Fixture
The fixture with a support member and rotation suppression member addresses the issue of horizontal axis rotation in work machines, providing stable mounting for components by using plate portions to suppress rotation, enhancing stability.
Patent Information
- Application Number
- PCT/JP2025/004314
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-03-26
- Filing Date
- 2025-02-10
- Publication Date
- 2025-10-02
AI Technical Summary
Existing work machines with misting devices for driver seats do not adequately address the issue of preventing rotation of support members relative to the support column about the horizontal axis.
A fixture comprising a support member and a rotation suppression member, which includes a first plate portion sandwiched between the support pillar and the support member, and a second plate portion contacting an adjacent side of the support pillar, to suppress rotation about a horizontal axis.
The fixture effectively restrains rotation of the support member relative to the column about a horizontal axis, ensuring stable positioning of components like air conditioners and frames on vehicles with open cabins.
Smart Images

Figure JP2025004314_02102025_PF_FP_ABST
Abstract
Description
Fixture
[0001] The present invention relates to a fastener.
[0002] Conventionally, in a work machine in which the upper part of the driver's seat is covered by a roof supported by multiple pillars, a misting device that sprays mist is located behind the driver's seat (see, for example, Patent Document 1). The misting device includes multiple nozzles, a water supply device, and a circuit device, and is detachably attached between a left pillar and a right pillar of the work machine using four band members. The multiple nozzles are arranged to surround the operator seated in the driver's seat, with their nozzles facing the operator, and spray cooling mist. The water supply device supplies water to the multiple nozzles. The circuit device individually controls the opening of multiple flow rate controls that individually control the flow rate of water sprayed from each of the multiple nozzles.
[0003] JP 2022-40493 A
[0004] However, in the work machine of Patent Document 1, no consideration is given to suppressing rotation of the support member relative to the support column about the horizontal axis.
[0005] The present invention has been made in view of the above circumstances, and has as its object to provide a fixture that can suppress rotation of a support member relative to a support column about a horizontal axis.
[0006] A fixing device according to one aspect of the present disclosure is a fixing device for a mount attached to a support pillar of an open-cabin vehicle, and includes a support member that faces a first side of the support pillar and supports the mount relative to the support pillar so that the mount can rotate about a vertical axis, and a rotation suppression member that is fixed to the support member and suppresses rotation about a horizontal axis that intersects with the first side, and the rotation suppression member includes a first plate portion that is sandwiched between the first side and the inner surface of the support member, and a second plate portion that is connected to the first plate portion and contacts a second side of the support pillar that is adjacent to the first side and parallel to the horizontal axis.
[0007] A fixture can be provided that restrains rotation of the support member relative to the column about a horizontal axis.
[0008] 1 is a perspective view of an open-cabin type vehicle according to a first embodiment; FIG. 1 is a perspective view showing a state in which a pedestal on which an air conditioner is mounted is attached to a support pole by a fastener; FIG. 2 is a perspective view showing a state in which the pedestal on which the air conditioner is mounted is rotated relative to the support pole by the fastener; FIG. 3 is a side view perspectively showing a state in which a fastener including a rotation suppressing member clamps the support pole; FIG. 4 is an exploded perspective view showing a support member including a first clamping member and a second clamping member; FIG. 5 is a perspective view showing a rotation suppressing member; FIG. 6 is a perspective view showing a screw that fastens the first clamping member of the support member to the rotation suppressing member; FIG. 7 is a perspective view showing a second L-shaped member of the rotation suppressing member according to a second embodiment; FIG. 8 is a perspective view from the left rear that is perspectively showing a state in which a fastener including a rotation suppressing member clamps the support pole; FIG. 9 is a perspective view from the right front that is perspectively showing a state in which a fastener including a rotation suppressing member clamps the support pole; FIG. 10 is a perspective right side view showing a state in which a fixing device including a rotation suppressing member clamps a support pole.
[0009] (Embodiment 1) An embodiment will be described below with reference to the drawings. In the following description, arrows in the drawings will be used to indicate left and right, front and rear, and up and down. FIG. 1 is a perspective view of an open-cabin vehicle 8 according to embodiment 1. FIG. 2 is a perspective view showing a frame 9 on which an air conditioner 92 is mounted, attached to a support 81 by a fixture 1. An open-cabin vehicle 8 to which an air conditioner 92 of this embodiment is attached will be described. One example of the open-cabin vehicle 8 of this embodiment is a forklift. Alternatively, the open-cabin vehicle 8 may be a construction machine or a work vehicle such as a small excavator. The forklift, which is the open-cabin vehicle 8, has two supports 81 that support head guards. A frame 9, which will be described later, is rotatably attached to these two supports 81 by the fixture 1.
