Variable-length stud

Abstract

The purpose of the present invention is to easily perform length adjustment work of stud materials. Provided is a variable-length stud including: a connection member having a first opening in a side wall; a first stud member having a second opening in a side wall; and a temporary fixing member inserted into the first opening and the second opening to temporarily fix the first stud member to the connection member. The first stud member is configured to be slidable with respect to the connection member.

Description

Variable-length stud 【0001】 This technology relates to a variable-length stud. 【0002】 As a background art in this technical field, there is Japanese Patent Application Laid-Open No. 2012-233307 (Patent Document 1). This publication describes that "from the end of the groove-shaped member 2, the end of another groove-shaped member 2 having the same shape as this is inserted, the engaging piece portion 8 is engaged with the engaging groove portion so as not to come off in a direction other than the longitudinal direction, and the other groove-shaped member 2 is slid in the longitudinal direction to form a joined portion 24 having a rectangular cross section where both groove-shaped members 2 are joined, and a long member that can be expanded and contracted is formed by adjusting the length of this joined portion 24." (See the abstract). 【0003】 Japanese Patent Application Laid-Open No. 2012-233307 【0004】 Patent Document 1 describes a joining structure of a groove-shaped member (stud member) with adjustable length suitable for base materials such as walls, ceilings, and floors. However, in Patent Document 1, no consideration has been given to easily performing the length adjustment operation of the stud member. In view of such circumstances, the present invention provides a configuration for easily performing the length adjustment operation of the stud member. 【0005】 In order to solve the above problems, for example, the configuration described in the claims is adopted. [[ID=********]] [[ID=********]] 【0006】 According to this technology, the length adjustment operation of the stud member can be easily performed. Problems, configurations, and effects other than those described above will be clarified by the description of the following embodiments. 【0007】Figure 1(a) is an example of an elevation view of a wall structure 1 including a variable-length stud unit 10 according to this embodiment. Figure 1(b) is an example of a side view of the wall structure 1 including a variable-length stud unit 10. Figure 2(a) is a perspective view showing an example of the connecting portion 70 of the variable-length stud unit 10 before sliding. Figure 2(b) is a perspective view showing an example of the connecting portion 70 of the variable-length stud unit 10 after sliding. Figure 2(c) is an example of an exploded view of the connecting portion 70 of the variable-length stud unit 10 before sliding. Figure 3(a) shows an example of the positional relationship between the upper end portion 102 of the upper stud member 100 and the upper runner 20 before sliding. Figure 3(b) shows an example of the positional relationship between the upper end portion 102 of the upper stud member 100 and the upper runner 20 after sliding. Figure 4 is an example of a cross-sectional view taken along line A-A in Figure 1(a). Figure 5(a) is an example of a first detailed view of the upper stud member 100 and lower stud member 200 of the connecting portion 70 of the variable length stud unit 10. Figure 5(b) is an example of a first detailed view of the connecting base plate portion 310 of the connecting member 300. Figure 6(a) is an example of an elevation detail view of the connecting portion 70 of the variable length stud unit 10 after temporary and permanent fastening. Figure 6(b) is an example of a side detail view of the connecting portion 70 of the variable length stud unit 10 after temporary and permanent fastening. Figure 7(a) is an example of a second detailed view of the upper stud member 100 and lower stud member 200 of the connecting portion 70 of the variable length stud unit 10. Figure 7(b) is an example of a second detailed view of the connecting base plate portion 310 of the connecting member 300. Figure 8(a) is an example of a third detailed view of the upper stud member 100 and lower stud member 200 of the connecting portion 70 of the variable length stud unit 10. Figure 8(b) is an example of a third detailed view of the connecting base plate portion 310 of the connecting member 300. Figure 9(a) is an example of a design drawing showing the shape and dimensions of the stud opening 150. Figure 9(b) is an example of another design drawing showing the shape and dimensions of the stud opening 150. Figures 10(a) to 10(d) are examples of explanatory diagrams showing variations of the stud opening 150. Figure 11 is an example of an explanatory diagram explaining the reinforcing member 1100. Figure 12(a) is an example of an explanatory diagram explaining the construction at an actual construction site. Figure 12(b) is an example of an explanatory diagram explaining the wall structure 1 installed using the variable-length stud unit 10. 【0008】[Embodiment 1] This embodiment will be described below with reference to the drawings. Note that in each drawing, components having the same function may not be denoted by reference numerals or described again. Each drawing is simplified for illustrative purposes, and even for the same components, the scale and the ratio of the dimensions of each object may differ. 【0009】 [Overview] When installing partition walls within a building, LGS (light gauge steel studs) are used as the base material for the wall. Typically, pre-cut studs are used to match the height from floor to ceiling. However, due to variations in the accuracy of the floor and ceiling, there are discrepancies in the height from floor to ceiling, resulting in variations in the required height of the studs. This has led to inconveniences such as increased ordering costs because the order dimensions cannot be standardized depending on the location where the studs are to be installed. 【0010】 The following describes a variable-length stud unit 10, which can be adjusted in length according to the height of the installation position during the installation of stud materials. [Variable-length stud unit] Figure 1(a) is an example of an elevation view of a wall structure 1 including the variable-length stud unit 10 according to this embodiment. The variable-length stud unit 10 is an example of a variable-length stud. 【0011】 The wall structure 1 shown in the figure is, for example, a partition wall structure installed inside a building, and includes base materials such as a variable-length stud unit 10, an upper runner 20 installed on the ceiling 2, and a lower runner 30 installed on the floor 3, and gypsum board 40 attached to these base materials. 【0012】 The variable-length stud unit 10 has an upper stud member 100, a lower stud member 200, and a connecting member 300, which are columnar members with a U-shaped cross-section. The upper stud member 100 and the lower stud member 200 are connected by the connecting member 300. 【0013】 Figure 1(a) shows that five sets of variable-length stud units 10 (10A to 10E) are arranged at regular intervals between the upper runner 20 and the lower runner 30, which are installed facing each other vertically. 【0014】The wall structure 1 has a sway-preventing member 50 that penetrates the upper stud member 100 of each of the five sets of variable-length stud units 10 (10A to 10E), and a sway-preventing member 60 that penetrates the lower stud member 200 of each of the five sets of variable-length stud units 10 (10A to 10E). 