TWI547633B - :schliess-und daempfungsvorrichtung fuer bewegbare moebelteile : closing and buffering device for movable furniture parts - Google Patents

Description

Closing and buffering device for movable furniture parts

The invention relates to a closing and cushioning device for a movable furniture part, in particular a moving door moving on a piece of furniture, the device having: a power storage device fixed to a shell with a first end Body, and it is tightened during the opening process of a piece of furniture and its stored energy is utilized during the closing process of the movable piece of furniture to help pull into the final closed position; a cushioning device and a steering device, A gear, a rack engaged with the gear and a retaining member are disposed on the gear in a direction in which the retaining member is not movable, and a second end of the strength accumulator is fixed to the retaining member.

There are many variations of such closure and cushioning devices in the prior art. Such closure and cushioning devices are particularly useful in moving door furniture for automatically pulling a moving door from a predetermined position into a closed position.

Mainly when such a closing and cushioning device uses a tension spring as the energy storage device, since the spring characteristic of the tension spring is linear, a large movement is required when the movable furniture portion (for example, the moving door) is opened. Strength to pre-tension the spring to a predetermined length.

In order to keep the required force to be as small as possible when moving the door, or to reduce the slope of the spring characteristic line, use the traditional solution as long as possible. Tension springs that steer in a housing. If this is not the case, conventional methods also incorporate several series of tension and/or compression springs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a closure and cushioning device for a movable furniture portion wherein the force required to open the process can be smaller or the slope of the spring characteristic line can be reduced.

This object is achieved by a closing and cushioning device for a movable furniture portion having the features of claim 1 and a closing and cushioning device for a movable furniture portion having the features of claim 8 of the patent application.

The closure and cushioning device of the present invention has a force reservoir (particularly in the form of a tension spring) that is secured to a housing with a first end and that is taut when a movable furniture portion is opened and stored The force is utilized as a pull-in assist during the closing process to pull the movable furniture portion into the final closed position. Furthermore, the closing and damping device has a damping device, in particular in the form of a pneumatic or hydraulic buffer or the like. The power accumulator has a steering device having a gear, a rack engaged with the gear, and a retaining member disposed on the gear in a bending manner, the second end of the power accumulator being coupled to the steering device, the steering according to the present invention The device has a varying distance profile during an opening or closing process that is the distance from the point of rotation of the pivoting gear of the force reservoir. If a movable piece of furniture (especially a moving door) is opened relative to the furniture at this time, a coupler presses against a rack, the rack drives the gear, and the force storage is wound up around the curve, subject to The shape of the trend curve affects the effective strength of the pivot point at one end of the force reservoir. Thus, compared to conventional solutions, the force required to open the process is relatively small, and when the tension spring is used as the force reservoir, the spring characteristic line is relatively flat, especially even horizontally or slightly.

Advantageous embodiments of the invention are found in the dependent claims.

According to a preferred embodiment, the trend is designed in the form of a spiral detent for the force reservoir, wherein the pivot point of the force reservoir is at a maximum distance from the point of rotation of the gear when in the closed position.

According to a further advantageous embodiment, the end of the force reservoir which is fastened to the holder is embodied in the form of a rope or straight wire. The force reservoir can thus be supported relatively simply on the holder, since the length of the rope or linear wire member is ideally such that only the rope member or the linear wire member is in contact with the holder.

According to a further advantageous embodiment of the closing and damping device according to the invention, the gear is elliptical and the width of the toothed rack in one region perpendicular to the axis of rotation of the gear is wider in one region than in the other region. In this region, the rack engages the gear in a closed position of the closing and cushioning device, and in the other region, the rack engages the gear in an open position of the closing and cushioning device. Such a gear or rack is designed such that when the restoring moment of the force reservoir is greater than the gear open position in the closed position. Thus, such as the take-up technique itself, the large force of the taut strength reservoir is compensated. With this implementation variant, the combination of the take-up technique and the toothed structure rolling around a curve is quantified by leverage and has the greatest effect in minimizing all required forces during the open process. fruit.

According to another embodiment variant, the force accumulator is fixed on the housing with its first end and coupled to the steering device with its second end such that the force accumulator is in an opening or closing process. It is kept linear between its ends. Thus, during the opening process, the strength reservoir becomes smaller as the movable furniture portion continues to be opened, and the degree of tension is less, especially when the tension spring is used as the strength reservoir, the tension is much smaller than the movement of the rack. The distance to the recipient, or much less than the strength of the force storage when turning or winding. Further, in this embodiment of the present invention, the force required for the opening process is less than that of the conventional solution, and in particular, the spring characteristic line is relatively gentle.

The embodiments of the invention are illustrated in the following detailed description.

