Push-push assembly

Abstract

The present subject matter relates to a push-push assembly component. The push-push assembly (100) can include a cap (400), a housing (200), a resilient member (300), a pusher (600), and a control ring (500). The push-push assembly (100) according to the present subject matter is simple in design and is reusable and serviceable. The simple design allows a user to put in minimum labor during assembly and disassembly of the push-push assembly (100).

Description

Background Technology

[0001] Push-push assemblies are used in applications where a pushing action locks two components and a subsequent pushing action unlocks them. For example, in door assemblies, push-push mechanisms are used to lock and release / open the door. Other examples of their application include in automotive glove boxes or overhead compartments, where a pushing action on a cover (whether glove box or compartment cover) opens the cover by releasing a latch, and a subsequent pushing action locks the cover. In other words, push-push assemblies are used in applications that implement push-lock and push-unlock actions. Attached Figure Description

[0002] The features, aspects, and advantages of this subject matter will be better understood by referring to the following description and accompanying drawings. The same reference numerals are used in different figures to denote similar or identical features and parts. This description refers to the accompanying drawings, in which:

[0003] Figure 1 The push-push component is shown in a breakdown view based on an example from this topic;

[0004] Figure 2A The shell of the push-push component is shown in an exploded view according to an example in this topic;

[0005] Figure 2B The push-push assembly's actuator and control ring are shown in an exploded view, based on an example from this topic.

[0006] Figure 2C The pusher and control ring in their assembled position are shown as examples based on this topic;

[0007] Figure 2D The example shown is an actuator and control ring assembled with a housing according to this topic;

[0008] Figure 2E The cap of the push-push assembly before it is locked to the housing is shown as an example according to this topic;

[0009] Figure 2F The example shown is a cap assembled with a shell, based on this topic;

[0010] Figure 2G The rubber parts of the push-push assembly before assembly are shown as an example based on this topic;

[0011] Figure 3 The push-push assembly, as shown in the example of this topic, is presented in a transparent view, showing the various parts in an assembled state;

[0012] Figure 4A A perspective view of the shell, based on an example from this topic, is shown;

[0013] Figure 4B An enlarged view of the housing, as shown in the example of this topic, is displayed, illustrating the housing's access channel area;

[0014] Figure 4C A top view of the shell, as shown in the example for this topic, is presented.

[0015] Figure 5A Another perspective view of the shell, based on an example of this topic, is shown;

[0016] Figure 5B Another enlarged view of the housing, based on an example from this topic, is shown, illustrating the housing's first guide path;

[0017] Figure 6A This is another enlarged view of the housing as an example according to this topic, showing the housing's stops;

[0018] Figure 6B This shows an enlarged view of the stop file based on an example from this topic;

[0019] Figure 6C This shows another enlarged view of the stop file based on an example from this topic;

[0020] Figure 7 A yieldable snap-fit ​​is shown on the housing with a first guide path, as illustrated in this example.

[0021] Figure 8A and Figure 8B This demonstrates a second guide path formed on the shell based on an example from this topic;

[0022] Figure 9A and Figure 9C A 3D model of a hat based on an example from this topic is shown. Figure 9B A top view of the hat is shown;

[0023] Figure 10 A transparent view of the housing and cap in the disassembled position, based on an example from this topic;

[0024] Figure 11A and Figure 11B A top view of the cap and shell in a disassembled state, based on an example from this topic;

[0025] Figure 12A and Figure 12B A top view of a cap and shell in a semi-assembled state, based on an example from this topic;

[0026] Figure 13A and Figure 13BA top view of the cap and shell in an assembled state, based on an example from this topic;

[0027] Figure 14A and Figure 14B A top view of the cap and shell in an assembled state, based on an example from this topic;

[0028] Figure 15A and Figure 15B A top view of the cap and housing is shown, based on an example of this topic, when the cap is removed from the housing;

[0029] In all the accompanying drawings, the same reference numerals denote similar elements, but may not denote the same elements. These drawings are not necessarily drawn to scale, and the size of some parts may be enlarged to illustrate the examples more clearly. Furthermore, the drawings provide examples and / or implementations consistent with the specification; however, the specification is not limited to the examples and / or implementations provided in the drawings. Detailed Implementation

[0030] Push-push components are typically used in locking systems and in applications where push-lock and push-unlock may be required. In such applications, a push-push action can be applied to a first component, allowing the first component to be latched to and / or unlocked / released from a second component.

[0031] A typical push-push assembly comprises a housing that houses a compression spring, movable parts that resist the force of the compression spring, and controls that adjust the movement of the parts to perform locking and unlocking by pushing alone. The parts of a push-push assembly are usually permanently fastened and cannot be disassembled. In other words, push-push assemblies are typically assembled in a way that makes disassembly unlikely. In the example, the parts are assembled within a housing, which is then sealed by welding, making the assembly permanently closed. If disassembly is required, the parts must be cut from their fixed positions, meaning the parts must be broken or fractured to remove the push-push assembly. Once broken, the parts of the push-push assembly may not be suitable for reuse and may have to be discarded. One consequence of this is that, for example, when a part of the assembly is damaged or malfunctions, the entire assembly must be replaced with a new push-push assembly. Therefore, using such conventional push-push assemblies can be costly because if any part of the push-push assembly is found to be faulty, it cannot be repaired. In other words, cost is a consideration for conventional push-push assemblies because the parts are not reusable and must be replaced each time. Furthermore, the assembly of a conventional push-push assembly can be complex, given the multiple complex processes required to assemble the components together.

[0032] Furthermore, a typical push-push assembly incorporates a resilient member (such as a compression spring) within a housing chamber, which operatively engages with a component of the assembly. This resilient member can apply a force in an outward axial direction relative to the housing, causing it to act on the contacting component, pushing the resilient member away from the component and ejecting it from the housing. However, the resilient member is prone to failure or disassembly due to the reaction force applied to it. This is further complicated by the size limitations imposed on the resilient member by the push-push mechanism itself. Push-push assemblies are generally manufactured in small sizes to allow their use in space-constrained locations, such as door handle assemblies, fuel filling systems, or glove box compartment covers. Limitations on the size of the push-push assembly itself can adversely affect the design and operation of conventional push-push assemblies, and size may be an unchangeable aspect of the push-push assembly.

