JP4809301B2 - Fixing bolt for wood jointer - Google Patents

Description

  In the present invention, for example, a wood jointing tool capable of joining one building wood such as a pillar material to the other building wood such as a beam member in an orthogonal or inclined state is fixed to the one building wood. The present invention relates to a fixing bolt for a wood joint tool used for the purpose.

  For example, as a joint material tool B for building wood, a plate material is formed into a U-shape or a U-shape, and a bolt penetration provided in one of the building woods 1 such as a column 1 is formed in the folded portion 11. Bolt hole 8 for inserting fixing bolt A 'penetrating through hole 7 is provided, and the other side such as a beam material formed by pre-cutting is formed on the opposite bending free end side (two support plate portions). A structure having a joint connecting part 10 so that it can be connected to a wood joint part (through pinned) has been practiced in the past, and this wood joint tool B is fixed to one building wood 1 By connecting and fixing with two bolts A ′ and engaging and fixing the two support plate parts (joint connection part 10) with the joint part of the other building wood, the wood tools B (For example, refer patent document 1).

  Further, the fixing structure of the wood joint tool B to one building wood 1 will be further described. The fixing bolt A ′ is inserted into the bolt hole 8 formed in the folded portion 11 of the wood joint tool B, The bolt end of the fixing bolt A ′ inserted through the bolt hole 8 is inserted from one side into the bolt through hole 7 provided in one building wood 1 so that the bolt end protrudes from the opposite side of the bolt through hole 7. In this structure, the nut 9 is screwed onto the bolt tip of the fixing bolt A ′ protruding from the bolt through hole 7 and tightened.

JP 2002-167865 A

  By the way, the bolt through hole 7 for fixing this kind of wood joint tool B to one building wood 1 has a fixed bolt diameter so that the fixing bolt A ′ can be smoothly inserted. It is formed slightly larger than the bolt diameter of A ′.

  For this reason, the insertion work of the fixing bolt A ′ itself is performed very smoothly. However, until the fixing bolt A ′ is fastened and fixed with the nut 9, it can be easily detached from the bolt through hole 7. Then, the bolt end of the fixing bolt A ′ inserted through the bolt hole 8 of the wood joint tool B is inserted from one side into the bolt through hole 7 of one building wood 1 and this bolt end is passed through the bolt. After projecting from the opposite side of the hole 7, the operator turns the nut 9 around the bolt end of the fixing bolt A ′ projecting from the bolt through-hole 7 around the opposite side of the one building wood 1. However, before performing this screwing operation, the fixing bolt A ′ tends to come off from the bolt through hole 7 due to the weight of the wood joint tool B (see FIG. 6), and the nut 9 is to be screwed. The fixing bolt A 'is easily pushed back when It is necessary to hold the bolt head with Uno (see FIG. 7.), Etc., it had been the often these it becomes an obstacle of screwing operations of the nut 9.

  In view of such a current situation, the present invention is intended to solve this, and it is an epoch-making that can easily fix a fixing bolt inserted through a bolt through hole of a building wood to prevent it from being pulled out. A fixing bolt for a wood jointing tool is provided.

  The gist of the present invention will be described with reference to the accompanying drawings.

A wood jointing tool B for connecting one building wood 1 to the other building wood 1 with a joint is connected to the one building wood 1 in order to connect to the other building wood 1 with a right angle or an inclined state. This is a fixing bolt A for a wood jointing tool, and the diameter of the bolt rod 2 is set in a small range in the vicinity of the bolt head 3 on the base end side of the screw rod 4 of the bolt rod 2 having the screw portion 4 at the tip. A temporary fixing screw portion 6 having a diameter larger than that of the bolt through hole 7 formed in the one building wood 1 and penetrating the bolt 2 is bolted. When the screw is inserted into the through-hole 7 and turned, the temporary fixing screw 6 is inserted into and locked in the bolt through-hole 7, and the bolt rod 2 has a proximal end side from the screw 4 at the tip. The structure is formed in the screwless portion 5, and the bolt head 3 in the vicinity of the screwless portion 5 The fixing screw portion 6 is formed, and the temporary fixing screw portion 6 is formed at a position spaced from the bolt head 3, and between the temporary fixing screw portion 6 and the bolt head 3. Is formed in the screwless portion 5, and the interval between the temporary fastening screw portion 6 and the bolt head 3 is set such that the bolt hole 8 provided in the wood joint tool B can be disposed. set, characterized by being configured so as to dispose the bolt holes 8 of the timber passage alloy tool B in the non-threaded portion 5 you exist between the temporary fastening screw part 6 and the bolt head 3 This relates to a fixing bolt for a wood joint tool.