In the following description of the drawings, "upper", "lower", "left", "right", "front" and "rear" refer only to the illustrations selected in the drawings for the closing and buffering devices, power storage, steering devices, etc. Image and location. However, they do not limit the scope of the invention, in other words, the words may be improved due to different working positions or mirror symmetrical designs and the like.

In Fig. 3, reference numeral (1) generally shows an embodiment of a closure and cushioning device of the present invention for use in a movable furniture portion, particularly for furniture (12) as shown in Figs. Moving the door in the middle (15). Here, the moving and cushioning device (1) has a coupler (4) as shown in Figs. 1 and 2. When the closing and buffering device (1) is installed in a specific state (12), there is a setting. An actuator on the moving door (15) is embedded in the coupler and opened at the moving door (15) When the actuator moves the coupler (4) along a guiding slot (23) (33) in the housing (2) (3) of the closing and buffering device (1), and a power storage device (6) It should be fixed to the casing (2) (3) with a first end (61) and should be designed to be elongated in the form of a tension spring. This force reservoir (6) is tightened during the opening process of the movable furniture portion, such as the moving door (15) shown in Fig. 7, and its stored force is utilized during the closing process of the moving door in the future. The other end (62) of moving the moving door (15) into the final closed position is coupled to a steering device (5). The steering device is mainly composed of a gear (52), a rack (51) meshing with the gear, and a retaining member. (53) [It is formed on the gear (52) in a non-rotation mode].

Figure 4 shows the closing and cushioning device in the closed position, and Figure 5 shows the closing and cushioning device in the open position, which is the case after the actuator fixed by the mover (15) is disengaged from the coupler (4), Figure 4 In the closed position shown, the force reservoir (6) is substantially untensioned. To this end, the retaining member (53) of the steering device (5) is in a position in which the end (62) of the force reservoir (6) fixed to the retaining member (53) is also deflected. When the moving door (15) is pulled apart, the coupler (4) is pressed against the rack (51) via a coupler (8). Here, the front end of the rack (51) is provided with a toothed structure (511) which meshes with the teeth of the gear (52), by moving the rack (51) (moving to the right in Figs. 4 and 5), the gear (52) and the retaining member (53) (which is fixed to the gear (53) in a rotationally fixed manner) moves in a clockwise direction, so that the force reservoir (6) is turned and tightened so that the gear is opened during the opening process ( The distance of the rotation point (521) of 52) is improved, in particular smaller, than the pivoting of the force reservoir (6). As this distance becomes smaller, the force of the arm and the further tightening of the force reservoir (6) is also reduced.

Since the resistance is reduced when the moving door is opened, the process is open from The transition of the moving door is harmonious when a state in which the actuator (4) meshes with the actuator of the moving door transitions to the free state of movement. In the solution known from the prior art, when the actuator is disengaged from the coupler (4), the resistance drops dramatically.

According to the embodiment variant shown in Figures 1 to 4, the retaining member (53) is fixed to the gear (52), and the force accumulator leans against a spiral base (531) when it is taken up onto the retaining member (53). )on. Here, the orientation of the spiral is such that when the recliner (531) is in the closed position, the distance between the gear (52) or the retaining member (53) from the point of rotation (521) of the gear (53) is maximized, and is stored with force. When the (6) continues to be taken up onto the holder (53), the distance becomes small.

In addition, the closing and cushioning device (1) has a cushioning device (7) which is specially designed as a pneumatic or hydraulic cushioning device, wherein a push rod (71) protrudes sealingly into the cushioning device housing at one end, and The other end is fixed to the housing (2) or (3) of the closing and cushioning device (1). Here, the housing of the damping device (7) is coupled to the rack (51), and when the coupling (4) is moved, along a guiding slot (24) (34) in the closing and buffering device (1) The casing (2) (3) is guided in one piece. Here, the rack (51) preferably utilizes two embedded guide slots (24) in the guide slots (24) (34) of the housing (2) (3) of the closing and buffering device (1) ( The guide pin in 34) is guided, and the guide pin (513) is formed or fixed on the rack (51).

The two housing parts (2) (3) of the closing and cushioning device (1) are preferably screwed together. For this purpose, threaded holes are provided in the four corners of the housing (2) (3), which should be designed as a rectangle, into which the screws (11) can be screwed, so that the two housing halves (2) And (3) interconnected, using the other two openings (25) (35) in the housing (2) (3), the closing and cushioning device (1) can be screwed onto a piece of furniture.

Figures 6 and 7 show the state in which the closing and cushioning device (1) is fixed to a piece of furniture. There is shown a section of a moving door cabinet having a rail (13), a moving door (15) being movably hooked into the rail (13) via a rolling device (16), wherein the rolling device (16) When fixed in the closed position of the moving door (15), it can be fixed in the end of the rail (13) in a stop element (14).