[0033] This document describes an example of a push-push assembly. According to one aspect, the push-push assembly is reusable and easy to assemble or disassemble, while ensuring that the assembly or any of its components are not prone to failure during operation. In the example described, the push-push assembly may have a cap, a housing, a resilient member, a pusher, and a control ring.

[0034] The cap can be formed as a cylinder having an open first end and an equally open second end. The cap can be provided to hold the various parts of the push-push assembly together. According to one aspect, the cap can have a locking feature on its inner wall, and, as described below, can interact with a feature on the housing to lock detachably from the housing. Furthermore, the cap can be formed to be flexible in the radial direction near the first end. This flexible nature of the cap allows the cap to be removed from the housing when needed by disengaging the locking feature from the housing.

[0035] The housing can be formed as a closed-end cylinder with a cavity into which an elastic member (e.g., a compression spring) can be loaded. The housing can have a shape complementary to the cap, thereby enabling engagement with the cap via relative movement between the housing and the cap. According to this subject matter, the housing is provided with features that allow the push-push assembly to be reused. The housing can have guide paths formed on its outer wall for guided movement of the cap's locking feature. Further, the guide paths can have a retraction feature that can interact with the cap's locking feature. The retraction feature allows for disengagement of the cap's locking feature from the housing. Furthermore, the retraction feature limits accidental disengagement of the cap.

[0036] Furthermore, the actuator of the push-push assembly can be disposed within the housing and movable relative to the housing. According to one aspect of this subject matter, the actuator is operatively coupled to an elastic member, which facilitates movement of the actuator away from the closed end of the housing in an outward direction. Additionally, the actuator can have a first traveling member formed thereon, which regulates the travel of the actuator within the housing. Furthermore, the push-push assembly can have a control ring disposed within a cap of the push-push assembly. The control ring can have a second traveling member that cooperates with the first traveling member of the actuator and accordingly regulates the movement of the actuator within the housing.

[0037] In addition to the aforementioned components of the push-push assembly, a rubber part can be mounted to the second end of the cap, for example, to prevent particulate matter (such as dust) from entering the push-push assembly, which could interrupt operation or at least adversely affect its operation. The rubber part may be threaded to fasten to corresponding threads on the cap. Furthermore, the rubber part can be flexible to avoid interfering with the operability of the push-push assembly. In the example, the rubber part can be formed as a bellows, such that its length is variable in the axial direction.

[0038] Furthermore, the guide path of the housing may include a first guide path and a second guide path, which are axially spaced apart from each other, formed on the outer wall, and extend along the outer periphery of the housing to allow guided movement of the locking features on the cap when the cap moves relative to the housing during engagement. Accordingly, the cap may also include multiple locking features to interact with the backstop features of the housing. The locking features of the cap may include fixed locking features and flexible locking features. In the example, the fixed locking features of the cap may interact with the first guide path and the second guide path.

[0039] In the first guide path, the entry channel region can be formed as a gap that allows the locking feature to initially engage with the housing, enabling the cap to enter axially toward the closed end of the housing to engage with the first guide path. After entry and engagement, the cap can be twisted such that it follows the first guide path as it rotates relative to the housing. In other words, the first guide path can be discontinuous to allow relative axial movement of the cap's locking feature relative to the first guide path, and the cap can then be rotated for relative rotational movement to position the locking feature against and onto the first guide path.

[0040] Furthermore, the first guide path may be provided with a backstop feature to interact with the cap's locking feature. The backstop feature of the first guide path includes two stops formed at both ends of the first guide path. In the example, the access channel region is formed between the two stops at both ends of the first guide path. The stops may be formed to have a radial thickness almost the same as the guide path, but may extend axially toward an end opposite to the open end of the housing from which the cap will be installed. Therefore, the initial engagement of the cap with the first guide path requires the cap's locking feature to slide on one of the stops, which can act as a blocking structure to prevent movement of the locking feature in the opposite direction (i.e., the removal direction).

[0041] Furthermore, the first guide path may be provided with additional anti-return features. For example, the first guide path may include a yieldable snap-fit ​​that is yieldable when a first threshold force is applied, as the locking feature slides on it during assembly due to the rotation of the cap relative to the housing. Simultaneously, when the cap rotates in the opposite direction to the direction of disassembly from the housing, the yieldable snap-fit ​​may only flex when a second threshold force much larger than the first threshold force is applied, thereby facilitating a forced lock between the cap and the housing. In the example described, the yieldable snap-fit ​​may be designed with a wedge shape such that the approach angle of the wedge during assembly is smaller than the approach angle during disassembly, thus requiring a greater force for disassembly.

[0042] In the example above of the first guide path, the cap's locking feature can be coupled with the backstop feature, that is, coupled with the yieldable snap fastener and the stop.

[0043] Furthermore, as described above, a second guide path is formed on the outer peripheral wall of the housing to control the relative rotational movement of, for example, the flexible locking feature of the cap. For example, the flexible locking feature may abut and be positioned against the second guide path of the housing. The second guide path may further have a support surface as a backstop feature, from which a blocking wall extends. The blocking wall may restrict the rotation of the corresponding locking feature on the cap in the disassembly direction. Furthermore, as described above, due to the flexible nature of the cap, the flexible locking feature is made flexible and can be configured to facilitate easy unlocking of the locking feature from the backstop feature of the second guide path, thereby enabling the cap to be disassembled without damaging the cap or the housing. Therefore, it is possible that the push-push assembly can be reused through the above-described exemplary embodiments.

[0044] In addition to making the component reusable, the first guide path of the housing also resists the axial force applied by the loaded elastic member to hold the cap connected to the housing, thereby holding the pusher within the housing and allowing its adjustable movement. Therefore, the push-push assembly is designed to be maintainable, allowing for the replacement or repair of various components, and due to the aforementioned features, the push-push assembly is thus reusable. Furthermore, due to the design of the push-push assembly and its components described herein, the assembly and disassembly process is simplified, and this design also ensures that the components of the assembly are firmly held together against internal forces.

