JP4198939B2 - Variable joint angle joint, movable arm using the joint, and in-vehicle device mounting apparatus including the movable arm - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coupling angle variable joint, a movable arm using the joint, and a vehicle-mounted device mounting apparatus including the movable arm.
[0002]
[Prior art]
Nowadays, with the development of electric devices and communication devices, many electric devices and communication devices that can be easily used outdoors have been developed, and the opportunity to bring such devices into the vehicle is increasing. And if the device brought into the car is a device that is difficult for the user to work while supporting it by hand, such as a personal computer, the user sits on the seat and sits on his / her knee. The work was carried by placing it on the seats or on the dashboard.
[0003]
However, when the equipment is placed on the lap, on the seat, or on the dashboard as described above, the installation position of the equipment cannot be adjusted, so the user can work with a tight appearance. The workability was poor due to the need to carry out the operation and the installation of the equipment became unstable.
[0004]
Moreover, since the device is placed directly on the user's own body, on the car seat, or on the dashboard, there is no problem if the device is lightweight, but if the device is heavy, the load is used directly. The user himself / herself / seat / dashboard, the user could not work comfortably, or the seat / dashboard was damaged.
[0005]
Therefore, in order to improve the workability of the devices in the vehicle, it is conceivable to use an in-vehicle device mounting apparatus X as shown in FIGS.
[0006]
The on-vehicle equipment mounting device X includes an arm support rod 100 that is fixed to the floor in the vehicle, a support arm 300 that is attached to the arm support rod 100 through a joint 200 so as to be movable in the vertical and horizontal directions, The device mounting table 400 is attached to the tip of the support arm 300, and the device H supported by the device mounting table 400 can be placed at any position by moving the support arm 300 in the vertical direction and the horizontal direction. Is.
[0007]
In other words, the on-vehicle equipment placing device X places a joint 200 having a disk shape on the upper end of the arm support rod 100 and having a plurality of arm fixing pin insertion holes 210 formed along the outer edge portion. The center part is fixed, and the base end side of the support arm 300 extending in the horizontal direction is placed on the joint 200, and the support arm 300 can be rotated to the arm support rod 100 via the joint 200. It is pivotally supported. In the figure, 500 is a pivot pin.
[0008]
In addition, an arm fixing pin insertion hole 310 is formed at the base end of the support arm 300, and any one of the plurality of arm fixing pin insertion holes 210 provided in the joint 200 from the arm fixing pin insertion hole 310 is formed. The horizontal position of the support arm 300 is fixed by fitting the cradle fixing pin 600.
[0009]
Therefore, the support arm 300 can be rotated around the axis centered on the pivot pin 500, and the device mounting table 400 attached to the tip of the support arm 300 can be moved back and forth and right and left.
[0010]
The arm support rod 100 includes a cylindrical first arm support rod 100a fixed to the floor of the vehicle, and a cylindrical second arm support rod 100b inserted into the first arm support rod 100a so as to freely advance and retract. The first arm support rod 100a is provided with a hook fixing pin insertion hole 110a at the upper end thereof, and the second arm support rod 100b has a plurality of hook fixing pins at predetermined intervals in the vertical direction. An insertion hole 110b is formed.
[0011]
Then, the second arm support rod 100b is slid up and down and fixed at any position to the rod fixing pin insertion hole 110a of the first arm support rod 100a and the rod fixing pin insertion hole 110b of the second arm support rod 100b. By fitting the pin 700, the length of the arm support rod 100 is adjusted so that the device mounting table 400 attached to the support arm 300 can be moved up and down.
[0012]
According to the on-vehicle device placement apparatus X, it is possible to improve the workability of the devices in the vehicle by moving the devices in the vertical and horizontal directions according to the user's preference.
[0013]
[Problems to be solved by the invention]
However, in the in-vehicle device mounting apparatus, the horizontal position of the support arm is fixed by inserting the fixing pin into the arm fixing pin insertion hole of the support arm and the joint. The support arm swings to the left and right due to the clearance with the fixing pin insertion holes for both arms to be inserted, and the devices cannot be stably supported.
[0014]
Moreover, the fixing position of the support arm in the left-right direction is defined by the position of the arm fixing pin insertion hole provided in the outer edge portion of the joint, and the position of the fixing pin insertion hole for the collar provided in the second arm support rod Since the fixing position of the support arm in the vertical direction is defined, the position of the device mounting table cannot be finely adjusted.
[0015]
Furthermore, since multiple arm fixing pin insertion holes must be drilled on the outer edge of the joint, the joint cannot be compactly formed and takes up space. The pin insertion hole was seen in an exposed state, which was not preferable in terms of design.
[0016]
Accordingly, the present invention provides a joint that can finely adjust the position of the device mounting table by solving the above-described problems, a movable arm using the joint, and a vehicle-mounted device mounting device including the movable arm. The purpose is to do.
[0017]
[Means for Solving the Problems]
  That is, in the present invention described in claim 1,The base end of the arm part is mounted on a support rod that can be supported vertically in the car via a variable coupling angle, and the equipment mounting base is attached to the tip of the arm part. The upper device can be moved to a desired position in the vehicle, and the connecting angle variable joint is arranged opposite to each connecting end of a pair of connected members to be connected to each other and fixed to the connecting end. A set of joint bodies composed of a possible casing and a meshing piece that is housed and fixed inside the casing and formed with an annular meshing portion, and is fitted to the joint body so as to freely advance and retract, A fastening shaft that enables the meshing pieces to be brought into meshing and close contact with each other. Can be fixed at an angle To one-vehicle equipment mounting apparatus, characterized in that by loosening the tightening force between the mesh piece by operation of shaft the tightening was possible to change the articulation angle of the member to be connectedIs intended to provide.
[0018]
  In the present invention described in claim 2,The arm portion includes a first support arm portion including a parallel link that is connected to the support rod so as to be movable up and down via the connection angle variable joint and is movable in the vertical direction, and the first support arm. A vehicle-mounted device mounting apparatus comprising: a second arm portion that is connected to the tip of the portion via the connection angle variable joint and provided with a device mounting tableIs intended to provide.
[0019]
  In the present invention described in claim 3,The tightening shaft is connected to the screw shaft with the rotation lever.Claim 1Or 2DescribedIn-vehicle equipment mounting deviceIs intended to provide.
[0020]
  In this invention of Claim 4,The clamping shaft is a pin body with a rotating lever, and the pin body is fitted to the meshing piece via a cam.Claims characterized in that1Or2DescribedIn-vehicle equipment mounting deviceIs intended to provide.
[0021]
  In the present invention described in claim 5,A biasing member locking projection is provided on the peripheral surface of the clamping shaft, and between the biasing member locking projection and one of the connected members,An urging body that is urged in a direction separating the two is disposed.3Or4DescribedIn-vehicle equipment mounting deviceIs intended to provide.
[0022]
  In the present invention described in claim 6,A biasing body that biases in a direction to separate the meshing pieces formed on each connected member is disposed between the pair of connected members.Claim3 or 4Described inIn-vehicle equipment mounting deviceIs intended to provide.
[0023]
  In the present invention described in claim 7,Formed in the end face of the connected member is a polygonal-shaped engagement piece disposition recess in plan view, and the engagement piece is formed in a shape corresponding to the engagement piece disposition recessCharacterized byThe on-vehicle equipment mounting apparatus of any one of Claims 1-6Is intended to provide.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
  BookJoint angle variable joint according to the embodimentAre connected to each connecting end of a pair of connected members to be interconnected.Arranged opposite to each other, at the connecting endFixedA possible casing, and housed and fixed inside the casing,Annular meshButFormationA pair of joint bodies composed of the engaged pieces and a pair of joint bodiesFit freely and retreat,AboveIntermeshing piecesBiteAnd a tightening shaft that can be fitted together.
[0027]
Then, the meshing pieces are meshed at a desired position, the meshing pieces are fastened by operation of the fastening shaft, and the connected member can be fixed at a predetermined connection angle, while the fastening shaft is operated. The coupling force of the coupled members can be changed by loosening the tightening force between the meshing pieces.
