JP7393259B2 - Jig for fixing hardware - Google Patents

Description

The present invention relates to a jig for fixing hardware.

BACKGROUND ART Conventionally, in steel-framed buildings, building side members constituting outer walls, roofs, etc. are fixed to the steel frame via a plurality of hardware. In addition, in order to maintain a uniform finished surface of a building, it is important that the hardware that receives the building side members be placed at reference positions according to the blueprints.

Patent Document 1 discloses a hardware fixing jig for guiding a hardware that receives a building side member (panel member) as described above to a reference position. The hardware fixing jig includes a pair of supporting hardware that is attached to a flange portion of a steel frame, and a guide hardware that is supported by the pair of supporting hardware. The positioning of each support hardware is performed visually according to the reference position for the hardware marked on the flange. Thereafter, the flange portion of the steel frame is sandwiched by bolting the angle members and C-shaped members that constitute each support hardware. This fixes the supporting hardware to the steel frame. In this state, when the hardware is placed inside the pair of supporting hardware, the guide hardware guides the hardware to the reference position.

Japanese Patent Application Publication No. 2006-002366

However, in the above-mentioned prior art, it is assumed that the reference position of the hardware is marked on the flange in order to position the hardware fixing jig. Each work is independent. For this reason, multiple steps are required to attach the hardware fixing jig, so there is room for improvement in terms of ease of positioning the hardware.

The present invention takes the above-mentioned facts into account and aims to provide a jig for fixing hardware that can facilitate the positioning of hardware.

The hardware fixing jig according to the first aspect has an open end facing the steel frame side of the building, and can clamp the flange part of the steel frame by inserting the flange part into the open end. a clamping section configured, a regulating means for regulating movement of the flange section when the flange section is inserted from the open end to a reference position, and a regulating means for regulating the movement of the flange section from the clamping section along the height direction of the web section of the steel frame. and a guide portion that extends from the flange portion and guides a mounting position of a metal object to be fixed to the flange portion.

The hardware fixing jig according to the first aspect includes a clamping part that clamps a flange part of a steel frame of a building, and a guide part that extends a material from the clamping part, and the mounting position of the hardware fixed to the flange part is fixed. Guided by a guide section. In addition, the clamping part is configured such that the flange part is inserted from the open end facing the steel frame side of the building, and when the flange part is inserted to the reference position, the movement of the flange part is prevented by the regulating means. Regulated. Thereby, the relative positioning of the hardware fixing jig with respect to the flange can be performed at the same time as the work of attaching the hardware fixing jig to the flange through the holding part. As a result, the hardware fixing jig can be set easily and in a short time at the construction site, making it easy to position the hardware.

In the hardware fixing jig according to a second aspect, in the configuration described in the first aspect, the clamping part is configured to clamp the flange part by the urging force of a leaf spring member, and the regulating means includes: The proximal end portion of the leaf spring member contacts the tip of the flange portion when the flange portion is inserted to the reference position.

In the hardware fixing jig according to the second aspect, when the flange portion is inserted from the open end of the leaf spring member to the reference position, the flange portion comes into contact with the base end portion and displacement is regulated. In this way, since the regulating means is provided integrally with the clamping part, the number of parts of the hardware fixing jig can be reduced.

In the hardware fixing jig according to a third aspect, in the configuration described in the first aspect or the second aspect, the hardware includes a fixing part fixed to the flange part and an extension extending from one end of the fixing part. a vertical plate part to which the building side member is fixed; a pair of the clamping parts are disposed on both sides of the fixing part; the guide part connects the pair of clamping parts; , is configured to be able to support the vertical plate portion and guide the hardware to a mounting position, and is expanded around the vertical plate portion so that an operator can grasp it together with the vertical plate portion.

The hardware fixing jig according to the third aspect has a pair of clamping parts arranged on both sides of the hardware fixing part, and the guide part of the hardware fixing jig connects the pair of clamping parts. The structure is such that the hardware is guided to the mounting position by supporting the vertical plate portion of the hardware. Here, the guide part is formed around the vertical plate part of the hardware so that the operator can grip it together with the vertical plate part of the hardware. Thereby, the operator can stably support the hardware at a predetermined attachment position by grasping the vertical plate part together with the guide part. Therefore, positional deviation when fixing the hardware to the flange portion is reduced, and assembly accuracy is improved.

