Drying equipment for leather processing
By introducing translation devices, glass partitions, extrusion rollers and hot air fans into the leather processing equipment, the problem of excessive labor intensity of operators is solved, and the firm adhesion and efficient drying of the leather is achieved.
Patent Information
- Application Number
- CN202420748230.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In existing leather processing equipment, operators need to constantly scrape the leather folds with force, resulting in excessive labor intensity and affecting work efficiency and safety.
A drying equipment including a translation device, a glass partition, an extrusion roller and a hot air fan is designed. The translation device drives the glass partition to move, the extrusion roller rolls to make the leather stick firmly, and the heating of the hot air fan enhances viscosity and reduces operation. The labor intensity of personnel.
It effectively reduces the labor intensity of the operator, improves the viscosity of the leather adhering to the glass partition, prevents shrinkage and curls, and simplifies the drying process.
Smart Images
Figure CN222274588U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of leather processing, in particular to a drying device for leather processing. Background Art
[0002] Leather is a denatured and non-perishable animal skin obtained through physical and chemical processes such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. Its surface has a special grain layer with natural grain and luster and feels comfortable. When processing leather, in order to ensure quality and appearance, a dryer is needed to dry the leather.
[0003] In the prior art, operators apply a mixed solution of starch and water to the tanned leather, and then spread it flat on a glass partition. In order to prevent shrinkage and curling, the wrinkles of the leather are continuously scraped with a scraper during the laying process. Since starch is insoluble in water, it can form a paste with a certain viscosity after heating. The sticky leather is squeezed by external force to adhere to the glass partition. Therefore, using this method to fix the leather will neither damage the leather nor pollute it. Then the glass partition is sent to a drying box to dry the leather.
[0004] In the actual working process of the prior art, since the operator is required to use the scraper to scrape the wrinkles of the leather continuously, the intensity of this work is too high for the operator. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a drying device for leather processing, which is used to solve the technical problem that in the actual working process of some drying devices for leather processing mentioned in the background technology, the operator needs to continuously use a scraper to smooth the wrinkles of the leather, and the intensity of this work is too high for the operator.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions:
[0007] A drying device for leather processing comprises a workbench and a drying chamber, wherein a translation device is arranged inside the workbench, wherein the translation device is detachably connected with a glass partition, wherein the glass partition is located above the workbench, wherein the translation device drives the glass partition to move along the length direction of the workbench and to move closer to or away from the drying chamber, wherein an extrusion roller which moves along the length direction of the workbench is arranged above the glass partition, wherein a ventilation pipe is rotatably arranged at one end of the extrusion roller, wherein a plurality of first ventilation holes are arranged on the circumferential surface of the extrusion roller, wherein the ventilation pipe is conductively connected with each of the first ventilation holes, wherein a hot air blower is arranged above the workbench, wherein the ventilation pipe is used for connecting the hot air blower, and wherein the extrusion roller is used for extruding sticky leather so that the leather adheres to the glass partition, and drying the moisture on the leather to enhance its viscosity.
[0008] Working principle:
[0009] When in use, the glass partition is installed in the translation device, and then the tanned leather is smeared with a mixed solution of starch and water, and then it is spread flat on the glass partition and laid on the glass partition.
[0010] Then the squeezing roller squeezes the sticky leather along the length direction of the workbench, and the hot air blower is started to blow hot air toward the leather through the ventilation pipe and the first ventilation hole.
[0011] Then the glass partition is started to move the leather closer to the drying room, and then the operator removes the glass partition and hangs it in the drying room for drying.