[0028]
  In this way, this joint fixes the connecting angle between the connected members by operating the tightening shaft and strengthening the meshing between the annular meshing portions of both meshing pieces, and also operates the tightening shaft to fix both the meshing pieces. The connection angle between the connected members can be changed by loosening the engagement between the annular engagement portions, and the connection angle can be fixed by securely connecting both the connected members while having a simple and compact structure. Further, the connection angle of both connected members can be easily changed.In addition, since the annular meshing portion having complicated processing is provided in the meshing piece separate from the casing, it becomes easy to process the annular meshing portion, and only the meshing piece is pressed, machined, cast, etc. The joint body can be manufactured without cost.
[0029]
In addition, since the connecting angle of both connected members is changed by rotating one or both of the engaging pieces around the axis and shifting the engaging positions of the annular engaging portions of the engaging pieces, the engaging positions of the annular engaging portions are Every time one is shifted, the connecting angle of both connected members can be changed, and the connecting angle can be finely adjusted. In addition, you may change suitably the shape of the meshing part of an annular meshing part, ie, the number, shape, and length of the tooth | gear to mesh | engage according to a to-be-connected member.
[0030]
Further, the tightening shaft can be a screw shaft provided with a rotating lever, and the tightening shaft can be easily tightened by rotating the rotating lever around the axis. The shaft can be rotated, and the fastening shaft can be fitted while being screwed into the meshing piece. Then, by rotating the fastening shaft forward and backward, the meshing pieces are fastened to fix the connecting angle between the connected members, or conversely, the fastening force between the engaging pieces is loosened to reduce the connecting angle between the connected members. Can be changed.
[0031]
Therefore, both the meshing pieces can be tightened or loosened with a simple configuration, and the joint angle variable joint that is hard to break and can be manufactured at low cost can be obtained. In particular, since the screw shaft is used as the tightening shaft, the tightening force can be adjusted according to the weight of the connected member.
[0032]
The fastening shaft may be a pin body provided with a rotating lever. In that case, the pin body is fitted into the meshing piece via the cam.
[0033]
If the tightening shaft is configured as described above, the tightening shaft can be easily rotated by rotating the rotation lever around the axis, and the meshing pieces can be connected to each other depending on the positional relationship between the tightening shaft and the cam. It is possible to fix the connection angle between the connected members by tightening, or to change the connection angle between the connected members by loosening the tightening force between the meshing pieces.
[0034]
Therefore, both the meshing pieces can be tightened or loosened with a simple configuration, and the joint angle variable joint that is hard to break and can be manufactured at low cost can be obtained. In particular, since the tightening force between the meshing pieces is changed depending on the positional relationship between the tightening shaft and the cam, it is always possible to tighten both meshing pieces with a constant tightening force if the tightening shaft is moved to a predetermined position. It is possible to easily connect the two connected members, and if the fastening shaft is shifted from the predetermined position, the tightening force of both the engaging pieces can be loosened, and the connecting angle of the two connected members can be easily changed. Can do.
[0035]
Also, a biasing member locking projection is provided on the peripheral surface of the tightening shaft, and the biasing member locking projection and one of the connected members are biased away from each other. If an urging body is provided, the urging body can always apply pressure to the fastening shaft from a direction orthogonal to the rotational direction, and only against the pressure when the fastening shaft is operated by the rotating lever. Thus, the fastening shaft can be rotated.
[0036]
And, by preventing the automatic rotation of the tightening shaft using the biasing body in this way, the meshing state of the meshing pieces can be maintained, and the coupled members forming the respective meshing pieces are connected to each other. It is possible to prevent the angle from shifting.
[0037]
On the other hand, if a biasing body that is biased in the direction of separating the meshing pieces formed on each connected member is disposed between the connected members, the tightening force between the meshing pieces can be reduced by operating the fastening shaft. In this case, both the meshing pieces can be pressed in the direction in which they are separated from each other by the urging body, and both the meshing pieces can be quickly separated. Therefore, the connected members once connected can also be quickly separated, and the connection angle can be adjusted smoothly.
[0038]
Further, when the engagement piece is fixed to the connected member, the engagement piece disposing recess having a polygonal shape in plan view is formed on the end surface of the connected member, and the engaging piece corresponds to the engaging piece disposing recess. It is also possible to form the shape and store the engaging piece in the engaging piece disposing recess.
[0039]
If the engaging piece is fixed to the connected member by the above-described configuration, the engaging piece is placed in contact with the engaging piece disposing recess in the engaging piece disposing recess so that the engaging piece is in contact with the engaging piece disposing recess. It is possible to prevent sliding and rotation inside. Therefore, the connected member and the engagement piece can be interlocked, and the engagement angle between the connected members can be prevented from being shifted due to sliding movement of the engagement piece inside the engagement piece disposition recess.
[0040]
The connection angle variable joint can be used, for example, when connecting a plurality of arms. According to the movable arm in which a plurality of arms are coupled via the coupling angle variable joint, the movable arm can be freely moved in the vertical direction, the horizontal direction, or the vertical / horizontal direction by a simple operation. The movable arm can be moved to a desired position by finely adjusting the connection angle between them.
[0041]
In particular, the movable arm can be used in a vehicle-mounted device mounting device that supports devices such as electric devices and communication devices in the vehicle, and the vehicle-mounted device mounting device is arranged so as to be supported in a vertically stretched manner in the vehicle. The base end of the arm part is attached to the support rod provided through the connecting angle variable joint so as to be movable up and down, and the equipment mounting table is attached to the distal end of the arm part. It can be formed to be movable to a desired position.
[0042]
According to such a vehicle-mounted device mounting apparatus, the device can be stably mounted even in the vehicle, and the workability of the device in the vehicle can be improved by arranging the device at a position where the user can easily work. Can do.
[0043]
Moreover, since a device dedicated to equipment placement is provided in the vehicle, the equipment can be placed without damaging existing members in the vehicle, such as seats and dashboards, and the equipment is supported even if the weight of the equipment to be supported is large. The in-vehicle device mounting device can be formed with such a strength that can support the device, and the device can be reliably supported.
[0044]
Further, the arm portion of the on-vehicle equipment mounting device has a first support comprising a parallel link that is vertically movable and connected to a connector that is attached to the support rod so as to be vertically movable via the connection angle variable joint. If the arm part and the second arm part connected to the tip of the first support arm part via the connection angle variable joint and provided with the device mounting table are provided, the movement of the arm part is the first. Since it can be divided into two stages of movement by the support arm part and movement by the second support arm part, it becomes easy to avoid an obstacle such as a seat that becomes an obstacle to the movement of the arm part. The movable range of the supported device can be expanded.
[0045]
【Example】
Embodiments of the variable connecting angle joint according to the present invention will be described below with reference to the drawings. In the embodiment, description will be made assuming that the connected member connected by the joint is in the shape of a pipe.
[0046]
FIG. 1 is a view showing an embodiment of a joint according to the present invention, in which (a) is a partially sectional side view and (b) is a front view. FIG. 2 is a view showing the casing 2 of the joint A1, wherein (a) is a partially sectional side view and (b) is a front view. FIG. 3 is a view showing the meshing piece 3 of the joint A1, where (a) is a side view and (b) is a front view.
[0047]
As shown in FIG. 1, the joint A1 of the present embodiment includes a set of one-side joint bodies 1, 1 fixed to each connected member B and arranged to face each other, and the one-side joint body 1, 1 in the same set. And a fastening shaft 4 which is fitted through an elastic body 5 so as to be able to advance and retract.
[0048]
The one-side joint body 1 includes a casing 2 fixed to the connected member B and a meshing piece 3 housed in the casing 2.
[0049]
As shown in FIGS. 1 and 2, the casing 2 includes a fixing portion 6 that is fixed to the coupled member B and a meshing piece storage portion 7 that accommodates the meshing piece 3. The fixing portion 6 is a pipe. The engaging piece storage portion 7 is formed in a column shape that is approximately half the thickness of the fixing portion 6, and is formed on one side of the leading end surface of the fixing portion 6. It is connected to half in one.