[0010] In this embodiment, the fixture 1 is attached to the left support pillar 81. The support pillar 81 includes a first side surface 811, a second side surface 812, a third side surface 813, and a fourth side surface 814. Based on the front-rear and left-right orientation of the open-cabin type vehicle 8, the first side surface 811 corresponds to the left side surface, the second side surface 812 corresponds to the rear side surface, the third side surface 813 corresponds to the front side surface, and the fourth side surface 814 corresponds to the right side surface. That is, the first side surface 811, the second side surface 812, the fourth side surface 814, and the third side surface 813 are positioned in that order counterclockwise. Therefore, the first side surface 811, which is the left side surface, faces the fourth side surface 814, which is the right side surface, and the second side surface 812, which is the rear side surface, faces the third side surface 813, which is the front side surface. When a horizontal axis intersecting the first side surface 811 is used as a reference, the first side surface 811 and the fourth side surface 814 correspond to surfaces perpendicular to the horizontal axis, and the second side surface 812 and the third side surface 813 correspond to surfaces parallel to the horizontal axis.
[0011] A clamp member similar to that of the fixture 1 is attached to the right-side support 81. A hinge 5 is attached to the fixture 1. A base 9 on which an air conditioner 92 is placed is fastened to the hinge 5. The base 9 includes a basket-shaped storage section for placing and storing the air conditioner 92, and a shaft 91 extending horizontally. The base 9 fastened to the hinge 5 is attached so as to be rotatable about the vertical axis of the hinge 5 by a rotation axis extending vertically. The base 9 is fixed by engaging the end of the shaft 91 with a clamp member attached to the right-side support 81.
[0012] FIG. 3 is a perspective view showing a state in which the pedestal 9 on which the air conditioner 92 is mounted is being rotated relative to the support column 81 by the fixture 1. By removing the shaft 91 of the pedestal 9 from the clamp member attached to the right-side support column 81, the restriction on the pedestal 9 is released, and the pedestal 9 can be rotated around the vertical axis. By rotating the pedestal 9, the pedestal 9 can be moved to a position on the rotation path at the rear of the open-cabin type vehicle 8. This allows maintenance work, etc., to be performed around the seats of the open-cabin type vehicle 8. At this time, the weight of the pedestal 9 and the air conditioner 92 mounted on the pedestal 9 is applied to the fixture 1, and therefore, a clockwise stress is applied to the fixture 1 as viewed from the left. The application of this clockwise stress acts as a force that rotates the fixture 1 around a horizontal axis, but the rotation around the horizontal axis can be suppressed by the rotation suppressing member 6 included in the fixture 1.
[0013] Fig. 4 is a perspective side view showing a state in which a fixing device 1 including a rotation suppressing member 6 clamps a support pillar 81. Fig. 5 is an exploded perspective view showing a support member 2 including a first clamping member 21 and a second clamping member 22. Fig. 6 is a perspective view showing the rotation suppressing member 6. In this embodiment, the fixing device 1 is attached to a support pillar 81 on the left side of an open-cabin type vehicle 8. The support pillar 81 of the open-cabin type vehicle 8 is inclined forward. The fixing device 1 includes a support member 2 and a rotation suppressing member 6, and a hinge portion 5 is fastened to the support member 2.
[0014] The support member 2 includes a plate-shaped first clamping member 21 and a second clamping member 22. For the same support pillar 81, the first clamping member 21 is arranged on the side of a first side surface 811, which is the left side surface of the support pillar 81. The second clamping member 22 is arranged on the side of a fourth side surface 814, which is the right side surface. Bolt holes 31 are formed in the four corners of the first clamping member 21 and the second clamping member 22.
[0015] The support pillar 81 is interposed between the first clamping member 21 and the second clamping member 22, and the bolts 3 are inserted into and fastened to the bolt holes 31 of the first clamping member 21 and the second clamping member 22, respectively, so that the support pillar 81 is clamped by the first clamping member 21 and the second clamping member 22. In this manner, the support member 2 functions as a clamp member that clamps the support pillar 81. At this time, the inner surface of the second clamping member 22 of the support member 2 fastened by the bolt 3 may come into contact with the third side surface 813 of the support pillar 81, thereby contributing to suppression of rotation of the support member 2 relative to the support pillar 81.
[0016] Although the support member 2 has been described as functioning as a clamp member by separate parts consisting of the first clamping member 21 and the second clamping member 22, the support member 2 is not limited to this. The support member 2 may be one in which the first clamping member 21 and the second clamping member 22 are integrally formed into a U-shape by an intermediate member positioned between the first clamping member 21 and the second clamping member 22.