【0015】 In each variable-length stud unit 10, the upper end 102 of the upper stud member 100 is fitted into the upper runner 20, and the lower end 201 of the lower stud member 200 is fitted into the lower runner 30. In addition, in the variable-length stud unit 10, the connecting member 300 is positioned to overlap the lower end 101 of the upper stud member 100 and the upper end 202 of the lower stud member 200. 【0016】 Figure 1(b) is an example of a side view of a wall structure 1 including a variable-length stud unit 10. As explained using Figure 1(a), the variable-length stud unit 10 has an upper stud member 100 and a lower stud member 200, which are columnar members with a U-shaped cross-section, and further has a connecting member 300 that connects these upper stud member 100 and lower stud member 200. 【0017】 As explained using Figure 1(a), the connecting member 300 is positioned to overlap the lower end 101 of the upper stud member 100 and the upper end 202 of the lower stud member 200. Hereinafter, the region in which the connecting member 300 overlaps the area including the lower end 101 of the upper stud member 100 and the area including the upper end 202 of the lower stud member 200 will be referred to as the connecting portion 70 of the variable-length stud unit 10. 【0018】 In Figures 1(a) and 1(b), the area covered by the dashed line is shown as the connecting portion 70 as an example. The material and dimensions (e.g., thickness) of the upper stud member 100 and lower stud member 200 within the connecting portion 70 are the same as those of the upper stud member 100 and lower stud member 200 outside the connecting portion 70. Such a configuration makes the manufacturing of the upper stud member 100 and lower stud member 200 more efficient and reduces costs. 【0019】In an alternative configuration, for example, the thickness of the upper stud member 100 within the range of the connecting portion 70 may be designed to be thicker toward the inside (towards the U-shaped cavity) of the upper stud member 100 compared to the thickness of the lower stud member 200 and the thickness of the upper stud member 100 outside the range of the connecting portion 70. In such a configuration, the strength of the upper stud member 100 within the range of the connecting portion 70 can be increased. 【0020】 The connecting member 300 can be manufactured using any material, but it is more advantageous to manufacture it from commercially available runners used as the upper runner 20, lower runner 30, etc., as this reduces manufacturing costs. 【0021】 The upper runner 20, lower runner 30, upper stud member 100, and lower stud member 200 may be, for example, products conforming to JIS standards, products manufactured from products conforming to JIS standards, or products conforming to each manufacturer's own standards, or products manufactured from such products. By using existing standard products, the variable-length stud unit 10 can be provided to the user at a lower cost. 【0022】 Figure 2(a) is a perspective view showing an example of the connecting portion 70 of the variable-length stud unit 10 before sliding. The connecting member 300 is positioned to overlap the area including the lower end portion 101 of the upper stud member 100 and the area including the upper end portion 202 of the lower stud member 200. 【0023】 In the connecting portion 70 shown in Figure 2(a), the upper stud member 100 is slidably positioned within the connecting member 300, for example, in the vertical direction (up and down direction) when the variable-length stud unit 10 is installed at a construction site, in a direction in which the distance between it and the lower stud member 200 changes, while in contact with the connecting member 300. The term "sliding" may be replaced with "movement" or "shift." 【0024】Furthermore, the area including the upper end 202 of the lower stud member 200 may be fixed to the area including the lower end 301 of the connecting member 300. For example, the upper end 202 of the lower stud member 200 can be fixed to the area including the lower end 301 of the connecting member 300 using screws or adhesive, or by means of welding or brazing. In this case, the connecting member 300 and the lower stud member 200 may be configured as an integral part or inseparable. 【0025】 In the following description, we will mainly describe a configuration in which the upper stud member 100 of the variable-length stud unit 10 is slidable relative to the connecting member 300, but the lower stud member 200 of the variable-length stud unit 10 may also be slidable relative to the connecting member 300. 【0026】 The variable-length stud unit 10 has a temporary fastening member 400, which is a fastener for temporarily securing the upper stud member 100 to the connecting member 300. The temporary fastening member 400 is made up of, for example, a wing bolt, nut, washer, etc. 【0027】 The upper stud member 100 has a stud base plate portion 110 and a first stud side plate portion 120 and a second stud side plate portion 130 that rise perpendicularly from the left and right sides of the stud base plate portion 110 in the same direction. The stud base plate portion 110 is an example of a side wall. 【0028】 Furthermore, the stud base plate portion 110 has a stud opening 150, which is an opening region into which the temporary fastening member 400 is inserted. The stud opening 150 is an example of a first opening. 【0029】 The lower stud member 200 has a stud base portion 210 and a first side plate portion 220 and a second side plate portion 230 that rise perpendicularly from the left and right sides of the stud base portion 210 in the same direction. The stud base portion 210 is an example of a side wall. The upper stud member 100 and the lower stud member 200 may each be, for example, obtained by cutting a single stud. 【0030】The connecting member 300 has a connecting base plate portion 310 and a first connecting side plate portion 320 and a second connecting side plate portion 330 that rise perpendicularly from the left and right sides of the connecting base plate portion 310 in the same direction. The connecting base plate portion 310 is an example of a side wall. 【0031】 Furthermore, the connecting substrate portion 310 has a connecting opening 350, which is an opening region into which the temporary fixing member 400 is inserted. The connecting opening 350 is formed, for example, extending in the short direction of the connecting member 300. 【0032】 The connection opening 350 is an example of a second opening. The connection opening 350 may be formed in any area of ​​the connection substrate portion 310 of the connecting member 300, but it is more advantageous if it is formed in a region between the vicinity of the center and one of the ends, for example, the region between the vicinity of the center and the upper end portion 302. The specific design of the connecting member 300 and the connection opening 350 will be described later. 【0033】 The stud opening 150 and the connecting opening 350 have different shapes. When the connecting base plate portion 310 of the connecting member 300 and the stud base plate portion 110 of the upper stud member 100 are superimposed, the stud opening 150 and the connecting opening 350 partially overlap within the range of the connecting portion 70, forming an opening region. 【0034】 When the temporary fastening member 400 is inserted into the opening region formed by the overlapping of the stud opening 150 and the connecting opening 350, the upper stud member 100 can be temporarily fastened to the connecting member 300 based on the shapes of the stud opening 150 and the connecting opening 350, and the frictional force and fastening force generated by the temporary fastening member 400. 