[0045] In the examples provided above, the features of the housing and the cap exist separately in their respective parts (i.e., the housing and the cap). For example, the housing includes a set of single guide paths, such as a single first guide path and a single second guide path, and the cap includes a set of single locking features, such as a single fixed locking feature and a single flexible locking feature. However, in other examples of this subject, each feature of the housing and the cap may be provided in a set of two. In the example described, the housing may include a set of two guide paths and the cap may include a set of two locking features.

[0046] For example, the housing may include a set of two first guide paths formed on the outer peripheral wall of the housing. Further, these two first guide paths may be diametrically opposed to each other and separated at their ends by a set of two access channel regions, each end having one access channel region. The two access channel regions may be positioned almost diametrically opposed to each other. In other words, the two first guide paths may be diametrically opposed to each other and each may occupy less than half of the outer perimeter of the housing. In the example described, each of these two first guide paths may further include a backstop feature, and thus, two backstop features may be provided. For example, each first guide path may include a yieldable snap-fit ​​and stops at both ends, such that the total backstop features in the push-push assembly are paired, with each first guide path having one backstop feature. In this example, stops may be formed at both ends of each first guide path to receive a locking feature of the cap.

[0047] In the example where the feature is a set of two, the cap may include a set of two locking features. For example, a fixed locking feature may correspond to a first guide path, and accordingly, for each of the two first guide paths, the cap may include one fixed locking feature. Thus, in the example, the cap has a set of two fixed locking features. In the example, the fixed locking features may be diametrically opposed to each other so that they simultaneously engage and interact with the corresponding first guide path (and its aforementioned backlash feature) when the cap is attached to the housing.

[0048] Furthermore, in the same example as above or another example, the housing may further include a set of two second guide paths that are substantially diametrically opposed to each other. Each of the two second guide paths has a backstop feature, i.e., a blocking wall extending from the support surface. Further, to correspond to the two second guide paths, the cap may include two flexible locking features, one of which interacts with one of the second guide paths in the set of guide paths, the flexible locking features being substantially diametrically opposed to each other.

[0049] Therefore, by means of a first guide path configuration with a stop and a yieldable snap fastener, the housing facilitates easy assembly of the cap with minimal rotation. Furthermore, providing the yieldable snap fastener and stop on the housing ensures that the cap is not detachable without the intention to disassemble it (e.g., due to vibration). These features of the housing can be formed on the housing such that assembling the cap onto and removing the cap from the housing requires minimal effort.

[0050] The push-push assembly of this topic can be used, for example, in automotive door handle systems and / or fuel filling systems. In the example of an automotive door handle system, it can be used in a door handle to allow a push action to lock the door and / or a push action to unlock / release the door. In the example of a fuel filling system, a push-push action can be applied to lock and unlock / release a fuel filler cap located on the vehicle body. Other application examples of the push-push assembly can be in the glove box or overhead compartment of a car. Therefore, simply put, the push-push assembly can be used in any application requiring push-lock and push-unlock actions.

[0051] In the following description, reference is made to the accompanying drawings, which form a part of this specification, and specific embodiments in which the invention may be practiced are illustrated by way of illustration. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it should be understood that these embodiments may be combined, other embodiments may be used, and structural and logical changes may be made without departing from the scope of the invention. Therefore, the following detailed description should not be construed as limiting, and the scope of the invention is defined by the appended claims and their equivalents.

[0052] Figure 1 An exploded view shows a push-push assembly 100 according to an example of this subject. The push-push assembly 100 includes a housing 200 that houses a resilient member 300, a control ring 500, and a pusher 600. The push-push assembly 100 further includes a cap 400 that can be used to movably close the housing 200 and hold the resilient member 300, control ring 500, and pusher 600 for operation. Additionally, the push-push assembly 100 includes a rubber element 700 that can be used to cover the cap 400.

[0053] The housing 200 is formed as a closed-end cylinder, its shape complementary to that of the cap 400, to engage with the cap 400 through relative movement between them. As described above, the housing 200 according to this subject matter has a chamber in which other components may be disposed. Guide paths 204, 216 are formed on the outer wall to guide the movement of the locking feature of the cap 400, wherein the locking feature slides along the guide paths 204, 216 as the cap 400 moves relative to the housing 200 during engagement. Further, the guide paths 204, 216 have a backstop feature for interacting with the locking feature of the cap 400 to allow the locking feature of the cap 400 to detachably engage with the housing 200 and to limit accidental disengagement of the cap 400.

[0054] The elastic member 300 can be, for example, a compression spring, which can apply an axial force when compressed in the axial direction. According to this subject matter, the elastic member 300 is disposed within the housing 200. When the elastic member 300 is thus loaded into the cavity of the housing 200, the elastic member 300 neither compresses nor extends, and therefore does not apply a force. However, when the actuator 600 is disposed within the cavity containing the elastic member 300, the elastic member 300 may be forced to compress, thus applying a force in the axial direction. The actuator 600 is disposed within the housing 200 so as to be movable relative to the housing 200.

[0055] Furthermore, the pusher 600 is operatively coupled to the elastic member 300 to control the movement of the pusher 600 within the housing 200. The pusher 600 has a first traveling member 602 to regulate the travel of the pusher 600. The elastic member 300 is operatively engaged with the pusher 600, thereby applying a force in an outward axial direction relative to the housing 200. In other words, the force acting on the pusher 600 by the elastic member 300 is used to push the pusher 600 away from the elastic member 300 and out of the housing 200. However, when the cap 400 is assembled onto the push-push assembly 100, a reaction force can be obtained by firmly holding the pusher 600 and the control ring 500 so that the elastic member 300 is not compressed and pushed out of the assembly.

[0056] According to one aspect, a control ring 500 is disposed within a cap 400 and has a second travel member 502 to regulate the travel of the actuator within the housing. A first travel member 602 of the actuator 600, together with the second travel member 502 disposed on the control ring 500, works to regulate the travel of the actuator 600 within the housing 200. The control ring 500 can be fitted with the actuator 600 such that the actuator 600 is restricted from further entering the cavity of the housing 200. In an example, one of the travel members may be a drive lug, and the other may be a drive channel, such that they can work together to allow relative movement between the actuator 600 and the control ring 500.

