JP2016079693A - Building block connecting structure and connecting pin for building block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building block connecting structure in which a connecting pin can be easily inserted into a pin penetrating hole on a joint plate and a joint plate holding power of the connecting pin is strengthened.SOLUTION: In a building block connecting structure according to this invention, a joint plate 2 is placed between building blocks and pin engaging holes 15 are formed on opposed end faces of building blocks 11,12 at a position corresponding to pin penetrating holes 21 on the joint plate 2. A penetrating installation part 31 corresponding to the pin penetrating hole 21 is formed at an intermediate part. The penetrating installation part 31 on the connecting pin 3 with taper parts 35,36 on its both end parts is inserted in the pin penetrating hole 21 and the taper parts 35,36 are engaged in the pin engaging holes 15 of both building blocks 11,12. Concavities 4 are formed on an outer peripheral surface of the penetrating installation part 31 on the connecting pin 3 and a part 20 of a peripheral part of the pin penetrating hole on the joint plate 2 is stored in the concavity 4.SELECTED DRAWING: Figure 6B

Description

  The present invention relates to a building block connecting structure and a building block connecting pin applied when connecting a boundary building block between a sidewalk and a roadway of a paved road, a median building block, or the like.

  The boundary building blocks are constructed in series at the boundary between the roadway and the sidewalk of the paved road, but as shown in the following Patent Document 1, adjacent building blocks are connected via joint plates and connecting pins. Are well known.

  As shown in FIGS. 8 and 9, the joint block connecting structure shown in this document has a joint plate 91 interposed between adjacent building blocks 9,9. Pin through-holes 92 are formed at the four corners of the joint plate 91, and an intermediate portion of the connecting pin 95 is disposed in a penetrating state between two appropriate pin through-holes 92. Both end portions of the connecting pin 95 are inserted into the pin insertion holes 90 and 90 formed respectively. Thereby, the adjacent building blocks 9 and 9 are connected via the joint plate 91 and the connecting pin 95.

  The construction procedure in such a conventional construction block connection structure is as follows.As shown in FIG. 9, the joint plate 91 is applied to the end face of the construction block (existing construction block) 9 previously installed using one hand, In this state, the joint plate 91 is held, the other hand holds the connection pin 95, and the connection pin 95 is inserted into the pin through hole 92 of the joint plate 91 and the pin insertion hole 90 of the existing building block 9. . Further, the same operation is performed, and the connecting pins 95 are inserted into the appropriate two pin through holes 92 in the joint plate 91 and are inserted into the pin insertion holes 90, whereby the joint plate 91 is connected to the two connecting pins 95. To the end face of the existing building block 9.

  Thereafter, the construction block (next construction block) 9 to be constructed next is suspended by a crane or the like and moved in a substantially horizontal state, and is placed at a predetermined position in the vicinity of the existing construction block 9 and suspended. Next, while lifting or hanging the next building block 9, adjust the height of the top of the next building block 9 with the spread mortar and continue with a series of water threads that serve as a reference for the top level. The top level of the building block 9 is confirmed. After the confirmation, the insertion hole 90 provided on the opposite end face of the next building block 9 is fitted into the connecting pin 95 attached to the existing building block 9. As a result, the connecting operation of both building blocks 9 and 9 is completed, and a connecting structure is formed.

Japanese Patent No. 3106149

  By the way, in the connecting operation of the building block, when the connecting pin 95 is inserted into the existing building block 9, ideally, the shaft core X1 of the connecting pin 95 is passed through the pin of the joint plate 91 as shown in FIG. By inserting the connecting pin 95 into the pin through hole 92 in such a state so as to coincide with the axis X2 of the hole 92, the inserting operation of the connecting pin 95 can be performed efficiently and smoothly.

  However, since the existing building block 9 has a low height and is laid on the road surface, the insertion position of the connection pin 95 is very low, and the operator inserts the connection pin 95 in a strict posture at the middle waist. There is a need to do. Therefore, in reality, as shown in FIG. 10A, the axial center X1 of the connecting pin 95 is displaced up and down or left and right (center misalignment) with respect to the axial center X2 of the pin through hole 92, and remains displaced. In this state, the connecting pin 95 is inserted into the pin through hole 92. Then, as shown in FIG. 10B, a part of the outer peripheral surface of the connecting pin 95 interferes with the pin through hole peripheral portion of the joint plate 91, and the pin through hole peripheral portion of the joint plate 91 is temporarily compressed and deformed. Since the repulsive force due to the temporary compression deformation acts as a resistance to the insertion operation of the connecting pin 95, there is a problem that the connecting pin 95 cannot be easily inserted into the pin through hole 92 of the joint plate 91.

  The present invention has been made in view of the above-described problems, and can be used to easily insert a connecting pin into a pin through hole of a joint plate, and to increase the holding force of the joint plate by the connecting pin. And it aims at providing the connecting pin for building blocks.