[0012] Beneficial effects:
[0013] In this scheme, by arranging a glass partition, a squeezing roller, a vent pipe, a first vent hole and a hot air blower, the hot air blower blows hot air toward the leather through the vent pipe and the first vent hole, preliminarily drying the moisture on the leather to enhance its adhesion to the glass partition, and the squeezing roller continuously rolls and squeezes the leather, so that the leather is firmly adhered to the glass partition, thereby preventing the leather from shrinking and curling in the subsequent drying work;
[0014] Since the glass partition is heavy, it is labor-intensive for operators to lift the glass partition to the drying room. By setting a translation device to drive the glass partition closer to the drying room, the labor intensity of the operators is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0016] Figure 2 A schematic diagram of the structure of the cutaway connecting plate, fixing block, mounting shaft, squeezing roller, bearing, sleeve joint and vent pipe;
[0017] Figure 3This is a schematic diagram of the structure cut when the mounting plate is installed in the workbench;
[0018] Figure 4 It is a schematic diagram of the structure of the workbench from above;
[0019] Figure 5 This is a schematic diagram of the assembly of the workbench, moving block, shaft, slide bar and leather;
[0020] Figure 6 This is a schematic diagram of the structure from a top view of the glass partition.
[0021] In the above drawings: workbench 1, fixed column 2, support rod 3, electric slide rail 4, connecting plate 5, glass plate body 6, electric slider 7, cylinder 8, hot air blower 9, fixed block 10, installation shaft 11, squeezing roller 12, leather 13, glass partition 14, motor 15, rotating shaft 16, slide rod 17, moving block 18, locking block 19, third spring 20, third cavity 21, first plug-in slot 22, second plug-in block 23, second spring 24, second cavity 25, first spring 26, first cavity 27, first plug-in block 28, second plug-in slot 29, ventilation channel 30, first ventilation hole 31, second ventilation hole 32, bearing 33, sleeve joint 34, installation slot 35, ventilation pipe 36, installation plate 37, slide slot 38, drying chamber 39. DETAILED DESCRIPTION
[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0023] Example:
[0024] like Figure 1 and Figure 2 As shown, a drying equipment for leather processing includes a workbench 1 and a drying chamber 39, wherein a translation device is provided in the workbench 1, wherein the translation device is detachably connected to a glass partition 14, wherein the glass partition 14 is located above the workbench 1, wherein the translation device drives the glass partition 14 to move along the length direction of the workbench 1, and to approach or move away from the drying chamber 39, wherein an extrusion roller 12 is installed above the glass partition 14 to move along the length direction of the workbench 1, wherein a vent pipe 36 is rotatably installed at one end of the extrusion roller 12, wherein a plurality of first vent holes 31 are provided on the circumferential surface of the extrusion roller 12, wherein the vent pipe 36 is conductively connected to each of the first vent holes 31, wherein a hot air blower 9 is further provided above the workbench 1, wherein the vent pipe 36 is used to connect to the hot air blower 9, wherein the extrusion roller 12 is used to squeeze the sticky leather 13 so that the leather 13 adheres to the glass partition 14, and simultaneously to dry the moisture on the leather 13 to enhance its stickiness.
[0025] In this solution, a glass partition 14, a squeezing roller 12, a vent pipe 36, a first vent hole 31 and a hot air blower 9 are provided. The hot air blower 9 blows hot air toward the leather 13 through the vent pipe 36 and the first vent hole 31 to preliminarily dry the moisture on the leather 13 and enhance its adhesion to the glass partition 14. In addition, the squeezing roller 12 continuously rolls to squeeze the leather 13, so that the leather 13 is firmly adhered to the glass partition 14, thereby preventing the leather 13 from shrinking and curling during subsequent drying work. Since the glass partition 14 is heavy, the labor intensity of the operator lifting the glass partition 14 to the drying chamber 39 is relatively high. By providing a translation device to drive the glass partition 14 close to the drying chamber 39, the distance the operator walks when lifting the glass partition 14 is shortened, thereby greatly reducing the labor intensity of the operator.
[0026] like Figure 1 As shown, it also includes two fixed columns 2 arranged on the workbench 1, a support rod 3 parallel to the length direction of the workbench 1 is fixed between the two fixed columns 2, an electric slide rail 4 is laid on the support rod 3, an electric slider 7 is slidably connected to the electric slide rail 4, and the squeezing roller 12 is installed at the lower part of the electric slider 7. By setting two fixed columns 2, support rod 3, electric slide rail 4 and electric slider 7, the electric slider 7 drives the squeezing roller 12 to move along the length direction of the workbench 1, and this method is mechanized and automated, reducing the labor cost.