[0057] As described above, the cap 400 can be configured to attach to the housing 200 and hold the components of the push-push assembly 100 in an assembly that prevents accidental disassembly. The cap 400 is formed as a cylinder having a first end 408, a second end 410, and a locking feature on its inner wall, wherein the cap is flexible in the radial direction near the first end. The first end 408 and the second end 410 are open, allowing the pusher to extend through and beyond the length of the cap 400. A control ring 500 can be disposed in the cap 400 such that, in addition to relative translational movement between the control ring 500 and the pusher 600, relative rotational movement between the control ring 500 and the pusher 600 can also be achieved. For example, the control ring 500 can be disposed in the cap 400 in such a way that the control ring can rotate about the central longitudinal axis of the cap 400 but cannot move in the axial direction.

[0058] The rubber component 700 can be formed, for example, as a bellows, such that its length varies in the axial direction to prevent foreign objects such as dust and dirt from entering the push-push assembly 100. The rubber component 700 can be threaded to facilitate fastening to the cap 400. Accordingly, the cap 400 can also have threads on its second end 410 to engage with corresponding threads on the rubber component 700.

[0059] In the example, each guide path has a first guide path 204 and a second guide path 216. The first guide path 204 and the second guide path 216 are formed along the outer periphery of the housing 200. Further, the first guide path 204 and the second guide path 216 may each have one or more backflow prevention features.

[0060] The first guide path 204 allows guided movement of the locking feature, wherein the locking feature of the cap 400 slides along the first guide path 204 as the cap 400 moves relative to the housing 200 during engagement. The first guide path 204 has a retraction feature including a plurality of stops 206, 208, each stop formed at either end of the first guide path 204 to limit movement of the locking feature of the cap 400 and to facilitate torsion of the cap 400 along the first guide path 204. The retraction feature of the first guide path 204 may further have a yieldable latch 210 to limit movement of the locking feature in the disassembly direction. The yieldable latch can yield upon application of a threshold force to facilitate forced locking of the cap and prevent rotation in the disassembly direction. In the example, when the housing 200 and the cap 400 are in an assembled state, the locking feature of the cap 400 is locked between two retraction features (i.e., the yieldable latch 210 and the stops 208). The housing 200 further has an access channel region 202, which is formed in a gap in the first guide path 204 to allow the locking feature of the cap 400 to engage with the housing 200.

[0061] A second guide path 216 is formed along the outer periphery to guide the movement of the locking feature to limit its movement in the disassembly direction. The second guide path 216 may have a backstop feature to limit the movement of the locking feature of the cap 400. The second guide path 216 allows guided movement of the locking feature of the cap 400 to allow relative rotational movement of the cap 400, wherein the second guide path 216 includes a blocking wall that limits the movement of the locking feature in the disassembly direction.

[0062] In the example, the first guide path 204 and the second guide path 216 are formed as two separate features on the outer wall of the housing 200. The first guide path 204 may be axially spaced from the second guide path 216, and in the example, the first guide path 204 may be close to the open end of the housing 200, while the second guide path 216 may be axially away from and toward the opposite end of the housing 200.

[0063] In the example above, housing 200 has a first guide path 204 and a second guide path 216. In another example, housing 200 has a set of two guide paths formed on the outer wall of housing 200 and diametrically opposed to each other, each guide path having a backstop feature. In other words, in the example above, housing 200 includes a set of two first guide paths 204 and a set of two second guide paths 216. In the example above, the two first guide paths 204 are formed on the outer peripheral wall of housing 200, and the two first guide paths 204 are separated from each other at their ends by two entry channel regions 202 that are almost diametrically opposed to each other. Accordingly, each of the two first guide paths 204 has a stop and a yieldable latch to interact simultaneously with a set of two locking features on cap 400 when cap 400 and housing 200 are engaged.

[0064] In the same example, housing 200 includes a set of two second guide paths 216 formed on the outer peripheral wall of housing 200. Accordingly, each of the two second guide paths 216 has a blocking wall extending from the support surface to interact with a set of two locking features on cap 400 when cap 400 and housing 200 are engaged.

[0065] Furthermore, the cap 400 has a locking feature formed on its inner wall to interact with a feature of the housing, thereby locking it in a detachable engagement with the housing 200. Additionally, the cap 400 is made of a flexible material (e.g., plastic) to be flexible in the radial direction near a first end 408, allowing the cap 400 to be disassembled by disengaging the locking feature from the housing 200. Accordingly, with the embodiment described above, the cap 400 can be assembled with and removed from the housing 200 when needed without breaking or damaging these components from the assembly. Accordingly, the push-push assembly 100 can be repairable and reusable. In the example, the cap 400 may have a fixed locking feature and a flexible locking feature formed on its periphery. In this example, a first guide path 204 in the guide path may interact with the fixed locking feature of the cap 400, and a second guide path 216 in the guide path may interact with the flexible locking feature.

[0066] The locking feature can be configured to allow the cap 400 to rotate along the first guide path 204 of the housing 200. Furthermore, the locking feature ensures that the cap 400 is forcibly locked to the first guide path 204 on the housing 200 and restricts the assembly from being accidentally disassembled.

[0067] The flexible locking feature can be configured to contact a barrier wall forming part of the second guide path 216 during assembly, thereby limiting excessive twisting of the cap 400 around the housing 200. Furthermore, the flexible locking feature can be configured such that when a force is applied to the first end 408 of the cap 400, the shape of the first end 408 changes from a generally circular profile to an elliptical profile, thereby forcing the flexible locking feature to translate from its original position, which is the position of the flexible locking feature when no force is applied. Accordingly, the translated flexible locking feature is allowed to pass over the barrier wall of the second guide path 216 and allows the cap 400 to be detached from the housing 200.

[0068] In order to operate the flexible locking feature and disengage it from the second guide path 216, the cap 400 may have a clamp formed on its periphery, thereby allowing force to be applied to flex the first end 408 of the cap 400 and change the shape of the first end 408 of the cap 400 from a generally circular profile to an elliptical profile. This change in shape of the first end 408 of the cap 400 to an elliptical or oval shape increases the distance between the flexible locking feature and the second guide path 216 and allows the flexible locking feature to cross the second guide path 216 to disengage it.