[0050]
Of the inner and outer surfaces of the meshing piece storage portion 7, an inner surface facing the center of the fixed portion 6 is provided with a meshing piece arrangement recess 8 having a circular shape in front view for accommodating the meshing piece 3. A shaft fitting hole 9 for fitting the fastening shaft 4 toward the outer surface of the meshing piece storage portion 7 is formed in the center of the inner surface of the concave portion 8 for arranging the meshing piece. In addition, a plurality of screw holes 10 for attaching screws 11 for fixing the engaging piece 3 to the casing 2 are formed on a circle centered on the coaxial fitting hole 9. In particular, on the inner peripheral surface of the shaft fitting hole 9, a female screw portion 9a that is screwed with a male screw portion 21a of the fastening shaft 4 described later is formed. The female thread portion 9a can be formed only in the shaft fitting hole 9 of the one-side joint body 1 in which the distal end side of the fastening shaft 4 is fitted.
[0051]
Further, in this embodiment, since the connected member B to be connected by the joint A1 is formed in a pipe shape as described above, the fixed portion 6 is formed in a column shape and the fixed portion 6 is inserted and fixed inside the connected member B. However, the present invention is not limited to this, and the fixing portion 6 can be appropriately deformed into a shape that can be easily fixed to the connected member B in accordance with the shape of the connected member B. The fixing method can be appropriately selected by using, screwing the fixing portion 6 and the connected member B, or using an adhesive.
[0052]
As shown in FIG. 3, the meshing piece 3 has a disc-shaped gear base 12 protruding at a right angle with the gear base 12 to form a gear forming portion 13, and a chevron at the tip of the gear forming portion 13. An annular meshing portion 14 is formed. The gear base 12 is provided with a shaft fitting hole 15 for fitting the fastening shaft 4 in the center, and the meshing piece 3 is placed on a circle centering on the coaxial fitting hole 15 in the casing. A plurality of screw holes 16 for attaching screws 11 to be fixed to 2 are formed.
[0053]
As shown in FIG. 1, the mesh piece 3 stores the mesh piece 3 in the mesh piece storage portion 7 of the casing 2 so that the side on which the annular mesh portion 14 is provided faces the center of the fixed portion 6. It is formed by fixing the piece 3 to the casing 2 with screws 11.
[0054]
As shown in FIG. 1, the fastening shaft 4 includes a shaft body 17 that is a screw shaft, and a rotating lever 18 that is connected to the shaft body 17 so as to rotate the coaxial body 17 about the axis.
[0055]
The shaft main body 17 is a cylindrical first main body portion 20 formed in a size that cannot be inserted into the engagement piece 3 and the shaft fitting holes 9 and 15 of the casing 2 on one end surface of a main body base portion 19 formed in a disc shape. Of the columnar second main body portion 21 formed in a size that can be inserted into the engagement piece 3 and the shaft fitting holes 9 and 15 of the casing 2 at the front end of the first main body portion 20. The base end is connected. Further, a male screw portion 21 a that is screwed with a female screw portion 9 a formed on the inner peripheral surface of the shaft fitting hole 9 of the casing 2 is formed on the distal end side of the second main body portion 21.
[0056]
The rotating lever 18 is formed in a rod shape and is fitted to the peripheral surface of the main body base portion 19 so as to be able to advance and retreat, and is provided with enormous portions 22 for preventing it from coming off at both ends.
[0057]
The elastic body 5 is formed in a cylindrical shape and is wound around the first main body portion 20 of the tightening shaft 4. One end is the main body base portion 19 of the shaft main body 17 and the other end is the one-side joint body 1. It is in contact.
[0058]
In particular, the elastic body 5 is formed so as to be longer than the first main body portion 20 when extended. Therefore, when the second main body portion 21 of the fastening shaft 4 is inserted into the one-side joint bodies 1, 1, the elastic body 5 is sandwiched between the body base portion 19 of the fastening shaft 4 and the one-side joint body 1. It contracts and acts as a biasing body that biases the main body base 19 and the one-side joint body 1 in the direction of separating them. At this time, the main body base portion 19 acts as a biasing body locking projection that locks the elastic body 5 that is a biasing body.
[0059]
The joint A1 has the above-described configuration. When the connected member B is connected by the joint A1, the casing 2 of the one-side joint body 1 is inserted and fixed to each of the two connected members B to be connected, and both the one-side joints are connected. The meshing pieces 3 and 3 of the bodies 1 and 1 are opposed to each other. At this time, the annular meshing portion 14 is located on the facing surface of each meshing piece 3.
[0060]
Then, the engagement pieces 3 and 3 are engaged with each other at a desired position, and the tightening shaft 4 provided with the elastic body 5 is inserted into the shaft fitting ports 9 and 15 of the one-side joint bodies 1 and 1, and the tightening is performed. The shaft body 17 of the shaft 4 is rotated around the axis by the rotation lever 18, and the male screw portion 21 a of the tightening shaft 4 is screwed into the female screw portion 9 a provided in the shaft fitting hole 9 of the one-side joint body 1.
[0061]
At this time, the meshing pieces 3 and 3 of the one-side joint bodies 1 and 1 are tightened while being supported by the tightening shaft 4 so as to be in meshing contact with each other, so that both the connected members B and B can be securely connected at a predetermined connection angle. Can be fixed to.
[0062]
Moreover, the elastic body 5 wound around the first body portion 20 of the fastening shaft 4 is tightened as the second body portion 21 of the fastening shaft 4 is inserted into the one-side joint bodies 1 and 1. Since the main body base 19 and the one-side joint body 1 of the shaft 4 are narrowed and contracted, and the main body base 19 and the one-side joint body 1 are pressed away from each other, the tightening shaft 4 is rotated by the elastic body 5. The pressure is received from a direction orthogonal to the direction. Accordingly, it is possible to prevent the fastening shaft 4 from automatically rotating due to such pressure, and to maintain the meshing state between the meshing pieces 3, 3, and the one-side joint body 1 provided with each meshing piece 3, It is possible to prevent the connection angle between the ones from shifting.
[0063]
Further, the one-side joint body 1 can be pressed against the other one-side joint body 1 by the pressure from the elastic body 5, and the meshing pieces 3, 3 of both the one-side joint bodies 1, 1 are more firmly engaged with each other. Can do.
[0064]
Further, in this embodiment, as described above, the meshing piece storage portion 7 of the casing 2 is formed to be approximately half the thickness of the fixed portion 6, so that the annular meshing portions 14, 14 of the one-side joint bodies 1, 1 are 1, the meshing piece storage portion 7 of the one side joint body 1 is positioned on the front end surface of the fixing portion 6 of the other side joint body 1, as shown in FIG. The one-side joint bodies 1 and 1 and the two connected members B and B are positioned on the same straight line when viewed from the side.
[0065]
Thus, this joint A1 arranges both one-side joint bodies 1 and 1 in the same straight line when viewed from the side and eliminates the unevenness of the connecting portion of both one-side joint bodies 1 and 1, so In addition, it is possible to prevent a load from being applied by being caught or collided with an object, and the shape of the joint A1 can be made compact without taking up space.
[0066]
Next, when changing the connecting angle between the two connected members B, the shaft body 17 is rotated in the direction opposite to the tightening direction by the rotating lever 18 to loosen the tightening by the tightening shaft 4, and the one-side joint Disengage the meshing pieces 3, 3 of the body 1, 1. Even in this case, as described above, the tightening shaft 4 receives pressure from the direction orthogonal to the rotation direction by the elastic body 5, so that the tightening shaft 4 is tightened when the rotation shaft 18 is not operated. It is possible to prevent the shaft 4 from rotating automatically.
[0067]
And after rotating the to-be-connected member B and changing the connecting angle of both to-be-connected members B and B suitably, the shaft main body 17 is again rotated in the tightening direction by the turning lever 18 and the both to-be-connected members B and B are rotated. Fix the connection angle.
[0068]
In this way, the present joint A1 is simple because the connecting angles of both the connected members B and B are prevented from shifting by engaging the engaging pieces 3 and 3 provided in the one-side joint bodies 1 and 1 with each other. Even if it is a simple structure, the connection angle of both to-be-connected members B and B can be fixed reliably.
[0069]
In addition, since the connecting angle of both the connected members B and B is changed by shifting the meshing positions of the annular meshing portions 14 and 14 of the meshing pieces 3 and 3, the meshing positions of the meshing pieces 3 and 3 are made one. The connection angle can be changed each time the teeth are shifted, and the connection angle can be finely adjusted.
