Source: https://patents.google.com/patent/FI119074B/en
Timestamp: 2020-07-10 13:16:00
Document Index: 20516097

Matched Legal Cases: ['art 7', 'arts 9', 'arts 7', 'arts 9', 'art 7', 'arts 9']

FI119074B - Clamping mechanism for attaching the housing to the opening in the wall - Google Patents
Clamping mechanism for attaching the housing to the opening in the wall Download PDF
FI20030677A0 (en
2003-05-06 Priority to FI20030677 priority Critical
2003-05-06 Priority to FI20030677A priority patent/FI119074B/en
, 119074
Clamping mechanism for attaching the housing to the opening in the wall
The invention relates to fastening mechanisms, and in particular fastening mechanisms, which are used for fastening the housing to an opening in the wall.
The plug unit assembly comprises a housing and a plug unit adapted to be connected thereto. The plug unit assembly is usually mounted in an opening in the wall.
In many prior art solutions, the plug unit housing is secured to the opening in the wall, at least in part, from one side of the wall. Thus, installing the plug unit assembly into an opening in the wall requires work steps on both the side of the wall from which the plug unit can be connected to the housing and detached from the other side of the wall when using the assembly. The means for securing the housing to the wall typically comprise separate mounting brackets and loose screws.
The problem with the plug unit mounting mechanisms as described above is that, when used, installing the plug unit assembly requires working on both sides of the wall where the pis-20 unit assembly is to be installed. In addition, the installation of a plug-in unit assembly is slowed down and complicated by the need for various loose accessories for installation, •. . ·. Prior art fastening mechanisms are described, inter alia, in GB1123733C, GB1333536C and US3199938A.
BRIEF DESCRIPTION OF THE INVENTION It is an object of the invention to provide a housing fastening mechanism for solving the above problems. The object of the invention is achieved by a positioning mechanism Μην. · * Which is characterized by what is stated in the independent claim. **]. Preferred embodiments of the invention are claimed in the dependent claims.
"" The invention is based on providing a clamping element which can be displaced **: '* in the longitudinal direction of the housing and rotate about its axis of rotation between the base position and the mounting position, whereby the clamping element ·: ··: the lance for providing a retaining force, and with the clamping element in its mounting position 2 119074, it allows the housing to be pushed to its final mounting depth.
An advantage of the fastening mechanism according to the invention is that all the steps required for mounting the housing can be carried out on the same side of the wall into which the housing is being installed. Furthermore, the housing with the fastening mechanism according to the invention can be implemented in such a way that all the mounting accessories are integrated in the housing, whereby the mounting accessories cannot be removed and lost. Due to their aforementioned features, the fastening mechanism according to the invention can also accelerate the mounting of the housing to the wall.
Figure 1 shows a retention mechanism according to an embodiment of the invention; and
Figure 2 illustrates the installation of a housing with four fastening mechanisms according to Figure 1 in an opening in the wall.
The fastening mechanism of Figure 1 comprises a clamping element 8, a screw means 10, a spring means 12 connected to the clamping element 8 and a collar element 6.
The clamping element 8 is capable of rotating about its axis of rotation 11 at the base | . ·. position and mounting position. The spring means 12, which is a torsion spring of the mechanism · · .I ”in Fig. 1, tends to return the clamping element 8 to its basic position1, if it is deflected away from it in the direction of the mounting position.
In Fig. 1, the pressing element 8 is in its basic position. Further, the clamping element 8 of FIG. 1 is at its extreme position, where its distance from the collar element 6 is at a minimum.
9 · v .: In the fastening mechanism of Figure 1, the clamping element 8 and the spring means 12: *** are mounted coaxially with the screw means 10, i.e. the screw means 30 passes through said components. The clamping element 8 comprises, in addition to the body part 7 located on the screw means 10, a guide chamfer • · *: · 9 projecting from the body part.
"**: Figure 2 illustrates the insertion of a housing 2 provided with four fastening mechanisms according to Figure 1 into an opening in wall 4. A collar element 6 is attached to the front edge of the housing 2, which is adapted to engage 3 119074 wall 4 therein. In the example of Figure 2, the collar element 6 surrounds the entire front edge of the housing 2.
In the embodiment of Fig. 2, the fastening mechanisms are mounted on the sides of the housing 2 with two mechanisms on each side. The clamping elements 8 in Fig. 2 are in their basic position, where the guide chamfer parts 9 projecting from their body parts 7 point outwardly from the housing 2 so that the width of the housing 2 measured from the tips of the guide chamfering parts 9 exceeds the opening of the wall 4.