[0069] In the example described above where the guide features are provided in a set of two, the cap 400 may also have a set of two locking features, each locking feature engaging with one of the two guide paths 204, 216. In this example, each set of locking features includes a fixed locking feature and a flexible locking feature. Accordingly, each of the two flexible locking features interacts with one of the two second guide paths 216. In other words, each of the two flexible locking features is operable to move along and contact one of the two second guide paths 216. Further, each of the two fixed locking features 406 interacts with one of the two first guide paths 204, i.e., each of the two fixed locking features is operable to move along and contact one of the two first guide paths 204. Accordingly, the cap 400 can engage with the housing 200 by the relative movement between them.

[0070] Figures 2A to 2G The assembly of various parts of the push-push assembly 100, as shown in the example of this topic, is illustrated. Figure 2A The shell and elastic components of the push-push assembly are shown in an unassembled state. Figure 2B The pusher and control ring of the push-push assembly 100 in an unassembled state are shown. Furthermore, Figure 2C This shows the position where the actuator and control ring are assembled together. Figure 2DThe actuator and control ring are shown assembled with the housing. Figure 2E The cap of the push-push assembly is shown before it locks into the housing. Figure 2F The cap, assembled with the shell, is shown. Figure 2G The rubber components of the push-push assembly are shown before assembly. For simplicity and ease of understanding, they are provided in relation to each other. Figures 2A to 2G The description.

[0071] The housing 200 is provided with a chamber in which the elastic member 300 can be mounted. According to the example in this subject matter, Figure 2A The elastic member 300 is depicted being loaded into the cavity of the housing 200 in the axial direction indicated by arrow 110. In the example, the elastic member 300 may be a compression spring; however, it may be similar to any component exhibiting properties similar to those of a compression spring. When loaded into the housing 200, the elastic member 300 may be in a state of equilibrium, i.e., neither compressed nor extended, and therefore does not exert any force on other components.

[0072] Figure 2B and Figure 2C The next step in assembling the push-push component 100 according to the example of this topic is shown. As described above, Figure 2B The pre-assembled configuration of the control ring 500 and the actuator 600 is shown. Figure 2C The control ring 500 and actuator 600 are shown in their assembled configuration. To achieve... Figure 2C In the configuration of the actuator 600, the control ring 500 is inserted along the axis of the actuator 600 in the axial direction indicated by arrow 110, so that the control ring 500 is first assembled to the actuator 600 before being inserted into the housing 200. The control ring 500 can help adjust the degree to which the actuator 600 can be positioned within the housing 200. Then it can be... Figure 2C The control ring 500 and actuator 600, as depicted, are assembled within the hollow cylindrical cavity of the housing 200. Figure 2D The resulting configuration depicted causes the actuator 600 to compress the elastic member 300, such that the elastic member 300 applies a force to the assembly in an axial direction opposite to that shown by arrow 110 (i.e., outward from the hollow cylindrical cavity of the housing 200).

[0073] In the next step of the assembly sequence of the push-push assembly 100, the cap 400 can be moved by first moving along... Figure 2E The arrow 110 shown moves in the direction of movement and locks into the housing 200. The cap 400 may include locking features formed within its cavity to facilitate engagement of the locking features with a guide path of the housing 200. Furthermore, the cap 400 may... Figure 2FRotating in the direction 120 shown causes the locking feature to follow the guide path formed on the housing 200, thereby locking the cap 400 to the housing 200.

[0074] Furthermore, such as Figure 2G As shown, the rubber component 700 is attached to the end of the cap 400 facing away from the housing 200 and covers the end of the pusher 600 protruding from the cap 400. As described above, the rubber component 700 may be threaded to facilitate fastening with corresponding threads provided on the cap 400. Figure 2G The pre-assembled configuration of rubber part 700, as exemplified by this topic, is shown. Figure 3 The fully assembled configuration of the push-push assembly 100 is shown, with the housing 200 depicted in a transparent view to show the assembled internal components.

[0075] According to this subject matter, housing 200 may include features formed on its periphery that enable easy assembly and disassembly of components of push-push assembly 100. See below for reference. Figures 4A to 4C , Figures 5A to 5B , Figures 6A to 6C , Figure 7 and Figures 8A to 8B Describe the various features of the housing 200.

[0076] exist Figures 4A to 8B In the example shown, the housing 200 has a set of two guide paths formed on the outer wall of the housing 200 and opposite to each other in the diametrical direction, each guide path having a first guide path 204 and a second guide path 216 as described above. In this example, the two first guide paths 204 are separated by two access channel regions 202, which are formed by a gap between two corresponding ends of the two first guide paths 204. However, in another example, the first guide path may be formed as a single continuous structure having access channel regions 202 formed as gaps in the first guide path 204 to facilitate the entry of the cap 400 during assembly.

[0077] Figure 4A This shows the entrance to passageway area 202, in Figure 4B The image further zooms in to show the area of ​​the entrance passage. Figure 4B The entry channel region 202, indicated by the diagonal shaded area, is highlighted. In the example described above, where the guide path includes two first guide paths 204, a pair of entry channel regions 202 may be disposed on the outer peripheral wall of the housing 200 and positioned opposite each other in the diametrical direction. Figure 4CThe image shows an entry channel region 202, depicting a set of two entry channel regions 202 arranged on a housing 200 according to an example of this subject matter. Accordingly, to match this configuration of the first guide path 204, the cap 400 may include two fixing locking features opposite each other in the diametrical direction to interact with the respective entry channel regions 202 to engage them with the housing 200. The structure of the cap 400 will be discussed in detail later.

[0078] Figure 5A This showcases another aspect of housing 200, focusing on Figure 5B The first guide path 204 is shown in a further magnified view. Figure 5A The first guide path 204, included within the dashed box, is highlighted. The first guide path 204 is disposed on the outer wall of the housing 200 and facilitates the twisting or rotation of the cap 400 along the first guide path 204 during assembly. The first guide path 204 has an access channel area to allow the cap 400 to enter axially toward the closed end of the housing to engage with the first guide path 204.