As explained above, the hardware fixing jig according to the first aspect has the excellent effect of facilitating the positioning of the hardware.

The hardware fixing jig according to the second aspect has an excellent effect of being able to reduce the number of parts of the hardware fixing jig.

The hardware fixing jig according to the third aspect has the excellent effect of reducing positional deviation when fixing the hardware to the flange portion and improving assembly accuracy.

FIG. 2 is a perspective view showing a hardware fixed to a steel frame of a building using a hardware fixing jig according to the present embodiment. FIG. 2 is an enlarged cross-sectional view showing a partially enlarged cross section taken along line 2-2 in FIG. 1; FIG. 2 is a plan view of a part of the steel frame placed on the lower side of the building in FIG. 1 when viewed from above the building. FIG. 2 is a plan view of the hardware fixing jig according to the present embodiment. FIG. 2 is a front view of the hardware fixing jig according to the present embodiment. FIG. 2 is a side view of the hardware fixing jig according to the present embodiment. FIG. 2 is an exploded perspective view showing a state in which a hardware fixing jig according to the present embodiment is used to position a hardware to be fixed to a flange portion of a steel frame on the ceiling side. 8 is a front view corresponding to FIG. 7. FIG. FIG. 9 is an enlarged cross-sectional view showing an enlarged section taken along line 9-9 in FIG. 8; FIG. 10 is an enlarged sectional view corresponding to FIG. 9 illustrating a state in which the hardware fixing jig according to the present embodiment is used to position the hardware fixed to the flange portion of the steel frame on the floor side.

[First embodiment]
The hardware fixing jig 40 according to the first embodiment will be described below with reference to FIGS. 1 to 10. The hardware fixing jig 40 is, for example, a jig that is attached to the flange portion 20 of the steel frame 16 provided as a beam member of the steel frame building 10 and positions the hardware 22 to be fixed to the flange portion 20. . Below, first, the outer wall portion 12 of the building 10 to which the hardware 22 is fixed will be explained.

FIG. 1 schematically shows a part of an outer wall 12 of a building 10. An outer wall panel 14 is erected on the outer wall portion 12 of the building 10. The outer wall panel 14 is, for example, an ALC (Autoclaved Lightweight Concrete) panel made of lightweight aerated concrete, and has anchors (not shown) arranged inside.

A pair of steel frames 16 are arranged on the indoor side of the exterior wall panel 14, spaced apart in the height direction of the building, and extending horizontally.The pair of steel frames 16 are to which the exterior wall panel 14 is attached. There is. The steel frame 16A on the upper side of the building is used as a ceiling beam of the building 10, and its end in the extending direction is supported by the upper end of a column member (not shown). Further, the steel frame 16B on the lower side of the building is used as a floor beam of the building 10, and its end in the extending direction is supported by the lower end of a column member (not shown). These steel frames 16A and 16B are made of I-shaped steel, and have a web portion 18 extending in the building height direction when viewed in longitudinal section, and a web portion 18 extending horizontally from the upper and lower ends of the web portion 18. A flange portion 20 is provided. Hereinafter, when distinguishing between the flange parts 20 extending from the upper end and the lower end of the web part 18, the flange part 20 extending from the upper end of the web part 18 will be referred to as the upper flange part 20A, and the flange part 20 extending from the lower end of the web part 18 will be referred to as the upper flange part 20A. The flange portion 20 will be described as a lower flange portion 20B.

A metal fitting 22 is fixed to each flange portion 20 of the steel frames 16A, 16B having the above configuration, and the outer wall panel 14 is attached via the metal fitting 22. The hardware 22 is configured as a set including an upper hardware 24 fixed to the steel frame 16A on the upper side of the building, and a lower hardware 32 fixed to the steel frame 16B on the lower side of the building.