The diameter of the body portion 7 of the compression element 8 of Figure 1 with respect to the pivot axle 11 is substantially constant. The shape of the steering chamfer 9 projecting from the body part 7 resembles a bevelled aircraft wing at its leading edge. The guide-seat portion 9 extends from the frame portion 7 at a relatively slight angle. The edge of the guide chamfer 9 which engages with the edge of the opening in the wall 4 when the housing 2 is inserted into said opening is bevelled. 1, the edge of the guide chamfer 9 of Fig. 1 is chamfered from above, thereby providing a downward rotation of the guide chamfer 9 when the guide chamfer 9 meets the wall 4.
The support means 16 of the tip portion of the screw means 10 support said tip in directions perpendicular to the shaft 11. Said support means 16 of the pin 20 of the screw means 10 may also, if desired, limit the movement of the screw means 10 in the longitudinal direction of the housing 2.
In the fastening mechanism of Fig. 1, the support means 16 of the tip portion of the screw means 10 comprise a hole, perpendicular to the surface 11 extending through the shaft 11, through which the screw means 10 passes. The diameter of said hole is ···. * · *. 25 substantially the same as the diameter of the screw means 10 at the hole. The screw means 10 is preferably threadless at the support means 16 of the tip portion of the screw means.
• ·] · «. In the structure of Figure 1, the movement of the screw means 10 in the longitudinal direction of the housing 2 can be limited, for example, by providing a screw means. . 10 a flange protruding therefrom with an outer diameter greater than the screw · · 'attach * 30 10 the diameter of the 16 holes of the support means of the tip member.
As stated above, the total width of the housing 2 with the clamping elements 8 in its basic position is greater than that of the wall 4 ····. **. width of the opening. When the housing 2 is pushed deep enough into the wall 4 · *. the guide chamfer parts 9 of the pressing elements 8 are wall-mounted 35 to the edge of the opening 4 in the mass. As the housing 2 is continued to be pushed further, the torque caused by the wall 4 to each of the clamping elements 8 rotates the clamping elements 8 to their mounting position, whereby the width of the housing 2 measured from the tips of the guide bevels θ is equal to the width of the opening. When the clamping elements 8 are in their mounting position, the housing 2 can be pushed into its final mounting depth, i.e., the position where the collar element 6 5 is engaged with the wall 4.
The screw means 10 is adapted to move the clamping element 8 in the longitudinal direction of the housing 2, i.e. in the direction in which the housing 2 is inserted into the opening in the wall 4. The displaceability of the clamping element 8 in the longitudinal direction of the housing 2 can result in both clamping of the clamping element 8 against the wall 4 on the side opposite to the mounting direction of the housing and to adjust the fastening mechanism to different wall thicknesses. The displacement of the clamping element 8 in the longitudinal direction of the housing 2 is achieved by turning the screw means 10 from the base. The head of the screw means 10 may be of the type to be screwed, for example, with a screwdriver and / or a socket wrench, or may be adapted to be manually screwed.
In the structure of Figure 1, a thread is provided on the inner surface of the body 7 of the press element 8, which is able to cooperate with the thread of the screw means 10 to move the press element 8 in the longitudinal direction of the housing 2. In the embodiment of Fig. 1, the spring means 12 is preferably mounted on the outer surface of the body 7 of the clamping element 8, so that the spring means 12 does not have to slide along the threaded portion of the screw means 10.
As the clamping element 8 of Fig. 1 is rotated in the longitudinal direction of the housing 2 by rotating the screw means 10, the first 25 end of the spring means 12 remains attached to the body portion 7 of the clamping element 8, and its other end slides along the housing 2 the counter surface.
• ». * ··. The screw means 10 of the fastening mechanism according to the invention is preferably arranged so that it does not move along the axis of the screw means 10. . rounding. In addition, the screw means 10 are preferably arranged such that they cannot be removed from the housing 2. Such a structure can prevent the screw means from being removed and lost. Preferably, the fastening mechanism according to the invention does not include any part that could be removed by the user from the mechanism.
In the fastening mechanism according to the invention, the pivot axis 11 of the pressing element 8 is preferably substantially parallel to the longitudinal direction of the housing 2, as in Figures 1 and 2.