  In order to solve the above problems, the present invention comprises the following means.

[1] A joint plate is interposed between adjacent building blocks, and pin insertion holes are respectively formed on opposite end surfaces of the adjacent building blocks corresponding to the pin through holes formed in the joint plate, while the intermediate portion The through mounting portion in the connecting pin in which the through mounting portion is formed corresponding to the pin through hole and the taper portion whose outer diameter decreases toward both ends in both end portions penetrates the pin through hole. And a construction block connecting structure in which the tapered portion is inserted into a pin insertion hole of the adjacent building block,
A recess is formed on the outer peripheral surface of the through-mounting portion in the connecting pin,
Part of the peripheral edge of the pin through hole of the joint plate is housed in the recess.

  [2] The building block connection structure according to item 1, wherein a plurality of the recesses are formed at intervals in the circumferential direction.

[3] A connecting pin for a building block used when connecting adjacent building blocks with a joint plate interposed therebetween,
A through-mounting part is formed in the intermediate part, and a tapered part whose outer diameter decreases toward both ends at both end parts,
The through mounting portion is arranged corresponding to the pin through hole formed in the joint plate, and is configured to be able to pass through the pin through hole.
The tapered portion is configured to be able to be inserted into the insertion holes respectively formed in the opposing end surfaces of the adjacent building blocks,
A connecting pin for a building block, wherein a concave portion is formed on an outer peripheral surface of the through-mounting portion.

  According to the connecting structure of the building block of the invention [1], since the concave portion is formed on the outer peripheral surface of the connecting pin arranged through the pin through hole of the joint plate, the connecting pin is inserted into the pin through hole of the joint plate. In this case, even if the outer peripheral surface of the connecting pin tries to interfere with the inner peripheral portion of the pin through hole of the joint plate, a part (interference portion) of the inner peripheral portion of the pin through hole of the joint plate is accommodated in the recess. This reduces the amount of deformation of the inner edge of the pin through hole. For this reason, the repulsive force of the deformed portion, that is, the resistance force to the connecting pin insertion work is reduced, and the connecting pin can be inserted easily.

  In addition, in a state where the connecting pin is inserted into the pin through hole 21 of the joint plate, a part of the peripheral edge of the pin through hole of the joint plate 2 is accommodated in the connecting pin 3 to be engaged. Increases the holding power of the joint plate.

  According to the construction block connection structure of the invention [2], a plurality of the concave portions are formed at intervals in the circumferential direction, so that the above-described effect can be obtained more reliably.

  According to the building block connecting pin of the invention [3], the connecting pin can be easily inserted in the same manner as described above, and the holding force of the joint plate by the connecting pin can be increased.

FIG. 1 is a perspective view showing a connecting structure of building blocks according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the connecting structure of the building blocks of the embodiment. FIG. 3 is an enlarged cross-sectional view showing the periphery of the connection pin in the connection structure of the building blocks of the embodiment. FIG. 4 is a perspective view showing a connecting pin applied to the embodiment. FIG. 5A is a side view showing the connecting pin of the embodiment. FIG. 5B is a cross-sectional view of the through mounting portion in the connecting pin of the embodiment. FIG. 6A is a cross-sectional view showing a state immediately before the connection pin is inserted into the joint plate in the embodiment. FIG. 6B is a cross-sectional view showing a state in the middle of inserting the connecting pin into the joint plate in the embodiment. FIG. 7 is a cross-sectional view of a through-mounting portion in a connecting pin as a modification of the present invention. FIG. 8 is an enlarged cross-sectional view of the periphery of a connecting pin in a conventional connecting structure of building blocks. FIG. 9 is a cross-sectional view for explaining a construction procedure in a conventional construction block connecting structure. FIG. 10A is a cross-sectional view showing a state immediately before the connecting pin is inserted into the joint plate in the conventional example. FIG. 10B is a cross-sectional view showing a state in the middle of inserting the connecting pin into the joint plate in the conventional example.

  FIG. 1 is a perspective view showing a connecting structure of building blocks according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the connecting structure.

  As shown in both drawings, the construction structure of the building blocks of this embodiment is a structure used when connecting the boundary construction blocks constructed at the boundary between the sidewalk and the roadway of the paved road. In this connection structure, the building blocks 11 and 12 are arranged in series, and the two adjacent building blocks 11 and 12 are connected via the joint plate 2 and the connection pin 3.

  The building blocks 11 and 12 are made of concrete blocks having a trapezoidal cross section. Pin insertion holes 15 are respectively formed at the four corners of both end faces of the building blocks 11 and 12.

  Each pin insertion hole 15 is arrange | positioned in the position which mutually opposes between the adjacent building blocks 11 and 12 as shown in FIGS. Each pin insertion hole 15 is formed in a taper shape such that the hole diameter gradually decreases toward the back (inner side).