As shown in FIGS. 1 and 2, the upper hardware 24 is formed in an angular shape, and includes a fixing part 24A horizontally disposed below the lower flange part 20B of the steel frame 16A, and a roof of the fixing part 24A. A vertical plate portion 24B is provided that extends substantially vertically downward (in the height direction of the web portion 18) from the outer end. A bolt 26 passes through the fixing portion 24A and the lower flange portion 20B from the lower side of the building, and a nut 28 is screwed onto the tip of the bolt 26. Thereby, the fixing portion 24A of the upper hardware 24 is fixed to the lower flange portion 20B. Note that the through hole for the bolt 26 formed in the fixing part 24A is a relief hole 30, and has an oval shape that is long in the depth direction of the lower flange part 20B (direction perpendicular to the extending direction of the steel frame 16). has been done. The inner diameter of the relief hole 30 is larger than the outer dimension of the shaft of the bolt 26, so after temporarily fixing the upper hardware 24 using the bolt 26 and nut 28, use the hardware fixing jig described later. 40 can be used to finely adjust the mounting position.

Furthermore, the outdoor end of the fixing portion 24A projects further outdoors than the outdoor tip 20B1 of the lower flange portion 20B. Therefore, the vertical plate portion 24B extending from the outdoor end of the fixing portion 24A is spaced apart from the tip portion 20B1 of the lower flange portion 20B. The outdoor side surface of this vertical plate portion 24B is used as a mounting surface for the above-mentioned outer wall panel 14. A set bolt 27 passes through the vertical plate portion 24B from the indoor side, and the tip of the set bolt 27 is fixed to an anchor disposed inside the outer wall panel 14. Thereby, the upper part of the outer wall panel 14 is fixed to the vertical plate part 24B of the upper hardware 24. Further, as described above, since the vertical plate portion 24B is spaced apart from the tip portion 20B1 of the lower flange portion 20B, a predetermined gap t is formed between the outer wall panel 14 and the steel frame 16A. This gap t is an adjustment allowance for absorbing variations in assembly of the building frame and the exterior wall panel 14, and is also a space for arranging a heat insulating material to be laid on the indoor side surface of the exterior wall panel 14. .

As shown in FIG. 3, the lower hardware 32 is fixed to the upper flange portion 20A of the steel frame 16B. This lower hardware 32 is configured as a set by a support member 34 fixed to the upper flange portion 20A and an angle member 36 to which the outer wall panel 14 is attached. This lower hardware 32 is joined to a fixing portion 34A of a support member 34 that extends horizontally above the upper flange portion 20A, and to an outdoor end of the support member 34, and is connected approximately vertically upward from the end (web The vertical plate portion 36A of the angle member 36 extends in the height direction of the portion 18.

A bolt 26 passes through the fixing portion 34A and the upper flange portion 20A from the lower side of the building, and a nut 28 is screwed onto the tip of the bolt 26. Thereby, the fixed portion 34A of the support member 34 is fixed to the upper flange portion 20A. Further, the outdoor end of the fixing part 34A projects further outdoors than the tip 20A1 of the upper flange part 20A, and the vertical plate part 36A stands up from the outdoor end of the fixing part 34A. It is arranged apart from the tip 20A1 of the upper flange 20A. Further, a set bolt 27 passes through the vertical plate portion 36A of the angle member 36 from the indoor side, and the tip of the set bolt 27 is fixed to an anchor inside the outer wall panel 14. Thereby, the vertical plate portion 36A of the lower hardware 32 is fixed to the lower part of the outer wall panel 14. In this state, a predetermined gap t is formed between the lower part of the outer wall panel and the steel frame 16B, similar to the upper part of the outer wall panel 14.

As explained above, in the building 10, the upper hardware 24 and the lower hardware 32 are used to form a predetermined gap t between the indoor side surface of the outer wall panel 14 and the tips of the flange portions 20 of the steel frames 16A, 16B. and connects the two. In this embodiment, the mounting positions of the upper hardware 24 and the lower hardware 32 can be determined using the hardware fixing jig 40 without marking reference lines on the steel frame 16. The hardware fixing jig 40 will be described in detail below.

As shown in FIGS. 4 to 6, the hardware fixing jig 40 includes a main body portion 42 made of a plate-like member made of resin. The main body portion 42 includes a pair of base portions 44 and a guide portion 46 that connects these base portions 44.