• ♦ 5 119074
The clamping surface 8 of the clamping element 8 is preferably displaced at a distance corresponding to the thickness of the wall 4 from the collar element 6 before the housing 2 is inserted into the opening in the wall. By a distance corresponding to the thickness of the wall, here is meant a distance at least equal to the thickness of the wall 5, and preferably somewhat greater to facilitate installation. By the pressing surface of the pressing element 8 is meant here the surface of the pressing element 8 which is adapted to engage with the wall 4 in order to provide a force retaining the housing 2. In the fastening mechanism of Figure 1, the clamping surface 8 of the clamping element 8 is the "back surface" of the guide chamfer 9. The clamping surface 10 of the clamping element 8 is shaped and positioned so that it does not extend outwardly from the housing 2.
If desired, the fastening mechanism according to the invention can be adapted such that the distance of the clamping element 8 from the collar element 6 can be increased by rotating the screw means 10 even when the housing 2 has been pushed to its final mounting depth but the clamping element 8 is not deep enough For example, when using the fastening mechanism of Figure 1, a clamping element 8 coupled to the thickness surface of the opening of the wall 4 can be slidably rotated in the longitudinal direction of the housing 2 by screwing the screw means 10.
When the housing 2, whose clamping elements 8 are spaced from the collar element 6 to correspond to the thickness of the wall 4, is inserted sufficiently deep into the opening in the wall 4, the clamping elements 8 can rotate to their home position on the opposite side of the wall . *. the width of the housing 2 measured at the tips of the pieces 9 exceeds the width of the opening 25 in the wall 4, thus preventing the housing 2 from moving back in the direction from which it was pushed into the opening.
When the housing 2 has been pushed to its final mounting depth, the pressing surfaces of the pressing elements 8 are spaced from the side of the wall 4 to which they are adapted to engage the housing 2 to provide a holding force 'V 30. This distance, which would ideally be substantially zero, depends on how precisely the distance between the clamping elements 8 and the collar element 6 is adjusted to correspond to the wall 4 before the housing 2 is mounted. thickness. By rotating the screw member 10, said distance is reduced, until the clamp element 8 engages the wall 4. Thereafter, the screw member *: '*: 35 continues to rotate until the force exerted by the clamp member 8 on the wall 4 reaches the desired value. the clamping force of each clamping element 6 119074 8 is adjusted to the desired value, holds the clamping force exerted by the clamping elements 8 and the collar element 6 on the wall 4 in place.
The removal of the housing 2 from the wall 4 is started by removing the clamping force exerted on the wall 4 by the clamping elements 5 and the collar element 6. The clamping force is removed by turning the screw means 10 sufficiently. In addition, in order for the housing 2 to be detached from the opening in the wall 4, the clamping elements 8 must also be turned to their mounting position.
The housing 2 of FIG. to which the guide bevel portion 9 of the compression element 8 engages when the compression element 8 is moved sufficiently toward the pivoting means 14.
Said opening in the housing 2, the edge of which forms the pivoting means 14, is long enough in the longitudinal direction of the housing 2 to allow the distance of the pressing element 8 and the collar element 6 to be adjusted to different wall thicknesses. The said aperture in the height direction is large enough to allow the actuator 20 to rotate between its basic position and its mounting position. On the other hand, said aperture is shaped in the height such that it does not allow the clamping element 8 to rotate with respect to its axis 11 to a "lower" position, i.e. a position where its pivoting angle to the mounting position is greater than the corresponding pivot angle. This ensures: * ··. 25, that the clamping element 8 cannot reach the wall 4 when tightening the housing 2 to pivot to a position where it does not protrude sufficiently from the housing 2 to provide a clamping force.
Thus, the structure shown in Figure 2 allows each of the compression members. . turning the blade 8 to its mounting position by rotating the screw means 10 by ♦ · · * £ '30. When each of the clamping elements 8 of the housing 2 is turned to the mounting position, the housing 2 can be pulled out of the opening in the wall 4. The construction illustrated in Fig. 2 allows the clamping elements 8 to be pivoted into a mounting position. and with the housing 2 mounted in the opening in the wall 4, * with housing 2 detached from wall 4.
| The use of the fastening mechanism according to the invention has been described above *: in a situation in which the clamping element 8 engages with the opposite side of the wall 4 with respect to the position 119074 7 of the housing 2. However, it goes without saying that the surface on which the clamping elements 8 exert a force holding the housing 2 need not necessarily be on the other side of the wall. For example, in the case of a thick wall 4, recesses may be provided on the surface 5 of the wall in the direction of thickness, to which surfaces the clamping elements 8 may engage to provide a force retaining the housing 2.
