JP3314334B2 - Base material detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to, for example, gypsum board,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base material detector used for detecting a base material existing inside a wall or ceiling of a house made of plywood or the like.

[0002]

2. Description of the Related Art Conventionally, as a base material detector of this type, as shown in Japanese Utility Model Publication No. 3-5911, a handle, an insertion needle fixed to the handle and insertable into a detection site such as a wall surface, and the like.
A guide body slidably provided in the handle body in a front-rear direction, having a needle outlet hole through which the insertion needle projects and a contact portion capable of abutting the detection portion at a front end thereof; There is known a structure having an elastic body which urges the insertion needle into the needle outlet hole by urging the insertion needle in the sliding direction.

[0003] Thus, the handle is grasped by hand, and the contact portion of the guide body is brought into contact with a wall surface of a gypsum board or the like as a detection site, and the handle is pushed toward the wall surface while holding the handle. Then, the guide body slides backward into the handle body against the spring member as an elastic body, whereby the insertion needle is exposed and protrudes from the needle outlet hole, and the insertion needle is further pushed by the handle body so that the insertion needle becomes a wall or the like. The insertion needle penetrates a wall or the like in a part where no base material is inserted, and in a part where the base material is present, the insertion needle It pierces the base material and cannot be inserted any more, and you can feel the change in insertion resistance accompanying the insertion of such an insertion needle into the wall etc. by responding, or set the insertion stop position of the insertion needle to the guide body. The base material can be checked visually with the immersion position. The presence or absence in which was to recognize.

[0004]

However, in the case of the above-mentioned conventional structure, a change in insertion resistance caused by insertion of the insertion needle into a wall surface or the like can be felt in response, or the insertion stop position of the insertion needle can be determined by the guide body. It is a detector that only recognizes the presence or absence of the base material by visually checking the immersion position.For example, since the unit price of the wall material depends on the wall thickness, calculation of the estimated cost of indoor renovation, nails, screw nails, When fixing a hanging material such as a heaton to a wall material, there is often a need to know the thickness of the wall material, and the appearance of a simple wall thickness measuring tool is desired.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and the invention according to claim 1 of the present invention comprises a handle, and a handle fixed to the handle. ,
An insertion needle that can be inserted into a detection site such as a wall surface, and a contact that is provided on the handle so as to be slidable back and forth, and that can be brought into contact with the detection site at a needle outlet hole and a front end where the insertion needle protrudes and sinks. A guide body having a contact portion, and an elastic body which urges the guide body in the forward sliding direction to immerse the insertion needle into the needle outlet hole, and inserts the insertion needle into the guide body. A depth scale is provided to indicate the depth , and the handle is locked or unlocked in the circumferential direction.
A switching member is provided in the device so that the reciprocating angle is rotatable .
Release to prevent backward sliding of the guide body by rotating operation
Possible lock mechanism is provided, and the handle and the switch
The limit of the reciprocating angle rotation of the switching member can be regulated between it and the member.
A base material detection tool characterized in that a detainment mechanism is provided .

The invention according to claim 2 is characterized in that the index for the depth scale is the front end face of the guide body. The scale is a wall thickness scale.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 15 show an embodiment of the present invention, in which 1 is a handle, which is made of a synthetic resin in this case. The handle member 2, the guide member 3 in the middle part, and the regulating member 4 in the front part are composed of three mutually detachable members. The handle member 2 and the guide member 3 are screwed together by screwing parts 2a. And
Also, two locking grooves 3b are formed in the guide member 3, two locking claws 4a are formed in the regulating member 4, and the guiding members are elastically engaged with the locking claws 4a in the locking grooves 3a. 3 and the regulating member 4 are connected to each other.

Reference numeral 5 denotes an insertion needle which is made of a metal wire such as stainless steel and has a base portion formed into an L-shaped bent portion 5a and a distal end formed into a sharp portion 5b which can be inserted into a detection site W such as a wall surface. In this case, an insertion hole 6a is formed in the holding member 6 that can be fitted to the step peripheral surface 3c of the guide member 3, and the insertion hole 6a is formed.
The handle 5 is inserted into the handle 5 to form a seat 7 that can be brought into contact with the front end face of the handle 2. The handle 5 and the guide 3 are screwed together so that the bent portion 5a of the Holding member 6 on guide member side
Between the rear end face and the seat plate 7 on the handle member 2 side,
The holding member 6 is separated from the handle member 2 and the guide member 3.
And the insertion needle 5 can be detached and replaced.