Each base portion 44 is a plate-shaped member arranged parallel to the flange portion 20 of the steel frame 16 during installation, and together with the plate spring member 48 fixed to the base portion 44, the holding portion 50 of the hardware fixing jig 40 It consists of The leaf spring member 48 is formed by bending a metal plate material, and includes an elastic part 48A bent in a mountain fold, a base end part 48B bent at a substantially right angle from one end of the distal end part, and a base end part 48B. The mounting portion 48C is bent from one end and arranged along the lower surface 44A of the base portion 44.

A gap thinner than the plate thickness of the flange portion 20 is formed between the elastic portion 48A of the leaf spring member 48 and the base portion 44, and the elastic portion 48A extends along the base portion 44. Further, the indoor end of the elastic portion 48A is an open end 52 that faces the steel frame 16 side. The hardware fixing jig 40 is configured to sandwich the flange portion 20 by the urging force of the leaf spring member 48 by inserting the flange portion 20 from the open end 52 against the elastic force of the elastic portion 48A. (See Figures 8 and 10).

As shown in FIGS. 8 and 10, in this embodiment, when the flange portion 20 is inserted from the open end 52 and the hardware fixing jig 40 is attached to the reference position, the tip of the flange portion 20 is It is configured to abut against the end portion 48B. In other words, the base end portion 48B constituting the leaf spring member 48 serves as a regulating means for regulating the movement of the flange portion 20 in order to mount the hardware fixing jig 40 at the reference position. Note that the reference position of the hardware fixing jig 40 refers to the flange of the exterior wall panel 14 and the steel frame 16 when the exterior wall panel 14 is attached to the hardware 22 fixed using the hardware fixing jig 40 as described later. This is the position where a gap t is formed between the portions 20 (20A, 20B) and the tip portions (20A1, 20B1).

As shown in FIG. 6, the attachment portion 48C of the leaf spring member 48 is attached to the lower surface 44A of the base portion 44. Specifically, a fastening bolt 54 passes through the mounting portion 48C and the base portion 44, and the tip of the bolt 54 is threaded into a female threaded portion of a through hole (not shown) formed in the base portion 44. are doing. In this way, since the leaf spring member 48 and the base portion 44 are fixed with the bolts 54, if the elastic force of the leaf spring member 48 decreases after long-term use, the leaf spring member 48 can be removed and replaced. can.

On the other hand, the guide portion 46 of the main body portion 42 connects the outdoor end portions of the pair of base portions 44. The guide portion 46 is a long plate-like member formed in a substantially U-shape, and extends from the outdoor end of the pair of base portions 44 along the height direction of the web portion 18 of the steel frame 16. There is. More specifically, the guide portion 46 includes first straight portions extending from the ends of the pair of base portions 44, and a second straight portion 46B connecting the tips of the first straight portions 46A. The base end of the first linear part is joined to the outdoor end of the base part 44 using an adhesive. Further, in this embodiment, a reinforcing member 56 that straddles the seam of the first straight part 46A and the base part 44 is joined to the side surface in the width direction of the hardware fixing jig 40, and the reinforcing member 56 is connected to the first straight part 46A and the second straight part The joint portion of section 46B is reinforced.

FIG. 7 shows an exploded perspective view of the upper metal fitting 24 temporarily fixed to the lower flange portion 20B of the steel frame 16A, and the metal fitting fixing jig 40 attached to the lower flange portion 20B corresponding to the upper metal fitting 24. has been done.

As shown in these figures, when the hardware fixing jig 40 is attached to the lower flange portion 20B, it is attached with the guide portion 46 disposed below the pair of clamping portions 50. The operator inserts the tip portion 20B1 of the lower flange portion 20B from the open end 52 of the leaf spring member 48 with the pair of clamping portions 50 placed on both sides of the upper hardware 24. Further, the operator brings the tip end 20B1 of the lower flange portion 20B into contact with the base end 48B of the leaf spring member 48, and attaches the hardware fixing jig 40 to the reference position (see FIG. 8).

As shown in FIG. 8, when the hardware fixing jig 40 is installed at the reference position, when viewed from the extending direction of the steel frame 16, the tip 20B1 of the lower flange portion 20B and the indoor side of the guide portion 46 A gap t is formed between the reference surface R and the surface. The operator moves the upper hardware 24 to a position where the outdoor side surface of the vertical plate portion 24B of the upper hardware 24 abuts the reference surface R of the first linear portion 46A of the guide portion 46, and then adjusts the mounting position of the upper hardware 24. Determine. In other words, the guide section 46 is configured to guide the upper hardware 24 to the attachment position by supporting the tip of the vertical plate section 24B with the first straight section 46A.

