made. The shock absorber 17 is assembled by inserting the protruding pieces 171 formed at both ends into the corresponding slits 172 on the result obtained by folding and bending a thin sheet of flexible material. FIG. 6C shows a cross section of the assembled shock absorber 17. 17
Reference numeral 3 denotes an impact relaxation portion formed by bending a flexible material thin plate, and includes a hanging piece 177 and a fitting piece 178. The length of the hanging piece 177 is designed to protrude below the lower surface of the fixing member 11 of the precision device 1. The shock absorbing portions 173 are fitted into fitting grooves 19 formed on both side walls of the precision instrument 1.
Are fitted and fixed to the precision equipment 1. The shock absorbing portion 173 constitutes a part of the packaging material of the precision device 1 in a state where it is fixed to the precision device 1.

Here, when the precision device 1 is to be mounted on the base 2 while supporting the shock absorber 17 fixed to the precision device 1, the impact mitigation is performed before the fixing member 11 comes into contact with the base 2. The hanging piece 177 of the portion 173 comes into contact with the base 2 to reduce the impact on the precision device 1, so that the precision device 1 can be installed on the base 2. Fixing member 11 of precision equipment 1
Is fixed to the base 2 with the device fixing bolts 15, the shock absorbing portion 173 gradually collapses,
The lower surface of the fixing member 11 and the surface of the base 2 are in close contact with each other and do not intervene therebetween.

FIG. 7 is a diagram showing a modification of the embodiment of FIG. This modification further includes a reinforcing member 175 for maintaining the shape of the shock absorber 17 assembled in the embodiment of FIG. The reinforcing member 175 is formed into a slender piece by the same flexible material thin plate as the shock absorbing body 17, and engagement pieces 176 are formed at both ends. The engagement piece 176 is the shock absorber 1
7 and engage with the engaging portion 174 to reinforce. By providing the reinforcing member 175, the assembled shape of the precision instrument 1 can be stably held.

[0027]

As described above, according to the present invention, the lower surface of the fixed member is separated from the lower surface of the fixed member by a deformation while exhibiting a buffering action, and the base of the base, which is a member to be measured of the precision instrument, is moved. By equipping precision equipment with shock-absorbing members having a shape structure that allows the surfaces to adhere to each other, when installing precision equipment such as earthquake, ground vibration measurement equipment or attitude measurement equipment on the measurement target member, Can be installed without damage.

[Brief description of the drawings]

FIG. 1 illustrates an embodiment.

FIG. 2 is a view for explaining a modification of the embodiment of FIG. 1;

FIG. 3 is a view for explaining another modification of the embodiment of FIG. 1;

FIG. 4 is a diagram illustrating another embodiment.

FIG. 5 is a view for explaining a modification of the embodiment of FIG. 4;

FIG. 6 is a view for explaining still another embodiment.

FIG. 7 is a view for explaining a modification of the embodiment of FIG. 6;

FIG. 8 is a diagram illustrating a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Precision equipment 11 Fixing member 12 Impact relaxation spring 2 Base

Claims (13)

[Claims] An impact mitigation having a shape and structure that exhibits a buffering action and is separated from the lower surface of the fixing member by deformation to allow the lower surface of the fixing member to closely adhere to the surface of a base as a measurement target member of precision equipment. A precision instrument comprising a member. 2. The precision device according to claim 1, wherein the shock absorbing member comprises a shock absorbing spring. 3. The precision equipment according to claim 2, wherein the impact-reducing spring is fixed to a fixing member of the precision equipment. 4. The precision device according to claim 2, wherein the impact-reducing spring uses a coil spring having a smaller spring constant than the impact-reducing spring. Precision equipment characterized by: 5. The precision device according to claim 2, wherein the shock absorbing spring is formed integrally with a fixing member of the precision device in advance. 6. The precision instrument according to claim 1, wherein the impact-reducing member is made of an impact-reducing body having rubber elasticity. 7. The precision instrument according to claim 6, wherein the shock absorbing body is positioned and fixed in a fitting recess formed on a lower surface of the fixing member. 8. The precision equipment according to claim 7, wherein the number of fitting recesses is one to four. 9. The precision instrument according to claim 7, wherein the fitting recess penetrates a part of the fixing member. 10. The precision device according to claim 1, wherein the shock-absorbing member is made of a shock-absorbing body formed by cutting a flexible material thin plate made of a flexible material into a rectangular shape and bending it. And precision equipment. 11. The precision device according to claim 10, wherein the shock absorbing body has an impact reducing portion including a fitting piece and a hanging piece formed by bending a flexible material thin plate, and is formed at both ends. Assembling by inserting the projection into the corresponding slit,
A precision device characterized in that fitting pieces are fitted into fitting grooves formed on both side walls of the precision device. 12. The precision device according to claim 10, wherein the shock absorber is formed of a thin plate made of the same flexible material as the shock absorber, and engagement pieces are formed at both ends. A precision device, further comprising a reinforcing member for engaging the engaging piece with an engaging portion formed on the shock absorber. 13. The precision instrument according to claim 10, wherein the flexible material thin plate is a cardboard.