Transition car coupler and coupling method thereof

Abstract

The invention provides a transition car coupler and an automatic coupling method of the transition car coupler. The transition coupler comprises a coupler head and a coupler tail, a connecting face is formed on the side, connected with a train coupler, of the coupler head, and a coupler head body is arranged between the connecting face and the coupler tail. A coupler knuckle structure is formed on the connecting face and used for being connected with a coupler knuckle of a train coupler. A concave cone structure is formed on the connecting surface and is used for accommodating a convex cone of a train coupler; and the concave cone structure comprises a cavity formed from the coupling surface to the inside of the hook head main body. The coupler knuckle of the transition coupler is attached to the coupler knuckle of the train coupler, and when the transition coupler and the train coupler are moved close to each other, the coupler knuckles of the two couplers extrude each other and are guided to move until the coupler knuckles of the two couplers are coupled.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicle couplers, and in particular to a transition coupler used for a transition coupler and a coupling method thereof. Background Art

[0002] The transition coupler is used to connect with the train's regular coupler during vehicle rescue.

[0003] Different models and types of trains use different types of official couplers. However, different official couplers have different structures. In the prior art, there is a universal transition coupler that can be adapted to connect multiple types of official couplers. However, due to the fixed structure of the universal coupler, it is difficult to use the refined differences between different types of trains. A better way is to adapt to different official couplers, and it is necessary to study special transition couplers. Domestic and foreign rail transit transition couplers include Type 10 transition couplers, Shibata-type transition couplers and locomotive transition couplers.

[0004] As for the close-connected coupler, there is no reliable transition coupler for the current BSI type formal coupler. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and to provide a transition coupler and a connection method thereof.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A transition coupler is used for connecting with a train coupler, the train coupler comprises a hook head, a convex cone and a concave cone are formed on the hook head, and the transition coupler comprises:

[0008] Hook head and hook tail: The hook head is connected to the train coupler on one side and a connecting surface is formed, and the connecting surface and the hook tail are the hook head body;

[0009] A hook tongue structure is formed on the coupling surface for coupling with the hook tongue of a train coupler;

[0010] A concave cone structure is formed on the connecting surface for accommodating the convex cone of the train hook; the concave cone structure includes a cavity formed by the connecting surface toward the inside of the hook head body.

[0011] In some embodiments of the present invention, the hook tongue structure includes a convex cone formed on the connecting surface, a hook tongue block is provided on the side of the convex cone facing the concave cone structure, the hook tongue block is formed with an inclined surface, the wider end of the inclined surface is close to the connecting surface, and the edge of the inclined surface close to the connecting surface shrinks toward the side away from the concave cone structure to form a hook tongue.

[0012] In some embodiments of the present invention, the transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes a first positioning boss provided on the upper end surface of the bottom plate of the concave cone portion of the BSI coupler,

[0013] The hook tongue structure includes a convex cone formed on the connecting surface, and a first auxiliary positioning block is provided on the lower end surface of the convex cone; when the transition coupler is connected to the train coupler, the first auxiliary positioning block cooperates with the train coupler.

[0014] In some embodiments of the present invention, the transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes:

[0015] A second auxiliary positioning block is provided on the lower end surface of the concave cone structure cavity; when the transition coupler is connected to the train coupler, the second auxiliary positioning block cooperates with the train coupler.

[0016] In some embodiments of the present invention, the transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes:

[0017] The concave cone structure of the transition coupler and the hook tongue structure form a stepped transition structure, and a stepped transition side surface is formed between the concave cone structure and the hook tongue structure, and the concave cone structure side extends farther below the hook head relative to the hook tongue; when the transition coupler is connected to the train coupler, the stepped transition side surface cooperates with the train coupler.

[0018] In some embodiments of the present invention, the transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes an extension block arranged on the convex cone of the transition coupler and facing the side of the concave cone structure. When the transition coupler is connected to the train coupler, the side of the extension block facing the side of the concave cone structure cooperates with the side of the convex cone of the train coupler.

