JP2011074741A - Stair assembling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a stair to be easily assembled even by an unskilled person by enabling the stair to be assembled at a place other than a construction site. <P>SOLUTION: A plurality of support members 10 (10A, 10B) are disposed on the middle stage frame part 2a of a frame 2. The dimension of the width of the frame 2 matches the lateral width of a stair to be assembled, and the length of the frame 2 matches the number of steps of the stair to be assembled. Six pair support parts comprising pairs of support members 10, 10 are disposed on the frame 2. The support members 10 support the treads and kick plates which are the members constituting the stair, respectively. Each support member 10A is installed so that the position is fixed but the angle can be adjusted, and each support member 10B is installed so that both the position and the angle can be adjusted. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a staircase assembly apparatus for assembling a staircase of a house.

  When building a prefabricated house, building elements such as walls, roofs, and floors are manufactured in advance in a factory, and work for assembling these building elements at a construction site is performed. The same applies to the stairs, and a tread board, a kick board, a side board, and the like are manufactured in advance at the factory, and an operation of assembling these stairs elements on the site is performed (see Patent Document 1).

JP-A-11-190114

  However, assembling work of building elements at a construction site is required to reduce this as much as possible to shorten the construction period. There is also a desire to make it possible for even unskilled persons to easily assemble stairs.

  An object of the present invention is to make it possible to assemble stairs even outside a construction site, and to make this stairs assembly easy even for an unskilled person.

  In order to solve the above-described problem, the stair assembly device according to the present invention includes a tread plate support surface and a support member having a kick plate support surface that respectively support a tread plate and a kick plate that are members constituting the staircase. A plurality of paired support portions having a pair corresponding to each other is arranged on the gantry at intervals corresponding to the step pitch.

  With the above configuration, the tread plate that is a member constituting the stairs is disposed on the tread plate support surface of the support member, and the kick plate that is the member constituting the stairs is disposed on the kick plate support surface of the support member. For example, by adhering these members with an adhesive, the stairs are assembled.

  In the above-described configuration, it is preferable that each support member is provided so that the position and / or posture thereof can be changed so as to correspond to a plurality of step pitches and / or a plurality of step angles. According to this, it becomes possible to assemble a plurality of types of stairs with one stairs assembly device.

  In the above-described staircase assembling apparatus capable of supporting a plurality of types, a plurality of gantry-side positioning portions for each supporting member are formed on the gantry, and each supporting member has a plurality of member-side positioning corresponding to the gantry-side positioning portion. The step pitch may be determined by aligning corresponding portions of the gantry side positioning portion and the member side positioning portion. And in this structure, each support member is horizontally slidable in the step pitch adjustment direction, and it is good also as movement restriction | limiting in an up-down direction.

  In the stair assembly device that can handle the above-mentioned plural types, each support member includes a support part on which the tread board support surface and the kick board support surface are formed, and a base connection part connected to the base, The support part may be rotatably connected to the gantry connecting part, and a step angle may be set by selecting an angle of the rotation. In such a configuration, a plurality of positioning portions for angle adjustment are formed in each of the gantry connecting portion and the supporting portion, and the staircase angle is set by aligning corresponding portions in the plurality of positioning portions. It is also good to do.

  Further, in these configurations, the staircase side plate is located on the pedestal and in the vicinity of the non-step side of the staircase side plate disposed so as to contact both the stepping plate and the kick plate supported by the support member. You may provide the pressing tool for pressing to the said footboard and the kick board side.

  According to the present invention, by arranging the members constituting the stairs on the tread board support surface and the kick board support surface of the support member and fixing these members, the stairs are assembled and the assembly work Time can be shortened. This staircase assembly can also be done outside the construction site. Then, even an unskilled person can easily perform this stair assembly. In addition, if there is a staircase assembly device that can handle multiple types, there is no need to prepare a staircase assembly device for each staircase type. Even if it is necessary to transport the stairs, it is possible to transport only one stair assembly device.

It is the perspective view which showed the stair assembly apparatus which concerns on one Embodiment of this invention. It is the perspective view which showed the supporting member in the stair assembly apparatus of FIG. 2 is an exploded perspective view showing a part of the support member. FIG. 3 is a simplified cross-sectional view showing the support member of FIG. 2. It is the perspective view which showed the pressing tool in the staircase assembly apparatus of FIG. It is the perspective view which showed the example of the stairs assembled with the stairs assembly apparatus of FIG. It is the figure which showed the mode of the stair assembly by the stair assembly apparatus of FIG. 1, Comprising: The stair pitch and stair angle are different in the figure (a) and the figure (b). It is the top view which showed the mount frame in the staircase assembly apparatus of FIG. It is explanatory drawing which showed the relationship of the positioning hole formed in the mount connection part and supporting member of the supporting member in the stair assembly apparatus of FIG.