[0027] like Figure 1 and Figure 2 As shown, a cylinder 8 is fixedly connected to the lower end of the electric slider 7, the telescopic end of the cylinder 8 faces downward and a connecting plate 5 is fixedly provided at the telescopic end, a fixing block 10 is fixedly connected to each side of the connecting plate 5, a mounting shaft 11 is rotatably connected between the two fixing blocks 10, and the squeezing roller 12 is fixedly sleeved on the mounting shaft 11. By arranging the cylinder 8, the connecting plate 5, the fixing block 10 and the mounting shaft 11, the squeezing roller 12 is driven to move vertically by starting the cylinder 8, so as to adjust the height of the squeezing roller 12 to adapt to squeezing leather 13 of different thicknesses.
[0028] like Figure 1 and Figure 2As shown, a ventilation channel 30 parallel to the axial direction of the mounting shaft 11 is opened in the mounting shaft 11, and a plurality of second ventilation holes 32 are also opened on the surface of the mounting shaft 11, the ventilation channel 30 is conductively connected with each second ventilation hole 32, and each first ventilation hole 31 is conductively connected with each second ventilation hole 32 in a one-to-one correspondence, wherein a bearing 33 is fixedly connected to the side of a fixed block 10 away from the extrusion roller 12 and is fixed to the outer wall of the bearing 33, one end of the mounting shaft 11 rotates through the fixed block 10 and is fixed to the inner wall of the bearing 33, the hot air blower 9 is fixed to the cylinder 8, one end of the ventilation pipe 36 is connected to the output end of the hot air blower 9, and the other end of the ventilation pipe 36 is fixedly sleeved with a sleeve joint 34 on the outer wall, and the sleeve joint 34 is fixed to the outer wall of the bearing 33, and the other end of the mounting shaft 11 is rotatably arranged in another fixed block 10, and the ventilation pipe 36 is conductively connected with the ventilation channel 30.
[0029] Since the mounting shaft 11 is rotatably mounted between the two fixed blocks 10, the bearing 33 and the sleeve joint 34 are arranged to prevent the ventilation pipe 36 from being entangled due to following the rotation of the mounting shaft 11; by arranging the ventilation channel 30 and the second ventilation hole 32, the hot air blower 9 allows the hot air to enter the ventilation channel 30 through the ventilation pipe 36, and then the hot air flows through the ventilation channel 30 to the second ventilation hole 32 and the corresponding first ventilation hole 31 and blows toward the leather 13.
[0030] like Figure 1 , Figure 3 to Figure 6 As shown, a storage cavity is provided on the top of the workbench 1, a motor 15 is fixedly provided on one side of the workbench 1, an output end of the motor 15 is connected to a rotating shaft 16 parallel to the support rod 3, the rotating shaft 16 is rotatably arranged in the storage cavity of the workbench 1, a slide bar 17 is also fixedly connected in the storage cavity of the workbench 1, the rotating shaft 16 and the slide bar 17 are respectively located on both sides of the workbench 1, the translation device includes two moving blocks 18, one end of the two moving blocks 18 are both sleeved on the rotating shaft 16 and threadedly connected to the rotating shaft 16, the other ends of the two moving blocks 18 are both slidably sleeved on the slide bar 17, the moving block 18 is a hollow structure with an opening on the top, The inner walls on both sides of the hollow structure of the moving block 18 near the rotating shaft 16 and the sliding rod 17 are provided with mounting grooves 35, and the mounting grooves 35 are communicated with the hollow space of the moving block 18. The ends of the two moving blocks 18 are provided with first plug-in grooves 22, and the first plug-in grooves 22 are located above the mounting grooves 35 and communicated with the mounting grooves 35. The glass partition 14 includes a glass plate body 6 and mounting plates 37 arranged on both sides thereof. The two mounting plates 37 are respectively slidably arranged in the two mounting grooves 35. Two first plug-in blocks 28 are installed on the two mounting plates 37, and the four first plug-in blocks 28 correspond one by one to the four first plug-in grooves 22.