[0019] In some embodiments of the present invention, the shape of the cavity of the concave cone structure is adapted to the external shape of the convex cone structure of the train coupler.

[0020] In some embodiments of the present invention, a concave notch extending toward the hook tail is formed on the side wall of the cavity of the concave cone structure away from the hook tongue.

[0021] A method for connecting a transition coupler, applied to the above-mentioned transition coupler, comprises the following steps:

[0022] The hook tongue of the transition coupler fits with the hook tongue of the train coupler, and the transition coupler and the train coupler are moved close to each other, the hook tongues of the two couplers are squeezed against each other, and the movement is guided until the hook tongues of the two couplers are connected.

[0023] In some embodiments of the present invention, the method for connecting a transition coupler further comprises the following steps:

[0024] During the connection between the transition coupler and the train coupler, each set of positioning structures matches relative to each other.

[0025] Compared with the prior art, the transition coupler provided by the present invention has the following beneficial effects:

[0026] 1. The transition coupler can be used for close-fitting couplers, especially BSI type couplers, realizing the transition coupler for BSI type couplers at home and abroad.

[0027] 2. A special hook tongue structure adapted to the BSI coupler is designed with a fixed hook tongue structure and a hook tongue guide structure. The special guiding function of the transition coupler can realize the automatic connection between the rescue train and the rescued coupler, meet the needs of rail transit train rescue and rescue, reduce the difficulty and cost of rescue, and ensure that the rescue time meets the requirements of railway passenger transportation.

[0028] 3. A new method for single-side extrusion automatic coupling of transition couplers has been invented. With the cooperation of the fixed hook tongue of the transition coupler and multiple sets of positioning structures, the automatic coupling of the transition coupler can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 This is a schematic diagram of the BSI coupler structure from the first perspective;

[0031] Figure 2 This is a schematic diagram of the BSI coupler structure from the second perspective;

[0032] Figure 3 This is a schematic diagram of the transition coupler structure from the first perspective;

[0033] Figure 4 This is a schematic diagram of the transition coupler structure from the second perspective;

[0034] Figure 5 This is a third-view structural diagram of the transition coupler;

[0035] Figure 6 This is a schematic diagram of the structure of the transition coupler from the fourth perspective;

[0036] Figure 7 This is a schematic diagram of the connection structure between the transition coupler and the BSI coupler;

[0037] Figure 8a A structural diagram of the transition coupler and the BSI coupler in the connected state;

[0038] Figure 8b Schematic diagram of the transition coupler and the BSI coupler in the second connected state;

[0039] Figure 9a A structural diagram of the transition coupler and the BSI coupler in the uncoupled state;

[0040] Figure 9b Schematic diagram of the transition coupler and the BSI coupler in the uncoupling state 2;

[0041] Reference numerals for BSI couplers:

[0042] 1-hook head, 101-hanging noodle, 102-convex cone, 103-concave cone, 104-hook head body, 105-cavity, 106-first positioning boss, 107-second positioning boss, 108-plate structure, 109-third positioning boss;

[0043] 2-Hook tail,

[0044] 3-hook tongue, 301-hook tongue rod, 302-hook tongue, 303-inclined surface;

[0045] 4- Spring;

[0046] 5-unhooking handle;

[0047] Reference numerals corresponding to the transition coupler:

[0048] 6-hook body, 601-hanging surface, 602-concave cone cavity, 6021-concave notch;

[0049] 7-hook tail, 701-hook pin hole;

[0050] 801-convex cone, 802-hook tongue block, 803-hook tongue, 804-inclined surface, 805-weight reduction hole, 806-extension block;

[0051] 901-first auxiliary positioning block, 902-second auxiliary positioning block, 903-step transition side. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] In the description of the present application, it should be noted that the fixed connection described in the present application can be a detachable fixed connection or an integrated fixed connection; the indication of the orientation or positional relationship is based on the positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0054] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0055] The present invention provides a transition coupler and a method for connecting a transition coupler, which is suitable for connecting a train-like coupler in which a hook tongue is inserted from the side of a hook body, for example, it can be used for connecting a BSI coupler. In this embodiment, the structure and the method for connecting a transition coupler are described by taking a BSI coupler as an example. The following terms: formal coupler and train coupler all refer to couplers on formal vehicles.

