JP3336334B2 - Spacer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer used for temporarily placing concrete products such as concrete panels and U-shaped grooves used on the outer wall of a building.

[0002]

2. Description of the Related Art Utility model registration as a conventional spacer No. 2
Japanese Patent Application Laid-Open No. 577643 proposes a device disclosed in Japanese Patent Application Laid-Open No. 577,463. This spacer is formed by bending a band-shaped member into a wave shape. Further, the radius of curvature of the curved surface forming the convex surface of the outer corner portion of each curved portion is formed smaller than the radius of curvature of the curved surface forming the concave surface of the inner corner portion, and the thickness of each curved portion is the thickness of the subsequent inclined portion. It is set thicker than the thickness. When a plurality of spacers are superimposed on each other, the curved portions are in contact with each other so that no gap is generated.

[0003]

However, in the state where a large number of the above-mentioned spacers are overlapped with each other, and the curved portion is in contact with another object such as a floor, vibration during transportation or impact due to collision of other members is caused. When a load is applied, since the curved portion has an acute angle, stress concentration is generated in the curved portion, which easily causes fatigue, and there is a problem in durability. In order to solve this, measures such as using a material having higher strength or increasing the thickness have been required.

In addition, since the conventional spacer has a curved surface in which the entire curved portion has an arc shape, it is difficult for the operator to hold the spacer by hand, and slipping occurs and the operation is not smoothly performed due to dropping. was there.

Further, the conventional spacer has no means for connecting to other spacers, so that it cannot be used in connection with supporting a large concrete product, and therefore, the dimensional change of the concrete product can be reduced. There was a problem that it could not be stably supported accordingly.

A first object of the present invention is to provide a spacer which can improve durability and can be easily handled. A second object of the present invention is to provide a spacer which can stably support according to a dimensional change of a concrete product, in addition to the second object.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a plurality of inclined portions and a curved portion connecting the respective inclined portions are formed in a wave shape as a whole by a plate member. The gist of the invention is to provide a flat portion in which an outer plane and an inner plane are parallel to each of the curved portions.

According to a second aspect of the present invention, in the first aspect, the plurality of flat portions of the curved portion located on the same side with respect to the waveform are respectively located substantially on the same plane, and located on two different sides with respect to the waveform. The gist is that a plurality of flat portions of the curved portion are parallel to each other.

The invention described in claim 3 is the first or second invention.
In the aspect, the thickness of the flat portion is set to be larger than the thickness of the inclined portion. According to a fourth aspect of the present invention, in the first or second aspect, the thickness of the flat portion is set to be the same as the thickness of the inclined portion.

[0010] The invention described in claim 5 is the invention according to claim 1 or 2.
, The curved surface of the outer corner portion and the curved surface of the inner corner portion at both ends of the flat portion are respectively arcuate surfaces (S3, S4).
The gist is that it is formed in.

According to a sixth aspect of the present invention, in the fifth aspect, the radius of curvature of the arc surface of the outer corner portion is set to be the same as the radius of curvature of the arc surface of the inner corner portion. .

The invention described in claim 7 is the first or second invention.
In the above, the gist is that the spacer has a plurality of longitudinal reinforcing ribs formed at a plurality of positions. According to an eighth aspect of the present invention, in the first or second aspect, the spacer is divided into a plurality of parts, and the spacers are connected by connecting means.

According to a ninth aspect of the present invention, in the ninth aspect, the connecting means is configured to be able to engage with edges of a plurality of adjacent spacers in an uneven relationship, and to hold the engaged state. The gist is that it is provided.

According to a tenth aspect of the present invention, in the ninth aspect, an engaging concave portion is formed at one end of the spacer in a vertical direction, and an engaging groove as a holding portion is formed on an inner surface thereof.
The gist of the invention is that the other end of the spacer is formed with an engagement protrusion which can be fitted into the engagement recess and the engagement groove, and an engagement ridge 11k as a holding portion.

According to an eleventh aspect of the present invention, in the tenth aspect, the engaging concave portion and the engaging convex portion are formed so as to be tapered. According to a twelfth aspect of the present invention, in the ninth aspect, a bulge portion is formed at one end of the spacer in a vertical direction, and an engagement groove is formed at the bulge portion so that the other end of the spacer can be engaged. The gist of the present invention is that the other end of the spacer is formed with a locking projection as a holding portion to be fitted into a locking concave portion as a holding portion formed in the engagement groove.