【0035】 To summarize, the following is true: The variable-length stud unit 10 includes an upper stud member 100 having a stud opening 150 in a stud base plate portion 110, a connecting member 300 having a connecting opening 350 in a connecting base plate portion 310, and a temporary fixing member 400 that is inserted into the stud opening 150 and the connecting opening 350 to temporarily fix the upper stud member 100 to the connecting member 300, wherein the upper stud member 100 is configured to slide longitudinally relative to the connecting member 300. 【0036】In the variable-length stud unit 10, the stud opening 150 and the connection opening 350 have different shapes. When the connection base portion 310 of the connecting member 300 and the stud base portion 110 of the upper stud member 100 are superimposed, the stud opening 150 and the connection opening 350 form a partially overlapping opening region. The temporary fixing member 400 is inserted into this opening region to temporarily fix the upper stud member 100 to the connecting member 300 in a way that prevents it from sliding in the longitudinal direction. 【0037】 The variable-length stud unit 10 further comprises a lower stud member 200 to which a connecting member 300 is fixed or to which a connecting member 300 is to be fixed. 【0038】 Let's return to the explanation of Figure 2. For example, as shown in Figures 2(a) and 2(c), the stud opening 150 has an opening that extends in the longitudinal direction, an opening that extends in one of the short directions at the upper end of the opening that extends in the longitudinal direction, and an opening that extends in the other short direction at the lower end of the opening that extends in the longitudinal direction. 【0039】 In another configuration, the stud opening 150 may have only an opening that extends in the longitudinal direction. In yet another configuration, in addition to the opening that extends in the longitudinal direction, the stud opening 150 may have either an opening that extends in one of the short directions at the upper end of the opening that extends in the longitudinal direction, or an opening that extends in the other short direction at the lower end of the opening that extends in the longitudinal direction. 【0040】 In Figure 2(a), the temporary fastening member 400 is inserted into the opening region formed by the stud opening 150 and the connecting opening 350. Furthermore, in Figure 2(a), the temporary fastening member 400 is located approximately in the center of the connecting opening 350 and in the opening that extends in the longitudinal direction of the stud opening 150. 【0041】 When the temporary fastening member 400 inserted into the opening is located at the position of the opening extending in the longitudinal direction of the upper stud member 100, the upper stud member 100 can be slid, for example, by a worker in the direction of the arrow in Figure 2(a). 【0042】Figure 2(b) is a perspective view showing an example of the connecting portion 70 of the variable-length stud unit 10 after sliding. In this figure, the upper stud member 100 is positioned above the state shown in Fig. 2(a), for example, by a sliding (moving) operation by an operator. 【0043】 Furthermore, in Fig. 2(b), the temporary fixing member 400 is located at the right end position of the connection opening 350 and at the right end position of the opening extending in the short direction of the stud opening 150. 【0044】 In the variable-length stud unit 10 in the state of Fig. 2(b), the temporary fixing member 400 can restrict or suppress the sliding of the upper stud member 100 in the vertical direction (up and down direction) based on contact with the connection opening 350 and the stud opening 150. 【0045】 In this specification, restricting or suppressing sliding may be expressed as "non-slidable". The expression "non-slidable" also includes restricting or suppressing sliding within a predetermined range caused by, for example, manufacturing tolerances of members. 【0046】 In particular, the temporary fixing member 400 can restrict or suppress the downward movement of the upper stud member 100 due to gravity based on contact with the lower side (lower contour portion) of the connection opening 350 and the upper side (upper contour portion) of the stud opening 150. 【0047】 Therefore, for example, even if an operator releases the hand that slid the upper stud member 100 with respect to the lower stud member 200 or the connecting member 300 for length adjustment from the upper stud member 100, the variable-length stud unit 10 can maintain the state after length adjustment. 【0048】 In this way, in the variable-length stud unit 10, for example, after sliding the upper stud member 100 in the vertically upward direction (toward the ceiling 2), the sliding of the upper stud member 100 with respect to the connecting member 300 can be restricted or suppressed using the temporary fixing member 400 inserted into the stud opening 150 and the connection opening 350. 【0049】For example, the stud opening 150 may be formed in an L-shape. In such a configuration, as described above, the sliding of the upper stud member 100 can be limited or suppressed by pulling up the upper stud member 100 until the temporary fixing member 400 contacts the lower end in the longitudinal direction of the stud opening 150, and then moving the inserted temporary fixing member 400 to the right in the short direction. 【0050】 In the variable-length stud unit 10 shown in Figure 2(b), the upper stud member 100 is temporarily fixed in a position that is raised by a distance d compared to Figure 2(a). This allows the worker to select which of two different stud lengths, differing by a distance d, to insert into the upper runner 20 when fitting the variable-length stud unit 10. 【0051】 Ignoring the dimensions of the temporary fastening member 400, for example, the bolt diameter of the wing bolt, the length d shown in Figure 2(b) corresponds to the length of the opening extending in the longitudinal direction of the stud opening 150. 【0052】 Therefore, it becomes easier to address variations in height between the floor and ceiling due to unevenness in the floor surface, for example, or more specifically, variations in height between the upper runner 20 and the lower runner 30, without requiring on-site height adjustment work that would otherwise require processing using tools such as cutters. The stud material is made from metal, wood, synthetic resin, etc., or a combination thereof. In particular, cutting LGS (Light Gauge Steel) involves the generation of sparks, dust, and noise, for example, so being able to avoid such work is advantageous in terms of safety during work, dust reduction, and noise reduction. 【0053】 Figure 2(c) is an example of an exploded view of the connecting portion 70 of the variable-length stud unit 10 before sliding. In the exploded view of Figure 2(c), the upper stud member 100, the lower stud member 200, and the connecting member 300 are shown in perspective views. A temporary fixing member 400 is inserted into the connecting opening 350 of the connecting member 300. 【0054】In one example, the variable-length stud unit 10 can be transported to the construction site with its individual components separated. In another example, the variable-length stud unit 10 can be transported to the construction site with its individual components connected to one another. 【0055】 In yet another example, the variable-length stud unit 10 can be transported to the construction site with the upper stud member 100 and the integrally fixed lower stud member 200 and connecting member 300 separated. 