[0017] A plurality of through holes 4 are formed in the first clamping member 21. The plurality of through holes 4 includes through holes 4 that are arranged at equal intervals in the width direction of the first side surface 811 of the support 81, i.e., in the front-to-rear direction of the open-cabin type vehicle 8, when the first clamping member 21 is attached to the support 81, and through holes 4 that are arranged in the up-down direction. In the present embodiment, three through holes 4 are formed above and below the first clamping member 21, for a total of six through holes 4.
[0018] By forming a plurality of through holes 4 along the width direction of the first side surface 811 of the support pillar 81, it is possible to accommodate differences in the size or shape of the support pillar 81 depending on the type of open-cabin vehicle 8 by using any of the through holes 4. Furthermore, by inserting screws 7 into the two through holes 4 in the vertical direction, the rotation suppressing member 6 and the first clamping member 21 can be fixed at two locations, and the fixing force between the rotation suppressing member 6 and the first clamping member 21 can be improved.
[0019] A rotation suppressing member 6 is interposed between the first clamping member 21 and the support 81. In this embodiment, a single rotation suppressing member 6 is disposed for each support 81, and the rotation suppressing member 6 corresponds to a first L-shaped member 61. That is, the rotation suppressing member 6 includes the first L-shaped member 61. The first L-shaped member 61 has a first plate portion 611 and a second plate portion 612 formed by bending the first plate portion 611, and the first plate portion 611 and the second plate portion 612 form an L-shape in a cross-sectional view from above. The first L-shaped member 61 further has a protrusion 63, which is formed by bending the first plate portion 611 in the opposite direction to the second plate portion 612.
[0020] The first plate portion 611 has a rectangular plate shape and is clamped between the first side surface 811 of the support 81 and the inner surface of the first clamping member 21, with its longitudinal direction aligned along the height direction of the support 81. That is, the left surface of the first plate portion 611 contacts the inner surface of the first clamping member 21, and the right surface of the first plate portion 611 contacts the first side surface 811 of the support 81. The second plate portion 612 has a rectangular plate shape and is formed by being bent toward the right relative to the first plate portion 611. That is, the second plate portion 612 is connected to the first plate portion 611. Like the first plate portion 611, the second plate portion 612 has a rectangular plate shape and is in contact with the second side surface 812 of the support 81, with its longitudinal direction aligned along the height direction of the support 81.
[0021] The longitudinal length of the second plate portion 612 is equal to the longitudinal length of the first plate portion 611. The lateral length of the second plate portion 612 is smaller than the lateral length of the first plate portion 611. That is, the area of the second plate portion 612 is smaller than the area of the first plate portion 611. The lateral length of the second plate portion 612 may be set to between 70% and 95% of the width of the second side surface 812 of the support 81, such as 90% of the width of the second side surface 812 of the support 81. By setting the lateral length of the second plate portion 612 close to the width of the second side surface 812 of the support 81, the contact area between the second plate portion 612 and the second side surface 812 of the support 81 is increased, and the second plate portion 612 can effectively withstand stress in the clockwise direction due to the weight of the air conditioner 92 and the frame 9.
[0022] The protrusion 63 formed above the first plate portion 611 has a rectangular plate shape and is bent toward the left side relative to the first plate portion 611. The protrusion 63 is arranged with its longitudinal direction aligned with the width direction of the first side surface 811 of the support 81, i.e., the front-to-rear direction. The length of the protrusion 63 in the longitudinal direction is smaller than the length of the first plate portion 611 in the lateral direction. The length of the protrusion 63 in the lateral direction is equal to or greater than the thickness of the first clamping member 21, i.e., the dimensional value of the plate thickness.
[0023] The lower surface of the convex portion 63 is disposed in contact with the upper surface of the first clamping member 21, i.e., the convex portion 63 is located above the upper surface of the first clamping member 21. In this case, the length of the convex portion 63 in the short direction is equal to or greater than the thickness of the first clamping member 21, and therefore the convex portion 63 of the first L-shaped member 61 is engaged with the upper surface of the first clamping member 21. As a result, when the first plate portion 611 of the first L-shaped member 61 is interposed between the inner surface of the first clamping member 21 and the first side surface 811 of the support 81, the convex portion 63 engages with the upper surface of the first clamping member 21, thereby preventing the first L-shaped member 61 from falling.
[0024] As described above, a plurality of through holes 4 are formed in the first clamping member 21. A spiral groove is formed on the inner surface of each through hole 4, and the through hole 4 functions as an internal thread when a screw 7 is inserted therein. In this embodiment, three through holes 4 are formed on each of the upper and lower portions, and a screw 7 is inserted into each of the through holes 4 formed in the center in the front-to-rear direction on both the upper and lower portions.