In Figures 8-11, another embodiment of the closure and cushioning device (1) of the present invention is shown. Here, the retaining member (53) is not provided with a spiral recliner, but is designed in the form of a substantially circular disc, a retaining tab (532) extending radially from the disc, the strength reservoir (6) The second end is fixed to the retaining tab (532). The force accumulator (6) is fixed to the steering device (5) in such a manner as to be rotatable, and is rotated about a rotational axis oriented parallel to the rotational axis (521) of the gear (52).

As shown in Figures 10 and 11, when the closing and cushioning device is moved from the closed position to the open position, when the coupler (4) is moved by the coupling member (8) on the rack (51) engaged with the gear (52) The entire force reservoir pivots downwardly about the suspension point of the force reservoir (6) at the first end (61) of the force reservoir (6). Thus, the force reservoir (6) (which should be designed in the form of a tension spring) does not deflect the entire distance of movement of the rack (51) and moves a smaller distance because of the second end of the force reservoir (6) ( 62) [It is fixed at the end to the retaining member (53), in particular to the radially outwardly facing retaining tab (532)] for rotational movement rather than linear movement.

Another embodiment of the closure and cushioning device (1) of the present invention is shown in Figures 12 and 13, where the force reservoir (6) differs from the embodiment illustrated in Figures 1-4 and is not completely designed in the form of a tension spring. And the system acts on the holder (53) The joined area is in the form of a rope member or linear wire member (63) which is wound onto the holder (53) as the rack (51) is moved from the closed position to the open position (Fig. 13).

In the variant shown in Figures 19 and 20, the force reservoir (6) is designed in the form of a strip (64) in the region of the operative connection with the retaining member (53), which is implemented as described in Figures 12 and 13. In the example, the rack (51) is taken up on the holder (53) when it is moved from the closed position to the open position (Fig. 13). Here, the belt member (65) is specifically designed as a plastic film hinged member, but may also be a cloth belt composed of plastic, textile or thin metal. The strip member (64) should be designed as a separate member that one end hits the retaining member (53) of the gear (52) and the other end is on the force reservoir (6).

Figures 15-18 again show an additional advantageous design of the closure and cushioning device of the present invention. Here, unlike the previous embodiment, the gear (52) is non-circular and elliptical, and the rack (51) is also correspondingly designed (more correctly, it should be the area of the rack (51) provided with the toothed configuration. (511)], in other words, the rack (51) is in a certain area in the plane of the rotating shaft (521) of the gear (52) [in this area, it is closed in the closing and damping device (1) The position is meshed with the gear (52) more than at the other position (where the rack (51) is engaged with the gear (52) in an open position of the closing and cushioning device).

Figure 14 shows a power path trend (characteristic line A) of a conventional closing device (also referred to as an automatic pull-in means) according to the prior art and a power path trend (characteristic line B) of the closing and buffering device (1) of the present invention. Comparison. Obviously, as seen in the characteristic line B, as the deflection s increases, the force required for deflection decreases all the time, whereas in the conventional closing and damping device, as indicated by the characteristic line A, as the deflection s of the tension spring increases, The strength F is also greater.

(1)‧‧‧Close and buffer devices

(2) ‧‧‧shell

(3) ‧‧‧shell

(4) ‧‧‧Connector

(5)‧‧‧ steering device

(6) ‧‧‧Power storage

(7) ‧‧‧buffering device

(8)‧‧‧ coupling parts

(11)‧‧‧ screws

(12)‧‧‧ Furniture

(13) ‧ ‧ rail

(14) ‧‧‧stop components

(15)‧‧‧Mobile doors (rolling devices)

(16)‧‧‧ rolling device

(23)‧‧‧ Guide slots

(24)‧‧‧ Guide slots

(25) ‧ ‧ openings

(33)‧‧‧ Guide slots

(34)‧‧‧ Guide slots

(35) ‧ ‧ openings

(51)‧‧‧Racks

(511)‧‧‧dental structures

(513)‧‧‧ Guide pin

(52)‧‧‧ Gears

(521)‧‧‧Rotation point (rotary axis)

(53) ‧‧‧ Holders

(531) ‧ ‧ Dependent

(532)‧‧‧ Keeping the tongue

(61) ‧ ‧ [the first end of the strength storage (6)]

(62) ‧ ‧ [the second end of the force storage (6)]

(63)‧‧‧Line wire parts

(64)‧‧‧With pieces

(71)‧‧‧Put

A‧‧‧ characteristic line

B‧‧‧ Characteristic line

F‧‧‧Power

S‧‧‧ Path

1 and 2 are schematic perspective views of a first embodiment of the closure and cushioning device of the present invention; FIG. 3 is an exploded perspective view of the closing and cushioning device of FIG. 1; Figure 5 is a top view of the closure of the previous figures and the buffer device in the open position; Figure 6 is a top view of the closure and cushioning device fixed to a moving door; Figure 7 is a diagram Figure 6 is a perspective view of another embodiment of the closure and cushioning device of the present invention; Figure 10 is a perspective view of another embodiment of the closure and cushioning device of the present invention; FIG. 11 is a view showing the closing and buffering of the closing device in an open position; FIG. 12 is a top view of the closing and cushioning device in a closed position according to another embodiment of the present invention; 13 is a view of the closing and cushioning device of FIG. 12 in an open position; and FIG. 14 is a power flow graph for comparing the spring characteristic lines of the conventional closing and cushioning device with the closing and cushioning device of the present invention.