【0056】 The seller of the variable-length stud unit 10 can output information to the user on the order screen of the e-commerce site, for example, in the form of which of the above conditions the variable-length stud unit 10 should be delivered to the site, such as a list of options. 【0057】 Figure 3(a) shows an example of the positional relationship between the upper end portion 102 of the upper stud member 100 and the upper runner 20 before sliding. Figure 3(a) is a view of the upper stud member 100 and the upper runner 20 along the longitudinal direction of the upper runner 20. 【0058】 The figure shows, for example, the case where the lower end 101 of the upper stud member 100 and the upper end 202 of the lower stud member 200 are in contact (for example, the state shown in Figure 2(a)), and the height (length in the longitudinal direction) of the variable-length stud unit 10 has not reached a height that allows the upper end 102 of the upper stud member 100 to be fitted into the upper runner 20. 【0059】 Figure 3(b) shows an example of the positional relationship between the upper end portion 102 of the upper stud member 100 and the upper runner 20 after sliding. Figure 3(b) is a view of the upper stud member 100 and the upper runner 20 along the longitudinal direction of the upper runner 20, similar to Figure 3(a). 【0060】Figure 3(b) shows the case where the upper stud member 100 is pulled up by the sliding of the upper stud member 100 (for example, the state shown in Figure 2(b)), and the height (length in the longitudinal direction) of the variable-length stud unit 10 has reached a height at which the upper end portion 102 of the upper stud member 100 can be fitted into the upper runner 20. 【0061】 In Figure 3(b), the upper stud member 100 has been moved upward by a length d compared to its position in Figure 3(a). Length d corresponds to the length of the opening extending in the longitudinal direction of the stud opening 150, as explained using Figure 2. 【0062】 The configuration of wall structure 1 will be explained in more detail below. Figure 4 is an example of a cross-sectional view along line A-A in Figure 1(a). 【0063】 Figure 4 shows a cross-section of a wall section, such as a partition wall, created using variable-length stud units 10 (10A to 10E). As will be described later, the variable-length stud units 10 (10A to 10E) can be adjusted in length so that each has a different length. 【0064】 The first stud side plate portion 120 and the second stud side plate portion 130 of the upper stud member 100 are each bent inward toward the stud base plate portion 110 at their ends. The lower stud member 200 can be formed in the same manner. 【0065】 The above configuration of the upper stud member 100 and the lower stud member 200 is just one example. The upper stud member 100 and the lower stud member 200 may each be set to different dimensions. For example, the longitudinal lengths of the upper stud member 100 and the lower stud member 200 may be different. 【0066】The seller of the variable-length stud unit 10 can, for example, output information to the user on the ordering screen of an e-commerce site for the variable-length stud unit 10 to be used at a predetermined length, regarding sets of upper stud members 100 and lower stud members 200 of different dimensions, for example, as a list of options (combinations of upper stud members 100 and lower stud members 200 of different lengths). 【0067】 The operating server (computer) of the e-commerce site, which is operated and managed by the seller of the variable-length stud unit 10, can use information contained in, for example, a 3D model of the target building, such as a BIM model, to acquire and calculate information related to the "predetermined length" mentioned above. 【0068】 For example, the operating server can obtain or calculate a "predetermined length" based on information such as the length from the floor to the ceiling included in the BIM model, or the dimensions of the runners used. 【0069】 For example, if the predetermined length is 2700 mm, the operating server can output to the user a list of available options, such as multiple different sets of upper stud members 100 and lower stud members 200 with different dimensions, such as upper stud member 100 length : lower stud member 200 length, 1000:1700, 1100:1600, 1200:1500, etc. This allows the user to select a set that is easier for, for example, on-site workers, thereby improving on-site work efficiency. 【0070】 The operating server can change the content displayed in the list of options based on information such as the height of craftsmen who are already working with BIM models, if that information is already included. 【0071】 For example, if the (average) height of the craftsman performing the work is tall, a set with a longer lower stud member 200, such as a set with an upper stud member 100mm of 1000mm and a lower stud member 200mm of 1700mm, can be displayed preferentially compared to a set with a shorter height. 【0072】 Conversely, if the (average) height of the workers performing the work is short, a set with a shorter lower stud member 200, for example, a set with an upper stud member 100 of 1200 mm and a lower stud member 200 of 1500 mm, can be displayed preferentially compared to a set with a taller worker. 【0073】 Figure 5(a) is an example of a detailed view of the upper stud member 100 and lower stud member 200 of the connecting portion 70 of the variable-length stud unit 10. As shown in the figure, a branch-shaped stud opening 150 is formed in the stud base portion 110 of the upper stud member 100. The stud base portion 210 of the lower stud member 200 is marked with plus signs (261-264) indicating the positions for screw fastening. 【0074】 The stud opening 150 has a longitudinal stud opening 151 in the longitudinal direction and a plurality of short stud openings 152, 154, 156, 158 that extend in the short direction and communicate with the longitudinal stud opening 151. The longitudinal stud opening 151 is an example of a first longitudinal opening. The short stud openings 152, 154, 156, 158 are examples of first short openings and second short openings. 【0075】 In the variable-length stud unit 10, the stud opening 150 has a longitudinal stud opening 151 that extends in the longitudinal direction of the upper stud member 100, and the upper stud member 100 is slidable in the longitudinal direction relative to the connecting member 300 when the temporary fastening member 400 is inserted into the connecting opening 350 and the longitudinal stud opening 151. 【0076】 In the variable-length stud unit 10, the stud opening 150 communicates with the longitudinal stud opening 151 and has stud short openings 152, 154, 156, and 158 that extend in the short direction of the upper stud member 100. The upper stud member 100 is temporarily fixed to the connecting member 300 so as not to slide in the longitudinal direction when the temporary fixing member 400 is inserted into the connecting opening 350 and the stud short openings 152, 154, 156, and 158. 【0077】In the variable-length stud unit 10, the stud opening 150 has other stud short openings 154, 156, and 158 that extend in the short direction and communicate with a portion of the stud longitudinal opening 151 that is different from, for example, the stud short opening 152. The upper stud member 100 is temporarily fixed to the connecting member 300 so as not to slide in the longitudinal direction when the temporary fixing member 400 is inserted into the connecting opening 350 and the other stud short openings 154, 156, and 158. 【0078】 Furthermore, the stud opening 150 has end openings 162, 164, 166, and 168 that extend in the longitudinal direction and communicate with each of the stud short-side openings 152, 154, 156, and 158. The end openings 162, 164, 166, and 168 are examples of second longitudinal openings. 