[0070]
In particular, in this embodiment, the tightening shaft 4 is a screw shaft with the rotation lever 18 connected thereto, so that both the meshing pieces 3 and 3 can be tightened or loosened with a simple structure, and it is difficult to break and is manufactured at low cost. In addition to the possible joint A1, it is possible to adjust the fastening force between the meshing pieces 3 and 3 by adjusting the insertion length of the fastening shaft 4 into the one-side joint body 1.
[0071]
Further, since the annular meshing portion 14 having complicated processing is provided in the meshing piece 3 which is separate from the casing 2, the annular meshing portion 14 can be easily processed, and only the meshing piece 3 can be processed by pressing. It becomes possible to mass-produce by machining or casting, and the one-side joint body 1 can be manufactured without cost. In addition, the engagement piece 3 with high friction and wear is manufactured with a strong member such as steel, while the casing 2 is manufactured with a light member such as aluminum and resin to reduce the weight and rust prevention of the one-side joint body 1. Can do.
[0072]
Next, the one side joint body 1-2 as another Example is demonstrated based on FIG.4 and FIG.5. In addition, about the structure similar to the said one side joint body 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.
[0073]
FIG. 4 is a view showing a casing 2-2 as another embodiment, in which (a) is a partially sectional side view and (b) is a front view. FIG. 5 is a view showing a meshing piece 3-2 as another embodiment, in which (a) is a partially sectional side view and (b) is a front view.
[0074]
In this embodiment, the engaging piece disposing recess 8-2 of the casing 2-2 is formed in a hexagonal shape when viewed from the front, and the engaging piece 3-2 is viewed from the front corresponding to the engaging piece disposing recess 8-2. It has a hexagonal shape.
[0075]
That is, the casing 2-2 includes a fixing portion 6 that is fixed to the coupled member B and a meshing piece storage portion 7 for housing the meshing piece 3-2, as in the embodiment shown in FIGS. The fixing portion 6 is formed in a columnar shape that can be inserted and fixed at the tip of the pipe-shaped connected member B, and the meshing piece storage portion 7-2 is approximately half the thickness of the fixing portion 6. It is formed in a columnar shape and is continuously provided integrally with one half of the front end surface of the fixing portion 6.
[0076]
The engagement piece disposing recess 8-2 provided on the inner surface of the engaging piece storage portion 7-2 is formed in a hexagonal shape when viewed from the front, and is formed on the back surface of the engaging piece disposing recess 8-2. The center portion is provided with a shaft fitting hole 9 for fitting the fastening shaft 4 toward the outer surface of the meshing piece storage portion 7-2, and a circle centered on the coaxial fitting hole 9. A plurality of screw holes 10 for mounting screws 11 for fixing the meshing piece 3-2 to the casing 2-2 are formed on the top. Also in the present embodiment, the inner peripheral surface of the shaft fitting hole 9 is formed with a female screw portion 9a that is screwed with the male screw portion 21a of the fastening shaft 4.
[0077]
Further, as shown in FIG. 5, the meshing piece 3-2 has a short cylindrical gear forming portion 13 projecting from a gear base portion 12-2 formed in a hexagonal plate shape when viewed from the front. A chevron-shaped annular engagement portion 14 is formed at the tip of 13. The gear base 12-2 is provided with a shaft fitting hole 15 for fitting the fastening shaft 4 at the center, and a meshing piece 3− on a circle centered on the coaxial fitting hole 15. A plurality of screw holes 16 for attaching screws 11 for fixing 2 to the casing 2-2 are formed.
[0078]
Also in this embodiment, like the one-side joint body 1 shown in FIG. 1, the engaging piece 3-2 is disposed on the casing 2-2 so that the side where the annular engaging portion 14 is provided faces the center of the fixed portion 6. The one-side joint body 1-2 is formed by housing the meshing piece storage portion 7-2 and fixing the meshing piece 3-2 to the casing 2-2 with screws 11.
[0079]
As described above, in this embodiment, the engaging piece arranging recess 8-2 and the engaging piece 3-2 housed in the engaging piece arranging recess 8-2 of the casing 2-2 are formed in a hexagonal shape when viewed from the front. Therefore, even if the engagement piece 3-2 is rotated in the circumferential direction inside the engagement piece arrangement recess 8-2, the corner of the engagement piece 3-2 is used for arrangement of the engagement piece of the casing 2-2. Tightening fitted in the shaft fitting hole 15 without being able to rotate in contact with the corner of the recess 8-2, even if the meshing piece 3-2 is not fixed to the casing 2-2 with the screw 11. The interlocking piece 3-2 can be prevented from slidingly rotating inside the engaging piece disposing recess 8-2 in conjunction with the rotation of the shaft 4.
[0080]
Therefore, the meshing piece 3-2 can be securely housed and fixed in the casing 2-2, and the connection angle between the two connected members B and B connected by the joint A1 can be prevented from shifting.
[0081]
In addition, the shape of the engagement piece arrangement recess and the engagement piece accommodated in the engagement piece arrangement recess is not limited to the hexagonal shape in front view, and the engagement piece arrangement recess is formed in a polygonal shape in front view. If the engaging piece is formed in a polygonal shape corresponding to the engaging piece disposing recess, it is possible to prevent the engaging piece from sliding and rotating inside the engaging piece disposing recess.
[0082]
Next, a casing 2-3 as another embodiment will be described with reference to FIG. In the present embodiment, the same reference numerals are assigned to the same components as those of the casing 2 of the one-side joint body 1, and the description thereof is omitted.
[0083]
FIG. 6 is a view showing a casing 2-3 as another embodiment, in which (a) is a partially sectional side view, and (b) is a front view.
[0084]
In this embodiment, as in the embodiment shown in FIGS. 2 and 4, the fixing portion 6 for fixing the casing 2-3 to the connected member B and the meshing piece storage portion 7− for storing the meshing piece 3 are used. 3, the fixing portion 6 is formed in a column shape that can be inserted and fixed at the tip of the pipe-shaped connected member B, while the meshing piece storage portion 7-3 is a casing shown in FIGS. 2 and 4. Unlike 2 and 2-2, as shown in FIG. 6, it is formed in a columnar shape having the same thickness as that of the fixed portion 6, and is integrally connected to the tip of the fixed portion 6.
[0085]
Therefore, when the annular meshing portions 14 and 14 of the one-side joint bodies 1 and 1 are engaged with each other, the both-side joint bodies 1 and 1 are juxtaposed in a side view, and the both-side joint bodies 1 and 1 are respectively connected. The fixed connected members B and B are also juxtaposed in side view.
[0086]
Thus, since the casing 2-3 in this embodiment has the same thicknesses of the fixed portion 6 and the meshing piece storage portion 7, it is easy to mold and improves the strength of the meshing piece storage portion 7 so that the meshing piece 3 is improved. Can be securely stored and supported.
[0087]
Also in this embodiment, the inner surface of the engagement piece storage recess 8 provided on the inner surface of the engagement piece storage portion 7-3 is at the center and the outer surface of the engagement piece storage portion 7-3. A shaft fitting hole 9 for fitting the tightening shaft 4 is formed, and a screw 11 for fixing the meshing piece 3 to the casing 2-3 on a circle centering on the coaxial fitting hole 9. A plurality of screw holes 10 for mounting are provided. Further, on the inner peripheral surface of the shaft fitting hole 9, a female screw portion 9 a that is screwed with the male screw portion 21 a of the fastening shaft 4 is formed.
[0088]
Next, a joint A2 as another embodiment will be described with reference to FIGS.
[0089]
FIGS. 7A and 7B are diagrams showing a joint A2 as another embodiment, in which FIG. 7A is a partially sectional side view, and FIG. 7B is a front view. Moreover, FIG. 8 is a figure which shows the one-side joint body 1 in joint A2 as another Example, (a) is a partial cross section side view, (b) is a front view.
[0090]
As shown in FIG. 7, the joint A2 of the present embodiment includes a set of one-side joint bodies 31 and 31 fixed to each connected member B and arranged to face each other via an elastic body 35, and the one set of one-side. And a fastening shaft 34 fitted to the joint bodies 31 and 31 so as to freely advance and retract.
[0091]
The one-side joint body 31 includes a casing 32 that is fixed to the connected member B and a meshing piece 33 that is connected to the casing 32.