[0025] FIG. 7 is a perspective view showing the screw 7 that secures the first clamping member 21 of the support member 2 and the rotation suppressing member 6. The screw 7 inserted into the through hole 4 may be a double-point screw with a conical protrusion formed at its tip. The tip of the double-point screw has a conical protrusion formed in the center of the tip of the recess. By inserting the double-point screw into the through hole 4, the conical protrusion formed at the tip of the screw 7 and the annular peripheral portion of the recess bite into the first plate portion 611 of the first L-shaped member 61. This increases the frictional force between the screw 7 and the first L-shaped member 61.
[0026] In the screw 7, the length of the shank on which the spiral groove is formed is greater than the thickness of the first clamping member 21 included in the support member 2, and is less than the combined thickness of the first clamping member 21 and the rotation suppressing member 6. By using the screw 7 configured in this manner, the tip of the screw 7 inserted into the through hole 4 of the first clamping member 21 presses against the first plate portion 611 of the first L-shaped member 61, making it possible to firmly fix the first L-shaped member 61 to the support member 2.
[0027] As shown in the present embodiment, when the support pillar 81 is inclined toward the front of the open-cabin vehicle 8, only one rotation suppressing member 6, i.e., first L-shaped member 61, may be provided for the same support pillar 81. In this case, the second plate portion 612 of the first L-shaped member 61 contacts the second side surface 812 of the support pillar 81, suppressing clockwise rotation of the fastener 1, particularly at a portion below the second plate portion 612. The portion below the second plate portion 612 is shown, for example, by a dashed oval on the lower right side in FIG. 4 . In addition, the inner surface of the second clamping member 22 fastened to the first clamping member 21 by the bolt 3 may contact the third side surface 813 of the support pillar 81, suppressing clockwise rotation of the fastener 1, particularly at an upper portion of the inner surface of the second clamping member 22.
[0028] As shown in FIG. 5 , the second clamping member 22 has a crank shape with two consecutive L-shaped bent portions at its front, i.e., on the side of the third side surface 813 of the support 81. In this case, the inner surface located between the consecutive L-shaped bent portions faces the third side surface 813 of the support 81. When the first clamping member 21 and the second clamping member 22 included in the support member 2 are fastened with the bolt 3 to clamp the support 81, the inner surface located between the bent portions of the second clamping member 22 may contact or abut against the third side surface 813 of the support 81. Because the support 81 is tilted forward, the upper part of the third side surface 813 of the support 81 comes into contact with the upper part of the inner surface located between the bent portions of the second clamping member 22. As a result, clockwise rotation of the support member 2 including the second clamping member 22 is restricted by the third side surface 813 of the support 81. In this way, the clockwise stress applied to the support member 2 by the weight of the air conditioner 92 and the frame 9 is withstood at two points indicated by dashed ellipses in Fig. 4. Therefore, rotation of the support member 2 about the horizontal axis intersecting with the first side surface 811 of the support column 81 can be restricted at these two points.
[0029] 8 is a perspective view showing a second L-shaped member 62 included in a rotation restricting member 6 according to a second embodiment. The rotation restricting member 6 includes a first L-shaped member 61 similar to that of the first embodiment, and further includes a second L-shaped member 62. That is, the rotation restricting member 6 includes the first L-shaped member 61 and the second L-shaped member 62. The second L-shaped member 62 is an L-shaped member having the same shape as the first L-shaped member 61 described in the first embodiment. That is, the first L-shaped member 61 and the second L-shaped member 62 may be the same part with the same part number or model.
[0030] The second L-shaped member 62 includes a third plate portion 623, a fourth plate portion 624, and a convex portion 63. The second L-shaped member 62 has the same shape as the first L-shaped member 61. The third plate portion 623 of the second L-shaped member 62 corresponds to the second plate portion 612 of the first L-shaped member 61. The fourth plate portion 624 of the second L-shaped member 62 corresponds to the first plate portion 611 of the first L-shaped member 61. A convex portion 63 is formed above the fourth plate portion 624 of the second L-shaped member 62, similar to the first plate portion 611 of the first L-shaped member 61.
[0031] Fig. 9 is a perspective view from the left rear, showing the state in which the fixture 1 including the rotation inhibiting member 6 clamps the support pillar 81. Fig. 10 is a perspective view from the right front, showing the state in which the fixture 1 including the rotation inhibiting member 6 clamps the support pillar 81. Fig. 11 is a side view from the left, showing the state in which the fixture 1 including the rotation inhibiting member 6 clamps the support pillar 81. Fig. 12 is a side view from the right, showing the state in which the fixture 1 including the rotation inhibiting member 6 clamps the support pillar 81. In this embodiment, the support pillar 81 of the open-cabin type vehicle 8 is inclined rearward.