【0079】 In the variable-length stud unit 10, the stud opening 150 communicates with the short stud openings 152, 154, 156, 158 and further has end openings 162, 164, 166, 168 extending in the longitudinal direction, and the upper stud member 100 is slidable in the longitudinal direction relative to the connecting member 300 when the temporary fixing member 400 is inserted into the connecting opening 350 and the end openings 162, 164, 166, 168. 【0080】 As shown in Figure 5(a), the short stud openings 152, 154, 156, and 158 are formed in the longitudinal direction of the upper stud member 100 at intervals of, for example, 10 mm to 15 mm. 【0081】 This allows, for example, a worker to discretely adjust the length of the variable-length stud unit 10 in increments of 10 mm to 15 mm when adjusting its length. As a result, even when a worker installs the variable-length stud unit 10 alone, they can easily perform adjustments at predetermined intervals. 【0082】 When adjusting the length of a variable-length stud unit 10 having an upper stud member 100 with a branch-shaped stud opening 150 as shown in Figure 5(a), the worker can adjust the length by sliding, as explained with reference to Figure 2. 【0083】 For example, a worker grasps the upper stud member 100 and fits at least a portion of the upper stud member 100 into the upper runner 20, and then adjusts the length of the variable-length stud unit 10 until at least a portion of the lower stud member 200 fits into the lower runner 30. 【0084】 Subsequently, with the upper stud member 100 and the lower stud member 200 fitted into the upper runner 20 and the lower runner 30 respectively, the temporary fastening member 400 is moved in the shorter direction to one of the stud short-side openings 152, 154, 156, or 158. In the following description, it is assumed that the temporary fastening member 400 has been moved to the stud short-side opening 152. 【0085】 In this state, the temporary fixing member 400 restricts or suppresses the longitudinal movement of the upper stud member 100 and the lower stud member 200 relative to each other based on contact with the stud short opening 152 and the connecting opening 350. 【0086】 The worker can move the temporary fastening member 400 to the short end of the stud short opening 152. In this state, for example, if the worker releases their hand from the upper stud member 100 while the lower stud member 200 is in contact with the lower runner 30, the upper stud member 100 will move downward by the length of the end opening 162 due to its own weight, and the temporary fastening member 400 will move toward the end opening 162 accordingly. 【0087】 In this state, the temporary fixing member 400 restricts or suppresses the movement of the upper stud member 100 and the lower stud member 200 relative to each other in the longitudinal and transverse directions based on contact with the end opening 162 and the connecting opening 350. 【0088】 Figure 5(b) is an example of a detailed view of the connecting base plate portion 310 of the connecting member 300. A connecting opening 350 is formed above the longitudinal center of the connecting base plate portion 310 of the connecting member 300. 【0089】The lower part of the connecting substrate 310 is marked with plus signs (361-364) indicating the positions for screw fastening. The plus signs (361-364) on the connecting substrate 310 are positioned to overlap with the plus signs (261-264) on the lower stud member 200 when the connecting member 300 is fixedly attached to the lower stud member 200. 【0090】 Furthermore, on the upper part of the connecting substrate 310, a group of "+" marks (312) are indicated at candidate positions for the final fixing position, for example, at intervals of 10 mm to 15 mm in the longitudinal direction. The final fixing position is the position where the upper stud member 100 and the connecting member 300 are fixed to each other at the length when the variable-length stud unit 10 is installed. 【0091】 At the connecting portion 70 of the variable-length stud unit 10, the connecting base plate portion 310 and the stud base plate portion 110 overlap, and the stud opening 150 and the connecting opening 350 overlap each other, forming an opening region. Using the temporary fastening member 400 inserted into this opening region, workers can easily adjust the length of the variable-length stud unit 10 and perform temporary fastening. 【0092】 With the area including the lower end 301 of the connecting substrate portion 310 overlapping the stud substrate portion 210, the worker can screw the lower stud member 200 and the connecting member 300 together at a position where the + marks (361-364) on the connecting substrate portion 310 and the + marks (261-264) on the stud substrate portion 210 roughly overlap. 【0093】 When workers fix the lower stud member 200 and the connecting member 300 at a construction site, the length of the variable-length stud unit 10 in the longitudinal direction can be adjusted more flexibly by adjusting the fixing positions of both. 【0094】The length of the connecting opening 350 in the short direction of the connecting member 300 is preferably approximately the same as the length of the stud opening 150 in the short direction of the upper stud member 100. Alternatively, the length of the connecting opening 350 in the short direction of the connecting member 300 is preferably approximately twice the length of the short stud openings 152, 154, 156, and 158 in the short direction of the upper stud member 100, as this allows for uniform strength of the connecting member 300 in the area including the connecting opening 350. Approximately twice the length of the short stud openings 152, 154, 156, and 158 in the short direction of the upper stud member 100 is an example of the length of the first opening in the short direction of the first stud member. 【0095】 In other words, in the variable-length stud unit 10, the length of the stud opening 150 in the short direction of the upper stud member 100 and the length of the connection opening 350 in the short direction of the connecting member 300 are approximately the same. 【0096】 In such a configuration, the positions of the end of the connecting opening 350 and the ends of the respective stud short-side openings 152, 154, 156, and 158 are approximate. This makes it easier to move the temporary fastening member 400 to the end of the opening in the short-side direction. 【0097】 In this embodiment, with the upper stud member 100 temporarily fixed to the connecting member 300 by the temporary fixing member 400, the worker installing the variable-length stud unit 10 can permanently fix the upper stud member 100 to the connecting member 300 using the permanent fixing member 500. The permanent fixing member 500 is, for example, a screw. 【0098】 In other words, the variable-length stud unit 10 further includes a final fixing member 500 for permanently fixing the upper stud member 100 to the connecting member 300 when the upper stud member 100 is temporarily fixed to the connecting member 300 by the temporary fixing member 400. 【0099】Figure 6(a) is an example of an elevation detail view of the connecting portion 70 of a variable-length stud unit 10 after temporary and permanent fastening. In Figure 6(a), the upper stud member 100, which is temporarily fastened to the connecting member 300 using a temporary fastening member 400, is permanently fastened to the connecting member 300 by a permanent fastening member 500. 