  Next, a stair assembly device according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the staircase assembly device according to the present invention is not limited to the one shown in the following embodiment, and can be appropriately changed and implemented without changing the gist thereof.

  As shown in FIG. 1, the gantry 2 of the stair assembly device 1 has a substantially rectangular parallelepiped frame structure, and a plurality of support members 10 are arranged on the middle frame portion 2 a of the gantry 2. The width of the gantry 2 is adjusted to the horizontal width of the stairs to be assembled, and the length of the gantry 2 is adjusted to the maximum number of steps of the stairs to be assembled. Six paired support portions, which are a pair of support members 10 and 10 disposed facing the width direction of the gantry 2 (the width direction of the stairs), are disposed. That is, the stair assembly device 1 is configured to be able to produce a maximum of 6 steps. In addition, a total of six pressing tools 20 are provided on the upper stage 2 b of the gantry 2, three on each side.

  Among the plurality of paired support portions, the support member 10 (referred to as 10A for this support member 10) in the reference pair of support portions is fixedly attached to the middle frame portion 2a, while the other five support members 10 The support member 10 (the support member 10 is expressed as 10B) in the pair of support portions is provided so as to be horizontally slidable (pitch changeable) with respect to the middle frame portion 2a. More specifically, a rail 31 of an LM guide (linear motion guide body) is installed on the middle frame portion 2a, and each support member 10B is fixed to the upper surface of each moving body 32 guided by the rail 31. Yes. In order to easily set the interval (pitch) between the support members 10B, pitch positioning holes 2c corresponding to the support members 10B are formed in the middle frame portion 2a. Each pitch positioning hole 2c includes a plurality of holes or one hole. A bush is press-fitted into each hole of the pitch positioning hole 2c.

  FIG. 2 is a perspective view showing the support member 10B. The support member 10 </ b> B includes a gantry coupling part 11, a support part 12, and a rotation restricting member 13. Further, FIG. 3 shows main body portions in the gantry coupling part 11 and the support part 12.

  The gantry connecting portion 11 is a metal member having a mounting plate portion 111 and a rising portion 112 and having a substantially T-shaped cross section. The mounting plate portion 111 is formed with four pitch adjustment holes 111a aligned in the step pitch adjustment direction. A bush 113 is press-fitted into each pitch adjustment hole 111a. The positioning pin 41 shown in FIG. 1 can be inserted into the bush 113. Further, as shown in FIG. 3, a bottomed hole 112a for supporting rotation is formed in the rising portion 112 of the gantry connecting portion 11. A bolt insertion hole 112c is formed in the center of the bottomed hole 112a.

  Further, the rising portion 112 is formed with four angle adjusting positioning holes 112b. Then, the bush 114 shown in FIG. 1 is press-fitted into the angle adjustment positioning hole 112b from the back side of the rising portion 112 shown in FIG. Then, the positioning pin 42 shown in FIG. 1 can be inserted into the bush 114.

  Further, two screw holes 112d are formed in the side portion of the rising portion 112. Using these screw holes 112d, the rotation restricting member 13 can be attached as shown in FIG. By screwing a bolt (not shown) into the through screw hole 13 a formed in the rotation restricting member 13 and turning it, the tip of the bolt can be applied to the side surface portion of the support portion 12.

  The support member 10A and the support member 10B are different in the shape of the mounting plate portion 111. That is, since the support member 10B is pitch-adjusted, the mounting plate 111 is attached to the rail 31 and the pitch adjustment hole 111a is formed, whereas the support member 10A is fixed to the gantry 2 at a reference position. It is not necessary to be attached to the rail 31, and the pitch adjusting hole 111a is not required. However, both of the adjustment structures for adjusting the staircase angle are provided.