[0031] By setting a motor 15, a rotating shaft 16, a sliding rod 17 and a moving block 18, starting the motor 15 drives the two moving blocks 18 to move, thereby driving the glass partition 14 to move. This method is mechanized and automated, and reduces the labor cost; by setting an installation groove 35, a first plug-in groove 22 and a first plug-in block 28, when the glass partition 14 is installed in the two moving blocks 18, the two installation plates 37 enter the installation groove 35. At this time, the four first plug-in blocks 28 are plugged into the four first plug-in grooves 22 one by one to lock the installation plate 37.
[0032] like Figure 3 and Figure 5 As shown, two first cavities 27 are formed at both ends of the mounting plate 37, and first springs 26 are fixedly connected in the four first cavities 27. Four first plug-in blocks 28 are fixedly connected to the tops of the four first springs 26 in a one-to-one correspondence and can slide out of the first cavity 27. Second plug-in slots 29 are formed on both sides of the first plug-in blocks 28. Two second cavities 25 are formed in the movable block 18, and the two second cavities 25 are respectively arranged on both sides of the corresponding first plug-in slots 22 and are conductively connected to the first plug-in slots 22. A second spring 24 is fixedly connected in the second cavity 25, and a second plug-in block 23 is fixedly connected to the other end of the second spring 24, and the second plug-in block 23 corresponds to the second plug-in slot 29 in a one-to-one correspondence. By providing the first cavity 27, the first spring 26, the second plug-in slot 29, the second cavity 25, the second spring 24 and the second plug-in block 23, after the first plug-in block 28 is plugged into the one-to-one corresponding first plug-in slot 22, the second plug-in block 23 is plugged into the one-to-one corresponding second plug-in slot 29, thereby further strengthening the locking effect of the glass partition 14.
[0033] like Figure 3 and Figure 4As shown, both ends of the moving block 18 are provided with a third cavity 21, the third cavity 21 is located above the first plug-in slot 22 and is connected to the first plug-in slot 22, a third spring 20 is fixedly connected in the third cavity 21, and a locking block 19 is fixedly connected between the bottom ends of the two third springs 20 on the same side, one end of the locking block 19 penetrates into one of the moving blocks 18 and the other end penetrates through the other moving block 18, and a slide groove 38 is formed at both ends of one of the moving blocks 18, and a vertical slide rail is provided on the inner wall of the moving block 18, and the locking block 19 is provided with a vertical slide rail. One end of the fixed block 19 is slidably arranged in the slide rail, and two slide grooves 38 are formed at the end of the other movable block 18, and the slide grooves 38 are all connected with the corresponding first plug-in grooves 22. The locking block 19 is vertically slidably arranged in the three slide grooves 38 on the same side. Two abutment blocks are fixed on the locking block 19, and the two abutment blocks are respectively located in the two third cavities 21. The abutment blocks are used to abut and squeeze the first plug-in block 28 when the locking block 19 moves vertically downward, so that the first plug-in block 28 is disengaged from the relative locking with the second plug-in block 23.
[0034] By setting the third cavity 21, the third spring 20, the locking block 19, the slide groove 38 and the slide rail, when the glass partition 14 needs to be taken out, the glass partition 14 needs to be unlocked. At this time, the locking block 19 is pressed downward, and the locking block 19 squeezes the first plug-in block 28 to disengage the first plug-in block 28 from being locked relative to the second plug-in block 23, and then the glass partition 14 is moved out of the two moving blocks 18.
[0035] Working principle:
[0036] When in use, the operator lifts the glass partition 14 so that the two mounting plates 37 enter the mounting grooves 35. At this time, in the process of the first plug-in block 28 being plugged into the one-to-one corresponding first plug-in groove 22, the first spring 26 pushes the first plug-in block 28 into the first plug-in groove 22. At this time, the first plug-in block 28 squeezes the second plug-in block 23, and the second spring 24 contracts to drive the second plug-in block 23 to move. When the first plug-in block 28 continues to be plugged into the first plug-in groove 22, the second spring 24 pushes the second plug-in block 23 to move toward the second plug-in groove 29, so that the second plug-in block 23 is plugged into the second plug-in groove 29 to lock the glass partition 14.