According to a thirteenth aspect of the present invention, in the ninth aspect, a notched cylindrical bulge is formed at one end of the spacer in a vertical direction, and the bulge is formed at the other end of the spacer. The gist of the present invention is that an engagement groove that allows the portion to be engaged is formed.

According to a fourteenth aspect of the present invention, in the ninth aspect, a bulge is formed at one end of the spacer in a vertical direction, a dovetail groove is formed at the bulge, and the other end of the spacer is formed at the other end of the spacer. The gist of the present invention is that a dove that can be fitted into the dovetail groove is formed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, the spacer 11 is formed of a hard synthetic resin material as a whole in a wavy shape, and has a plurality of substantially flat inclined portions 1.
1a and a plurality of curved portions C connecting the inclined portions 11a. Each curved part C has a flat part 1
1b is formed. Outer plane S2 of this flat part 11b
And the inner plane S1 are formed in parallel with each other.

Outer corner portions 11 at both ends of flat portion 11b
The convex surface of c is formed on an arc surface S3, and the concave surface of the inner corner portion 11d of the flat portion 11b is formed on an arc surface S4.
In this embodiment, the plurality of flat portions 11b of the curved portion C located on the same side with respect to the waveform of the spacer 11 are respectively located on substantially the same plane. Further, the plurality of flat portions 11b of the curved portion C located on two different sides with respect to the waveform are made parallel to each other.

The thickness t1 of the inclined portion 11a is set smaller than the thickness t2 of the flat portion 11b. The radius of curvature r1 of the arc surface S3 and the radius of curvature r2 of the arc surface S4 are set to be the same. A flat through hole 11e is formed in the flat portion 11b in the vertical direction.

As shown in FIG. 2, the slopes 11a at both ends of the spacer 11 are formed shorter than the lengths of the other slopes 11a, and bulges 11f having a large wall thickness are formed at the edges.
Are integrally formed.

The spacers 11 configured as described above are arranged parallel to the ground as shown in FIG.
A concrete product W or the like is placed on the upper surface of the device 1. Since the spacer 11 is formed in a wavy shape, it bears the weight of the concrete product W and stably supports the concrete product W at a predetermined position.

Next, the spacer 11 constructed as described above is used.
The effects are listed together with the configuration. (1) In a non-use state, the spacer 11 is placed in a lying state as shown in FIG. At this time, since the thickness t2 of the flat portion 11b is set to be larger than the thickness t1 of the inclined portion 11a, the outer surface S2 of each flat portion 11b and the inner Plane S1
Are contacted, and the stacking state is stabilized.

(2) In the above embodiment, since the flat portions 11b connecting the inclined portions 11a to each other are provided, in the stacking state of the spacer 11 shown in FIG. 4, an impact load or the like is applied to the upper surface of the spacer 11 by vibration or external force. When applied, the stress concentration on the flat portion 11b is dispersed at two obtuse right and left oblique portions of the flat portion 11b. Therefore, fatigue of the curved portion C (the flat portion 11b) due to local stress concentration can be reduced, and durability can be improved.

(3) In the above embodiment, since the thickness t2 of the flat portion 11b is larger than the thickness t1 of the inclined portion 11a, a gap between the flat portions 11b can be eliminated in the stacking state, and the spacer can be formed. 11 can be stabilized.

(4) In the above embodiment, since the flat portion 11b is provided with the through hole 11e, when the spacer 11 is molded using a synthetic resin material by a molding device, the temperature drop of the thick flat portion 11b occurs. Can be made substantially the same as the inclined portion 11a to suppress the occurrence of sink marks and the like.

(5) In the above-described embodiment, since the flat portion 11b is provided, the operator can easily hold the device with his / her hand, without slipping and dropping, and can perform the handling operation smoothly. Next, another example of the present invention will be described sequentially with reference to FIGS. In each of the following examples, configurations and effects similar to those of the above-described embodiment are omitted.