Further, as shown in FIG. 9, when the hardware fixing jig 40 is attached to the lower flange portion 20B, the U-shaped guide portion 46 is attached to the upper hardware when viewed from a direction perpendicular to the extending direction of the steel frame 16. 24 so as to partially overlap with the vertical plate portion 24B, and the guide portion 46 is expanded to surround the vertical plate portion 24B (outside the outer peripheral portion of the vertical plate portion 24B). The operator positions the upper hardware 24 by holding the guide part 46 and the vertical plate part 24B simultaneously with one hand and supporting the vertical plate part 24B by the guide part 46 (hand H1 in FIG. (See hand H2). In this state, the operator fastens the bolt 26 and nut 28 with the other hand prepared with the tool. This completes the work of fixing the upper hardware 24.

As shown in FIG. 10, when fixing the lower hardware 32 to the upper flange 20A of the steel frame 16B, the hardware fixing jig 40 is vertically inverted and attached to the upper flange 20A. Then, similarly to the upper hardware 24 described above, the pair of clamping parts 50 are attached to the upper flange 20A on both sides of the lower hardware 32, and the upper flange 20A is brought into contact with the base end 48B of the leaf spring member 48. . In this state, a gap t is formed between the tip portion 20A1 of the upper flange portion 20A and the reference surface R of the guide portion 46. Thereafter, the guide portion 46 of the hardware fixing jig 40 guides the lower hardware 32 to the attachment position by supporting the tip of the vertical plate portion 36A of the angle member 36 with the first straight portion 46A. The operator holds the guide portion 46 and the lower hardware 32 with one hand at the same time, and uses the other hand to fasten the bolt 26 and nut 28 to complete the work.

(action/effect)
Next, the operation and effects of this embodiment will be explained.

The hardware fixing jig 40 according to the present embodiment includes a clamping part 50 that clamps the flange part 20 of the steel frame 16 of the building 10, and a guide part 46 extending from the clamping part 50, and is fixed to the flange part 20. The guide portion 46 guides the mounting position of the hardware 22. Further, the holding part 50 is configured such that the flange part 20 is inserted from an open end 52 facing the steel frame 16 side of the building 10, and when the flange part is inserted to the reference position, the regulating means Movement of the flange portion is restricted. Thereby, the relative positioning of the hardware fixing jig 40 with respect to the flange part 20 can be performed at the same time as the work of attaching the hardware fixing jig 40 to the flange part 20 via the holding part 50. As a result, the hardware fixing jig 40 can be set easily and in a short time at the construction site, making it easy to position the hardware 22.

Further, the holding part 50 of this embodiment holds the flange part 20 by the urging force of the leaf spring member 48, and when the flange part 20 is inserted from the open end 52 to the reference position, the leaf spring member 48 The displacement is regulated by contacting the base end portion 48B. In this way, since the regulating means is provided integrally with the leaf spring member 48 of the holding portion 50, the number of parts of the hardware fixing jig 40 can be reduced. Furthermore, since the flange portion 20 is held between the leaf spring members 48, the attachment and detachment of the hardware fixing jig 40 can be easily performed.

Furthermore, the hardware fixing jig 40 according to the present embodiment has a pair of clamping parts 50, and these clamping parts 50 are arranged on both sides of the fixing part (24A, 34A) of the hardware 22. has been done. Therefore, the reference plane R of the guide section 46 can be stabilized compared to a configuration in which the holding section 50 is arranged on one side of the fixing section (24A, 34A).

Further, the guide portion 46 is deployed around the vertical plate portions (24B, 36A) of the hardware 22 (outside the outer periphery of the vertical plate portion) and is held by the operator together with the vertical plate portions (24B, 36A) of the hardware 22. possible. Thereby, the operator can stably support the hardware 22 at a predetermined attachment position by grasping the vertical plate parts (24B, 36A) together with the guide part 46. Therefore, positional deviation when fixing the hardware 22 to the flange portion 20 is reduced, and assembly accuracy is improved. Furthermore, when the vertical plate parts (24B, 36A) and the guide part 46 are grasped, the position of the operator's hand (hand H1 in FIG. 9, hand H2) can be moved away from the fixing part (24A, 34A), so when fixing the hardware 22, there is no interference between the hand holding the guide part 46 and supporting the hardware 22 and the fastening tool. This improves work efficiency as it allows you to work while avoiding this.