Reference numeral 8 denotes a guide body, which is made of synthetic resin, is provided on the handle body 1 so as to be slidable back and forth, and has a needle outlet hole 8a at the center where the insertion needle 5 protrudes and sinks. A deformation prevention cylinder 6d having a fitting hole 6b formed in the holding member 6 and an insertion hole 6c through which the insertion needle 5 can be inserted.
Of the insertion needle 5 by slidingly engaging the deformation preventing cylinder 6d with the deformation preventing hole 8b so that the deformation preventing cylinder 6d is slidably fitted in the guide body 8. At the front end of the guide body 8, a flat surface-like contact portion 8c that can contact the detection portion W is formed at the front end of the guide body 8.

Reference numeral 9 denotes an elastic body, which in this case is formed of a compression spring, and is bridged between the holding member 6 and the rear end face of the guide body 8 so as to urge the guide body 8 in the forward sliding direction. The insertion needle 5 is configured to be immersed in the needle outlet 8a.

Reference numeral 10 denotes a lock mechanism, and the handle 1
And a switching member 11 provided rotatably at a reciprocating angle at a lock position L or a release position F in the circumferential direction, so that the guide member 8 is prevented from sliding backward by rotating the switching member 11. are doing.

In this case, as the lock mechanism 10, four slides are provided on the outer peripheral surface of the rear portion of the guide body 8, the front surface of which is a regulating surface 12 a which can contact the step surface 4 b of the regulating member 4 as the handle 1. Four sliding concave grooves 13 are formed between the moving convex part 12 and the adjacent sliding convex parts 12, and can be fitted into the sliding concave grooves 13 in the guide member 3 as the handle 1. An end face member which forms a guide concave portion 15 which can be fitted to the guide convex portion 14 and the sliding convex portion 12 extending in the front-rear direction, and which is interposed between the opposing surfaces of the guide member 3 and the regulating member 4 in the switching member 11 11a is integrally formed, and a regulating protrusion 16 that can be fitted into the sliding concave groove 13 and a fitting recess 17 that can be fitted into the sliding convex portion 12 are formed on the end face member 11a. The front surface is opposed to the rear surface of the sliding convex portion 11 at the locking position L of the switching member, and the guide body 8 is slid backward. A triangular mark-shaped indicator 4c is formed on the surface of the regulating member 4 as the handle 1 so as to protrude, and a sliding hole 4d through which the guide body 8 is inserted is formed at the front of the regulating member 4. At the rear, an engaging convex portion 4e fitted to the sliding concave groove 13 and a locking concave portion 4f fitted to the sliding convex portion 12 are formed at the rear portion, and the lock position L or the release position is formed on the surface of the switching member 11. F-shaped display units 11b and 11
c is raised along with the letters LOCK and FREE.

In the release position F shown in FIG.
As shown in FIGS. 4, 6, 7, and 8, at the forward position, the sliding concave groove 13 engages with the engaging convex portion 4e formed on the regulating member 4, and the sliding convex portion engages with the locking concave portion 4f. 12 engages, the regulating surface 12a of the sliding convex portion 12 abuts on the step surface 4b, and the sliding groove 13 is opposed to the guiding convex portion 14 and the regulating convex portion 16 and the sliding convex portion is formed. Numeral 12 is opposed to the guide concave portion 15 and the regulating concave portion 17, so that in this release position F, the guide body 8 can slide backward, and when the switching member 11 is turned in the direction of the arrow in FIG. , FIGS. 3 and 5
The blocking surface 16a of the restricting convex portion 16 is opposed to the rear end surface of the sliding convex portion 12 as in the lock position of FIG.
The sliding of the guide member 8 is prevented or canceled by the reciprocating angle rotation operation of the switching member 11.