[0032] The rotation suppressing member 6 of the fixing device 1 includes a first L-shaped member 61 and a second L-shaped member 62. The first L-shaped member 61 is disposed on the first side surface 811 and the second side surface 812 of the support pillar 81, as in the first embodiment. The second L-shaped member 62 is disposed on the fourth side surface 814 and the third side surface 813 of the support pillar 81. Therefore, the first L-shaped member 61 and the second L-shaped member 62 are disposed opposite each other via the support pillar 81. As a result, the corners of the first L-shaped member 61 and the second L-shaped member 62 are positioned along the diagonal of the support pillar 81, which has a rectangular shape in a cross-sectional view from above.
[0033] The support member 2 includes a first clamping member 21 and a second clamping member 22, similar to those in the first embodiment. The first clamping member 21 has a plurality of through holes 4 formed therein, similar to those in the first embodiment, and the second clamping member 22 also has a through hole 4 similar to that of the first clamping member 21. As in the first embodiment, a screw 7, for example, having a double point shape, is inserted into each of the through holes 4 of the first clamping member 21 and the second clamping member 22. The relationship in magnitude between the length of the shank of the screw 7 and the thickness of the second clamping member 22 and the second L-shaped member 62 is similar to that between the thickness of the first clamping member 21 and the first L-shaped member 61 in the first embodiment.
[0034] In terms of the positional relationship between the support pillar 81, the support member 2, and the rotation suppressing member 6, the first L-shaped member 61 is disposed relative to the support pillar 81 and the first clamping member 21, similar to the first embodiment. That is, the first plate portion 611 of the first L-shaped member 61 is clamped between the first side surface 811 of the support pillar 81 and the inner surface of the first clamping member 21. Furthermore, the second plate portion 612 of the first L-shaped member 61 contacts the second side surface 812 of the support pillar 81. The protrusion 63 formed on the upper part of the first plate portion 611 of the first L-shaped member 61 contacts the upper surface of the first side surface 811 of the support pillar 81, preventing the first L-shaped member 61 from falling.
[0035] The fourth plate portion 624 of the second L-shaped member 62 is clamped between the fourth side surface 814 of the support 81 and the inner surface of the second clamping member 22. The third plate portion 623 of the second L-shaped member 62 contacts the third side surface 813 of the support 81. The protrusion 63 formed on the upper part of the fourth plate portion 624 of the second L-shaped member 62 contacts the upper surface of the fourth side surface 814 of the support 81, preventing the second L-shaped member 62 from falling.
[0036] As in the first embodiment, the first clamping member 21 and the second clamping member 22 included in the support member 2 are fastened together with the bolts 3. As a result, the first L-shaped member 61, the support pillar 81, and the second L-shaped member 62 interposed between the first clamping member 21 and the second clamping member 22 are also clamped by the first clamping member 21 and the second clamping member 22. Therefore, the inner surface of the first clamping member 21, the first plate portion 611 of the first L-shaped member 61, the first side surface 811 of the support pillar 81, the fourth side surface 814 of the support pillar 81, the fourth plate portion 624 of the second L-shaped member 62, and the inner surface of the second clamping member 22 are arranged in this order from the left side to the right side of the open-cabin type vehicle 8, with adjacent surfaces facing each other.
[0037] In this way, two L-shaped members, consisting of a first L-shaped member 61 and a second L-shaped member 62, are arranged with respect to the support member 2 and the support pillar 81. As a result, rotation of the support member 2 about a horizontal axis intersecting with the first side surface 811 of the support pillar 81 can be suppressed by two locations: the first L-shaped member 61 and the second plate portion 612, which are contact portions with the second side surface 812 of the support pillar 81, and the second L-shaped member 62 and the third plate portion 623, which are contact portions with the third side surface 813 of the support pillar 81.
[0038] In the first L-shaped member 61, the fastener 1 is prevented from rotating clockwise, particularly at a portion below the second plate portion 612. The portion below the second plate portion 612 is shown, for example, by a dashed oval in Fig. 11. In the second L-shaped member 62, the fastener 1 is prevented from rotating clockwise, particularly at a portion above the third plate portion 623. The portion above the third plate portion 623 is shown, for example, by a dashed oval in Fig. 12.