  As shown in FIG. 2, the support portion 12 includes a tread plate support surface portion 121 and a kick plate support surface portion 122 that respectively support a tread plate and a kick plate that are members constituting a staircase, and a main body portion having a substantially Y shape. 120. The main body 120 is made of metal, and the tread board support surface 121 and the kick board support surface 122 are made of resin. The kick plate support surface portion 122 is formed with a recess 122a for accommodating the edge of the tread plate. The tread board support surface 121 and the kick board support surface 122 are fixed to the main body 120 by screws. Further, the angle formed by the support surface of the tread plate support surface portion 121 and the support surface of the kick plate support surface portion 122 is set to 90 °.

  As shown in FIG. 3, a rotation bearing hole 120 a is formed at a substantially central portion of the main body 120. Further, an angle adjustment positioning hole 120b is formed at a position below the rotation bearing hole 120a. Two angle adjustment positioning holes 120c and 120d are formed on the left side of the figure with the angle adjustment positioning hole 120b as a boundary. And two angle adjusting positioning holes 120e and 120f are also formed on the right side of the figure.

  In the support portion 12 of the support member 10B shown in FIG. 2, bushes 123 are press-fitted into four angle adjustment positioning holes 120b, 120c, 120d, and 120f among the five angle adjustment positioning holes. However, the support member 10B shown in FIG. 2 and another support member 10B forming a pair of support portions have bushes in the four angle adjustment positioning holes 120b, 120d, 120e, and 120f among the five angle adjustment positioning holes. 123 is press-fitted. That is, in the two support members 10 and 10 forming a pair of support portions, the press-fitting position of the bush 123 is a left-right alias. Note that the mounting plate portion 111 is also referred to as a left-right alias in the two support members 10 and 10 forming a pair of support portions.

  FIG. 4 shows a schematic cross-sectional view of the support member 10. The flange portion 14a of the bearing member 14 is fitted into the bottomed hole 112a for the rotational bearing formed in the rising portion 112. A screw hole 14 b is formed at the center of the bearing member 14. The bolt 15 is screwed into the screw hole 14b through the bolt insertion hole 112c, whereby the bearing member 14 is fixed to the rising portion 112.

  The bush 16 is press-fitted into the rotation bearing hole 120a in the support portion 12, and the bush 16 and the support portion 12 have an integral structure. The bearing member 14 is fitted in the bush 16, and the support portion 12 rotates around the bearing member 14. In order to prevent the support portion 12 from being detached from the bearing member 14, a shaft stopper plate 17 having a diameter substantially the same as the diameter of the bush 16 is disposed on the end surface of the bearing member 14. A through hole is formed in the center of the shaft stop plate 17, and the bolt 18 is screwed into the screw hole 14 b of the bearing member 14 through the through hole, whereby the shaft stop plate 17 is fixed to the bearing member 14. The fixed shaft stop plate 17 restricts the axial movement of the support portion 12.

  FIG. 5 shows the pressing tool 20 in an enlarged manner. The base 21 in the pressing tool 20 is fixed to the upper stage 2b of the gantry 2 by four bolts (not shown). The base 21 is provided with a cylindrical body 21a, and a vertical shaft portion 21b is erected at the center of the cylindrical body 21a.

  The vertical shaft portion 21 b is fitted in a bearing hole formed on one end side of the lever portion 22 of the pressing tool 20. A holding screw 23 is screwed into a screw hole formed on the other end side of the lever portion 22. A roller follower pin 22a is inserted and fixed in the through hole in the center of the lever portion 22, and a roller follower 22b is provided at the lower end of the roller follower pin 22a. The peripheral surface of the roller follower 22b is in contact with the peripheral surface of the cylindrical body 21a, so that the rotation of the lever portion 22 is smoothed and the strength is improved.

  A side plate pressing portion 23 a for pressing the side plate in the staircase is provided at the lower end portion of the pressing screw 23 of the pressing tool 20. A handle 23 b is provided at the upper end of the holding screw 23.

  FIG. 6 shows the stairs 50 to be assembled. The staircase 50 has a four-step structure and includes a tread plate 51, a kick plate 52, a side plate 53, and a crosspiece 54. The crosspiece 54 is disposed so as to reinforce the connecting portion between the step board 51 and the kick board 52.

  FIG. 7 shows a simplified staircase assembly device 1 and a staircase 50 assembled by the device 1. A tread board 51 and a kick board 52 are arranged on the support portion 12, and both are fixed with an adhesive. Moreover, the crosspiece 54 is disposed and fixed to the tread plate 51 and the kick plate 52 with an adhesive. Thereafter, the side plate 53 is disposed, and the handle 23 b of the pressing tool 20 is turned to press the side plate 53 downward by the side plate pressing portion 23 a at the lower end of the pressing screw 23.