In another example shown in FIG. 5, the thickness t1 of the inclined portion 11a and the thickness t2 of the flat portion 11b are set to be substantially the same. In this alternative example, a gap is generated between the flat portions 11b in a stacking state. For this reason, rainwater or the like that has entered between the flat portions 11b can be discharged to the outside. Further, the through hole 11e can be omitted. Further, since the contact of the inclined portion 11a is tapered, there is also an advantage that the connection between the stacked spacers 11 is strengthened by the wedge action.

FIG. 6 shows another example in which the reinforcing ribs 11 are provided on the outer surfaces of the inclined portion 11a and the flat portion 11b of the spacer 11.
g is integrally formed in the vertical direction. In this alternative,
The ability to support a vertical load while the concrete product W is placed on the upper surface of the spacer 11 can be increased.

In another example shown in FIG. 7, reinforcing ribs 11g are formed integrally with each other in the vertical direction and offset from each other in the horizontal direction with respect to the outer surface of the flat portion 11b of the spacer 11 shown in FIG. I have. In this alternative example, the material cost can be reduced, and the stacking state of the spacers 11 can be stabilized by eliminating interference between the reinforcing ribs 11g.

Each of the other examples shown in FIGS.
2 shows a configuration of a connecting means for connecting one to another. Another example shown in FIGS. 8 and 9 is to form an engaging recess 11h in the longitudinal direction at the end of one inclined portion 11a of the spacer 11,
A locking groove 11i as a holding portion is formed on the inner wall surface. The other inclined portion 11a of the spacer 11 has an engaging projection 1
1j is formed, and a locking ridge 11k as a holding portion to be engaged with the locking groove 11i is integrally formed at the distal end thereof.
Then, when the engaging projection 11j of the other spacer 11 enters the engaging recess 11h of the one spacer 11 from the lateral direction, the inner side surface of the engaging recess 11h is opened outward by the locking ridge 11k. Then, when the locking projection 11k is engaged with the locking groove 11i, the engagement concave portion 11h is brought into pressure contact with the left and right side surfaces of the engagement projection 11j by the elastic restoring force. . Therefore, the adjacent spacer 1
1 can be connected to each other, and a large concrete product W can be stably supported.

In another example shown in FIG. 10, the engagement recess 11h
And the engaging projection 11j are formed in a tapered shape so that the locking ridge 11k is locally engaged with the locking groove 11i.
The distance D1 between the open ends of the engagement recesses 11h is equal to the engagement protrusions 11j.
Is set to be smaller than the interval D2 of the base end portion. For this reason, both spacers 11 are press-fitted to each other, and the connection state can be stabilized.

In the above example, the locking groove 11i may be a locking hole and the locking ridge 11k may be a locking projection. In another example shown in FIG. 11, a bulging portion 11l is formed at one end of the spacer 11, and an engaging groove 11m is formed therein. The engaging protrusion 11o formed on the other spacer 11 is engaged with the engaging concave portion 11n formed on the inner surface of the engaging groove 11m. In this alternative example, the connection structure of the spacer 11 can be strengthened.

Another example shown in FIG. 12 is one spacer 1
A notched columnar engaging groove 11p is formed in the bulging portion 11l provided in 1 so that a columnar columnar portion 11q provided in the edge of the other spacer 11 is engaged. In this alternative example, since the spacers 11 can be rotatable within a predetermined angle, the attitude of the connected spacers 11 can be changed.

Another example shown in FIG. 13 is one spacer 1
A dovetail groove 11r is formed in one bulged portion 11l, and a dovetail 11s is formed in a bulged portion 11l of the other spacer 11, so as to engage with the dovetail groove 11r from above and below.

Another example shown in FIG. 14 is one spacer 1
An engagement hole 11t is provided at a plurality of locations (only one location is shown) from one side at one edge, and protrudes laterally at an edge of the other spacer 11 to correspond to the engagement hole 11t in a detachable manner. This is provided with an engagement projection 11u.