[0056] First, the structure of the BSI coupler is explained. Figure 1 and Figure 2 .

[0057] The BSI coupler comprises a hook head 1, one end face of which is a connecting surface 101, and a convex cone 102 and a concave cone 103 are formed on one side of the connecting surface. The rear end of the hook head 1 is a hook tail 2, and a hook head body 104 is between the hook head 1 and the hook tail 2.

[0058] A cavity 105 is formed on the hook body of the convex cone 102 of the BSI coupler, and a hook tongue 3 is installed in the cavity 105. The hook tongue includes a hook tongue rod 301 and a hook tongue 302, wherein the hook tongue rod is connected to the unhooking handle 5. When the unhooking handle 5 is pulled, the entire movement of the hook tongue 3 can be controlled, and the hook tongue 302 extends from the opening of the cavity toward the concave cone structure. A spring 4 is installed on the hook tongue rod 301. When the hook tongue rod 301 is pulled, the spring 4 is compressed. After the unhooking handle 5 is released, the spring 4 returns to its original length and the hook tongue 302 extends.

[0059] In order to position the connection between the BSI coupler and the transition coupler, a positioning structure between the two is designed, which is described in detail as follows.

[0060] The bottom surface of the concave cone 103 of the BSI coupler has a plate-like structure 108 extending forward of the hook head, and the upper end surface of the plate-like structure 108 has a first positioning boss 106, and the lower end surface of the convex cone 102 has a second positioning boss 108. A stepped transition structure is formed between the plate-like structure 108 and the convex cone 102, that is, the plate-like structure 108 extends further downward relative to the convex cone 102, and the side end surface of the stepped transition structure facing the convex cone 102 is a stepped transition surface, and the side end surface has a third positioning boss 109. Each of the above-mentioned positioning bosses is a protruding block structure formed relative to the corresponding end surface.

[0061] An inclined surface 303 is formed on one side of the hook tongue 302 located outside the hook head. The inclined surface 303 makes the head of the hook tongue 302 longer and forms a connecting hook.

[0062] The structure of the transition coupler provided by the present invention is as follows, Figures 3 to 7 .

[0063] The transitional coupler comprises a hook head and a hook tail 7, wherein a connecting surface 601 is formed on one side of the hook head connected with the BSI coupler, and a hook head body 6 is formed between the connecting surface 601 and the hook tail 7. A connecting pin hole 701 is provided on the hook tail 7. A weight reduction hole 805 is provided on the hook head body 6.

[0064] A hook tongue structure is formed on the hooking surface 601 for hooking with the hook tongue 3 of the BSI coupler;

[0065] A concave cone structure is formed on the connecting surface 601 for accommodating the convex cone 102 of the train coupler to be connected, that is, the convex cone of the BSI coupler in this embodiment; the concave cone structure includes a convex cone cavity 602 formed from the connecting surface to the inside of the hook head body.

[0066] During the coupling operation, the coupling surface 601 of the transition coupler is aligned with the coupling surface 101 of the formal BSI coupler, and the uncoupling handle 5 of the BSI coupler is pulled. After the hook tongue of the transition coupler and the hook tongue 302 of the BSI coupler are aligned for coupling, the uncoupling handle 5 is released to complete the coupling.

[0067] In some embodiments of the present invention, the hook tongue structure of the transition coupler is as follows.

[0068] The hook tongue structure includes a convex cone 801 formed on the connecting surface 601, and the convex cone 801 forms a protruding structure relative to the connecting surface 601. A hook tongue block 802 is provided on the side of the convex cone 801 facing the concave cone structure, and the hook tongue block 802 is formed with an inclined surface 804, the wider end of the inclined surface 804 is close to the connecting surface 601, and the edge of the inclined surface 804 close to the connecting surface 601 is contracted toward the side away from the concave cone structure, and the contracted structure forms a structure similar to a card table, forming a hook tongue 803.