[0039] In the support 81, a second side surface 812 corresponding to the rear side surface and a third side surface 813 corresponding to the front side surface are surfaces parallel to a horizontal axis perpendicular to the first side surface 811 corresponding to the left side surface. In this way, the rotation suppressing members 6, i.e., the first L-shaped member 61 and the second L-shaped member 62, are arranged on the second side surface 812 and the third side surface 813, which are two of the sides of the support 81 that are parallel to the horizontal axis. This makes it possible to firmly suppress tilt of the frame 9, i.e., rotation in the direction of gravity, even for an open-cabin type vehicle 8 in which the support 81 is tilted rearward.
[0040] In this embodiment, for example, a frame 9 for accommodating an air conditioner 92 and the like is attached to a support pillar 81 of an open-cabin vehicle such as a forklift using a fixing device 1. The frame 9 attached to the support pillar 81 using the fixing device 1 is configured to be rotatable about a vertical axis relative to the support pillar 81. The fixing device 1 includes a support member 2 and a rotation suppressing member 6. The first plate portion 611 of the rotation suppressing member 6 is disposed between a first side surface 811 of the support pillar 81 and an inner surface of the support member 2 facing the first side surface 811, and is sandwiched between the first side surface 811 of the support pillar 81 and the inner surface of the support member 2. Therefore, a layered structure is formed in the order of the first side surface 811 of the support pillar 81, the first plate portion 611 of the rotation suppressing member 6, and the inner surface of the support member 2. The second plate portion 612 of the rotation suppressing member 6 is connected to the first plate portion 611. Furthermore, the second plate portion 612 is in contact with the second side surface 812 adjacent to the first side surface 811 of the support column 81. This prevents the support member 2 from rotating around the horizontal axis relative to the support column 81. That is, the second plate portion 612 of the rotation suppressing member 6 functions as a rotation stopper. When the base 9 is rotated and moved relative to the support column 81 with the air conditioner 92 and other components stored in the base 9, a force corresponding to the longitudinal length of the base 9 is applied to the support member 2 in response to the weight of the air conditioner 92 and the base 9, due to the principle of leverage. This causes a clockwise stress to be applied to the support member 2 when viewed from the left. In response to this, the second plate portion 612 of the rotation suppressing member 6 fixed to the support member 2 contacts the second side surface 812 of the support column 81, thereby preventing the support member 2 from rotating due to the clockwise stress. Therefore, tilting of the frame 9, i.e., rotation in the direction of gravity, can be suppressed without directly fixing the frame 9 to the support 81 of the open-cabin vehicle 8 by, for example, screwing or welding.
[0041] In this embodiment, the rotation suppressing member 6 further includes a third plate portion 623 that contacts the third side surface 813. As a result, the rotation suppressing member 6 is disposed on two of the side surfaces of the support 81 that are parallel to the horizontal axis, so that tilting of the pedestal 9, i.e., rotation in the direction of gravity, can be more firmly suppressed.
[0042] In this embodiment, the support 81 has a rectangular shape in a cross-sectional view and has a first side surface 811, a second side surface 812, a third side surface 813, and a fourth side surface 814. In this case, the first side surface 811 corresponds to the left side surface, the second side surface 812 corresponds to the rear side surface, the third side surface 813 corresponds to the front side surface, and the fourth side surface 814 corresponds to the right side surface, and the first side surface 811 and the fourth side surface 814 face each other, and the second side surface 812 and the third side surface 813 face each other. In this case, the second side surface 812 and the third side surface 813 correspond to the side surfaces of the support 81 that are parallel to the horizontal axis. The first side surface 811 and the fourth side surface 814 correspond to the side surfaces of the support 81 that are perpendicular to the horizontal axis. The second plate portion 612 and the third plate portion 623 of the rotation suppressing member 6 function as rotation suppressing portions, and each rotation suppressing portion can suppress rotation of the support member 2 relative to the support column 81 at two contact points between the second side surface 812 and the third side surface 813, thereby more firmly suppressing tilt of the cradle 9, i.e., rotation in the direction of gravity. For example, if the support column 81 is tilted backward, when stress is applied to the support member 2 in the clockwise direction as viewed from the left, it is expected that the inner surface of the support member 2 will not contact the fourth side surface 814 in a manner that restricts rotation of the support member 2. Even in such a case, the second side surface 812 of the other rotation suppressing member 6 contacts the fourth side surface 814. Therefore, even if the support column 81 of the open-cabin vehicle 8 is tilted backward, it can withstand stress in the clockwise direction due to the weight of the air conditioner 92 and the cradle 9, and can suppress tilt of the cradle 9, i.e., rotation in the direction of gravity.