【0100】 Figure 6(b) is an example of a detailed side view of the connecting portion 70 of the variable-length stud unit 10 after temporary and permanent fastening. In Figure 6(b), the connecting member 300 is permanently fastened to the upper stud member 100 and the lower stud member 200 at permanent fastening positions 371 to 378. 【0101】 Figures 6(a) and 6(b) illustrate the dimensions of each part with double arrows. The unit of each value with a double arrow is mm. For example, the final fastening positions 371 to 378 of the upper stud member 100 are located approximately 85 mm apart from each other in the longitudinal direction of the upper stud member 100, and approximately 30 mm apart from each other in the short direction of the upper stud member 100. 【0102】 Figure 6(b) shows, for example, the state in which the upper stud member 100, which was temporarily fixed to the connecting member 300 using temporary fixing members 400 inserted into the connecting opening 350 and the end opening 166, is permanently fixed to the upper stud member 100 at the permanent fixing positions 371 to 374. 【0103】 The following describes further modifications of this embodiment. [Modification 1] Figure 7(a) is an example of a second detailed view of the upper stud member 100 and lower stud member 200 of the connecting portion 70 of the variable-length stud unit 10. In this figure, a stud opening 760 (150) is shown as a modification of the branch-shaped stud opening 150 formed in the stud base plate portion 110. 【0104】 The stud opening 760 has a longitudinal stud opening 761 in the longitudinal direction and stud step-shaped openings 762, 764, 766, 768, and 770 that communicate with the longitudinal stud opening 761 and extend while bending alternately in the short and long directions. 【0105】Each of the stud-stepped openings 762, 764, 766, 768, and 770 is arranged in the longitudinal direction of the upper stud member 100 at intervals of, for example, 10 to 15 mm or less. By setting the longitudinal length of each step of the stud-stepped openings 762, 764, 766, 768, and 77 to be shorter than the above-mentioned interval of 10 to 15 mm or less in which the stud-stepped openings 762, 764, 766, 768, and 77 are arranged, the variable-length stud unit 10 can be adjusted in finer increments. 【0106】 The temporary fixing member 400 is inserted into the stud step-shaped openings 762, 764, 766, 768, and 770, and moves in the short and long directions within the stud step-shaped openings 762, 764, 766, 768, and 770, making it possible to adjust the height of the variable-length stud unit 10 by sliding the upper stud member 100 in a finer and more multi-stage manner. 【0107】 Figure 7(b) is an example of a second detailed view of the connecting substrate portion 310 of the connecting member 300. A connecting opening 750 (350) is formed in the connecting substrate portion 310. In addition, a group of + marks 765 (312) are indicated on the connecting substrate portion 310 at positions that are candidates for the final fastening position. 【0108】 This configuration allows, for example, a worker installing the variable-length stud unit 10 to use the group of + marks 765 to more precisely determine the final fastening position. 【0109】 [Modification 2] Figure 8(a) is an example of a third detailed view of the upper stud member 100 and the lower stud member 200 of the connecting portion 70 of the variable-length stud unit 10. In this modification 2, the variable-length stud unit 10 is configured such that the area including the lower end portion 101 of the upper stud member 100 is fixed to the connecting member 300, and the lower stud member 200 is configured to be slidable relative to the connecting member 300. 【0110】The stud base portion 210 of the lower stud member 200 has a branch-shaped stud opening 850 (150). This stud opening 850 has a longitudinal stud opening 851 that extends in the longitudinal direction. Furthermore, the stud opening 850 has transverse stud openings 852, 854, 856, 858, and 860 that communicate with the longitudinal stud opening 851 and extend in the transverse direction. 【0111】 Furthermore, the stud opening 850 has end openings 862, 864, 866, 868, and 870 that communicate with the respective short stud openings 852, 854, 856, 858, and 860 and extend downward in the longitudinal direction. 【0112】 The stud short-side openings 852, 854, 856, 858, and 860 are formed along the longitudinal direction of the upper stud member 100 at intervals of, for example, 10 mm to 15 mm. This allows, for example, when a worker adjusts the length of the variable-length stud unit 10, the length to be adjusted discretely in steps of 10 mm to 15 mm. 【0113】 Figure 8(b) is an example of a third detailed view of the connecting base plate portion 310 of the connecting member 300. In the modified example 2, the connecting opening 880 (350) is formed in a range below the longitudinal center of the connecting base plate portion 310 of the connecting member 300. In addition, in the range below the longitudinal center of the connecting base plate portion 310, plus signs are indicated at candidate positions for the final fastening at intervals of, for example, 10 mm to 15 mm in the longitudinal direction. 【0114】 Figure 9(a) is an example of a design drawing showing the shape and dimensions of the stud opening 150. Figure 9(b) is another example of a design drawing showing the shape and dimensions of the stud opening 150. The numerical values ​​shown in Figures 9(a) and 9(b) are examples only, and Figures 9(a) and 9(b) do not limit the shape and dimensions of the stud opening 150. 【0115】 The units of the numerical values ​​shown in Figures 9(a) and 9(b) are in millimeters. In Figures 9(a) and 9(b), the longitudinal and transverse centerlines of the stud longitudinal opening and stud transverse opening of the stud opening 150 are shown. 【0116】In Figure 9(a), the short stud openings of the stud opening 150 are formed at 15 mm intervals. In such a configuration, a worker can adjust the length of the variable-length stud unit 10 in 15 mm increments. 【0117】 In Figure 9(b), the short stud openings of the stud opening 150 are formed at 10 mm intervals. In such a configuration, the worker can adjust the length of the variable-length stud unit 10 in 10 mm increments. 【0118】 Figures 10(a) to 10(d) are explanatory diagrams showing examples of variations of the stud opening 150. In Figures 10(a) to 10(d), stud openings 1010, 1020, 1030, and 1040 are shown as variations of the stud opening 150. 【0119】 In the stud opening 1010 shown in Figure 10(a), the upper and lower ends of the longitudinal stud opening 1011 are connected to the short stud openings 1012 and 1013, which extend to both the left and right sides, respectively. 【0120】 In a variable-length stud unit 10 provided with a stud opening 1010, a worker can slide the temporary fastening member 400 to either the left or right to restrict the longitudinal movement of the upper stud member 100. This reduces the inconvenience experienced by workers due to the temporary fastening member 400 only being able to slide in one direction during temporary fastening, which can be related to factors such as their dominant hand or habits. 【0121】 In the stud opening 1020 of Figure 10(b), a stud short opening 1022 extending to the left is connected to the lower end of the stud longitudinal opening 1021, and a stud short opening 1023 extending to the right is connected to the upper end of the stud longitudinal opening 1021. Second stud longitudinal openings 1024 and 1025 extending in the vertical direction are connected to the stud short openings 1022 and 1023, respectively. 