  7, (a) of FIG. 7 shows a case where a type A stair 50 (50A) is assembled, and (b) of FIG. 7 shows a case where a type B stair 50 (50B) is assembled. Yes. The stair pitch and the stair angle are different between the type A stair 50A and the type B stair 50B. As can be seen from FIG. 7, the step pitch can be changed by selecting a position when the gantry coupling part 11 is coupled to the gantry 2. Further, the step angle can be changed by selecting the rotation angle of the support part 12 with respect to the gantry connection part 11.

  The stair assembly device 1 of this embodiment can produce four types of staircases of type A, type B, type C, and type D. As shown in FIG. 8, in the middle frame portion 2a of the gantry 2, Roman letters A, B, C, and D corresponding to the respective types in the pitch positioning holes 2c are written in the order of “BCAD”. . That is, among the pitch positioning holes 2c, “B” is set in the hole closest to the support member 10A (not shown in FIG. 8 but shown in FIG. 1) in the reference pair of support portions. The next nearest hole is indicated by “C”, the next nearest hole is indicated by “A”, and the farthest hole is indicated by “D”. Similarly, as shown in FIG. 2, the Roman letters A, B, C, and D corresponding to each type are written in the order of “BCAD” in the vicinity of the bush 113 provided in the gantry connecting portion 11 of the support member 10B. is doing.

  Thereby, for example, when the assembly operator receives an assembly request for the type A staircase, the Roman letter A in the vicinity of the bush 113 provided in the gantry coupling part 11 of each support member 10B and the positioning for each pitch in the gantry 2 By aligning the position of the roman letter A in the hole 2c and inserting the pin 41 into the bush 113 at the location of the roman letter A, the support members 10B can be arranged at a step pitch suitable for the type A. In this embodiment, types A, B, C, and D can be selected up to four stages, but types B, C, and D can be selected for five stages, and only type C can be selected for six stages. For this reason, only “C” and “B, C, D” exist in the pitch positioning hole 2c.

  Similarly, there are four types of staircase angle adjustment (if the staircase pitch is type A, the staircase angle is also type A), and as shown in FIG. 9, the stand connection part 11 (shown by a solid line in the figure) rises. Roman letters A, B, C, and D representing types A, B, C, and D are shown in the vicinity of the four angle adjustment positioning holes 112b of the portion 112. Four angle adjustment positioning holes 120b, 120c, 120d, and 120f in the support portion 12 correspond to the four angle adjustment positioning holes 112b in the gantry connecting portion 11. As can be seen from FIG. 9, the corresponding holes in the four angle adjustment positioning holes 112b in the gantry connecting part 11 and the four angle adjustment positioning holes 120b, 120c, 120d, 120f in the support part 12 are Since a predetermined amount of deviation is formed on the circular arc centered on the bolt insertion hole 112c that is the center of rotation, the stair angle of either type is set by inserting the pin 42 with the corresponding holes aligned. Will be.

  When the staircase type is not frequently selected, the support portion 12 is rotated so as to be the corresponding type and a pin is inserted into the angle adjustment positioning hole, and then formed on the rotation restricting member 13. When the bolts are screwed into the through screw holes 13a and turned, and the tips of these bolts are applied to the side portions of the support portion 12 from both sides, the rotation state of the support portion 12 can be maintained.

  In the embodiment described above, the bushes 113 provided in the gantry coupling part 11 of each support member 10B and the corresponding positions of the pitch positioning holes 2c in the gantry 2 are matched, and the pin 41 is inserted into the bush 113, Although the support members 10B are arranged at a step pitch suitable for each type, the present invention is not limited to this.

  For example, when a screw hole is formed in the mounting plate portion 111 attached to each moving body 32 guided by the rail 31 and a bolt is screwed into the screw hole, the tip of the bolt hits the mount 2 and the mounting plate portion 111. However, since the attachment plate portion 111 is attached to the moving body 32, the movement of the attachment plate portion 111 is regulated by screwing in the bolt, and the attachment plate portion 111 can be fixed on the gantry 2. Therefore, for example, a pitching block is prepared in accordance with the staircase pitch, and the mounting plate portion 111 in the next support member 10B is sequentially fixed by applying the pitching block to the side surface of the mounting plate portion 111 that has already been fixed. The support members 10B can be arranged at a stair pitch suitable for each type. However, in such a configuration, when the mounting plate 111 is fixed by screwing the bolt, there is a possibility that the position of the mounting plate 111 is displaced. For this reason, it can be said that the structure using the pitch positioning hole described above is more desirable.