  In the present invention, as described above, the temporary fixing screw portion larger in diameter than the hole diameter of the bolt through hole is formed in the bolt rod, so that it is inserted into the bolt through hole of one building wood through the wood joint tool. By screwing the fixed bolt with an electric rotating tool or the like, the temporary fixing screw part bites into and locks into the bolt through hole. Because it is in a state that prevents it from coming off (temporarily fixed), the fixing bolt can easily be removed from the bolt through hole due to the weight of the wood joint tool, or the fixing bolt can be pushed back when the nut is screwed. In practicality, the nut can be easily screwed onto the tip of the fixed bolt that protrudes from the bolt through-hole in the temporarily fixed state, and the tightening and fixing operation can be performed. Excellent wood joint In addition to the structure of the conventional fixing bolt, the present invention substantially has a diameter larger than the diameter dimension of the bolt rod from the tip portion of the bolt rod to the bolt head side, and Since it can be configured only by forming a temporary fixing screw portion having a diameter larger than the hole diameter of the bolt through hole formed through the one building wood, this configuration can be easily designed and realized. It is an excellent epoch-making fixing bolt for wood jointing tools that is excellent in mass production and can be provided at low cost.

Further, in the present invention , the screw bolt of the main fixing bolt is easily turned by an electric turning tool or the like by inserting the front end side of the bolt rod without the temporary fixing screw into the bolt through hole of one building wood. In addition to the fact that the temporary fixing screw portion is formed on the base end side of the bolt rod, the screw turning operation can be reduced as compared with the case where the temporary fixing screw portion is formed on the distal end side of the bolt rod. For example, the fixing bolt for a wood joint tool having a structure excellent in operability and practicality.

Further, in the present invention , because of the configuration in which the screw portion for temporary fixing is formed in a small range of the bolt rod, the wood having a configuration extremely excellent in practicality, such as being able to realize a simpler design and being excellent in mass productivity. It becomes the fixing bolt for the jointing tool.

Further, in the present invention , since the base end side of the bolt rod is a screwless portion, the fixed bolt can be easily inserted into the bolt through hole of one of the building woods, and the electric rotation can be performed in this inserted state. It is possible to easily perform the screwing operation of this fixed bolt with a tool or the like, and the provisional screw part is formed in the vicinity of the bolt head so that the screwing operation can be reduced. This is a fixing bolt for wood jointing tools with a configuration that excels in practicality.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  The wood joint tool B is fixed to one building wood 1 such as the pillar material 1 using the wood joint tool fixing bolt A of the present invention.

  Specifically, for example, the main fixing bolt A is inserted into the bolt hole 8 formed in the wood joint tool B, and the bolt end of the main fixing bolt A inserted into the bolt hole 8 is inserted into one building wood 1. When the fixed bolt A is inserted into the provided bolt through hole 7 from one side and the main fixing bolt A is screwed using the electric rotating tool 13 or the like, the temporary fixing screw portion 6 larger than the hole diameter of the bolt through hole 7 is bolted. The fixing bolt A protrudes from the opposite side of the bolt through-hole 7 by biting into the through-hole 7 and being screwed therein.

  The wood joint tool B can be fixed to one building wood 1 by screwing and tightening the nut 9 to the bolt tip of the main fixing bolt A protruding from the bolt through hole 7. At this time, the temporary fixing screw portion 6 is caught in and locked in the bolt through hole 7 so that the fixed bolt A is temporarily prevented from being detached from the bolt through hole 7. This prevents the main fixing bolt A from being easily removed from the bolt through-hole 7 due to the weight of the joint tool B, and the main fixing bolt A from being pushed back when the nut 9 is screwed. The nut 9 can be easily screwed to the front end portion of the main fixing bolt A protruding from the bolt through hole 7 in the temporarily fixed state to be fastened and fixed.

  Next, by connecting and fixing the other building wood 12 (joint portion) to the wood jointing tool B (joint joint portion 10) fastened to one building wood 1, the wood 1 and 12 Can be connected and fixed, for example, in an orthogonal state by the wood joint tool B.