【0122】In a variable-length stud unit 10 provided with a stud opening 1020, if a worker slides the temporary fastening member 400 in the left-right direction and then releases their hand from the upper stud member 100, the temporary fastening member 400 comes into contact with the upper end contour of the second stud longitudinal openings 1024, 1025, thereby restricting or suppressing the downward movement of the upper stud member 100. 【0123】 Conversely, if a worker slides the temporary fastening member 400 in the left-right direction and then releases their hand from the lower stud member 200, the temporary fastening member 400 will come into contact with the lower end contour of the second stud longitudinal openings 1024, 1025, thereby restricting or suppressing the downward movement of the lower stud member 200. 【0124】 Therefore, in a variable-length stud unit 10 provided with a stud opening 1020, when a worker releases their hand from either the upper stud member 100 or the lower stud member 200 during length adjustment, the second stud longitudinal openings 1024 and 1025 can perform the function of limiting or suppressing the longitudinal movement of the upper stud member 100 and the lower stud member 200. 【0125】 The stud opening 1030 in Figure 10(c) is a variation that allows for more precise length adjustment than the stud opening 1020 in Figure 10(b). The configuration and function of the short stud openings 1032a to 1032c, 1033a to 1033b and the second long stud openings 1034a to 1034c, 1035a to 1035b are the same as those of the short stud openings 1022, 1023 and the second long stud openings 1024, 1025 described above, so their explanation is omitted. 【0126】 In the stud opening 1040 of Figure 10(d), the stud longitudinal opening 1041 is connected to the stud short openings 1042a to 1042d, which extend to the right. The stud short openings 1042a to 1042d are each connected to the second stud longitudinal openings 1044a to 1044d, which extend upward. 【0127】In a variable-length stud unit 10 provided with a stud opening 1040, when a worker temporarily fastens the variable-length stud unit 10 to adjust its length, they only need to slide the temporary fastening member 400 to one side (the right side). Therefore, a worker can easily temporarily fasten the stud by, for example, pressing the temporary fastening member 400 to the right with their finger while sliding the upper stud member 100 against the connecting member 300. 【0128】 Furthermore, in the stud opening 1040 shown in Figure 10(d), the lengths of the stud short openings 1042a to 1042d are different, so it is possible to avoid the concentration of voids in only a specific range of the upper stud member 100. 【0129】 Figure 11 is an example of an explanatory diagram illustrating the reinforcing member 1100. The reinforcing member 1100 shown in Figure 11 contacts the upper stud member 100 from the inside. In Figure 11, the temporary fastening member 400 consists of a wing bolt 401, spring washers 402a and 402b, flat washers 403a and 403b, and a nut 404. 【0130】 The wing bolt 401 is installed by passing through the connection opening 350 of the connecting member 300, the stud opening 150 of the upper stud member 100, and the reinforcing member opening 1150 of the reinforcing member 1100. 【0131】 By fastening the temporary fastening member 400, the upper stud member 100 is sandwiched from the outside by the connecting member 300 and from the inside by the reinforcing member 1100. The temporary fastening member 400 can be fastened, for example, by a worker with one hand. The wing bolt 401 is an example of a member (bolt) that enables one-handed fastening by a worker. By additionally using the reinforcing member 1100, the strength reduced by the void in the stud opening 150 can be compensated for. 【0132】The reinforcing member 1100 may be made of the same material as the upper stud member 100, but if it is made of a composite material such as plastic, it is advantageous in terms of weight and cost. In another example, if the reinforcing member 1100 is made of a material with higher strength than the upper stud member 100, it is desirable that the strength of the area of ​​the connecting portion 70 be further increased. 【0133】 Figure 12(a) is an example of an explanatory diagram illustrating construction at an actual construction site. In Figure 12(a), the studs to be installed between the upper runner 20 attached to the ceiling 2 and the lower runner 30 attached to the floor 3 are shown with dashed lines. 【0134】 In actual construction sites, variations in the concrete surface, such as unevenness on a millimeter-scale, and differences in the relationship with beams, result in variations in the height between the ceiling 2 (upper runner 20) and the floor 3 (lower runner 30). 【0135】 Figure 12(a) shows the height values ​​for each planned stud installation location (from left to right: 2715, 2711, 2708, 2704, 2703, 2701, 2700, 2697, 2693, 2690, 2685, 2680). The unit of the height values ​​is mm. 【0136】 For example, if the variation absorption range for the upper runner 20 and lower runner 30 used is -10 mm to +10 mm, then if the studs do not have a height adjustment function, then 2720 mm studs must be supplied for use in Group A. Similarly, 2700 mm studs must be supplied for use in Group B, and 2680 mm studs must be supplied for use in Group C. 【0137】Such grouping places a significant burden on on-site work and storage space. If studs are not grouped and, for example, a sufficient length is used all at once, they must be cut to the appropriate length each time. However, cutting studs on a construction site involves sparks and other issues, posing a safety problem. Furthermore, stud cutting also generates dust and noise, so it is desirable to avoid cutting studs on-site. 【0138】 To avoid on-site cutting, it is possible to use studs that are too short to require cutting. However, this would necessitate the use of individual spacers, which presents problems in terms of workload. 【0139】 Figure 12(b) is an example of an explanatory diagram illustrating a wall structure 1 installed using a variable-length stud unit 10. By using the variable-length stud unit 10, even if there is variation in the height between the ceiling 2 (upper runner 20) and the floor 3 (lower runner 30), as shown in Figure 12(a), the variable-length stud unit 10 can be installed without the need for cutting or using spacers. 【0140】 As previously described, when adjusting the length (height) of the variable-length stud unit 10 between the upper runner 20 and the lower runner 30, it is possible to release at least one hand while maintaining the length (height) determined by temporary fixing using the temporary fixing member. 【0141】 Therefore, the worker can use an impact driver or similar tool with their free hand to perform the final fixing of the upper stud member 100 and connecting member 300, which are in a temporarily fixed state. In this way, the ability for one worker to perform everything from height adjustment to final fixing is extremely advantageous in terms of time, workload, and the number of workers required. 【0142】It should be noted that this technology is not limited to the embodiments described above, and includes various modifications. For example, the embodiments described above are described in detail for the purpose of explaining this technology in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace parts of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add configurations from other embodiments to the configuration of one embodiment. In addition, it is possible to add, delete, or replace parts of the configuration of each embodiment with other configurations. 【0143】 1...Wall structure, 10...Variable length stud unit, 20...Upper runner, 30...Lower runner, 100...Upper stud, 150...Stud opening, 200...Lower stud, 300...Connecting member, 350...Connecting opening, 400...Temporary fastening member