[0043] In this embodiment, the rotation suppressing member 6 has a first L-shaped member 61 and a second L-shaped member 62. The first L-shaped member 61 includes the first plate portion 611 and the second plate portion 612, which are integrally formed. The second L-shaped member 62 includes the third plate portion 623 and the fourth plate portion 624, which are integrally formed. In this manner, in the first L-shaped member 61 and the second L-shaped member 62, the portion that is clamped by the inner surface of the support member 2 and the portion that contacts the support post 81 and functions as a rotation suppressing portion are integrally formed, thereby reducing the number of parts and simplifying the installation work.
[0044] In this embodiment, the rotation suppressing member 6 includes a first L-shaped member 61 and a second L-shaped member 62, which have the same shape. By arranging the first L-shaped member 61 and the second L-shaped member 62 in opposing positions across a single support 81, the first L-shaped member 61 and the second L-shaped member 62 can be identical parts with the same shape, i.e., the same part number or model. Therefore, when attaching the rotation suppressing member 6 to the support 81, incorrect attachment, such as attaching the first L-shaped member 61 and the second L-shaped member 62 upside down, can be reliably prevented. For example, if the two rotation suppressing members 6 attached to the first side 811 and the fourth side 814 of the support 81 have different shapes, there is a concern that the rotation suppressing member 6 that should be attached to the fourth side 814 may be attached to the first side 811 instead. In contrast, by making the first L-shaped member 61 and the second L-shaped member 62 included in the rotation suppressing member 6 the same shape, polarity is eliminated during installation, making it possible to reliably prevent incorrect installation. Furthermore, by making the first L-shaped member 61 and the second L-shaped member 62 included in the rotation suppressing member 6 the same part, parts can be standardized, thereby reducing part costs.
[0045] In this embodiment, the rotation suppressing member 6 has a protrusion 63 that contacts the upper surface of the support member 2. Therefore, the protrusion 63 contacts and engages with the upper surface of the support member 2, thereby preventing the rotation suppressing member 6 from falling downward when the rotation suppressing member 6 is attached. For example, after the rotation suppressing member 6 is disposed between the inner surface of the support member 2 and the first side surface 811 of the support 81, it is expected that the rotation suppressing member 6 will fall downward when the rotation suppressing member 6 is fixed to the support member 2. Even in such a case, the protrusion 63 of the rotation suppressing member 6 contacts the upper surface of the support member 2. Therefore, the rotation suppressing member 6 can be temporarily fixed to the support member 2, effectively preventing the rotation suppressing member 6 from falling downward.
[0046] In this embodiment, the convex portion 63 of the rotation suppressing member 6 is formed by bending it relative to the first plate portion 611. That is, the rotation suppressing member 6 has the convex portion 63 formed by bending it relative to the first plate portion 611, and the second plate portion 612 formed by bending it relative to the first plate portion 611. In this case, the side of the first plate portion 611 on which the convex portion 63 is formed is adjacent to the side of the first plate portion 611 on which the second plate portion 612 is formed. The bending direction of the convex portion 63 relative to the first plate portion 611 is opposite to the bending direction of the second plate portion 612 relative to the first plate portion 611. In this manner, the convex portion 63 is formed by bending the rectangular first plate portion 611. Therefore, the rotation suppressing member 6 having the convex portion 63 can be manufactured with a relatively simple configuration.
[0047] In this aspect, a through hole 4 is formed in the support member 2, and an internal thread may be formed on the inner peripheral surface of the through hole 4. A screw 7 is inserted into the through hole 4, which functions as the internal thread, from the outer surface side of the support member 2. The length of the shank of the screw 7, on which the spiral groove is formed, is greater than the thickness of the support member 2 and less than the combined thickness of the support member 2 and the rotation suppressing member 6. The tip of the inserted screw 7 presses against the first plate portion 611 of the rotation suppressing member 6, thereby fixing the rotation suppressing member 6 to the support member 2. Therefore, the rotation suppressing member 6 can be fixed to the support member 2 with a relatively simple configuration.
[0048] In this embodiment, the through holes 4 formed in the support member 2 include at least two through holes 4: an upper through hole 4 formed above the support column 81 in the height direction, and a lower through hole 4 formed below the support column 81 in the height direction. The support member 2 and the rotation suppressing member 6 are fixed at two locations, the upper through hole 4 and the lower through hole 4. Therefore, the clockwise stress applied to the support member 2 by the weight of the air conditioner 92 and the pedestal 9 can be distributed to these two locations, and tilting of the pedestal 9, i.e., rotation in the direction of gravity, can be effectively suppressed.