[supplementary explanation]
In the above embodiment, the hardware fixing jig 40 is configured to position the steel frame 16 that constitutes the ceiling beam and floor beam of the building 10 and the hardware 22 fixed to the steel frame 16. However, it can also be used for positioning hardware fixed to the framework of various buildings. For example, it may be configured to position a steel frame that constitutes a roof beam and a metal fitting that connects the steel frame and the roof panel.

In the embodiment described above, the clamping part 50 of the hardware fixing jig 40 was configured to clamp the flange part 20 by the urging force of the leaf spring member 48, but the present invention is not limited to this. It may be configured to be held by the biasing force of a coil spring, or may be held by a fastener such as a bolt.

In the above embodiment, the hardware fixing jig 40 is provided with a pair of clamping parts 50, but it may also be configured with one clamping part 50. In this case, the guide portion 46 can be a plate-shaped member bent in an L-shape from one end of the holding portion.

Further, in this embodiment, the base portion 44 and the guide portion 46 that constitute the main body portion 42 of the hardware fixing jig 40 are configured separately, but the present invention is not limited to this. The base portion 44 and the guide portion 46 may be formed integrally. Further, in order to reduce the weight, the main body 42 of the hardware fixing jig 40 is made of resin in this embodiment, but the main body 42 may be made of metal or wood.

In the above embodiment, the regulating means for regulating the movement of the flange portion 20 is provided at the proximal end of the leaf spring member 48, but the present invention is not limited to this, and the present invention is not limited to this, and a configuration in which a regulating means separate from the leaf spring member 48 is provided. You can also use it as For example, a spacer member may be attached to the base end portion 48B of the leaf spring member 48, and the spacer portion may be used as a regulating means. According to this configuration, when the hardware fixing jig 40 is mounted at the reference position, the tip end of the flange portion 20 comes into contact with the spacer member.

Further, in the above embodiment, the reference position of the hardware fixing jig 40 is uniform, but the present invention is not limited to this, and the reference position of the hardware fixing jig 40 is changed according to the design of the building. A configuration may also be provided in which a standard position adjustment mechanism is provided. For example, in the above embodiment, the base part 44 and the leaf spring member 48 are fixed using the bolt 54, but one of the through holes of the base part 44 and the leaf spring member 48 through which the bolt 54 passes is connected to the base part 44. A reference position adjustment mechanism that is formed in an oval shape that is elongated in the depth direction is conceivable. In this case, the reference position can be adjusted by adjusting the relative positional relationship between the base portion 44 and the leaf spring member 48 along the longitudinal direction of the through hole.

10 Building 16 Steel frame 20 Flange part 22 Hardware (upper hardware, lower hardware)
24A Fixed part 24B Vertical plate part 34A Fixed part 36B Vertical plate part 40 Hardware fixing jig 46 Guide part 48 Leaf spring member 48B Base end part 50 Clamping part 52 Open end

Claims (2)

a clamping part having an open end facing the steel frame side of the building and configured to be able to clamp the flange part of the steel frame by inserting the flange part into the open end;
a regulating means for regulating movement of the flange when the flange is inserted from the open end to a reference position;
a guide part extending from the holding part along the height direction of the web part of the steel frame and guiding the attachment position of the hardware fixed to the flange part ;
The clamping part is configured to clamp the flange part by a biasing force of a leaf spring member,
The regulating means is a base end portion of the leaf spring member that comes into contact with a tip of the flange portion when the flange portion is inserted to the reference position.
Jig for fixing hardware. The hardware has a fixing part fixed to the flange part, and a vertical plate part extending from one end of the fixing part to which the building side member is fixed,
A pair of the holding parts are arranged on both sides of the fixing part,
The guide section connects the pair of clamping sections, supports the vertical plate section, and is configured to be able to guide the hardware to a mounting position, and is deployed around the vertical plate section so that the operator can It is formed to be grippable together with the vertical plate part.
The hardware fixing jig according to claim 1 .