Reference numeral 18 denotes a detention mechanism. In this case, FIG.
A convex portion 18a is formed at the rear of the inner peripheral surface of the guide body 8, and two long and short concave portions 18b and 1 corresponding to the lock position L or the release position F are formed on the outer peripheral surface of the handle member 2 as the handle body 1.
8b, and a concave portion 18b
The overhanging projections 18c and 18c are formed in the vicinity of 18b, so that at the release position F in FIGS. 6 and 7, the projection 18a fits into the long recess 18b, and the imaginary line in FIGS. In the lock position L indicated by, the convex portion 18a fits in the short concave portion 18b, and the convex portion 18c fits in and out of the concave portions 18b, 18b with the reciprocating angle rotation of the switching member 11. When the switching member 11 is held in the lock position L or the release position F and the rotation operation is started, the protrusion 1
The configuration is such that the resistance of the turning operation of the switching member 11 is given by the 8a getting over the overhanging convex portions 18c.

Reference numeral 19 denotes a depth scale. In this case, FIG.
As described above, the index for the depth scale 19 is the front end face 8d of the guide body 8, and the immersion distance of the tip end of the insertion needle 5 from the front end face 8d of the guide body 8 at the forward position of the guide body 8 is considered. Then, on the outer peripheral surface of the guide body 8, 0, 3 mm, 6 mm, 9 mm, 12 mm, 1 mm
Seven wall thickness scales indicating 5 mm and 18 mm are engraved, and when the guide body 8 is retracted, the position where the front end face 8 d of the guide body 8 matches the depth scale 19 is visually observed.
The projection length of the insertion needle 5 from the front end face 8d and the thickness T of the wall material W
It is configured to read.

Since this embodiment has the above configuration,
In detecting the base material S, as shown in FIGS. 13 and 14, the grip body 1 is gripped by hand, and the abutting portion 8c of the guide body 8 abuts against a wall surface of a gypsum board or the like as the detection site W, and is gripped. Body 1
When the grip body 1 is pressed toward the wall surface or the like while holding the guide member, the guide body 8 slides backward into the grip body 1 against the spring member as the elastic body 9, whereby the insertion needle 5 comes out of the needle. The insertion needle 5 is exposed and protrudes from the hole 8a, and the insertion needle 5 is inserted into a detection site W such as a wall surface by further pressing movement of the gripping body 1. At a site where there is no base material S, as shown in FIG. And so on,
In addition, in a portion where the base material is present, as shown in FIG.
The insertion of the insertion needle 5 into the wall surface or the like is felt in response to the change in insertion resistance, and the insertion stop position of the insertion needle 5 The presence or absence of the base material S is recognized by visually confirming the position of the immersion into the handle body 1, and at this time, a depth scale indicating the insertion depth of the insertion needle 5 on the guide body 8. Because 19 is provided,
For example, as shown in FIG. 15, when the insertion needle 5 pierces the base material S, the thickness T of the wall material can be read, and by knowing the thickness of the wall material, for example, a different wall thickness varies depending on the thickness. You can know the unit price of the material and use it for the estimated cost of indoor renovation to accurately calculate the cost, and you can also know the required length of the hanging material such as nails, screw nails, heaton, etc. Can be used, and the flexibility of use can be increased.

In this case, since the index for the depth scale 19 is the front end face 8d of the guide body 8, the protrusion is obtained by reading the matching position between the depth scale 19 and the front end face 8d of the guide body 8. The length and the thickness T of the wall material W are read, so that the depth scale can be easily read. In this case, since the depth scale 19 is a wall thickness dimension scale, The thickness T of the wall material W can be more easily read.

In this case, the handle 1 is made up of three mutually detachable members, a rear handle member 2, a middle guide member 3 and a front regulating member 4. Is fixed between the handle member 2 and the guide member 3,
By disassembling the handle member 2 and the guide member 3, the insertion needle 5 can be easily replaced by disassembling the handle member 2 and the guide member 3. Alternatively, the switching member 11 is provided at the release position F so as to be rotatable reciprocally, and the releasable lock mechanism 10 that prevents the guide body 8 from sliding backward by rotating the switching member 11 is provided. The reciprocating angle of the switching member 11 allows the guide member 8 to slide back or forth during use or non-use. Even if the guide body 8 is retracted or collides with the outside and the guide body 8 is retracted, the guide mechanism 8 is prevented from sliding backward by the lock mechanism 10, and the insertion needle 5 is exposed and protrudes from the needle outlet hole 8a. To prevent It is possible to improve the safety by avoiding the danger of use, and to perform the locking and releasing operations only by the rotation operation of the switching member 11 in the reciprocating angle in the circumferential direction, thereby improving the detection workability. In this case, the detention mechanism 18 can restrict the reciprocating angle rotation limit of the switching member 11 between the handle 1 and the switching member 11.
Is provided, the switching member 11 for reciprocating rotation operation can be securely held at the lock position L and the release position F, so that unexpected rotation can be prevented and the safety of use can be further improved. .