  On the other hand, the joint plate 2 interposed between the building blocks 11 and 12 is formed in a trapezoidal shape following the end face shape of the building blocks 11 and 12. Pin through holes 21 are formed at the four corners of the joint plate 2 so as to correspond to the pin insertion holes 15 of the building blocks 11 and 12, respectively.

  In this embodiment, the joint plate 2 is made of an elastic foam joint material, and has a lower strength than the connecting pin 3 described in detail later.

  As shown in FIG. 4 and FIG. 5A, the connecting pin 3 is configured such that an intermediate portion in the axial direction is formed as a through-mounting portion 31, and one side end portion and the other side end portion are the one side taper portion 35 and the other side taper. Each part 36 is formed.

  In the present embodiment, as described above, the connecting pin 3 is formed of a hard synthetic resin molded product having a higher strength than the joint plate 2.

  The tapered portions 35 and 36 of the connecting pin 3 are formed in a tapered shape so that the outer diameter dimension is gradually reduced toward both sides (both ends) in the axial direction. The tapered portions 35 and 36 are formed in a shape corresponding to the pin insertion holes 15 of the building blocks 11 and 12 and are configured to be fitted into the pin insertion holes 15.

  The through-mounting portion 31 in the connecting pin 3 basically has a cylindrical shape, and the outer peripheral surface is arranged in parallel with the axis. The length in the axial direction of the through-mounting portion 31 is formed to be substantially the same as the length in the axial direction in the pin through hole 21 of the joint plate 2.

  As shown in FIGS. 4, 5 </ b> A, and 5 </ b> B, a plurality of recesses 4 are formed at predetermined intervals in the circumferential direction on the outer peripheral surface of the through mounting portion 31 in the connecting pin 3. Each recess 4 has a substantially semicircular cross section and is formed in the same shape.

  As will be described later, the concave portion 4 can accommodate a part 20 of the peripheral edge portion of the pin through hole 21 in the joint plate 2. In the present embodiment, the total capacity of the plurality of recesses 4 is adjusted to be larger than the total amount of the deformed joint plate 2 by inserting the connecting pin 3 into the pin through hole 21.

  The tapered portions 35 and 36 on both sides of the connecting pin 3 are respectively formed with cylindrical hollow portions 37 and 37 that open to the end surfaces.

  The building block connection structure of the present embodiment is constructed by the following procedure, for example. This construction procedure is basically the same as the conventional one.

  First, the joint plate 2 is held on the end face of the existing building block 11 with one hand, and one side of the connecting pin 3 is pinned through the hole 21 of the joint plate 2 with the other hand. And it inserts in the pin insertion hole 15 of the existing construction block 11. Further, the same operation is performed, and the connecting pin 3 is inserted into two appropriate pin through holes 21, for example, two pin through holes 21 arranged diagonally, and is inserted into the pin insertion hole 15. The plate 2 is held on the end face of the existing building block 11 via the two connecting pins 3.

  Here, the insertion work of the connecting pin 3 is a work in a strict posture at the middle waist as in the prior art, so when inserting the connecting pin 3 into the pin through hole 21 of the joint plate 2 as shown in FIG. The axial center X1 of the connecting pin 3 is displaced (aligned) with respect to the axial center X2 of the pin through hole 21, and the outer peripheral surface of the connecting pin 3 interferes with the inner peripheral surface of the pin through hole of the joint plate 2. There is a possibility that the peripheral edge of the through hole is deformed. For this reason, the repulsive force of the deformed portion becomes a resistance force, and there is a possibility that the connecting operation of the connecting pin 3 cannot be easily performed (see FIG. 10A and the like).

  On the other hand, in this embodiment, since the recessed part 4 is formed in the outer peripheral surface of the penetration mounting part of the connection pin 3, the connection pin 3 is inserted in the pin through-hole 21 of the joint plate 2 as shown in FIG. At this time, a part of the peripheral edge of the pin through hole of the joint plate 2 is accommodated in the recess 4 of the connecting pin 3, so that the deformation amount of the peripheral edge of the pin through hole is reduced. For this reason, the repulsive force (resistance force) of the deformed portion is also reduced, and the insertion operation of the connecting pin 3 can be performed easily and smoothly.

  In particular, in the present embodiment, since a plurality of concave portions 4 of the connecting pin 3 are formed at equal intervals in the circumferential direction, any position in the circumferential direction of the connecting pin 3 interferes with the peripheral portion of the pin through hole of the joint plate 2. Even so, a part of the interfering portion of the joint plate 2 can be reliably accommodated in the recess 4 of the connecting pin 3. Accordingly, the insertion operation of the connecting pin 3 can be performed more easily and smoothly.