Claims

1. A variable-length stud comprising: a first stud member having a first opening in its side wall; a connecting member having a second opening in its side wall; and a temporary fixing member inserted into the first and second openings to temporarily fix the first stud member to the connecting member, wherein the first stud member is configured to be slidable relative to the connecting member.

2. The variable-length stud according to claim 1, wherein the first opening and the second opening have different shapes, and when the side wall of the connecting member and the side wall of the first stud member are superimposed, they form a partially overlapping opening region, and the temporary fixing member is inserted into the opening region to temporarily fix the first stud member to the connecting member.

3. The variable-length stud according to claim 1, wherein the first opening has a first longitudinal opening extending in the longitudinal direction of the first stud member, and the first stud member is slidable with respect to the connecting member when the temporary fastening member is inserted into the second opening and the first longitudinal opening.

4. The variable-length stud according to claim 3, wherein the first opening communicates with the first longitudinal opening and has a first short opening extending in the short direction of the first stud member, and the first stud member is temporarily fixed to the connecting member so as not to slide when the temporary fixing member is inserted into the second opening and the first short opening.

5. The variable-length stud according to claim 4, wherein the first opening has a second short opening that communicates with a portion of the first longitudinal opening different from the first short opening and extends in the short direction, and the first stud member is temporarily fixed to the connecting member so as not to slide when the temporary fixing member is inserted into the second opening and the second short opening.

6. The variable-length stud according to claim 5, wherein the first opening further has a second longitudinal opening that communicates with the first short opening and extends in the longitudinal direction, and the first stud member is slidable with respect to the connecting member when the temporary fastening member is inserted into the second opening and the second longitudinal opening.

7. The variable-length stud according to claim 1, wherein the length of the first opening of the first stud member in the short direction and the length of the second opening of the connecting member in the short direction are substantially the same.

8. The variable-length stud according to claim 1, further comprising a permanent fastening member for permanently fastening the first stud member to the connecting member when the first stud member is temporarily fastened to the connecting member by the temporary fastening member.

9. The variable-length stud according to claim 1, further comprising a second stud member to which the connecting member is fixed or to which the connecting member is fixed.

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