[0079] Furthermore, the first guide path 204 has stops 206 and 208 disposed at both ends of the first guide path 204. Accordingly, the locking feature of the cap 400 can slide past the stop 206, and the stop 206 can prevent the feature from moving in the opposite direction by acting as a blocking member. Further, the first guide path 204 also restricts the cap 400 due to its position relative to arrow 110 (see arrow 110). Figure 2A , Figure 2B or Figure 2E The push-push assembly 100 is disassembled by an axial force in the opposite direction to the axial direction of the load, which is applied by a compression elastic member 300 mounted in the housing 200. Therefore, a reaction force is provided against the loaded and compressed elastic member 300 to prevent malfunctions in the push-push assembly 100. Accordingly, it is ensured that the components of the push-push assembly are not accidentally disassembled due to the force applied by the elastic member 300.

[0080] On the other side of housing 200, such as Figure 6A As shown, stops 206 and 208 extend in the axial direction and form at both ends of the first guide path 204 of the housing 200. Further enlarged views of stops 206 and 208 are shown in... Figure 6B and Figure 6C As shown in the example in this subject, a stop 206 may be provided at one end of the first guide path 204, adjacent to the entry channel region 202. The stop 206 can limit the rotation of the cap in the disassembly direction by acting as a barrier. In the example, the stop 206 may have a raised ramp portion to facilitate the locking feature of the cap 400 from the entry channel region 202 into the first guide path 204.

[0081] Furthermore, stop 206 can restrict the locking feature from sliding in the direction opposite to the assembly direction, thereby ensuring that the assembly does not fail, for example, when exposed to a vibration environment. Similarly, stop 208 can be provided at the other end of the first guide path 204 to limit further rotation of the cap 400 by restricting further sliding of the locking feature. Stops 206 and 208 are formed on the outer wall of the housing 200 at both ends of the first guide path 204.

[0082] Additionally, the first guide path 204 may have a yieldable latch 210, such as Figure 7 As shown, this is to enforce a locking of the cap 400 and prevent rotation of the cap 400 in the disassembly direction. A yieldable latch 210 can be positioned along the path of the locking feature of the cap 400, which slides along the first guide path 204. In the previously given example, the housing 200 includes a set of two guide paths 204, 216, and therefore a set of two first guide paths 204, each of which is provided with a yieldable latch. In other words, a set of two yieldable latches 210 are positioned on the outer peripheral wall of the housing 200, these two yieldable latches are diametrically opposed to each other and can cooperate with the corresponding fixing locking feature 406 of the cap 400. The yieldable latch 210 locks the locking feature of the cap 400 and prevents it from rotating in the disassembly direction.

[0083] Furthermore, the movement of the locking feature on the cap 400 in one rotational direction can be limited by the stop 208, and its movement in another rotational direction can be limited by the yieldable latch 210, thereby ensuring a secure lock between the cap 400 and the housing 200. The yieldable latch 210 is configured such that when the cap 400 is rotated for assembly, the locking feature applies a first threshold force that can force the yieldable latch 210 to yield or depress. Accordingly, the locking feature is allowed to pass over the yieldable latch 210 and forcibly lock the cap 400 to the housing 200. However, the yieldable latch 210 can limit the rotation of the cap 400 in the disassembly direction, thereby ensuring that the cap is not accidentally disassembled due to vibration.

[0084] In the example, an arrangement of the access channel region 202, the first guide path 204 having stops 206 and 208, and the yieldable latch 210 can be provided such that they occupy less than half of the outer periphery of the housing 200. Accordingly, a set of two first guide paths 204 can be arranged, as mentioned in the example above, thereby arranging another set of the above-described features of the housing 200 on the other half of the outer periphery of the housing 200.

[0085] In addition to the features previously mentioned for the housing 200 according to the foregoing example, it also has a set of two second guide paths 216, each of which is formed on the outer peripheral wall of the housing 200 and axially spaced from the first guide path 204. Figure 8A and Figure 8B As shown, the second guide path 216 has a retraction feature including a blocking wall 212 extending from the support surface 214. The second guide path 216 allows the cap 400 to rotate for relative rotational movement to position the flexible locking feature of the cap 400 against and on the second guide path 216. According to the example of this subject matter, the blocking wall 212 protrudes from the support surface 214.

[0086] Figure 8A and Figure 8B Essentially, the same features are shown, but arranged on opposite sides of the outer periphery of the housing 200. Thus, a set of two blocking walls 212 can be arranged on opposite sides of the outer periphery of the housing 200 and serve as blocking walls to ensure that a set of different locking features formed on the cap 400 (different from those locking features locked by stops 206 and 208) are prevented from rotating further in the assembly direction.

[0087] The aforementioned features of the housing 200 thus enable the push-push assembly 100 to be reused and allow the cap 400 to be easily assembled with minimal rotation. Furthermore, the configuration of the housing 200 as described above makes the cap 400 non-removable in the event of unintentional disassembly.

[0088] As described above, the cap 400 may include features mirroring those of the housing 200 to enable operation of the push-push assembly 100 of this subject matter. For the sake of brevity, they can be described in relation to each other herein. Figures 9A to 9C These figures all illustrate a cap 400. According to examples in this subject matter, the cap 400 is a through cylinder having an open first end 408 and an equally open second end 410, and is formed of a flexible material. The cap 400 further includes a clamping portion 402 and locking features 404, 406. In an example where the housing 200 has a set of two guide paths 204, 216, the cap may have a set of two locking features 404, 406 configured to complement these two guide paths 204, 216 to facilitate engagement of the cap 400 and the housing 200 during assembly / disassembly operations. In the example described, each of the two locking features may include a fixed locking feature 406 and a flexible locking feature 404.

[0089] The cap 400 is formed to have a shape complementary to the housing 200. Specifically, a flexible locking feature 404 is operable to move along and contact the housing 200 along a second guide path 216, and a fixed locking feature is operable to move along and contact the housing 204 along a first guide path 204. Accordingly, the cap 400 can engage with the housing 200 by relative movement between the cap and the housing. The clamp 402 can be, for example, one of a knurled feature and a rib formed on the outer periphery of the first end 408 of the cap 400 for gripping purposes. In the example, a pair of clamps 402 are arranged opposite each other in the diametrical direction to allow a force to be applied to force the pair of clamps 402 toward each other. The flexible locking feature 404 can be provided such that when a force is applied by pressing the pair of clamps 402 together, the circular profile of the cap 400 can be transformed into an elliptical profile. As a result, the flexible locking feature 404 is forced to translate to perform an action of removing the cap 400 from the housing 200.