[0037] Then the tanned leather 13 is coated with a mixed solution of starch and water, and then spread on the glass plate body 6, and laid on the glass plate body 6;
[0038] Then the cylinder 8 is started, and the telescopic end of the cylinder 8 drives the squeezing roller 12 to move vertically downward to abut against the leather 13;
[0039] Then, the hot air blower 9 and the electric slider 7 are started. At this time, the hot air blower 9 sends hot air into the ventilation channel 30 through the ventilation pipe 36. Then, the hot air flows through the ventilation channel 30 to the second ventilation hole 32 and the corresponding first ventilation hole 31 and blows toward the leather 13. The moisture on the surface of the leather 13 evaporates, and the adhesion of the leather 13 to the glass plate body 6 is enhanced. The electric slider 7 drives the squeezing roller 12 to move along the length direction of the workbench 1 and squeeze the sticky leather 13, so that the leather 13 is firmly bonded to the glass plate body 6 to prevent shrinkage and curling.
[0040] Then start the motor 15, and the output end of the motor 15 drives the rotating shaft 16 to rotate. The rotation of the rotating shaft 16 drives the moving block 18 to move on the rotating shaft 16 and the sliding rod 17 to close to the drying chamber 39, and then the operator presses the locking block 19 downward, and the locking block 19 squeezes the first plug-in block 28. The first plug-in block 28 moves downward and squeezes the second plug-in block 23. The second spring 24 contracts and drives the second plug-in block 23 to disengage from the second plug-in slot 29, so that the first plug-in block 28 and the second plug-in block 23 are unlocked, and then the glass partition 14 is moved out of the workbench 1, and the glass partition 14 is removed and hung in the drying chamber 39 for drying. From then on, the whole operation is completed.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A drying device for leather processing, characterized in that: The invention comprises a workbench (1) and a drying chamber (39), wherein a translation device is arranged in the workbench, wherein the translation device is detachably connected to a glass partition (14), wherein the glass partition is located above the workbench (1), wherein the translation device drives the glass partition (14) to move along the length direction of the workbench (1) and to move closer to or away from the drying chamber (39), wherein an extrusion roller (12) is arranged above the glass partition (14) and moves along the length direction of the workbench (1), wherein one end of the extrusion roller (12) is rotated A ventilation pipe (36) is dynamically installed, a plurality of first ventilation holes (31) are opened on the circumferential surface of the squeezing roller (12), and the ventilation pipe (36) is conductively connected to each of the first ventilation holes (31). A hot air blower (9) is also arranged above the workbench, and the ventilation pipe (36) is used to connect the hot air blower (9). The squeezing roller (12) is used to squeeze the sticky leather (13) so that the leather (13) is bonded to the glass partition (14), while drying the moisture on the leather (13) to enhance its stickiness.
2. A drying device for leather processing according to claim 1, characterized in that: It also includes two fixed columns (2) arranged on the workbench (1), a support rod (3) parallel to the length direction of the workbench (1) is fixed between the two fixed columns (2), an electric slide rail (4) is laid on the support rod (3), an electric slider (7) is slidably connected to the electric slide rail (4), and the squeezing roller (12) is installed at the bottom of the electric slider (7).
3. A drying device for leather processing according to claim 2, characterized in that: A cylinder (8) is fixedly connected to the lower end of the electric slider (7), the telescopic end of the cylinder (8) faces downward and is fixedly provided with a connecting plate (5), a fixing block (10) is fixedly connected to each of the two sides of the connecting plate (5), a mounting shaft (11) is rotatably connected between the two fixing blocks (10), and the squeezing roller (12) is fixedly sleeved on the mounting shaft (11).