In this case, the lock mechanism 10 includes a plurality of sliding protrusions 1 having a front surface formed on a rear outer peripheral surface of the guide body 8 as a regulating surface 12a capable of contacting the handle 1.
2 and a sliding groove 13 located between the adjacent sliding protrusions 12, and a guide protrusion 14 extending in the front-rear direction that can be fitted in the sliding groove in the handle 1 and the sliding groove 13. A guide concave portion 15 that can be fitted to the convex portion is formed, and a regulating convex portion 16 that can be fitted to the sliding concave groove 13 and a fitting concave portion 17 that can be fitted to the sliding convex portion 12 are formed on the switching member 11. A sliding hole 4d through which the guide body 8 is inserted is formed in the front part of the regulating member 4, and an engaging convex part 4e and a sliding convex part which fit in the sliding concave groove 13 are formed in the rear part. An engagement recess 4f is formed to fit into the guide member 12, and the front surface of the restriction protrusion 16 is opposed to the rear surface of the slide protrusion 12 at the lock position L of the switching member 11 to prevent the guide body 8 from sliding backward. Since it is formed on the surface 16a, at the release position F, at the forward position, the engagement protrusion 4e formed on the regulating member 4 slides. Groove 13 is a sliding protrusion 12 is engaged with the engagement recesses 4f engaged, and the sliding protrusions 1 on the stepped portion surface 4b
The second regulating surface 12a abuts, and the sliding groove 13 faces the guiding convex portion 14 and the regulating convex portion 16, and the sliding convex portion 12 faces the guiding concave portion 15 and the regulating concave portion 17, so that In this release position F, the guide body 8 can slide backward, and when the switching member 11 is rotated by an angle in the direction of the arrow in FIG. 6, the lock position L in FIGS.
As described above, the blocking surface 16a of the restricting convex portion 16 is opposed to the rear end surface of the sliding convex portion 12, so that the guide body 8 cannot slide backward. The guide member 8 can be prevented or released from retreating and sliding, and the structure of the lock mechanism 10 can be simplified, and the locking and releasing operations can be reliably performed.
Further, in this case, the detention mechanism 18 is composed of the convex portion 18a and the two concave portions 18b, 18b which can be fitted and detached from each other.
The structure of the detention mechanism can be simplified.

It should be noted that the present invention is not limited to the structure shown in the above-described embodiment. For example, the shapes and structures of the handle 1, the seeding member 2, the guide member 3, and the regulating member 4, the guide 8, the lock mechanism 10, the shape of the detention mechanism 18, the depth scale 19, the forming method, the structure, and the like are appropriately changed and designed.

[0021]