[0049] In this aspect, the support member 2 has a plurality of through holes 4, for example, three, formed at equal intervals along the width direction of the first side surface 811 of the support pillar 81, which is in the fore-and-aft direction of the open-cabin type vehicle 8. The through holes 4 include two through holes 4, one on the upper side and one on the lower side, and these two through holes 4 on the upper side and the other on the lower side form a pair and form a plurality of pairs along the width direction of the support pillar 81. When attaching the fastener 1 to the support pillar 81 of the open-cabin type vehicle 8, it is expected that the shape of the support pillar 81, such as its width and inclination, will differ depending on the vehicle model of the open-cabin type vehicle 8. Even in such a case, the support member 2 has a plurality of through holes 4 formed along the width direction of the support pillar 81. Therefore, by applying one of the through holes 4 according to each support whose shape differs depending on the vehicle model of the open-cabin type vehicle 8, it is possible to accommodate a plurality of vehicle models, thereby improving the availability and versatility of the fastener 1.
[0050] In this embodiment, the tip of the screw 7 has a double-point shape, and the tip of the double-point shape bites into the first plate portion 611 of the rotation suppressing member 6, thereby fixing the rotation suppressing member 6 to the support member 2. This increases the frictional force between the tip of the screw 7 and the first plate portion 611, making it possible to effectively suppress tilting of the pedestal 9, i.e., rotation in the direction of gravity.
[0051] Multiple claims may be combined with each other regardless of the form of reference. Multiple dependent claims may be included in the claims, depending on multiple claims. Multiple dependent claims may be included in a multiple dependent claim. If multiple dependent claims are not included in a multiple dependent claim, this does not limit the number of multiple dependent claims that are included in a multiple dependent claim.
[0052] The embodiments disclosed herein are to be considered as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above meaning, and is intended to include all modifications within the meaning and scope of the claims.
[0053] REFERENCE SIGNS LIST 1 Fixing tool 2 Support member 21 First clamping member 22 Second clamping member 3 Bolt 31 Bolt hole 4 Through hole (internal thread) 5 Hinge portion 6 Rotation suppressing member 61 First L-shaped member 611 First plate portion 612 Second plate portion 62 Second L-shaped member 623 Third plate portion 624 Fourth plate portion 63 Convex portion 7 Screw 8 Open cabin type vehicle 81 Support 811 First side surface (left side surface) 812 Second side surface (rear side surface) 813 Third side surface (front side surface) 814 Fourth side surface (right side surface) 9 Frame 91 Shaft 92 Air conditioner
Claims
1. A fixing device for a mount to be attached to a support pillar of an open-cabin type vehicle, comprising: a support member that faces a first side surface of the support pillar and supports the mount relative to the support pillar so that the mount can rotate about a vertical axis; and a rotation suppressing member that is fixed to the support member and suppresses rotation about a horizontal axis that intersects with the first side surface, wherein the rotation suppressing member has: a first plate portion that is sandwiched between the first side surface and the inner surface of the support member; and a second plate portion that is connected to the first plate portion and comes into contact with a second side surface of the support pillar that is adjacent to the first side surface and parallel to the horizontal axis.
2. The fixture according to claim 1, wherein the rotation suppressing member includes a third plate portion that contacts a third side surface of the support column that faces the second side surface.
3. The fixing device described in claim 2, wherein the support member has a first clamping member that faces the first side surface across the first plate portion, and a second clamping member that faces a fourth side surface of the support pillar that faces the first side surface and is connected to the first clamping member to clamp the pillar together with the first clamping member, and the rotation suppressing member is a fourth plate portion that is fixed to the second clamping member and is positioned between the fourth side surface and the inner surface of the second clamping member.
4. The fixing device according to claim 3, wherein the rotation suppressing member comprises a first L-shaped member in which the first plate portion and the second plate portion are integrally formed, and a second L-shaped member in which the third plate portion and the fourth plate portion are integrally formed.
5. The fixture according to claim 4, wherein the first L-shaped member and the second L-shaped member have the same shape.
6. The fixture according to claim 2, wherein the rotation suppressing member has a protrusion that contacts the upper surface of the support member.
7. The fixing device according to claim 6, wherein the convex portion of the rotation restricting member is formed by being bent relative to the first plate portion.
8. The fixing device according to claim 1, wherein a through hole is formed in the support member, the fixing device includes a screw inserted into the through hole, and the length of the screw is greater than the thickness of the support member and less than the combined thickness of the support member and the rotation suppressing member.
9. The fixture according to claim 8, wherein the support member has the through-holes formed at both the top and bottom in the height direction of the support column.
10. A fixing device as described in claim 9, wherein the support member has a plurality of through holes formed along the width direction of the first side surface of the pillar, which corresponds to the front-to-rear direction of the open-cabin type vehicle.
11. The fastener according to claim 8, wherein the tip of the screw is double-pointed.
Citation Information
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