4. A drying device for leather processing according to claim 3, characterized in that: A ventilation channel (30) parallel to the axial direction of the installation shaft (11) is formed in the installation shaft (11), and a plurality of second ventilation holes (32) are formed on the surface of the installation shaft (11). The ventilation channel (30) is connected to each second ventilation hole (32), and each first ventilation hole (31) is connected to each second ventilation hole (32) in a one-to-one correspondence. A bearing (33) is fixedly connected to the side of a fixed block (10) away from the squeezing roller (12) and is fixed to the outer wall of the bearing (33). One end of the installation shaft (11) rotates through the fixed block (10) and is fixedly connected to the inner wall of the bearing (33); the hot air blower (9) is fixedly connected to the cylinder (8); one end of the ventilation pipe (36) is connected to the output end of the hot air blower (9); the other end of the ventilation pipe (36) is provided with a sleeve joint (34); the sleeve joint (34) is sleeved on the outer wall of the bearing (33); the ventilation pipe (36) is conductively connected to the ventilation channel (30); and the other end of the installation shaft (11) is rotatably arranged in another fixed block (10).
5. The drying equipment for leather processing according to claim 1, characterized in that: The workbench (1) has a storage cavity at the top, a motor (15) is fixedly arranged on one side of the workbench (1), an output end of the motor (15) is connected to a rotating shaft (16) parallel to the support rod (3), the rotating shaft (16) is rotatably arranged in the storage cavity of the workbench (1), a sliding rod (17) is also fixedly arranged in the storage cavity of the workbench (1), the rotating shaft (16) and the sliding rod (17) are respectively located on both sides of the workbench (1), the translation device comprises two moving blocks (18), one end of the two moving blocks (18) are sleeved on the rotating shaft (16) and are threadedly connected to the rotating shaft (16), the other ends of the two moving blocks (18) are slidably sleeved on the sliding rod (17), the moving blocks (18) are hollow structures with an opening at the top, and the moving blocks (18) are provided with a plurality of movable blocks (18) and a plurality of movable ... The inner walls on both sides of the hollow structure of the movable block (18) near the rotating shaft (16) and the sliding rod (17) are provided with mounting grooves (35), and the mounting grooves (35) are connected with the hollow space of the movable block (18). The ends of the two movable blocks (18) are provided with first plug-in grooves (22), and the first plug-in grooves (22) are located above the mounting grooves (35) and are connected with the mounting grooves (35). The glass partition (14) includes a glass plate body (6) and mounting plates (37) arranged on both sides thereof. The two mounting plates (37) are respectively slidably arranged in the two mounting grooves (35). Two first plug-in blocks (28) are installed on the two mounting plates (37), and the four first plug-in blocks (28) correspond to the four first plug-in grooves (22) one by one.
6. A drying device for leather processing according to claim 5, characterized in that: Two first cavities (27) are respectively formed at the two ends of the mounting plate (37), and the four first cavities (27) are each fixedly connected with a first spring (26). The four first plug-in blocks (28) are fixedly connected to the tops of the four first springs (26) in a one-to-one correspondence and can slide out of the first cavities (27). Second plug-in slots (29) are respectively formed on both sides of the first plug-in blocks (28). Two second cavities (25) are respectively formed in the movable block (18), and the two second cavities (25) are respectively arranged on both sides of the corresponding first plug-in slots (22) and are both conductively connected to the first plug-in slots (22). A second spring (24) is fixedly connected in the second cavity (25), and the other end of the second spring (24) is fixedly connected with a second plug-in block (23), and the second plug-in block (23) corresponds to the second plug-in slot (29) in a one-to-one correspondence.
7. A drying device for leather processing according to claim 6, characterized in that: A third cavity (21) is formed at both ends of the moving block (18), the third cavity (21) is located above the first plug-in slot (22) and is connected to the first plug-in slot (22), a third spring (20) is fixedly connected in the third cavity (21), a locking block (19) is fixedly connected between the bottom ends of the two third springs (20) on the same side, one end of the locking block (19) is inserted into one of the moving blocks (18) and the other end is inserted through the other moving block (18). Blocks (18), wherein both ends of one moving block (18) are provided with a slide groove (38), the inner wall of the moving block (18) is provided with a vertical slide rail, one end of the locking block (19) is slidably arranged in the slide rail, and the end of the other moving block (18) is provided with two slide grooves (38), the slide grooves (38) are connected with the corresponding first plug-in grooves (22), and the locking block (19) is vertically slidably arranged in the three slide grooves (38) on the same side.