Figure 15 is a top plan view of another embodiment of the closure and cushioning device of the present invention in a closed position; Figure 16 is a top view of the embodiment of the closure and cushioning device of Figure 15 in an open position; Figures 17 and 18 are views of a modification of the closing and cushioning device of Figures 15 and 16 without showing the housing; Figure 19 A further elevational view of a further embodiment of the closure and cushioning device of the present invention in a closed position; and Figure 20 is a top view of the closure and cushioning device of Figure 19 in an open position.

(3) ‧‧‧shell

(4) ‧‧‧Connector

(7) ‧‧‧buffering device

(11)‧‧‧ screws

(34)‧‧‧ Guide slots

(35) ‧ ‧ openings

(51)‧‧‧Racks

(511)‧‧‧dental structures

(513)‧‧‧ Guide pin

(52)‧‧‧ Gears

(521)‧‧‧Rotation point (rotary axis)

(53) ‧‧‧ Holders

Claims (9)

A closing and cushioning device for a movable furniture part, in particular a moving door (15) moving on a piece of furniture (12), the device having: a force storage (6) with a first end (61) fixed to a casing (2) (3), and it is tightened during the opening of a furniture portion (15) and its stored energy is utilized during the closing process of the movable furniture portion (15) Helping to pull into the final closed position; a cushioning device (7) and a steering device (5) having a gear (52), a rack (51) meshing with the gear (52) and a retaining member (53) The member is disposed on the gear (52) in a direction in which the relative movement is not possible, and a second end of the strength accumulator (6) is fixed to the retaining member (53), characterized in that the steering device (5) is open Or the closing process has a varying distance trend curve which is the distance from the point of rotation (521) of the pivoting gear (52) of the force reservoir (6) and which is provided on the holder (53). For example, the closing and cushioning device of claim 1 of the patent scope, wherein: the trend curve is designed in the form of a spiral recliner (531) for the force accumulator (6), wherein the pivot point of the force accumulator (6) is When the position is closed, the distance from the rotation point (521) of the gear (52) is the largest. A closure and cushioning device according to the first or second aspect of the aforementioned patent application, wherein the force reservoir (6) is designed in the form of a tension spring. For example, the closing and buffering device of the third application of the patent scope, wherein: The end (62) of the force reservoir (6) fixed to the holder (53) is designed in the form of a rope member or a straight wire member (63). The closing and cushioning device of claim 3, wherein the end (62) of the force reservoir (6) fixed to the holder (53) is designed in the form of a belt member (64). The closing and cushioning device of claim 4, wherein the length of the belt member (64), the rope member or the wire member (63) is such that only the belt member, the rope member or the straight wire member and the retaining member (53) Contact. The closing and cushioning device of claim 1 or 2, wherein the gear (52) is elliptical and the rack (51) is in a plane perpendicular to the axis of rotation (521) of the gear (52). The width in one region is wider than the width in the other region, in which the rack engages a gear (52) in a closed position of the closure and cushioning device, in which the rack is An open position of the closure and cushioning device engages the gear (52). A closing and cushioning device for a movable furniture part, in particular a moving door (15) moving on a piece of furniture (12), the device having: a force storage (6) with a first end (61) fixed to a casing (2) (3), and it is tightened during the opening of a furniture portion (15) and its stored energy is utilized during the closing process of the movable furniture portion (15) Helping to pull into the final closed position; a cushioning device (7) and a steering device (5) having a gear (52) and a tooth meshing with the gear (52) a strip (51) and a retaining member (53), the retaining member is disposed on the gear (52) in a direction in which the relative movement is not possible, and a second end of the strength accumulator (6) is fixed to the retaining member (53). It is characterized in that the strength reservoir (6) is fixed to the housing with its first end (61) and coupled to the steering device (5) with its second end (62) such that the force reservoir (6) ) is held linearly between its ends (61) (62) during an opening or closing process. The closing and cushioning device of claim 5, wherein the force accumulator (6) is fixed to the steering device (5) for rotation about a rotating shaft parallel to the rotating shaft (521) of the gear (52).