[0092]
As shown in FIGS. 7 and 8, the casing 32 includes a fixing portion 36 that is fixed to the coupled member B and a meshing piece support portion 37 that supports the meshing pieces 33, 33. The engagement piece support portion 37 is formed in a column shape that is approximately half the thickness of the fixed portion 36 and is formed in a column shape that can be inserted and fixed at the distal end portion of the pipe-shaped connected member B. Are integrally connected to one half of each.
[0093]
Of the inner and outer surfaces of the meshing piece support portion 37, an inner surface facing the center of the fixed portion 36 is provided with a concave portion 38 for elastic body arrangement that is circular in front view for housing the elastic body 35. A shaft fitting hole 39 for fitting the fastening shaft 34 toward the outer surface of the engagement piece support portion 37 is formed in the inner surface of the recess 38 for arranging the elastic body. Has been established.
[0094]
When the one-side joint bodies 31, 31 are arranged to face each other so as to mesh the meshing pieces 33, 33 of the one-side joint bodies 31, 31, the elastic body provided in the casing 32 of the one-side joint body 31 The mounting recess 38 and the elastic body mounting recess 38 provided in the casing 32 of the other one-side joint body 31 are combined to form a cylindrical storage space 53 in which the elastic body 35 can be stored. I have to.
[0095]
Further, a base end of a cylindrical shaft fixing cam 54 having an inclined tip is attached to the outer surface of the meshing piece support portion 37 of one casing 32. The fastening shaft 34 is fitted into a shaft fitting hole 39 formed in the meshing piece support portion 37 of the casing 32 after the inside of the shaft fixing cam 54 is fitted. In the figure, reference numeral 54a denotes an inclined tip portion of the shaft fixing cam 54, and 54b denotes an inclined base portion of the shaft fixing cam 54.
[0096]
Also in this embodiment, the fixing portion 36 can be appropriately deformed into a shape that can be easily fixed to the connected member B in accordance with the shape of the connected member B. For fixing, a fixing shaft can be used or fixed. The fixing method can be appropriately selected by screwing the portion 36 and the member to be connected B or using an adhesive.
[0097]
As shown in FIG. 8, the engagement piece 33 is formed in an annular shape, and has an angled engagement portion 44 having a mountain blade shape on one surface thereof, and an elastic body arrangement on the inner surface of the engagement piece support portion 37. It is integrally connected to the peripheral portion of the installation recess 38. The engagement piece 33 can also be provided directly on the inner surface of the engagement piece support portion 37.
[0098]
The one-side joint body 31 has the above-described configuration, and the one-side joint bodies 31 and 31 make the meshing pieces 33 and 33 face each other. At this time, the annular engagement portion 44 is positioned on the facing surface of each engagement piece 33.
[0099]
As shown in FIG. 7, the fastening shaft 34 includes a shaft main body 47 that is a pin body, and a rotation lever 48 that is connected to the shaft main body 47 so as to rotate the coaxial main body 47 about the axis.
[0100]
The shaft main body 47 has a protruding portion 56 for preventing it from coming off at the end edge of the rod-shaped main body portion 55 fitted in the shaft fitting holes 39, 39 of the one-side joint bodies 31, 31 via the shaft fixing cam 54. Are connected.
[0101]
The rotation lever 48 is formed in a rod shape and is attached at right angles to the base end peripheral surface of the main body portion 55 of the shaft main body 47, and is provided with a huge portion 52 for preventing slippage at the distal end. When attaching the rotating lever 48 to the main body portion 55 of the shaft main body 47, when the engaging pieces 33, 33 of the one-side joint bodies 31, 31 are engaged with each other, the peripheral surface of the rotating lever 48 is the shaft. The fixed cam 54 is attached at a position where it comes into contact with the inclined tip 54a. Then, by engaging the rotating lever 48 with the inclined tip end 54a of the shaft fixing cam 54, the engaging pieces 33, 33 of the one-side joint bodies 31, 31 can be engaged and brought into close contact with each other. By positioning the shaft fixing cam 54 on the inclined base 54b side, the meshing pieces 33, 33 of the one-side joint bodies 31, 31 can be separated from each other.
[0102]
As described above, the joint A2 in this embodiment is configured such that the one-side joint bodies 31, 31 are arranged by arranging the one-side joint bodies 31, 31 between the protruding portion 56 of the fastening shaft 34 and the rotation lever 48. It is supported by the fastening shaft 34 so that it cannot be separated.
[0103]
The elastic body 35 is formed in a cylindrical shape and is wound around the fastening shaft 34 inside the storage space 53.
[0104]
In particular, the elastic body 35 is formed to be longer than the thickness of the storage space 53 when the engaging pieces 33, 33 of the one-side joint bodies 31, 31 are engaged with each other at the time of extension. Therefore, when the fastening shaft 34 is locked to the inclined tip portion 54a of the shaft fixing cam 54, the elastic body 35 is narrowed by the back surfaces of the elastic body disposing recesses 38, 38, and the storage space 53 It contracts inside and acts as a biasing body that biases the meshing pieces 33, 33 in a direction separating them.
[0105]
The joint A2 is configured as described above. When the connected member B is connected by the joint A2, the casing 32 of the one-side joint body 31 is inserted and fixed to each of the two connected members B and B to be connected and tightened. While rotating the rotation lever 48 of the attached shaft 34 around the axis line, the rotation lever 48 is moved to the inclined tip end 54a side of the shaft fixing cam 54, and the elastic body 35 stored in the storage space 53 is contracted. The rotating lever 48 is brought into contact with and locked to the inclined front end 54a of the shaft fixing cam 54 so that the meshing pieces 33, 33 of the one-side joint bodies 31, 31 are meshed at a desired position.
[0106]
In this manner, the abutment lever 48 is brought into contact with and locked to the inclined tip portion 54a of the shaft fixing cam 54, whereby the fastening shaft 34 comes closest to the inclined tip portion 54a side of the shaft fixing cam 54. A protrusion 56 provided at the end edge of the shaft body 47 of 34 is in contact with the one-side joint body 31. Therefore, the tightening shaft 34 cannot advance or retreat in the axial direction, and the meshing pieces 33, 33 of the one-side joint bodies 31, 31 are tightly tightened by the projecting portion 56 of the tightening shaft 34 and the rotating lever 48. And meshing closely. Accordingly, both the connected members B and B can be reliably fixed at a predetermined connecting angle.
[0107]
Also in the present embodiment, as described above, the engagement piece support portion 37 of the casing 32 is formed to be approximately half the thickness of the fixed portion 36, so that the annular engagement portions 44, 44 of the one-side joint bodies 31, 31 are formed. When engaging each other, as shown in FIG. 7, the engagement piece support portion 37 of the one side joint body 31 is located on the front end surface of the fixing portion 36 of the other side joint body 31, Both the one-side joint bodies 31 and 31 and the both connected members B and B are positioned in the same straight line in a side view.
[0108]
Therefore, this joint A2 has no unevenness in the connecting part of both one-side joint bodies 31, 31 and can prevent a user or an object from being caught or collided with the connecting part and applying a load. It is compact without taking up space.
[0109]
Next, when changing the connecting angle between the two connected members B, B, the rotating lever 48 of the tightening shaft 34 is rotated around the axis, and the rotating lever 48 is inclined by the shaft fixing cam 54. It moves to the base 54b side, loosens the tightening by the tightening shaft 34, and releases the meshing pieces 33, 33 of the one-side joint bodies 31, 31 from each other. Then, after rotating the connected member B and appropriately changing the connecting angle of both the connected members B, B, the rotating lever 48 is rotated again around the axis line, and the rotating lever 48 is fixed to the shaft fixing cam 54. The two connected members B and B are fixed by abutting and engaging with the inclined tip end portion 54a and engaging the engaging pieces 33 and 33 of the one-side joint bodies 31 and 31 with each other.
[0110]
In particular, in this embodiment, since the elastic body 35 is housed in the housing space 53 formed by the elastic body placement recesses 38, 38 of the one-side joint bodies 31, 31, the pivot lever 48 is pivoted. When the fixed cam 54 is moved to the inclined base portion 54b side, the contracted elastic body 35 extends and presses the one-side joint bodies 31 and 31 in a separating direction. Therefore, the meshing pieces 33, 33 of the one-side joint bodies 31, 31 can be quickly separated.