  In the above description, the position and / or posture of each support member 10B can be changed so that it can correspond to a plurality of step pitches and / or a plurality of step angles. However, the present invention is not limited to this. .

  That is, as an apparatus used for only one type, a stair assembly apparatus whose position and posture are fixed in each support member is also included in the present invention. Such an apparatus has, for example, a structure in which the gantry coupling part 11 and the support part 12 are fixed and the gantry coupling part 11 is fixed to the gantry 2. Even with such a one-type stair assembly device, the work efficiency of stair assembly is improved, and even an unskilled person can easily assemble a stair. Further, for example, if a plurality of types such as an A type single type stair assembly device and a B type single type stair assembly device are prepared, it is possible to correspond to a plurality of types.

  In the above description, the staircase assembly apparatus in which the width of the staircase is fixed is shown, but the present invention is not limited to this. Although it is conceivable that the support members 10 are individually movable in the stair width direction as a configuration corresponding to a plurality of stair widths, the members that support the rails 31 together with the rails 31 are slid to move the support members 10 together. It is also possible to slide it. Moreover, about the press tool 20, it becomes possible to respond | correspond to the change of stair width by making the length of the lever part 22 long. Moreover, it is not necessary to make the width of the gantry 2 itself coincide with the lateral width of the staircase 50 to be assembled. A plurality of them may be arranged so that the distance between their tips coincides with the step width. Therefore, when changing the width of the staircase, it is only necessary to replace it with a protruding member having a protruding length corresponding to the width. In addition, as the projecting member, a member called a free bear (ball bear) formed by movably supporting the ball member may be used, and a spacer member may be attached to the bottom surface of the free bear (ball bear) so as to adjust the protruding length. Good.

DESCRIPTION OF SYMBOLS 1 Stair assembly apparatus 2 Base 2c Positioning hole 10 for pitches Support member 10A Support member (fixation)
10B Support member (movable)
11 Stand connection part 111 Mounting plate part 111a Pitch adjustment hole 112 Standing part 112b Angle adjustment positioning hole 12 Support part 120 Main body part 120b, 120c, 120d, 120e, 120f Angle adjustment positioning hole 121 Tread board support surface part 122 Kick board support surface part 20 Pressing tool

Claims (7)

A pair of support members having a tread plate support surface and a support member having a kick plate support surface that respectively support a tread plate and a kick plate, which are members constituting the staircase, at intervals corresponding to the step width, and a distance corresponding to the stair pitch A staircase assembling device characterized in that a plurality of devices are arranged on the gantry. 2. The stair assembly apparatus according to claim 1, wherein each support member is provided so that a position and / or posture thereof can be changed so as to correspond to a plurality of stair pitches and / or a plurality of stair angles. Stair assembly device. The stair assembly device according to claim 2, wherein a plurality of pedestal side positioning portions for each support member are formed on the pedestal, and each support member has a plurality of member side positioning portions corresponding to the pedestal side positioning portion. The staircase assembly apparatus is characterized in that a staircase pitch is determined by alignment of corresponding portions of the gantry side positioning portion and the member side positioning portion. 4. The stair assembly apparatus according to claim 3, wherein each support member is horizontally slidable in the stair pitch adjustment direction, and movement is restricted in the vertical direction. 3. The stair assembly apparatus according to claim 2, wherein each support member includes a support part on which the tread board support surface and the kick board support surface are formed, and a base connection part connected to the base, A stair assembly apparatus, wherein the support part is rotatably connected to a gantry connecting part, and a stair angle is set by selecting an angle of the rotation. 6. The stair assembly device according to claim 5, wherein a plurality of positioning portions for angle adjustment are formed in each of the mount connecting portion and the supporting portion, and corresponding portions in the plurality of positioning portions are aligned with each other. The staircase assembling apparatus characterized in that the staircase angle is set accordingly. The staircase assembly device according to any one of claims 1 to 6, wherein the staircase side plate is disposed on the frame so as to contact both the step board and the kick board supported by the support member. A stair assembly apparatus, characterized in that a pressing tool for pressing the stair side plate against the tread plate and the kick plate side is provided at a location near the non-step side.

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