[0090] In the example above, a set of two flexible locking features 404 may be disposed adjacent to the first end 408 and within the cavity of the cap 400, with each flexible locking feature disposed on opposite sides of the periphery of the cap 400. Similarly, in the same example, a set of two fixed locking features 406 may be formed on the cap 400 adjacent to the second end 410 and within the cavity of the cap 400, with each fixed locking feature formed on opposite sides of the periphery of the cap 400. Accordingly, each of the two fixed locking features 406 may engage with a corresponding first guide path 204 of the set of two first guide paths 204 of the housing 200. Furthermore, each of the two flexible locking features 404 may engage with a corresponding second guide path 216 of the set of two second guide paths 216 of the housing 200. Therefore, in the configuration provided in the above example, complete rotation of the cap 400 around the housing 200 is not required, thereby reducing the labor required for assembling and disassembling the push-push assembly 100.

[0091] Based on the examples in this topic, this article references Figures 10 to 1 4. To further describe the operation of the locking feature of cap 400 during the assembly operation. Further, Figure 11A , Figure 12A , Figure 13A and Figure 14A This is a top-section cross-sectional view, focusing on the position of the locking feature 406 of the cap 400 relative to the housing 200 at various stages of the assembly of the cap 400 and the housing 200. Figure 11B , Figure 12B , Figure 13B and Figure 14B It is a top-section view, focusing on the position of the cap's flexible locking feature 404 relative to the housing 200 at various stages of assembly. Figure 15A and Figure 15B It is a top-section view, focusing on the relative position of the flexible locking feature 404 during the removal of the cap 400 from the housing 200.

[0092] Figure 10 The position of the cap 400 relative to the housing 200 is shown (depicted in a transparent view) such that the fixing and locking feature 406 of the cap 400 is located in the access channel area of ​​the housing 200. Figure 10 The state shown is the initial connection state between the cap 400 and the housing 200. This is also true in... Figure 11A Another view is shown, which is a top cross-sectional view taken at a section where the locking feature 406 is visible. It can be seen that the locking feature 406 is located in the access channel region 202 of the housing 200. Meanwhile, in Figure 11B In the configuration shown, the figure displays a top-view cross-section taken at a point where the flexible locking feature 404 is visible, and the flexible locking feature 404 is in contact with the second guide path 216.

[0093] In the next step of the assembly sequence, the cap 400 can rotate relative to the housing 200 in direction 120, such that the locking feature 406 can contact the first guide path 204. Accordingly, during this rotation, the locking feature 406 can begin to slide along the outer wall of the housing 200 and along the first guide path 204. During this rotational movement, the locking feature 406 can radially abut against the outer wall of the housing 200 and axially abut against the first guide path 204. This position of the locking feature is... Figure 12A As shown in the image. Also, as... Figure 12B As shown, the flexible locking feature 404 is also in a rotating state, wherein the flexible locking feature 404 slides along the outer wall of the housing 200 and is near the support surface 214 of the blocking wall 212 of the second guide path 216.

[0094] The subsequent positions of the fixed locking feature 406 and the flexible locking feature 404 are respectively in Figure 13A and Figure 13B As shown in the image. Figure 13A As shown, with cap 400 from Figure 12A and Figure 12BAs the position of the cap 400 rotates further, the locking feature 406 contacts the yieldable latch 210 of the first guide path 204. Accordingly, as the locking feature 406 moves along the yieldable latch 210, both the yieldable latch 210 and the locking feature 406 can flex, i.e., be compressed by the corresponding reaction forces on the yieldable latch and the locking feature. Further rotation of the cap 400 allows the yieldable latch 210 and the locking feature 406 to return to their neutral state, i.e., uncompressed state, thereby locking the cap 400 and preventing it from rotating in the opposite direction to the assembly. In other words, in the assembled state, the locking feature 406 of the cap 400 is locked between the yieldable latch 210 and the stop 208. This state of the locking feature 406 in… Figure 14A As shown in the image.

[0095] At the same time, such as Figure 13B As shown, the flexible locking feature 404 deforms from a circular profile 450 into an elliptical profile while crossing the support surface 214 of the blocking wall 212 of the second guide path 216. Once the flexible locking feature 404 of the cap 400 crosses the support surface 214 of the housing 200, the flexible locking feature 404 is restricted by the blocking wall 212 to not rotate in the opposite direction to the direction of rotation during assembly. This state of the flexible locking feature 404 in Figure 14B As shown in the image. Figure 14A and Figure 14B This demonstrates the position where the cap 400 and the housing 200 are locked.

[0096] Figure 14A Specifically, each locking feature 406 of the cap 400 is locked between the corresponding yieldable snap fastener 210 and the stop 208 of the first guide path 204. The yieldable snap fastener 210 ensures the cap 400 is firmly locked and prevents the cap 400 from rotating in the direction opposite to the assembly direction. Furthermore, the stop 208 restricts further movement of the locking feature 406 in the assembly direction. Accordingly, it ensures that accidental disassembly will not occur, for example, due to vibration. Figure 14B The flexible locking feature 404 is shown in a locked state, restricted from rotating in the disassembly direction by the blocking wall 212 of the second guide path 216.

[0097] In the assembly method of cap 400 and housing 200 as described above, the rotation of cap 400 is significantly reduced. For example, the two can be assembled together with a rotation of less than 360 degrees relative to housing 200, without requiring full rotation to achieve a secure assembly. As a result, additional features that could increase the size of the assembly, such as threads, are unnecessary. Furthermore, the presence of a set of two features for each of the two features—a set of two fixing locking features 406, a set of two flexible locking features 404, a set of two yieldable snap fasteners 210, and a set of two blocking walls 212—further reduces rotation, allowing for efficient assembly, which in turn improves assembly productivity. Moreover, in the case of push-push assembly 100, the arrangement of the first guide path 204, which is a thick structure, can limit the cap 400 from being pushed out by the internal force applied by the elastic member 300 without damage and can withstand such tangential / axial forces.