  Further, for example, if the temporary fastening screw portion 6 is formed on the base end side of the bolt rod 2, the main fixing bolt A is first inserted deeply into the bolt through hole 7 to be in a relatively stable state. Therefore, it is possible to easily perform the screwing operation of the fixed bolt A with the electric rotating tool 13 or the like thereafter, and when the temporarily fixing screw portion 6 is formed in the vicinity of the tip end portion of the bolt rod 2. In order to project the screw portion 4 at the tip of the fixed bolt 2 from the bolt through hole 7, a lot of screw turning operations must be performed. However, a temporary fixing screw portion 6 is formed on the base end side of the bolt rod 2. Therefore, it becomes more practical, for example, an operation with few screw turning operations is sufficient.

  In particular, if the screw part 6 for temporary fixing is formed in a small range in the vicinity of the bolt head 3 on the base end side of the bolt rod 2, the operation and effect can be more reliably exhibited, and Since the fixing screw portion 6 is formed in a small range of the bolt rod 2, the design can be easily realized.

  Further, for example, the bolt rod 2 is configured such that the tip end portion is formed in the screw portion 4 and the base end side is formed in the screwless portion 5 from the screw portion 4 at the tip end, and the bolt of the screwless portion 5 is formed. If the temporary fastening screw part 6 is formed in the vicinity of the head 3, in addition to the above-mentioned action and effect, the base end side from the screw part 4 at the tip of the bolt rod 2 is the screwless part 5. The bolt A can be easily inserted into the bolt through-hole 7 of the one building wood 1, and the operability is further improved.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In this embodiment, a wood joint tool B for connecting a pillar 1 as one building wood 1 and a cross member 12 such as a beam as another building wood 12 is fixed to the pillar 1. The present invention relates to a fixing bolt A for a wood joint tool used for the purpose.

  Further, in the illustrated pillar 1, bolt through holes 7 having diameters slightly larger than the diameter of the bolt rod 2 of the fixing bolt A through which the fixing bolt A can be inserted are formed in tandem at a plurality of center positions. ing.

  In addition, the illustrated wood joint tool B is configured such that a plate member is bent into a U-shape or U-shape in a flat cross section, and a joint connecting portion 10 having a two-piece support structure protrudes on the opposite side of the folded portion 11. A plurality of bolt holes 8 are formed in tandem at the center position of the folded portion 11 so as to correspond to the bolt through holes 7.

  The fixing bolt A for wood joint tool of the present embodiment is larger in diameter than the diameter dimension of the bolt rod 2 on the bolt head 3 side from the distal end portion of the bolt rod 2 having the screw portion 4 at the distal end portion. In addition, a temporary fastening screw portion 6 having a diameter larger than that of the bolt through hole 7 formed through the one building wood 1 (column 1) is formed, and the bolt rod 2 is connected to the bolt through hole. When the screw is inserted into the screw 7 and turned, the screw portion 6 for temporary fixing is configured to bite into and lock into the bolt through hole 7.

  Specifically, as shown in FIG. 1, the bolt rod 2 of the present embodiment has a tip portion formed in the screw portion 4 and a base end side of the tip screw portion 4 formed in the screwless portion 5. The temporary fixing screw portion 6 is formed in the vicinity of the bolt head 3 on the proximal end side of the screwless portion 5.

  More specifically, the thickness of the plate material constituting the wood joint tool B (thickness of the folded portion 11) and the periphery of the bolt hole 8 are raised toward the joint connecting portion 10 as in the illustrated wood joint tool B. In consideration of the case of using the wood joint tool B having a shape, the temporary fixing screw is not located at the base end portion of the screwless portion 5 but at a position spaced apart from the bolt head 3 near the base end of the screwless portion 5. Part 6 is formed. In other words, by forming the temporary fixing screw portion 6 at a position spaced apart from the bolt head 3 in this way, the entire range of the temporary fixing screw portion 6 is bitten into the bolt through hole 7 and locked. Thus, it is configured so that a good detachment action (temporary fastening action) can be obtained.

  The temporary fixing screw portion 6 is formed by forming screw threads on the entire circumference of the bolt rod 2 and is formed in a small range of about 10 mm in the length direction of the bolt rod 2. Therefore, the structure for additionally forming the screw thread (temporary fixing screw portion 6) in such a small range of about 10 mm is a structure that can be easily designed and realized, and can provide an inexpensive product with excellent mass productivity. It becomes.

  Further, in this embodiment, the dimensional difference between the diameter dimension of the bolt rod 2 and the diameter dimension of the temporary fixing screw portion 6 is set to 1 mm or less.