In another example shown in FIGS. 15 and 16, a connecting jig 12 which is a separate member from the spacer 11 is used. The locking projection 12b formed on the side wall 12a of the connecting jig 12 The engagement protrusions 12b are fitted into the engagement recesses 11v provided in the spacer 11 in the butted state.
Is engaged to connect the spacers 11. When the connecting jig 12 is engaged, the inclined portion 1
A step is formed in the inclined portion 11a so that the upper end surface of the connecting jig 12 is flush with the upper end surface of the connecting jig 12.

In another example shown in FIG. 17, a step 11w is provided at each edge of both spacers 11, a through hole 11x is formed in each step 11w, and a connecting pin 13 or a split pin is formed in each of the through holes 11x. Are connected to each other.

In another example shown in FIG. 18, a step 11w is provided at each edge of both spacers 11, a through hole 11x is formed in one step 11w, and the other step 1 is formed.
1w, a screw hole 11y is formed, and the bolt 14 is connected to the screw hole 11y.
The inclined portions 11a of both spacers are connected by being screwed to y.

Although not shown, the outer corner portion 11c
May be larger than the radius of curvature r2 of the arc surface S4 of the inner corner 11d. Although not shown, the spacer 11 may be formed of a metal material such as hard synthetic rubber, aluminum, or iron instead of the hard synthetic resin material.

[0041]

As described in detail above, the inventions according to the first to fourteenth aspects can improve durability and can be easily handled.

According to a second aspect of the present invention, a plurality of flat portions of the curved portion located on the same side are respectively located on substantially the same plane, and a plurality of flat portions of the curved portions located on two different sides are parallel to each other. Therefore, the spacers can be stabilized in a stacking state.

According to the third aspect of the present invention, the spacer can be more stably supported in the stacking state. In the invention according to claim 4, since the thickness of the flat portion is set to be the same as the thickness of the inclined portion connecting the flat portions, a gap is formed in each flat portion in the stacking state, Therefore, rainwater and the like can be discharged to the outside, and the stacking state can be stabilized by the wedge action between the inclined portions.

According to the fifth aspect of the present invention, since the inner corner portion and the outer corner portion at both ends of the flat portion are formed in arc portions, stress concentration can be reduced. In the invention according to claim 6, since the radius of curvature of the arc portion of the inner corner portion is set to be the same as the radius of curvature of the arc portion of the outer corner portion, the contact state can be stabilized in the stacking state. .

According to the seventh aspect of the present invention, since a plurality of vertical ribs are formed on the spacer, the rigidity of supporting the concrete product can be ensured with a small material. According to the eighth aspect of the present invention, since the spacer is divided into a plurality of parts and the spacers are connected by the connecting means, the length can be adjusted according to the dimensions of the concrete product, and stable support can be performed.

According to the ninth aspect of the present invention, since the connecting means is configured to be able to engage with the edges of the plurality of adjacent spacers in an uneven relationship and has a holding portion for holding the engaged state, the connecting means is provided. Can be held stably.

According to the tenth to fourteenth aspects of the present invention, the structure can be simplified without using a dedicated part for connecting the spacer.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a spacer embodying the present invention.

FIG. 2 is a partially omitted plan view of the spacer.

FIG. 3 is a perspective view showing a use state of a spacer.

FIG. 4 is a front view showing a stacking state of spacers.

FIG. 5 is a partially omitted front view of a stacking state showing another example of the pacer of the present invention.

FIG. 6 is a partial perspective view showing another example of the spacer of the present invention.

FIG. 7 is a partially omitted front view of a stacking state showing another example of the spacer of the present invention.

FIG. 8 is a partially omitted plan view of a spacer showing another example of the present invention.

FIG. 9 is a partial plan view of a connection structure showing another example of the spacer of the present invention before connection.

FIG. 10 is a partial plan view showing a connection structure of spacers before connection.

FIG. 11 is a partial plan view of a connection state showing a connection structure of spacers.

FIG. 12 is a partial plan view of a connection state showing a connection structure of spacers.

FIG. 13 is a partial plan view showing a connection state of a spacer connection structure.

FIG. 14 is a partial plan cross-sectional view of a connection state showing a connection structure of a spacer.

FIG. 15 is a partial plan cross-sectional view of a connection state showing a connection structure of a spacer.

FIG. 16 is a partial perspective view showing a connection structure of the spacer shown in FIG. 15;

FIG. 17 is a partial plan cross-sectional view showing a connection state of a spacer connection structure.