  Further, as shown in FIG. 3, in the present embodiment, in a state where the through mounting portion 31 of the connecting pin 3 is inserted into the pin through hole 21 of the joint plate 2, a part 20 of the peripheral portion of the pin through hole of the joint plate 2. However, since it is accommodated and engaged in the recessed part 4 of the connection pin 3, the retention strength of the joint plate 2 by the connection pin 3 increases.

  In particular, in the present embodiment, since a plurality of the recesses 4 of the connecting pin 3 are formed at equal intervals in the circumferential direction, a part 20 of the peripheral portion of the pin through hole of the joint plate 2 is accommodated in each recess 4. Thus, the holding force of the joint plate 2 by the connecting pin 3 can be increased in the entire circumferential direction.

  On the other hand, after the insertion of the connecting pin 3 is completed, the construction block to be constructed next (the next construction block 12) is installed in the vicinity of the end face of the existing construction block 11 in the same manner as in the prior art. Adjust the height level using mortar.

  Thereafter, the next building block 12 is drawn toward the existing building block 11, and the corresponding pin insertion hole 15 of the next building block 12 is formed in the other side tapered portion 36 of the connecting pin 3 on the existing building block 11 side. Mating. Thereby, the connection work of both building blocks 11 and 12 is completed, and a connection structure is formed.

  As described above, according to the connecting structure of the building blocks of the present embodiment, the operation of inserting the connecting pins 3 into the pin through holes 21 of the joint plate 2 can be easily and smoothly performed. It can be done easily and smoothly.

  Furthermore, according to this embodiment, the holding force of the joint plate 2 by the connecting pin 3 can be increased.

  Moreover, in this embodiment, since the total capacity | capacitance of the recessed part 4 is formed larger than the total capacity | capacitance of the deformation | transformation part of the joint plate 2, all the deformation | transformation parts of the joint plate 2 are reliably accommodated in the recessed part 4. FIG. Thus, it is possible to prevent the case where the peripheral portion of the pin through hole of the joint plate 2 swells in the thickness direction.

  In the above embodiment, the recess 4 is formed in a substantially semicircular cross section. However, the present invention is not limited to this, and in the present invention, the shape of the recess is not limited and may be formed in any shape. good. For example, as shown in FIG. 7A, it is formed in a U-shaped cross section (rectangular cross section), or as shown in FIG. 7B, it is formed in a V-shaped cross section (triangular cross section or valley groove shape). Anyway. Further, the size of the recess is not particularly limited, and may be formed in any size, and the number of the recesses is not limited, as long as at least one is formed.

  Furthermore, in the above-described embodiment, the recess 4 is formed over the entire area of the connecting pin 3 in the axial direction of the through-mounting portion 31. However, the present invention is not limited to this, and in the present invention, the recess is mounted through the connecting pin 3 You may make it form only in a part of axial direction of the part 31. FIG.

  Further, in the above embodiment, the case where the present invention is applied to the connection structure of the boundary building blocks has been described as an example. However, the present invention is not limited thereto, and the present invention is a structure when connecting building blocks such as concrete blocks. Any connection structure can be applied.

  The construction block connection structure of the present invention can be used, for example, when connecting a boundary construction block between a sidewalk and a roadway of a paved road.

DESCRIPTION OF SYMBOLS 11, 12: Building block 15: Pin insertion hole 2: Joint brace 20: Part of pin through-hole peripheral part 21: Pin through-hole 3: Connection pin 31: Through-mounting part 35, 36: Tapered part on the other side 4: Concave part

Claims (3)

A joint plate is interposed between adjacent building blocks, and pin insertion holes are respectively formed on opposite end surfaces of the adjacent building blocks corresponding to the pin through holes formed in the joint plate, while the pins are formed in the middle portion. The through-mounting portion in the connecting pin in which a through-mounting portion is formed corresponding to the through-hole and a tapered portion whose outer diameter decreases toward both ends in both end portions is disposed through the pin through-hole. And, the connecting structure of the building block, wherein the tapered portion is inserted into the pin insertion hole of the adjacent building block,
A recess is formed on the outer peripheral surface of the through-mounting portion in the connecting pin,
Part of the peripheral edge of the pin through hole of the joint plate is housed in the recess.   The building block connection structure according to claim 1, wherein a plurality of the recesses are formed at intervals in the circumferential direction. A connection pin for a building block used when connecting adjacent building blocks with a joint plate interposed therebetween,
A through-mounting part is formed in the intermediate part, and a tapered part whose outer diameter decreases toward both ends at both end parts,
The through mounting portion is arranged corresponding to the pin through hole formed in the joint plate, and is configured to be able to pass through the pin through hole.
The tapered portion is configured to be able to be inserted into the insertion holes respectively formed in the opposing end surfaces of the adjacent building blocks,
A connecting pin for a building block, wherein a concave portion is formed on an outer peripheral surface of the through-mounting portion.

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