[0069] During the coupling operation, the coupling surface 601 of the transitional coupler is aligned with the coupling surface 101 of the formal BSI coupler, and the uncoupling handle 5 of the BSI coupler is pulled, and the inclined surface 804 of the transitional coupler is aligned with the inclined surface 303 of the BSI coupler, and the inclinations of the two are matched. Through the cooperation of the two inclined surfaces, the hook head of the transitional coupler and the hook tongue of the BSI coupler are squeezed and guided to each other, and the spring 4 is compressed. Under the guidance of the inclined surface, the transitional coupler moves, and the hook tongue 302 of the BSI coupler is aligned for coupling, and the coupling is completed.

[0070] In some embodiments of the present invention, the hook tongue structure includes a convex cone 801 formed on the connecting surface, and the lower end surface of the convex cone 801 is provided with a first auxiliary positioning block 901, which is a protruding block formed relative to the lower end surface of the convex cone 801.

[0071] During the coupling process between the transition coupler and the formal BSI coupler, the convex cone 801 of the transition head extends into the concave cone 103 of the formal BSI coupler, and the first auxiliary positioning block 901 cooperates with the first positioning boss 106, that is, the two protruding blocks abut against each other, completing the limit positioning between the two couplers on the first side in the vertical direction.

[0072] In some embodiments of the present invention, a second auxiliary positioning block 902 is disposed on the lower end surface of the concave cone structure cavity 602, which is a protruding block formed relative to the cavity surface of the concave cone structure.

[0073] During the connection between the transition coupler and the formal BSI coupler, the convex cone 102 of the formal coupler extends into the concave cone cavity 602 of the transition coupler, and the second positioning boss 107 under the convex cone of the formal coupler cooperates with the second auxiliary positioning block 902 of the transition coupler, that is, the two protruding blocks abut against each other, completing the limit positioning between the two couplers on the second side in the vertical direction.

[0074] In some embodiments of the present invention, the concave cone structure and the hook tongue structure form a stepped transition structure, the bottom surface of the concave cone cavity 602 extends farther below the hook head relative to the bottom surface of the hook tongue block 903, and a stepped transition side surface 903 is formed between the concave cone structure and the hook tongue structure.

[0075] During the coupling process between the transition coupler and the formal BSI coupler, when the transition coupler is coupled with the BSI coupler, the stepped transition side surface 903 cooperates with the third positioning boss 903, that is, the stepped transition side surface 903 abuts against the third positioning boss 109, completing the limit positioning between the two couplers in the horizontal direction.

[0076] In some embodiments of the present invention, an extension block 806 facing the concave cone structure cavity 602 is provided on the transition coupler convex cone 801. When the transition coupler is coupled with the BSI coupler, the side surface of the extension block 806 facing the concave cone structure cooperates with the side surface of the convex cone 102 of the BSI coupler, that is, the two side surfaces abut against each other. Thus, the limit positioning between the two couplers can be completed in the horizontal direction.

[0077] Through the above four sets of positioning and unhooking, the positioning between the transition coupler and the BSI coupler can be achieved in two directions of the horizontal dimension and two directions of the vertical dimension, respectively, to ensure the stability of the connection between the two couplers.

[0078] Since the hook tongue structure of the BSI coupler is more distinctive than that of other types of couplers, the uncoupling operation needs to be completed on the side of the coupler, and the uncoupling handle 5 occupies the space on the side of the coupler. Therefore, in the process of coupling with the BSI coupler, it is necessary to consider how the concave cone part of the transition coupler cooperates with the uncoupling handle 5 to avoid coupling interference.