As described above, according to the first aspect of the present invention, in detecting the base material, the grip is grasped by hand, and the contact portion of the guide is used as a gypsum as a detection portion. When the handle comes into contact with the wall of a board or the like and pushes the grip toward the wall while holding the grip, the guide slides backward into the grip against the elastic body. The insertion needle protrudes from the exit hole, and the insertion needle is inserted into a detection site such as a wall surface by further pushing of the gripping body.In a region where there is no base material, the insertion needle penetrates the wall surface etc. In a certain part, the insertion needle pierces the base material after penetrating a wall surface or the like as a detection part, and further insertion becomes impossible,
By feeling the change in insertion resistance accompanying the insertion of such an insertion needle into a wall surface or the like in response, or visually checking the insertion stop position of the insertion needle with the position where the guide body is immersed in the handle body, The presence or absence of the base material will be recognized, and at this time, since the guide body has a depth scale indicating the insertion depth of the insertion needle, if the insertion needle pierces the base material, The thickness of the wall material can be read, and by knowing the thickness of the wall material, for example, knowing the unit price of the wall material that varies depending on the thickness and utilizing it for the estimated cost of indoor renovation, and accurately calculating the cost You can also know the required length of the hanging material such as nails, screws, heatons, etc.,
It can also be used for applications as a wall thickness measurement tool, which can increase the flexibility of use , and can be applied to the handle in the circumferential direction.
Switching member for reciprocating angle rotation to lock position or release position
Is provided, and the rotation of the switching member causes the guide body to rotate.
A releasable lock mechanism that prevents backward sliding is provided.
The switching member reciprocating angle rotation operation
Or, when not in use, allow the guide body to slide backward or
It can be prevented, and when not in use,
To move the guide body backwards,
Even if the guide body is going to retreat
The guide body is prevented from retreating and the insertion needle is exposed from the needle outlet.
Can be prevented from protruding, reducing the danger of use.
Avoidance and safety.
Locking and unlocking operations only by rotating the reciprocating angle in the circumferential direction
Operation, and the detection workability can be improved.
And a switching unit between the handle and the switching member.
There is a detention mechanism that can limit the reciprocating angle rotation limit of the material.
Therefore, the switching member for reciprocating rotation operation is locked and unlocked.
Can be securely held in the removal position, and
Movement can be prevented, and the safety of use can be further enhanced.

According to the second aspect of the present invention, since the index for the depth scale is the front end face of the guide body, the matching position between the depth scale and the front end face of the guide body can be read. Accordingly, the projection length and the thickness of the wall material can be read, so that the depth scale can be easily read. In the invention according to the third aspect, the depth scale is a wall thickness. Because of the dimensional scale, the thickness of the wall material can be more easily read.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention.

FIG. 2 is an overall sectional view of an embodiment of the present invention.

FIG. 3 is a partial sectional view of the embodiment of the present invention.

FIG. 4 is a partial sectional view of the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a lock position according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view of a release position according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view of the embodiment of the present invention.

FIG. 8 is a cross-sectional view of the embodiment of the present invention.

FIG. 9 is an exploded perspective view of the embodiment of the present invention.

FIG. 10 is an exploded perspective view of the embodiment of the present invention.

FIG. 11 is an exploded perspective view of the embodiment of the present invention.

FIG. 12 is a partial side view of the embodiment of the present invention.

FIG. 13 is a side sectional view of a use state of the embodiment of the present invention.

FIG. 14 is a side sectional view of a use state of the embodiment of the present invention.

FIG. 15 is a side sectional view of a use state of the embodiment of the present invention.

[Explanation of symbols]

 W Detection site S Base material L Lock position F Release position 1 Handle 2 Handle 3 Guide member 4 Restriction member 5 Insertion needle 8 Guide body 8a Needle outlet 8c Contact portion 8d Front end face 9 Elastic body 10 Lock mechanism 11 Switching Member 18 Detention mechanism 19 Depth scale

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-82293 (JP, A) JP-A-10-96789 (JP, A) JP-A-59-175186 (JP, U) JP-A 47- 11174 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) G01B 5/18

Claims (3)

(57) [Claims] 1. A handle body, an insertion needle fixed to the handle body and capable of being inserted into a detection site such as a wall surface, and provided slidably forward and backward on the handle body, and the insertion needle projects and retracts. A guide body having a needle exit hole and a contact portion at a front end portion capable of contacting the detection portion; and an elasticity for urging the guide body in a forward sliding direction to retract the insertion needle into the needle exit hole. And a depth scale indicating the insertion depth of the insertion needle on the guide body.
Provided in the lock position or release position in the circumferential direction on the handle body
A switching member is provided so as to be rotatable in a reciprocating angle, and the switching member is rotated.
Can be released to prevent backward sliding of the above guide by operation
A lock mechanism, and the handle body and the switching member.
Between the switch member and the reciprocating angle rotation limit of the switching member.
A base material detection tool comprising a retaining mechanism . 2. The base material detecting tool according to claim 1, wherein the index for the depth scale is a front end face of the guide body. 3. A base material detecting tool according to claim 1, wherein said depth scale is a wall thickness scale.