[0111]
Thus, also in the present joint A2, the engagement angles of both the connected members B, B are prevented from shifting by engaging the engaging pieces 33, 33 provided in the one-side joint bodies 31, 31, so The connecting angle between the two connected members B and B can be reliably fixed with a simple configuration.
[0112]
In addition, since the connecting angle of both the connected members B and B is changed by shifting the engaging position of the engaging pieces 33 and 33, the connecting angle is changed every time the engaging position of the engaging pieces 33 and 33 is shifted by one tooth. The connection angle can be finely adjusted.
[0113]
In particular, in this embodiment, the fastening shaft 34 is a pin body provided with a rotating lever 48, and the fastening shaft 34 is fitted to the meshing pieces 33, 33 via the shaft fixing cam 54. With the simple structure, both the meshing pieces 33, 33 can be tightened or loosened, and the joint A2 which is hard to break and can be manufactured at low cost can be obtained. In addition, since the tightening force between the meshing pieces 33, 33 is changed depending on the positional relationship between the tightening shaft 34 and the shaft fixing cam 54, a constant tightening force can be obtained by moving the tightening shaft 34 to a predetermined position. The two engaging pieces 33 and 33 can be tightened with each other, the connecting members B and B can be easily connected, and the clamping force of both the engaging pieces 33 and 33 can be obtained by shifting the fastening shaft 34 from the predetermined position. Can be loosened, and the connecting angle between the two connected members B and B can be easily changed.
[0114]
Further, also in the present embodiment, the annular engagement portion 44 having complicated processing is provided in the engagement piece 33 that is separate from the casing 32, and the engagement piece 33 is integrally connected to the casing 32. Therefore, it becomes easy to process the annular engagement portion 44, and only the engagement piece 33 can be mass-produced by pressing, machining, casting, etc., and the one-side joint body 31 is manufactured without cost. be able to. In addition, the friction piece and the wear-out engagement piece 33 are manufactured with a strong member such as steel, while the casing 32 is manufactured with a light member such as aluminum and resin to reduce the weight and rust prevention of the one-side joint body 31. Can do.
[0115]
As described above, the engagement piece 33 can be directly projected on the inner surface of the engagement piece support portion 37 of the casing 32. In this case, since the meshing piece 33 and the casing 32 are integrated, there is no possibility that the meshing piece 33 and the casing 32 will be separated during use of the joint A2, and the joint A2 should be strong and less damaged. Can do.
[0116]
Next, a joint A3 as another embodiment will be described with reference to FIG.
[0117]
FIG. 9 is a view showing a joint A3 as another embodiment, in which (a) is a partially sectional side view and (b) is a front view. As shown in the drawing, in this embodiment, the fastening shaft 34 of the joint A2 is changed to a screw shaft like the fastening shaft 4 of the joint A1.
[0118]
That is, in this embodiment, the fastening shaft 84 includes a shaft body 87 that is a screw shaft, and a rotation lever 88 that is connected to the shaft body 87 so as to rotate the coaxial body 87 about the axis.
[0119]
The shaft main body 87 is large enough to be inserted into the shaft fitting hole 39 of the casing 32 at the tip of a cylindrical first main body portion 80 formed in a size that cannot be inserted into the shaft fitting hole 39 of the casing 32. The base end of the column-shaped second main body portion 81 formed in this way is continuously provided.
[0120]
Moreover, a male threaded portion 81a is formed on the distal end side of the second main body 81, and a female threaded portion 39a that is screwed with the male threaded portion 81a is formed on the inner peripheral surface of the shaft fitting hole 39 of the casing 32. .
[0121]
The rotation lever 88 is formed in a rod shape and is attached to the base end peripheral surface of the first main body portion 80 at a right angle, and an enormous portion 82 for preventing slippage is provided at the tip.
[0122]
The configuration of the joint A3 other than those described above is the same as that of the joint A2, and the same reference numerals are given and description thereof is omitted.
[0123]
When the connected member B is connected by the joint A3 having the above-described configuration, the casing 32 of the one-side joint body 31 is inserted and fixed to each of the two connected members B and B to be connected. The meshing pieces 33, 33 are made to face each other. At this time, the annular engagement portion 44 is positioned on the facing surface of each engagement piece 33.
[0124]
Then, the engagement pieces 33, 33 are engaged with each other at a desired position, and the fastening shaft 84 is inserted into the shaft fitting openings 39, 39 and the elastic body 35 of the one-side joint bodies 31, 31, The shaft main body 87 is rotated around the axis by the rotation lever 88, and the male screw portion 81a of the fastening shaft 84 is screwed into the female screw portion 39a provided in the shaft fitting hole 39 of the one-side joint body 31.
[0125]
At this time, the meshing pieces 33, 33 of the one-side joint bodies 31, 31 are tightened while being pivotally supported by the tightening shaft 84 so as to be in meshing contact with each other, so that both the connected members B, B are securely connected at a predetermined connection angle. Can be fixed to.
[0126]
Next, when changing the connection angle of the two connected members B, the shaft body 87 is rotated in the direction opposite to the tightening direction by the turning lever 88 to loosen the tightening by the tightening shaft 84, and the one-side joint The meshing pieces 33 and 33 of the bodies 31 and 31 are disengaged from each other.
[0127]
In particular, in this embodiment, the elastic body 35 is housed in the housing space 53 formed by the elastic body disposing recesses 38, 38 of the one-side joint bodies 31, 31, so that the fastening by the fastening shaft 84 is performed. Is loosened, the contracted elastic body 35 is extended and pressed in the direction of separating the one-side joint bodies 31, 31. Therefore, the meshing pieces 33, 33 of the one-side joint bodies 31, 31 can be quickly separated.
[0128]
And after rotating the to-be-connected member B and changing the connection angle of both the to-be-connected members B and B suitably, the shaft main body 87 is again rotated in the tightening direction by the turning lever 88 and the both to-be-connected members B and B are rotated. Fix the connection angle.
[0129]
In particular, in this embodiment, the fastening shaft 84 is a screw shaft with the rotation lever 88 connected thereto, so that both the meshing pieces 33 and 33 can be tightened or loosened with a simple structure, and it is difficult to break and is manufactured at low cost. In addition to the possible joint A3, the insertion force of the fastening shaft 84 into the one-side joint body 31 can be adjusted to adjust the fastening force between the meshing pieces 33, 33.
[0130]
Next, a joint A4 as another embodiment will be described with reference to FIG.
[0131]
10A and 10B are diagrams showing a joint A4 as another embodiment, in which FIG. 10A is a partially sectional side view, and FIG. 10B is a front view. As shown in the figure, in this embodiment, the elastic body 35 of the joint A2 is disposed outside the one-side joint body 31 like the elastic body 5 of the joint A1.
[0132]
That is, in the present embodiment, the elastic body 95 is formed in a cylindrical shape and is wound around the main body portion 55 of the shaft main body 47 of the fastening shaft 34, and one end of the elastic body 95 on the projecting portion 56 of the shaft main body 47, The other end is in contact with the one-side joint body 31.
[0133]
In particular, in this embodiment, the end side of the main body portion 55 of the shaft main body 47 is extended, and an elastic body disposing recess 98 is formed on the outer surface of the meshing piece support portion 37 of the casing 32, so that the shaft main body 47 A predetermined interval is secured between the protruding portion 56 and the one-side joint body 31. Therefore, the elastic body 95 can be easily disposed between the protruding portion 56 of the coaxial main body 47 and the one-side joint body 31.
[0134]
The structure of the joint A4 other than the above is the same as that of the joint A2, and the same reference numerals are given and description thereof is omitted.
[0135]
When the connected member B is connected by the joint A4 having the above configuration, the casing 32 of the one-side joint body 31 is inserted and fixed to each of the two connected members B and B to be connected, and the fastening shaft 34 is rotated. The lever 48 is pivoted about the axis, and the pivot lever 48 is brought into contact with and locked to the inclined tip 54a side of the shaft fixing cam 54, so that the meshing pieces 33, 33 of the one-side joint bodies 31, 31 are desired. Engage in position.