[0079] The shape of the cavity 602 of the transitional coupler concave cone structure is adapted to the external shape of the structure of the BSI coupler convex cone 102, so that it can better adapt to the connection of the BSI coupler convex cone 102. In this embodiment, the BSI coupler convex cone 102 is formed to be approximately conical, and accordingly, the cavity 602 of the transitional coupler concave cone structure is also formed to be approximately conical.

[0080] A concave notch extending toward the hook tail is formed on the side wall of the cavity of the concave cone structure of the transition coupler away from the hook tongue. Specifically, a concave notch 6021 is formed on the side outside the concave cone cavity 602 of the transition coupler. During the process of coupling the transition coupler with the BSI coupler, the unhooking handle 5 is located at the position of the concave notch 6021 to avoid interference between the concave cone cavity 602 and the unhooking handle 5.

[0081] In general, the coupling process of the transition coupler and the BSI coupler is as follows.

[0082] The hook tongue of the transition coupler fits with the hook tongue of the BSI coupler, and the transition coupler and the BSI coupler are moved close to each other, and the hook tongues of the two couplers are squeezed against each other, and the movement is guided until the hook tongues of the two couplers are connected.

[0083] In some embodiments of the present invention, the coupling method further comprises the following steps: during the coupling process between the transition coupler and the BSI coupler, each set of positioning structures matches relative

[0084] In the following, with respect to the coupling and transitioning summarized above, the principles of coupling and uncoupling of the transition coupler and the BSI coupler are further described in detail.

[0085] The coupling / uncoupling principle is as follows.

[0086] Compared with the BSI coupler, the transition hook cancels the stretching type movable hook tongue and is designed to be unhooked with a fixed hook tongue. When hooking, the inclined surface 804 of the fixed hook tongue 803 of the transition hook and the inclined surface 303 of the hook tongue of the BSI formal coupler are pressed against each other, and by compressing the positioning spring 4 of the BSI train coupler, the hook tongue of the BSI coupler moves the compression spring 4, and the hook tongue 803 of the transition coupler guides the movement of the BSI coupler until the hook tongues of the two hooks bite each other. After the hook tongue 302 of the BSI coupler and the hook tongue 803 of the transition coupler are hooked, the positioning spring 4 of the BSI formal coupler returns to its original position, and the two hooks are locked in hooking. At this time, the transition coupler hooking surface 601 is in contact with the formal coupler hooking surface 101.

[0087] Under the limit of the four sets of positioning structures of the transition hook and the BSI coupler, the transition coupler and the formal coupler are connected in place. When the transition coupler is unhooked, the hook tongue rod 301 is lifted by operating the BSI formal coupler unhooking handle 5 to separate the hook tongues of the two hooks, and then the two hooks are slowly pulled back, and the two coupler limit platforms and the connecting surfaces are separated, completing the unhooking of the transition coupler.

[0088] The specific operation process of hooking and unhooking is further described as follows.

[0089] Coupled process: The transition coupler is close to the formal BSI coupler, such as Figure 8a The guiding convex cone 801 of the transition coupler and the concave cone 103 of the BSIBSI coupler guide each other, the guiding concave cone cavity 601 of the transition coupler and the convex cone 102 of the BSIBSI coupler guide each other, the guiding convex cone 801 of the transition coupler enters the concave cone cavity of the formal coupler, and similarly, the convex cone 102 of the formal coupler enters the concave cone cavity 601 of the transition coupler. As the two couplers continue to approach, the fixed hook tongue block 802 of the transition coupler squeezes the hook tongue 302 of the BSI coupler, so that the hook tongue rod 301 of the BSI coupler is pressed into the convex cone of the BSI coupler. When the transition coupler and the BSI coupler's connecting surfaces are close to each other and about to fit together, the fixed hook tongue 802 of the transition coupler is inserted into the rear side of the hook tongue 3 of the BSI coupler. At this time, the transition coupler and the BSI coupler's connecting surfaces fit closely, and the hook tongue 3 of the BSI coupler loses the squeezing of the fixed hook tongue block 802 of the transition coupler and pops out. At this time, the transition coupler and the hook tongue of the BSI coupler are connected. Figure 8b As shown, under the four sets of positioning and unhooking limit positions, the transition coupler and the formal coupler are connected in place.