FIG. 18 is a partial plan cross-sectional view showing a connection state of a spacer connection structure.

[Explanation of symbols]

11 spacer, 11a inclined portion, 11b flat portion, 1
1c: outside corner portion, 11d: inside corner portion, 11e ...
Through-hole, 11g ... reinforcement rib, 11h ... engagement recess, 11i
... Lock groove as holding portion, 11j.
Locking ridges as holding parts, 11l ... bulging parts, 11m ...
Engagement groove, 11n: locking recess, 11o: locking projection, 11p
... engagement groove, 11q ... columnar part, 11r ... dovetail groove, 11s ...
Ant, S1: inner plane, S2: outer plane, S3: arc plane, S
4: arc surface, r1: radius of curvature, r2: radius of curvature.

Claims (14)

(57) [Claims] 1. A plurality of inclined portions (11a) made of a plate material and a curved portion (C) connecting the inclined portions (11a) are formed as a whole in a wave shape, and each of the curved portions (C) has an outer plane ( S2) and the flat portion (11) in which the inner plane (S1) is parallel.
A spacer, wherein b) is provided. 2. The curved portion according to claim 1, wherein the plurality of flat portions (11b) of the curved portion (C) located on the same side with respect to the waveform are respectively located on substantially the same plane, and the curved portions located on two different sides with respect to the waveform. The plurality of flat portions (11) of the portion (C)
b) spacers parallel to each other. 3. The flat part (11b) according to claim 1, wherein a thickness dimension (t2) of the flat part (11b) is smaller than that of the inclined part (11).
The spacer set to be larger than the thickness dimension (t1) of a). 4. The flat part (11b) according to claim 1, wherein a thickness dimension (t2) of the flat part (11b) is smaller than that of the inclined part (11).
The spacer set to have the same thickness as the thickness dimension (t1) of a). 5. The curved surface of an outer corner portion (11c) and the curved surface of an inner corner portion (11d) at both ends of the flat portion (11b) according to claim 1 or 2, respectively.
3, spacers formed in S4). 6. The radius of curvature (r1) of the arc surface (S3) of the outer corner portion (11c) is equal to the radius of curvature (r1) of the arc surface (S4) of the inner corner portion (11d).
Spacer set the same as in 2). 7. The spacer according to claim 1, wherein a longitudinal reinforcing rib (11g) is formed at a plurality of positions on the spacer. 8. The spacer according to claim 1, wherein the spacer is divided into a plurality of parts, and each spacer is connected by a connecting means. 9. The spacer according to claim 8, wherein the connecting means is configured to be able to engage with edges of a plurality of adjacent spacers in an uneven relationship, and includes a holding portion for holding the engaged state. 10. The spacer according to claim 9, wherein an engagement recess (11h) is formed at one end of the spacer in a vertical direction, and an engagement groove (11i) as a holding portion is formed at an inner surface thereof. A spacer having, at the other end, an engaging projection (11j) that can be fitted into the engaging recess (11h) and the engaging groove (11i), and an engaging ridge 11k as a holding portion. 11. The spacer according to claim 10, wherein the engaging concave portion (11h) and the engaging convex portion (11j) are formed to be tapered. 12. A spacer according to claim 9, wherein a bulge (11l) is formed at one end of the spacer in the longitudinal direction, and the other end of the spacer is engageable with the bulge (11l). 11m), and the other end of the spacer is provided with a locking recess (1) as a holding portion formed in the engagement groove (11m).
1n) A locking projection (11o) as a holding part to be fitted into
Is formed on the spacer. 13. The spacer according to claim 9, wherein a notched cylindrical bulge (11l) is formed at one end of the spacer in the vertical direction, and the bulge (11l) is a columnar part formed at the other end of the spacer. (11q) can be engaged with the engagement groove (11
A spacer on which p) is formed. 14. The spacer according to claim 9, wherein a bulge (11l) is formed at one end of the spacer in the vertical direction, a dovetail groove (11r) is formed at the bulge (11l), and the other end of the spacer is formed at the other end of the spacer. Is a spacer formed with a dovetail (11s) that can be fitted into the dovetail groove (11r).