The fastening mechanism according to the invention is suitable not only for fastening the plug unit kit housing, but also for similar housing to the opening in the wall. The fastening mechanism according to the invention may be adapted such that the plug-in unit or the like component may be attached to the housing when the housing is mounted on a wall. Further, the fastening mechanism according to the invention can also be used in devices that do not have a detachable component such as a sting unit.
It will be obvious to a person skilled in the art that the basic idea of the invention can be implemented in many different ways. The invention and its embodiments are thus not limited to the examples described above, but may vary within the scope of the claims.
·· • · • I »• · • *
«· •» »» · · * * f f f f 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 · • * «* · a • ·» »· * ·» »· • · *» * ·· t • ·
A fastening mechanism for securing the housing (2) to an opening in the wall (4), the mechanism comprising a collar-5 (6) mounted on the housing (2) adapted to engage the first side of the wall (4) near said opening edge; which is arranged to engage one side of the wall (4) in the vicinity of said opening edge, the collar element (6) and the clamping element (8) being adapted to cooperate to apply a clamping force to the wall (4) to provide a clamping force; comprising a threaded portion and a base portion adapted to rotate the screw means, the screw means (10) being adapted to move the clamping element (8) in the longitudinal direction of the housing (2) while rotating the screwing means (10); pressed against the wall (4), known therefrom , that the clamping element (8) is rotatable about its pivot axis (11) between the base position and the mounting position, which pivot axis (11) is substantially parallel to the longitudinal direction of said housing (2), whereby the clamping element (8) ) to the other 20 sides of the housing (2) for clamping force, and with the clamping element (8) in its mounting position, it allows the housing (2) to be pushed to its final 99 * ·· depth and the clamping element (8) comprises (7) and a guide chamfer (9) projecting from this body member, which is shaped: by being inserted into the opening in the wall (4) when the housing (2) is inserted; The 25 sizes operate the guide chamfer (9) together with the wall (4) to rotate the clamping element (8) from the basic position to the mounting position.
! ·· '. A fastening mechanism according to claim 1, characterized in that it comprises a spring means (12) operatively coupled to the clamping element (8), which is arranged so that in the situation where the clamping element (8) is ♦ · 30. deviated from its basic position, the spring means (12) exerts a force on the cross member (8) which tends to turn the compression element (8) to its brown position.
. · **. Fastening mechanism according to Claim 1 or 2, characterized in that a housing (2) is provided for each pressing element | 35 (8) pivoting means (14) adapted to pivot the respective compression element (*) into the mounting position when the compression element (8) is displaced a predetermined distance away from the collar element (6) of the housing (2), wherein 14) enables the clamping element (8) to be rotated to its mounting position by turning the screw means (10).
Fastening mechanism according to one of the preceding claims, characterized in that the clamping element (8) is mounted coaxially with the screwing means (10), the screwing means (10) being partly within the clamping element (8), and in that the inner surface of the clamping element (8) a thread is provided which is capable of cooperating with the thread of the screw means (10) to move the clamping element (8) in the longitudinal direction of the housing (2).
Clamping mechanism according to Claim 4, characterized in that the spring means (12) comprises a torsion spring mounted coaxially with the screw means (10) and the clamping element (8), the first end of which is fixed to the clamping element (8), and the other end being adapted to slide along a mating surface provided on the housing (2) when moving the pressing element (8) in the longitudinal direction of the housing (2).
Fastening mechanism according to one of the preceding claims, characterized in that the screw means (10) does not move in the longitudinal direction of the housing (2) when the screw means (10) is rotated.
Fastening mechanism according to one of the preceding claims, characterized in that the rotation of the clamping element (8) with the screw means 20 (10) is substantially prevented, whereby the clamping element (8) remains in its basic position when it is displaced by the screwing means. (10) by turning. »··
Anchoring mechanism according to any one of the preceding claims, characterized in that the collar element (6) substantially surrounds the entire front edge of the housing • 9 (t 25 (2), with the housing (2) secured to an opening in the wall (4). is surrounded by a contact surface through which the collar element (6) engages with the wall (4), substantially all of said opening.
8 119074
Fastening mechanism according to one of the preceding claims, characterized in that the clamping element (8) and the screw means (10) are integrated: 30: 30 in the housing (2), whereby they cannot be removed and lost.
Fastening mechanism according to one of the preceding claims, characterized in that said first side of the wall (4) is the side from which the housing (2) is inserted into the opening in the wall (4).
Fastening mechanism according to any one of the preceding claims, characterized in that it is arranged to fasten the housing * ···· (2) of the plug-in assembly to an opening in the wall (4). 10 119074
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