[0090] Unhooking process: Figure 9a As shown in FIG. 1 , by triggering the BSI coupler self-locking device, the coupler tongue rod 301 of the BSI coupler is retracted into the convex cone of the BSI coupler. At this time, the coupler tongues of the transition coupler and the BSI coupler are separated from each other and lose their limit position. At this time, the couplers are unhooked. After the two couplers are unhooked, the transition coupler can be separated from the BSI coupler by pulling the transition coupler backwards. Figure 9b shown.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transition coupler, characterized in that: Used to be connected with a train coupler, the train coupler includes a hook head, a convex cone and a concave cone are formed on the hook head, and the transition coupler includes: Hook head and hook tail: The hook head is connected to the train coupler on one side and a connecting surface is formed, and the connecting surface and the hook tail are the hook head body; A hook tongue structure is formed on the coupling surface for coupling with the hook tongue of a train coupler; A concave cone structure is formed on the connecting surface for accommodating the convex cone of the train hook; the concave cone structure includes a cavity formed by the connecting surface toward the inside of the hook head body.

2. The transition coupler according to claim 1, characterized in that: The hook tongue structure includes a convex cone formed on the connecting surface, a hook tongue block is provided on the side of the convex cone facing the concave cone structure, the hook tongue block is formed with an inclined surface, the wider end of the inclined surface is close to the connecting surface, and the edge of the inclined surface close to the connecting surface shrinks toward the side away from the concave cone structure to form a hook tongue.

3. The transition coupler according to claim 1, characterized in that: The transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes a first positioning boss provided on the upper end surface of the bottom plate of the concave cone portion of the BSI coupler; The hook tongue structure includes a convex cone formed on the connecting surface, and a first auxiliary positioning block is provided on the lower end surface of the convex cone; when the transition coupler is connected to the train coupler, the first auxiliary positioning block cooperates with the train coupler.

4. The transition coupler according to claim 1, characterized in that: The transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes: A second auxiliary positioning block is provided on the lower end surface of the concave cone structure cavity; when the transition coupler is connected to the train coupler, the second auxiliary positioning block cooperates with the train coupler.

5. The transition coupler according to claim 1, characterized in that: The transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes: The concave cone structure of the transition coupler and the hook tongue structure form a stepped transition structure, and a stepped transition side surface is formed between the concave cone structure and the hook tongue structure, and the concave cone structure side extends farther below the hook head relative to the hook tongue; when the transition coupler is connected to the train coupler, the stepped transition side surface cooperates with the train coupler.

6. The transition coupler according to claim 2, characterized in that: The transition coupler includes a positioning structure that cooperates with the train coupler, and the positioning structure includes an extension block arranged on the convex cone of the transition coupler and facing the concave cone structure. When the transition coupler is connected to the train coupler, the side of the extension block facing the concave cone structure cooperates with the side of the convex cone of the train coupler.

7. The transition coupler according to claim 1, characterized in that: The shape of the cavity of the concave cone structure is adapted to the external shape of the convex cone structure of the train coupler.

8. The transition coupler according to claim 1 or 7, characterized in that: A concave notch extending toward the hook tail is formed on the side wall of the cavity of the concave cone structure away from the hook tongue.

9. A method for connecting a transition coupler, applied to the transition coupler according to any one of claims 1 to 9, characterized in that: The following steps are involved: The hook tongue of the transition coupler fits with the hook tongue of the train coupler, and the transition coupler and the train coupler are moved close to each other, the hook tongues of the two couplers are squeezed against each other, and the movement is guided until the hook tongues of the two couplers are connected.

10. The method for connecting a transitional vehicle coupler according to claim 9, characterized in that: The following steps are also included: During the connection between the transition coupler and the train coupler, each set of positioning structures matches relative to each other.

Images