[0136]
As described above, the elastic body 95 wound around the body portion 55 of the fastening shaft 34 by bringing the rotating lever 48 into contact with and engaging with the inclined tip portion 54a of the shaft fixing cam 54 is The projecting portion 56 and the one-side joint body 31 are contracted by being narrowed by pressure, and the projecting portion 56 and the one-side joint body 31 are pressed away from each other. Therefore, one one-side joint body 31 is pressed against the other one-side joint body 31, and the meshing pieces 33, 33 of both the one-side joint bodies 31, 31 are in meshing contact with each other. Accordingly, both the connected members B and B can be reliably fixed at a predetermined connecting angle.
[0137]
In addition, the fastening shaft 34 receives pressure from the direction orthogonal to the rotational direction by the elastic body 95, so that the fastening shaft 34 is prevented from automatically rotating by the pressure, and the meshing piece 33 is prevented. , 33 can be held, and the connection angle between the one-side joint bodies 31, 31 provided with the respective engagement pieces 33 can be prevented from shifting.
[0138]
Next, when changing the connecting angle between the two connected members B, B, the rotating lever 48 of the tightening shaft 34 is rotated around the axis, and the rotating lever 48 is inclined by the shaft fixing cam 54. It moves to the base part 54b side, the contraction of the elastic body 95 is loosened, and the meshing pieces 33, 33 of the one-side joint bodies 31, 31 are disengaged. Then, after rotating the connected member B and appropriately changing the connecting angle of both the connected members B, B, the rotating lever 48 is rotated again around the axis line, and the rotating lever 48 is fixed to the shaft fixing cam 54. The two connected members B and B are fixed by abutting and engaging with the inclined tip end portion 54a and engaging the engaging pieces 33 and 33 of the one-side joint bodies 31 and 31 with each other.
[0139]
In particular, in this embodiment, the fastening shaft 34 is a pin body provided with a rotating lever 48, and the fastening shaft 34 is fitted to the meshing pieces 33, 33 via the shaft fixing cam 54. With this structure, both the meshing pieces 33, 33 can be tightened or loosened, and the joint A4 which is hard to break and can be manufactured at low cost can be obtained. In addition, since the tightening force between the meshing pieces 33, 33 is changed depending on the positional relationship between the tightening shaft 34 and the shaft fixing cam 54, a constant tightening force can be obtained by moving the tightening shaft 34 to a predetermined position. The two engaging pieces 33 and 33 can be tightened with each other, the connecting members B and B can be easily connected, and the clamping force of both the engaging pieces 33 and 33 can be obtained by shifting the fastening shaft 34 from the predetermined position. Can be loosened, and the connecting angle between the two connected members B and B can be easily changed.
[0140]
In the embodiment described above, the joint is provided with a casing for housing the meshing piece, and the meshing piece is disposed at the tip of the connected member via the casing. It is also possible to fix the meshing piece directly to the tip end portion (connection end portion) of the connected member without providing it. In that case, the front end portion (connecting end portion) of the connected member is formed in the same shape as the engaging piece storage portion of the one-side joint body and the engaging piece is attached, or the front end portion (connected portion) of the connected member is connected. The engagement piece may be attached as it is without particularly deforming the end portion.
[0141]
Next, the case where the above joint is used in an in-vehicle device mounting apparatus S that holds devices such as electric devices and communication devices in the vehicle will be described with reference to FIGS. Here, the joint A1 shown in FIGS. 1 to 4 will be described as an example, but any of the joints described in the above embodiment can be used for the in-vehicle device mounting apparatus S.
[0142]
FIG. 11 is an explanatory view showing a use state when the joint according to the present invention is used in the in-vehicle device mounting apparatus S, FIG. 12 is a front view of the in-vehicle apparatus mounting device S using the joint according to the present invention, 13 is a rear view thereof, FIG. 14 is a right side view thereof, and FIG. 15 is a plan view thereof.
[0143]
As shown in the figure, the in-vehicle device mounting device S is disposed between the floor C1 and the ceiling C2 inside the car C so as to be supported in an up-and-down manner, and is movable up and down to the support rod 60. The attached connecting tool 66, the first support arm portion 61 composed of a parallel link that is connected to the connecting device 66 through the first joint A1-1 and can be moved in parallel up and down, and the tip of the first support arm portion 61 The second support arm portion 62 is connected via the second joint A1-2 and the third joint A1-3, and the device mounting base 63 is attached to the tip of the second support arm portion 62.
[0144]
The support rod 60 includes first and second support rod main bodies 64, 64 extending in the vertical direction, and upper and lower connecting members 65, 67 extending in the horizontal direction at the upper and lower ends of both. At the same time, a lower end of an upper support 68 formed in a U-shape in side view is attached to the upper ends of the first and second support rod main bodies 64 and 64, respectively, and ceilings in the vehicle are attached to both upper ends of the upper support 68. A disc-shaped contact buffer 69 for improving contact with the floor surface C1 in the vehicle at the lower ends of the first and second support rod main bodies 64, 64 while mounting a disc-shaped contact buffer 69 for improving contact with C2. 69 is installed respectively. In the figure, reference numeral 64a denotes a pin fitting hole for attaching a fixing pin 66a of the connector 66, which will be described later, and a plurality of holes are formed in the first and second support rod main bodies 64, 64 at predetermined intervals in the vertical direction. is doing.
[0145]
The connector 66 extends in the horizontal direction, and the fixing pins 66a are detachably attached to both ends thereof, and the fixing pins 66a are attached to the pin fitting holes of the first and second support rod bodies 64 and 64, respectively. It is attached to the support rod 60 so as to be movable up and down by being fitted to 64a and 64a.
[0146]
The first joint A1-1 that connects the connection tool 66 and the first support arm portion 61 attaches the fixing part 6 of one one-side joint body 1 to the connection tool 66, and also fixes the fixing part 6 of the other one-side joint body 1. Is attached to a first support arm portion 61, which will be described later, and a fastening shaft 4 extending in the vertical direction is fitted to the meshing pieces 3, 3 of the one-side joint bodies 1, 1.
[0147]
The first support arm 61 is composed of upper and lower arm bodies 70 and 71 that constitute parallel links that can move up and down in parallel, and the first joint A1- is provided at the base ends of the upper and lower arm bodies 70 and 71. A fixing portion 6 of one one-side joint body 1 of 1 is attached, and a second joint A1- interposed between a second support arm portion 62, which will be described later, at the tip of the upper and lower arm bodies 70, 71. 2 is installed.
[0148]
The second joint A1-2 connecting the first support arm portion 61 and the second support arm portion 62 attaches the fixing portion 6 of one side joint body 1 to the tip of the lower arm main body 71 and the other side. A fixing shaft 6 of the one-side joint body 1 is attached to one one-side joint body 1 of a third joint A1-3, which will be described later, and a fastening shaft that extends horizontally to the meshing pieces 3, 3 of the one-side joint bodies 1, 1 4 is fitted. Further, the one end joint body 1 of the third joint A1-3 is also provided with the tip of the upper arm body 70 pivotally.
[0149]
The third joint A1-3 connecting the first support arm portion 61 and the second support arm portion 62 has the fixing portion 6 of the second joint A1-2 attached to the fixing portion 6 of one side joint body 1. The fixing portion 6 of the other one-side joint body 1 is attached to a second support arm portion 62 which will be described later, and the fastening shaft 4 extending in the vertical direction is fitted to the meshing pieces 3 and 3 of the both-side joint bodies 1 and 1. is doing.
[0150]
The second support arm portion 62 is formed in a rod shape and has a base end to which the fixing portion 6 of the one-side joint body 1 of the third joint A1-3 is attached, and a device mounting table 63 to be described later is attached to the distal end portion. Yes.
[0151]
The device mounting table 63 is attached to a front end portion of the second support arm portion 62 by attaching a rectangular plate-like support body 74 in plan view via a buffer 73 such as a spring on a support substrate 72 having a rectangular shape in plan view. It pivots freely.
[0152]
According to the on-vehicle equipment placement device S having the above-described configuration, the first support arm 61, the second support arm 62, and the equipment mounted sequentially connected to the connector 66 by moving the connector 66 in the vertical direction. The mounting table 63 can be moved in the vertical direction, and the device mounting table 63 can also be moved in the horizontal direction by rotating the first support arm 61 in the horizontal direction by the first joint A1-1. The first support arm 61 can be turned up and down by the two joints A1-2 to move the equipment mounting table 63 in the vertical direction, and the second support arm 62 can be moved horizontally by the third joint A1-3. The device mounting table 63 can also be moved in the horizontal direction by rotating in the direction.