  Specifically, as shown in FIG. 2, the height of the screw thread constituting the temporary fixing screw part 6 is set to be about 0.3 mm higher than the surface of the non-screw part 5. A temporary fastening screw portion 6 is formed which is slightly larger than the diameter of the bolt rod 2 and slightly larger than the diameter of the bolt through hole 7 formed through the pillar 1. Accordingly, the temporary fixing screw portion 6 is configured to be shallowly bited into the inner surface of the bolt through hole 7 and locked, and the temporary fixing screw portion 6 is deeply bitten into the inner surface of the bolt through hole 7 so as to prevent the column. 1 (one building wood 1) does not cause a drop in strength.

  Next, a method of fixing the wood joint tool B to the column 1 using the wood joint tool fixing bolt A of the present embodiment configured as described above will be described.

  The main fixing bolt A is inserted into the bolt hole 8 formed in the folded portion 11 of the wood joint tool B, and the bolt tip of the main fixing bolt A inserted into the bolt hole 8 is provided in one building wood 1. The hole 7 is inserted from one side (see FIG. 3).

  Then, since the temporary fixing screw portion 6 formed in the vicinity of the bolt head 3 of the bolt rod 2 is larger in diameter than the bolt through hole 7, the temporary fixing screw portion 6 is a hole edge on one side of the bolt through hole 7. However, when the main fixing bolt A is screwed by using the electric rotating tool 13 or the like, the temporary fixing screw portion 6 becomes the bolt. It will bite into and lock into the through hole 7 and will be screwed deeper, and the bolt tip of the fixed bolt A will protrude from the opposite side of the bolt through hole 7 (see FIG. 4).

  Then, the temporary fastening screw portion 6 bites into and engages with the bolt through-hole 7, so that the fixed bolt A is prevented from coming off from the bolt through-hole 7. It is possible to reliably prevent the fixing bolt A from being easily removed due to the weight or the main fixing bolt A being pushed back when the nut 9 is screwed.

  Depending on the number of bolt through-holes 7 formed (three locations in the drawing), after the temporary fixing operation of the fixing bolt A is repeated, a nut is attached to the tip of the fixed bolt A protruding from the bolt through-hole 7 in the temporary fixing state. 9 can be easily screwed and tightened to complete the fixing operation (see FIG. 5).

  Further, FIG. 5 shows a case in which the wood joint tool B is fixed also to the bolt front end side of the main fixing bolt A, and the cross member 12 is connected and fixed to both opposite sides of the column member 1.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a perspective view which shows a present Example. It is a partial expansion explanatory front view which shows the principal part of a present Example. It is explanatory side view which notched the wood joint tool which shows the state which is going to fix a wood joint tool to a pillar material using a present Example. It is explanatory side sectional drawing which shows the state which temporarily attached this Example to the pillar material with the wood joint tool. It is explanatory side sectional drawing which shows the construction completion state of a present Example. It is explanatory side sectional drawing which shows the state from which the fixed volt | bolt (conventional example) has come off from the volt | bolt through-hole of a pillar material with the weight of a wood joint tool. It is explanatory side sectional drawing which shows the state which the fixing bolt (conventional example) was pushed back at the time of nut screwing, and is going to hold this with a hand.

DESCRIPTION OF SYMBOLS 1 Wood for construction 2 Bolt rod 3 Bolt head 4 Screw part 5 Screwless part 6 Screw part for temporary fixing 7 Bolt through hole
8 bolt hole
12 Wood for other construction A Fixing bolt B Wood jointer

Claims (1)

A wood joint tool used to fix a wood joint tool for connecting one construction wood to the other construction wood having a joint to the other construction wood at a right angle or an inclined state. A fixing bolt for a bolt having a screw portion at a distal end portion, in a small range near the bolt head on the base end side from the screw portion, larger in diameter than the diameter of the bolt rod, and When a temporary fixing screw portion having a diameter larger than the diameter of the bolt through hole formed in one of the building woods is formed, and the bolt rod is inserted into the bolt through hole and screwed, the temporary fixing screw is obtained. And the bolt rod has a configuration in which a base end side is formed in a screwless portion with respect to a screw portion of a tip portion, and the vicinity of the bolt head portion of the screwless portion. The temporary fixing screw portion is formed at the same time as the temporary fixing screw portion. The child portion is formed at a position spaced from the bolt head portion, and a gap portion existing between the temporary fastening screw portion and the bolt head portion is also formed in the non-screw portion, and the temporary fastening screw portion. and the distance between the bolt head, to set a bolt hole provided on the timber splicing alloy tool to disposed possible spacing, Mu said you exist between the temporary fixing screw portion and the bolt head A fixing bolt for a wood joint tool, wherein a bolt hole of the wood joint tool can be disposed in a screw portion.

Images