[0098] To describe the process of removing the cap 400 from the housing 200, please refer to [the relevant source]. Figure 15A and Figure 15B To remove the cap 400 from the housing 200: First, as... Figure 15A As depicted, compressive forces can be applied to the clamp 402 in opposite and linear directions 130 and 140. The configuration resulting from the forces applied to the cap 400 is that the circular outline of the cap 400 deforms as follows: Figure 15B The elliptical profile shown. The resulting configuration increases the distance between a set of two flexible locking features 404 on the inner wall of the cap 400, allowing the flexible locking features 404 to pass over the blocking wall 212 for removal. The cap 400 can then be rotated in direction 150, which is the removal direction and opposite to the rotation direction used for assembly. This rotation allows the flexible locking features 404 to disengage from the blocking wall 212 of the support surface 214. The cap 400 is then allowed to rotate freely and detach from the housing 200.

[0099] Although the push-push assembly 100 has been described in language specifically addressing structural features and / or methods, it should be understood that the appended claims are not limited to the specific features described. Rather, the specific features are disclosed only as examples of the push-push assembly 100.

Claims

1. A push-push assembly (100), comprising: A cap (400) formed as a cylinder having a first end (408), a second end (410) and locking features (404, 406) on the inner wall, wherein the cap (400) is flexible in the radial direction near the first end (408); A housing (200), formed as a closed-end cylinder and having a shape complementary to the cap (400) for engagement with the cap (400) by relative movement between the housing and the cap, the housing (200) including guide paths (204, 216) formed on its outer wall for guided movement of the locking features (404, 406), wherein the lock of the cap (400) is engaged when the cap (400) moves relative to the housing (200) during engagement. Fixed features (404, 406) slide along the guide path (204, 216), wherein the guide path (204, 216) includes a backstop feature (206, 208, 210, 212) that interacts with the locking feature (404, 406) of the cap (400) to allow the locking feature (404, 406) of the cap (400) to disengage from the housing (200) and to limit accidental disengagement of the cap (400); An elastic member (300) is disposed in the housing (200); A actuator (600), the actuator being disposed in the housing (200) and movable relative to the housing (200), wherein the actuator (600) is operatively coupled to the elastic member (300) to control the movement of the actuator (600) within the housing (200), the actuator (600) including a first traveling member (602) to adjust the movement of the actuator (600); and A control ring (500) is disposed in the cap (400) and has a second travel member (502) to work in conjunction with the first travel member (602) of the pusher (600) to regulate the movement of the pusher (600) in the housing (200).

2. The push-push assembly (100) as claimed in claim 1, wherein, The guide paths (204, 216) include a first guide path (204) formed along the outer periphery of the housing (200) near the open end of the housing (200).

3. The push-push assembly (100) as described in claim 2, wherein, The first guide path (204) includes an entry channel region (202) formed in the gap of the first guide path (204).

4. The push-push assembly (100) as described in claim 2, wherein, The locking features (404, 406) of the cap (400) include a fixed locking feature (406) to act together and slide along the first guide path (204) as the cap (400) moves relative to the housing (200).

5. The push-push assembly (100) as described in claim 2, wherein, The backstop features (206, 208, 210, 212) of the first guide path (204) include a plurality of stops (206, 208), each stop being formed at either end of the first guide path (204) to restrict movement of the locking feature (406) of the cap (400).

6. The push-push assembly (100) as claimed in claim 2, wherein, The backstop features (206, 208, 210, 212) of the first guide path (204) include a yieldable snap fastener (210) that yields when a first threshold force is applied by the locking feature (406) of the cap (400) when the cap is rotated in the assembly direction and when a second threshold force is applied by the locking feature (406) of the cap (400) when the cap is rotated in the opposite direction to the assembly direction.

7. The push-push assembly (100) as claimed in claim 1, wherein, The housing (200) includes two back-return features (206, 208, 210, 212), and in the assembled state, the locking feature (404, 406) of the cap (400) is locked between the two back-return features (208, 210).

8. The push-push assembly (100) as claimed in claim 2, wherein, The first guide path (204) occupies less than half of the outer periphery of the housing (200).

9. The push-push assembly (100) as described in any one of claims 1 or 2, wherein, The guide path (204, 216) includes a second guide path (216) formed along the outer periphery to allow the locking feature (404, 406) to undergo guided movement to restrict the movement of the locking feature (404) in the disassembly direction.

10. The push-push assembly (100) as claimed in claim 9, wherein, The backflow features (206, 208, 210, 212) of the second guide path (216) include a barrier wall (212).

11. The push-push assembly (100) as claimed in claim 10, wherein, The locking features (404, 406) of the cap (400) include a flexible locking feature (404) formed near the first end (408) of the cap (400) and having a wedge shape to engage with the blocking wall (212) of the housing.

12. The push-push assembly (100) as claimed in claim 11, wherein, When a force is applied to the first end (408) of the cap (400), the first end (408) flexes to disengage the flexible locking feature (404) from the barrier wall (212) to remove the cap (400) from the housing (200).

13. The push-push assembly (100) as claimed in claim 1, wherein, The cap (400) further includes a clip (402) formed on the outer periphery of the first end (408) of the cap (400).

14. The push-push assembly (100) as claimed in claim 1, wherein, The housing (200) includes a set of two guide paths (204, 216) and the cap (400) includes a set of two locking features.

15. The push-push assembly (100) as claimed in claim 14, wherein, The guiding path (204, 216) includes: Two first guide paths (204) are formed on the outer periphery of the housing (200) and separated at both ends by an entry channel region (202); and Two second guide paths (216) are formed on the outer periphery of the housing (200) and are substantially opposite each other in the diametrical direction.

16. The push-push assembly (100) as claimed in claim 15, wherein, The cap (400) includes: Two fixed locking features (406), each of which interacts with one of the two first guiding paths (204); and Two flexible locking features (404) each work in conjunction with one of the two second guiding paths (216).

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