[0153]
As described above, in the in-vehicle device mounting apparatus S, the plurality of arms (the first support arm portion 61 and the second support arm portion 62) are connected to the variable joint angle joint (the first joint A1-1 and the second joint A1-). 2. A movable arm D is formed by connecting through a third joint A1-3), and the movable arm D is moved in the vertical direction and the horizontal direction so that the device H on the device mounting table 63 is desired in the vehicle. It is possible to move to the position. Therefore, the workability of the device H inside the car C can be improved.
[0154]
In particular, since the first support arm portion 61 and the second support arm portion 62 constituting the movable arm D can be moved individually, it is easy to avoid obstacles such as the seat C3 in the vehicle, and the supported device H The movable range can be expanded.
[0155]
In addition, although the case where joint A1, A2, A3, A4 was used for the vehicle equipment mounting apparatus S was demonstrated here, structures, such as a stepladder, a scaffolding base, a scaffold board, a handrail, and a receiving beam, are also added to this. Joints A1, A2, A3, A4 can be used for objects.
[0156]
【The invention's effect】
The invention is carried out in the above-described form and has the following effects.
[0157]
  BookIn the invention,The device can be stably placed in the vehicle, and the device can be arranged at a position where the user can easily work to improve the workability of the device in the vehicle. In addition, since a device dedicated to equipment placement is provided in the vehicle, the equipment can be placed without damaging existing members in the vehicle, such as seats and dashboards, and the equipment is supported even if the weight of the equipment to be supported is large. The apparatus can be formed to a strength that can support the device, and the device can be reliably supported.
[0158]
  In particular, a casing that can be fixed to each of the connecting end portions of a pair of members to be connected to each other and fixed to the connecting end portion, and housed in the casing to be fixed, forms an annular engagement portion. A pair of joint bodies composed of a pair of meshing pieces, and a fastening shaft that is fitted to the pair of joint bodies so as to be able to advance and retreat, so that the meshing pieces can be brought into meshing contact with each other. Can be fixed at a predetermined connecting angle by operating the tightening shaft, and the connected members can be fixed at a predetermined connection angle, while the engaging pieces are tightened by operating the tightening shaft. Since the connecting angle of the connected member can be changed by loosening the force, the connecting angle can be fixed by securely connecting both the connected members while having a simple and compact structure. Easy change of connecting angle Ukoto can. In addition, since the annular meshing portion having complicated processing is provided in the meshing piece separate from the casing, it becomes easy to process the annular meshing portion, and the joint body can be manufactured without cost. In addition, since the connecting angle of both the connected members is changed by rotating one or both of the engaging pieces around the axis and shifting the engaging positions of the annular engaging portions of the engaging pieces, the engaging positions of the annular engaging portions are The connecting angle of both connected members can be changed each time one is shifted, and the connecting angle can be finely adjusted..
[Brief description of the drawings]
1A and 1B are diagrams showing an embodiment of a joint according to the present invention, in which FIG. 1A is a partially sectional side view, and FIG.
2A and 2B are views showing a casing, in which FIG. 2A is a partially sectional side view, and FIG. 2B is a front view.
FIGS. 3A and 3B are diagrams showing a meshing piece, in which FIG. 3A is a side view, and FIG. 3B is a front view.
4A and 4B are views showing a casing as another embodiment, in which FIG. 4A is a partially sectional side view, and FIG. 4B is a front view.
FIGS. 5A and 5B are diagrams showing a meshing piece as another embodiment, in which FIG. 5A is a partially sectional side view, and FIG. 5B is a front view.
6A and 6B are views showing a casing as another embodiment, in which FIG. 6A is a partially sectional side view, and FIG. 6B is a front view.
7A and 7B are diagrams showing a joint as another embodiment, in which FIG. 7A is a partially sectional side view, and FIG. 7B is a front view.
FIGS. 8A and 8B are diagrams showing a one-side joint body as another embodiment, in which FIG. 8A is a partially sectional side view, and FIG. 8B is a front view.
9A and 9B are diagrams showing a joint as another embodiment, in which FIG. 9A is a partially sectional side view, and FIG. 9B is a front view.
10A and 10B are diagrams showing a joint as another embodiment, in which FIG. 10A is a partially sectional side view, and FIG. 10B is a front view.
FIG. 11 is an explanatory diagram showing a use state when the joint according to the present invention is used in an in-vehicle device holder.
FIG. 12 is a front view of an in-vehicle device holder using a joint according to the present invention.
FIG. 13 is a rear view of the same.
FIG. 14 is a right side view of the same.
FIG. 15 is a plan view of the same.
FIG. 16 is a side view of a conventional in-vehicle device holder.
FIG. 17 is a plan view of a conventional in-vehicle device holder.
[Explanation of symbols]
A1 joint
A1-1 First joint
A1-2 Second joint
A1-3 3rd joint
A2 joint
A3 joint
A4 joint
B Connected member
S In-vehicle equipment mounting device
1 One side joint body
1-2 One side joint body
2 Casing
2-2 Casing
2-3 Casing
3 meshing pieces
3-2 Engagement piece
4 Tightening shaft
5 Elastic body
8 Recess for engaging piece arrangement
8-2 Recess for engagement piece arrangement
14 Annular engagement
18 Rotating lever
19 Main body base
21a Male thread
31 One side joint body
32 casing
33 Biting piece
34 Tightening shaft
35 Elastic body
38 Recess for elastic body
44 Annular engagement
48 Rotating lever
54 Shaft fixing cam
60 support
61 First support arm
62 Second support arm
63 Equipment table
66 coupling
84 Tightening shaft
88 Rotating lever
95 Elastic body
98 Recess for elastic body placement

Claims (7)

The base end of the arm part is mounted on a support rod that can be supported in a vertically extending manner in the vehicle, and the base end of the arm part can be moved up and down via a joint variable angle joint, and the equipment mounting base is attached to the tip of the arm part. The above equipment can be moved to the desired position in the car,
Moreover, the joint angle variable joint is
A casing that can be fixed to the connecting end portion, and a casing that can be fixed to the connecting end portion, is fixed inside the casing, and has an annular engagement portion. A set of joint bodies composed of meshing pieces,
A fastening shaft that is fitted to the set of joint bodies so as to be able to advance and retreat, and that enables the meshing pieces to mesh and be in close contact with each other;
The meshing pieces are meshed at a desired position, the meshing pieces are fastened by operation of the fastening shaft, and the connected member can be fixed at a predetermined connection angle, while the meshing piece is operated by operating the fastening shaft. A vehicle-mounted device mounting apparatus characterized in that the connecting force of the connected members can be changed by loosening the tightening force between them . The arm portion includes a first support arm portion including a parallel link that is connected to the support rod so as to be movable up and down via the connection angle variable joint and is movable in the vertical direction, and the first support arm. The in- vehicle device mounting apparatus according to claim 1 , further comprising a second arm portion that is connected to a tip of a portion via the connection angle variable joint and is provided with a device mounting table . The in- vehicle device mounting apparatus according to claim 1 or 2, wherein the fastening shaft is a screw shaft provided with a rotation lever . The in- vehicle device mounting apparatus according to claim 1 or 2, wherein the tightening shaft is a pin body provided with a rotation lever, and the pin body is fitted to the engagement piece via a cam . A biasing body locking projection is provided on the peripheral surface of the clamping shaft, and the biasing force is applied between the biasing body locking projection and one of the connected members in a direction to separate them . The vehicle-mounted device mounting apparatus according to claim 3 or 4, wherein a body is disposed. The in- vehicle device according to claim 3 or 4 , wherein a biasing body biased in a direction to separate the engaging pieces formed in each connected member is disposed between the pair of connected members. Mounting device . 7. The engaging piece disposing recess having a polygonal shape in plan view is formed on the end face of the connected member, and the engaging piece is formed in a shape corresponding to the engaging piece disposing recess . The vehicle-mounted apparatus mounting apparatus of any one of Claims .

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